Re-land: ui: Move GLImage::BindTexImage fallback from GLImage implementations to GLES2CmdDecoder.

gpu/command_buffer/service/gles2_cmd_decoder_unittest_textures.cc

 // Copyright 2014 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 "base/command_line.h"
 #include "base/strings/string_number_conversions.h"
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
@@ skipping 2609 matching lines @@
   GLenum type;
   GLenum internal_format;
 
   EXPECT_TRUE(
       texture->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height, nullptr));
   EXPECT_EQ(3, width);
   EXPECT_EQ(1, height);
   EXPECT_TRUE(texture->GetLevelType(GL_TEXTURE_2D, 0, &type, &internal_format));
   EXPECT_EQ(static_cast<GLenum>(GL_RGBA), internal_format);
   EXPECT_EQ(static_cast<GLenum>(GL_UNSIGNED_BYTE), type);
-  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == NULL);
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == nullptr);
 
   // Bind image to texture.
   // ScopedGLErrorSuppressor calls GetError on its constructor and destructor.
   DoBindTexImage2DCHROMIUM(GL_TEXTURE_2D, 1);
   EXPECT_TRUE(
       texture->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height, nullptr));
   // Image should now be set.
-  EXPECT_FALSE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == NULL);
+  EXPECT_FALSE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == nullptr);
 
   // Define new texture image.
   DoTexImage2D(
       GL_TEXTURE_2D, 0, GL_RGBA, 3, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0, 0);
   EXPECT_TRUE(
       texture->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height, nullptr));
   // Image should no longer be set.
-  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == NULL);
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == nullptr);
 }
 
 TEST_P(GLES2DecoderTest, BindTexImage2DCHROMIUMCubeMapNotAllowed) {
   scoped_refptr<gfx::GLImage> image(new gfx::GLImageStub);
   GetImageManager()->AddImage(image.get(), 1);
   DoBindTexture(GL_TEXTURE_CUBE_MAP, client_texture_id_, kServiceTextureId);
 
   BindTexImage2DCHROMIUM bind_tex_image_2d_cmd;
   bind_tex_image_2d_cmd.Init(GL_TEXTURE_CUBE_MAP, 1);
   EXPECT_EQ(error::kNoError, ExecuteCmd(bind_tex_image_2d_cmd));
   EXPECT_EQ(GL_INVALID_ENUM, GetGLError());
 }
 
 TEST_P(GLES2DecoderTest, OrphanGLImageWithTexImage2D) {
   scoped_refptr<gfx::GLImage> image(new gfx::GLImageStub);
   GetImageManager()->AddImage(image.get(), 1);
   DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kServiceTextureId);
 
   DoBindTexImage2DCHROMIUM(GL_TEXTURE_2D, 1);
 
   TextureRef* texture_ref =
       group().texture_manager()->GetTexture(client_texture_id_);
   ASSERT_TRUE(texture_ref != NULL);
   Texture* texture = texture_ref->texture();
 
-  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == image.get());
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == image.get());
   DoTexImage2D(
       GL_TEXTURE_2D, 0, GL_RGBA, 3, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0, 0);
-  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == NULL);
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == nullptr);
 }
 
 TEST_P(GLES2DecoderTest, GLImageAttachedAfterSubTexImage2D) {
   // Specifically tests that TexSubImage2D is not optimized to TexImage2D
   // in the presence of image attachments.
   ASSERT_FALSE(
       feature_info()->workarounds().texsubimage_faster_than_teximage);
 
   scoped_refptr<gfx::GLImage> image(new gfx::GLImageStub);
   GetImageManager()->AddImage(image.get(), 1);
@@ skipping 17 matching lines @@
                pixels_shm_id, pixels_shm_offset);
 
   // Bind texture to GLImage.
   DoBindTexImage2DCHROMIUM(GL_TEXTURE_2D, 1);
 
   // Check binding.
   TextureRef* texture_ref =
       group().texture_manager()->GetTexture(client_texture_id_);
   ASSERT_TRUE(texture_ref != NULL);
   Texture* texture = texture_ref->texture();
-  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == image.get());
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == image.get());
 
