| Index: Source/core/html/canvas/WebGLRenderingContext.cpp
|
| diff --git a/Source/core/html/canvas/WebGLRenderingContext.cpp b/Source/core/html/canvas/WebGLRenderingContext.cpp
|
| index d3af1c6765d62a0197c5c0e7e3c5a512a49d78e7..eb449b64012a7ddfe450a0da3316142528e9f144 100644
|
| --- a/Source/core/html/canvas/WebGLRenderingContext.cpp
|
| +++ b/Source/core/html/canvas/WebGLRenderingContext.cpp
|
| @@ -26,15 +26,7 @@
|
| #include "config.h"
|
| #include "core/html/canvas/WebGLRenderingContext.h"
|
|
|
| -#include "RuntimeEnabledFeatures.h"
|
| -#include "bindings/v8/ExceptionMessages.h"
|
| -#include "bindings/v8/ExceptionState.h"
|
| -#include "core/dom/ExceptionCode.h"
|
| -#include "core/fetch/ImageResource.h"
|
| -#include "core/html/HTMLCanvasElement.h"
|
| -#include "core/html/HTMLImageElement.h"
|
| -#include "core/html/HTMLVideoElement.h"
|
| -#include "core/html/ImageData.h"
|
| +#include "core/frame/Frame.h"
|
| #include "core/html/canvas/ANGLEInstancedArrays.h"
|
| #include "core/html/canvas/EXTFragDepth.h"
|
| #include "core/html/canvas/EXTTextureFilterAnisotropic.h"
|
| @@ -45,441 +37,27 @@
|
| #include "core/html/canvas/OESTextureHalfFloat.h"
|
| #include "core/html/canvas/OESTextureHalfFloatLinear.h"
|
| #include "core/html/canvas/OESVertexArrayObject.h"
|
| -#include "core/html/canvas/WebGLActiveInfo.h"
|
| -#include "core/html/canvas/WebGLBuffer.h"
|
| #include "core/html/canvas/WebGLCompressedTextureATC.h"
|
| #include "core/html/canvas/WebGLCompressedTexturePVRTC.h"
|
| #include "core/html/canvas/WebGLCompressedTextureS3TC.h"
|
| #include "core/html/canvas/WebGLContextAttributes.h"
|
| #include "core/html/canvas/WebGLContextEvent.h"
|
| -#include "core/html/canvas/WebGLContextGroup.h"
|
| #include "core/html/canvas/WebGLDebugRendererInfo.h"
|
| #include "core/html/canvas/WebGLDebugShaders.h"
|
| #include "core/html/canvas/WebGLDepthTexture.h"
|
| #include "core/html/canvas/WebGLDrawBuffers.h"
|
| -#include "core/html/canvas/WebGLFramebuffer.h"
|
| #include "core/html/canvas/WebGLLoseContext.h"
|
| -#include "core/html/canvas/WebGLProgram.h"
|
| -#include "core/html/canvas/WebGLRenderbuffer.h"
|
| -#include "core/html/canvas/WebGLShader.h"
|
| -#include "core/html/canvas/WebGLShaderPrecisionFormat.h"
|
| -#include "core/html/canvas/WebGLTexture.h"
|
| -#include "core/html/canvas/WebGLUniformLocation.h"
|
| -#include "core/inspector/InspectorInstrumentation.h"
|
| #include "core/loader/FrameLoader.h"
|
| #include "core/loader/FrameLoaderClient.h"
|
| -#include "core/frame/Frame.h"
|
| #include "core/frame/Settings.h"
|
| #include "core/rendering/RenderBox.h"
|
| #include "platform/CheckedInt.h"
|
| #include "platform/NotImplemented.h"
|
| -#include "platform/geometry/IntSize.h"
|
| -#include "platform/graphics/UnacceleratedImageBufferSurface.h"
|
| #include "platform/graphics/gpu/DrawingBuffer.h"
|
| #include "public/platform/Platform.h"
|
|
|
| -#include "wtf/PassOwnPtr.h"
|
| -#include "wtf/Uint32Array.h"
|
| -#include "wtf/text/StringBuilder.h"
|
| -
|
| namespace WebCore {
|
|
|
| -const double secondsBetweenRestoreAttempts = 1.0;
|
| -const int maxGLErrorsAllowedToConsole = 256;
|
| -const unsigned maxGLActiveContexts = 16;
|
| -
|
| -Vector<WebGLRenderingContext*>& WebGLRenderingContext::activeContexts()
|
| -{
|
| - DEFINE_STATIC_LOCAL(Vector<WebGLRenderingContext*>, activeContexts, ());
|
| - return activeContexts;
|
| -}
|
| -
|
| -Vector<WebGLRenderingContext*>& WebGLRenderingContext::forciblyEvictedContexts()
|
| -{
|
| - DEFINE_STATIC_LOCAL(Vector<WebGLRenderingContext*>, forciblyEvictedContexts, ());
|
| - return forciblyEvictedContexts;
|
| -}
|
| -
|
| -void WebGLRenderingContext::forciblyLoseOldestContext(const String& reason)
|
| -{
|
| - size_t candidateID = oldestContextIndex();
|
| - if (candidateID >= activeContexts().size())
|
| - return;
|
| -
|
| - WebGLRenderingContext* candidate = activeContexts()[candidateID];
|
| -
|
| - activeContexts().remove(candidateID);
|
| -
|
| - candidate->printWarningToConsole(reason);
|
| - InspectorInstrumentation::didFireWebGLWarning(candidate->canvas());
|
| -
|
| - // This will call deactivateContext once the context has actually been lost.
|
| - candidate->forceLostContext(WebGLRenderingContext::SyntheticLostContext);
|
| -}
|
| -
|
| -size_t WebGLRenderingContext::oldestContextIndex()
|
| -{
|
| - if (!activeContexts().size())
|
| - return maxGLActiveContexts;
|
| -
|
| - WebGLRenderingContext* candidate = activeContexts().first();
|
| - size_t candidateID = 0;
|
| - for (size_t ii = 1; ii < activeContexts().size(); ++ii) {
|
| - WebGLRenderingContext* context = activeContexts()[ii];
|
| - if (context->webGraphicsContext3D() && candidate->webGraphicsContext3D() && context->webGraphicsContext3D()->lastFlushID() < candidate->webGraphicsContext3D()->lastFlushID()) {
|
| - candidate = context;
|
| - candidateID = ii;
|
| - }
|
| - }
|
| -
|
| - return candidateID;
|
| -}
|
| -
|
| -IntSize WebGLRenderingContext::oldestContextSize()
|
| -{
|
| - IntSize size;
|
| -
|
| - size_t candidateID = oldestContextIndex();
|
| - if (candidateID < activeContexts().size()) {
|
| - WebGLRenderingContext* candidate = activeContexts()[candidateID];
|
| - size.setWidth(candidate->drawingBufferWidth());
|
| - size.setHeight(candidate->drawingBufferHeight());
|
| - }
|
| -
|
| - return size;
|
| -}
|
| -
|
| -void WebGLRenderingContext::activateContext(WebGLRenderingContext* context)
|
| -{
|
| - unsigned removedContexts = 0;
|
| - while (activeContexts().size() >= maxGLActiveContexts && removedContexts < maxGLActiveContexts) {
|
| - forciblyLoseOldestContext("WARNING: Too many active WebGL contexts. Oldest context will be lost.");
|
| - removedContexts++;
|
| - }
|
| -
|
| - if (!activeContexts().contains(context))
|
| - activeContexts().append(context);
|
| -}
|
| -
|
| -void WebGLRenderingContext::deactivateContext(WebGLRenderingContext* context, bool addToEvictedList)
|
| -{
|
| - size_t position = activeContexts().find(context);
|
| - if (position != WTF::kNotFound)
|
| - activeContexts().remove(position);
|
| -
|
| - if (addToEvictedList && !forciblyEvictedContexts().contains(context))
|
| - forciblyEvictedContexts().append(context);
|
| -}
|
| -
|
| -void WebGLRenderingContext::willDestroyContext(WebGLRenderingContext* context)
|
| -{
|
| - size_t position = forciblyEvictedContexts().find(context);
|
| - if (position != WTF::kNotFound)
|
| - forciblyEvictedContexts().remove(position);
|
| -
|
| - deactivateContext(context, false);
|
| -
|
| - // Try to re-enable the oldest inactive contexts.
|
| - while(activeContexts().size() < maxGLActiveContexts && forciblyEvictedContexts().size()) {
|
| - WebGLRenderingContext* evictedContext = forciblyEvictedContexts().first();
|
| - if (!evictedContext->m_restoreAllowed) {
|
| - forciblyEvictedContexts().remove(0);
|
| - continue;
|
| - }
|
| -
|
| - IntSize desiredSize = evictedContext->m_drawingBuffer->adjustSize(evictedContext->clampedCanvasSize());
|
| -
|
| - // If there's room in the pixel budget for this context, restore it.
|
| - if (!desiredSize.isEmpty()) {
|
| - forciblyEvictedContexts().remove(0);
|
| - evictedContext->forceRestoreContext();
|
| - activeContexts().append(evictedContext);
|
| - }
|
| - break;
|
| - }
|
| -}
|
| -
|
| -class WebGLRenderingContextEvictionManager : public ContextEvictionManager {
|
| -public:
|
| - void forciblyLoseOldestContext(const String& reason) {
|
| - WebGLRenderingContext::forciblyLoseOldestContext(reason);
|
| - };
|
| - IntSize oldestContextSize() {
|
| - return WebGLRenderingContext::oldestContextSize();
|
| - };
|
| -};
|
| -
|
| -namespace {
|
| -
|
| - class ScopedDrawingBufferBinder {
|
| - public:
|
| - ScopedDrawingBufferBinder(DrawingBuffer* drawingBuffer, WebGLFramebuffer* framebufferBinding)
|
| - : m_drawingBuffer(drawingBuffer)
|
| - , m_framebufferBinding(framebufferBinding)
|
| - {
|
| - // Commit DrawingBuffer if needed (e.g., for multisampling)
|
| - if (!m_framebufferBinding && m_drawingBuffer)
|
| - m_drawingBuffer->commit();
|
| - }
|
| -
|
| - ~ScopedDrawingBufferBinder()
|
| - {
|
| - // Restore DrawingBuffer if needed
|
| - if (!m_framebufferBinding && m_drawingBuffer)
|
| - m_drawingBuffer->bind();
|
| - }
|
| -
|
| - private:
|
| - DrawingBuffer* m_drawingBuffer;
|
| - WebGLFramebuffer* m_framebufferBinding;
|
| - };
|
| -
|
| - Platform3DObject objectOrZero(WebGLObject* object)
|
| - {
|
| - return object ? object->object() : 0;
|
| - }
|
| -
|
| - GLint clamp(GLint value, GLint min, GLint max)
|
| - {
|
| - if (value < min)
|
| - value = min;
|
| - if (value > max)
|
| - value = max;
|
| - return value;
|
| - }
|
| -
|
| - // Return true if a character belongs to the ASCII subset as defined in
|
| - // GLSL ES 1.0 spec section 3.1.
|
| - bool validateCharacter(unsigned char c)
|
| - {
|
| - // Printing characters are valid except " $ ` @ \ ' DEL.
|
| - if (c >= 32 && c <= 126
|
| - && c != '"' && c != '$' && c != '`' && c != '@' && c != '\\' && c != '\'')
|
| - return true;
|
| - // Horizontal tab, line feed, vertical tab, form feed, carriage return
|
| - // are also valid.
|
| - if (c >= 9 && c <= 13)
|
| - return true;
|
| - return false;
|
| - }
|
| -
|
| - bool isPrefixReserved(const String& name)
|
| - {
|
| - if (name.startsWith("gl_") || name.startsWith("webgl_") || name.startsWith("_webgl_"))
|
| - return true;
|
| - return false;
|
| - }
|
| -
|
| - // Strips comments from shader text. This allows non-ASCII characters
|
| - // to be used in comments without potentially breaking OpenGL
|
| - // implementations not expecting characters outside the GLSL ES set.
|
| - class StripComments {
|
| - public:
|
| - StripComments(const String& str)
|
| - : m_parseState(BeginningOfLine)
|
| - , m_sourceString(str)
|
| - , m_length(str.length())
|
| - , m_position(0)
|
| - {
|
| - parse();
|
| - }
|
| -
|
| - String result()
|
| - {
|
| - return m_builder.toString();
|
| - }
|
| -
|
| - private:
|
| - bool hasMoreCharacters() const
|
| - {
|
| - return (m_position < m_length);
|
| - }
|
| -
|
| - void parse()
|
| - {
|
| - while (hasMoreCharacters()) {
|
| - process(current());
|
| - // process() might advance the position.
|
| - if (hasMoreCharacters())
|
| - advance();
|
| - }
|
| - }
|
| -
|
| - void process(UChar);
|
| -
|
| - bool peek(UChar& character) const
|
| - {
|
| - if (m_position + 1 >= m_length)
|
| - return false;
|
| - character = m_sourceString[m_position + 1];
|
| - return true;
|
| - }
|
| -
|
| - UChar current()
|
| - {
|
| - ASSERT_WITH_SECURITY_IMPLICATION(m_position < m_length);
|
| - return m_sourceString[m_position];
|
| - }
|
| -
|
| - void advance()
|
| - {
|
| - ++m_position;
|
| - }
|
| -
|
| - static bool isNewline(UChar character)
|
| - {
|
| - // Don't attempt to canonicalize newline related characters.
|
| - return (character == '\n' || character == '\r');
|
| - }
|
| -
|
| - void emit(UChar character)
|
| - {
|
| - m_builder.append(character);
|
| - }
|
| -
|
| - enum ParseState {
|
| - // Have not seen an ASCII non-whitespace character yet on
|
| - // this line. Possible that we might see a preprocessor
|
| - // directive.
|
| - BeginningOfLine,
|
| -
|
| - // Have seen at least one ASCII non-whitespace character
|
| - // on this line.
|
| - MiddleOfLine,
|
| -
|
| - // Handling a preprocessor directive. Passes through all
|
| - // characters up to the end of the line. Disables comment
|
| - // processing.
|
| - InPreprocessorDirective,
|
| -
|
| - // Handling a single-line comment. The comment text is
|
| - // replaced with a single space.
|
| - InSingleLineComment,
|
| -
|
| - // Handling a multi-line comment. Newlines are passed
|
| - // through to preserve line numbers.
|
| - InMultiLineComment
|
| - };
|
| -
|
| - ParseState m_parseState;
|
| - String m_sourceString;
|
| - unsigned m_length;
|
| - unsigned m_position;
|
| - StringBuilder m_builder;
|
| - };
|
| -
|
| - void StripComments::process(UChar c)
|
| - {
|
| - if (isNewline(c)) {
|
| - // No matter what state we are in, pass through newlines
|
| - // so we preserve line numbers.
|
| - emit(c);
|
| -
|
| - if (m_parseState != InMultiLineComment)
|
| - m_parseState = BeginningOfLine;
|
| -
|
| - return;
|
| - }
|
| -
|
| - UChar temp = 0;
|
| - switch (m_parseState) {
|
| - case BeginningOfLine:
|
| - if (WTF::isASCIISpace(c)) {
|
| - emit(c);
|
| - break;
|
| - }
|
| -
|
| - if (c == '#') {
|
| - m_parseState = InPreprocessorDirective;
|
| - emit(c);
|
| - break;
|
| - }
|
| -
|
| - // Transition to normal state and re-handle character.
|
| - m_parseState = MiddleOfLine;
|
| - process(c);
|
| - break;
|
| -
|
| - case MiddleOfLine:
|
| - if (c == '/' && peek(temp)) {
|
| - if (temp == '/') {
|
| - m_parseState = InSingleLineComment;
|
| - emit(' ');
|
| - advance();
|
| - break;
|
| - }
|
| -
|
| - if (temp == '*') {
|
| - m_parseState = InMultiLineComment;
|
| - // Emit the comment start in case the user has
|
| - // an unclosed comment and we want to later
|
| - // signal an error.
|
| - emit('/');
|
| - emit('*');
|
| - advance();
|
| - break;
|
| - }
|
| - }
|
| -
|
| - emit(c);
|
| - break;
|
| -
|
| - case InPreprocessorDirective:
|
| - // No matter what the character is, just pass it
|
| - // through. Do not parse comments in this state. This
|
| - // might not be the right thing to do long term, but it
|
| - // should handle the #error preprocessor directive.
|
| - emit(c);
|
| - break;
|
| -
|
| - case InSingleLineComment:
|
| - // The newline code at the top of this function takes care
|
| - // of resetting our state when we get out of the
|
| - // single-line comment. Swallow all other characters.
|
| - break;
|
| -
|
| - case InMultiLineComment:
|
| - if (c == '*' && peek(temp) && temp == '/') {
|
| - emit('*');
|
| - emit('/');
|
| - m_parseState = MiddleOfLine;
|
| - advance();
|
| - break;
|
| - }
|
| -
|
| - // Swallow all other characters. Unclear whether we may
|
| - // want or need to just emit a space per character to try
|
| - // to preserve column numbers for debugging purposes.
|
| - break;
|
| - }
|
| - }
|
| -} // namespace anonymous
|
| -
|
| -class WebGLRenderingContextLostCallback : public blink::WebGraphicsContext3D::WebGraphicsContextLostCallback {
|
| - WTF_MAKE_FAST_ALLOCATED;
|
| -public:
|
| - explicit WebGLRenderingContextLostCallback(WebGLRenderingContext* cb) : m_context(cb) { }
|
| - virtual void onContextLost() { m_context->forceLostContext(WebGLRenderingContext::RealLostContext); }
|
| - virtual ~WebGLRenderingContextLostCallback() {}
|
| -private:
|
| - WebGLRenderingContext* m_context;
|
| -};
|
| -
|
| -class WebGLRenderingContextErrorMessageCallback : public blink::WebGraphicsContext3D::WebGraphicsErrorMessageCallback {
|
| - WTF_MAKE_FAST_ALLOCATED;
|
| -public:
|
| - explicit WebGLRenderingContextErrorMessageCallback(WebGLRenderingContext* cb) : m_context(cb) { }
|
| - virtual void onErrorMessage(const blink::WebString& message, blink::WGC3Dint)
|
| - {
|
| - if (m_context->m_synthesizedErrorsToConsole)
|
| - m_context->printGLErrorToConsole(message);
|
| - InspectorInstrumentation::didFireWebGLErrorOrWarning(m_context->canvas(), message);
|
| - }
|
| - virtual ~WebGLRenderingContextErrorMessageCallback() { }
|
| -private:
|
| - WebGLRenderingContext* m_context;
|
| -};
|
| -
|
| PassOwnPtr<WebGLRenderingContext> WebGLRenderingContext::create(HTMLCanvasElement* canvas, WebGLContextAttributes* attrs)
|
| {
|
| Document& document = canvas->document();
|
| @@ -513,6 +91,7 @@ PassOwnPtr<WebGLRenderingContext> WebGLRenderingContext::create(HTMLCanvasElemen
|
| context->pushGroupMarkerEXT("WebGLRenderingContext");
|
|
|
| OwnPtr<WebGLRenderingContext> renderingContext = adoptPtr(new WebGLRenderingContext(canvas, context.release(), attrs));
|
| + renderingContext->registerContextExtensions();
|
| renderingContext->suspendIfNeeded();
|
|
|
| if (renderingContext->m_drawingBuffer->isZeroSized()) {
|
| @@ -524,45 +103,18 @@ PassOwnPtr<WebGLRenderingContext> WebGLRenderingContext::create(HTMLCanvasElemen
|
| }
|
|
|
| WebGLRenderingContext::WebGLRenderingContext(HTMLCanvasElement* passedCanvas, PassOwnPtr<blink::WebGraphicsContext3D> context, WebGLContextAttributes* requestedAttributes)
|
| - : CanvasRenderingContext(passedCanvas)
|
| - , ActiveDOMObject(&passedCanvas->document())
|
| - , m_context(context)
|
| - , m_drawingBuffer(nullptr)
|
| - , m_dispatchContextLostEventTimer(this, &WebGLRenderingContext::dispatchContextLostEvent)
|
| - , m_restoreAllowed(false)
|
| - , m_restoreTimer(this, &WebGLRenderingContext::maybeRestoreContext)
|
| - , m_generatedImageCache(4)
|
| - , m_contextLost(false)
|
| - , m_contextLostMode(SyntheticLostContext)
|
| - , m_requestedAttributes(requestedAttributes->clone())
|
| - , m_synthesizedErrorsToConsole(true)
|
| - , m_numGLErrorsToConsoleAllowed(maxGLErrorsAllowedToConsole)
|
| - , m_multisamplingAllowed(false)
|
| - , m_multisamplingObserverRegistered(false)
|
| - , m_onePlusMaxEnabledAttribIndex(0)
|
| - , m_onePlusMaxNonDefaultTextureUnit(0)
|
| + : WebGLRenderingContextBase(passedCanvas, context, requestedAttributes)
|
| {
|
| - ASSERT(m_context);
|
| ScriptWrappable::init(this);
|
| +}
|
|
|
| - m_contextGroup = WebGLContextGroup::create();
|
| - m_contextGroup->addContext(this);
|
| -
|
| - m_maxViewportDims[0] = m_maxViewportDims[1] = 0;
|
| - m_context->getIntegerv(GL_MAX_VIEWPORT_DIMS, m_maxViewportDims);
|
| -
|
| - RefPtr<WebGLRenderingContextEvictionManager> contextEvictionManager = adoptRef(new WebGLRenderingContextEvictionManager());
|
| -
|
| - // Create the DrawingBuffer and initialize the platform layer.
|
| - DrawingBuffer::PreserveDrawingBuffer preserve = requestedAttributes->preserveDrawingBuffer() ? DrawingBuffer::Preserve : DrawingBuffer::Discard;
|
| - m_drawingBuffer = DrawingBuffer::create(m_context.get(), clampedCanvasSize(), preserve, contextEvictionManager.release());
|
| +WebGLRenderingContext::~WebGLRenderingContext()
|
| +{
|
|
|
| - if (!m_drawingBuffer->isZeroSized()) {
|
| - m_drawingBuffer->bind();
|
| - setupFlags();
|
| - initializeNewContext();
|
| - }
|
| +}
|
|
|
| +void WebGLRenderingContext::registerContextExtensions()
|
| +{
|
| // Register extensions.
|
| static const char* const webkitPrefix[] = { "WEBKIT_", 0, };
|
| static const char* const bothPrefixes[] = { "", "WEBKIT_", 0, };
|
| @@ -591,5026 +143,4 @@ WebGLRenderingContext::WebGLRenderingContext(HTMLCanvasElement* passedCanvas, Pa
|
| registerExtension<WebGLDebugShaders>(m_webglDebugShaders, PrivilegedExtension);
|
| }
|
|
|
| -void WebGLRenderingContext::initializeNewContext()
|
| -{
|
| - ASSERT(!isContextLost());
|
| - m_needsUpdate = true;
|
| - m_markedCanvasDirty = false;
|
| - m_activeTextureUnit = 0;
|
| - m_packAlignment = 4;
|
| - m_unpackAlignment = 4;
|
| - m_unpackFlipY = false;
|
| - m_unpackPremultiplyAlpha = false;
|
| - m_unpackColorspaceConversion = GC3D_BROWSER_DEFAULT_WEBGL;
|
| - m_boundArrayBuffer = nullptr;
|
| - m_currentProgram = nullptr;
|
| - m_framebufferBinding = nullptr;
|
| - m_renderbufferBinding = nullptr;
|
| - m_depthMask = true;
|
| - m_stencilEnabled = false;
|
| - m_stencilMask = 0xFFFFFFFF;
|
| - m_stencilMaskBack = 0xFFFFFFFF;
|
| - m_stencilFuncRef = 0;
|
| - m_stencilFuncRefBack = 0;
|
| - m_stencilFuncMask = 0xFFFFFFFF;
|
| - m_stencilFuncMaskBack = 0xFFFFFFFF;
|
| - m_layerCleared = false;
|
| - m_numGLErrorsToConsoleAllowed = maxGLErrorsAllowedToConsole;
|
| -
|
| - m_clearColor[0] = m_clearColor[1] = m_clearColor[2] = m_clearColor[3] = 0;
|
| - m_scissorEnabled = false;
|
| - m_clearDepth = 1;
|
| - m_clearStencil = 0;
|
| - m_colorMask[0] = m_colorMask[1] = m_colorMask[2] = m_colorMask[3] = true;
|
| -
|
| - GLint numCombinedTextureImageUnits = 0;
|
| - m_context->getIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &numCombinedTextureImageUnits);
|
| - m_textureUnits.clear();
|
| - m_textureUnits.resize(numCombinedTextureImageUnits);
|
| -
|
| - GLint numVertexAttribs = 0;
|
| - m_context->getIntegerv(GL_MAX_VERTEX_ATTRIBS, &numVertexAttribs);
|
| - m_maxVertexAttribs = numVertexAttribs;
|
| -
|
| - m_maxTextureSize = 0;
|
| - m_context->getIntegerv(GL_MAX_TEXTURE_SIZE, &m_maxTextureSize);
|
| - m_maxTextureLevel = WebGLTexture::computeLevelCount(m_maxTextureSize, m_maxTextureSize);
|
| - m_maxCubeMapTextureSize = 0;
|
| - m_context->getIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, &m_maxCubeMapTextureSize);
|
| - m_maxCubeMapTextureLevel = WebGLTexture::computeLevelCount(m_maxCubeMapTextureSize, m_maxCubeMapTextureSize);
|
| - m_maxRenderbufferSize = 0;
|
| - m_context->getIntegerv(GL_MAX_RENDERBUFFER_SIZE, &m_maxRenderbufferSize);
|
| -
|
| - // These two values from EXT_draw_buffers are lazily queried.
|
| - m_maxDrawBuffers = 0;
|
| - m_maxColorAttachments = 0;
|
| -
|
| - m_backDrawBuffer = GL_BACK;
|
| -
|
| - m_defaultVertexArrayObject = WebGLVertexArrayObjectOES::create(this, WebGLVertexArrayObjectOES::VaoTypeDefault);
|
| - addContextObject(m_defaultVertexArrayObject.get());
|
| - m_boundVertexArrayObject = m_defaultVertexArrayObject;
|
| -
|
| - m_vertexAttribValue.resize(m_maxVertexAttribs);
|
| -
|
| - createFallbackBlackTextures1x1();
|
| -
|
| - m_drawingBuffer->reset(clampedCanvasSize());
|
| -
|
| - m_context->viewport(0, 0, drawingBufferWidth(), drawingBufferHeight());
|
| - m_context->scissor(0, 0, drawingBufferWidth(), drawingBufferHeight());
|
| -
|
| - m_contextLostCallbackAdapter = adoptPtr(new WebGLRenderingContextLostCallback(this));
|
| - m_errorMessageCallbackAdapter = adoptPtr(new WebGLRenderingContextErrorMessageCallback(this));
|
| -
|
| - m_context->setContextLostCallback(m_contextLostCallbackAdapter.get());
|
| - m_context->setErrorMessageCallback(m_errorMessageCallbackAdapter.get());
|
| -
|
| - // This ensures that the context has a valid "lastFlushID" and won't be mistakenly identified as the "least recently used" context.
|
| - m_context->flush();
|
| -
|
| - activateContext(this);
|
| -}
|
| -
|
| -void WebGLRenderingContext::setupFlags()
|
| -{
|
| - ASSERT(m_context);
|
| - if (Page* p = canvas()->document().page()) {
|
| - m_synthesizedErrorsToConsole = p->settings().webGLErrorsToConsoleEnabled();
|
| -
|
| - if (!m_multisamplingObserverRegistered && m_requestedAttributes->antialias()) {
|
| - m_multisamplingAllowed = m_drawingBuffer->multisample();
|
| - p->addMultisamplingChangedObserver(this);
|
| - m_multisamplingObserverRegistered = true;
|
| - }
|
| - }
|
| -
|
| - m_isGLES2NPOTStrict = !extensionsUtil()->isExtensionEnabled("GL_OES_texture_npot");
|
| - m_isDepthStencilSupported = extensionsUtil()->isExtensionEnabled("GL_OES_packed_depth_stencil");
|
| -}
|
| -
|
| -bool WebGLRenderingContext::allowPrivilegedExtensions() const
|
| -{
|
| - if (Page* p = canvas()->document().page())
|
| - return p->settings().privilegedWebGLExtensionsEnabled();
|
| - return false;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::allowWebGLDebugRendererInfo() const
|
| -{
|
| - return true;
|
| -}
|
| -
|
| -void WebGLRenderingContext::addCompressedTextureFormat(GLenum format)
|
| -{
|
| - if (!m_compressedTextureFormats.contains(format))
|
| - m_compressedTextureFormats.append(format);
|
| -}
|
| -
|
| -void WebGLRenderingContext::removeAllCompressedTextureFormats()
|
| -{
|
| - m_compressedTextureFormats.clear();
|
| -}
|
| -
|
| -WebGLRenderingContext::~WebGLRenderingContext()
|
| -{
|
| - // Remove all references to WebGLObjects so if they are the last reference
|
| - // they will be freed before the last context is removed from the context group.
