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Unified Diff: tools/gpu/gl/null/NullGLContext.cpp

Issue 1849463002: rename sk_gpu_test::GLContext to sk_gpu_test::GLTestContext (Closed) Base URL: https://chromium.googlesource.com/skia.git@move
Patch Set: readd gpu.gypi Created 4 years, 9 months ago
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Index: tools/gpu/gl/null/NullGLContext.cpp
diff --git a/tools/gpu/gl/null/NullGLContext.cpp b/tools/gpu/gl/null/NullGLContext.cpp
deleted file mode 100644
index 4781c90e4f1b201f5326db19ec693d989c554067..0000000000000000000000000000000000000000
--- a/tools/gpu/gl/null/NullGLContext.cpp
+++ /dev/null
@@ -1,630 +0,0 @@
-
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "NullGLContext.h"
-#include "gl/GrGLTestInterface.h"
-#include "gl/GrGLDefines.h"
-#include "gl/GrGLInterface.h"
-#include "gl/GrGLTypes.h"
-#include "SkMutex.h"
-#include "SkTDArray.h"
-
-namespace {
-
-class BufferObj {
-public:
- BufferObj(GrGLuint id) : fID(id), fDataPtr(nullptr), fSize(0), fMapped(false) {}
- ~BufferObj() { delete[] fDataPtr; }
-
- void allocate(GrGLsizeiptr size, const GrGLchar* dataPtr) {
- if (fDataPtr) {
- SkASSERT(0 != fSize);
- delete[] fDataPtr;
- }
-
- fSize = size;
- fDataPtr = new char[size];
- }
-
- GrGLuint id() const { return fID; }
- GrGLchar* dataPtr() { return fDataPtr; }
- GrGLsizeiptr size() const { return fSize; }
-
- void setMapped(bool mapped) { fMapped = mapped; }
- bool mapped() const { return fMapped; }
-
-private:
- GrGLuint fID;
- GrGLchar* fDataPtr;
- GrGLsizeiptr fSize; // size in bytes
- bool fMapped;
-};
-
-// This class maintains a sparsely populated array of buffer pointers.
-class BufferManager {
-public:
- BufferManager() : fFreeListHead(kFreeListEnd) {}
-
- ~BufferManager() {
- // nullptr out the entries that are really free list links rather than ptrs before deleting.
- intptr_t curr = fFreeListHead;
- while (kFreeListEnd != curr) {
- intptr_t next = reinterpret_cast<intptr_t>(fBuffers[SkToS32(curr)]);
- fBuffers[SkToS32(curr)] = nullptr;
- curr = next;
- }
-
- fBuffers.deleteAll();
- }
-
- BufferObj* lookUp(GrGLuint id) {
- BufferObj* buffer = fBuffers[id];
- SkASSERT(buffer && buffer->id() == id);
- return buffer;
- }
-
- BufferObj* create() {
- GrGLuint id;
- BufferObj* buffer;
-
- if (kFreeListEnd == fFreeListHead) {
- // no free slots - create a new one
- id = fBuffers.count();
- buffer = new BufferObj(id);
- *fBuffers.append() = buffer;
- } else {
- // grab the head of the free list and advance the head to the next free slot.
- id = static_cast<GrGLuint>(fFreeListHead);
- fFreeListHead = reinterpret_cast<intptr_t>(fBuffers[id]);
-
- buffer = new BufferObj(id);
- fBuffers[id] = buffer;
- }
-
- return buffer;
- }
-
- void free(BufferObj* buffer) {
- SkASSERT(fBuffers.count() > 0);
-
- GrGLuint id = buffer->id();
- delete buffer;
-
- fBuffers[id] = reinterpret_cast<BufferObj*>(fFreeListHead);
- fFreeListHead = id;
- }
-
-private:
- static const intptr_t kFreeListEnd = -1;
- // Index of the first entry of fBuffers in the free list. Free slots in fBuffers are indices to
- // the next free slot. The last free slot has a value of kFreeListEnd.