   // TexSubImage2D should not unbind GLImage.
   EXPECT_CALL(*gl_, TexSubImage2D(target, level, xoffset, yoffset, width,
                                   height, format, type, _))
       .Times(1)
       .RetiresOnSaturation();
   cmds::TexSubImage2D tex_sub_image_2d_cmd;
   tex_sub_image_2d_cmd.Init(target, level, xoffset, yoffset, width, height,
                             format, type, pixels_shm_id, pixels_shm_offset,
                             internal);
   EXPECT_EQ(error::kNoError, ExecuteCmd(tex_sub_image_2d_cmd));
-  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == image.get());
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == image.get());
 }
 
 TEST_P(GLES2DecoderTest, GLImageAttachedAfterClearLevel) {
   scoped_refptr<gfx::GLImage> image(new gfx::GLImageStub);
   GetImageManager()->AddImage(image.get(), 1);
   DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kServiceTextureId);
 
   GLenum target = GL_TEXTURE_2D;
   GLint level = 0;
   GLint xoffset = 0;
@@ skipping 11 matching lines @@
                pixels_shm_id, pixels_shm_offset);
 
   // Bind texture to GLImage.
   DoBindTexImage2DCHROMIUM(GL_TEXTURE_2D, 1);
 
   // Check binding.
   TextureRef* texture_ref =
       group().texture_manager()->GetTexture(client_texture_id_);
   ASSERT_TRUE(texture_ref != NULL);
   Texture* texture = texture_ref->texture();
-  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == image.get());
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == image.get());
 
   // ClearLevel should use glTexSubImage2D to avoid unbinding GLImage.
   EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, kServiceTextureId))
       .Times(2)
       .RetiresOnSaturation();
   EXPECT_CALL(*gl_, TexSubImage2D(target, level, xoffset, yoffset, width,
                                   height, format, type, _))
       .Times(1)
       .RetiresOnSaturation();
   GetDecoder()->ClearLevel(texture, target, level, format, type, 0, 0, width,
                            height);
-  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == image.get());
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == image.get());
 }
 
 TEST_P(GLES2DecoderTest, ReleaseTexImage2DCHROMIUM) {
   DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kServiceTextureId);
   DoTexImage2D(
       GL_TEXTURE_2D, 0, GL_RGBA, 3, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0, 0);
   TextureRef* texture_ref =
       group().texture_manager()->GetTexture(client_texture_id_);
   ASSERT_TRUE(texture_ref != NULL);
   Texture* texture = texture_ref->texture();
   EXPECT_EQ(kServiceTextureId, texture->service_id());
 
   scoped_refptr<gfx::GLImage> image(new gfx::GLImageStub);
   GetImageManager()->AddImage(image.get(), 1);
   EXPECT_FALSE(GetImageManager()->LookupImage(1) == NULL);
 
   GLsizei width;
   GLsizei height;
   GLenum type;
   GLenum internal_format;
 
   EXPECT_TRUE(
       texture->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height, nullptr));
   EXPECT_EQ(3, width);
   EXPECT_EQ(1, height);
   EXPECT_TRUE(texture->GetLevelType(GL_TEXTURE_2D, 0, &type, &internal_format));
   EXPECT_EQ(static_cast<GLenum>(GL_RGBA), internal_format);
   EXPECT_EQ(static_cast<GLenum>(GL_UNSIGNED_BYTE), type);
-  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == NULL);
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == nullptr);
 
   // Bind image to texture.
   // ScopedGLErrorSuppressor calls GetError on its constructor and destructor.
   DoBindTexImage2DCHROMIUM(GL_TEXTURE_2D, 1);
   EXPECT_TRUE(
       texture->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height, nullptr));
   // Image should now be set.
-  EXPECT_FALSE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == NULL);
+  EXPECT_FALSE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == nullptr);
 
