Implement WebKit::WebUnitTestSupport::createLayerTreeViewForTesting()

cc/test/fake_web_graphics_context_3d.cc

-// Copyright 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "cc/test/fake_web_graphics_context_3d.h"
-
-#include <algorithm>
-#include <string>
-
-#include "base/logging.h"
-#include "gpu/GLES2/gl2extchromium.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/khronos/GLES2/gl2ext.h"
-
-using WebKit::WGC3Dboolean;
-using WebKit::WGC3Denum;
-using WebKit::WebGLId;
-using WebKit::WebGraphicsContext3D;
-
-namespace cc {
-
-static const WebGLId kBufferId = 1;
-static const WebGLId kFramebufferId = 2;
-static const WebGLId kProgramId = 3;
-static const WebGLId kRenderbufferId = 4;
-static const WebGLId kShaderId = 5;
-
-static unsigned s_context_id = 1;
-
-const WebGLId FakeWebGraphicsContext3D::kExternalTextureId = 1337;
-
-FakeWebGraphicsContext3D::FakeWebGraphicsContext3D()
-    : context_id_(s_context_id++),
-      next_texture_id_(1),
-      have_extension_io_surface_(false),
-      have_extension_egl_image_(false),
-      times_make_current_succeeds_(-1),
-      times_bind_texture_succeeds_(-1),
-      times_end_query_succeeds_(-1),
-      context_lost_(false),
-      context_lost_callback_(NULL),
-      width_(0),
-      height_(0) {
-}
-
-FakeWebGraphicsContext3D::FakeWebGraphicsContext3D(
-    const WebGraphicsContext3D::Attributes& attributes)
-    : context_id_(s_context_id++),
-      next_texture_id_(1),
-      attributes_(attributes),
-      have_extension_io_surface_(false),
-      have_extension_egl_image_(false),
-      times_make_current_succeeds_(-1),
-      times_bind_texture_succeeds_(-1),
-      times_end_query_succeeds_(-1),
-      context_lost_(false),
-      context_lost_callback_(NULL),
-      width_(0),
-      height_(0) {
-}
-
-FakeWebGraphicsContext3D::~FakeWebGraphicsContext3D() {
-}
-
-bool FakeWebGraphicsContext3D::makeContextCurrent() {
-  if (times_make_current_succeeds_ >= 0) {
-    if (!times_make_current_succeeds_) {
-      loseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
-                          GL_INNOCENT_CONTEXT_RESET_ARB);
-    }
-    --times_make_current_succeeds_;
-  }
-  return !context_lost_;
-}
-
-int FakeWebGraphicsContext3D::width() {
-  return width_;
-}
-
-int FakeWebGraphicsContext3D::height() {
-  return height_;
-}
-
-void FakeWebGraphicsContext3D::reshape(int width, int height) {
-  width_ = width;
-  height_ = height;
-}
-
-bool FakeWebGraphicsContext3D::isGLES2Compliant() {
-  return false;
-}
-
-bool FakeWebGraphicsContext3D::readBackFramebuffer(
-    unsigned char* pixels,
-    size_t bufferSize,
-    WebGLId framebuffer,
-    int width,
-    int height) {
-  return false;
-}
-
-WebGLId FakeWebGraphicsContext3D::getPlatformTextureId() {
-  return 0;
-}
-
-bool FakeWebGraphicsContext3D::isContextLost() {
-  return context_lost_;
-}
-
-WGC3Denum FakeWebGraphicsContext3D::getGraphicsResetStatusARB() {
-  return context_lost_ ? GL_UNKNOWN_CONTEXT_RESET_ARB : GL_NO_ERROR;
-}
-
-void* FakeWebGraphicsContext3D::mapBufferSubDataCHROMIUM(
-    WGC3Denum target,
-    WebKit::WGC3Dintptr offset,
-    WebKit::WGC3Dsizeiptr size,
-    WGC3Denum access) {
-  return 0;
-}
-
-void* FakeWebGraphicsContext3D::mapTexSubImage2DCHROMIUM(
-    WGC3Denum target,
-    WebKit::WGC3Dint level,
-    WebKit::WGC3Dint xoffset,
-    WebKit::WGC3Dint yoffset,
-    WebKit::WGC3Dsizei width,
-    WebKit::WGC3Dsizei height,
-    WGC3Denum format,
-    WGC3Denum type,
-    WGC3Denum access) {
-  return 0;
-}
-
-WebKit::WebString FakeWebGraphicsContext3D::getRequestableExtensionsCHROMIUM() {
-  return WebKit::WebString();
-}
-
-WGC3Denum FakeWebGraphicsContext3D::checkFramebufferStatus(
-    WGC3Denum target) {