- intptr_t fFreeListHead;
- SkTDArray<BufferObj*> fBuffers;
-};
-
-/** Null interface implementation */
-class NullInterface : public GrGLTestInterface {
-public:
- NullInterface()
- : fCurrArrayBuffer(0)
- , fCurrElementArrayBuffer(0)
- , fCurrPixelPackBuffer(0)
- , fCurrPixelUnpackBuffer(0)
- , fCurrShaderID(0)
- , fCurrGenericID(0)
- , fCurrUniformLocation(0) {
- this->init(kGL_GrGLStandard);
- }
-
- GrGLenum checkFramebufferStatus(GrGLenum target) override {
- return GR_GL_FRAMEBUFFER_COMPLETE;
- }
-
- GrGLvoid genBuffers(GrGLsizei n, GrGLuint* ids) override {
- for (int i = 0; i < n; ++i) {
- BufferObj* buffer = fBufferManager.create();
- ids[i] = buffer->id();
- }
- }
-
- GrGLvoid bufferData(GrGLenum target, GrGLsizeiptr size, const GrGLvoid* data,
- GrGLenum usage) override {
- GrGLuint id = 0;
-
- switch (target) {
- case GR_GL_ARRAY_BUFFER:
- id = fCurrArrayBuffer;
- break;
- case GR_GL_ELEMENT_ARRAY_BUFFER:
- id = fCurrElementArrayBuffer;
- break;
- case GR_GL_PIXEL_PACK_BUFFER:
- id = fCurrPixelPackBuffer;
- break;
- case GR_GL_PIXEL_UNPACK_BUFFER:
- id = fCurrPixelUnpackBuffer;
- break;
- default:
- SkFAIL("Unexpected target to nullGLBufferData");
- break;
- }
-
- if (id > 0) {
- BufferObj* buffer = fBufferManager.lookUp(id);
- buffer->allocate(size, (const GrGLchar*) data);
- }
- }
-
- GrGLuint createProgram() override {
- return ++fCurrProgramID;
- }
-
- GrGLuint createShader(GrGLenum type) override {
- return ++fCurrShaderID;
- }
-
- GrGLvoid bindBuffer(GrGLenum target, GrGLuint buffer) override {
- switch (target) {
- case GR_GL_ARRAY_BUFFER:
- fCurrArrayBuffer = buffer;
- break;
- case GR_GL_ELEMENT_ARRAY_BUFFER:
- fCurrElementArrayBuffer = buffer;
- break;
- case GR_GL_PIXEL_PACK_BUFFER:
- fCurrPixelPackBuffer = buffer;
- break;
- case GR_GL_PIXEL_UNPACK_BUFFER:
- fCurrPixelUnpackBuffer = buffer;
- break;
- }
- }
-
- // deleting a bound buffer has the side effect of binding 0
- GrGLvoid deleteBuffers(GrGLsizei n, const GrGLuint* ids) override {
- for (int i = 0; i < n; ++i) {
- if (ids[i] == fCurrArrayBuffer) {
- fCurrArrayBuffer = 0;
- }
- if (ids[i] == fCurrElementArrayBuffer) {
- fCurrElementArrayBuffer = 0;
- }
- if (ids[i] == fCurrPixelPackBuffer) {
- fCurrPixelPackBuffer = 0;
- }
- if (ids[i] == fCurrPixelUnpackBuffer) {
- fCurrPixelUnpackBuffer = 0;
- }
-
- BufferObj* buffer = fBufferManager.lookUp(ids[i]);
- fBufferManager.free(buffer);
- }
- }
-
- GrGLvoid genFramebuffers(GrGLsizei n, GrGLuint *framebuffers) override {
- this->genGenericIds(n, framebuffers);
- }
-
- GrGLvoid genQueries(GrGLsizei n, GrGLuint *ids) override { this->genGenericIds(n, ids); }
-
- GrGLvoid genRenderbuffers(GrGLsizei n, GrGLuint *renderbuffers) override {
- this->genGenericIds(n, renderbuffers);
- }
-
- GrGLvoid genTextures(GrGLsizei n, GrGLuint *textures) override {
- this->genGenericIds(n, textures);
- }
-
- GrGLvoid genVertexArrays(GrGLsizei n, GrGLuint *arrays) override {
- this->genGenericIds(n, arrays);
- }
-
- GrGLenum getError() override { return GR_GL_NO_ERROR; }
-
- GrGLvoid getIntegerv(GrGLenum pname, GrGLint* params) override {
- // TODO: remove from Ganesh the #defines for gets we don't use.