|
| - m_boundArrayBuffer = nullptr;
|
| - m_defaultVertexArrayObject = nullptr;
|
| - m_boundVertexArrayObject = nullptr;
|
| - m_vertexAttrib0Buffer = nullptr;
|
| - m_currentProgram = nullptr;
|
| - m_framebufferBinding = nullptr;
|
| - m_renderbufferBinding = nullptr;
|
| -
|
| - for (size_t i = 0; i < m_textureUnits.size(); ++i) {
|
| - m_textureUnits[i].m_texture2DBinding = nullptr;
|
| - m_textureUnits[i].m_textureCubeMapBinding = nullptr;
|
| - }
|
| -
|
| - m_blackTexture2D = nullptr;
|
| - m_blackTextureCubeMap = nullptr;
|
| -
|
| - detachAndRemoveAllObjects();
|
| -
|
| - // release all extensions
|
| - for (size_t i = 0; i < m_extensions.size(); ++i)
|
| - delete m_extensions[i];
|
| -
|
| - // Context must be removed from the group prior to the destruction of the
|
| - // WebGraphicsContext3D, otherwise shared objects may not be properly deleted.
|
| - m_contextGroup->removeContext(this);
|
| -
|
| - destroyContext();
|
| -
|
| - if (m_multisamplingObserverRegistered) {
|
| - Page* page = canvas()->document().page();
|
| - if (page)
|
| - page->removeMultisamplingChangedObserver(this);
|
| - }
|
| -
|
| - willDestroyContext(this);
|
| -}
|
| -
|
| -void WebGLRenderingContext::destroyContext()
|
| -{
|
| - m_contextLost = true;
|
| -
|
| - // The drawing buffer holds a context reference. It must also be destroyed
|
| - // in order for the context to be released.
|
| - m_drawingBuffer->releaseResources();
|
| -
|
| - m_extensionsUtil.clear();
|
| -
|
| - if (m_context) {
|
| - m_context->setContextLostCallback(0);
|
| - m_context->setErrorMessageCallback(0);
|
| - m_context.clear();
|
| - }
|
| -}
|
| -
|
| -void WebGLRenderingContext::markContextChanged()
|
| -{
|
| - if (m_framebufferBinding || isContextLost())
|
| - return;
|
| -
|
| - m_drawingBuffer->markContentsChanged();
|
| -
|
| - m_layerCleared = false;
|
| - RenderBox* renderBox = canvas()->renderBox();
|
| - if (renderBox && renderBox->hasAcceleratedCompositing()) {
|
| - m_markedCanvasDirty = true;
|
| - canvas()->clearCopiedImage();
|
| - renderBox->contentChanged(CanvasChanged);
|
| - } else {
|
| - if (!m_markedCanvasDirty) {
|
| - m_markedCanvasDirty = true;
|
| - canvas()->didDraw(FloatRect(FloatPoint(0, 0), clampedCanvasSize()));
|
| - }
|
| - }
|
| -}
|
| -
|
| -bool WebGLRenderingContext::clearIfComposited(GLbitfield mask)
|
| -{
|
| - if (isContextLost())
|
| - return false;
|
| -
|
| - if (!m_drawingBuffer->layerComposited() || m_layerCleared
|
| - || m_requestedAttributes->preserveDrawingBuffer() || (mask && m_framebufferBinding))
|
| - return false;
|
| -
|
| - RefPtr<WebGLContextAttributes> contextAttributes = getContextAttributes();
|
| -
|
| - // Determine if it's possible to combine the clear the user asked for and this clear.
|
| - bool combinedClear = mask && !m_scissorEnabled;
|
| -
|
| - m_context->disable(GL_SCISSOR_TEST);
|
| - if (combinedClear && (mask & GL_COLOR_BUFFER_BIT))
|
| - m_context->clearColor(m_colorMask[0] ? m_clearColor[0] : 0,
|
| - m_colorMask[1] ? m_clearColor[1] : 0,
|
| - m_colorMask[2] ? m_clearColor[2] : 0,
|
| - m_colorMask[3] ? m_clearColor[3] : 0);
|
| - else
|
| - m_context->clearColor(0, 0, 0, 0);
|
| - m_context->colorMask(true, true, true, true);
|
| - GLbitfield clearMask = GL_COLOR_BUFFER_BIT;
|
| - if (contextAttributes->depth()) {
|
| - if (!combinedClear || !m_depthMask || !(mask & GL_DEPTH_BUFFER_BIT))
|
| - m_context->clearDepth(1.0f);
|
| - clearMask |= GL_DEPTH_BUFFER_BIT;
|
| - m_context->depthMask(true);
|
| - }
|
| - if (contextAttributes->stencil()) {
|
| - if (combinedClear && (mask & GL_STENCIL_BUFFER_BIT))
|
| - m_context->clearStencil(m_clearStencil & m_stencilMask);
|
| - else
|
| - m_context->clearStencil(0);
|
| - clearMask |= GL_STENCIL_BUFFER_BIT;
|
| - m_context->stencilMaskSeparate(GL_FRONT, 0xFFFFFFFF);
|
| - }
|
| -
|
| - m_drawingBuffer->clearFramebuffers(clearMask);
|
| -
|
| - restoreStateAfterClear();
|
| - if (m_framebufferBinding)
|
| - m_context->bindFramebuffer(GL_FRAMEBUFFER, objectOrZero(m_framebufferBinding.get()));
|
| - m_layerCleared = true;
|
| -
|
| - return combinedClear;
|
| -}
|
| -
|
| -void WebGLRenderingContext::restoreStateAfterClear()
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| -
|
| - // Restore the state that the context set.
|
| - if (m_scissorEnabled)
|
| - m_context->enable(GL_SCISSOR_TEST);
|
| - m_context->clearColor(m_clearColor[0], m_clearColor[1],
|
| - m_clearColor[2], m_clearColor[3]);
|
| - m_context->colorMask(m_colorMask[0], m_colorMask[1],
|
| - m_colorMask[2], m_colorMask[3]);
|
| - m_context->clearDepth(m_clearDepth);
|
| - m_context->clearStencil(m_clearStencil);
|
| - m_context->stencilMaskSeparate(GL_FRONT, m_stencilMask);
|
| - m_context->depthMask(m_depthMask);
|
| -}
|
| -
|
| -void WebGLRenderingContext::markLayerComposited()
|
| -{
|
| - if (!isContextLost())
|
| - m_drawingBuffer->markLayerComposited();
|
| -}
|
| -
|
| -void WebGLRenderingContext::paintRenderingResultsToCanvas()
|
| -{
|
| - if (isContextLost()) {
|
| - canvas()->clearPresentationCopy();
|
| - return;
|
| - }
|
| -
|
| - if (canvas()->document().printing())
|
| - canvas()->clearPresentationCopy();
|
| -
|
| - // Until the canvas is written to by the application, the clear that
|
| - // happened after it was composited should be ignored by the compositor.
|
| - if (m_drawingBuffer->layerComposited() && !m_requestedAttributes->preserveDrawingBuffer()) {
|
| - m_drawingBuffer->paintCompositedResultsToCanvas(canvas()->buffer());
|
| -
|
| - canvas()->makePresentationCopy();
|
| - } else
|
| - canvas()->clearPresentationCopy();
|
| - clearIfComposited();
|
| -
|
| - if (!m_markedCanvasDirty && !m_layerCleared)
|
| - return;
|
| -
|
| - canvas()->clearCopiedImage();
|
| - m_markedCanvasDirty = false;
|
| -
|
| - m_drawingBuffer->commit();
|
| - if (!(canvas()->buffer())->copyRenderingResultsFromDrawingBuffer(m_drawingBuffer.get())) {
|
| - canvas()->ensureUnacceleratedImageBuffer();
|
| - if (canvas()->hasImageBuffer())
|
| - m_drawingBuffer->paintRenderingResultsToCanvas(canvas()->buffer());
|
| - }
|
| -
|
| - if (m_framebufferBinding)
|
| - m_context->bindFramebuffer(GL_FRAMEBUFFER, objectOrZero(m_framebufferBinding.get()));
|
| - else
|
| - m_drawingBuffer->bind();
|
| -}
|
| -
|
| -PassRefPtr<ImageData> WebGLRenderingContext::paintRenderingResultsToImageData()
|
| -{
|
| - if (isContextLost())
|
| - return nullptr;
|
| -
|
| - clearIfComposited();
|
| - m_drawingBuffer->commit();
|
| - int width, height;
|
| - RefPtr<Uint8ClampedArray> imageDataPixels = m_drawingBuffer->paintRenderingResultsToImageData(width, height);
|
| - if (!imageDataPixels)
|
| - return nullptr;
|
| -
|
| - if (m_framebufferBinding)
|
| - m_context->bindFramebuffer(GL_FRAMEBUFFER, objectOrZero(m_framebufferBinding.get()));
|
| - else
|
| - m_drawingBuffer->bind();
|
| -
|
| - return ImageData::create(IntSize(width, height), imageDataPixels);
|
| -}
|
| -
|
| -void WebGLRenderingContext::reshape(int width, int height)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| -
|
| - // This is an approximation because at WebGLRenderingContext level we don't
|
| - // know if the underlying FBO uses textures or renderbuffers.
|
| - GLint maxSize = std::min(m_maxTextureSize, m_maxRenderbufferSize);
|
| - // Limit drawing buffer size to 4k to avoid memory exhaustion.
|
| - const int sizeUpperLimit = 4096;
|
| - maxSize = std::min(maxSize, sizeUpperLimit);
|
| - GLint maxWidth = std::min(maxSize, m_maxViewportDims[0]);
|
| - GLint maxHeight = std::min(maxSize, m_maxViewportDims[1]);
|
| - width = clamp(width, 1, maxWidth);
|
| - height = clamp(height, 1, maxHeight);
|
| -
|
| - if (m_needsUpdate) {
|
| - RenderBox* renderBox = canvas()->renderBox();
|
| - if (renderBox && renderBox->hasAcceleratedCompositing())
|
| - renderBox->contentChanged(CanvasChanged);
|
| - m_needsUpdate = false;
|
| - }
|
| -
|
| - // We don't have to mark the canvas as dirty, since the newly created image buffer will also start off
|
| - // clear (and this matches what reshape will do).
|
| - m_drawingBuffer->reset(IntSize(width, height));
|
| - restoreStateAfterClear();
|
| -
|
| - m_context->bindTexture(GL_TEXTURE_2D, objectOrZero(m_textureUnits[m_activeTextureUnit].m_texture2DBinding.get()));
|
| - m_context->bindRenderbuffer(GL_RENDERBUFFER, objectOrZero(m_renderbufferBinding.get()));
|
| - if (m_framebufferBinding)
|
| - m_context->bindFramebuffer(GL_FRAMEBUFFER, objectOrZero(m_framebufferBinding.get()));
|
| -}
|
| -
|
| -int WebGLRenderingContext::drawingBufferWidth() const
|
| -{
|
| - return m_drawingBuffer->size().width();
|
| -}
|
| -
|
| -int WebGLRenderingContext::drawingBufferHeight() const
|
| -{
|
| - return m_drawingBuffer->size().height();
|
| -}
|
| -
|
| -unsigned WebGLRenderingContext::sizeInBytes(GLenum type)
|
| -{
|
| - switch (type) {
|
| - case GL_BYTE:
|
| - return sizeof(GLbyte);
|
| - case GL_UNSIGNED_BYTE:
|
| - return sizeof(GLubyte);
|
| - case GL_SHORT:
|
| - return sizeof(GLshort);
|
| - case GL_UNSIGNED_SHORT:
|
| - return sizeof(GLushort);
|
| - case GL_INT:
|
| - return sizeof(GLint);
|
| - case GL_UNSIGNED_INT:
|
| - return sizeof(GLuint);
|
| - case GL_FLOAT:
|
| - return sizeof(GLfloat);
|
| - }
|
| - ASSERT_NOT_REACHED();
|
| - return 0;
|
| -}
|
| -
|
| -void WebGLRenderingContext::activeTexture(GLenum texture)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (texture - GL_TEXTURE0 >= m_textureUnits.size()) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "activeTexture", "texture unit out of range");
|
| - return;
|
| - }
|
| - m_activeTextureUnit = texture - GL_TEXTURE0;
|
| - m_context->activeTexture(texture);
|
| -
|
| - m_drawingBuffer->setActiveTextureUnit(texture);
|
| -
|
| -}
|
| -
|
| -void WebGLRenderingContext::attachShader(WebGLProgram* program, WebGLShader* shader)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("attachShader", program) || !validateWebGLObject("attachShader", shader))
|
| - return;
|
| - if (!program->attachShader(shader)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "attachShader", "shader attachment already has shader");
|
| - return;
|
| - }
|
| - m_context->attachShader(objectOrZero(program), objectOrZero(shader));
|
| - shader->onAttached();
|
| -}
|
| -
|
| -void WebGLRenderingContext::bindAttribLocation(WebGLProgram* program, GLuint index, const String& name)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("bindAttribLocation", program))
|
| - return;
|
| - if (!validateLocationLength("bindAttribLocation", name))
|
| - return;
|
| - if (!validateString("bindAttribLocation", name))
|
| - return;
|
| - if (isPrefixReserved(name)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "bindAttribLocation", "reserved prefix");
|
| - return;
|
| - }
|
| - if (index >= m_maxVertexAttribs) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "bindAttribLocation", "index out of range");
|
| - return;
|
| - }
|
| - m_context->bindAttribLocation(objectOrZero(program), index, name.utf8().data());
|
| -}
|
| -
|
| -bool WebGLRenderingContext::checkObjectToBeBound(const char* functionName, WebGLObject* object, bool& deleted)
|
| -{
|
| - deleted = false;
|
| - if (isContextLost())
|
| - return false;
|
| - if (object) {
|
| - if (!object->validate(contextGroup(), this)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "object not from this context");
|
| - return false;
|
| - }
|
| - deleted = !object->object();
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -void WebGLRenderingContext::bindBuffer(GLenum target, WebGLBuffer* buffer)
|
| -{
|
| - bool deleted;
|
| - if (!checkObjectToBeBound("bindBuffer", buffer, deleted))
|
| - return;
|
| - if (deleted)
|
| - buffer = 0;
|
| - if (buffer && buffer->getTarget() && buffer->getTarget() != target) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "bindBuffer", "buffers can not be used with multiple targets");
|
| - return;
|
| - }
|
| - if (target == GL_ARRAY_BUFFER)
|
| - m_boundArrayBuffer = buffer;
|
| - else if (target == GL_ELEMENT_ARRAY_BUFFER)
|
| - m_boundVertexArrayObject->setElementArrayBuffer(buffer);
|
| - else {
|
| - synthesizeGLError(GL_INVALID_ENUM, "bindBuffer", "invalid target");
|
| - return;
|
| - }
|
| -
|
| - m_context->bindBuffer(target, objectOrZero(buffer));
|
| - if (buffer)
|
| - buffer->setTarget(target);
|
| -}
|
| -
|
| -void WebGLRenderingContext::bindFramebuffer(GLenum target, WebGLFramebuffer* buffer)
|
| -{
|
| - bool deleted;
|
| - if (!checkObjectToBeBound("bindFramebuffer", buffer, deleted))
|
| - return;
|
| - if (deleted)
|
| - buffer = 0;
|
| - if (target != GL_FRAMEBUFFER) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "bindFramebuffer", "invalid target");
|
| - return;
|
| - }
|
| - m_framebufferBinding = buffer;
|
| - m_drawingBuffer->setFramebufferBinding(objectOrZero(m_framebufferBinding.get()));
|
| - if (!m_framebufferBinding) {
|
| - // Instead of binding fb 0, bind the drawing buffer.
|
| - m_drawingBuffer->bind();
|
| - } else
|
| - m_context->bindFramebuffer(target, objectOrZero(buffer));
|
| - if (buffer)
|
| - buffer->setHasEverBeenBound();
|
| - applyStencilTest();
|
| -}
|
| -
|
| -void WebGLRenderingContext::bindRenderbuffer(GLenum target, WebGLRenderbuffer* renderBuffer)
|
| -{
|
| - bool deleted;
|
| - if (!checkObjectToBeBound("bindRenderbuffer", renderBuffer, deleted))
|
| - return;
|
| - if (deleted)
|
| - renderBuffer = 0;
|
| - if (target != GL_RENDERBUFFER) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "bindRenderbuffer", "invalid target");
|
| - return;
|
| - }
|
| - m_renderbufferBinding = renderBuffer;
|
| - m_context->bindRenderbuffer(target, objectOrZero(renderBuffer));
|
| - if (renderBuffer)
|
| - renderBuffer->setHasEverBeenBound();
|
| -}
|
| -
|
| -void WebGLRenderingContext::bindTexture(GLenum target, WebGLTexture* texture)
|
| -{
|
| - bool deleted;
|
| - if (!checkObjectToBeBound("bindTexture", texture, deleted))
|
| - return;
|
| - if (deleted)
|
| - texture = 0;
|
| - if (texture && texture->getTarget() && texture->getTarget() != target) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "bindTexture", "textures can not be used with multiple targets");
|
| - return;
|
| - }
|
| - GLint maxLevel = 0;
|
| - if (target == GL_TEXTURE_2D) {
|
| - m_textureUnits[m_activeTextureUnit].m_texture2DBinding = texture;
|
| - maxLevel = m_maxTextureLevel;
|
| -
|
| - if (!m_activeTextureUnit)
|
| - m_drawingBuffer->setTexture2DBinding(objectOrZero(texture));
|
| -
|
| - } else if (target == GL_TEXTURE_CUBE_MAP) {
|
| - m_textureUnits[m_activeTextureUnit].m_textureCubeMapBinding = texture;
|
| - maxLevel = m_maxCubeMapTextureLevel;
|
| - } else {
|
| - synthesizeGLError(GL_INVALID_ENUM, "bindTexture", "invalid target");
|
| - return;
|
| - }
|
| -
|
| - m_context->bindTexture(target, objectOrZero(texture));
|
| - if (texture) {
|
| - texture->setTarget(target, maxLevel);
|
| - m_onePlusMaxNonDefaultTextureUnit = max(m_activeTextureUnit + 1, m_onePlusMaxNonDefaultTextureUnit);
|
| - } else {
|
| - // If the disabled index is the current maximum, trace backwards to find the new max enabled texture index
|
| - if (m_onePlusMaxNonDefaultTextureUnit == m_activeTextureUnit + 1) {
|
| - findNewMaxNonDefaultTextureUnit();
|
| - }
|
| - }
|
| -
|
| - // Note: previously we used to automatically set the TEXTURE_WRAP_R
|
| - // repeat mode to CLAMP_TO_EDGE for cube map textures, because OpenGL
|
| - // ES 2.0 doesn't expose this flag (a bug in the specification) and
|
| - // otherwise the application has no control over the seams in this
|
| - // dimension. However, it appears that supporting this properly on all
|
| - // platforms is fairly involved (will require a HashMap from texture ID
|
| - // in all ports), and we have not had any complaints, so the logic has
|
| - // been removed.
|
| -
|
| -}
|
| -
|
| -void WebGLRenderingContext::blendColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_context->blendColor(red, green, blue, alpha);
|
| -}
|
| -
|
| -void WebGLRenderingContext::blendEquation(GLenum mode)
|
| -{
|
| - if (isContextLost() || !validateBlendEquation("blendEquation", mode))
|
| - return;
|
| - m_context->blendEquation(mode);
|
| -}
|
| -
|
| -void WebGLRenderingContext::blendEquationSeparate(GLenum modeRGB, GLenum modeAlpha)
|
| -{
|
| - if (isContextLost() || !validateBlendEquation("blendEquationSeparate", modeRGB) || !validateBlendEquation("blendEquationSeparate", modeAlpha))
|
| - return;
|
| - m_context->blendEquationSeparate(modeRGB, modeAlpha);
|
| -}
|
| -
|
| -
|
| -void WebGLRenderingContext::blendFunc(GLenum sfactor, GLenum dfactor)
|
| -{
|
| - if (isContextLost() || !validateBlendFuncFactors("blendFunc", sfactor, dfactor))
|
| - return;
|
| - m_context->blendFunc(sfactor, dfactor);
|
| -}
|
| -
|
| -void WebGLRenderingContext::blendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha)
|
| -{
|
| - // Note: Alpha does not have the same restrictions as RGB.
|
| - if (isContextLost() || !validateBlendFuncFactors("blendFuncSeparate", srcRGB, dstRGB))
|
| - return;
|
| - m_context->blendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
|
| -}
|
| -
|
| -void WebGLRenderingContext::bufferData(GLenum target, long long size, GLenum usage)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - WebGLBuffer* buffer = validateBufferDataParameters("bufferData", target, usage);
|
| - if (!buffer)
|
| - return;
|
| - if (size < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "bufferData", "size < 0");
|
| - return;
|
| - }
|
| - if (!size) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "bufferData", "size == 0");
|
| - return;
|
| - }
|
| -
|
| - m_context->bufferData(target, static_cast<GLsizeiptr>(size), 0, usage);
|
| -}
|
| -
|
| -void WebGLRenderingContext::bufferData(GLenum target, ArrayBuffer* data, GLenum usage)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - WebGLBuffer* buffer = validateBufferDataParameters("bufferData", target, usage);
|
| - if (!buffer)
|
| - return;
|
| - if (!data) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "bufferData", "no data");
|
| - return;
|
| - }
|
| - m_context->bufferData(target, data->byteLength(), data->data(), usage);
|
| -}
|
| -
|
| -void WebGLRenderingContext::bufferData(GLenum target, ArrayBufferView* data, GLenum usage)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - WebGLBuffer* buffer = validateBufferDataParameters("bufferData", target, usage);
|
| - if (!buffer)
|
| - return;
|
| - if (!data) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "bufferData", "no data");
|
| - return;
|
| - }
|
| -
|
| - m_context->bufferData(target, data->byteLength(), data->baseAddress(), usage);
|
| -}
|
| -
|
| -void WebGLRenderingContext::bufferSubData(GLenum target, long long offset, ArrayBuffer* data)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - WebGLBuffer* buffer = validateBufferDataParameters("bufferSubData", target, GL_STATIC_DRAW);
|
| - if (!buffer)
|
| - return;
|
| - if (offset < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "bufferSubData", "offset < 0");
|
| - return;
|
| - }
|
| - if (!data)
|
| - return;
|
| -
|
| - m_context->bufferSubData(target, static_cast<GLintptr>(offset), data->byteLength(), data->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::bufferSubData(GLenum target, long long offset, ArrayBufferView* data)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - WebGLBuffer* buffer = validateBufferDataParameters("bufferSubData", target, GL_STATIC_DRAW);
|
| - if (!buffer)
|
| - return;
|
| - if (offset < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "bufferSubData", "offset < 0");
|
| - return;
|
| - }
|
| - if (!data)
|
| - return;
|
| -
|
| - m_context->bufferSubData(target, static_cast<GLintptr>(offset), data->byteLength(), data->baseAddress());
|
| -}
|
| -
|
| -GLenum WebGLRenderingContext::checkFramebufferStatus(GLenum target)
|
| -{
|
| - if (isContextLost())
|
| - return GL_FRAMEBUFFER_UNSUPPORTED;
|
| - if (target != GL_FRAMEBUFFER) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "checkFramebufferStatus", "invalid target");
|
| - return 0;
|
| - }
|
| - if (!m_framebufferBinding || !m_framebufferBinding->object())
|
| - return GL_FRAMEBUFFER_COMPLETE;
|
| - const char* reason = "framebuffer incomplete";
|
| - GLenum result = m_framebufferBinding->checkStatus(&reason);
|
| - if (result != GL_FRAMEBUFFER_COMPLETE) {
|
| - emitGLWarning("checkFramebufferStatus", reason);
|
| - return result;
|
| - }
|
| - result = m_context->checkFramebufferStatus(target);
|
| - return result;
|
| -}
|
| -
|
| -void WebGLRenderingContext::clear(GLbitfield mask)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (mask & ~(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "clear", "invalid mask");
|
| - return;
|
| - }
|
| - const char* reason = "framebuffer incomplete";
|
| - if (m_framebufferBinding && !m_framebufferBinding->onAccess(m_context.get(), &reason)) {
|
| - synthesizeGLError(GL_INVALID_FRAMEBUFFER_OPERATION, "clear", reason);
|
| - return;
|
| - }
|
| - if (!clearIfComposited(mask))
|
| - m_context->clear(mask);
|
| - markContextChanged();
|
| -}
|
| -
|
| -void WebGLRenderingContext::clearColor(GLfloat r, GLfloat g, GLfloat b, GLfloat a)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (std::isnan(r))
|
| - r = 0;
|
| - if (std::isnan(g))
|
| - g = 0;
|
| - if (std::isnan(b))
|
| - b = 0;
|
| - if (std::isnan(a))
|
| - a = 1;
|
| - m_clearColor[0] = r;
|
| - m_clearColor[1] = g;
|
| - m_clearColor[2] = b;
|
| - m_clearColor[3] = a;
|
| - m_context->clearColor(r, g, b, a);
|
| -}
|
| -
|
| -void WebGLRenderingContext::clearDepth(GLfloat depth)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_clearDepth = depth;
|
| - m_context->clearDepth(depth);
|
| -}
|
| -
|
| -void WebGLRenderingContext::clearStencil(GLint s)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_clearStencil = s;
|
| - m_context->clearStencil(s);
|
| -}
|
| -
|
| -void WebGLRenderingContext::colorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_colorMask[0] = red;
|
| - m_colorMask[1] = green;
|
| - m_colorMask[2] = blue;
|
| - m_colorMask[3] = alpha;
|
| - m_context->colorMask(red, green, blue, alpha);
|
| -}
|
| -
|
| -void WebGLRenderingContext::compileShader(WebGLShader* shader)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("compileShader", shader))
|
| - return;
|
| - m_context->compileShader(objectOrZero(shader));
|
| -}
|
| -
|
| -void WebGLRenderingContext::compressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, ArrayBufferView* data)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (!validateTexFuncLevel("compressedTexImage2D", target, level))
|
| - return;
|
| -
|
| - if (!validateCompressedTexFormat(internalformat)) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "compressedTexImage2D", "invalid internalformat");
|
| - return;
|
| - }
|
| - if (border) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "compressedTexImage2D", "border not 0");
|
| - return;
|
| - }
|
| - if (!validateCompressedTexDimensions("compressedTexImage2D", NotTexSubImage2D, target, level, width, height, internalformat))
|
| - return;
|
| - if (!validateCompressedTexFuncData("compressedTexImage2D", width, height, internalformat, data))
|
| - return;
|
| -
|
| - WebGLTexture* tex = validateTextureBinding("compressedTexImage2D", target, true);
|
| - if (!tex)
|
| - return;
|
| - if (!isGLES2NPOTStrict()) {
|
| - if (level && WebGLTexture::isNPOT(width, height)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "compressedTexImage2D", "level > 0 not power of 2");
|
| - return;
|
| - }
|
| - }
|
| - m_context->compressedTexImage2D(target, level, internalformat, width, height,
|
| - border, data->byteLength(), data->baseAddress());
|
| - tex->setLevelInfo(target, level, internalformat, width, height, GL_UNSIGNED_BYTE);
|
| -}
|
| -
|
| -void WebGLRenderingContext::compressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, ArrayBufferView* data)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (!validateTexFuncLevel("compressedTexSubImage2D", target, level))
|
| - return;
|
| - if (!validateCompressedTexFormat(format)) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "compressedTexSubImage2D", "invalid format");
|
| - return;
|
| - }
|
| - if (!validateCompressedTexFuncData("compressedTexSubImage2D", width, height, format, data))
|
| - return;
|
| -
|
| - WebGLTexture* tex = validateTextureBinding("compressedTexSubImage2D", target, true);
|
| - if (!tex)
|
| - return;
|
| -
|
| - if (format != tex->getInternalFormat(target, level)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "compressedTexSubImage2D", "format does not match texture format");
|
| - return;
|
| - }
|
| -
|
| - if (!validateCompressedTexSubDimensions("compressedTexSubImage2D", target, level, xoffset, yoffset, width, height, format, tex))
|
| - return;
|
| -
|
| - m_context->compressedTexSubImage2D(target, level, xoffset, yoffset,
|
| - width, height, format, data->byteLength(), data->baseAddress());
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateSettableTexFormat(const char* functionName, GLenum format)
|
| -{
|
| - if (WebGLImageConversion::getClearBitsByFormat(format) & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "format can not be set, only rendered to");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -void WebGLRenderingContext::copyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (!validateTexFuncParameters("copyTexImage2D", NotTexSubImage2D, target, level, internalformat, width, height, border, internalformat, GL_UNSIGNED_BYTE))
|
| - return;
|
| - if (!validateSettableTexFormat("copyTexImage2D", internalformat))
|
| - return;
|
| - WebGLTexture* tex = validateTextureBinding("copyTexImage2D", target, true);
|
| - if (!tex)
|
| - return;
|
| - if (!isTexInternalFormatColorBufferCombinationValid(internalformat, boundFramebufferColorFormat())) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "copyTexImage2D", "framebuffer is incompatible format");
|
| - return;
|
| - }
|
| - if (!isGLES2NPOTStrict() && level && WebGLTexture::isNPOT(width, height)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "copyTexImage2D", "level > 0 not power of 2");
|
| - return;
|
| - }
|
| - const char* reason = "framebuffer incomplete";
|
| - if (m_framebufferBinding && !m_framebufferBinding->onAccess(m_context.get(), &reason)) {
|
| - synthesizeGLError(GL_INVALID_FRAMEBUFFER_OPERATION, "copyTexImage2D", reason);
|
| - return;
|
| - }
|
| - clearIfComposited();
|
| - ScopedDrawingBufferBinder binder(m_drawingBuffer.get(), m_framebufferBinding.get());
|
| - m_context->copyTexImage2D(target, level, internalformat, x, y, width, height, border);
|
| - // FIXME: if the framebuffer is not complete, none of the below should be executed.
