Identify evictable textures by GL texture parameter

cc/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/resource_provider.h"
 
 #include "base/logging.h"
 #include "cc/output_surface.h"
 #include "cc/scoped_ptr_deque.h"
 #include "cc/scoped_ptr_hash_map.h"
@@ skipping 567 matching lines @@
     gfx::Size size(1, 1);
     WGC3Denum format = GL_RGBA;
     int textureId = 1;
 
     // Check that the texture gets created with the right sampler settings.
     EXPECT_CALL(*context, bindTexture(GL_TEXTURE_2D, textureId));
     EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
     EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
     EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
     EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
+    EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_POOL_CHROMIUM, GL_TEXTURE_POOL_UNMANAGED_CHROMIUM));
     ResourceProvider::ResourceId id = resourceProvider->createResource(size, format, ResourceProvider::TextureUsageAny);
 
     // Creating a sampler with the default filter should not change any texture
     // parameters.
     {
         EXPECT_CALL(*context, bindTexture(GL_TEXTURE_2D, textureId));
         ResourceProvider::ScopedSamplerGL sampler(resourceProvider.get(), id, GL_TEXTURE_2D, GL_LINEAR);
     }
 
     // Using a different filter should be reflected in the texture parameters.
     {
         EXPECT_CALL(*context, bindTexture(GL_TEXTURE_2D, textureId));
         EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST));
         EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST));
         ResourceProvider::ScopedSamplerGL sampler(resourceProvider.get(), id, GL_TEXTURE_2D, GL_NEAREST);
     }
 
     // Test resetting to the default filter.
     {
         EXPECT_CALL(*context, bindTexture(GL_TEXTURE_2D, textureId));
         EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
         EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
         ResourceProvider::ScopedSamplerGL sampler(resourceProvider.get(), id, GL_TEXTURE_2D, GL_LINEAR);
     }
 
     Mock::VerifyAndClearExpectations(context);
 }
 
+TEST_P(ResourceProviderTest, ManagedResource)
+{
+    // Sampling is only supported for GL textures.
+    if (GetParam() != ResourceProvider::GLTexture)
+        return;
+
+    scoped_ptr<OutputSurface> outputSurface(FakeOutputSurface::Create3d(scoped_ptr<WebKit::WebGraphicsContext3D>(new TextureStateTrackingContext)));
+    TextureStateTrackingContext* context = static_cast<TextureStateTrackingContext*>(outputSurface->Context3D());
+    scoped_ptr<ResourceProvider> resourceProvider(ResourceProvider::create(outputSurface.get()));
+
+    gfx::Size size(1, 1);
+    WGC3Denum format = GL_RGBA;
+    int textureId = 1;
+
+    // Check that the texture gets created with the right sampler settings.
+    EXPECT_CALL(*context, bindTexture(GL_TEXTURE_2D, textureId));
+    EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
+    EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
+    EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
+    EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
+    EXPECT_CALL(*context, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_POOL_CHROMIUM, GL_TEXTURE_POOL_MANAGED_CHROMIUM));
+    ResourceProvider::ResourceId id = resourceProvider->createManagedResource(size, format, ResourceProvider::TextureUsageAny);
+
+    Mock::VerifyAndClearExpectations(context);
+}
+
 INSTANTIATE_TEST_CASE_P(ResourceProviderTests,
                         ResourceProviderTest,
                         ::testing::Values(ResourceProvider::GLTexture,
                                           ResourceProvider::Bitmap));
 
 }  // namespace
 }  // namespace cc