Revert of gpu: introduce glCopySubTextureCHROMIUM

gpu/command_buffer/service/gles2_cmd_decoder.cc

 // Copyright (c) 2012 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 "gpu/command_buffer/service/gles2_cmd_decoder.h"
 
 #include <stdio.h>
 
 #include <algorithm>
 #include <list>
@@ skipping 63 matching lines @@
 
 #if defined(OS_WIN)
 #include "base/win/win_util.h"
 #endif
 
 namespace gpu {
 namespace gles2 {
 
 namespace {
 
-const char kOESDerivativeExtension[] = "GL_OES_standard_derivatives";
-const char kEXTFragDepthExtension[] = "GL_EXT_frag_depth";
-const char kEXTDrawBuffersExtension[] = "GL_EXT_draw_buffers";
-const char kEXTShaderTextureLodExtension[] = "GL_EXT_shader_texture_lod";
-
-const GLfloat kIdentityMatrix[16] = {1.0f, 0.0f, 0.0f, 0.0f,
-                                     0.0f, 1.0f, 0.0f, 0.0f,
-                                     0.0f, 0.0f, 1.0f, 0.0f,
-                                     0.0f, 0.0f, 0.0f, 1.0f};
+static const char kOESDerivativeExtension[] = "GL_OES_standard_derivatives";
+static const char kEXTFragDepthExtension[] = "GL_EXT_frag_depth";
+static const char kEXTDrawBuffersExtension[] = "GL_EXT_draw_buffers";
+static const char kEXTShaderTextureLodExtension[] = "GL_EXT_shader_texture_lod";
 
 static bool PrecisionMeetsSpecForHighpFloat(GLint rangeMin,
                                             GLint rangeMax,
                                             GLint precision) {
   return (rangeMin >= 62) && (rangeMax >= 62) && (precision >= 16);
 }
 
 static void GetShaderPrecisionFormatImpl(GLenum shader_type,
                                          GLenum precision_type,
                                          GLint *range, GLint *precision) {
@@ skipping 831 matching lines @@
       const void * data);
 
   // Wrapper for TexImageIOSurface2DCHROMIUM.
   void DoTexImageIOSurface2DCHROMIUM(
       GLenum target,
       GLsizei width,
       GLsizei height,
       GLuint io_surface_id,
       GLuint plane);
 
-  void DoCopyTextureCHROMIUM(GLenum target,
-                             GLuint source_id,
-                             GLuint dest_id,
-                             GLenum internal_format,
-                             GLenum dest_type);
-
-  void DoCopySubTextureCHROMIUM(GLenum target,
-                                GLuint source_id,
-                                GLuint dest_id,
-                                GLint xoffset,
-                                GLint yoffset);
+  void DoCopyTextureCHROMIUM(
+      GLenum target,
+      GLuint source_id,
+      GLuint target_id,
+      GLint level,
+      GLenum internal_format,
+      GLenum dest_type);
 
   // Wrapper for TexStorage2DEXT.
   void DoTexStorage2DEXT(
       GLenum target,
       GLint levels,
       GLenum internal_format,
       GLsizei width,
       GLsizei height);
 
   void DoProduceTextureCHROMIUM(GLenum target, const GLbyte* key);
@@ skipping 696 matching lines @@
       const char* function_name,
       GLint level, GLsizei width, GLsizei height, GLenum format);
   bool ValidateCompressedTexFuncData(
       const char* function_name,
       GLsizei width, GLsizei height, GLenum format, size_t size);
   bool ValidateCompressedTexSubDimensions(
     const char* function_name,
     GLenum target, GLint level, GLint xoffset, GLint yoffset,
     GLsizei width, GLsizei height, GLenum format,
     Texture* texture);
-  bool ValidateCopyTextureCHROMIUM(const char* function_name,
-                                   GLenum target,
-                                   TextureRef* source_texture_ref,
-                                   TextureRef* dest_texture_ref,
-                                   GLenum dest_internal_format);
 
   void RenderWarning(const char* filename, int line, const std::string& msg);
   void PerformanceWarning(
       const char* filename, int line, const std::string& msg);
 
   const FeatureInfo::FeatureFlags& features() const {
     return feature_info_->feature_flags();
   }
 
   const FeatureInfo::Workarounds& workarounds() const {
@@ skipping 9255 matching lines @@
       return GL_LUMINANCE_ALPHA;
     case GL_BGRA8_EXT:
       return GL_BGRA_EXT;
     case GL_SRGB8_ALPHA8_EXT:
       return GL_SRGB_ALPHA_EXT;
     default:
       return GL_NONE;
   }
 }
 