|
| - tex->setLevelInfo(target, level, internalformat, width, height, GL_UNSIGNED_BYTE);
|
| -}
|
| -
|
| -void WebGLRenderingContext::copyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (!validateTexFuncLevel("copyTexSubImage2D", target, level))
|
| - return;
|
| - WebGLTexture* tex = validateTextureBinding("copyTexSubImage2D", target, true);
|
| - if (!tex)
|
| - return;
|
| - if (!validateSize("copyTexSubImage2D", xoffset, yoffset) || !validateSize("copyTexSubImage2D", width, height))
|
| - return;
|
| - // Before checking if it is in the range, check if overflow happens first.
|
| - Checked<GLint, RecordOverflow> maxX = xoffset;
|
| - maxX += width;
|
| - Checked<GLint, RecordOverflow> maxY = yoffset;
|
| - maxY += height;
|
| - if (maxX.hasOverflowed() || maxY.hasOverflowed()) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "copyTexSubImage2D", "bad dimensions");
|
| - return;
|
| - }
|
| - if (maxX.unsafeGet() > tex->getWidth(target, level) || maxY.unsafeGet() > tex->getHeight(target, level)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "copyTexSubImage2D", "rectangle out of range");
|
| - return;
|
| - }
|
| - GLenum internalformat = tex->getInternalFormat(target, level);
|
| - if (!validateSettableTexFormat("copyTexSubImage2D", internalformat))
|
| - return;
|
| - if (!isTexInternalFormatColorBufferCombinationValid(internalformat, boundFramebufferColorFormat())) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "copyTexSubImage2D", "framebuffer is incompatible format");
|
| - return;
|
| - }
|
| - const char* reason = "framebuffer incomplete";
|
| - if (m_framebufferBinding && !m_framebufferBinding->onAccess(m_context.get(), &reason)) {
|
| - synthesizeGLError(GL_INVALID_FRAMEBUFFER_OPERATION, "copyTexSubImage2D", reason);
|
| - return;
|
| - }
|
| - clearIfComposited();
|
| - ScopedDrawingBufferBinder binder(m_drawingBuffer.get(), m_framebufferBinding.get());
|
| - m_context->copyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
|
| -}
|
| -
|
| -PassRefPtr<WebGLBuffer> WebGLRenderingContext::createBuffer()
|
| -{
|
| - if (isContextLost())
|
| - return nullptr;
|
| - RefPtr<WebGLBuffer> o = WebGLBuffer::create(this);
|
| - addSharedObject(o.get());
|
| - return o;
|
| -}
|
| -
|
| -PassRefPtr<WebGLFramebuffer> WebGLRenderingContext::createFramebuffer()
|
| -{
|
| - if (isContextLost())
|
| - return nullptr;
|
| - RefPtr<WebGLFramebuffer> o = WebGLFramebuffer::create(this);
|
| - addContextObject(o.get());
|
| - return o;
|
| -}
|
| -
|
| -PassRefPtr<WebGLTexture> WebGLRenderingContext::createTexture()
|
| -{
|
| - if (isContextLost())
|
| - return nullptr;
|
| - RefPtr<WebGLTexture> o = WebGLTexture::create(this);
|
| - addSharedObject(o.get());
|
| - return o;
|
| -}
|
| -
|
| -PassRefPtr<WebGLProgram> WebGLRenderingContext::createProgram()
|
| -{
|
| - if (isContextLost())
|
| - return nullptr;
|
| - RefPtr<WebGLProgram> o = WebGLProgram::create(this);
|
| - addSharedObject(o.get());
|
| - return o;
|
| -}
|
| -
|
| -PassRefPtr<WebGLRenderbuffer> WebGLRenderingContext::createRenderbuffer()
|
| -{
|
| - if (isContextLost())
|
| - return nullptr;
|
| - RefPtr<WebGLRenderbuffer> o = WebGLRenderbuffer::create(this);
|
| - addSharedObject(o.get());
|
| - return o;
|
| -}
|
| -
|
| -WebGLRenderbuffer* WebGLRenderingContext::ensureEmulatedStencilBuffer(GLenum target, WebGLRenderbuffer* renderbuffer)
|
| -{
|
| - if (isContextLost())
|
| - return 0;
|
| - if (!renderbuffer->emulatedStencilBuffer()) {
|
| - renderbuffer->setEmulatedStencilBuffer(createRenderbuffer());
|
| - m_context->bindRenderbuffer(target, objectOrZero(renderbuffer->emulatedStencilBuffer()));
|
| - m_context->bindRenderbuffer(target, objectOrZero(m_renderbufferBinding.get()));
|
| - }
|
| - return renderbuffer->emulatedStencilBuffer();
|
| -}
|
| -
|
| -PassRefPtr<WebGLShader> WebGLRenderingContext::createShader(GLenum type)
|
| -{
|
| - if (isContextLost())
|
| - return nullptr;
|
| - if (type != GL_VERTEX_SHADER && type != GL_FRAGMENT_SHADER) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "createShader", "invalid shader type");
|
| - return nullptr;
|
| - }
|
| -
|
| - RefPtr<WebGLShader> o = WebGLShader::create(this, type);
|
| - addSharedObject(o.get());
|
| - return o;
|
| -}
|
| -
|
| -void WebGLRenderingContext::cullFace(GLenum mode)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - switch (mode) {
|
| - case GL_FRONT_AND_BACK:
|
| - case GL_FRONT:
|
| - case GL_BACK:
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "cullFace", "invalid mode");
|
| - return;
|
| - }
|
| - m_context->cullFace(mode);
|
| -}
|
| -
|
| -bool WebGLRenderingContext::deleteObject(WebGLObject* object)
|
| -{
|
| - if (isContextLost() || !object)
|
| - return false;
|
| - if (!object->validate(contextGroup(), this)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "delete", "object does not belong to this context");
|
| - return false;
|
| - }
|
| - if (object->object()) {
|
| - // We need to pass in context here because we want
|
| - // things in this context unbound.
|
| - object->deleteObject(m_context.get());
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -void WebGLRenderingContext::deleteBuffer(WebGLBuffer* buffer)
|
| -{
|
| - if (!deleteObject(buffer))
|
| - return;
|
| - if (m_boundArrayBuffer == buffer)
|
| - m_boundArrayBuffer = nullptr;
|
| -
|
| - m_boundVertexArrayObject->unbindBuffer(buffer);
|
| -}
|
| -
|
| -void WebGLRenderingContext::deleteFramebuffer(WebGLFramebuffer* framebuffer)
|
| -{
|
| - if (!deleteObject(framebuffer))
|
| - return;
|
| - if (framebuffer == m_framebufferBinding) {
|
| - m_framebufferBinding = nullptr;
|
| - m_drawingBuffer->setFramebufferBinding(0);
|
| - // Have to call bindFramebuffer here to bind back to internal fbo.
|
| - m_drawingBuffer->bind();
|
| - }
|
| -}
|
| -
|
| -void WebGLRenderingContext::deleteProgram(WebGLProgram* program)
|
| -{
|
| - deleteObject(program);
|
| - // We don't reset m_currentProgram to 0 here because the deletion of the
|
| - // current program is delayed.
|
| -}
|
| -
|
| -void WebGLRenderingContext::deleteRenderbuffer(WebGLRenderbuffer* renderbuffer)
|
| -{
|
| - if (!deleteObject(renderbuffer))
|
| - return;
|
| - if (renderbuffer == m_renderbufferBinding)
|
| - m_renderbufferBinding = nullptr;
|
| - if (m_framebufferBinding)
|
| - m_framebufferBinding->removeAttachmentFromBoundFramebuffer(renderbuffer);
|
| -}
|
| -
|
| -void WebGLRenderingContext::deleteShader(WebGLShader* shader)
|
| -{
|
| - deleteObject(shader);
|
| -}
|
| -
|
| -void WebGLRenderingContext::deleteTexture(WebGLTexture* texture)
|
| -{
|
| - if (!deleteObject(texture))
|
| - return;
|
| -
|
| - int maxBoundTextureIndex = -1;
|
| - for (size_t i = 0; i < m_onePlusMaxNonDefaultTextureUnit; ++i) {
|
| - if (texture == m_textureUnits[i].m_texture2DBinding) {
|
| - m_textureUnits[i].m_texture2DBinding = nullptr;
|
| - maxBoundTextureIndex = i;
|
| - if (!i)
|
| - m_drawingBuffer->setTexture2DBinding(0);
|
| - }
|
| - if (texture == m_textureUnits[i].m_textureCubeMapBinding) {
|
| - m_textureUnits[i].m_textureCubeMapBinding = nullptr;
|
| - maxBoundTextureIndex = i;
|
| - }
|
| - }
|
| - if (m_framebufferBinding)
|
| - m_framebufferBinding->removeAttachmentFromBoundFramebuffer(texture);
|
| -
|
| - // If the deleted was bound to the the current maximum index, trace backwards to find the new max texture index
|
| - if (m_onePlusMaxNonDefaultTextureUnit == static_cast<unsigned long>(maxBoundTextureIndex + 1)) {
|
| - findNewMaxNonDefaultTextureUnit();
|
| - }
|
| -}
|
| -
|
| -void WebGLRenderingContext::depthFunc(GLenum func)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (!validateStencilOrDepthFunc("depthFunc", func))
|
| - return;
|
| - m_context->depthFunc(func);
|
| -}
|
| -
|
| -void WebGLRenderingContext::depthMask(GLboolean flag)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_depthMask = flag;
|
| - m_context->depthMask(flag);
|
| -}
|
| -
|
| -void WebGLRenderingContext::depthRange(GLfloat zNear, GLfloat zFar)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (zNear > zFar) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "depthRange", "zNear > zFar");
|
| - return;
|
| - }
|
| - m_context->depthRange(zNear, zFar);
|
| -}
|
| -
|
| -void WebGLRenderingContext::detachShader(WebGLProgram* program, WebGLShader* shader)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("detachShader", program) || !validateWebGLObject("detachShader", shader))
|
| - return;
|
| - if (!program->detachShader(shader)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "detachShader", "shader not attached");
|
| - return;
|
| - }
|
| - m_context->detachShader(objectOrZero(program), objectOrZero(shader));
|
| - shader->onDetached(m_context.get());
|
| -}
|
| -
|
| -void WebGLRenderingContext::disable(GLenum cap)
|
| -{
|
| - if (isContextLost() || !validateCapability("disable", cap))
|
| - return;
|
| - if (cap == GL_STENCIL_TEST) {
|
| - m_stencilEnabled = false;
|
| - applyStencilTest();
|
| - return;
|
| - }
|
| - if (cap == GL_SCISSOR_TEST) {
|
| - m_scissorEnabled = false;
|
| - m_drawingBuffer->setScissorEnabled(m_scissorEnabled);
|
| - }
|
| - m_context->disable(cap);
|
| -}
|
| -
|
| -void WebGLRenderingContext::disableVertexAttribArray(GLuint index)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (index >= m_maxVertexAttribs) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "disableVertexAttribArray", "index out of range");
|
| - return;
|
| - }
|
| -
|
| - WebGLVertexArrayObjectOES::VertexAttribState& state = m_boundVertexArrayObject->getVertexAttribState(index);
|
| - state.enabled = false;
|
| -
|
| - // If the disabled index is the current maximum, trace backwards to find the new max enabled attrib index
|
| - if (m_onePlusMaxEnabledAttribIndex == index + 1) {
|
| - findNewMaxEnabledAttribIndex();
|
| - }
|
| -
|
| - m_context->disableVertexAttribArray(index);
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateRenderingState(const char* functionName)
|
| -{
|
| - if (!m_currentProgram) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "no valid shader program in use");
|
| - return false;
|
| - }
|
| -
|
| - // Look in each enabled vertex attrib and check if they've been bound to a buffer.
|
| - for (unsigned i = 0; i < m_onePlusMaxEnabledAttribIndex; ++i) {
|
| - const WebGLVertexArrayObjectOES::VertexAttribState& state = m_boundVertexArrayObject->getVertexAttribState(i);
|
| - if (state.enabled
|
| - && (!state.bufferBinding || !state.bufferBinding->object())) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, String::format("attribute %d is enabled but has no buffer bound", i).utf8().data());
|
| - return false;
|
| - }
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateWebGLObject(const char* functionName, WebGLObject* object)
|
| -{
|
| - if (!object || !object->object()) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no object or object deleted");
|
| - return false;
|
| - }
|
| - if (!object->validate(contextGroup(), this)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "object does not belong to this context");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -void WebGLRenderingContext::drawArrays(GLenum mode, GLint first, GLsizei count)
|
| -{
|
| - if (!validateDrawArrays("drawArrays", mode, first, count))
|
| - return;
|
| -
|
| - clearIfComposited();
|
| -
|
| - handleTextureCompleteness("drawArrays", true);
|
| - m_context->drawArrays(mode, first, count);
|
| - handleTextureCompleteness("drawArrays", false);
|
| - markContextChanged();
|
| -}
|
| -
|
| -void WebGLRenderingContext::drawElements(GLenum mode, GLsizei count, GLenum type, long long offset)
|
| -{
|
| - if (!validateDrawElements("drawElements", mode, count, type, offset))
|
| - return;
|
| -
|
| - clearIfComposited();
|
| -
|
| - handleTextureCompleteness("drawElements", true);
|
| - m_context->drawElements(mode, count, type, static_cast<GLintptr>(offset));
|
| - handleTextureCompleteness("drawElements", false);
|
| - markContextChanged();
|
| -}
|
| -
|
| -void WebGLRenderingContext::drawArraysInstancedANGLE(GLenum mode, GLint first, GLsizei count, GLsizei primcount)
|
| -{
|
| - if (!validateDrawArrays("drawArraysInstancedANGLE", mode, first, count))
|
| - return;
|
| -
|
| - if (!validateDrawInstanced("drawArraysInstancedANGLE", primcount))
|
| - return;
|
| -
|
| - clearIfComposited();
|
| -
|
| - handleTextureCompleteness("drawArraysInstancedANGLE", true);
|
| - m_context->drawArraysInstancedANGLE(mode, first, count, primcount);
|
| - handleTextureCompleteness("drawArraysInstancedANGLE", false);
|
| - markContextChanged();
|
| -}
|
| -
|
| -void WebGLRenderingContext::drawElementsInstancedANGLE(GLenum mode, GLsizei count, GLenum type, GLintptr offset, GLsizei primcount)
|
| -{
|
| - if (!validateDrawElements("drawElementsInstancedANGLE", mode, count, type, offset))
|
| - return;
|
| -
|
| - if (!validateDrawInstanced("drawElementsInstancedANGLE", primcount))
|
| - return;
|
| -
|
| - clearIfComposited();
|
| -
|
| - handleTextureCompleteness("drawElementsInstancedANGLE", true);
|
| - m_context->drawElementsInstancedANGLE(mode, count, type, static_cast<GLintptr>(offset), primcount);
|
| - handleTextureCompleteness("drawElementsInstancedANGLE", false);
|
| - markContextChanged();
|
| -}
|
| -
|
| -void WebGLRenderingContext::enable(GLenum cap)
|
| -{
|
| - if (isContextLost() || !validateCapability("enable", cap))
|
| - return;
|
| - if (cap == GL_STENCIL_TEST) {
|
| - m_stencilEnabled = true;
|
| - applyStencilTest();
|
| - return;
|
| - }
|
| - if (cap == GL_SCISSOR_TEST) {
|
| - m_scissorEnabled = true;
|
| - m_drawingBuffer->setScissorEnabled(m_scissorEnabled);
|
| - }
|
| - m_context->enable(cap);
|
| -}
|
| -
|
| -void WebGLRenderingContext::enableVertexAttribArray(GLuint index)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (index >= m_maxVertexAttribs) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "enableVertexAttribArray", "index out of range");
|
| - return;
|
| - }
|
| -
|
| - WebGLVertexArrayObjectOES::VertexAttribState& state = m_boundVertexArrayObject->getVertexAttribState(index);
|
| - state.enabled = true;
|
| -
|
| - m_onePlusMaxEnabledAttribIndex = max(index + 1, m_onePlusMaxEnabledAttribIndex);
|
| -
|
| - m_context->enableVertexAttribArray(index);
|
| -}
|
| -
|
| -void WebGLRenderingContext::finish()
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_context->flush(); // Intentionally a flush, not a finish.
|
| -}
|
| -
|
| -void WebGLRenderingContext::flush()
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_context->flush();
|
| -}
|
| -
|
| -void WebGLRenderingContext::framebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, WebGLRenderbuffer* buffer)
|
| -{
|
| - if (isContextLost() || !validateFramebufferFuncParameters("framebufferRenderbuffer", target, attachment))
|
| - return;
|
| - if (renderbuffertarget != GL_RENDERBUFFER) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "framebufferRenderbuffer", "invalid target");
|
| - return;
|
| - }
|
| - if (buffer && !buffer->validate(contextGroup(), this)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "framebufferRenderbuffer", "no buffer or buffer not from this context");
|
| - return;
|
| - }
|
| - // Don't allow the default framebuffer to be mutated; all current
|
| - // implementations use an FBO internally in place of the default
|
| - // FBO.
|
| - if (!m_framebufferBinding || !m_framebufferBinding->object()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "framebufferRenderbuffer", "no framebuffer bound");
|
| - return;
|
| - }
|
| - Platform3DObject bufferObject = objectOrZero(buffer);
|
| - switch (attachment) {
|
| - case GC3D_DEPTH_STENCIL_ATTACHMENT_WEBGL:
|
| - if (isDepthStencilSupported() || !buffer) {
|
| - m_context->framebufferRenderbuffer(target, GL_DEPTH_ATTACHMENT, renderbuffertarget, bufferObject);
|
| - m_context->framebufferRenderbuffer(target, GL_STENCIL_ATTACHMENT, renderbuffertarget, bufferObject);
|
| - } else {
|
| - WebGLRenderbuffer* emulatedStencilBuffer = ensureEmulatedStencilBuffer(renderbuffertarget, buffer);
|
| - if (!emulatedStencilBuffer) {
|
| - synthesizeGLError(GL_OUT_OF_MEMORY, "framebufferRenderbuffer", "out of memory");
|
| - return;
|
| - }
|
| - m_context->framebufferRenderbuffer(target, GL_DEPTH_ATTACHMENT, renderbuffertarget, bufferObject);
|
| - m_context->framebufferRenderbuffer(target, GL_STENCIL_ATTACHMENT, renderbuffertarget, objectOrZero(emulatedStencilBuffer));
|
| - }
|
| - break;
|
| - default:
|
| - m_context->framebufferRenderbuffer(target, attachment, renderbuffertarget, bufferObject);
|
| - }
|
| - m_framebufferBinding->setAttachmentForBoundFramebuffer(attachment, buffer);
|
| - applyStencilTest();
|
| -}
|
| -
|
| -void WebGLRenderingContext::framebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, WebGLTexture* texture, GLint level)
|
| -{
|
| - if (isContextLost() || !validateFramebufferFuncParameters("framebufferTexture2D", target, attachment))
|
| - return;
|
| - if (level) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "framebufferTexture2D", "level not 0");
|
| - return;
|
| - }
|
| - if (texture && !texture->validate(contextGroup(), this)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "framebufferTexture2D", "no texture or texture not from this context");
|
| - return;
|
| - }
|
| - // Don't allow the default framebuffer to be mutated; all current
|
| - // implementations use an FBO internally in place of the default
|
| - // FBO.
|
| - if (!m_framebufferBinding || !m_framebufferBinding->object()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "framebufferTexture2D", "no framebuffer bound");
|
| - return;
|
| - }
|
| - Platform3DObject textureObject = objectOrZero(texture);
|
| - switch (attachment) {
|
| - case GC3D_DEPTH_STENCIL_ATTACHMENT_WEBGL:
|
| - m_context->framebufferTexture2D(target, GL_DEPTH_ATTACHMENT, textarget, textureObject, level);
|
| - m_context->framebufferTexture2D(target, GL_STENCIL_ATTACHMENT, textarget, textureObject, level);
|
| - break;
|
| - case GL_DEPTH_ATTACHMENT:
|
| - m_context->framebufferTexture2D(target, attachment, textarget, textureObject, level);
|
| - break;
|
| - case GL_STENCIL_ATTACHMENT:
|
| - m_context->framebufferTexture2D(target, attachment, textarget, textureObject, level);
|
| - break;
|
| - default:
|
| - m_context->framebufferTexture2D(target, attachment, textarget, textureObject, level);
|
| - }
|
| - m_framebufferBinding->setAttachmentForBoundFramebuffer(attachment, textarget, texture, level);
|
| - applyStencilTest();
|
| -}
|
| -
|
| -void WebGLRenderingContext::frontFace(GLenum mode)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - switch (mode) {
|
| - case GL_CW:
|
| - case GL_CCW:
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "frontFace", "invalid mode");
|
| - return;
|
| - }
|
| - m_context->frontFace(mode);
|
| -}
|
| -
|
| -void WebGLRenderingContext::generateMipmap(GLenum target)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - WebGLTexture* tex = validateTextureBinding("generateMipmap", target, false);
|
| - if (!tex)
|
| - return;
|
| - if (!tex->canGenerateMipmaps()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "generateMipmap", "level 0 not power of 2 or not all the same size");
|
| - return;
|
| - }
|
| - if (!validateSettableTexFormat("generateMipmap", tex->getInternalFormat(target, 0)))
|
| - return;
|
| -
|
| - // generateMipmap won't work properly if minFilter is not NEAREST_MIPMAP_LINEAR
|
| - // on Mac. Remove the hack once this driver bug is fixed.
|
| -#if OS(MACOSX)
|
| - bool needToResetMinFilter = false;
|
| - if (tex->getMinFilter() != GL_NEAREST_MIPMAP_LINEAR) {
|
| - m_context->texParameteri(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_LINEAR);
|
| - needToResetMinFilter = true;
|
| - }
|
| -#endif
|
| - m_context->generateMipmap(target);
|
| -#if OS(MACOSX)
|
| - if (needToResetMinFilter)
|
| - m_context->texParameteri(target, GL_TEXTURE_MIN_FILTER, tex->getMinFilter());
|
| -#endif
|
| - tex->generateMipmapLevelInfo();
|
| -}
|
| -
|
| -PassRefPtr<WebGLActiveInfo> WebGLRenderingContext::getActiveAttrib(WebGLProgram* program, GLuint index)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("getActiveAttrib", program))
|
| - return nullptr;
|
| - blink::WebGraphicsContext3D::ActiveInfo info;
|
| - if (!m_context->getActiveAttrib(objectOrZero(program), index, info))
|
| - return nullptr;
|
| - return WebGLActiveInfo::create(info.name, info.type, info.size);
|
| -}
|
| -
|
| -PassRefPtr<WebGLActiveInfo> WebGLRenderingContext::getActiveUniform(WebGLProgram* program, GLuint index)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("getActiveUniform", program))
|
| - return nullptr;
|
| - blink::WebGraphicsContext3D::ActiveInfo info;
|
| - if (!m_context->getActiveUniform(objectOrZero(program), index, info))
|
| - return nullptr;
|
| - return WebGLActiveInfo::create(info.name, info.type, info.size);
|
| -}
|
| -
|
| -bool WebGLRenderingContext::getAttachedShaders(WebGLProgram* program, Vector<RefPtr<WebGLShader> >& shaderObjects)
|
| -{
|
| - shaderObjects.clear();
|
| - if (isContextLost() || !validateWebGLObject("getAttachedShaders", program))
|
| - return false;
|
| -
|
| - const GLenum shaderType[] = {
|
| - GL_VERTEX_SHADER,
|
| - GL_FRAGMENT_SHADER
|
| - };
|
| - for (unsigned i = 0; i < sizeof(shaderType) / sizeof(GLenum); ++i) {
|
| - WebGLShader* shader = program->getAttachedShader(shaderType[i]);
|
| - if (shader)
|
| - shaderObjects.append(shader);
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -GLint WebGLRenderingContext::getAttribLocation(WebGLProgram* program, const String& name)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("getAttribLocation", program))
|
| - return -1;
|
| - if (!validateLocationLength("getAttribLocation", name))
|
| - return -1;
|
| - if (!validateString("getAttribLocation", name))
|
| - return -1;
|
| - if (isPrefixReserved(name))
|
| - return -1;
|
| - if (!program->linkStatus()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "getAttribLocation", "program not linked");
|
| - return 0;
|
| - }
|
| - return m_context->getAttribLocation(objectOrZero(program), name.utf8().data());
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getBufferParameter(GLenum target, GLenum pname)
|
| -{
|
| - if (isContextLost())
|
| - return WebGLGetInfo();
|
| - if (target != GL_ARRAY_BUFFER && target != GL_ELEMENT_ARRAY_BUFFER) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "getBufferParameter", "invalid target");
|
| - return WebGLGetInfo();
|
| - }
|
| -
|
| - if (pname != GL_BUFFER_SIZE && pname != GL_BUFFER_USAGE) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "getBufferParameter", "invalid parameter name");
|
| - return WebGLGetInfo();
|
| - }
|
| -
|
| - GLint value = 0;
|
| - m_context->getBufferParameteriv(target, pname, &value);
|
| - if (pname == GL_BUFFER_SIZE)
|
| - return WebGLGetInfo(value);
|
| - return WebGLGetInfo(static_cast<unsigned>(value));
|
| -}
|
| -
|
| -PassRefPtr<WebGLContextAttributes> WebGLRenderingContext::getContextAttributes()
|
| -{
|
| - if (isContextLost())
|
| - return nullptr;
|
| - // We always need to return a new WebGLContextAttributes object to
|
| - // prevent the user from mutating any cached version.
