1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include <GLES2/gl2.h> 6 #include <GLES2/gl2ext.h> 7 8 #include "gpu/command_buffer/tests/gl_manager.h" 9 #include "gpu/command_buffer/tests/gl_test_utils.h" 10 #include "testing/gmock/include/gmock/gmock.h" 11 #include "testing/gtest/include/gtest/gtest.h" 12 13 namespace gpu { 14 15 class GLTest : public testing::Test { 16 protected: 17 virtual void SetUp() { 18 gl_.Initialize(GLManager::Options()); 19 } 20 21 virtual void TearDown() { 22 gl_.Destroy(); 23 } 24 25 GLManager gl_; 26 }; 27 28 // Test that GL is at least minimally working. 29 TEST_F(GLTest, Basic) { 30 glClearColor(0.0f, 1.0f, 0.0f, 1.0f); 31 glClear(GL_COLOR_BUFFER_BIT); 32 uint8 expected[] = { 0, 255, 0, 255, }; 33 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected)); 34 GLTestHelper::CheckGLError("no errors", __LINE__); 35 } 36 37 TEST_F(GLTest, BasicFBO) { 38 GLuint tex = 0; 39 glGenTextures(1, &tex); 40 GLuint fbo = 0; 41 glGenFramebuffers(1, &fbo); 42 glBindTexture(GL_TEXTURE_2D, tex); 43 scoped_ptr<uint8[]> pixels(new uint8 [16*16*4]); 44 memset(pixels.get(), 0, 16*16*4); 45 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA, GL_UNSIGNED_BYTE, 46 pixels.get()); 47 glGenerateMipmap(GL_TEXTURE_2D); 48 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 49 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 50 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 51 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 52 glBindFramebuffer(GL_FRAMEBUFFER, fbo); 53 glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 54 tex, 0); 55 EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE), 56 glCheckFramebufferStatus(GL_FRAMEBUFFER)); 57 glClearColor(0.0f, 1.0f, 0.0f, 1.0f); 58 glClear(GL_COLOR_BUFFER_BIT); 59 uint8 expected[] = { 0, 255, 0, 255, }; 60 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 16, 16, 0, expected)); 61 glDeleteFramebuffers(1, &fbo); 62 glDeleteTextures(1, &tex); 63 GLTestHelper::CheckGLError("no errors", __LINE__); 64 } 65 66 TEST_F(GLTest, SimpleShader) { 67 static const char* v_shader_str = 68 "attribute vec4 a_Position;\n" 69 "void main()\n" 70 "{\n" 71 " gl_Position = a_Position;\n" 72 "}\n"; 73 static const char* f_shader_str = 74 "precision mediump float;\n" 75 "void main()\n" 76 "{\n" 77 " gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);\n" 78 "}\n"; 79 80 GLuint program = GLTestHelper::LoadProgram(v_shader_str, f_shader_str); 81 glUseProgram(program); 82 GLuint position_loc = glGetAttribLocation(program, "a_Position"); 83 84 GLTestHelper::SetupUnitQuad(position_loc); 85 86 uint8 expected_clear[] = { 127, 0, 255, 0, }; 87 glClearColor(0.5f, 0.0f, 1.0f, 0.0f); 88 glClear(GL_COLOR_BUFFER_BIT); 89 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 1, expected_clear)); 90 uint8 expected_draw[] = { 0, 255, 0, 255, }; 91 glDrawArrays(GL_TRIANGLES, 0, 6); 92 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_draw)); 93 } 94 95 TEST_F(GLTest, GetString) { 96 EXPECT_STREQ( 97 "OpenGL ES 2.0 Chromium", 98 reinterpret_cast<const char*>(glGetString(GL_VERSION))); 99 EXPECT_STREQ( 100 "OpenGL ES GLSL ES 1.0 Chromium", 101 reinterpret_cast<const char*>(glGetString(GL_SHADING_LANGUAGE_VERSION))); 102 EXPECT_STREQ( 103 "Chromium", 104 reinterpret_cast<const char*>(glGetString(GL_RENDERER))); 105 EXPECT_STREQ( 106 "Chromium", 107 reinterpret_cast<const char*>(glGetString(GL_VENDOR))); 108 } 109 110 } // namespace gpu 111 112