-bool GLES2DecoderImpl::ValidateCopyTextureCHROMIUM(
-    const char* function_name,
-    GLenum target,
-    TextureRef* source_texture_ref,
-    TextureRef* dest_texture_ref,
-    GLenum dest_internal_format) {
+void GLES2DecoderImpl::DoCopyTextureCHROMIUM(
+    GLenum target, GLuint source_id, GLuint dest_id, GLint level,
+    GLenum internal_format, GLenum dest_type) {
+  TRACE_EVENT0("gpu", "GLES2DecoderImpl::DoCopyTextureCHROMIUM");
+
+  TextureRef* dest_texture_ref = GetTexture(dest_id);
+  TextureRef* source_texture_ref = GetTexture(source_id);
+
   if (!source_texture_ref || !dest_texture_ref) {
-    LOCAL_SET_GL_ERROR(GL_INVALID_VALUE, function_name, "unknown texture id");
-    return false;
+    LOCAL_SET_GL_ERROR(
+        GL_INVALID_VALUE, "glCopyTextureCHROMIUM", "unknown texture id");
+    return;
   }
 
   if (GL_TEXTURE_2D != target) {
-    LOCAL_SET_GL_ERROR(GL_INVALID_VALUE, function_name,
-                       "invalid texture target");
-    return false;
+    LOCAL_SET_GL_ERROR(
+        GL_INVALID_VALUE, "glCopyTextureCHROMIUM", "invalid texture target");
+    return;
   }
 
   Texture* source_texture = source_texture_ref->texture();
   Texture* dest_texture = dest_texture_ref->texture();
-  if (source_texture == dest_texture) {
-    LOCAL_SET_GL_ERROR(GL_INVALID_OPERATION, function_name,
-                       "source and destination textures are the same");
-    return false;
-  }
-
   if (dest_texture->target() != GL_TEXTURE_2D ||
       (source_texture->target() != GL_TEXTURE_2D &&
        source_texture->target() != GL_TEXTURE_RECTANGLE_ARB &&
        source_texture->target() != GL_TEXTURE_EXTERNAL_OES)) {
-    LOCAL_SET_GL_ERROR(GL_INVALID_VALUE, function_name,
+    LOCAL_SET_GL_ERROR(GL_INVALID_VALUE,
+                       "glCopyTextureCHROMIUM",
                        "invalid texture target binding");
-    return false;
+    return;
   }
 
-  GLenum source_type = 0;
-  GLenum source_internal_format = 0;
-  source_texture->GetLevelType(source_texture->target(), 0, &source_type,
-                               &source_internal_format);
+  int source_width, source_height, dest_width, dest_height;
 
-  // The destination format should be GL_RGB, or GL_RGBA. GL_ALPHA,
-  // GL_LUMINANCE, and GL_LUMINANCE_ALPHA are not supported because they are not
-  // renderable on some platforms.
-  bool valid_dest_format = dest_internal_format == GL_RGB ||
-                           dest_internal_format == GL_RGBA ||
-                           dest_internal_format == GL_BGRA_EXT;
-  bool valid_source_format = source_internal_format == GL_ALPHA ||
-                             source_internal_format == GL_RGB ||
-                             source_internal_format == GL_RGBA ||
-                             source_internal_format == GL_LUMINANCE ||
-                             source_internal_format == GL_LUMINANCE_ALPHA ||
-                             source_internal_format == GL_BGRA_EXT;
-  if (!valid_source_format || !valid_dest_format) {
-    LOCAL_SET_GL_ERROR(GL_INVALID_OPERATION, function_name,
-                       "invalid internal format");
-    return false;
-  }
-  return true;
-}
-
-void GLES2DecoderImpl::DoCopyTextureCHROMIUM(GLenum target,
-                                             GLuint source_id,
-                                             GLuint dest_id,
-                                             GLenum internal_format,
-                                             GLenum dest_type) {
-  TRACE_EVENT0("gpu", "GLES2DecoderImpl::DoCopyTextureCHROMIUM");
-
-  TextureRef* source_texture_ref = GetTexture(source_id);
-  TextureRef* dest_texture_ref = GetTexture(dest_id);
-  Texture* source_texture = source_texture_ref->texture();
-  Texture* dest_texture = dest_texture_ref->texture();
-  int source_width = 0;
-  int source_height = 0;
   gfx::GLImage* image =
       source_texture->GetLevelImage(source_texture->target(), 0);
   if (image) {
     gfx::Size size = image->GetSize();
     source_width = size.width();
     source_height = size.height();
     if (source_width <= 0 || source_height <= 0) {
       LOCAL_SET_GL_ERROR(
           GL_INVALID_VALUE,
           "glCopyTextureChromium", "invalid image size");
       return;
     }
   } else {
     if (!source_texture->GetLevelSize(
              source_texture->target(), 0, &source_width, &source_height)) {
       LOCAL_SET_GL_ERROR(GL_INVALID_VALUE,
                          "glCopyTextureChromium",
                          "source texture has no level 0");
       return;
     }
 