|
| - blink::WebGraphicsContext3D::Attributes attrs = m_context->getContextAttributes();
|
| - RefPtr<WebGLContextAttributes> attributes = m_requestedAttributes->clone();
|
| - // Some requested attributes may not be honored, so we need to query the underlying
|
| - // context/drawing buffer and adjust accordingly.
|
| - if (m_requestedAttributes->depth() && !attrs.depth)
|
| - attributes->setDepth(false);
|
| - if (m_requestedAttributes->stencil() && !attrs.stencil)
|
| - attributes->setStencil(false);
|
| - attributes->setAntialias(m_drawingBuffer->multisample());
|
| - return attributes.release();
|
| -}
|
| -
|
| -GLenum WebGLRenderingContext::getError()
|
| -{
|
| - if (m_lostContextErrors.size()) {
|
| - GLenum err = m_lostContextErrors.first();
|
| - m_lostContextErrors.remove(0);
|
| - return err;
|
| - }
|
| -
|
| - if (isContextLost())
|
| - return GL_NO_ERROR;
|
| -
|
| - return m_context->getError();
|
| -}
|
| -
|
| -bool WebGLRenderingContext::ExtensionTracker::matchesNameWithPrefixes(const String& name) const
|
| -{
|
| - static const char* const unprefixed[] = { "", 0, };
|
| -
|
| - const char* const* prefixes = m_prefixes ? m_prefixes : unprefixed;
|
| - for (; *prefixes; ++prefixes) {
|
| - String prefixedName = String(*prefixes) + extensionName();
|
| - if (equalIgnoringCase(prefixedName, name)) {
|
| - return true;
|
| - }
|
| - }
|
| - return false;
|
| -}
|
| -
|
| -PassRefPtr<WebGLExtension> WebGLRenderingContext::getExtension(const String& name)
|
| -{
|
| - if (isContextLost())
|
| - return nullptr;
|
| -
|
| - for (size_t i = 0; i < m_extensions.size(); ++i) {
|
| - ExtensionTracker* tracker = m_extensions[i];
|
| - if (tracker->matchesNameWithPrefixes(name)) {
|
| - if (tracker->webglDebugRendererInfo() && !allowWebGLDebugRendererInfo())
|
| - return nullptr;
|
| - if (tracker->privileged() && !allowPrivilegedExtensions())
|
| - return nullptr;
|
| - if (tracker->draft() && !RuntimeEnabledFeatures::webGLDraftExtensionsEnabled())
|
| - return nullptr;
|
| - if (!tracker->supported(this))
|
| - return nullptr;
|
| - return tracker->getExtension(this);
|
| - }
|
| - }
|
| -
|
| - return nullptr;
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getFramebufferAttachmentParameter(GLenum target, GLenum attachment, GLenum pname)
|
| -{
|
| - if (isContextLost() || !validateFramebufferFuncParameters("getFramebufferAttachmentParameter", target, attachment))
|
| - return WebGLGetInfo();
|
| -
|
| - if (!m_framebufferBinding || !m_framebufferBinding->object()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "getFramebufferAttachmentParameter", "no framebuffer bound");
|
| - return WebGLGetInfo();
|
| - }
|
| -
|
| - WebGLSharedObject* object = m_framebufferBinding->getAttachmentObject(attachment);
|
| - if (!object) {
|
| - if (pname == GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE)
|
| - return WebGLGetInfo(GL_NONE);
|
| - // OpenGL ES 2.0 specifies INVALID_ENUM in this case, while desktop GL
|
| - // specifies INVALID_OPERATION.
|
| - synthesizeGLError(GL_INVALID_ENUM, "getFramebufferAttachmentParameter", "invalid parameter name");
|
| - return WebGLGetInfo();
|
| - }
|
| -
|
| - ASSERT(object->isTexture() || object->isRenderbuffer());
|
| - if (object->isTexture()) {
|
| - switch (pname) {
|
| - case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
|
| - return WebGLGetInfo(GL_TEXTURE);
|
| - case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
|
| - return WebGLGetInfo(PassRefPtr<WebGLTexture>(static_cast<WebGLTexture*>(object)));
|
| - case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL:
|
| - case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE:
|
| - {
|
| - GLint value = 0;
|
| - m_context->getFramebufferAttachmentParameteriv(target, attachment, pname, &value);
|
| - return WebGLGetInfo(value);
|
| - }
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "getFramebufferAttachmentParameter", "invalid parameter name for texture attachment");
|
| - return WebGLGetInfo();
|
| - }
|
| - } else {
|
| - switch (pname) {
|
| - case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
|
| - return WebGLGetInfo(GL_RENDERBUFFER);
|
| - case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
|
| - return WebGLGetInfo(PassRefPtr<WebGLRenderbuffer>(static_cast<WebGLRenderbuffer*>(object)));
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "getFramebufferAttachmentParameter", "invalid parameter name for renderbuffer attachment");
|
| - return WebGLGetInfo();
|
| - }
|
| - }
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getParameter(GLenum pname)
|
| -{
|
| - if (isContextLost())
|
| - return WebGLGetInfo();
|
| - const int intZero = 0;
|
| - switch (pname) {
|
| - case GL_ACTIVE_TEXTURE:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_ALIASED_LINE_WIDTH_RANGE:
|
| - return getWebGLFloatArrayParameter(pname);
|
| - case GL_ALIASED_POINT_SIZE_RANGE:
|
| - return getWebGLFloatArrayParameter(pname);
|
| - case GL_ALPHA_BITS:
|
| - return getIntParameter(pname);
|
| - case GL_ARRAY_BUFFER_BINDING:
|
| - return WebGLGetInfo(PassRefPtr<WebGLBuffer>(m_boundArrayBuffer));
|
| - case GL_BLEND:
|
| - return getBooleanParameter(pname);
|
| - case GL_BLEND_COLOR:
|
| - return getWebGLFloatArrayParameter(pname);
|
| - case GL_BLEND_DST_ALPHA:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_BLEND_DST_RGB:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_BLEND_EQUATION_ALPHA:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_BLEND_EQUATION_RGB:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_BLEND_SRC_ALPHA:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_BLEND_SRC_RGB:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_BLUE_BITS:
|
| - return getIntParameter(pname);
|
| - case GL_COLOR_CLEAR_VALUE:
|
| - return getWebGLFloatArrayParameter(pname);
|
| - case GL_COLOR_WRITEMASK:
|
| - return getBooleanArrayParameter(pname);
|
| - case GL_COMPRESSED_TEXTURE_FORMATS:
|
| - return WebGLGetInfo(Uint32Array::create(m_compressedTextureFormats.data(), m_compressedTextureFormats.size()));
|
| - case GL_CULL_FACE:
|
| - return getBooleanParameter(pname);
|
| - case GL_CULL_FACE_MODE:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_CURRENT_PROGRAM:
|
| - return WebGLGetInfo(PassRefPtr<WebGLProgram>(m_currentProgram));
|
| - case GL_DEPTH_BITS:
|
| - if (!m_framebufferBinding && !m_requestedAttributes->depth())
|
| - return WebGLGetInfo(intZero);
|
| - return getIntParameter(pname);
|
| - case GL_DEPTH_CLEAR_VALUE:
|
| - return getFloatParameter(pname);
|
| - case GL_DEPTH_FUNC:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_DEPTH_RANGE:
|
| - return getWebGLFloatArrayParameter(pname);
|
| - case GL_DEPTH_TEST:
|
| - return getBooleanParameter(pname);
|
| - case GL_DEPTH_WRITEMASK:
|
| - return getBooleanParameter(pname);
|
| - case GL_DITHER:
|
| - return getBooleanParameter(pname);
|
| - case GL_ELEMENT_ARRAY_BUFFER_BINDING:
|
| - return WebGLGetInfo(PassRefPtr<WebGLBuffer>(m_boundVertexArrayObject->boundElementArrayBuffer()));
|
| - case GL_FRAMEBUFFER_BINDING:
|
| - return WebGLGetInfo(PassRefPtr<WebGLFramebuffer>(m_framebufferBinding));
|
| - case GL_FRONT_FACE:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_GENERATE_MIPMAP_HINT:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_GREEN_BITS:
|
| - return getIntParameter(pname);
|
| - case GL_LINE_WIDTH:
|
| - return getFloatParameter(pname);
|
| - case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS:
|
| - return getIntParameter(pname);
|
| - case GL_MAX_CUBE_MAP_TEXTURE_SIZE:
|
| - return getIntParameter(pname);
|
| - case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
|
| - return getIntParameter(pname);
|
| - case GL_MAX_RENDERBUFFER_SIZE:
|
| - return getIntParameter(pname);
|
| - case GL_MAX_TEXTURE_IMAGE_UNITS:
|
| - return getIntParameter(pname);
|
| - case GL_MAX_TEXTURE_SIZE:
|
| - return getIntParameter(pname);
|
| - case GL_MAX_VARYING_VECTORS:
|
| - return getIntParameter(pname);
|
| - case GL_MAX_VERTEX_ATTRIBS:
|
| - return getIntParameter(pname);
|
| - case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS:
|
| - return getIntParameter(pname);
|
| - case GL_MAX_VERTEX_UNIFORM_VECTORS:
|
| - return getIntParameter(pname);
|
| - case GL_MAX_VIEWPORT_DIMS:
|
| - return getWebGLIntArrayParameter(pname);
|
| - case GL_NUM_SHADER_BINARY_FORMATS:
|
| - // FIXME: should we always return 0 for this?
|
| - return getIntParameter(pname);
|
| - case GL_PACK_ALIGNMENT:
|
| - return getIntParameter(pname);
|
| - case GL_POLYGON_OFFSET_FACTOR:
|
| - return getFloatParameter(pname);
|
| - case GL_POLYGON_OFFSET_FILL:
|
| - return getBooleanParameter(pname);
|
| - case GL_POLYGON_OFFSET_UNITS:
|
| - return getFloatParameter(pname);
|
| - case GL_RED_BITS:
|
| - return getIntParameter(pname);
|
| - case GL_RENDERBUFFER_BINDING:
|
| - return WebGLGetInfo(PassRefPtr<WebGLRenderbuffer>(m_renderbufferBinding));
|
| - case GL_RENDERER:
|
| - return WebGLGetInfo(String("WebKit WebGL"));
|
| - case GL_SAMPLE_BUFFERS:
|
| - return getIntParameter(pname);
|
| - case GL_SAMPLE_COVERAGE_INVERT:
|
| - return getBooleanParameter(pname);
|
| - case GL_SAMPLE_COVERAGE_VALUE:
|
| - return getFloatParameter(pname);
|
| - case GL_SAMPLES:
|
| - return getIntParameter(pname);
|
| - case GL_SCISSOR_BOX:
|
| - return getWebGLIntArrayParameter(pname);
|
| - case GL_SCISSOR_TEST:
|
| - return getBooleanParameter(pname);
|
| - case GL_SHADING_LANGUAGE_VERSION:
|
| - return WebGLGetInfo("WebGL GLSL ES 1.0 (" + String(m_context->getString(GL_SHADING_LANGUAGE_VERSION)) + ")");
|
| - case GL_STENCIL_BACK_FAIL:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_STENCIL_BACK_FUNC:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_STENCIL_BACK_PASS_DEPTH_PASS:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_STENCIL_BACK_REF:
|
| - return getIntParameter(pname);
|
| - case GL_STENCIL_BACK_VALUE_MASK:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_STENCIL_BACK_WRITEMASK:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_STENCIL_BITS:
|
| - if (!m_framebufferBinding && !m_requestedAttributes->stencil())
|
| - return WebGLGetInfo(intZero);
|
| - return getIntParameter(pname);
|
| - case GL_STENCIL_CLEAR_VALUE:
|
| - return getIntParameter(pname);
|
| - case GL_STENCIL_FAIL:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_STENCIL_FUNC:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_STENCIL_PASS_DEPTH_FAIL:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_STENCIL_PASS_DEPTH_PASS:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_STENCIL_REF:
|
| - return getIntParameter(pname);
|
| - case GL_STENCIL_TEST:
|
| - return getBooleanParameter(pname);
|
| - case GL_STENCIL_VALUE_MASK:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_STENCIL_WRITEMASK:
|
| - return getUnsignedIntParameter(pname);
|
| - case GL_SUBPIXEL_BITS:
|
| - return getIntParameter(pname);
|
| - case GL_TEXTURE_BINDING_2D:
|
| - return WebGLGetInfo(PassRefPtr<WebGLTexture>(m_textureUnits[m_activeTextureUnit].m_texture2DBinding));
|
| - case GL_TEXTURE_BINDING_CUBE_MAP:
|
| - return WebGLGetInfo(PassRefPtr<WebGLTexture>(m_textureUnits[m_activeTextureUnit].m_textureCubeMapBinding));
|
| - case GL_UNPACK_ALIGNMENT:
|
| - return getIntParameter(pname);
|
| - case GC3D_UNPACK_FLIP_Y_WEBGL:
|
| - return WebGLGetInfo(m_unpackFlipY);
|
| - case GC3D_UNPACK_PREMULTIPLY_ALPHA_WEBGL:
|
| - return WebGLGetInfo(m_unpackPremultiplyAlpha);
|
| - case GC3D_UNPACK_COLORSPACE_CONVERSION_WEBGL:
|
| - return WebGLGetInfo(m_unpackColorspaceConversion);
|
| - case GL_VENDOR:
|
| - return WebGLGetInfo(String("WebKit"));
|
| - case GL_VERSION:
|
| - return WebGLGetInfo("WebGL 1.0 (" + String(m_context->getString(GL_VERSION)) + ")");
|
| - case GL_VIEWPORT:
|
| - return getWebGLIntArrayParameter(pname);
|
| - case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES: // OES_standard_derivatives
|
| - if (m_oesStandardDerivatives)
|
| - return getUnsignedIntParameter(GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES);
|
| - synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name, OES_standard_derivatives not enabled");
|
| - return WebGLGetInfo();
|
| - case WebGLDebugRendererInfo::UNMASKED_RENDERER_WEBGL:
|
| - if (m_webglDebugRendererInfo)
|
| - return WebGLGetInfo(m_context->getString(GL_RENDERER));
|
| - synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name, WEBGL_debug_renderer_info not enabled");
|
| - return WebGLGetInfo();
|
| - case WebGLDebugRendererInfo::UNMASKED_VENDOR_WEBGL:
|
| - if (m_webglDebugRendererInfo)
|
| - return WebGLGetInfo(m_context->getString(GL_VENDOR));
|
| - synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name, WEBGL_debug_renderer_info not enabled");
|
| - return WebGLGetInfo();
|
| - case GL_VERTEX_ARRAY_BINDING_OES: // OES_vertex_array_object
|
| - if (m_oesVertexArrayObject) {
|
| - if (!m_boundVertexArrayObject->isDefaultObject())
|
| - return WebGLGetInfo(PassRefPtr<WebGLVertexArrayObjectOES>(m_boundVertexArrayObject));
|
| - return WebGLGetInfo();
|
| - }
|
| - synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name, OES_vertex_array_object not enabled");
|
| - return WebGLGetInfo();
|
| - case GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: // EXT_texture_filter_anisotropic
|
| - if (m_extTextureFilterAnisotropic)
|
| - return getUnsignedIntParameter(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT);
|
| - synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name, EXT_texture_filter_anisotropic not enabled");
|
| - return WebGLGetInfo();
|
| - case GL_MAX_COLOR_ATTACHMENTS_EXT: // EXT_draw_buffers BEGIN
|
| - if (m_webglDrawBuffers)
|
| - return WebGLGetInfo(maxColorAttachments());
|
| - synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name, WEBGL_draw_buffers not enabled");
|
| - return WebGLGetInfo();
|
| - case GL_MAX_DRAW_BUFFERS_EXT:
|
| - if (m_webglDrawBuffers)
|
| - return WebGLGetInfo(maxDrawBuffers());
|
| - synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name, WEBGL_draw_buffers not enabled");
|
| - return WebGLGetInfo();
|
| - default:
|
| - if (m_webglDrawBuffers
|
| - && pname >= GL_DRAW_BUFFER0_EXT
|
| - && pname < static_cast<GLenum>(GL_DRAW_BUFFER0_EXT + maxDrawBuffers())) {
|
| - GLint value = GL_NONE;
|
| - if (m_framebufferBinding)
|
| - value = m_framebufferBinding->getDrawBuffer(pname);
|
| - else // emulated backbuffer
|
| - value = m_backDrawBuffer;
|
| - return WebGLGetInfo(value);
|
| - }
|
| - synthesizeGLError(GL_INVALID_ENUM, "getParameter", "invalid parameter name");
|
| - return WebGLGetInfo();
|
| - }
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getProgramParameter(WebGLProgram* program, GLenum pname)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("getProgramParameter", program))
|
| - return WebGLGetInfo();
|
| -
|
| - GLint value = 0;
|
| - switch (pname) {
|
| - case GL_DELETE_STATUS:
|
| - return WebGLGetInfo(program->isDeleted());
|
| - case GL_VALIDATE_STATUS:
|
| - m_context->getProgramiv(objectOrZero(program), pname, &value);
|
| - return WebGLGetInfo(static_cast<bool>(value));
|
| - case GL_LINK_STATUS:
|
| - return WebGLGetInfo(program->linkStatus());
|
| - case GL_ATTACHED_SHADERS:
|
| - case GL_ACTIVE_ATTRIBUTES:
|
| - case GL_ACTIVE_UNIFORMS:
|
| - m_context->getProgramiv(objectOrZero(program), pname, &value);
|
| - return WebGLGetInfo(value);
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "getProgramParameter", "invalid parameter name");
|
| - return WebGLGetInfo();
|
| - }
|
| -}
|
| -
|
| -String WebGLRenderingContext::getProgramInfoLog(WebGLProgram* program)
|
| -{
|
| - if (isContextLost())
|
| - return String();
|
| - if (!validateWebGLObject("getProgramInfoLog", program))
|
| - return "";
|
| - return ensureNotNull(m_context->getProgramInfoLog(objectOrZero(program)));
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getRenderbufferParameter(GLenum target, GLenum pname)
|
| -{
|
| - if (isContextLost())
|
| - return WebGLGetInfo();
|
| - if (target != GL_RENDERBUFFER) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "getRenderbufferParameter", "invalid target");
|
| - return WebGLGetInfo();
|
| - }
|
| - if (!m_renderbufferBinding || !m_renderbufferBinding->object()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "getRenderbufferParameter", "no renderbuffer bound");
|
| - return WebGLGetInfo();
|
| - }
|
| -
|
| - GLint value = 0;
|
| - switch (pname) {
|
| - case GL_RENDERBUFFER_WIDTH:
|
| - case GL_RENDERBUFFER_HEIGHT:
|
| - case GL_RENDERBUFFER_RED_SIZE:
|
| - case GL_RENDERBUFFER_GREEN_SIZE:
|
| - case GL_RENDERBUFFER_BLUE_SIZE:
|
| - case GL_RENDERBUFFER_ALPHA_SIZE:
|
| - case GL_RENDERBUFFER_DEPTH_SIZE:
|
| - m_context->getRenderbufferParameteriv(target, pname, &value);
|
| - return WebGLGetInfo(value);
|
| - case GL_RENDERBUFFER_STENCIL_SIZE:
|
| - if (m_renderbufferBinding->emulatedStencilBuffer()) {
|
| - m_context->bindRenderbuffer(target, objectOrZero(m_renderbufferBinding->emulatedStencilBuffer()));
|
| - m_context->getRenderbufferParameteriv(target, pname, &value);
|
| - m_context->bindRenderbuffer(target, objectOrZero(m_renderbufferBinding.get()));
|
| - } else {
|
| - m_context->getRenderbufferParameteriv(target, pname, &value);
|
| - }
|
| - return WebGLGetInfo(value);
|
| - case GL_RENDERBUFFER_INTERNAL_FORMAT:
|
| - return WebGLGetInfo(m_renderbufferBinding->internalFormat());
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "getRenderbufferParameter", "invalid parameter name");
|
| - return WebGLGetInfo();
|
| - }
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getShaderParameter(WebGLShader* shader, GLenum pname)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("getShaderParameter", shader))
|
| - return WebGLGetInfo();
|
| - GLint value = 0;
|
| - switch (pname) {
|
| - case GL_DELETE_STATUS:
|
| - return WebGLGetInfo(shader->isDeleted());
|
| - case GL_COMPILE_STATUS:
|
| - m_context->getShaderiv(objectOrZero(shader), pname, &value);
|
| - return WebGLGetInfo(static_cast<bool>(value));
|
| - case GL_SHADER_TYPE:
|
| - m_context->getShaderiv(objectOrZero(shader), pname, &value);
|
| - return WebGLGetInfo(static_cast<unsigned>(value));
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "getShaderParameter", "invalid parameter name");
|
| - return WebGLGetInfo();
|
| - }
|
| -}
|
| -
|
| -String WebGLRenderingContext::getShaderInfoLog(WebGLShader* shader)
|
| -{
|
| - if (isContextLost())
|
| - return String();
|
| - if (!validateWebGLObject("getShaderInfoLog", shader))
|
| - return "";
|
| - return ensureNotNull(m_context->getShaderInfoLog(objectOrZero(shader)));
|
| -}
|
| -
|
| -PassRefPtr<WebGLShaderPrecisionFormat> WebGLRenderingContext::getShaderPrecisionFormat(GLenum shaderType, GLenum precisionType)
|
| -{
|
| - if (isContextLost())
|
| - return nullptr;
|
| - switch (shaderType) {
|
| - case GL_VERTEX_SHADER:
|
| - case GL_FRAGMENT_SHADER:
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "getShaderPrecisionFormat", "invalid shader type");
|
| - return nullptr;
|
| - }
|
| - switch (precisionType) {
|
| - case GL_LOW_FLOAT:
|
| - case GL_MEDIUM_FLOAT:
|
| - case GL_HIGH_FLOAT:
|
| - case GL_LOW_INT:
|
| - case GL_MEDIUM_INT:
|
| - case GL_HIGH_INT:
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "getShaderPrecisionFormat", "invalid precision type");
|
| - return nullptr;
|
| - }
|
| -
|
| - GLint range[2] = {0, 0};
|
| - GLint precision = 0;
|
| - m_context->getShaderPrecisionFormat(shaderType, precisionType, range, &precision);
|
| - return WebGLShaderPrecisionFormat::create(range[0], range[1], precision);
|
| -}
|
| -
|
| -String WebGLRenderingContext::getShaderSource(WebGLShader* shader)
|
| -{
|
| - if (isContextLost())
|
| - return String();
|
| - if (!validateWebGLObject("getShaderSource", shader))
|
| - return "";
|
| - return ensureNotNull(shader->source());
|
| -}
|
| -
|
| -Vector<String> WebGLRenderingContext::getSupportedExtensions()
|
| -{
|
| - Vector<String> result;
|
| - if (isContextLost())
|
| - return result;
|
| -
|
| - for (size_t i = 0; i < m_extensions.size(); ++i) {
|
| - ExtensionTracker* tracker = m_extensions[i];
|
| - if (tracker->webglDebugRendererInfo() && !allowWebGLDebugRendererInfo())
|
| - continue;
|
| - if (tracker->privileged() && !allowPrivilegedExtensions())
|
| - continue;
|
| - if (tracker->draft() && !RuntimeEnabledFeatures::webGLDraftExtensionsEnabled())
|
| - continue;
|
| - if (tracker->supported(this))
|
| - result.append(String(tracker->prefixed() ? "WEBKIT_" : "") + tracker->extensionName());
|
| - }
|
| -
|
| - return result;
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getTexParameter(GLenum target, GLenum pname)
|
| -{
|
| - if (isContextLost())
|
| - return WebGLGetInfo();
|
| - WebGLTexture* tex = validateTextureBinding("getTexParameter", target, false);
|
| - if (!tex)
|
| - return WebGLGetInfo();
|
| - GLint value = 0;
|
| - switch (pname) {
|
| - case GL_TEXTURE_MAG_FILTER:
|
| - case GL_TEXTURE_MIN_FILTER:
|
| - case GL_TEXTURE_WRAP_S:
|
| - case GL_TEXTURE_WRAP_T:
|
| - m_context->getTexParameteriv(target, pname, &value);
|
| - return WebGLGetInfo(static_cast<unsigned>(value));
|
| - case GL_TEXTURE_MAX_ANISOTROPY_EXT: // EXT_texture_filter_anisotropic
|
| - if (m_extTextureFilterAnisotropic) {
|
| - m_context->getTexParameteriv(target, pname, &value);
|
| - return WebGLGetInfo(static_cast<unsigned>(value));
|
| - }
|
| - synthesizeGLError(GL_INVALID_ENUM, "getTexParameter", "invalid parameter name, EXT_texture_filter_anisotropic not enabled");
|
| - return WebGLGetInfo();
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "getTexParameter", "invalid parameter name");
|
| - return WebGLGetInfo();
|
| - }
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getUniform(WebGLProgram* program, const WebGLUniformLocation* uniformLocation)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("getUniform", program))
|
| - return WebGLGetInfo();
|
| - if (!uniformLocation || uniformLocation->program() != program) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "getUniform", "no uniformlocation or not valid for this program");
|
| - return WebGLGetInfo();
|
| - }
|
| - GLint location = uniformLocation->location();
|
| -
|
| - // FIXME: make this more efficient using WebGLUniformLocation and caching types in it
|
| - GLint activeUniforms = 0;
|
| - m_context->getProgramiv(objectOrZero(program), GL_ACTIVE_UNIFORMS, &activeUniforms);
|
| - for (GLint i = 0; i < activeUniforms; i++) {
|
| - blink::WebGraphicsContext3D::ActiveInfo info;
|
| - if (!m_context->getActiveUniform(objectOrZero(program), i, info))
|
| - return WebGLGetInfo();
|
| - String name = info.name;
|
| - StringBuilder nameBuilder;
|
| - // Strip "[0]" from the name if it's an array.
|
| - if (info.size > 1 && name.endsWith("[0]"))
|
| - info.name = name.left(name.length() - 3);
|
| - // If it's an array, we need to iterate through each element, appending "[index]" to the name.
|
| - for (GLint index = 0; index < info.size; ++index) {
|
| - nameBuilder.clear();
|
| - nameBuilder.append(info.name);
|
| - if (info.size > 1 && index >= 1) {
|
| - nameBuilder.append('[');
|
| - nameBuilder.append(String::number(index));
|
| - nameBuilder.append(']');
|
| - }
|
| - // Now need to look this up by name again to find its location
|
| - GLint loc = m_context->getUniformLocation(objectOrZero(program), nameBuilder.toString().utf8().data());
|
| - if (loc == location) {
|
| - // Found it. Use the type in the ActiveInfo to determine the return type.