-  if (context_lost_)
-    return GL_FRAMEBUFFER_UNDEFINED_OES;
-  return GL_FRAMEBUFFER_COMPLETE;
-}
-
-bool FakeWebGraphicsContext3D::getActiveAttrib(
-    WebGLId program,
-    WebKit::WGC3Duint index,
-    ActiveInfo&) {
-  return false;
-}
-
-bool FakeWebGraphicsContext3D::getActiveUniform(
-    WebGLId program,
-    WebKit::WGC3Duint index,
-    ActiveInfo&) {
-  return false;
-}
-
-WebKit::WGC3Dint FakeWebGraphicsContext3D::getAttribLocation(
-    WebGLId program,
-    const WebKit::WGC3Dchar* name) {
-  return 0;
-}
-
-WebGraphicsContext3D::Attributes
-    FakeWebGraphicsContext3D::getContextAttributes() {
-  return attributes_;
-}
-
-WGC3Denum FakeWebGraphicsContext3D::getError() {
-  return 0;
-}
-
-void FakeWebGraphicsContext3D::getIntegerv(
-    WGC3Denum pname,
-    WebKit::WGC3Dint* value) {
-  if (pname == GL_MAX_TEXTURE_SIZE)
-    *value = 1024;
-}
-
-void FakeWebGraphicsContext3D::getProgramiv(
-    WebGLId program,
-    WGC3Denum pname,
-    WebKit::WGC3Dint* value) {
-  if (pname == GL_LINK_STATUS)
-    *value = 1;
-}
-
-WebKit::WebString FakeWebGraphicsContext3D::getProgramInfoLog(
-    WebGLId program) {
-  return WebKit::WebString();
-}
-
-void FakeWebGraphicsContext3D::getShaderiv(
-    WebGLId shader,
-    WGC3Denum pname,
-    WebKit::WGC3Dint* value) {
-  if (pname == GL_COMPILE_STATUS)
-    *value = 1;
-}
-
-WebKit::WebString FakeWebGraphicsContext3D::getShaderInfoLog(
-    WebGLId shader) {
-  return WebKit::WebString();
-}
-
-WebKit::WebString FakeWebGraphicsContext3D::getShaderSource(
-    WebGLId shader) {
-  return WebKit::WebString();
-}
-
-WebKit::WebString FakeWebGraphicsContext3D::getString(WGC3Denum name) {
-  std::string string;
-
-  if (name == GL_EXTENSIONS) {
-    if (have_extension_io_surface_)
-      string += "GL_CHROMIUM_iosurface GL_ARB_texture_rectangle ";
-    if (have_extension_egl_image_)
-      string += "GL_OES_EGL_image_external";
-  }
-
-  return WebKit::WebString::fromUTF8(string.c_str());
-}
-
-WebKit::WGC3Dint FakeWebGraphicsContext3D::getUniformLocation(
-    WebGLId program,
-    const WebKit::WGC3Dchar* name) {
-  return 0;
-}
-
-WebKit::WGC3Dsizeiptr FakeWebGraphicsContext3D::getVertexAttribOffset(
-    WebKit::WGC3Duint index,
-    WGC3Denum pname) {
-  return 0;
-}
-
-WGC3Dboolean FakeWebGraphicsContext3D::isBuffer(
-    WebGLId buffer) {
-  return false;
-}
-
-WGC3Dboolean FakeWebGraphicsContext3D::isEnabled(
-    WGC3Denum cap) {
-  return false;
-}
-
-WGC3Dboolean FakeWebGraphicsContext3D::isFramebuffer(
-    WebGLId framebuffer) {
-  return false;
-}
-
-WGC3Dboolean FakeWebGraphicsContext3D::isProgram(
-    WebGLId program) {
-  return false;
-}
-
-WGC3Dboolean FakeWebGraphicsContext3D::isRenderbuffer(
-    WebGLId renderbuffer) {
-  return false;
-}
-
-WGC3Dboolean FakeWebGraphicsContext3D::isShader(
-    WebGLId shader) {
-  return false;
-}
-
-WGC3Dboolean FakeWebGraphicsContext3D::isTexture(
-    WebGLId texture) {
-  return false;
-}
-
-WebGLId FakeWebGraphicsContext3D::createBuffer() {
-  return kBufferId | context_id_ << 16;
-}
-
-void FakeWebGraphicsContext3D::deleteBuffer(WebKit::WebGLId id) {
-  EXPECT_EQ(kBufferId | context_id_ << 16, id);
-}
-
-WebGLId FakeWebGraphicsContext3D::createFramebuffer() {
-  return kFramebufferId | context_id_ << 16;
-}
-
-void FakeWebGraphicsContext3D::deleteFramebuffer(WebKit::WebGLId id) {
-  EXPECT_EQ(kFramebufferId | context_id_ << 16, id);
-}
-
-WebGLId FakeWebGraphicsContext3D::createProgram() {
-  return kProgramId | context_id_ << 16;
-}
-
-void FakeWebGraphicsContext3D::deleteProgram(WebKit::WebGLId id) {
-  EXPECT_EQ(kProgramId | context_id_ << 16, id);
-}
-
-WebGLId FakeWebGraphicsContext3D::createRenderbuffer() {
-  return kRenderbufferId | context_id_ << 16;