   // Release image from texture.
   // ScopedGLErrorSuppressor calls GetError on its constructor and destructor.
   EXPECT_CALL(*gl_, GetError())
       .WillOnce(Return(GL_NO_ERROR))
       .WillOnce(Return(GL_NO_ERROR))
       .RetiresOnSaturation();
   ReleaseTexImage2DCHROMIUM release_tex_image_2d_cmd;
   release_tex_image_2d_cmd.Init(GL_TEXTURE_2D, 1);
   EXPECT_EQ(error::kNoError, ExecuteCmd(release_tex_image_2d_cmd));
   EXPECT_TRUE(
       texture->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height, nullptr));
   // Image should no longer be set.
-  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0) == NULL);
+  EXPECT_TRUE(texture->GetLevelImage(GL_TEXTURE_2D, 0, nullptr) == nullptr);
 }
 
 class MockGLImage : public gfx::GLImage {
  public:
   MockGLImage() {}
 
   // Overridden from gfx::GLImage:
   MOCK_METHOD0(GetSize, gfx::Size());
   MOCK_METHOD0(GetInternalFormat, unsigned());
   MOCK_METHOD1(Destroy, void(bool));
   MOCK_METHOD1(BindTexImage, bool(unsigned));
   MOCK_METHOD1(ReleaseTexImage, void(unsigned));
+  MOCK_METHOD1(CopyTexImage, bool(unsigned));
   MOCK_METHOD3(CopyTexSubImage,
                bool(unsigned, const gfx::Point&, const gfx::Rect&));
-  MOCK_METHOD0(WillUseTexImage, void());
-  MOCK_METHOD0(DidUseTexImage, void());
-  MOCK_METHOD0(WillModifyTexImage, void());
-  MOCK_METHOD0(DidModifyTexImage, void());
   MOCK_METHOD5(ScheduleOverlayPlane, bool(gfx::AcceleratedWidget,
                                           int,
                                           gfx::OverlayTransform,
                                           const gfx::Rect&,
                                           const gfx::RectF&));
   MOCK_METHOD3(OnMemoryDump,
                void(base::trace_event::ProcessMemoryDump*,
                     uint64_t,
                     const std::string&));
 
  protected:
   virtual ~MockGLImage() {}
 };
 
-TEST_P(GLES2DecoderWithShaderTest, UseTexImage) {
+TEST_P(GLES2DecoderWithShaderTest, CopyTexImage) {
   DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kServiceTextureId);
   DoTexImage2D(GL_TEXTURE_2D,
                0,
                GL_RGBA,
                1,
                1,
                0,
                GL_RGBA,
                GL_UNSIGNED_BYTE,
                kSharedMemoryId,
                kSharedMemoryOffset);
 
   TextureRef* texture_ref =
       group().texture_manager()->GetTexture(client_texture_id_);
   ASSERT_TRUE(texture_ref != NULL);
   Texture* texture = texture_ref->texture();
   EXPECT_EQ(kServiceTextureId, texture->service_id());
 
   const int32 kImageId = 1;
   scoped_refptr<MockGLImage> image(new MockGLImage);
   GetImageManager()->AddImage(image.get(), kImageId);
 
   // Bind image to texture.
   EXPECT_CALL(*image.get(), BindTexImage(GL_TEXTURE_2D))
       .Times(1)
-      .WillOnce(Return(true))
+      .WillOnce(Return(false))
       .RetiresOnSaturation();
   EXPECT_CALL(*image.get(), GetSize())
       .Times(1)
       .WillOnce(Return(gfx::Size(1, 1)))
       .RetiresOnSaturation();
+  EXPECT_CALL(*image.get(), GetInternalFormat())
+      .Times(1)
+      .WillOnce(Return(GL_RGBA))
+      .RetiresOnSaturation();
   // ScopedGLErrorSuppressor calls GetError on its constructor and destructor.
   DoBindTexImage2DCHROMIUM(GL_TEXTURE_2D, kImageId);
 
   AddExpectationsForSimulatedAttrib0(kNumVertices, 0);
   SetupExpectationsForApplyingDefaultDirtyState();
 
   // ScopedGLErrorSuppressor calls GetError on its constructor and destructor.
   EXPECT_CALL(*gl_, GetError())
       .WillOnce(Return(GL_NO_ERROR))
       .WillOnce(Return(GL_NO_ERROR))
-      .WillOnce(Return(GL_NO_ERROR))
-      .WillOnce(Return(GL_NO_ERROR))
       .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, ActiveTexture(GL_TEXTURE0)).Times(3).RetiresOnSaturation();
-  EXPECT_CALL(*image.get(), WillUseTexImage()).Times(1).RetiresOnSaturation();
-  EXPECT_CALL(*image.get(), DidUseTexImage()).Times(1).RetiresOnSaturation();
+  EXPECT_CALL(*gl_, ActiveTexture(GL_TEXTURE0)).Times(2).RetiresOnSaturation();
+  EXPECT_CALL(*image.get(), CopyTexImage(GL_TEXTURE_2D))
+      .Times(1)
+      .WillOnce(Return(true))
+      .RetiresOnSaturation();
   EXPECT_CALL(*gl_, DrawArrays(GL_TRIANGLES, 0, kNumVertices))
       .Times(1)
       .RetiresOnSaturation();
   DrawArrays cmd;
   cmd.Init(GL_TRIANGLES, 0, kNumVertices);
   EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
   EXPECT_EQ(GL_NO_ERROR, GetGLError());
 