     // Check that this type of texture is allowed.
-    if (!texture_manager()->ValidForTarget(source_texture->target(), 0,
-                                           source_width, source_height, 1)) {
+    if (!texture_manager()->ValidForTarget(
+             source_texture->target(), level, source_width, source_height, 1)) {
       LOCAL_SET_GL_ERROR(
           GL_INVALID_VALUE, "glCopyTextureCHROMIUM", "Bad dimensions");
       return;
     }
   }
 
+  // Clear the source texture if necessary.
+  if (!texture_manager()->ClearTextureLevel(
+          this, source_texture_ref, source_texture->target(), 0)) {
+    LOCAL_SET_GL_ERROR(
+        GL_OUT_OF_MEMORY, "glCopyTextureCHROMIUM", "dimensions too big");
+    return;
+  }
+
   GLenum source_type = 0;
   GLenum source_internal_format = 0;
   source_texture->GetLevelType(
       source_texture->target(), 0, &source_type, &source_internal_format);
 
-  if (dest_texture->IsImmutable()) {
-    LOCAL_SET_GL_ERROR(GL_INVALID_OPERATION, "glCopyTextureCHROMIUM",
-                       "texture is immutable");
+  // The destination format should be GL_RGB, or GL_RGBA. GL_ALPHA,
+  // GL_LUMINANCE, and GL_LUMINANCE_ALPHA are not supported because they are not
+  // renderable on some platforms.
+  bool valid_dest_format = internal_format == GL_RGB ||
+                           internal_format == GL_RGBA ||
+                           internal_format == GL_BGRA_EXT;
+  bool valid_source_format = source_internal_format == GL_ALPHA ||
+                             source_internal_format == GL_RGB ||
+                             source_internal_format == GL_RGBA ||
+                             source_internal_format == GL_LUMINANCE ||
+                             source_internal_format == GL_LUMINANCE_ALPHA ||
+                             source_internal_format == GL_BGRA_EXT;
+  if (!valid_source_format || !valid_dest_format) {
+    LOCAL_SET_GL_ERROR(GL_INVALID_OPERATION,
+                       "glCopyTextureCHROMIUM",
+                       "invalid internal format");
     return;
   }
 
-  if (!ValidateCopyTextureCHROMIUM("glCopyTextureCHROMIUM", target,
-                                   source_texture_ref, dest_texture_ref,
-                                   internal_format)) {
-    return;
-  }
-
-  // Clear the source texture if necessary.
-  if (!texture_manager()->ClearTextureLevel(this, source_texture_ref,
-                                            source_texture->target(), 0)) {
-    LOCAL_SET_GL_ERROR(GL_OUT_OF_MEMORY, "glCopyTextureCHROMIUM",
-                       "dimensions too big");
-    return;
-  }
-
   // Defer initializing the CopyTextureCHROMIUMResourceManager until it is
   // needed because it takes 10s of milliseconds to initialize.
   if (!copy_texture_CHROMIUM_.get()) {
     LOCAL_COPY_REAL_GL_ERRORS_TO_WRAPPER("glCopyTextureCHROMIUM");
     copy_texture_CHROMIUM_.reset(new CopyTextureCHROMIUMResourceManager());
     copy_texture_CHROMIUM_->Initialize(this);
     RestoreCurrentFramebufferBindings();
     if (LOCAL_PEEK_GL_ERROR("glCopyTextureCHROMIUM") != GL_NO_ERROR)
       return;
   }
 
