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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;
class GpuMemoryBufferTest
: public testing::TestWithParam<gfx::GpuMemoryBuffer::Format> {
protected:
void SetUp() override {
GLManager::Options options;
options.size = gfx::Size(kImageWidth, kImageHeight);
gl_.Initialize(options);
gl_.MakeCurrent();
}
void TearDown() override {
gl_.Destroy();
}
GLManager gl_;
};
namespace {
#define SHADER(Src) #Src
// clang-format off
const char kVertexShader[] =
SHADER(
attribute vec4 a_position;
varying vec2 v_texCoord;
void main() {
gl_Position = a_position;
v_texCoord = vec2((a_position.x + 1.0) * 0.5, (a_position.y + 1.0) * 0.5);
}
);
const char* kFragmentShader =
SHADER(
precision mediump float;
uniform sampler2D a_texture;
varying vec2 v_texCoord;
void main() {
gl_FragColor = texture2D(a_texture, v_texCoord);
}
);
// clang-format on
std::vector<uint8> GetTexturePixel(const gfx::GpuMemoryBuffer::Format format) {
std::vector<uint8> pixel;
switch (format) {
case gfx::GpuMemoryBuffer::RGBA_8888:
pixel.push_back(255u);
pixel.push_back(0u);
pixel.push_back(0u);
pixel.push_back(255u);
return pixel;
case gfx::GpuMemoryBuffer::BGRA_8888:
pixel.push_back(0u);
pixel.push_back(0u);
pixel.push_back(255u);
pixel.push_back(255u);
return pixel;
case gfx::GpuMemoryBuffer::ATC:
case gfx::GpuMemoryBuffer::ATCIA:
case gfx::GpuMemoryBuffer::DXT1:
case gfx::GpuMemoryBuffer::DXT5:
case gfx::GpuMemoryBuffer::ETC1:
case gfx::GpuMemoryBuffer::RGBX_8888:
case gfx::GpuMemoryBuffer::YUV_420:
NOTREACHED();
return std::vector<uint8>();
}
NOTREACHED();
return std::vector<uint8>();
}
std::vector<uint8> GetFramebufferPixel(
const gfx::GpuMemoryBuffer::Format format) {
std::vector<uint8> pixel;
switch (format) {
case gfx::GpuMemoryBuffer::RGBA_8888:
case gfx::GpuMemoryBuffer::BGRA_8888:
pixel.push_back(255u);
pixel.push_back(0u);
pixel.push_back(0u);
pixel.push_back(255u);
return pixel;
case gfx::GpuMemoryBuffer::ATC:
case gfx::GpuMemoryBuffer::ATCIA:
case gfx::GpuMemoryBuffer::DXT1:
case gfx::GpuMemoryBuffer::DXT5:
case gfx::GpuMemoryBuffer::ETC1:
case gfx::GpuMemoryBuffer::RGBX_8888:
case gfx::GpuMemoryBuffer::YUV_420:
NOTREACHED();
return std::vector<uint8>();
}
NOTREACHED();
return std::vector<uint8>();
}
GLenum InternalFormat(gfx::GpuMemoryBuffer::Format format) {
switch (format) {
case gfx::GpuMemoryBuffer::RGBA_8888:
return GL_RGBA;
case gfx::GpuMemoryBuffer::BGRA_8888:
return GL_BGRA_EXT;
case gfx::GpuMemoryBuffer::ATC:
case gfx::GpuMemoryBuffer::ATCIA:
case gfx::GpuMemoryBuffer::DXT1:
case gfx::GpuMemoryBuffer::DXT5:
case gfx::GpuMemoryBuffer::ETC1:
case gfx::GpuMemoryBuffer::RGBX_8888:
case gfx::GpuMemoryBuffer::YUV_420:
NOTREACHED();
return 0;
}
NOTREACHED();
return 0;
}
} // namespace
// An end to end test that tests the whole GpuMemoryBuffer lifecycle.
TEST_P(GpuMemoryBufferTest, Lifecycle) {
GLuint texture_id = 0;
glGenTextures(1, &texture_id);
ASSERT_NE(0u, texture_id);
glBindTexture(GL_TEXTURE_2D, texture_id);
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);
// Create the gpu memory buffer.
scoped_ptr<gfx::GpuMemoryBuffer> buffer(gl_.CreateGpuMemoryBuffer(
gfx::Size(kImageWidth, kImageHeight), GetParam()));
// 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.
uint32 stride = 0;
buffer->GetStride(&stride);
ASSERT_NE(stride, 0u);
std::vector<uint8> pixel = GetTexturePixel(GetParam());
for (int y = 0; y < kImageHeight; ++y) {
for (int x = 0; x < kImageWidth; ++x) {
std::copy(pixel.begin(), pixel.end(),
mapped_buffer + y * stride + x * pixel.size());
}
}
// 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,
InternalFormat(GetParam()));
ASSERT_NE(0u, image_id);
ASSERT_TRUE(gl_.decoder()->GetImageManager()->LookupImage(image_id) != NULL);
// Bind the image.
glBindTexImage2DCHROMIUM(GL_TEXTURE_2D, image_id);
// Build program, buffers and draw the texture.
GLuint vertex_shader =
GLTestHelper::LoadShader(GL_VERTEX_SHADER, kVertexShader);
GLuint fragment_shader =
GLTestHelper::LoadShader(GL_FRAGMENT_SHADER, kFragmentShader);
GLuint program = GLTestHelper::SetupProgram(vertex_shader, fragment_shader);
ASSERT_NE(0u, program);
glUseProgram(program);
GLint sampler_location = glGetUniformLocation(program, "a_texture");
ASSERT_NE(-1, sampler_location);
glUniform1i(sampler_location, 0);
GLuint vbo =
GLTestHelper::SetupUnitQuad(glGetAttribLocation(program, "a_position"));
ASSERT_NE(0u, vbo);
glViewport(0, 0, kImageWidth, kImageHeight);
glDrawArrays(GL_TRIANGLES, 0, 6);
ASSERT_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,
&GetFramebufferPixel(GetParam()).front());
EXPECT_TRUE(GL_NO_ERROR == glGetError());
// Release the image.
glReleaseTexImage2DCHROMIUM(GL_TEXTURE_2D, image_id);
// Clean up.
glDeleteProgram(program);
glDeleteShader(vertex_shader);
glDeleteShader(fragment_shader);
glDeleteBuffers(1, &vbo);
glDestroyImageCHROMIUM(image_id);
glDeleteTextures(1, &texture_id);
}
INSTANTIATE_TEST_CASE_P(GpuMemoryBufferTests,
GpuMemoryBufferTest,
::testing::Values(gfx::GpuMemoryBuffer::RGBA_8888,
gfx::GpuMemoryBuffer::BGRA_8888));
} // namespace gles2
} // namespace gpu
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