cc: Changes to use GL API for GpuMemoryBuffers

cc/resources/resource_provider_unittest.cc

 // Copyright 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 "cc/resources/resource_provider.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "cc/base/scoped_ptr_deque.h"
 #include "cc/base/scoped_ptr_hash_map.h"
 #include "cc/output/output_surface.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/test_web_graphics_context_3d.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/khronos/GLES2/gl2ext.h"
 #include "ui/gfx/rect.h"
 
 using testing::Mock;
 using testing::NiceMock;
 using testing::Return;
 using testing::StrictMock;
 using testing::_;
+using WebKit::WGC3Dboolean;

[reveman, 2013/05/17 01:48:08]

what is this for?

[kaanb, 2013/05/17 21:27:36]

Removed.

 using WebKit::WGC3Dbyte;
 using WebKit::WGC3Denum;
 using WebKit::WGC3Dint;
 using WebKit::WGC3Dsizei;
 using WebKit::WGC3Duint;
 using WebKit::WebGLId;
 
 namespace cc {
 namespace {
 
@@ skipping 1189 matching lines @@
   MOCK_METHOD9(asyncTexSubImage2DCHROMIUM,
                void(WGC3Denum target,
                     WGC3Dint level,
                     WGC3Dint xoffset,
                     WGC3Dint yoffset,
                     WGC3Dsizei width,
                     WGC3Dsizei height,
                     WGC3Denum format,
                     WGC3Denum type,
                     const void* pixels));
-  MOCK_METHOD1(waitAsyncTexImage2DCHROMIUM, void(WGC3Denum target));
+  MOCK_METHOD1(waitAsyncTexImage2DCHROMIUM, void(WGC3Denum));
+  MOCK_METHOD3(createImageCHROMIUM, WGC3Duint(WGC3Dsizei, WGC3Dsizei,
+                                              WGC3Denum));
+  MOCK_METHOD1(destroyImageCHROMIUM, void(WGC3Duint));
+  MOCK_METHOD2(mapImageCHROMIUM, void*(WGC3Duint, WGC3Denum));
+  MOCK_METHOD1(unmapImageCHROMIUM, void(WGC3Duint));
+  MOCK_METHOD2(bindTexImage2DCHROMIUM, void(WGC3Denum, WGC3Dint));
 };
 
 TEST_P(ResourceProviderTest, TextureAllocation) {
   // Only for GL textures.
   if (GetParam() != ResourceProvider::GLTexture)
     return;
   scoped_ptr<WebKit::WebGraphicsContext3D> mock_context(
       static_cast<WebKit::WebGraphicsContext3D*>(
           new NiceMock<AllocationTrackingContext3D>));
   scoped_ptr<OutputSurface> output_surface(
@@ skipping 161 matching lines @@
   context->loseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
                                GL_INNOCENT_CONTEXT_RESET_ARB);
   resource_provider->AcquirePixelBuffer(id);
   uint8_t* buffer = resource_provider->MapPixelBuffer(id);
   EXPECT_TRUE(buffer == NULL);
   resource_provider->UnmapPixelBuffer(id);
   resource_provider->ReleasePixelBuffer(id);
   Mock::VerifyAndClearExpectations(context);
 }
 
+TEST_P(ResourceProviderTest, GpuMemoryBuffers) {
+  // Only for GL textures.
+  if (GetParam() != ResourceProvider::GLTexture)
+    return;
+  scoped_ptr<WebKit::WebGraphicsContext3D> mock_context(
+      static_cast<WebKit::WebGraphicsContext3D*>(
+          new StrictMock<AllocationTrackingContext3D>));
+  scoped_ptr<OutputSurface> output_surface(
+      FakeOutputSurface::Create3d(mock_context.Pass()));
+
+  const int kWidth = 2;
+  const int kHeight = 2;
+  gfx::Size size(kWidth, kHeight);
+  WGC3Denum format = GL_RGBA;
+  ResourceProvider::ResourceId id = 0;
+  const unsigned kTextureId = 123u;
+  const unsigned kImageId = 234u;
+
+  AllocationTrackingContext3D* context =
+      static_cast<AllocationTrackingContext3D*>(output_surface->context3d());
+  scoped_ptr<ResourceProvider> resource_provider(
+      ResourceProvider::Create(output_surface.get(), 0));
+  resource_provider->SetUseGpuMemoryBuffers(true);
+
+  EXPECT_CALL(*context, createTexture()).WillOnce(Return(kTextureId))
+      .RetiresOnSaturation();
+  // First bindTexture call is within CreateResource, second is within
+  // BeginSetPixels.
+  EXPECT_CALL(*context, bindTexture(GL_TEXTURE_2D, kTextureId)).Times(1)
+      .RetiresOnSaturation();
+  id = resource_provider->CreateResource(
+      size, format, ResourceProvider::TextureUsageAny);
+  EXPECT_CALL(*context, createImageCHROMIUM(kWidth, kHeight, GL_RGBA8_OES))
+      .WillOnce(Return(kImageId));
+  resource_provider->AcquirePixelBuffer(id);
+
+  EXPECT_CALL(*context, bindTexture(GL_TEXTURE_2D, kTextureId)).Times(1)
+      .RetiresOnSaturation();
+  EXPECT_CALL(*context, bindTexImage2DCHROMIUM(GL_TEXTURE_2D, kImageId))
+      .Times(1)
+      .RetiresOnSaturation();
+  resource_provider->BeginSetPixels(id);
+
+  void* dummy_mapped_buffer_address = NULL;
+  EXPECT_CALL(*context, mapImageCHROMIUM(kImageId, GL_WRITE_ONLY))
+      .WillOnce(Return(dummy_mapped_buffer_address))
+      .RetiresOnSaturation();
+  resource_provider->MapPixelBuffer(id);
+
+  EXPECT_CALL(*context, unmapImageCHROMIUM(kImageId))
+      .Times(1)
+      .RetiresOnSaturation();
+  resource_provider->UnmapPixelBuffer(id);
+
+  EXPECT_CALL(*context, destroyImageCHROMIUM(kImageId))
+      .Times(1)
+      .RetiresOnSaturation();
+  resource_provider->ReleasePixelBuffer(id);
+
+  // Texture will be deleted when ResourceProvider destructor is
+  // called when it goes out of scope when this method returns.
+  EXPECT_CALL(*context, deleteTexture(kTextureId))
+      .Times(1)
+      .RetiresOnSaturation();
+}
+
 INSTANTIATE_TEST_CASE_P(
     ResourceProviderTests,
     ResourceProviderTest,
     ::testing::Values(ResourceProvider::GLTexture, ResourceProvider::Bitmap));
 
 }  // namespace
 }  // namespace cc