- // We would like to minimize gets overall due to performance issues
- switch (pname) {
- case GR_GL_CONTEXT_PROFILE_MASK:
- *params = GR_GL_CONTEXT_COMPATIBILITY_PROFILE_BIT;
- break;
- case GR_GL_STENCIL_BITS:
- *params = 8;
- break;
- case GR_GL_SAMPLES:
- *params = 1;
- break;
- case GR_GL_FRAMEBUFFER_BINDING:
- *params = 0;
- break;
- case GR_GL_VIEWPORT:
- params[0] = 0;
- params[1] = 0;
- params[2] = 800;
- params[3] = 600;
- break;
- case GR_GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS:
- case GR_GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS:
- case GR_GL_MAX_TEXTURE_IMAGE_UNITS:
- case GR_GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS:
- *params = 8;
- break;
- case GR_GL_MAX_TEXTURE_COORDS:
- *params = 8;
- break;
- case GR_GL_MAX_VERTEX_UNIFORM_VECTORS:
- *params = kDefaultMaxVertexUniformVectors;
- break;
- case GR_GL_MAX_FRAGMENT_UNIFORM_VECTORS:
- *params = kDefaultMaxFragmentUniformVectors;
- break;
- case GR_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS:
- *params = 16 * 4;
- break;
- case GR_GL_NUM_COMPRESSED_TEXTURE_FORMATS:
- *params = 0;
- break;
- case GR_GL_COMPRESSED_TEXTURE_FORMATS:
- break;
- case GR_GL_MAX_TEXTURE_SIZE:
- *params = 8192;
- break;
- case GR_GL_MAX_RENDERBUFFER_SIZE:
- *params = 8192;
- break;
- case GR_GL_MAX_SAMPLES:
- *params = 32;
- break;
- case GR_GL_MAX_VERTEX_ATTRIBS:
- *params = kDefaultMaxVertexAttribs;
- break;
- case GR_GL_MAX_VARYING_VECTORS:
- *params = kDefaultMaxVaryingVectors;
- break;
- case GR_GL_NUM_EXTENSIONS: {
- GrGLint i = 0;
- while (kExtensions[i++]);
- *params = i;
- break;
- }
- default:
- SkFAIL("Unexpected pname to GetIntegerv");
- }
- }
-
- GrGLvoid getProgramiv(GrGLuint program, GrGLenum pname, GrGLint* params) override {
- this->getShaderOrProgramiv(program, pname, params);
- }
-
- GrGLvoid getProgramInfoLog(GrGLuint program, GrGLsizei bufsize, GrGLsizei* length,
- char* infolog) override {
- this->getInfoLog(program, bufsize, length, infolog);
- }
-
- GrGLvoid getMultisamplefv(GrGLenum pname, GrGLuint index, GrGLfloat* val) override {
- val[0] = val[1] = 0.5f;
- }
-
- GrGLvoid getQueryiv(GrGLenum GLtarget, GrGLenum pname, GrGLint *params) override {
- switch (pname) {
- case GR_GL_CURRENT_QUERY:
- *params = 0;
- break;
- case GR_GL_QUERY_COUNTER_BITS:
- *params = 32;
- break;
- default:
- SkFAIL("Unexpected pname passed GetQueryiv.");
- }
- }
-
- GrGLvoid getQueryObjecti64v(GrGLuint id, GrGLenum pname, GrGLint64 *params) override {
- this->queryResult(id, pname, params);
- }
-
- GrGLvoid getQueryObjectiv(GrGLuint id, GrGLenum pname, GrGLint *params) override {
- this->queryResult(id, pname, params);
- }
-
- GrGLvoid getQueryObjectui64v(GrGLuint id, GrGLenum pname, GrGLuint64 *params) override {
- this->queryResult(id, pname, params);
- }
-
- GrGLvoid getQueryObjectuiv(GrGLuint id, GrGLenum pname, GrGLuint *params) override {
- this->queryResult(id, pname, params);
- }
-
- GrGLvoid getShaderiv(GrGLuint shader, GrGLenum pname, GrGLint* params) override {
- this->getShaderOrProgramiv(shader, pname, params);
- }
-
- GrGLvoid getShaderInfoLog(GrGLuint shader, GrGLsizei bufsize, GrGLsizei* length,
- char* infolog) override {
- this->getInfoLog(shader, bufsize, length, infolog);
- }
-
- const GrGLubyte* getString(GrGLenum name) override {
- switch (name) {
