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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/gl2ext.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"
#define SHADER(Src) #Src
namespace gpu {
class GLVirtualContextsTest : public testing::Test {
protected:
static const int kSize0 = 4;
static const int kSize1 = 8;
static const int kSize2 = 16;
virtual void SetUp() {
GLManager::Options options;
options.size = gfx::Size(kSize0, kSize0);
gl_real_.Initialize(options);
gl_real_shared_.Initialize(options);
options.virtual_manager = &gl_real_shared_;
options.size = gfx::Size(kSize1, kSize1);
gl1_.Initialize(options);
options.size = gfx::Size(kSize2, kSize2);
gl2_.Initialize(options);
}
virtual void TearDown() {
gl1_.Destroy();
gl2_.Destroy();
gl_real_shared_.Destroy();
gl_real_.Destroy();
}
GLManager gl_real_;
GLManager gl_real_shared_;
GLManager gl1_;
GLManager gl2_;
};
namespace {
#if !defined(OS_ANDROID)
void SetupSimpleShader(const uint8* color) {
static const char* v_shader_str = SHADER(
attribute vec4 a_Position;
void main()
{
gl_Position = a_Position;
}
);
static const char* f_shader_str = SHADER(
precision mediump float;
uniform vec4 u_color;
void main()
{
gl_FragColor = u_color;
}
);
GLuint program = GLTestHelper::LoadProgram(v_shader_str, f_shader_str);
glUseProgram(program);
GLuint position_loc = glGetAttribLocation(program, "a_Position");
GLTestHelper::SetupUnitQuad(position_loc);
GLuint color_loc = glGetUniformLocation(program, "u_color");
glUniform4f(
color_loc,
color[0] / 255.0f,
color[1] / 255.0f,
color[2] / 255.0f,
color[3] / 255.0f);
}
void TestDraw(int size) {
uint8 expected_clear[] = { 127, 0, 255, 0, };
glClearColor(0.5f, 0.0f, 1.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, size, size, 1, expected_clear));
glDrawArrays(GL_TRIANGLES, 0, 6);
}
#endif // !defined(OS_ANDROID)
} // anonymous namespace
// http://crbug.com/281565
#if !defined(OS_ANDROID)
TEST_F(GLVirtualContextsTest, Basic) {
struct TestInfo {
int size;
uint8 color[4];
GLManager* manager;
};
const int kNumTests = 3;
TestInfo tests[] = {
{ kSize0, { 255, 0, 0, 0, }, &gl_real_, },
{ kSize1, { 0, 255, 0, 0, }, &gl1_, },
{ kSize2, { 0, 0, 255, 0, }, &gl2_, },
};
for (int ii = 0; ii < kNumTests; ++ii) {
const TestInfo& test = tests[ii];
GLManager* gl_manager = test.manager;
gl_manager->MakeCurrent();
SetupSimpleShader(test.color);
}
for (int ii = 0; ii < kNumTests; ++ii) {
const TestInfo& test = tests[ii];
GLManager* gl_manager = test.manager;
gl_manager->MakeCurrent();
TestDraw(test.size);
}
for (int ii = 0; ii < kNumTests; ++ii) {
const TestInfo& test = tests[ii];
GLManager* gl_manager = test.manager;
gl_manager->MakeCurrent();
EXPECT_TRUE(GLTestHelper::CheckPixels(
0, 0, test.size, test.size, 0, test.color));
}
for (int ii = 0; ii < kNumTests; ++ii) {
const TestInfo& test = tests[ii];
GLManager* gl_manager = test.manager;
gl_manager->MakeCurrent();
GLTestHelper::CheckGLError("no errors", __LINE__);
}
}
#endif
} // namespace gpu
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