+  DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kServiceTextureId);
+  // Re-bind image to texture.
+  ReleaseTexImage2DCHROMIUM release_tex_image_2d_cmd;
+  release_tex_image_2d_cmd.Init(GL_TEXTURE_2D, kImageId);
+  EXPECT_EQ(error::kNoError, ExecuteCmd(release_tex_image_2d_cmd));
+  EXPECT_CALL(*image.get(), BindTexImage(GL_TEXTURE_2D))
+      .Times(1)
+      .WillOnce(Return(false))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*image.get(), GetSize())
+      .Times(1)
+      .WillOnce(Return(gfx::Size(1, 1)))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*image.get(), GetInternalFormat())
+      .Times(1)
+      .WillOnce(Return(GL_RGBA))
+      .RetiresOnSaturation();
+  DoBindTexImage2DCHROMIUM(GL_TEXTURE_2D, kImageId);
+
   DoBindFramebuffer(
       GL_FRAMEBUFFER, client_framebuffer_id_, kServiceFramebufferId);
   // ScopedGLErrorSuppressor calls GetError on its constructor and destructor.
   EXPECT_CALL(*gl_, GetError())
       .WillOnce(Return(GL_NO_ERROR))
       .WillOnce(Return(GL_NO_ERROR))
       .RetiresOnSaturation();
   EXPECT_CALL(*gl_, ActiveTexture(GL_TEXTURE0)).Times(1).RetiresOnSaturation();
   EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, kServiceTextureId))
       .Times(2)
       .RetiresOnSaturation();
-  // Image will be 'in use' as long as bound to a framebuffer.
-  EXPECT_CALL(*image.get(), WillUseTexImage()).Times(1).RetiresOnSaturation();
+  EXPECT_CALL(*image.get(), CopyTexImage(GL_TEXTURE_2D))
+      .Times(1)
+      .WillOnce(Return(true))
+      .RetiresOnSaturation();
   EXPECT_CALL(*gl_,
               FramebufferTexture2DEXT(GL_FRAMEBUFFER,
                                       GL_COLOR_ATTACHMENT0,
                                       GL_TEXTURE_2D,
                                       kServiceTextureId,
                                       0))
       .Times(1)
       .RetiresOnSaturation();
   EXPECT_CALL(*gl_, GetError())
       .WillOnce(Return(GL_NO_ERROR))
       .WillOnce(Return(GL_NO_ERROR))
       .RetiresOnSaturation();
   FramebufferTexture2D fbtex_cmd;
   fbtex_cmd.Init(GL_FRAMEBUFFER,
                  GL_COLOR_ATTACHMENT0,
                  GL_TEXTURE_2D,
                  client_texture_id_);
   EXPECT_EQ(error::kNoError, ExecuteCmd(fbtex_cmd));
   EXPECT_EQ(GL_NO_ERROR, GetGLError());
 
-  // ScopedGLErrorSuppressor calls GetError on its constructor and destructor.
-  EXPECT_CALL(*gl_, GetError())
-      .WillOnce(Return(GL_NO_ERROR))
-      .WillOnce(Return(GL_NO_ERROR))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_,
-              FramebufferRenderbufferEXT(GL_FRAMEBUFFER,
-                                         GL_COLOR_ATTACHMENT0,
-                                         GL_RENDERBUFFER,
-                                         kServiceRenderbufferId))
-      .Times(1)
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, ActiveTexture(GL_TEXTURE0)).Times(1).RetiresOnSaturation();
-  EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, kServiceTextureId))
-      .Times(2)
-      .RetiresOnSaturation();
-  // Image should no longer be 'in use' after being unbound from framebuffer.
-  EXPECT_CALL(*image.get(), DidUseTexImage()).Times(1).RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetError())
-      .WillOnce(Return(GL_NO_ERROR))
-      .WillOnce(Return(GL_NO_ERROR))
-      .RetiresOnSaturation();
-  FramebufferRenderbuffer fbrb_cmd;
-  fbrb_cmd.Init(GL_FRAMEBUFFER,
-                GL_COLOR_ATTACHMENT0,
-                GL_RENDERBUFFER,
-                client_renderbuffer_id_);
-  EXPECT_EQ(error::kNoError, ExecuteCmd(fbrb_cmd));
+  EXPECT_CALL(*image.get(), Destroy(true)).Times(1).RetiresOnSaturation();
+  image = nullptr;
 }
 