- case GR_GL_EXTENSIONS:
- return CombinedExtensionString();
- case GR_GL_VERSION:
- return (const GrGLubyte*)"4.0 Null GL";
- case GR_GL_SHADING_LANGUAGE_VERSION:
- return (const GrGLubyte*)"4.20.8 Null GLSL";
- case GR_GL_VENDOR:
- return (const GrGLubyte*)"Null Vendor";
- case GR_GL_RENDERER:
- return (const GrGLubyte*)"The Null (Non-)Renderer";
- default:
- SkFAIL("Unexpected name passed to GetString");
- return nullptr;
- }
- }
-
- const GrGLubyte* getStringi(GrGLenum name, GrGLuint i) override {
- switch (name) {
- case GR_GL_EXTENSIONS: {
- GrGLint count;
- this->getIntegerv(GR_GL_NUM_EXTENSIONS, &count);
- if ((GrGLint)i <= count) {
- return (const GrGLubyte*) kExtensions[i];
- } else {
- return nullptr;
- }
- }
- default:
- SkFAIL("Unexpected name passed to GetStringi");
- return nullptr;
- }
- }
-
- GrGLint getUniformLocation(GrGLuint program, const char* name) override {
- return ++fCurrUniformLocation;
- }
-
- GrGLvoid* mapBufferRange(GrGLenum target, GrGLintptr offset, GrGLsizeiptr length,
- GrGLbitfield access) override {
- GrGLuint id = 0;
- switch (target) {
- case GR_GL_ARRAY_BUFFER:
- id = fCurrArrayBuffer;
- break;
- case GR_GL_ELEMENT_ARRAY_BUFFER:
- id = fCurrElementArrayBuffer;
- break;
- case GR_GL_PIXEL_PACK_BUFFER:
- id = fCurrPixelPackBuffer;
- break;
- case GR_GL_PIXEL_UNPACK_BUFFER:
- id = fCurrPixelUnpackBuffer;
- break;
- }
-
- if (id > 0) {
- // We just ignore the offset and length here.
- BufferObj* buffer = fBufferManager.lookUp(id);
- SkASSERT(!buffer->mapped());
- buffer->setMapped(true);
- return buffer->dataPtr();
- }
- return nullptr;
- }
-
- GrGLvoid* mapBuffer(GrGLenum target, GrGLenum access) override {
- GrGLuint id = 0;
- switch (target) {
- case GR_GL_ARRAY_BUFFER:
- id = fCurrArrayBuffer;
- break;
- case GR_GL_ELEMENT_ARRAY_BUFFER:
- id = fCurrElementArrayBuffer;
- break;
- case GR_GL_PIXEL_PACK_BUFFER:
- id = fCurrPixelPackBuffer;
- break;
- case GR_GL_PIXEL_UNPACK_BUFFER:
- id = fCurrPixelUnpackBuffer;
- break;
- }
-
- if (id > 0) {
- BufferObj* buffer = fBufferManager.lookUp(id);
- SkASSERT(!buffer->mapped());
- buffer->setMapped(true);
- return buffer->dataPtr();
- }
-
- SkASSERT(false);
- return nullptr; // no buffer bound to target
- }
-
- GrGLboolean unmapBuffer(GrGLenum target) override {
- GrGLuint id = 0;
- switch (target) {
- case GR_GL_ARRAY_BUFFER:
- id = fCurrArrayBuffer;
- break;
- case GR_GL_ELEMENT_ARRAY_BUFFER:
- id = fCurrElementArrayBuffer;
- break;
- case GR_GL_PIXEL_PACK_BUFFER:
- id = fCurrPixelPackBuffer;
- break;
- case GR_GL_PIXEL_UNPACK_BUFFER:
- id = fCurrPixelUnpackBuffer;
- break;
- }
- if (id > 0) {
- BufferObj* buffer = fBufferManager.lookUp(id);
- SkASSERT(buffer->mapped());
- buffer->setMapped(false);
- return GR_GL_TRUE;
- }
-
- GrAlwaysAssert(false);
- return GR_GL_FALSE; // GR_GL_INVALID_OPERATION;
- }
-
- GrGLvoid getBufferParameteriv(GrGLenum target, GrGLenum pname, GrGLint* params) override {
- switch (pname) {
- case GR_GL_BUFFER_MAPPED: {
- *params = GR_GL_FALSE;
- GrGLuint id = 0;
- switch (target) {
- case GR_GL_ARRAY_BUFFER:
- id = fCurrArrayBuffer;
- break;
- case GR_GL_ELEMENT_ARRAY_BUFFER:
- id = fCurrElementArrayBuffer;
- break;
- case GR_GL_PIXEL_PACK_BUFFER:
- id = fCurrPixelPackBuffer;
- break;
- case GR_GL_PIXEL_UNPACK_BUFFER:
- id = fCurrPixelUnpackBuffer;
- break;
