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// Copyright (c) 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 <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"
namespace gpu {
class GLTest : public testing::Test {
protected:
virtual void SetUp() {
gl_.Initialize(gfx::Size(4, 4));
}
virtual void TearDown() {
gl_.Destroy();
}
GLManager gl_;
};
// Test that GL is at least minimally working.
TEST_F(GLTest, Basic) {
glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
uint8 expected[] = { 0, 255, 0, 255, };
EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected));
}
TEST_F(GLTest, SimpleShader) {
static const char* v_shader_str =
"attribute vec4 a_Position;\n"
"void main()\n"
"{\n"
" gl_Position = a_Position;\n"
"}\n";
static const char* f_shader_str =
"precision mediump float;\n"
"void main()\n"
"{\n"
" gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n"
"}\n";
GLuint program = GLTestHelper::LoadProgram(v_shader_str, f_shader_str);
glUseProgram(program);
GLuint position_loc = glGetAttribLocation(program, "a_Position");
GLTestHelper::SetupUnitQuad(position_loc);
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, 1, 1, 1, expected_clear));
uint8 expected_draw[] = { 0, 255, 0, 255, };
glDrawArrays(GL_TRIANGLES, 0, 6);
EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_draw));
}
TEST_F(GLTest, GetString) {
EXPECT_STREQ(
"OpenGL ES 2.0 Chromium",
reinterpret_cast<const char*>(glGetString(GL_VERSION)));
EXPECT_STREQ(
"OpenGL ES GLSL ES 1.0 Chromium",
reinterpret_cast<const char*>(glGetString(GL_SHADING_LANGUAGE_VERSION)));
EXPECT_STREQ(
"Chromium",
reinterpret_cast<const char*>(glGetString(GL_RENDERER)));
EXPECT_STREQ(
"Chromium",
reinterpret_cast<const char*>(glGetString(GL_VENDOR)));
}
} // namespace gpu
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