-}
-
-void FakeWebGraphicsContext3D::deleteRenderbuffer(WebKit::WebGLId id) {
-  EXPECT_EQ(kRenderbufferId | context_id_ << 16, id);
-}
-
-WebGLId FakeWebGraphicsContext3D::createShader(WGC3Denum) {
-  return kShaderId | context_id_ << 16;
-}
-
-void FakeWebGraphicsContext3D::deleteShader(WebKit::WebGLId id) {
-  EXPECT_EQ(kShaderId | context_id_ << 16, id);
-}
-
-WebGLId FakeWebGraphicsContext3D::createTexture() {
-  WebGLId texture_id = NextTextureId();
-  DCHECK_NE(texture_id, kExternalTextureId);
-  textures_.push_back(texture_id);
-  return texture_id;
-}
-
-void FakeWebGraphicsContext3D::deleteTexture(WebGLId texture_id) {
-  DCHECK(std::find(textures_.begin(), textures_.end(), texture_id) !=
-         textures_.end());
-  textures_.erase(std::find(textures_.begin(), textures_.end(), texture_id));
-}
-
-void FakeWebGraphicsContext3D::attachShader(WebGLId program, WebGLId shader) {
-  EXPECT_EQ(kProgramId | context_id_ << 16, program);
-  EXPECT_EQ(kShaderId | context_id_ << 16, shader);
-}
-
-void FakeWebGraphicsContext3D::useProgram(WebGLId program) {
-  if (!program)
-    return;
-  EXPECT_EQ(kProgramId | context_id_ << 16, program);
-}
-
-void FakeWebGraphicsContext3D::bindBuffer(WGC3Denum target, WebGLId buffer) {
-  if (!buffer)
-    return;
-  EXPECT_EQ(kBufferId | context_id_ << 16, buffer);
-}
-
-void FakeWebGraphicsContext3D::bindFramebuffer(
-    WGC3Denum target, WebGLId framebuffer) {
-  if (!framebuffer)
-    return;
-  EXPECT_EQ(kFramebufferId | context_id_ << 16, framebuffer);
-}
-
-void FakeWebGraphicsContext3D::bindRenderbuffer(
-      WGC3Denum target, WebGLId renderbuffer) { 
-  if (!renderbuffer)
-    return;
- EXPECT_EQ(kRenderbufferId | context_id_ << 16, renderbuffer);
-}
-
-void FakeWebGraphicsContext3D::bindTexture(
-    WGC3Denum target, WebGLId texture_id) {
-  if (times_bind_texture_succeeds_ >= 0) {
-    if (!times_bind_texture_succeeds_) {
-      loseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
-                          GL_INNOCENT_CONTEXT_RESET_ARB);
-    }
-    --times_bind_texture_succeeds_;
-  }
-
-  if (!texture_id)
-    return;
-  if (texture_id == kExternalTextureId)
-    return;
-  DCHECK(std::find(textures_.begin(), textures_.end(), texture_id) !=
-         textures_.end());
-  used_textures_.insert(texture_id);
-}
-
-WebGLId FakeWebGraphicsContext3D::createQueryEXT() {
-  return 1;
-}
-
-WGC3Dboolean FakeWebGraphicsContext3D::isQueryEXT(WebGLId query) {
-  return true;
-}
-
-void FakeWebGraphicsContext3D::endQueryEXT(WebKit::WGC3Denum target) {
-  if (times_end_query_succeeds_ >= 0) {
-    if (!times_end_query_succeeds_) {
-      loseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
-                          GL_INNOCENT_CONTEXT_RESET_ARB);
-    }
-    --times_end_query_succeeds_;
-  }
-}
-
-void FakeWebGraphicsContext3D::getQueryObjectuivEXT(
-    WebKit::WebGLId query,
-    WebKit::WGC3Denum pname,
-    WebKit::WGC3Duint* params) {
-  // If the context is lost, behave as if result is available.
-  if (pname == GL_QUERY_RESULT_AVAILABLE_EXT)
-    *params = 1;
-}
-
-void FakeWebGraphicsContext3D::setContextLostCallback(
-    WebGraphicsContextLostCallback* callback) {
-  context_lost_callback_ = callback;
-}
-
-void FakeWebGraphicsContext3D::loseContextCHROMIUM(WGC3Denum current,
-                                                   WGC3Denum other) {
-  if (context_lost_)
-    return;
-  context_lost_ = true;
-  if (context_lost_callback_)
-    context_lost_callback_->onContextLost();
-}
-
-WebKit::WebGLId FakeWebGraphicsContext3D::NextTextureId() {
-  WebGLId texture_id = next_texture_id_++;
-  DCHECK(texture_id < (1 << 16));
-  texture_id |= context_id_ << 16;
-  return texture_id;
-}
-
-}  // namespace cc