- }
- if (id > 0) {
- BufferObj* buffer = fBufferManager.lookUp(id);
- if (buffer->mapped()) {
- *params = GR_GL_TRUE;
- }
- }
- break; }
- default:
- SkFAIL("Unexpected pname to GetBufferParamateriv");
- break;
- }
- };
-
-private:
- BufferManager fBufferManager;
- GrGLuint fCurrArrayBuffer;
- GrGLuint fCurrElementArrayBuffer;
- GrGLuint fCurrPixelPackBuffer;
- GrGLuint fCurrPixelUnpackBuffer;
- GrGLuint fCurrProgramID;
- GrGLuint fCurrShaderID;
- GrGLuint fCurrGenericID;
- GrGLuint fCurrUniformLocation;
-
- // the OpenGLES 2.0 spec says this must be >= 128
- static const GrGLint kDefaultMaxVertexUniformVectors = 128;
-
- // the OpenGLES 2.0 spec says this must be >=16
- static const GrGLint kDefaultMaxFragmentUniformVectors = 16;
-
- // the OpenGLES 2.0 spec says this must be >= 8
- static const GrGLint kDefaultMaxVertexAttribs = 8;
-
- // the OpenGLES 2.0 spec says this must be >= 8
- static const GrGLint kDefaultMaxVaryingVectors = 8;
-
- static const char* kExtensions[];
-
- static const GrGLubyte* CombinedExtensionString() {
- static SkString gExtString;
- static SkMutex gMutex;
- gMutex.acquire();
- if (0 == gExtString.size()) {
- int i = 0;
- while (kExtensions[i]) {
- if (i > 0) {
- gExtString.append(" ");
- }
- gExtString.append(kExtensions[i]);
- ++i;
- }
- }
- gMutex.release();
- return (const GrGLubyte*) gExtString.c_str();
- }
-
- GrGLvoid genGenericIds(GrGLsizei n, GrGLuint* ids) {
- for (int i = 0; i < n; ++i) {
- ids[i] = ++fCurrGenericID;
- }
- }
-
- GrGLvoid getInfoLog(GrGLuint object, GrGLsizei bufsize, GrGLsizei* length,
- char* infolog) {
- if (length) {
- *length = 0;
- }
- if (bufsize > 0) {
- *infolog = 0;
- }
- }
-
- GrGLvoid getShaderOrProgramiv(GrGLuint object, GrGLenum pname, GrGLint* params) {
- switch (pname) {
- case GR_GL_LINK_STATUS: // fallthru
- case GR_GL_COMPILE_STATUS:
- *params = GR_GL_TRUE;
- break;
- case GR_GL_INFO_LOG_LENGTH:
- *params = 0;
- break;
- // we don't expect any other pnames
- default:
- SkFAIL("Unexpected pname to GetProgramiv");
- break;
- }
- }
-
- template <typename T>
- void queryResult(GrGLenum GLtarget, GrGLenum pname, T *params) {
- switch (pname) {
- case GR_GL_QUERY_RESULT_AVAILABLE:
- *params = GR_GL_TRUE;
- break;
- case GR_GL_QUERY_RESULT:
- *params = 0;
- break;
- default:
- SkFAIL("Unexpected pname passed to GetQueryObject.");
- break;
- }
- }
-
- typedef GrGLTestInterface INHERITED;
-};
-
-const char* NullInterface::kExtensions[] = {
- "GL_ARB_framebuffer_object",
- "GL_ARB_blend_func_extended",
- "GL_ARB_timer_query",
- "GL_ARB_draw_buffers",
- "GL_ARB_occlusion_query",
- "GL_EXT_stencil_wrap",
- nullptr, // signifies the end of the array.
-};
-
-class NullGLContext : public sk_gpu_test::GLContext {
-public:
- NullGLContext() { this->init(new NullInterface); }
- ~NullGLContext() override { this->teardown(); }
-
-private:
- void onPlatformMakeCurrent() const override {};
- void onPlatformSwapBuffers() const override {}
- GrGLFuncPtr onPlatformGetProcAddress(const char*) const override { return nullptr; }
-};
-} // anonymous namespace
-
-namespace sk_gpu_test {
-GLContext* CreateNullGLContext() {
- GLContext* ctx = new NullGLContext();
- if (ctx->isValid()) {
- return ctx;
- }
- delete ctx;
- return nullptr;
-}
-} // namespace sk_gpu_test
-
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