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// 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 <GLES2/gl2.h>
#include <GLES2/gl2chromium.h>
#include <GLES2/gl2ext.h>
#include <GLES2/gl2extchromium.h>
#include "base/bind.h"
#include "base/memory/ref_counted.h"
#include "base/process/process_handle.h"
#include "gpu/command_buffer/client/gles2_implementation.h"
#include "gpu/command_buffer/service/command_buffer_service.h"
#include "gpu/command_buffer/service/image_manager.h"
#include "gpu/command_buffer/tests/gl_manager.h"
#include "gpu/command_buffer/tests/gl_test_utils.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/gpu_memory_buffer.h"
#include "ui/gl/gl_image.h"
using testing::_;
using testing::IgnoreResult;
using testing::InvokeWithoutArgs;
using testing::Invoke;
using testing::Return;
using testing::SetArgPointee;
using testing::StrictMock;
namespace gpu {
namespace gles2 {
static const int kImageWidth = 32;
static const int kImageHeight = 32;
static const int kImageBytesPerPixel = 4;
class GpuMemoryBufferTest : public testing::Test {
protected:
void SetUp() override {
gl_.Initialize(GLManager::Options());
gl_.MakeCurrent();
glGenTextures(2, texture_ids_);
glBindTexture(GL_TEXTURE_2D, texture_ids_[1]);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glGenFramebuffers(1, &framebuffer_id_);
glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_id_);
glFramebufferTexture2D(GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D,
texture_ids_[1],
0);
}
void TearDown() override {
glDeleteTextures(2, texture_ids_);
glDeleteFramebuffers(1, &framebuffer_id_);
gl_.Destroy();
}
GLManager gl_;
GLuint texture_ids_[2];
GLuint framebuffer_id_;
};
// An end to end test that tests the whole GpuMemoryBuffer lifecycle.
TEST_F(GpuMemoryBufferTest, Lifecycle) {
uint8 pixels[1 * 4] = { 255u, 0u, 0u, 255u };
scoped_ptr<gfx::GpuMemoryBuffer> buffer(gl_.CreateGpuMemoryBuffer(
gfx::Size(kImageWidth, kImageHeight), gfx::GpuMemoryBuffer::RGBA_8888));
// Map buffer for writing.
void* data;
bool rv = buffer->Map(&data);
DCHECK(rv);
uint8* mapped_buffer = static_cast<uint8*>(data);
ASSERT_TRUE(mapped_buffer != NULL);
// Assign a value to each pixel.
int stride = kImageWidth * kImageBytesPerPixel;
for (int x = 0; x < kImageWidth; ++x) {
for (int y = 0; y < kImageHeight; ++y) {
mapped_buffer[y * stride + x * kImageBytesPerPixel + 0] = pixels[0];
mapped_buffer[y * stride + x * kImageBytesPerPixel + 1] = pixels[1];
mapped_buffer[y * stride + x * kImageBytesPerPixel + 2] = pixels[2];
mapped_buffer[y * stride + x * kImageBytesPerPixel + 3] = pixels[3];
}
}
// Unmap the buffer.
buffer->Unmap();
// Create the image. This should add the image ID to the ImageManager.
GLuint image_id = glCreateImageCHROMIUM(
buffer->AsClientBuffer(), kImageWidth, kImageHeight, GL_RGBA);
EXPECT_NE(0u, image_id);
EXPECT_TRUE(gl_.decoder()->GetImageManager()->LookupImage(image_id) != NULL);
// Bind the texture and the image.
glBindTexture(GL_TEXTURE_2D, texture_ids_[0]);
glBindTexImage2DCHROMIUM(GL_TEXTURE_2D, image_id);
// Copy texture so we can verify result using CheckPixels.
glCopyTextureCHROMIUM(GL_TEXTURE_2D,
texture_ids_[0],
texture_ids_[1],
GL_RGBA,
GL_UNSIGNED_BYTE);
EXPECT_TRUE(glGetError() == GL_NO_ERROR);
// Check if pixels match the values that were assigned to the mapped buffer.
GLTestHelper::CheckPixels(0, 0, kImageWidth, kImageHeight, 0, pixels);
EXPECT_TRUE(GL_NO_ERROR == glGetError());
// Release the image.
glReleaseTexImage2DCHROMIUM(GL_TEXTURE_2D, image_id);
// Destroy the image.
glDestroyImageCHROMIUM(image_id);
}
} // namespace gles2
} // namespace gpu
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