   GLenum dest_type_previous = dest_type;
   GLenum dest_internal_format = internal_format;
-  int dest_width = 0;
-  int dest_height = 0;
-  bool dest_level_defined =
-      dest_texture->GetLevelSize(GL_TEXTURE_2D, 0, &dest_width, &dest_height);
+  bool dest_level_defined = dest_texture->GetLevelSize(
+      GL_TEXTURE_2D, level, &dest_width, &dest_height);
 
   if (dest_level_defined) {
-    dest_texture->GetLevelType(GL_TEXTURE_2D, 0, &dest_type_previous,
+    dest_texture->GetLevelType(GL_TEXTURE_2D, level, &dest_type_previous,
                                &dest_internal_format);
   }
 
   // Resize the destination texture to the dimensions of the source texture.
   if (!dest_level_defined || dest_width != source_width ||
       dest_height != source_height ||
       dest_internal_format != internal_format ||
       dest_type_previous != dest_type) {
     // Ensure that the glTexImage2D succeeds.
     LOCAL_COPY_REAL_GL_ERRORS_TO_WRAPPER("glCopyTextureCHROMIUM");
     glBindTexture(GL_TEXTURE_2D, dest_texture->service_id());
-    glTexImage2D(GL_TEXTURE_2D, 0, internal_format, source_width, source_height,
-                 0, internal_format, dest_type, NULL);
+    glTexImage2D(
+        GL_TEXTURE_2D, level, internal_format, source_width, source_height,
+        0, internal_format, dest_type, NULL);
     GLenum error = LOCAL_PEEK_GL_ERROR("glCopyTextureCHROMIUM");
     if (error != GL_NO_ERROR) {
       RestoreCurrentTextureBindings(&state_, GL_TEXTURE_2D);
       return;
     }
 
     texture_manager()->SetLevelInfo(
-        dest_texture_ref, GL_TEXTURE_2D, 0, internal_format, source_width,
+        dest_texture_ref, GL_TEXTURE_2D, level, internal_format, source_width,
         source_height, 1, 0, internal_format, dest_type, true);
   } else {
-    texture_manager()->SetLevelCleared(dest_texture_ref, GL_TEXTURE_2D, 0,
-                                       true);
+    texture_manager()->SetLevelCleared(
+        dest_texture_ref, GL_TEXTURE_2D, level, true);
   }
 
   ScopedModifyPixels modify(dest_texture_ref);
 
   // Try using GLImage::CopyTexImage when possible.
   bool unpack_premultiply_alpha_change =
       unpack_premultiply_alpha_ ^ unpack_unpremultiply_alpha_;
-  if (image && !unpack_flip_y_ && !unpack_premultiply_alpha_change) {
+  if (image && !unpack_flip_y_ && !unpack_premultiply_alpha_change && !level) {
     glBindTexture(GL_TEXTURE_2D, dest_texture->service_id());
     if (image->CopyTexImage(GL_TEXTURE_2D))
       return;
   }
 
   DoWillUseTexImageIfNeeded(source_texture, source_texture->target());
 
   // GL_TEXTURE_EXTERNAL_OES texture requires apply a transform matrix
   // before presenting.
   if (source_texture->target() == GL_TEXTURE_EXTERNAL_OES) {
     // TODO(hkuang): get the StreamTexture transform matrix in GPU process
-    // instead of using kIdentityMatrix crbug.com/226218.
+    // instead of using default matrix crbug.com/226218.
+    const static GLfloat default_matrix[16] = {1.0f, 0.0f, 0.0f, 0.0f,
+                                               0.0f, 1.0f, 0.0f, 0.0f,
+                                               0.0f, 0.0f, 1.0f, 0.0f,
+                                               0.0f, 0.0f, 0.0f, 1.0f};
     copy_texture_CHROMIUM_->DoCopyTextureWithTransform(
-        this, source_texture->target(), source_texture->service_id(),
-        dest_texture->service_id(), source_width, source_height, unpack_flip_y_,
-        unpack_premultiply_alpha_, unpack_unpremultiply_alpha_,
-        kIdentityMatrix);
+        this,
+        source_texture->target(),
+        source_texture->service_id(),
+        dest_texture->service_id(),
+        level,
+        source_width,
+        source_height,
+        unpack_flip_y_,
+        unpack_premultiply_alpha_,
+        unpack_unpremultiply_alpha_,
+        default_matrix);
   } else {
-    copy_texture_CHROMIUM_->DoCopyTexture(
-        this, source_texture->target(), source_texture->service_id(),
-        source_internal_format, dest_texture->service_id(), internal_format,
-        source_width, source_height, unpack_flip_y_, unpack_premultiply_alpha_,
-        unpack_unpremultiply_alpha_);
+    copy_texture_CHROMIUM_->DoCopyTexture(this,
+                                          source_texture->target(),
+                                          source_texture->service_id(),
+                                          source_internal_format,
+                                          dest_texture->service_id(),
+                                          level,
+                                          internal_format,
+                                          source_width,
+                                          source_height,
+                                          unpack_flip_y_,
+                                          unpack_premultiply_alpha_,
+                                          unpack_unpremultiply_alpha_);
   }
 