 TEST_P(GLES2DecoderManualInitTest, DrawWithGLImageExternal) {
   InitState init;
   init.extensions = "GL_OES_EGL_image_external";
   init.gl_version = "opengl es 2.0";
   init.has_alpha = true;
   init.has_depth = true;
   init.request_alpha = true;
   init.request_depth = true;
   init.bind_generates_resource = true;
   InitDecoder(init);
 
   TextureRef* texture_ref = GetTexture(client_texture_id_);
   scoped_refptr<MockGLImage> image(new MockGLImage);
   group().texture_manager()->SetTarget(texture_ref, GL_TEXTURE_EXTERNAL_OES);
   group().texture_manager()->SetLevelInfo(texture_ref, GL_TEXTURE_EXTERNAL_OES,
                                           0, GL_RGBA, 0, 0, 1, 0, GL_RGBA,
                                           GL_UNSIGNED_BYTE, gfx::Rect());
-  group().texture_manager()->SetLevelImage(
-      texture_ref, GL_TEXTURE_EXTERNAL_OES, 0, image.get());
+  group().texture_manager()->SetLevelImage(texture_ref, GL_TEXTURE_EXTERNAL_OES,
+                                           0, image.get(), Texture::BOUND);
 
   DoBindTexture(GL_TEXTURE_EXTERNAL_OES, client_texture_id_, kServiceTextureId);
   EXPECT_EQ(GL_NO_ERROR, GetGLError());
 
   SetupSamplerExternalProgram();
   SetupIndexBuffer();
   AddExpectationsForSimulatedAttrib0(kMaxValidIndex + 1, 0);
   SetupExpectationsForApplyingDefaultDirtyState();
   EXPECT_TRUE(group().texture_manager()->CanRender(texture_ref));
 
   InSequence s;
-  EXPECT_CALL(*gl_, GetError())
-      .WillOnce(Return(GL_NO_ERROR))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, ActiveTexture(GL_TEXTURE0)).Times(1).RetiresOnSaturation();
-  EXPECT_CALL(*image.get(), WillUseTexImage()).Times(1).RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetError())
-      .WillOnce(Return(GL_NO_ERROR))
-      .RetiresOnSaturation();
   EXPECT_CALL(*gl_, DrawElements(_, _, _, _)).Times(1);
-  EXPECT_CALL(*gl_, GetError())
-      .WillOnce(Return(GL_NO_ERROR))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, ActiveTexture(GL_TEXTURE0)).Times(1).RetiresOnSaturation();
-  EXPECT_CALL(*image.get(), DidUseTexImage()).Times(1).RetiresOnSaturation();
-  EXPECT_CALL(*gl_, GetError())
-      .WillOnce(Return(GL_NO_ERROR))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, ActiveTexture(GL_TEXTURE0)).Times(1).RetiresOnSaturation();
   DrawElements cmd;
   cmd.Init(GL_TRIANGLES,
            kValidIndexRangeCount,
            GL_UNSIGNED_SHORT,
            kValidIndexRangeStart * 2);
   EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
   EXPECT_EQ(GL_NO_ERROR, GetGLError());
 }
 
 TEST_P(GLES2DecoderManualInitTest, TexImage2DFloatOnGLES2) {
@@ skipping 354 matching lines @@
 // TODO(gman): CompressedTexSubImage2DImmediate
 
 // TODO(gman): TexImage2D
 
 // TODO(gman): TexImage2DImmediate
 
 // TODO(gman): TexSubImage2DImmediate
 
 }  // namespace gles2
 }  // namespace gpu