|
| - GLenum baseType;
|
| - unsigned length;
|
| - switch (info.type) {
|
| - case GL_BOOL:
|
| - baseType = GL_BOOL;
|
| - length = 1;
|
| - break;
|
| - case GL_BOOL_VEC2:
|
| - baseType = GL_BOOL;
|
| - length = 2;
|
| - break;
|
| - case GL_BOOL_VEC3:
|
| - baseType = GL_BOOL;
|
| - length = 3;
|
| - break;
|
| - case GL_BOOL_VEC4:
|
| - baseType = GL_BOOL;
|
| - length = 4;
|
| - break;
|
| - case GL_INT:
|
| - baseType = GL_INT;
|
| - length = 1;
|
| - break;
|
| - case GL_INT_VEC2:
|
| - baseType = GL_INT;
|
| - length = 2;
|
| - break;
|
| - case GL_INT_VEC3:
|
| - baseType = GL_INT;
|
| - length = 3;
|
| - break;
|
| - case GL_INT_VEC4:
|
| - baseType = GL_INT;
|
| - length = 4;
|
| - break;
|
| - case GL_FLOAT:
|
| - baseType = GL_FLOAT;
|
| - length = 1;
|
| - break;
|
| - case GL_FLOAT_VEC2:
|
| - baseType = GL_FLOAT;
|
| - length = 2;
|
| - break;
|
| - case GL_FLOAT_VEC3:
|
| - baseType = GL_FLOAT;
|
| - length = 3;
|
| - break;
|
| - case GL_FLOAT_VEC4:
|
| - baseType = GL_FLOAT;
|
| - length = 4;
|
| - break;
|
| - case GL_FLOAT_MAT2:
|
| - baseType = GL_FLOAT;
|
| - length = 4;
|
| - break;
|
| - case GL_FLOAT_MAT3:
|
| - baseType = GL_FLOAT;
|
| - length = 9;
|
| - break;
|
| - case GL_FLOAT_MAT4:
|
| - baseType = GL_FLOAT;
|
| - length = 16;
|
| - break;
|
| - case GL_SAMPLER_2D:
|
| - case GL_SAMPLER_CUBE:
|
| - baseType = GL_INT;
|
| - length = 1;
|
| - break;
|
| - default:
|
| - // Can't handle this type
|
| - synthesizeGLError(GL_INVALID_VALUE, "getUniform", "unhandled type");
|
| - return WebGLGetInfo();
|
| - }
|
| - switch (baseType) {
|
| - case GL_FLOAT: {
|
| - GLfloat value[16] = {0};
|
| - m_context->getUniformfv(objectOrZero(program), location, value);
|
| - if (length == 1)
|
| - return WebGLGetInfo(value[0]);
|
| - return WebGLGetInfo(Float32Array::create(value, length));
|
| - }
|
| - case GL_INT: {
|
| - GLint value[4] = {0};
|
| - m_context->getUniformiv(objectOrZero(program), location, value);
|
| - if (length == 1)
|
| - return WebGLGetInfo(value[0]);
|
| - return WebGLGetInfo(Int32Array::create(value, length));
|
| - }
|
| - case GL_BOOL: {
|
| - GLint value[4] = {0};
|
| - m_context->getUniformiv(objectOrZero(program), location, value);
|
| - if (length > 1) {
|
| - bool boolValue[16] = {0};
|
| - for (unsigned j = 0; j < length; j++)
|
| - boolValue[j] = static_cast<bool>(value[j]);
|
| - return WebGLGetInfo(boolValue, length);
|
| - }
|
| - return WebGLGetInfo(static_cast<bool>(value[0]));
|
| - }
|
| - default:
|
| - notImplemented();
|
| - }
|
| - }
|
| - }
|
| - }
|
| - // If we get here, something went wrong in our unfortunately complex logic above
|
| - synthesizeGLError(GL_INVALID_VALUE, "getUniform", "unknown error");
|
| - return WebGLGetInfo();
|
| -}
|
| -
|
| -PassRefPtr<WebGLUniformLocation> WebGLRenderingContext::getUniformLocation(WebGLProgram* program, const String& name)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("getUniformLocation", program))
|
| - return nullptr;
|
| - if (!validateLocationLength("getUniformLocation", name))
|
| - return nullptr;
|
| - if (!validateString("getUniformLocation", name))
|
| - return nullptr;
|
| - if (isPrefixReserved(name))
|
| - return nullptr;
|
| - if (!program->linkStatus()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "getUniformLocation", "program not linked");
|
| - return nullptr;
|
| - }
|
| - GLint uniformLocation = m_context->getUniformLocation(objectOrZero(program), name.utf8().data());
|
| - if (uniformLocation == -1)
|
| - return nullptr;
|
| - return WebGLUniformLocation::create(program, uniformLocation);
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getVertexAttrib(GLuint index, GLenum pname)
|
| -{
|
| - if (isContextLost())
|
| - return WebGLGetInfo();
|
| - if (index >= m_maxVertexAttribs) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "getVertexAttrib", "index out of range");
|
| - return WebGLGetInfo();
|
| - }
|
| - const WebGLVertexArrayObjectOES::VertexAttribState& state = m_boundVertexArrayObject->getVertexAttribState(index);
|
| -
|
| - if (m_angleInstancedArrays && pname == GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE)
|
| - return WebGLGetInfo(state.divisor);
|
| -
|
| - switch (pname) {
|
| - case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING:
|
| - if (!state.bufferBinding || !state.bufferBinding->object())
|
| - return WebGLGetInfo();
|
| - return WebGLGetInfo(PassRefPtr<WebGLBuffer>(state.bufferBinding));
|
| - case GL_VERTEX_ATTRIB_ARRAY_ENABLED:
|
| - return WebGLGetInfo(state.enabled);
|
| - case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED:
|
| - return WebGLGetInfo(state.normalized);
|
| - case GL_VERTEX_ATTRIB_ARRAY_SIZE:
|
| - return WebGLGetInfo(state.size);
|
| - case GL_VERTEX_ATTRIB_ARRAY_STRIDE:
|
| - return WebGLGetInfo(state.originalStride);
|
| - case GL_VERTEX_ATTRIB_ARRAY_TYPE:
|
| - return WebGLGetInfo(state.type);
|
| - case GL_CURRENT_VERTEX_ATTRIB:
|
| - return WebGLGetInfo(Float32Array::create(m_vertexAttribValue[index].value, 4));
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "getVertexAttrib", "invalid parameter name");
|
| - return WebGLGetInfo();
|
| - }
|
| -}
|
| -
|
| -long long WebGLRenderingContext::getVertexAttribOffset(GLuint index, GLenum pname)
|
| -{
|
| - if (isContextLost())
|
| - return 0;
|
| - if (pname != GL_VERTEX_ATTRIB_ARRAY_POINTER) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "getVertexAttribOffset", "invalid parameter name");
|
| - return 0;
|
| - }
|
| - GLsizeiptr result = m_context->getVertexAttribOffset(index, pname);
|
| - return static_cast<long long>(result);
|
| -}
|
| -
|
| -void WebGLRenderingContext::hint(GLenum target, GLenum mode)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - bool isValid = false;
|
| - switch (target) {
|
| - case GL_GENERATE_MIPMAP_HINT:
|
| - isValid = true;
|
| - break;
|
| - case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES: // OES_standard_derivatives
|
| - if (m_oesStandardDerivatives)
|
| - isValid = true;
|
| - break;
|
| - }
|
| - if (!isValid) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "hint", "invalid target");
|
| - return;
|
| - }
|
| - m_context->hint(target, mode);
|
| -}
|
| -
|
| -GLboolean WebGLRenderingContext::isBuffer(WebGLBuffer* buffer)
|
| -{
|
| - if (!buffer || isContextLost())
|
| - return 0;
|
| -
|
| - if (!buffer->hasEverBeenBound())
|
| - return 0;
|
| -
|
| - return m_context->isBuffer(buffer->object());
|
| -}
|
| -
|
| -bool WebGLRenderingContext::isContextLost()
|
| -{
|
| - return m_contextLost;
|
| -}
|
| -
|
| -GLboolean WebGLRenderingContext::isEnabled(GLenum cap)
|
| -{
|
| - if (isContextLost() || !validateCapability("isEnabled", cap))
|
| - return 0;
|
| - if (cap == GL_STENCIL_TEST)
|
| - return m_stencilEnabled;
|
| - return m_context->isEnabled(cap);
|
| -}
|
| -
|
| -GLboolean WebGLRenderingContext::isFramebuffer(WebGLFramebuffer* framebuffer)
|
| -{
|
| - if (!framebuffer || isContextLost())
|
| - return 0;
|
| -
|
| - if (!framebuffer->hasEverBeenBound())
|
| - return 0;
|
| -
|
| - return m_context->isFramebuffer(framebuffer->object());
|
| -}
|
| -
|
| -GLboolean WebGLRenderingContext::isProgram(WebGLProgram* program)
|
| -{
|
| - if (!program || isContextLost())
|
| - return 0;
|
| -
|
| - return m_context->isProgram(program->object());
|
| -}
|
| -
|
| -GLboolean WebGLRenderingContext::isRenderbuffer(WebGLRenderbuffer* renderbuffer)
|
| -{
|
| - if (!renderbuffer || isContextLost())
|
| - return 0;
|
| -
|
| - if (!renderbuffer->hasEverBeenBound())
|
| - return 0;
|
| -
|
| - return m_context->isRenderbuffer(renderbuffer->object());
|
| -}
|
| -
|
| -GLboolean WebGLRenderingContext::isShader(WebGLShader* shader)
|
| -{
|
| - if (!shader || isContextLost())
|
| - return 0;
|
| -
|
| - return m_context->isShader(shader->object());
|
| -}
|
| -
|
| -GLboolean WebGLRenderingContext::isTexture(WebGLTexture* texture)
|
| -{
|
| - if (!texture || isContextLost())
|
| - return 0;
|
| -
|
| - if (!texture->hasEverBeenBound())
|
| - return 0;
|
| -
|
| - return m_context->isTexture(texture->object());
|
| -}
|
| -
|
| -void WebGLRenderingContext::lineWidth(GLfloat width)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_context->lineWidth(width);
|
| -}
|
| -
|
| -void WebGLRenderingContext::linkProgram(WebGLProgram* program)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("linkProgram", program))
|
| - return;
|
| -
|
| - m_context->linkProgram(objectOrZero(program));
|
| - program->increaseLinkCount();
|
| -}
|
| -
|
| -void WebGLRenderingContext::pixelStorei(GLenum pname, GLint param)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - switch (pname) {
|
| - case GC3D_UNPACK_FLIP_Y_WEBGL:
|
| - m_unpackFlipY = param;
|
| - break;
|
| - case GC3D_UNPACK_PREMULTIPLY_ALPHA_WEBGL:
|
| - m_unpackPremultiplyAlpha = param;
|
| - break;
|
| - case GC3D_UNPACK_COLORSPACE_CONVERSION_WEBGL:
|
| - if (static_cast<GLenum>(param) == GC3D_BROWSER_DEFAULT_WEBGL || param == GL_NONE) {
|
| - m_unpackColorspaceConversion = static_cast<GLenum>(param);
|
| - } else {
|
| - synthesizeGLError(GL_INVALID_VALUE, "pixelStorei", "invalid parameter for UNPACK_COLORSPACE_CONVERSION_WEBGL");
|
| - return;
|
| - }
|
| - break;
|
| - case GL_PACK_ALIGNMENT:
|
| - case GL_UNPACK_ALIGNMENT:
|
| - if (param == 1 || param == 2 || param == 4 || param == 8) {
|
| - if (pname == GL_PACK_ALIGNMENT) {
|
| - m_packAlignment = param;
|
| - m_drawingBuffer->setPackAlignment(param);
|
| - } else { // GL_UNPACK_ALIGNMENT:
|
| - m_unpackAlignment = param;
|
| - }
|
| - m_context->pixelStorei(pname, param);
|
| - } else {
|
| - synthesizeGLError(GL_INVALID_VALUE, "pixelStorei", "invalid parameter for alignment");
|
| - return;
|
| - }
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "pixelStorei", "invalid parameter name");
|
| - return;
|
| - }
|
| -}
|
| -
|
| -void WebGLRenderingContext::polygonOffset(GLfloat factor, GLfloat units)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_context->polygonOffset(factor, units);
|
| -}
|
| -
|
| -void WebGLRenderingContext::readPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, ArrayBufferView* pixels)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - // Due to WebGL's same-origin restrictions, it is not possible to
|
| - // taint the origin using the WebGL API.
|
| - ASSERT(canvas()->originClean());
|
| - // Validate input parameters.
|
| - if (!pixels) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "readPixels", "no destination ArrayBufferView");
|
| - return;
|
| - }
|
| - switch (format) {
|
| - case GL_ALPHA:
|
| - case GL_RGB:
|
| - case GL_RGBA:
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "readPixels", "invalid format");
|
| - return;
|
| - }
|
| - switch (type) {
|
| - case GL_UNSIGNED_BYTE:
|
| - case GL_UNSIGNED_SHORT_5_6_5:
|
| - case GL_UNSIGNED_SHORT_4_4_4_4:
|
| - case GL_UNSIGNED_SHORT_5_5_5_1:
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "readPixels", "invalid type");
|
| - return;
|
| - }
|
| - if (format != GL_RGBA || type != GL_UNSIGNED_BYTE) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "readPixels", "format not RGBA or type not UNSIGNED_BYTE");
|
| - return;
|
| - }
|
| - // Validate array type against pixel type.
|
| - if (pixels->type() != ArrayBufferView::TypeUint8) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "readPixels", "ArrayBufferView not Uint8Array");
|
| - return;
|
| - }
|
| - const char* reason = "framebuffer incomplete";
|
| - if (m_framebufferBinding && !m_framebufferBinding->onAccess(m_context.get(), &reason)) {
|
| - synthesizeGLError(GL_INVALID_FRAMEBUFFER_OPERATION, "readPixels", reason);
|
| - return;
|
| - }
|
| - // Calculate array size, taking into consideration of PACK_ALIGNMENT.
|
| - unsigned totalBytesRequired = 0;
|
| - unsigned padding = 0;
|
| - GLenum error = WebGLImageConversion::computeImageSizeInBytes(format, type, width, height, m_packAlignment, &totalBytesRequired, &padding);
|
| - if (error != GL_NO_ERROR) {
|
| - synthesizeGLError(error, "readPixels", "invalid dimensions");
|
| - return;
|
| - }
|
| - if (pixels->byteLength() < totalBytesRequired) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "readPixels", "ArrayBufferView not large enough for dimensions");
|
| - return;
|
| - }
|
| -
|
| - clearIfComposited();
|
| - void* data = pixels->baseAddress();
|
| -
|
| - {
|
| - ScopedDrawingBufferBinder binder(m_drawingBuffer.get(), m_framebufferBinding.get());
|
| - m_context->readPixels(x, y, width, height, format, type, data);
|
| - }
|
| -
|
| -#if OS(MACOSX)
|
| - // FIXME: remove this section when GL driver bug on Mac is fixed, i.e.,
|
| - // when alpha is off, readPixels should set alpha to 255 instead of 0.
|
| - if (!m_framebufferBinding && !m_context->getContextAttributes().alpha) {
|
| - unsigned char* pixels = reinterpret_cast<unsigned char*>(data);
|
| - for (GLsizei iy = 0; iy < height; ++iy) {
|
| - for (GLsizei ix = 0; ix < width; ++ix) {
|
| - pixels[3] = 255;
|
| - pixels += 4;
|
| - }
|
| - pixels += padding;
|
| - }
|
| - }
|
| -#endif
|
| -}
|
| -
|
| -void WebGLRenderingContext::renderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (target != GL_RENDERBUFFER) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "renderbufferStorage", "invalid target");
|
| - return;
|
| - }
|
| - if (!m_renderbufferBinding || !m_renderbufferBinding->object()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "renderbufferStorage", "no bound renderbuffer");
|
| - return;
|
| - }
|
| - if (!validateSize("renderbufferStorage", width, height))
|
| - return;
|
| - switch (internalformat) {
|
| - case GL_DEPTH_COMPONENT16:
|
| - case GL_RGBA4:
|
| - case GL_RGB5_A1:
|
| - case GL_RGB565:
|
| - case GL_STENCIL_INDEX8:
|
| - m_context->renderbufferStorage(target, internalformat, width, height);
|
| - m_renderbufferBinding->setInternalFormat(internalformat);
|
| - m_renderbufferBinding->setSize(width, height);
|
| - m_renderbufferBinding->deleteEmulatedStencilBuffer(m_context.get());
|
| - break;
|
| - case GL_DEPTH_STENCIL_OES:
|
| - if (isDepthStencilSupported()) {
|
| - m_context->renderbufferStorage(target, GL_DEPTH24_STENCIL8_OES, width, height);
|
| - } else {
|
| - WebGLRenderbuffer* emulatedStencilBuffer = ensureEmulatedStencilBuffer(target, m_renderbufferBinding.get());
|
| - if (!emulatedStencilBuffer) {
|
| - synthesizeGLError(GL_OUT_OF_MEMORY, "renderbufferStorage", "out of memory");
|
| - return;
|
| - }
|
| - m_context->renderbufferStorage(target, GL_DEPTH_COMPONENT16, width, height);
|
| - m_context->bindRenderbuffer(target, objectOrZero(emulatedStencilBuffer));
|
| - m_context->renderbufferStorage(target, GL_STENCIL_INDEX8, width, height);
|
| - m_context->bindRenderbuffer(target, objectOrZero(m_renderbufferBinding.get()));
|
| - emulatedStencilBuffer->setSize(width, height);
|
| - emulatedStencilBuffer->setInternalFormat(GL_STENCIL_INDEX8);
|
| - }
|
| - m_renderbufferBinding->setSize(width, height);
|
| - m_renderbufferBinding->setInternalFormat(internalformat);
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "renderbufferStorage", "invalid internalformat");
|
| - return;
|
| - }
|
| - applyStencilTest();
|
| -}
|
| -
|
| -void WebGLRenderingContext::sampleCoverage(GLfloat value, GLboolean invert)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_context->sampleCoverage(value, invert);
|
| -}
|
| -
|
| -void WebGLRenderingContext::scissor(GLint x, GLint y, GLsizei width, GLsizei height)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (!validateSize("scissor", width, height))
|
| - return;
|
| - m_context->scissor(x, y, width, height);
|
| -}
|
| -
|
| -void WebGLRenderingContext::shaderSource(WebGLShader* shader, const String& string)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("shaderSource", shader))
|
| - return;
|
| - String stringWithoutComments = StripComments(string).result();
|
| - if (!validateString("shaderSource", stringWithoutComments))
|
| - return;
|
| - shader->setSource(string);
|
| - m_context->shaderSource(objectOrZero(shader), stringWithoutComments.utf8().data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::stencilFunc(GLenum func, GLint ref, GLuint mask)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (!validateStencilOrDepthFunc("stencilFunc", func))
|
| - return;
|
| - m_stencilFuncRef = ref;
|
| - m_stencilFuncRefBack = ref;
|
| - m_stencilFuncMask = mask;
|
| - m_stencilFuncMaskBack = mask;
|
| - m_context->stencilFunc(func, ref, mask);
|
| -}
|
| -
|
| -void WebGLRenderingContext::stencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (!validateStencilOrDepthFunc("stencilFuncSeparate", func))
|
| - return;
|
| - switch (face) {
|
| - case GL_FRONT_AND_BACK:
|
| - m_stencilFuncRef = ref;
|
| - m_stencilFuncRefBack = ref;
|
| - m_stencilFuncMask = mask;
|
| - m_stencilFuncMaskBack = mask;
|
| - break;
|
| - case GL_FRONT:
|
| - m_stencilFuncRef = ref;
|
| - m_stencilFuncMask = mask;
|
| - break;
|
| - case GL_BACK:
|
| - m_stencilFuncRefBack = ref;
|
| - m_stencilFuncMaskBack = mask;
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "stencilFuncSeparate", "invalid face");
|
| - return;
|
| - }
|
| - m_context->stencilFuncSeparate(face, func, ref, mask);
|
| -}
|
| -
|
| -void WebGLRenderingContext::stencilMask(GLuint mask)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_stencilMask = mask;
|
| - m_stencilMaskBack = mask;
|
| - m_context->stencilMask(mask);
|
| -}
|
| -
|
| -void WebGLRenderingContext::stencilMaskSeparate(GLenum face, GLuint mask)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - switch (face) {
|
| - case GL_FRONT_AND_BACK:
|
| - m_stencilMask = mask;
|
| - m_stencilMaskBack = mask;
|
| - break;
|
| - case GL_FRONT:
|
| - m_stencilMask = mask;
|
| - break;
|
| - case GL_BACK:
|
| - m_stencilMaskBack = mask;
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "stencilMaskSeparate", "invalid face");
|
| - return;
|
| - }
|
| - m_context->stencilMaskSeparate(face, mask);
|
| -}
|
| -
|
| -void WebGLRenderingContext::stencilOp(GLenum fail, GLenum zfail, GLenum zpass)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_context->stencilOp(fail, zfail, zpass);
|
| -}
|
| -
|
| -void WebGLRenderingContext::stencilOpSeparate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - m_context->stencilOpSeparate(face, fail, zfail, zpass);
|
| -}
|
| -
|
| -GLenum WebGLRenderingContext::convertTexInternalFormat(GLenum internalformat, GLenum type)
|
| -{
|
| - // Convert to sized internal formats that are renderable with GL_CHROMIUM_color_buffer_float_rgb(a).
|
| - if (type == GL_FLOAT && internalformat == GL_RGBA
|
| - && extensionsUtil()->isExtensionEnabled("GL_CHROMIUM_color_buffer_float_rgba"))
|
| - return GL_RGBA32F_EXT;
|
| - if (type == GL_FLOAT && internalformat == GL_RGB
|
| - && extensionsUtil()->isExtensionEnabled("GL_CHROMIUM_color_buffer_float_rgb"))
|
| - return GL_RGB32F_EXT;
|
| - return internalformat;
|
| -}
|
| -
|
| -void WebGLRenderingContext::texImage2DBase(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void* pixels, ExceptionState& exceptionState)
|
| -{
|
| - // All calling functions check isContextLost, so a duplicate check is not needed here.
|
| - // FIXME: Handle errors.
|
| - WebGLTexture* tex = validateTextureBinding("texImage2D", target, true);
|
| - ASSERT(validateTexFuncParameters("texImage2D", NotTexSubImage2D, target, level, internalformat, width, height, border, format, type));
|
| - ASSERT(tex);
|
| - ASSERT(!level || !WebGLTexture::isNPOT(width, height));
|
| - ASSERT(!pixels || validateSettableTexFormat("texImage2D", internalformat));
|
| - m_context->texImage2D(target, level, convertTexInternalFormat(internalformat, type), width, height, border, format, type, pixels);
|
| - tex->setLevelInfo(target, level, internalformat, width, height, type);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texImage2DImpl(GLenum target, GLint level, GLenum internalformat, GLenum format, GLenum type, Image* image, WebGLImageConversion::ImageHtmlDomSource domSource, bool flipY, bool premultiplyAlpha, ExceptionState& exceptionState)
|
| -{
|
| - // All calling functions check isContextLost, so a duplicate check is not needed here.
|
| - Vector<uint8_t> data;
|
| - WebGLImageConversion::ImageExtractor imageExtractor(image, domSource, premultiplyAlpha, m_unpackColorspaceConversion == GL_NONE);
|
| - if (!imageExtractor.extractSucceeded()) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "texImage2D", "bad image data");
|
| - return;
|
| - }
|
| - WebGLImageConversion::DataFormat sourceDataFormat = imageExtractor.imageSourceFormat();
|
| - WebGLImageConversion::AlphaOp alphaOp = imageExtractor.imageAlphaOp();
|
| - const void* imagePixelData = imageExtractor.imagePixelData();
|
| -
|
| - bool needConversion = true;
|
| - if (type == GL_UNSIGNED_BYTE && sourceDataFormat == WebGLImageConversion::DataFormatRGBA8 && format == GL_RGBA && alphaOp == WebGLImageConversion::AlphaDoNothing && !flipY)
|
| - needConversion = false;
|
| - else {
|
| - if (!WebGLImageConversion::packImageData(image, imagePixelData, format, type, flipY, alphaOp, sourceDataFormat, imageExtractor.imageWidth(), imageExtractor.imageHeight(), imageExtractor.imageSourceUnpackAlignment(), data)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "texImage2D", "packImage error");
|
| - return;
|
| - }
|
| - }
|
| -
|
| - if (m_unpackAlignment != 1)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
| - texImage2DBase(target, level, internalformat, image->width(), image->height(), 0, format, type, needConversion ? data.data() : imagePixelData, exceptionState);
|
| - if (m_unpackAlignment != 1)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, m_unpackAlignment);
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateTexFunc(const char* functionName, TexFuncValidationFunctionType functionType, TexFuncValidationSourceType sourceType, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, GLint xoffset, GLint yoffset)
|
| -{
|
| - if (!validateTexFuncParameters(functionName, functionType, target, level, internalformat, width, height, border, format, type))
|
| - return false;
|
| -
|
| - WebGLTexture* texture = validateTextureBinding(functionName, target, true);
|
| - if (!texture)
|
| - return false;
|
| -
|
| - if (functionType == NotTexSubImage2D) {
|
| - if (level && WebGLTexture::isNPOT(width, height)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "level > 0 not power of 2");
|
| - return false;
|
| - }
|
| - // For SourceArrayBufferView, function validateTexFuncData() would handle whether to validate the SettableTexFormat
|
| - // by checking if the ArrayBufferView is null or not.
|
| - if (sourceType != SourceArrayBufferView) {
|
| - if (!validateSettableTexFormat(functionName, format))
|
| - return false;
|
| - }
|
| - } else {
|
| - if (!validateSettableTexFormat(functionName, format))
|
| - return false;
|
| - if (!validateSize(functionName, xoffset, yoffset))
|
| - return false;
|
| - // Before checking if it is in the range, check if overflow happens first.
|
| - if (xoffset + width < 0 || yoffset + height < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "bad dimensions");
|
| - return false;
|
| - }
|
| - if (xoffset + width > texture->getWidth(target, level) || yoffset + height > texture->getHeight(target, level)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "dimensions out of range");
|
| - return false;
|
| - }
|
| - if (texture->getInternalFormat(target, level) != format || texture->getType(target, level) != type) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "type and format do not match texture");
|
| - return false;
|
| - }
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -PassRefPtr<Image> WebGLRenderingContext::drawImageIntoBuffer(Image* image, int width, int height)
|
| -{
|
| - IntSize size(width, height);
|
| - ImageBuffer* buf = m_generatedImageCache.imageBuffer(size);
|
| - if (!buf) {
|
| - synthesizeGLError(GL_OUT_OF_MEMORY, "texImage2D", "out of memory");
|
| - return nullptr;
|
| - }
|
| -
|
| - IntRect srcRect(IntPoint(), image->size());
|
| - IntRect destRect(0, 0, size.width(), size.height());
|
| - buf->context()->drawImage(image, destRect, srcRect);
|
| - return buf->copyImage(ImageBuffer::fastCopyImageMode());
|
| -}
|
| -
|
| -void WebGLRenderingContext::texImage2D(GLenum target, GLint level, GLenum internalformat,
|
| - GLsizei width, GLsizei height, GLint border,
|
| - GLenum format, GLenum type, ArrayBufferView* pixels, ExceptionState& exceptionState)
|
| -{
|
| - if (isContextLost() || !validateTexFuncData("texImage2D", level, width, height, format, type, pixels, NullAllowed)
|
| - || !validateTexFunc("texImage2D", NotTexSubImage2D, SourceArrayBufferView, target, level, internalformat, width, height, border, format, type, 0, 0))
|
| - return;
|
| - void* data = pixels ? pixels->baseAddress() : 0;
|
| - Vector<uint8_t> tempData;
|
| - bool changeUnpackAlignment = false;
|
| - if (data && (m_unpackFlipY || m_unpackPremultiplyAlpha)) {
|
| - if (!WebGLImageConversion::extractTextureData(width, height, format, type, m_unpackAlignment, m_unpackFlipY, m_unpackPremultiplyAlpha, data, tempData))
|
| - return;
|
| - data = tempData.data();
|
| - changeUnpackAlignment = true;
|
| - }
|
| - if (changeUnpackAlignment)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
| - texImage2DBase(target, level, internalformat, width, height, border, format, type, data, exceptionState);
|
| - if (changeUnpackAlignment)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, m_unpackAlignment);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texImage2D(GLenum target, GLint level, GLenum internalformat,
|
| - GLenum format, GLenum type, ImageData* pixels, ExceptionState& exceptionState)
|
| -{
|
| - if (isContextLost() || !pixels || !validateTexFunc("texImage2D", NotTexSubImage2D, SourceImageData, target, level, internalformat, pixels->width(), pixels->height(), 0, format, type, 0, 0))
|
| - return;
|
| - Vector<uint8_t> data;
|
| - bool needConversion = true;
|
| - // The data from ImageData is always of format RGBA8.
|
| - // No conversion is needed if destination format is RGBA and type is USIGNED_BYTE and no Flip or Premultiply operation is required.