   DoDidUseTexImageIfNeeded(source_texture, source_texture->target());
-}
-
-void GLES2DecoderImpl::DoCopySubTextureCHROMIUM(GLenum target,
-                                                GLuint source_id,
-                                                GLuint dest_id,
-                                                GLint xoffset,
-                                                GLint yoffset) {
-  TRACE_EVENT0("gpu", "GLES2DecoderImpl::DoCopySubTextureCHROMIUM");
-
-  TextureRef* source_texture_ref = GetTexture(source_id);
-  TextureRef* dest_texture_ref = GetTexture(dest_id);
-  Texture* source_texture = source_texture_ref->texture();
-  Texture* dest_texture = dest_texture_ref->texture();
-  int source_width = 0;
-  int source_height = 0;
-  gfx::GLImage* image =
-      source_texture->GetLevelImage(source_texture->target(), 0);
-  if (image) {
-    gfx::Size size = image->GetSize();
-    source_width = size.width();
-    source_height = size.height();
-    if (source_width <= 0 || source_height <= 0) {
-      LOCAL_SET_GL_ERROR(GL_INVALID_VALUE, "glCopySubTextureCHROMIUM",
-                         "invalid image size");
-      return;
-    }
-  } else {
-    if (!source_texture->GetLevelSize(source_texture->target(), 0,
-                                      &source_width, &source_height)) {
-      LOCAL_SET_GL_ERROR(GL_INVALID_VALUE, "glCopySubTextureCHROMIUM",
-                         "source texture has no level 0");
-      return;
-    }
-
-    // Check that this type of texture is allowed.
-    if (!texture_manager()->ValidForTarget(source_texture->target(), 0,
-                                           source_width, source_height, 1)) {
-      LOCAL_SET_GL_ERROR(GL_INVALID_VALUE, "glCopySubTextureCHROMIUM",
-                         "source texture bad dimensions");
-      return;
-    }
-  }
-
-  GLenum source_type = 0;
-  GLenum source_internal_format = 0;
-  source_texture->GetLevelType(source_texture->target(), 0, &source_type,
-                               &source_internal_format);
-  GLenum dest_type = 0;
-  GLenum dest_internal_format = 0;
-  bool dest_level_defined = dest_texture->GetLevelType(
-      dest_texture->target(), 0, &dest_type, &dest_internal_format);
-  if (!dest_level_defined) {
-    LOCAL_SET_GL_ERROR(GL_INVALID_OPERATION, "glCopySubTextureCHROMIUM",
-                       "destination texture is not defined");
-    return;
-  }
-  if (!dest_texture->ValidForTexture(dest_texture->target(), 0, xoffset,
-                                     yoffset, source_width, source_height,
-                                     dest_type)) {
-    LOCAL_SET_GL_ERROR(GL_INVALID_VALUE, "glCopySubTextureCHROMIUM",
-                       "destination texture bad dimensions.");
-    return;
-  }
-
-  if (!ValidateCopyTextureCHROMIUM("glCopySubTextureCHROMIUM", target,
-                                   source_texture_ref, dest_texture_ref,
-                                   dest_internal_format)) {
-    return;
-  }
-
-  // Clear the source texture if necessary.
-  if (!texture_manager()->ClearTextureLevel(this, source_texture_ref,
-                                            source_texture->target(), 0)) {
-    LOCAL_SET_GL_ERROR(GL_OUT_OF_MEMORY, "glCopySubTextureCHROMIUM",
-                       "source texture dimensions too big");
-    return;
-  }
-
-  // Defer initializing the CopyTextureCHROMIUMResourceManager until it is
-  // needed because it takes 10s of milliseconds to initialize.
-  if (!copy_texture_CHROMIUM_.get()) {
-    LOCAL_COPY_REAL_GL_ERRORS_TO_WRAPPER("glCopySubTextureCHROMIUM");
-    copy_texture_CHROMIUM_.reset(new CopyTextureCHROMIUMResourceManager());
-    copy_texture_CHROMIUM_->Initialize(this);
-    RestoreCurrentFramebufferBindings();
-    if (LOCAL_PEEK_GL_ERROR("glCopySubTextureCHROMIUM") != GL_NO_ERROR)
-      return;
-  }
-
-  int dest_width = 0;
-  int dest_height = 0;
-  bool ok =
-      dest_texture->GetLevelSize(GL_TEXTURE_2D, 0, &dest_width, &dest_height);
-  DCHECK(ok);
-  if (xoffset != 0 || yoffset != 0 || source_width != dest_width ||
-      source_height != dest_height) {
-    if (!texture_manager()->ClearTextureLevel(this, dest_texture_ref, target,
-                                              0)) {
-      LOCAL_SET_GL_ERROR(GL_OUT_OF_MEMORY, "glCopySubTextureCHROMIUM",
-                         "destination texture dimensions too big");
-      return;
-    }
-  } else {
-    texture_manager()->SetLevelCleared(dest_texture_ref, GL_TEXTURE_2D, 0,
-                                       true);
-  }
-
-  ScopedModifyPixels modify(dest_texture_ref);
-
-  DoWillUseTexImageIfNeeded(source_texture, source_texture->target());
-
-  // GL_TEXTURE_EXTERNAL_OES texture requires apply a transform matrix
-  // before presenting.
-  if (source_texture->target() == GL_TEXTURE_EXTERNAL_OES) {
-    // TODO(hkuang): get the StreamTexture transform matrix in GPU process
-    // instead of using kIdentityMatrix crbug.com/226218.
-    copy_texture_CHROMIUM_->DoCopySubTextureWithTransform(
-        this, source_texture->target(), source_texture->service_id(),
-        dest_texture->service_id(), xoffset, yoffset, dest_width, dest_height,
-        source_width, source_height, unpack_flip_y_, unpack_premultiply_alpha_,
-        unpack_unpremultiply_alpha_, kIdentityMatrix);
-  } else {
-    copy_texture_CHROMIUM_->DoCopySubTexture(
-        this, source_texture->target(), source_texture->service_id(),
-        source_internal_format, dest_texture->service_id(),
-        dest_internal_format, xoffset, yoffset, dest_width, dest_height,
-        source_width, source_height, unpack_flip_y_, unpack_premultiply_alpha_,
-        unpack_unpremultiply_alpha_);
-  }
-
-  DoDidUseTexImageIfNeeded(source_texture, source_texture->target());
 }
 
