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// 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/texture_copier.h"
#include "cc/test/fake_web_graphics_context_3d.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/khronos/GLES2/gl2.h"
using namespace WebKit;
using testing::InSequence;
using testing::Test;
using testing::_;
namespace cc {
namespace {
class MockContext : public FakeWebGraphicsContext3D {
public:
MOCK_METHOD2(bindFramebuffer, void(WGC3Denum, WebGLId));
MOCK_METHOD3(texParameteri, void(WGC3Denum target, WGC3Denum pname, WGC3Dint param));
MOCK_METHOD1(disable, void(WGC3Denum cap));
MOCK_METHOD1(enable, void(WGC3Denum cap));
MOCK_METHOD3(drawArrays, void(WGC3Denum mode, WGC3Dint first, WGC3Dsizei count));
};
TEST(TextureCopierTest, testDrawArraysCopy)
{
scoped_ptr<MockContext> mockContext(new MockContext);
{
InSequence sequence;
EXPECT_CALL(*mockContext, disable(GL_SCISSOR_TEST));
// Here we check just some essential properties of copyTexture() to avoid mirroring the full implementation.
EXPECT_CALL(*mockContext, bindFramebuffer(GL_FRAMEBUFFER, _));
// Make sure linear filtering is disabled during the copy.
EXPECT_CALL(*mockContext, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST));
EXPECT_CALL(*mockContext, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST));
EXPECT_CALL(*mockContext, disable(GL_BLEND));
EXPECT_CALL(*mockContext, drawArrays(_, _, _));
// Linear filtering, default framebuffer and scissor test should be restored.
EXPECT_CALL(*mockContext, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
EXPECT_CALL(*mockContext, texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
EXPECT_CALL(*mockContext, bindFramebuffer(GL_FRAMEBUFFER, 0));
EXPECT_CALL(*mockContext, enable(GL_SCISSOR_TEST));
}
int sourceTextureId = 1;
int destTextureId = 2;
gfx::Size size(256, 128);
scoped_ptr<AcceleratedTextureCopier> copier(AcceleratedTextureCopier::create(mockContext.get(), false));
TextureCopier::Parameters copy = { sourceTextureId, destTextureId, size };
copier->copyTexture(copy);
}
} // namespace
} // namespace cc
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