|
| - if (!m_unpackFlipY && !m_unpackPremultiplyAlpha && format == GL_RGBA && type == GL_UNSIGNED_BYTE)
|
| - needConversion = false;
|
| - else {
|
| - if (!WebGLImageConversion::extractImageData(pixels->data()->data(), pixels->size(), format, type, m_unpackFlipY, m_unpackPremultiplyAlpha, data)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "texImage2D", "bad image data");
|
| - return;
|
| - }
|
| - }
|
| - if (m_unpackAlignment != 1)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
| - texImage2DBase(target, level, internalformat, pixels->width(), pixels->height(), 0, format, type, needConversion ? data.data() : pixels->data()->data(), exceptionState);
|
| - if (m_unpackAlignment != 1)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, m_unpackAlignment);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texImage2D(GLenum target, GLint level, GLenum internalformat,
|
| - GLenum format, GLenum type, HTMLImageElement* image, ExceptionState& exceptionState)
|
| -{
|
| - if (isContextLost() || !validateHTMLImageElement("texImage2D", image, exceptionState))
|
| - return;
|
| -
|
| - RefPtr<Image> imageForRender = image->cachedImage()->imageForRenderer(image->renderer());
|
| - if (imageForRender->isSVGImage())
|
| - imageForRender = drawImageIntoBuffer(imageForRender.get(), image->width(), image->height());
|
| -
|
| - if (!imageForRender || !validateTexFunc("texImage2D", NotTexSubImage2D, SourceHTMLImageElement, target, level, internalformat, imageForRender->width(), imageForRender->height(), 0, format, type, 0, 0))
|
| - return;
|
| -
|
| - texImage2DImpl(target, level, internalformat, format, type, imageForRender.get(), WebGLImageConversion::HtmlDomImage, m_unpackFlipY, m_unpackPremultiplyAlpha, exceptionState);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texImage2D(GLenum target, GLint level, GLenum internalformat,
|
| - GLenum format, GLenum type, HTMLCanvasElement* canvas, ExceptionState& exceptionState)
|
| -{
|
| - if (isContextLost() || !validateHTMLCanvasElement("texImage2D", canvas, exceptionState) || !validateTexFunc("texImage2D", NotTexSubImage2D, SourceHTMLCanvasElement, target, level, internalformat, canvas->width(), canvas->height(), 0, format, type, 0, 0))
|
| - return;
|
| -
|
| - WebGLTexture* texture = validateTextureBinding("texImage2D", target, true);
|
| - // If possible, copy from the canvas element directly to the texture
|
| - // via the GPU, without a read-back to system memory.
|
| - if (GL_TEXTURE_2D == target && texture) {
|
| - if (!canvas->is3D()) {
|
| - ImageBuffer* buffer = canvas->buffer();
|
| - if (buffer && buffer->copyToPlatformTexture(m_context.get(), texture->object(), internalformat, type,
|
| - level, m_unpackPremultiplyAlpha, m_unpackFlipY)) {
|
| - texture->setLevelInfo(target, level, internalformat, canvas->width(), canvas->height(), type);
|
| - return;
|
| - }
|
| - } else {
|
| - WebGLRenderingContext* gl = toWebGLRenderingContext(canvas->renderingContext());
|
| - if (gl && gl->m_drawingBuffer->copyToPlatformTexture(m_context.get(), texture->object(), internalformat, type,
|
| - level, m_unpackPremultiplyAlpha, m_unpackFlipY)) {
|
| - texture->setLevelInfo(target, level, internalformat, canvas->width(), canvas->height(), type);
|
| - return;
|
| - }
|
| - }
|
| - }
|
| -
|
| - RefPtr<ImageData> imageData = canvas->getImageData();
|
| - if (imageData)
|
| - texImage2D(target, level, internalformat, format, type, imageData.get(), exceptionState);
|
| - else
|
| - texImage2DImpl(target, level, internalformat, format, type, canvas->copiedImage(), WebGLImageConversion::HtmlDomCanvas, m_unpackFlipY, m_unpackPremultiplyAlpha, exceptionState);
|
| -}
|
| -
|
| -PassRefPtr<Image> WebGLRenderingContext::videoFrameToImage(HTMLVideoElement* video, BackingStoreCopy backingStoreCopy)
|
| -{
|
| - IntSize size(video->videoWidth(), video->videoHeight());
|
| - ImageBuffer* buf = m_generatedImageCache.imageBuffer(size);
|
| - if (!buf) {
|
| - synthesizeGLError(GL_OUT_OF_MEMORY, "texImage2D", "out of memory");
|
| - return nullptr;
|
| - }
|
| - IntRect destRect(0, 0, size.width(), size.height());
|
| - // FIXME: Turn this into a GPU-GPU texture copy instead of CPU readback.
|
| - video->paintCurrentFrameInContext(buf->context(), destRect);
|
| - return buf->copyImage(backingStoreCopy);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texImage2D(GLenum target, GLint level, GLenum internalformat,
|
| - GLenum format, GLenum type, HTMLVideoElement* video, ExceptionState& exceptionState)
|
| -{
|
| - if (isContextLost() || !validateHTMLVideoElement("texImage2D", video, exceptionState)
|
| - || !validateTexFunc("texImage2D", NotTexSubImage2D, SourceHTMLVideoElement, target, level, internalformat, video->videoWidth(), video->videoHeight(), 0, format, type, 0, 0))
|
| - return;
|
| -
|
| - // Go through the fast path doing a GPU-GPU textures copy without a readback to system memory if possible.
|
| - // Otherwise, it will fall back to the normal SW path.
|
| - WebGLTexture* texture = validateTextureBinding("texImage2D", target, true);
|
| - if (GL_TEXTURE_2D == target && texture) {
|
| - if (video->copyVideoTextureToPlatformTexture(m_context.get(), texture->object(), level, type, internalformat, m_unpackPremultiplyAlpha, m_unpackFlipY)) {
|
| - texture->setLevelInfo(target, level, internalformat, video->videoWidth(), video->videoHeight(), type);
|
| - return;
|
| - }
|
| - }
|
| -
|
| - // Normal pure SW path.
|
| - RefPtr<Image> image = videoFrameToImage(video, ImageBuffer::fastCopyImageMode());
|
| - if (!image)
|
| - return;
|
| - texImage2DImpl(target, level, internalformat, format, type, image.get(), WebGLImageConversion::HtmlDomVideo, m_unpackFlipY, m_unpackPremultiplyAlpha, exceptionState);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texParameter(GLenum target, GLenum pname, GLfloat paramf, GLint parami, bool isFloat)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - WebGLTexture* tex = validateTextureBinding("texParameter", target, false);
|
| - if (!tex)
|
| - return;
|
| - switch (pname) {
|
| - case GL_TEXTURE_MIN_FILTER:
|
| - case GL_TEXTURE_MAG_FILTER:
|
| - break;
|
| - case GL_TEXTURE_WRAP_S:
|
| - case GL_TEXTURE_WRAP_T:
|
| - if ((isFloat && paramf != GL_CLAMP_TO_EDGE && paramf != GL_MIRRORED_REPEAT && paramf != GL_REPEAT)
|
| - || (!isFloat && parami != GL_CLAMP_TO_EDGE && parami != GL_MIRRORED_REPEAT && parami != GL_REPEAT)) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "texParameter", "invalid parameter");
|
| - return;
|
| - }
|
| - break;
|
| - case GL_TEXTURE_MAX_ANISOTROPY_EXT: // EXT_texture_filter_anisotropic
|
| - if (!m_extTextureFilterAnisotropic) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "texParameter", "invalid parameter, EXT_texture_filter_anisotropic not enabled");
|
| - return;
|
| - }
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "texParameter", "invalid parameter name");
|
| - return;
|
| - }
|
| - if (isFloat) {
|
| - tex->setParameterf(pname, paramf);
|
| - m_context->texParameterf(target, pname, paramf);
|
| - } else {
|
| - tex->setParameteri(pname, parami);
|
| - m_context->texParameteri(target, pname, parami);
|
| - }
|
| -}
|
| -
|
| -void WebGLRenderingContext::texParameterf(GLenum target, GLenum pname, GLfloat param)
|
| -{
|
| - texParameter(target, pname, param, 0, true);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texParameteri(GLenum target, GLenum pname, GLint param)
|
| -{
|
| - texParameter(target, pname, 0, param, false);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texSubImage2DBase(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void* pixels, ExceptionState& exceptionState)
|
| -{
|
| - // FIXME: Handle errors.
|
| - ASSERT(!isContextLost());
|
| - ASSERT(validateTexFuncParameters("texSubImage2D", TexSubImage2D, target, level, format, width, height, 0, format, type));
|
| - ASSERT(validateSize("texSubImage2D", xoffset, yoffset));
|
| - ASSERT(validateSettableTexFormat("texSubImage2D", format));
|
| - WebGLTexture* tex = validateTextureBinding("texSubImage2D", target, true);
|
| - if (!tex) {
|
| - ASSERT_NOT_REACHED();
|
| - return;
|
| - }
|
| - ASSERT((xoffset + width) >= 0);
|
| - ASSERT((yoffset + height) >= 0);
|
| - ASSERT(tex->getWidth(target, level) >= (xoffset + width));
|
| - ASSERT(tex->getHeight(target, level) >= (yoffset + height));
|
| - ASSERT(tex->getInternalFormat(target, level) == format);
|
| - ASSERT(tex->getType(target, level) == type);
|
| - m_context->texSubImage2D(target, level, xoffset, yoffset, width, height, format, type, pixels);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texSubImage2DImpl(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLenum format, GLenum type, Image* image, WebGLImageConversion::ImageHtmlDomSource domSource, bool flipY, bool premultiplyAlpha, ExceptionState& exceptionState)
|
| -{
|
| - // All calling functions check isContextLost, so a duplicate check is not needed here.
|
| - Vector<uint8_t> data;
|
| - WebGLImageConversion::ImageExtractor imageExtractor(image, domSource, premultiplyAlpha, m_unpackColorspaceConversion == GL_NONE);
|
| - if (!imageExtractor.extractSucceeded()) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "texSubImage2D", "bad image");
|
| - return;
|
| - }
|
| - WebGLImageConversion::DataFormat sourceDataFormat = imageExtractor.imageSourceFormat();
|
| - WebGLImageConversion::AlphaOp alphaOp = imageExtractor.imageAlphaOp();
|
| - const void* imagePixelData = imageExtractor.imagePixelData();
|
| -
|
| - bool needConversion = true;
|
| - if (type == GL_UNSIGNED_BYTE && sourceDataFormat == WebGLImageConversion::DataFormatRGBA8 && format == GL_RGBA && alphaOp == WebGLImageConversion::AlphaDoNothing && !flipY)
|
| - needConversion = false;
|
| - else {
|
| - if (!WebGLImageConversion::packImageData(image, imagePixelData, format, type, flipY, alphaOp, sourceDataFormat, imageExtractor.imageWidth(), imageExtractor.imageHeight(), imageExtractor.imageSourceUnpackAlignment(), data)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "texImage2D", "bad image data");
|
| - return;
|
| - }
|
| - }
|
| -
|
| - if (m_unpackAlignment != 1)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
| - texSubImage2DBase(target, level, xoffset, yoffset, image->width(), image->height(), format, type, needConversion ? data.data() : imagePixelData, exceptionState);
|
| - if (m_unpackAlignment != 1)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, m_unpackAlignment);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
|
| - GLsizei width, GLsizei height,
|
| - GLenum format, GLenum type, ArrayBufferView* pixels, ExceptionState& exceptionState)
|
| -{
|
| - if (isContextLost() || !validateTexFuncData("texSubImage2D", level, width, height, format, type, pixels, NullNotAllowed)
|
| - || !validateTexFunc("texSubImage2D", TexSubImage2D, SourceArrayBufferView, target, level, format, width, height, 0, format, type, xoffset, yoffset))
|
| - return;
|
| - void* data = pixels->baseAddress();
|
| - Vector<uint8_t> tempData;
|
| - bool changeUnpackAlignment = false;
|
| - if (data && (m_unpackFlipY || m_unpackPremultiplyAlpha)) {
|
| - if (!WebGLImageConversion::extractTextureData(width, height, format, type,
|
| - m_unpackAlignment,
|
| - m_unpackFlipY, m_unpackPremultiplyAlpha,
|
| - data,
|
| - tempData))
|
| - return;
|
| - data = tempData.data();
|
| - changeUnpackAlignment = true;
|
| - }
|
| - if (changeUnpackAlignment)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
| - texSubImage2DBase(target, level, xoffset, yoffset, width, height, format, type, data, exceptionState);
|
| - if (changeUnpackAlignment)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, m_unpackAlignment);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
|
| - GLenum format, GLenum type, ImageData* pixels, ExceptionState& exceptionState)
|
| -{
|
| - if (isContextLost() || !pixels || !validateTexFunc("texSubImage2D", TexSubImage2D, SourceImageData, target, level, format, pixels->width(), pixels->height(), 0, format, type, xoffset, yoffset))
|
| - return;
|
| -
|
| - Vector<uint8_t> data;
|
| - bool needConversion = true;
|
| - // The data from ImageData is always of format RGBA8.
|
| - // No conversion is needed if destination format is RGBA and type is USIGNED_BYTE and no Flip or Premultiply operation is required.
|
| - if (format == GL_RGBA && type == GL_UNSIGNED_BYTE && !m_unpackFlipY && !m_unpackPremultiplyAlpha)
|
| - needConversion = false;
|
| - else {
|
| - if (!WebGLImageConversion::extractImageData(pixels->data()->data(), pixels->size(), format, type, m_unpackFlipY, m_unpackPremultiplyAlpha, data)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "texSubImage2D", "bad image data");
|
| - return;
|
| - }
|
| - }
|
| - if (m_unpackAlignment != 1)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
| - texSubImage2DBase(target, level, xoffset, yoffset, pixels->width(), pixels->height(), format, type, needConversion ? data.data() : pixels->data()->data(), exceptionState);
|
| - if (m_unpackAlignment != 1)
|
| - m_context->pixelStorei(GL_UNPACK_ALIGNMENT, m_unpackAlignment);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
|
| - GLenum format, GLenum type, HTMLImageElement* image, ExceptionState& exceptionState)
|
| -{
|
| - if (isContextLost() || !validateHTMLImageElement("texSubImage2D", image, exceptionState))
|
| - return;
|
| -
|
| - RefPtr<Image> imageForRender = image->cachedImage()->imageForRenderer(image->renderer());
|
| - if (imageForRender->isSVGImage())
|
| - imageForRender = drawImageIntoBuffer(imageForRender.get(), image->width(), image->height());
|
| -
|
| - if (!imageForRender || !validateTexFunc("texSubImage2D", TexSubImage2D, SourceHTMLImageElement, target, level, format, imageForRender->width(), imageForRender->height(), 0, format, type, xoffset, yoffset))
|
| - return;
|
| -
|
| - texSubImage2DImpl(target, level, xoffset, yoffset, format, type, imageForRender.get(), WebGLImageConversion::HtmlDomImage, m_unpackFlipY, m_unpackPremultiplyAlpha, exceptionState);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
|
| - GLenum format, GLenum type, HTMLCanvasElement* canvas, ExceptionState& exceptionState)
|
| -{
|
| - if (isContextLost() || !validateHTMLCanvasElement("texSubImage2D", canvas, exceptionState)
|
| - || !validateTexFunc("texSubImage2D", TexSubImage2D, SourceHTMLCanvasElement, target, level, format, canvas->width(), canvas->height(), 0, format, type, xoffset, yoffset))
|
| - return;
|
| -
|
| - RefPtr<ImageData> imageData = canvas->getImageData();
|
| - if (imageData)
|
| - texSubImage2D(target, level, xoffset, yoffset, format, type, imageData.get(), exceptionState);
|
| - else
|
| - texSubImage2DImpl(target, level, xoffset, yoffset, format, type, canvas->copiedImage(), WebGLImageConversion::HtmlDomCanvas, m_unpackFlipY, m_unpackPremultiplyAlpha, exceptionState);
|
| -}
|
| -
|
| -void WebGLRenderingContext::texSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
|
| - GLenum format, GLenum type, HTMLVideoElement* video, ExceptionState& exceptionState)
|
| -{
|
| - if (isContextLost() || !validateHTMLVideoElement("texSubImage2D", video, exceptionState)
|
| - || !validateTexFunc("texSubImage2D", TexSubImage2D, SourceHTMLVideoElement, target, level, format, video->videoWidth(), video->videoHeight(), 0, format, type, xoffset, yoffset))
|
| - return;
|
| -
|
| - RefPtr<Image> image = videoFrameToImage(video, ImageBuffer::fastCopyImageMode());
|
| - if (!image)
|
| - return;
|
| - texSubImage2DImpl(target, level, xoffset, yoffset, format, type, image.get(), WebGLImageConversion::HtmlDomVideo, m_unpackFlipY, m_unpackPremultiplyAlpha, exceptionState);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform1f(const WebGLUniformLocation* location, GLfloat x)
|
| -{
|
| - if (isContextLost() || !location)
|
| - return;
|
| -
|
| - if (location->program() != m_currentProgram) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "uniform1f", "location not for current program");
|
| - return;
|
| - }
|
| -
|
| - m_context->uniform1f(location->location(), x);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform1fv(const WebGLUniformLocation* location, Float32Array* v)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform1fv", location, v, 1))
|
| - return;
|
| -
|
| - m_context->uniform1fv(location->location(), v->length(), v->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform1fv(const WebGLUniformLocation* location, GLfloat* v, GLsizei size)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform1fv", location, v, size, 1))
|
| - return;
|
| -
|
| - m_context->uniform1fv(location->location(), size, v);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform1i(const WebGLUniformLocation* location, GLint x)
|
| -{
|
| - if (isContextLost() || !location)
|
| - return;
|
| -
|
| - if (location->program() != m_currentProgram) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "uniform1i", "location not for current program");
|
| - return;
|
| - }
|
| -
|
| - m_context->uniform1i(location->location(), x);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform1iv(const WebGLUniformLocation* location, Int32Array* v)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform1iv", location, v, 1))
|
| - return;
|
| -
|
| - m_context->uniform1iv(location->location(), v->length(), v->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform1iv(const WebGLUniformLocation* location, GLint* v, GLsizei size)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform1iv", location, v, size, 1))
|
| - return;
|
| -
|
| - m_context->uniform1iv(location->location(), size, v);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform2f(const WebGLUniformLocation* location, GLfloat x, GLfloat y)
|
| -{
|
| - if (isContextLost() || !location)
|
| - return;
|
| -
|
| - if (location->program() != m_currentProgram) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "uniform2f", "location not for current program");
|
| - return;
|
| - }
|
| -
|
| - m_context->uniform2f(location->location(), x, y);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform2fv(const WebGLUniformLocation* location, Float32Array* v)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform2fv", location, v, 2))
|
| - return;
|
| -
|
| - m_context->uniform2fv(location->location(), v->length() / 2, v->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform2fv(const WebGLUniformLocation* location, GLfloat* v, GLsizei size)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform2fv", location, v, size, 2))
|
| - return;
|
| -
|
| - m_context->uniform2fv(location->location(), size / 2, v);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform2i(const WebGLUniformLocation* location, GLint x, GLint y)
|
| -{
|
| - if (isContextLost() || !location)
|
| - return;
|
| -
|
| - if (location->program() != m_currentProgram) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "uniform2i", "location not for current program");
|
| - return;
|
| - }
|
| -
|
| - m_context->uniform2i(location->location(), x, y);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform2iv(const WebGLUniformLocation* location, Int32Array* v)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform2iv", location, v, 2))
|
| - return;
|
| -
|
| - m_context->uniform2iv(location->location(), v->length() / 2, v->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform2iv(const WebGLUniformLocation* location, GLint* v, GLsizei size)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform2iv", location, v, size, 2))
|
| - return;
|
| -
|
| - m_context->uniform2iv(location->location(), size / 2, v);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform3f(const WebGLUniformLocation* location, GLfloat x, GLfloat y, GLfloat z)
|
| -{
|
| - if (isContextLost() || !location)
|
| - return;
|
| -
|
| - if (location->program() != m_currentProgram) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "uniform3f", "location not for current program");
|
| - return;
|
| - }
|
| -
|
| - m_context->uniform3f(location->location(), x, y, z);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform3fv(const WebGLUniformLocation* location, Float32Array* v)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform3fv", location, v, 3))
|
| - return;
|
| -
|
| - m_context->uniform3fv(location->location(), v->length() / 3, v->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform3fv(const WebGLUniformLocation* location, GLfloat* v, GLsizei size)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform3fv", location, v, size, 3))
|
| - return;
|
| -
|
| - m_context->uniform3fv(location->location(), size / 3, v);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform3i(const WebGLUniformLocation* location, GLint x, GLint y, GLint z)
|
| -{
|
| - if (isContextLost() || !location)
|
| - return;
|
| -
|
| - if (location->program() != m_currentProgram) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "uniform3i", "location not for current program");
|
| - return;
|
| - }
|
| -
|
| - m_context->uniform3i(location->location(), x, y, z);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform3iv(const WebGLUniformLocation* location, Int32Array* v)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform3iv", location, v, 3))
|
| - return;
|
| -
|
| - m_context->uniform3iv(location->location(), v->length() / 3, v->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform3iv(const WebGLUniformLocation* location, GLint* v, GLsizei size)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform3iv", location, v, size, 3))
|
| - return;
|
| -
|
| - m_context->uniform3iv(location->location(), size / 3, v);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform4f(const WebGLUniformLocation* location, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
|
| -{
|
| - if (isContextLost() || !location)
|
| - return;
|
| -
|
| - if (location->program() != m_currentProgram) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "uniform4f", "location not for current program");
|
| - return;
|
| - }
|
| -
|
| - m_context->uniform4f(location->location(), x, y, z, w);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform4fv(const WebGLUniformLocation* location, Float32Array* v)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform4fv", location, v, 4))
|
| - return;
|
| -
|
| - m_context->uniform4fv(location->location(), v->length() / 4, v->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform4fv(const WebGLUniformLocation* location, GLfloat* v, GLsizei size)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform4fv", location, v, size, 4))
|
| - return;
|
| -
|
| - m_context->uniform4fv(location->location(), size / 4, v);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform4i(const WebGLUniformLocation* location, GLint x, GLint y, GLint z, GLint w)
|
| -{
|
| - if (isContextLost() || !location)
|
| - return;
|
| -
|
| - if (location->program() != m_currentProgram) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "uniform4i", "location not for current program");
|
| - return;
|
| - }
|
| -
|
| - m_context->uniform4i(location->location(), x, y, z, w);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform4iv(const WebGLUniformLocation* location, Int32Array* v)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform4iv", location, v, 4))
|
| - return;
|
| -
|
| - m_context->uniform4iv(location->location(), v->length() / 4, v->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniform4iv(const WebGLUniformLocation* location, GLint* v, GLsizei size)
|
| -{
|
| - if (isContextLost() || !validateUniformParameters("uniform4iv", location, v, size, 4))
|
| - return;
|
| -
|
| - m_context->uniform4iv(location->location(), size / 4, v);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniformMatrix2fv(const WebGLUniformLocation* location, GLboolean transpose, Float32Array* v)
|
| -{
|
| - if (isContextLost() || !validateUniformMatrixParameters("uniformMatrix2fv", location, transpose, v, 4))
|
| - return;
|
| - m_context->uniformMatrix2fv(location->location(), v->length() / 4, transpose, v->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniformMatrix2fv(const WebGLUniformLocation* location, GLboolean transpose, GLfloat* v, GLsizei size)
|
| -{
|
| - if (isContextLost() || !validateUniformMatrixParameters("uniformMatrix2fv", location, transpose, v, size, 4))
|
| - return;
|
| - m_context->uniformMatrix2fv(location->location(), size / 4, transpose, v);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniformMatrix3fv(const WebGLUniformLocation* location, GLboolean transpose, Float32Array* v)
|
| -{
|
| - if (isContextLost() || !validateUniformMatrixParameters("uniformMatrix3fv", location, transpose, v, 9))
|
| - return;
|
| - m_context->uniformMatrix3fv(location->location(), v->length() / 9, transpose, v->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniformMatrix3fv(const WebGLUniformLocation* location, GLboolean transpose, GLfloat* v, GLsizei size)
|
| -{
|
| - if (isContextLost() || !validateUniformMatrixParameters("uniformMatrix3fv", location, transpose, v, size, 9))
|
| - return;
|
| - m_context->uniformMatrix3fv(location->location(), size / 9, transpose, v);
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniformMatrix4fv(const WebGLUniformLocation* location, GLboolean transpose, Float32Array* v)
|
| -{
|
| - if (isContextLost() || !validateUniformMatrixParameters("uniformMatrix4fv", location, transpose, v, 16))
|
| - return;
|
| - m_context->uniformMatrix4fv(location->location(), v->length() / 16, transpose, v->data());
|
| -}
|
| -
|
| -void WebGLRenderingContext::uniformMatrix4fv(const WebGLUniformLocation* location, GLboolean transpose, GLfloat* v, GLsizei size)
|
| -{
|
| - if (isContextLost() || !validateUniformMatrixParameters("uniformMatrix4fv", location, transpose, v, size, 16))
|
| - return;
|
| - m_context->uniformMatrix4fv(location->location(), size / 16, transpose, v);
|
| -}
|
| -
|
| -void WebGLRenderingContext::useProgram(WebGLProgram* program)
|
| -{
|
| - bool deleted;
|
| - if (!checkObjectToBeBound("useProgram", program, deleted))
|
| - return;
|
| - if (deleted)
|
| - program = 0;
|
| - if (program && !program->linkStatus()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "useProgram", "program not valid");
|
| - return;
|
| - }
|
| - if (m_currentProgram != program) {
|
| - if (m_currentProgram)
|
| - m_currentProgram->onDetached(m_context.get());
|
| - m_currentProgram = program;
|
| - m_context->useProgram(objectOrZero(program));
|
| - if (program)
|
| - program->onAttached();
|
| - }
|
| -}
|
| -
|
| -void WebGLRenderingContext::validateProgram(WebGLProgram* program)
|
| -{
|
| - if (isContextLost() || !validateWebGLObject("validateProgram", program))
|
| - return;
|
| - m_context->validateProgram(objectOrZero(program));
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib1f(GLuint index, GLfloat v0)
|
| -{
|
| - vertexAttribfImpl("vertexAttrib1f", index, 1, v0, 0.0f, 0.0f, 1.0f);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib1fv(GLuint index, Float32Array* v)
|
| -{
|
| - vertexAttribfvImpl("vertexAttrib1fv", index, v, 1);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib1fv(GLuint index, GLfloat* v, GLsizei size)
|
| -{
|
| - vertexAttribfvImpl("vertexAttrib1fv", index, v, size, 1);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib2f(GLuint index, GLfloat v0, GLfloat v1)
|
| -{
|
| - vertexAttribfImpl("vertexAttrib2f", index, 2, v0, v1, 0.0f, 1.0f);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib2fv(GLuint index, Float32Array* v)
|
| -{
|
| - vertexAttribfvImpl("vertexAttrib2fv", index, v, 2);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib2fv(GLuint index, GLfloat* v, GLsizei size)
|
| -{
|
| - vertexAttribfvImpl("vertexAttrib2fv", index, v, size, 2);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib3f(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2)
|
| -{
|
| - vertexAttribfImpl("vertexAttrib3f", index, 3, v0, v1, v2, 1.0f);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib3fv(GLuint index, Float32Array* v)
|
| -{
|
| - vertexAttribfvImpl("vertexAttrib3fv", index, v, 3);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib3fv(GLuint index, GLfloat* v, GLsizei size)
|
| -{
|
| - vertexAttribfvImpl("vertexAttrib3fv", index, v, size, 3);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib4f(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3)
|
| -{
|
| - vertexAttribfImpl("vertexAttrib4f", index, 4, v0, v1, v2, v3);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib4fv(GLuint index, Float32Array* v)
|
| -{
|
| - vertexAttribfvImpl("vertexAttrib4fv", index, v, 4);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttrib4fv(GLuint index, GLfloat* v, GLsizei size)
|
| -{
|
| - vertexAttribfvImpl("vertexAttrib4fv", index, v, size, 4);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttribPointer(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, long long offset)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - switch (type) {
|
| - case GL_BYTE:
|
| - case GL_UNSIGNED_BYTE:
|
| - case GL_SHORT:
|
| - case GL_UNSIGNED_SHORT:
|
| - case GL_FLOAT:
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, "vertexAttribPointer", "invalid type");
|
| - return;
|
| - }
|
| - if (index >= m_maxVertexAttribs) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "vertexAttribPointer", "index out of range");
|
| - return;
|
| - }
|
| - if (size < 1 || size > 4 || stride < 0 || stride > 255 || offset < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "vertexAttribPointer", "bad size, stride or offset");
|
| - return;
|
| - }
|
| - if (!m_boundArrayBuffer) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "vertexAttribPointer", "no bound ARRAY_BUFFER");
|
| - return;
|
| - }
|
| - // Determine the number of elements the bound buffer can hold, given the offset, size, type and stride
|
| - unsigned typeSize = sizeInBytes(type);
|
| - if (!typeSize) {
|
| - synthesizeGLError(GL_INVALID_ENUM, "vertexAttribPointer", "invalid type");
|
| - return;
|
| - }
|
| - if ((stride % typeSize) || (static_cast<GLintptr>(offset) % typeSize)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "vertexAttribPointer", "stride or offset not valid for type");
|
| - return;
|
| - }
|
| - GLsizei bytesPerElement = size * typeSize;
|
| -
|
| - m_boundVertexArrayObject->setVertexAttribState(index, bytesPerElement, size, type, normalized, stride, static_cast<GLintptr>(offset), m_boundArrayBuffer);
|
| - m_context->vertexAttribPointer(index, size, type, normalized, stride, static_cast<GLintptr>(offset));
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttribDivisorANGLE(GLuint index, GLuint divisor)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| -
|
| - if (index >= m_maxVertexAttribs) {
|
| - synthesizeGLError(GL_INVALID_VALUE, "vertexAttribDivisorANGLE", "index out of range");
|
| - return;
|
| - }
|
| -
|
| - m_boundVertexArrayObject->setVertexAttribDivisor(index, divisor);
|
| - m_context->vertexAttribDivisorANGLE(index, divisor);
|
| -}
|
| -
|
| -void WebGLRenderingContext::viewport(GLint x, GLint y, GLsizei width, GLsizei height)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (!validateSize("viewport", width, height))
|
| - return;
|
| - m_context->viewport(x, y, width, height);
|
| -}
|
| -
|
| -void WebGLRenderingContext::forceLostContext(WebGLRenderingContext::LostContextMode mode)
|
| -{
|
| - if (isContextLost()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "loseContext", "context already lost");
|
| - return;
|
| - }
|
| -
|
| - m_contextGroup->loseContextGroup(mode);
|
| -}
|
| -
|
| -void WebGLRenderingContext::loseContextImpl(WebGLRenderingContext::LostContextMode mode)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| -
|
| - m_contextLost = true;
|
| - m_contextLostMode = mode;
|
| -
|
| - if (mode == RealLostContext) {
|
| - // Inform the embedder that a lost context was received. In response, the embedder might
|
| - // decide to take action such as asking the user for permission to use WebGL again.
|
| - if (Frame* frame = canvas()->document().frame())
|
| - frame->loader().client()->didLoseWebGLContext(m_context->getGraphicsResetStatusARB());
|
| - }
|
| -
|
| - // Make absolutely sure we do not refer to an already-deleted texture or framebuffer.
|
| - m_drawingBuffer->setTexture2DBinding(0);
|
| - m_drawingBuffer->setFramebufferBinding(0);
|
| -
|
| - detachAndRemoveAllObjects();
|
| -
|
| - // Lose all the extensions.
|
| - for (size_t i = 0; i < m_extensions.size(); ++i) {
|
| - ExtensionTracker* tracker = m_extensions[i];
|
| - tracker->loseExtension();
|
| - }
|
| -
|
| - removeAllCompressedTextureFormats();
|
| -
|
| - if (mode != RealLostContext)
|
| - destroyContext();
|
| -
|
| - ConsoleDisplayPreference display = (mode == RealLostContext) ? DisplayInConsole: DontDisplayInConsole;
|
| - synthesizeGLError(GC3D_CONTEXT_LOST_WEBGL, "loseContext", "context lost", display);
|
| -
|
| - // Don't allow restoration unless the context lost event has both been
|
| - // dispatched and its default behavior prevented.
|
| - m_restoreAllowed = false;
|
| -
|
| - // Always defer the dispatch of the context lost event, to implement
|
| - // the spec behavior of queueing a task.
|
| - m_dispatchContextLostEventTimer.startOneShot(0);
|
| -}
|
| -
|
| -void WebGLRenderingContext::forceRestoreContext()
|
| -{
|
| - if (!isContextLost()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, "restoreContext", "context not lost");
|
| - return;
|
| - }
|
| -
|
| - if (!m_restoreAllowed) {
|
| - if (m_contextLostMode == SyntheticLostContext)
|
| - synthesizeGLError(GL_INVALID_OPERATION, "restoreContext", "context restoration not allowed");
|
| - return;
|
| - }
|
| -
|
| - if (!m_restoreTimer.isActive())
|
| - m_restoreTimer.startOneShot(0);
|
| -}
|
| -
|
| -blink::WebLayer* WebGLRenderingContext::platformLayer() const
|
| -{
|
| - return m_drawingBuffer->platformLayer();
|
| -}
|
| -
|
| -Extensions3DUtil* WebGLRenderingContext::extensionsUtil()
|
| -{
|
| - if (!m_extensionsUtil)
|
| - m_extensionsUtil = adoptPtr(new Extensions3DUtil(m_context.get()));
|
| - return m_extensionsUtil.get();
|
| -}
|
| -
|
| -void WebGLRenderingContext::removeSharedObject(WebGLSharedObject* object)
|
| -{
|
| - m_contextGroup->removeObject(object);
|
| -}
|
| -
|
| -void WebGLRenderingContext::addSharedObject(WebGLSharedObject* object)
|
| -{
|
| - ASSERT(!isContextLost());
|
| - m_contextGroup->addObject(object);
|
| -}
|
| -
|
| -void WebGLRenderingContext::removeContextObject(WebGLContextObject* object)
|
| -{
|
| - m_contextObjects.remove(object);
|
| -}
|
| -
|
| -void WebGLRenderingContext::addContextObject(WebGLContextObject* object)
|
| -{
|
| - ASSERT(!isContextLost());
|
| - m_contextObjects.add(object);
|
| -}
|
| -
|
| -void WebGLRenderingContext::detachAndRemoveAllObjects()
|
| -{
|
| - while (m_contextObjects.size() > 0) {
|
| - HashSet<WebGLContextObject*>::iterator it = m_contextObjects.begin();
|
| - (*it)->detachContext();
|
| - }
|
| -}
|
| -
|
| -bool WebGLRenderingContext::hasPendingActivity() const
|
| -{
|
| - return false;
|
| -}
|
| -
|
| -void WebGLRenderingContext::stop()
|
| -{
|
| - if (!isContextLost()) {
|
| - forceLostContext(SyntheticLostContext);
|
| - destroyContext();
|
| - }
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getBooleanParameter(GLenum pname)
|
| -{
|
| - GLboolean value = 0;
|
| - if (!isContextLost())
|
| - m_context->getBooleanv(pname, &value);
|
| - return WebGLGetInfo(static_cast<bool>(value));
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getBooleanArrayParameter(GLenum pname)
|
| -{
|
| - if (pname != GL_COLOR_WRITEMASK) {
|
| - notImplemented();
|
| - return WebGLGetInfo(0, 0);
|
| - }
|
| - GLboolean value[4] = {0};
|
| - if (!isContextLost())
|
| - m_context->getBooleanv(pname, value);
|
| - bool boolValue[4];
|
| - for (int ii = 0; ii < 4; ++ii)
|
| - boolValue[ii] = static_cast<bool>(value[ii]);
|
| - return WebGLGetInfo(boolValue, 4);
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getFloatParameter(GLenum pname)
|
| -{
|
| - GLfloat value = 0;
|
| - if (!isContextLost())
|
| - m_context->getFloatv(pname, &value);
|
| - return WebGLGetInfo(value);
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getIntParameter(GLenum pname)
|
| -{
|
| - GLint value = 0;
|
| - if (!isContextLost())
|
| - m_context->getIntegerv(pname, &value);
|
| - return WebGLGetInfo(value);
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getUnsignedIntParameter(GLenum pname)
|
| -{
|
| - GLint value = 0;
|
| - if (!isContextLost())
|
| - m_context->getIntegerv(pname, &value);
|
| - return WebGLGetInfo(static_cast<unsigned>(value));
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getWebGLFloatArrayParameter(GLenum pname)
|
| -{
|
| - GLfloat value[4] = {0};
|
| - if (!isContextLost())
|
| - m_context->getFloatv(pname, value);
|
| - unsigned length = 0;
|
| - switch (pname) {
|
| - case GL_ALIASED_POINT_SIZE_RANGE:
|
| - case GL_ALIASED_LINE_WIDTH_RANGE:
|
| - case GL_DEPTH_RANGE:
|
| - length = 2;
|
| - break;
|
| - case GL_BLEND_COLOR:
|
| - case GL_COLOR_CLEAR_VALUE:
|
| - length = 4;
|
| - break;
|
| - default:
|
| - notImplemented();
|
| - }
|
| - return WebGLGetInfo(Float32Array::create(value, length));
|
| -}
|
| -
|
| -WebGLGetInfo WebGLRenderingContext::getWebGLIntArrayParameter(GLenum pname)
|
| -{
|
| - GLint value[4] = {0};
|
| - if (!isContextLost())
|
| - m_context->getIntegerv(pname, value);
|
| - unsigned length = 0;
|
| - switch (pname) {
|
| - case GL_MAX_VIEWPORT_DIMS:
|
| - length = 2;
|
| - break;
|
| - case GL_SCISSOR_BOX:
|
| - case GL_VIEWPORT:
|
| - length = 4;
|
| - break;
|
| - default:
|
| - notImplemented();
|
| - }
|
| - return WebGLGetInfo(Int32Array::create(value, length));
|
| -}
|
| -
|
| -void WebGLRenderingContext::handleTextureCompleteness(const char* functionName, bool prepareToDraw)
|
| -{
|
| - // All calling functions check isContextLost, so a duplicate check is not needed here.
|
| - bool resetActiveUnit = false;
|
| - WebGLTexture::TextureExtensionFlag flag = static_cast<WebGLTexture::TextureExtensionFlag>((m_oesTextureFloatLinear ? WebGLTexture::TextureFloatLinearExtensionEnabled : 0)
|
| - | (m_oesTextureHalfFloatLinear ? WebGLTexture::TextureHalfFloatLinearExtensionEnabled : 0));
|
| - for (unsigned ii = 0; ii < m_onePlusMaxNonDefaultTextureUnit; ++ii) {
|
| - if ((m_textureUnits[ii].m_texture2DBinding.get() && m_textureUnits[ii].m_texture2DBinding->needToUseBlackTexture(flag))
|
| - || (m_textureUnits[ii].m_textureCubeMapBinding.get() && m_textureUnits[ii].m_textureCubeMapBinding->needToUseBlackTexture(flag))) {
|
| - if (ii != m_activeTextureUnit) {
|
| - m_context->activeTexture(ii);
|
| - resetActiveUnit = true;
|
| - } else if (resetActiveUnit) {
|
| - m_context->activeTexture(ii);
|
| - resetActiveUnit = false;
|
| - }
|
| - WebGLTexture* tex2D;
|
| - WebGLTexture* texCubeMap;
|
| - if (prepareToDraw) {
|
| - String msg(String("texture bound to texture unit ") + String::number(ii)
|
| - + " is not renderable. It maybe non-power-of-2 and have incompatible texture filtering or is not 'texture complete'."
|
| - + " Or the texture is Float or Half Float type with linear filtering while OES_float_linear or OES_half_float_linear extension is not enabled.");
|
| - emitGLWarning(functionName, msg.utf8().data());
|
| - tex2D = m_blackTexture2D.get();
|
| - texCubeMap = m_blackTextureCubeMap.get();
|
| - } else {
|
| - tex2D = m_textureUnits[ii].m_texture2DBinding.get();
|
| - texCubeMap = m_textureUnits[ii].m_textureCubeMapBinding.get();
|
| - }
|
| - if (m_textureUnits[ii].m_texture2DBinding && m_textureUnits[ii].m_texture2DBinding->needToUseBlackTexture(flag))
|
| - m_context->bindTexture(GL_TEXTURE_2D, objectOrZero(tex2D));
|
| - if (m_textureUnits[ii].m_textureCubeMapBinding && m_textureUnits[ii].m_textureCubeMapBinding->needToUseBlackTexture(flag))
|
| - m_context->bindTexture(GL_TEXTURE_CUBE_MAP, objectOrZero(texCubeMap));
|
| - }
|
| - }
|
| - if (resetActiveUnit)
|
| - m_context->activeTexture(m_activeTextureUnit);
|
| -}
|
| -
|
| -void WebGLRenderingContext::createFallbackBlackTextures1x1()
|
| -{
|
| - // All calling functions check isContextLost, so a duplicate check is not needed here.
|
| - unsigned char black[] = {0, 0, 0, 255};
|
| - m_blackTexture2D = createTexture();
|
| - m_context->bindTexture(GL_TEXTURE_2D, m_blackTexture2D->object());
|
| - m_context->texImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1,
|
| - 0, GL_RGBA, GL_UNSIGNED_BYTE, black);
|
| - m_context->bindTexture(GL_TEXTURE_2D, 0);
|
| - m_blackTextureCubeMap = createTexture();
|
| - m_context->bindTexture(GL_TEXTURE_CUBE_MAP, m_blackTextureCubeMap->object());
|
| - m_context->texImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, GL_RGBA, 1, 1,
|
| - 0, GL_RGBA, GL_UNSIGNED_BYTE, black);
|
| - m_context->texImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, GL_RGBA, 1, 1,
|
| - 0, GL_RGBA, GL_UNSIGNED_BYTE, black);
|
| - m_context->texImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, GL_RGBA, 1, 1,
|
| - 0, GL_RGBA, GL_UNSIGNED_BYTE, black);
|
| - m_context->texImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, GL_RGBA, 1, 1,
|
| - 0, GL_RGBA, GL_UNSIGNED_BYTE, black);
|
| - m_context->texImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, GL_RGBA, 1, 1,
|
| - 0, GL_RGBA, GL_UNSIGNED_BYTE, black);
|
| - m_context->texImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, GL_RGBA, 1, 1,
|
| - 0, GL_RGBA, GL_UNSIGNED_BYTE, black);
|
| - m_context->bindTexture(GL_TEXTURE_CUBE_MAP, 0);
|
| -}
|
| -
|
| -bool WebGLRenderingContext::isTexInternalFormatColorBufferCombinationValid(GLenum texInternalFormat, GLenum colorBufferFormat)
|
| -{
|
| - unsigned need = WebGLImageConversion::getChannelBitsByFormat(texInternalFormat);
|
| - unsigned have = WebGLImageConversion::getChannelBitsByFormat(colorBufferFormat);
|
| - return (need & have) == need;
|
| -}
|
| -
|
| -GLenum WebGLRenderingContext::boundFramebufferColorFormat()
|
| -{
|
| - if (m_framebufferBinding && m_framebufferBinding->object())
|
| - return m_framebufferBinding->colorBufferFormat();
|
| - if (m_requestedAttributes->alpha())
|
| - return GL_RGBA;
|
| - return GL_RGB;
|
| -}
|
| -
|
| -WebGLTexture* WebGLRenderingContext::validateTextureBinding(const char* functionName, GLenum target, bool useSixEnumsForCubeMap)
|
| -{
|
| - WebGLTexture* tex = 0;
|
| - switch (target) {
|
| - case GL_TEXTURE_2D:
|
| - tex = m_textureUnits[m_activeTextureUnit].m_texture2DBinding.get();
|
| - break;
|
| - case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
|
| - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
|
| - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
|
| - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
|
| - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
|
| - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
|
| - if (!useSixEnumsForCubeMap) {
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid texture target");
|
| - return 0;
|
| - }
|
| - tex = m_textureUnits[m_activeTextureUnit].m_textureCubeMapBinding.get();
|
| - break;
|
| - case GL_TEXTURE_CUBE_MAP:
|
| - if (useSixEnumsForCubeMap) {
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid texture target");
|
| - return 0;
|
| - }
|
| - tex = m_textureUnits[m_activeTextureUnit].m_textureCubeMapBinding.get();
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid texture target");
|
| - return 0;
|
| - }
|
| - if (!tex)
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "no texture");
|
| - return tex;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateLocationLength(const char* functionName, const String& string)
|
| -{
|
| - const unsigned maxWebGLLocationLength = 256;
|
| - if (string.length() > maxWebGLLocationLength) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "location length > 256");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateSize(const char* functionName, GLint x, GLint y)
|
| -{
|
| - if (x < 0 || y < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "size < 0");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateString(const char* functionName, const String& string)
|
| -{
|
| - for (size_t i = 0; i < string.length(); ++i) {
|
| - if (!validateCharacter(string[i])) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "string not ASCII");
|
| - return false;
|
| - }
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateTexFuncFormatAndType(const char* functionName, GLenum format, GLenum type, GLint level)
|
| -{
|
| - switch (format) {
|
| - case GL_ALPHA:
|
| - case GL_LUMINANCE:
|
| - case GL_LUMINANCE_ALPHA:
|
| - case GL_RGB:
|
| - case GL_RGBA:
|
| - break;
|
| - case GL_DEPTH_STENCIL_OES:
|
| - case GL_DEPTH_COMPONENT:
|
| - if (m_webglDepthTexture)
|
| - break;
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "depth texture formats not enabled");
|
| - return false;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid texture format");
|
| - return false;
|
| - }
|
| -
|
| - switch (type) {
|
| - case GL_UNSIGNED_BYTE:
|
| - case GL_UNSIGNED_SHORT_5_6_5:
|
| - case GL_UNSIGNED_SHORT_4_4_4_4:
|
| - case GL_UNSIGNED_SHORT_5_5_5_1:
|
| - break;
|
| - case GL_FLOAT:
|
| - if (m_oesTextureFloat)
|
| - break;
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid texture type");
|
| - return false;
|
| - case GL_HALF_FLOAT_OES:
|
| - if (m_oesTextureHalfFloat)
|
| - break;
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid texture type");
|
| - return false;
|
| - case GL_UNSIGNED_INT:
|
| - case GL_UNSIGNED_INT_24_8_OES:
|
| - case GL_UNSIGNED_SHORT:
|
| - if (m_webglDepthTexture)
|
| - break;
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid texture type");
|
| - return false;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid texture type");
|
| - return false;
|
| - }
|
| -
|
| - // Verify that the combination of format and type is supported.
|
| - switch (format) {
|
| - case GL_ALPHA:
|
| - case GL_LUMINANCE:
|
| - case GL_LUMINANCE_ALPHA:
|
| - if (type != GL_UNSIGNED_BYTE
|
| - && type != GL_FLOAT
|
| - && type != GL_HALF_FLOAT_OES) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "invalid type for format");
|
| - return false;
|
| - }
|
| - break;
|
| - case GL_RGB:
|
| - if (type != GL_UNSIGNED_BYTE
|
| - && type != GL_UNSIGNED_SHORT_5_6_5
|
| - && type != GL_FLOAT
|
| - && type != GL_HALF_FLOAT_OES) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "invalid type for RGB format");
|
| - return false;
|
| - }
|
| - break;
|
| - case GL_RGBA:
|
| - if (type != GL_UNSIGNED_BYTE
|
| - && type != GL_UNSIGNED_SHORT_4_4_4_4
|
| - && type != GL_UNSIGNED_SHORT_5_5_5_1
|
| - && type != GL_FLOAT
|
| - && type != GL_HALF_FLOAT_OES) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "invalid type for RGBA format");
|
| - return false;
|
| - }
|
| - break;
|
| - case GL_DEPTH_COMPONENT:
|
| - if (!m_webglDepthTexture) {
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid format. DEPTH_COMPONENT not enabled");
|
| - return false;
|
| - }
|
| - if (type != GL_UNSIGNED_SHORT
|
| - && type != GL_UNSIGNED_INT) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "invalid type for DEPTH_COMPONENT format");
|
| - return false;
|
| - }
|
| - if (level > 0) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "level must be 0 for DEPTH_COMPONENT format");
|
| - return false;
|
| - }
|
| - break;
|
| - case GL_DEPTH_STENCIL_OES:
|
| - if (!m_webglDepthTexture) {
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid format. DEPTH_STENCIL not enabled");
|
| - return false;
|
| - }
|
| - if (type != GL_UNSIGNED_INT_24_8_OES) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "invalid type for DEPTH_STENCIL format");
|
| - return false;
|
| - }
|
| - if (level > 0) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "level must be 0 for DEPTH_STENCIL format");
|
| - return false;
|
| - }
|
| - break;
|
| - default:
|
| - ASSERT_NOT_REACHED();
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateTexFuncLevel(const char* functionName, GLenum target, GLint level)
|
| -{
|
| - if (level < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "level < 0");
|
| - return false;
|
| - }
|
| - switch (target) {
|
| - case GL_TEXTURE_2D:
|
| - if (level >= m_maxTextureLevel) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "level out of range");
|
| - return false;
|
| - }
|
| - break;
|
| - case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
|
| - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
|
| - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
|
| - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
|
| - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
|
| - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
|
| - if (level >= m_maxCubeMapTextureLevel) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "level out of range");
|
| - return false;
|
| - }
|
| - break;
|
| - }
|
| - // This function only checks if level is legal, so we return true and don't
|
| - // generate INVALID_ENUM if target is illegal.
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateTexFuncDimensions(const char* functionName, TexFuncValidationFunctionType functionType,
|
| - GLenum target, GLint level, GLsizei width, GLsizei height)
|
| -{
|
| - if (width < 0 || height < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "width or height < 0");
|
| - return false;
|
| - }
|
| -
|
| - switch (target) {
|
| - case GL_TEXTURE_2D:
|
| - if (width > (m_maxTextureSize >> level) || height > (m_maxTextureSize >> level)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "width or height out of range");
|
| - return false;
|
| - }
|
| - break;
|
| - case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
|
| - case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
|
| - case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
|
| - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
|
| - case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
|
| - case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
|
| - if (functionType != TexSubImage2D && width != height) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "width != height for cube map");
|
| - return false;
|
| - }
|
| - // No need to check height here. For texImage width == height.
|
| - // For texSubImage that will be checked when checking yoffset + height is in range.
|
| - if (width > (m_maxCubeMapTextureSize >> level)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "width or height out of range for cube map");
|
| - return false;
|
| - }
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid target");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateTexFuncParameters(const char* functionName, TexFuncValidationFunctionType functionType, GLenum target,
|
| - GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type)
|
| -{
|
| - // We absolutely have to validate the format and type combination.
|
| - // The texImage2D entry points taking HTMLImage, etc. will produce
|
| - // temporary data based on this combination, so it must be legal.
|
| - if (!validateTexFuncFormatAndType(functionName, format, type, level) || !validateTexFuncLevel(functionName, target, level))
|
| - return false;
|
| -
|
| - if (!validateTexFuncDimensions(functionName, functionType, target, level, width, height))
|
| - return false;
|
| -
|
| - if (format != internalformat) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "format != internalformat");
|
| - return false;
|
| - }
|
| -
|
| - if (border) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "border != 0");
|
| - return false;
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateTexFuncData(const char* functionName, GLint level, GLsizei width, GLsizei height, GLenum format, GLenum type, ArrayBufferView* pixels, NullDisposition disposition)
|
| -{
|
| - // All calling functions check isContextLost, so a duplicate check is not needed here.
|
| - if (!pixels) {
|
| - if (disposition == NullAllowed)
|
| - return true;
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no pixels");
|
| - return false;
|
| - }
|
| -
|
| - if (!validateTexFuncFormatAndType(functionName, format, type, level))
|
| - return false;
|
| - if (!validateSettableTexFormat(functionName, format))
|
| - return false;
|
| -
|
| - switch (type) {
|
| - case GL_UNSIGNED_BYTE:
|
| - if (pixels->type() != ArrayBufferView::TypeUint8) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "type UNSIGNED_BYTE but ArrayBufferView not Uint8Array");
|
| - return false;
|
| - }
|
| - break;
|
| - case GL_UNSIGNED_SHORT_5_6_5:
|
| - case GL_UNSIGNED_SHORT_4_4_4_4:
|
| - case GL_UNSIGNED_SHORT_5_5_5_1:
|
| - if (pixels->type() != ArrayBufferView::TypeUint16) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "type UNSIGNED_SHORT but ArrayBufferView not Uint16Array");
|
| - return false;
|
| - }
|
| - break;
|
| - case GL_FLOAT: // OES_texture_float
|
| - if (pixels->type() != ArrayBufferView::TypeFloat32) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "type FLOAT but ArrayBufferView not Float32Array");
|
| - return false;
|
| - }
|
| - break;
|
| - case GL_HALF_FLOAT_OES: // OES_texture_half_float
|
| - // As per the specification, ArrayBufferView should be null when
|
| - // OES_texture_half_float is enabled.
|
| - if (pixels) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "type HALF_FLOAT_OES but ArrayBufferView is not NULL");
|
| - return false;
|
| - }
|
| - break;
|
| - default:
|
| - ASSERT_NOT_REACHED();
|
| - }
|
| -
|
| - unsigned totalBytesRequired;
|
| - GLenum error = WebGLImageConversion::computeImageSizeInBytes(format, type, width, height, m_unpackAlignment, &totalBytesRequired, 0);
|
| - if (error != GL_NO_ERROR) {
|
| - synthesizeGLError(error, functionName, "invalid texture dimensions");
|
| - return false;
|
| - }
|
| - if (pixels->byteLength() < totalBytesRequired) {
|
| - if (m_unpackAlignment != 1) {
|
| - error = WebGLImageConversion::computeImageSizeInBytes(format, type, width, height, 1, &totalBytesRequired, 0);
|
| - if (pixels->byteLength() == totalBytesRequired) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "ArrayBufferView not big enough for request with UNPACK_ALIGNMENT > 1");
|
| - return false;
|
| - }
|
| - }
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "ArrayBufferView not big enough for request");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateCompressedTexFormat(GLenum format)
|
| -{
|
| - return m_compressedTextureFormats.contains(format);
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateCompressedTexFuncData(const char* functionName, GLsizei width, GLsizei height, GLenum format, ArrayBufferView* pixels)
|
| -{
|
| - if (!pixels) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no pixels");
|
| - return false;
|
| - }
|
| - if (width < 0 || height < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "width or height < 0");
|
| - return false;
|
| - }
|
| -
|
| - unsigned bytesRequired = 0;
|
| -
|
| - switch (format) {
|
| - case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
|
| - case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
|
| - {
|
| - const int kBlockWidth = 4;
|
| - const int kBlockHeight = 4;
|
| - const int kBlockSize = 8;
|
| - int numBlocksAcross = (width + kBlockWidth - 1) / kBlockWidth;
|
| - int numBlocksDown = (height + kBlockHeight - 1) / kBlockHeight;
|
| - int numBlocks = numBlocksAcross * numBlocksDown;
|
| - bytesRequired = numBlocks * kBlockSize;
|
| - }
|
| - break;
|
| - case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
|
| - case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
|
| - {
|
| - const int kBlockWidth = 4;
|
| - const int kBlockHeight = 4;
|
| - const int kBlockSize = 16;
|
| - int numBlocksAcross = (width + kBlockWidth - 1) / kBlockWidth;
|
| - int numBlocksDown = (height + kBlockHeight - 1) / kBlockHeight;
|
| - int numBlocks = numBlocksAcross * numBlocksDown;
|
| - bytesRequired = numBlocks * kBlockSize;
|
| - }
|
| - break;
|
| - case GC3D_COMPRESSED_ATC_RGB_AMD:
|
| - {
|
| - bytesRequired = floor(static_cast<double>((width + 3) / 4)) * floor(static_cast<double>((height + 3) / 4)) * 8;
|
| - }
|
| - break;
|
| - case GC3D_COMPRESSED_ATC_RGBA_EXPLICIT_ALPHA_AMD:
|
| - case GC3D_COMPRESSED_ATC_RGBA_INTERPOLATED_ALPHA_AMD:
|
| - {
|
| - bytesRequired = floor(static_cast<double>((width + 3) / 4)) * floor(static_cast<double>((height + 3) / 4)) * 16;
|
| - }
|
| - break;
|
| - case GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG:
|
| - case GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG:
|
| - {
|
| - bytesRequired = max(width, 8) * max(height, 8) / 2;
|
| - }
|
| - break;
|
| - case GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG:
|
| - case GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG:
|
| - {
|
| - bytesRequired = max(width, 8) * max(height, 8) / 4;
|
| - }
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid format");
|
| - return false;
|
| - }
|
| -
|
| - if (pixels->byteLength() != bytesRequired) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "length of ArrayBufferView is not correct for dimensions");
|
| - return false;
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateCompressedTexDimensions(const char* functionName, TexFuncValidationFunctionType functionType, GLenum target, GLint level, GLsizei width, GLsizei height, GLenum format)
|
| -{
|
| - if (!validateTexFuncDimensions(functionName, functionType, target, level, width, height))
|
| - return false;
|
| -
|
| - switch (format) {
|
| - case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
|
| - case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
|
| - case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
|
| - case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: {
|
| - const int kBlockWidth = 4;
|
| - const int kBlockHeight = 4;
|
| - bool widthValid = (level && width == 1) || (level && width == 2) || !(width % kBlockWidth);
|
| - bool heightValid = (level && height == 1) || (level && height == 2) || !(height % kBlockHeight);
|
| - if (!widthValid || !heightValid) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "width or height invalid for level");
|
| - return false;
|
| - }
|
| - return true;
|
| - }
|
| - default:
|
| - return false;
|
| - }
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateCompressedTexSubDimensions(const char* functionName, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, WebGLTexture* tex)
|
| -{
|
| - if (xoffset < 0 || yoffset < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "xoffset or yoffset < 0");
|
| - return false;
|
| - }
|
| -
|
| - switch (format) {
|
| - case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
|
| - case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
|
| - case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
|
| - case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: {
|
| - const int kBlockWidth = 4;
|
| - const int kBlockHeight = 4;
|
| - if ((xoffset % kBlockWidth) || (yoffset % kBlockHeight)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "xoffset or yoffset not multiple of 4");
|
| - return false;
|
| - }
|
| - if (width - xoffset > tex->getWidth(target, level)
|
| - || height - yoffset > tex->getHeight(target, level)) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "dimensions out of range");
|
| - return false;
|
| - }
|
| - return validateCompressedTexDimensions(functionName, TexSubImage2D, target, level, width, height, format);
|
| - }
|
| - default:
|
| - return false;
|
| - }
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateDrawMode(const char* functionName, GLenum mode)
|
| -{
|
| - switch (mode) {
|
| - case GL_POINTS:
|
| - case GL_LINE_STRIP:
|
| - case GL_LINE_LOOP:
|
| - case GL_LINES:
|
| - case GL_TRIANGLE_STRIP:
|
| - case GL_TRIANGLE_FAN:
|
| - case GL_TRIANGLES:
|
| - return true;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid draw mode");
|
| - return false;
|
| - }
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateStencilSettings(const char* functionName)
|
| -{
|
| - if (m_stencilMask != m_stencilMaskBack || m_stencilFuncRef != m_stencilFuncRefBack || m_stencilFuncMask != m_stencilFuncMaskBack) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "front and back stencils settings do not match");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateStencilOrDepthFunc(const char* functionName, GLenum func)
|
| -{
|
| - switch (func) {
|
| - case GL_NEVER:
|
| - case GL_LESS:
|
| - case GL_LEQUAL:
|
| - case GL_GREATER:
|
| - case GL_GEQUAL:
|
| - case GL_EQUAL:
|
| - case GL_NOTEQUAL:
|
| - case GL_ALWAYS:
|
| - return true;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid function");
|
| - return false;
|
| - }
|
| -}
|
| -
|
| -void WebGLRenderingContext::printGLErrorToConsole(const String& message)
|
| -{
|
| - if (!m_numGLErrorsToConsoleAllowed)
|
| - return;
|
| -
|
| - --m_numGLErrorsToConsoleAllowed;
|
| - printWarningToConsole(message);
|
| -
|
| - if (!m_numGLErrorsToConsoleAllowed)
|
| - printWarningToConsole("WebGL: too many errors, no more errors will be reported to the console for this context.");
|
| -
|
| - return;
|
| -}
|
| -
|
| -void WebGLRenderingContext::printWarningToConsole(const String& message)
|
| -{
|
| - if (!canvas())
|
| - return;
|
| - canvas()->document().addConsoleMessage(RenderingMessageSource, WarningMessageLevel, message);
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateFramebufferFuncParameters(const char* functionName, GLenum target, GLenum attachment)
|
| -{
|
| - if (target != GL_FRAMEBUFFER) {
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid target");
|
| - return false;
|
| - }
|
| - switch (attachment) {
|
| - case GL_COLOR_ATTACHMENT0:
|
| - case GL_DEPTH_ATTACHMENT:
|
| - case GL_STENCIL_ATTACHMENT:
|
| - case GC3D_DEPTH_STENCIL_ATTACHMENT_WEBGL:
|
| - break;
|
| - default:
|
| - if (m_webglDrawBuffers
|
| - && attachment > GL_COLOR_ATTACHMENT0
|
| - && attachment < static_cast<GLenum>(GL_COLOR_ATTACHMENT0 + maxColorAttachments()))
|
| - break;
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid attachment");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateBlendEquation(const char* functionName, GLenum mode)
|
| -{
|
| - switch (mode) {
|
| - case GL_FUNC_ADD:
|
| - case GL_FUNC_SUBTRACT:
|
| - case GL_FUNC_REVERSE_SUBTRACT:
|
| - return true;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid mode");
|
| - return false;
|
| - }
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateBlendFuncFactors(const char* functionName, GLenum src, GLenum dst)
|
| -{
|
| - if (((src == GL_CONSTANT_COLOR || src == GL_ONE_MINUS_CONSTANT_COLOR)
|
| - && (dst == GL_CONSTANT_ALPHA || dst == GL_ONE_MINUS_CONSTANT_ALPHA))
|
| - || ((dst == GL_CONSTANT_COLOR || dst == GL_ONE_MINUS_CONSTANT_COLOR)
|
| - && (src == GL_CONSTANT_ALPHA || src == GL_ONE_MINUS_CONSTANT_ALPHA))) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "incompatible src and dst");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateCapability(const char* functionName, GLenum cap)
|
| -{
|
| - switch (cap) {
|
| - case GL_BLEND:
|
| - case GL_CULL_FACE:
|
| - case GL_DEPTH_TEST:
|
| - case GL_DITHER:
|
| - case GL_POLYGON_OFFSET_FILL:
|
| - case GL_SAMPLE_ALPHA_TO_COVERAGE:
|
| - case GL_SAMPLE_COVERAGE:
|
| - case GL_SCISSOR_TEST:
|
| - case GL_STENCIL_TEST:
|
| - return true;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid capability");
|
| - return false;
|
| - }
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateUniformParameters(const char* functionName, const WebGLUniformLocation* location, Float32Array* v, GLsizei requiredMinSize)
|
| -{
|
| - if (!v) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no array");
|
| - return false;
|
| - }
|
| - return validateUniformMatrixParameters(functionName, location, false, v->data(), v->length(), requiredMinSize);
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateUniformParameters(const char* functionName, const WebGLUniformLocation* location, Int32Array* v, GLsizei requiredMinSize)
|
| -{
|
| - if (!v) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no array");
|
| - return false;
|
| - }
|
| - return validateUniformMatrixParameters(functionName, location, false, v->data(), v->length(), requiredMinSize);
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateUniformParameters(const char* functionName, const WebGLUniformLocation* location, void* v, GLsizei size, GLsizei requiredMinSize)
|
| -{
|
| - return validateUniformMatrixParameters(functionName, location, false, v, size, requiredMinSize);
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateUniformMatrixParameters(const char* functionName, const WebGLUniformLocation* location, GLboolean transpose, Float32Array* v, GLsizei requiredMinSize)
|
| -{
|
| - if (!v) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no array");
|
| - return false;
|
| - }
|
| - return validateUniformMatrixParameters(functionName, location, transpose, v->data(), v->length(), requiredMinSize);
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateUniformMatrixParameters(const char* functionName, const WebGLUniformLocation* location, GLboolean transpose, void* v, GLsizei size, GLsizei requiredMinSize)
|
| -{
|
| - if (!location)
|
| - return false;
|
| - if (location->program() != m_currentProgram) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "location is not from current program");
|
| - return false;
|
| - }
|
| - if (!v) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no array");
|
| - return false;
|
| - }
|
| - if (transpose) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "transpose not FALSE");
|
| - return false;
|
| - }
|
| - if (size < requiredMinSize || (size % requiredMinSize)) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "invalid size");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -WebGLBuffer* WebGLRenderingContext::validateBufferDataParameters(const char* functionName, GLenum target, GLenum usage)
|
| -{
|
| - WebGLBuffer* buffer = 0;
|
| - switch (target) {
|
| - case GL_ELEMENT_ARRAY_BUFFER:
|
| - buffer = m_boundVertexArrayObject->boundElementArrayBuffer().get();
|
| - break;
|
| - case GL_ARRAY_BUFFER:
|
| - buffer = m_boundArrayBuffer.get();
|
| - break;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid target");
|
| - return 0;
|
| - }
|
| - if (!buffer) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "no buffer");
|
| - return 0;
|
| - }
|
| - switch (usage) {
|
| - case GL_STREAM_DRAW:
|
| - case GL_STATIC_DRAW:
|
| - case GL_DYNAMIC_DRAW:
|
| - return buffer;
|
| - }
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid usage");
|
| - return 0;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateHTMLImageElement(const char* functionName, HTMLImageElement* image, ExceptionState& exceptionState)
|
| -{
|
| - if (!image || !image->cachedImage()) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no image");
|
| - return false;
|
| - }
|
| - const KURL& url = image->cachedImage()->response().url();
|
| - if (url.isNull() || url.isEmpty() || !url.isValid()) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "invalid image");
|
| - return false;
|
| - }
|
| - if (wouldTaintOrigin(image)) {
|
| - exceptionState.throwSecurityError("The cross-origin image at " + url.elidedString() + " may not be loaded.");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateHTMLCanvasElement(const char* functionName, HTMLCanvasElement* canvas, ExceptionState& exceptionState)
|
| -{
|
| - if (!canvas || !canvas->buffer()) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no canvas");
|
| - return false;
|
| - }
|
| - if (wouldTaintOrigin(canvas)) {
|
| - exceptionState.throwSecurityError("Tainted canvases may not be loaded.");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateHTMLVideoElement(const char* functionName, HTMLVideoElement* video, ExceptionState& exceptionState)
|
| -{
|
| - if (!video || !video->videoWidth() || !video->videoHeight()) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no video");
|
| - return false;
|
| - }
|
| - if (wouldTaintOrigin(video)) {
|
| - exceptionState.throwSecurityError("The video element contains cross-origin data, and may not be loaded.");
|
| - return false;
|
| - }
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateDrawArrays(const char* functionName, GLenum mode, GLint first, GLsizei count)
|
| -{
|
| - if (isContextLost() || !validateDrawMode(functionName, mode))
|
| - return false;
|
| -
|
| - if (!validateStencilSettings(functionName))
|
| - return false;
|
| -
|
| - if (first < 0 || count < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "first or count < 0");
|
| - return false;
|
| - }
|
| -
|
| - if (!count) {
|
| - markContextChanged();
|
| - return false;
|
| - }
|
| -
|
| - if (!validateRenderingState(functionName)) {
|
| - return false;
|
| - }
|
| -
|
| - const char* reason = "framebuffer incomplete";
|
| - if (m_framebufferBinding && !m_framebufferBinding->onAccess(m_context.get(), &reason)) {
|
| - synthesizeGLError(GL_INVALID_FRAMEBUFFER_OPERATION, functionName, reason);
|
| - return false;
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -bool WebGLRenderingContext::validateDrawElements(const char* functionName, GLenum mode, GLsizei count, GLenum type, long long offset)
|
| -{
|
| - if (isContextLost() || !validateDrawMode(functionName, mode))
|
| - return false;
|
| -
|
| - if (!validateStencilSettings(functionName))
|
| - return false;
|
| -
|
| - switch (type) {
|
| - case GL_UNSIGNED_BYTE:
|
| - case GL_UNSIGNED_SHORT:
|
| - break;
|
| - case GL_UNSIGNED_INT:
|
| - if (m_oesElementIndexUint)
|
| - break;
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid type");
|
| - return false;
|
| - default:
|
| - synthesizeGLError(GL_INVALID_ENUM, functionName, "invalid type");
|
| - return false;
|
| - }
|
| -
|
| - if (count < 0 || offset < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "count or offset < 0");
|
| - return false;
|
| - }
|
| -
|
| - if (!count) {
|
| - markContextChanged();
|
| - return false;
|
| - }
|
| -
|
| - if (!m_boundVertexArrayObject->boundElementArrayBuffer()) {
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "no ELEMENT_ARRAY_BUFFER bound");
|
| - return false;
|
| - }
|
| -
|
| - if (!validateRenderingState(functionName)) {
|
| - return false;
|
| - }
|
| -
|
| - const char* reason = "framebuffer incomplete";
|
| - if (m_framebufferBinding && !m_framebufferBinding->onAccess(m_context.get(), &reason)) {
|
| - synthesizeGLError(GL_INVALID_FRAMEBUFFER_OPERATION, functionName, reason);
|
| - return false;
|
| - }
|
| -
|
| - return true;
|
| -}
|
| -
|
| -// Helper function to validate draw*Instanced calls
|
| -bool WebGLRenderingContext::validateDrawInstanced(const char* functionName, GLsizei primcount)
|
| -{
|
| - if (primcount < 0) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "primcount < 0");
|
| - return false;
|
| - }
|
| -
|
| - // Ensure at least one enabled vertex attrib has a divisor of 0.
|
| - for (unsigned i = 0; i < m_onePlusMaxEnabledAttribIndex; ++i) {
|
| - const WebGLVertexArrayObjectOES::VertexAttribState& state = m_boundVertexArrayObject->getVertexAttribState(i);
|
| - if (state.enabled && !state.divisor)
|
| - return true;
|
| - }
|
| -
|
| - synthesizeGLError(GL_INVALID_OPERATION, functionName, "at least one enabled attribute must have a divisor of 0");
|
| - return false;
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttribfImpl(const char* functionName, GLuint index, GLsizei expectedSize, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (index >= m_maxVertexAttribs) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "index out of range");
|
| - return;
|
| - }
|
| - // In GL, we skip setting vertexAttrib0 values.
|
| - switch (expectedSize) {
|
| - case 1:
|
| - m_context->vertexAttrib1f(index, v0);
|
| - break;
|
| - case 2:
|
| - m_context->vertexAttrib2f(index, v0, v1);
|
| - break;
|
| - case 3:
|
| - m_context->vertexAttrib3f(index, v0, v1, v2);
|
| - break;
|
| - case 4:
|
| - m_context->vertexAttrib4f(index, v0, v1, v2, v3);
|
| - break;
|
| - }
|
| - VertexAttribValue& attribValue = m_vertexAttribValue[index];
|
| - attribValue.value[0] = v0;
|
| - attribValue.value[1] = v1;
|
| - attribValue.value[2] = v2;
|
| - attribValue.value[3] = v3;
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttribfvImpl(const char* functionName, GLuint index, Float32Array* v, GLsizei expectedSize)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (!v) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no array");
|
| - return;
|
| - }
|
| - vertexAttribfvImpl(functionName, index, v->data(), v->length(), expectedSize);
|
| -}
|
| -
|
| -void WebGLRenderingContext::vertexAttribfvImpl(const char* functionName, GLuint index, GLfloat* v, GLsizei size, GLsizei expectedSize)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (!v) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "no array");
|
| - return;
|
| - }
|
| - if (size < expectedSize) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "invalid size");
|
| - return;
|
| - }
|
| - if (index >= m_maxVertexAttribs) {
|
| - synthesizeGLError(GL_INVALID_VALUE, functionName, "index out of range");
|
| - return;
|
| - }
|
| - // In GL, we skip setting vertexAttrib0 values.
|
| - switch (expectedSize) {
|
| - case 1:
|
| - m_context->vertexAttrib1fv(index, v);
|
| - break;
|
| - case 2:
|
| - m_context->vertexAttrib2fv(index, v);
|
| - break;
|
| - case 3:
|
| - m_context->vertexAttrib3fv(index, v);
|
| - break;
|
| - case 4:
|
| - m_context->vertexAttrib4fv(index, v);
|
| - break;
|
| - }
|
| - VertexAttribValue& attribValue = m_vertexAttribValue[index];
|
| - attribValue.initValue();
|
| - for (int ii = 0; ii < expectedSize; ++ii)
|
| - attribValue.value[ii] = v[ii];
|
| -}
|
| -
|
| -void WebGLRenderingContext::dispatchContextLostEvent(Timer<WebGLRenderingContext>*)
|
| -{
|
| - RefPtr<WebGLContextEvent> event = WebGLContextEvent::create(EventTypeNames::webglcontextlost, false, true, "");
|
| - canvas()->dispatchEvent(event);
|
| - m_restoreAllowed = event->defaultPrevented();
|
| - deactivateContext(this, m_contextLostMode != RealLostContext && m_restoreAllowed);
|
| - if ((m_contextLostMode == RealLostContext || m_contextLostMode == AutoRecoverSyntheticLostContext) && m_restoreAllowed)
|
| - m_restoreTimer.startOneShot(0);
|
| -}
|
| -
|
| -void WebGLRenderingContext::maybeRestoreContext(Timer<WebGLRenderingContext>*)
|
| -{
|
| - ASSERT(isContextLost());
|
| -
|
| - // The rendering context is not restored unless the default behavior of the
|
| - // webglcontextlost event was prevented earlier.
|
| - //
|
| - // Because of the way m_restoreTimer is set up for real vs. synthetic lost
|
| - // context events, we don't have to worry about this test short-circuiting
|
| - // the retry loop for real context lost events.
|
| - if (!m_restoreAllowed)
|
| - return;
|
| -
|
| - Frame* frame = canvas()->document().frame();
|
| - if (!frame)
|
| - return;
|
| -
|
| - Settings* settings = frame->settings();
|
| -
|
| - if (!frame->loader().client()->allowWebGL(settings && settings->webGLEnabled()))
|
| - return;
|
| -
|
| - blink::WebGraphicsContext3D::Attributes attributes = m_requestedAttributes->attributes(canvas()->document().topDocument()->url().string(), settings);
|
| - OwnPtr<blink::WebGraphicsContext3D> context = adoptPtr(blink::Platform::current()->createOffscreenGraphicsContext3D(attributes));
|
| - if (!context) {
|
| - if (m_contextLostMode == RealLostContext) {
|
| - m_restoreTimer.startOneShot(secondsBetweenRestoreAttempts);
|
| - } else {
|
| - // This likely shouldn't happen but is the best way to report it to the WebGL app.
|
| - synthesizeGLError(GL_INVALID_OPERATION, "", "error restoring context");
|
| - }
|
| - return;
|
| - }
|
| -
|
| - RefPtr<WebGLRenderingContextEvictionManager> contextEvictionManager = adoptRef(new WebGLRenderingContextEvictionManager());
|
| -
|
| - // Construct a new drawing buffer with the new WebGraphicsContext3D.
|
| - m_drawingBuffer->releaseResources();
|
| - DrawingBuffer::PreserveDrawingBuffer preserve = m_requestedAttributes->preserveDrawingBuffer() ? DrawingBuffer::Preserve : DrawingBuffer::Discard;
|
| - m_drawingBuffer = DrawingBuffer::create(context.get(), clampedCanvasSize(), preserve, contextEvictionManager.release());
|
| -
|
| - if (m_drawingBuffer->isZeroSized())
|
| - return;
|
| -
|
| - m_drawingBuffer->bind();
|
| -
|
| - m_lostContextErrors.clear();
|
| -
|
| - m_context = context.release();
|
| - m_contextLost = false;
|
| -
|
| - setupFlags();
|
| - initializeNewContext();
|
| - canvas()->dispatchEvent(WebGLContextEvent::create(EventTypeNames::webglcontextrestored, false, true, ""));
|
| -}
|
| -
|
| -String WebGLRenderingContext::ensureNotNull(const String& text) const
|
| -{
|
| - if (text.isNull())
|
| - return WTF::emptyString();
|
| - return text;
|
| -}
|
| -
|
| -WebGLRenderingContext::LRUImageBufferCache::LRUImageBufferCache(int capacity)
|
| - : m_buffers(adoptArrayPtr(new OwnPtr<ImageBuffer>[capacity]))
|
| - , m_capacity(capacity)
|
| -{
|
| -}
|
| -
|
| -ImageBuffer* WebGLRenderingContext::LRUImageBufferCache::imageBuffer(const IntSize& size)
|
| -{
|
| - int i;
|
| - for (i = 0; i < m_capacity; ++i) {
|
| - ImageBuffer* buf = m_buffers[i].get();
|
| - if (!buf)
|
| - break;
|
| - if (buf->size() != size)
|
| - continue;
|
| - bubbleToFront(i);
|
| - return buf;
|
| - }
|
| -
|
| - OwnPtr<ImageBuffer> temp(ImageBuffer::create(size));
|
| - if (!temp)
|
| - return 0;
|
| - i = std::min(m_capacity - 1, i);
|
| - m_buffers[i] = temp.release();
|
| -
|
| - ImageBuffer* buf = m_buffers[i].get();
|
| - bubbleToFront(i);
|
| - return buf;
|
| -}
|
| -
|
| -void WebGLRenderingContext::LRUImageBufferCache::bubbleToFront(int idx)
|
| -{
|
| - for (int i = idx; i > 0; --i)
|
| - m_buffers[i].swap(m_buffers[i-1]);
|
| -}
|
| -
|
| -namespace {
|
| -
|
| - String GetErrorString(GLenum error)
|
| - {
|
| - switch (error) {
|
| - case GL_INVALID_ENUM:
|
| - return "INVALID_ENUM";
|
| - case GL_INVALID_VALUE:
|
| - return "INVALID_VALUE";
|
| - case GL_INVALID_OPERATION:
|
| - return "INVALID_OPERATION";
|
| - case GL_OUT_OF_MEMORY:
|
| - return "OUT_OF_MEMORY";
|
| - case GL_INVALID_FRAMEBUFFER_OPERATION:
|
| - return "INVALID_FRAMEBUFFER_OPERATION";
|
| - case GC3D_CONTEXT_LOST_WEBGL:
|
| - return "CONTEXT_LOST_WEBGL";
|
| - default:
|
| - return String::format("WebGL ERROR(0x%04X)", error);
|
| - }
|
| - }
|
| -
|
| -} // namespace anonymous
|
| -
|
| -void WebGLRenderingContext::synthesizeGLError(GLenum error, const char* functionName, const char* description, ConsoleDisplayPreference display)
|
| -{
|
| - String errorType = GetErrorString(error);
|
| - if (m_synthesizedErrorsToConsole && display == DisplayInConsole) {
|
| - String message = String("WebGL: ") + errorType + ": " + String(functionName) + ": " + String(description);
|
| - printGLErrorToConsole(message);
|
| - }
|
| - if (!isContextLost())
|
| - m_context->synthesizeGLError(error);
|
| - else {
|
| - if (m_lostContextErrors.find(error) == WTF::kNotFound)
|
| - m_lostContextErrors.append(error);
|
| - }
|
| - InspectorInstrumentation::didFireWebGLError(canvas(), errorType);
|
| -}
|
| -
|
| -void WebGLRenderingContext::emitGLWarning(const char* functionName, const char* description)
|
| -{
|
| - if (m_synthesizedErrorsToConsole) {
|
| - String message = String("WebGL: ") + String(functionName) + ": " + String(description);
|
| - printGLErrorToConsole(message);
|
| - }
|
| - InspectorInstrumentation::didFireWebGLWarning(canvas());
|
| -}
|
| -
|
| -void WebGLRenderingContext::applyStencilTest()
|
| -{
|
| - bool haveStencilBuffer = false;
|
| -
|
| - if (m_framebufferBinding)
|
| - haveStencilBuffer = m_framebufferBinding->hasStencilBuffer();
|
| - else {
|
| - RefPtr<WebGLContextAttributes> attributes = getContextAttributes();
|
| - haveStencilBuffer = attributes->stencil();
|
| - }
|
| - enableOrDisable(GL_STENCIL_TEST,
|
| - m_stencilEnabled && haveStencilBuffer);
|
| -}
|
| -
|
| -void WebGLRenderingContext::enableOrDisable(GLenum capability, bool enable)
|
| -{
|
| - if (isContextLost())
|
| - return;
|
| - if (enable)
|
| - m_context->enable(capability);
|
| - else
|
| - m_context->disable(capability);
|
| -}
|
| -
|
| -IntSize WebGLRenderingContext::clampedCanvasSize()
|
| -{
|
| - return IntSize(clamp(canvas()->width(), 1, m_maxViewportDims[0]),
|
| - clamp(canvas()->height(), 1, m_maxViewportDims[1]));
|
| -}
|
| -
|
| -GLint WebGLRenderingContext::maxDrawBuffers()
|
| -{
|
| - if (isContextLost() || !m_webglDrawBuffers)
|
| - return 0;
|
| - if (!m_maxDrawBuffers)
|
| - m_context->getIntegerv(GL_MAX_DRAW_BUFFERS_EXT, &m_maxDrawBuffers);
|
| - if (!m_maxColorAttachments)
|
| - m_context->getIntegerv(GL_MAX_COLOR_ATTACHMENTS_EXT, &m_maxColorAttachments);
|
| - // WEBGL_draw_buffers requires MAX_COLOR_ATTACHMENTS >= MAX_DRAW_BUFFERS.
|
| - return std::min(m_maxDrawBuffers, m_maxColorAttachments);
|
| -}
|
| -
|
| -GLint WebGLRenderingContext::maxColorAttachments()
|
| -{
|
| - if (isContextLost() || !m_webglDrawBuffers)
|
| - return 0;
|
| - if (!m_maxColorAttachments)
|
| - m_context->getIntegerv(GL_MAX_COLOR_ATTACHMENTS_EXT, &m_maxColorAttachments);
|
| - return m_maxColorAttachments;
|
| -}
|
| -
|
| -void WebGLRenderingContext::setBackDrawBuffer(GLenum buf)
|
| -{
|
| - m_backDrawBuffer = buf;
|
| -}
|
| -
|
| -void WebGLRenderingContext::restoreCurrentFramebuffer()
|
| -{
|
| - bindFramebuffer(GL_FRAMEBUFFER, m_framebufferBinding.get());
|
| -}
|
| -
|
| -void WebGLRenderingContext::restoreCurrentTexture2D()
|
| -{
|
| - bindTexture(GL_TEXTURE_2D, m_textureUnits[m_activeTextureUnit].m_texture2DBinding.get());
|
| -}
|
| -
|
| -void WebGLRenderingContext::multisamplingChanged(bool enabled)
|
| -{
|
| - if (m_multisamplingAllowed != enabled) {
|
| - m_multisamplingAllowed = enabled;
|
| - forceLostContext(WebGLRenderingContext::AutoRecoverSyntheticLostContext);
|
| - }
|
| -}
|
| -
|
| -void WebGLRenderingContext::findNewMaxEnabledAttribIndex()
|
| -{
|
| - // Trace backwards from the current max to find the new max enabled attrib index
|
| - int startIndex = m_onePlusMaxEnabledAttribIndex - 1;
|
| - for (int i = startIndex; i >= 0; --i) {
|
| - if (m_boundVertexArrayObject->getVertexAttribState(i).enabled) {
|
| - m_onePlusMaxEnabledAttribIndex = i + 1;
|
| - return;
|
| - }
|
| - }
|
| - m_onePlusMaxEnabledAttribIndex = 0;
|
| -}
|
| -
|
| -void WebGLRenderingContext::findNewMaxNonDefaultTextureUnit()
|
| -{
|
| - // Trace backwards from the current max to find the new max non-default texture unit
|
| - int startIndex = m_onePlusMaxNonDefaultTextureUnit - 1;
|
| - for (int i = startIndex; i >= 0; --i) {
|
| - if (m_textureUnits[i].m_texture2DBinding
|
| - || m_textureUnits[i].m_textureCubeMapBinding) {
|
| - m_onePlusMaxNonDefaultTextureUnit = i + 1;
|
| - return;
|
| - }
|
| - }
|
| - m_onePlusMaxNonDefaultTextureUnit = 0;
|
| -}
|
| -
|
| } // namespace WebCore
|
|
|
Chromium Code Reviews
Issue 24096029:
Moved the majority of WebGL functionality into WebGLRenderingContextBase (Closed)
Base URL: svn://svn.chromium.org/blink/trunk