 static GLenum ExtractTypeFromStorageFormat(GLenum internalformat) {
   switch (internalformat) {
     case GL_RGB565:
       return GL_UNSIGNED_SHORT_5_6_5;
     case GL_RGBA4:
       return GL_UNSIGNED_SHORT_4_4_4_4;
     case GL_RGB5_A1:
       return GL_UNSIGNED_SHORT_5_5_5_1;
@@ skipping 581 matching lines @@
   DCHECK(matrix_mode == GL_PATH_PROJECTION_CHROMIUM ||
          matrix_mode == GL_PATH_MODELVIEW_CHROMIUM);
 
   if (!features().chromium_path_rendering) {
     LOCAL_SET_GL_ERROR(GL_INVALID_OPERATION,
                        "glMatrixLoadIdentityCHROMIUM",
                        "function not available");
     return;
   }
 
+  static GLfloat kIdentityMatrix[16] = {1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
+                                        0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
+                                        0.0f, 0.0f, 0.0f, 1.0f};
+
   GLfloat* target_matrix = matrix_mode == GL_PATH_PROJECTION_CHROMIUM
                                ? state_.projection_matrix
                                : state_.modelview_matrix;
   memcpy(target_matrix, kIdentityMatrix, sizeof(kIdentityMatrix));
   // The matrix_mode is either GL_PATH_MODELVIEW_NV or GL_PATH_PROJECTION_NV
   // since the values of the _NV and _CHROMIUM tokens match.
   glMatrixLoadIdentityEXT(matrix_mode);
 }
 
 bool GLES2DecoderImpl::ValidateAsyncTransfer(
@@ skipping 382 matching lines @@
   }
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu