1 // Copyright 2014 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 14 #define SHADER(Src) #Src 15 16 namespace gpu { 17 18 class GLStreamDrawTest : public testing::Test { 19 protected: 20 static const int kSize = 4; 21 22 virtual void SetUp() { 23 GLManager::Options options; 24 options.size = gfx::Size(kSize, kSize); 25 gl_.Initialize(options); 26 } 27 28 virtual void TearDown() { 29 gl_.Destroy(); 30 } 31 32 GLManager gl_; 33 }; 34 35 namespace { 36 37 GLuint SetupProgram() { 38 static const char* v_shader_str = SHADER( 39 attribute vec4 a_position; 40 attribute vec4 a_color; 41 varying vec4 v_color; 42 void main() 43 { 44 gl_Position = a_position; 45 v_color = a_color; 46 } 47 ); 48 49 static const char* f_shader_str = SHADER( 50 precision mediump float; 51 varying vec4 v_color; 52 void main() 53 { 54 gl_FragColor = v_color; 55 } 56 ); 57 58 GLuint program = GLTestHelper::LoadProgram(v_shader_str, f_shader_str); 59 glUseProgram(program); 60 return program; 61 } 62 63 } // anonymous namespace. 64 65 TEST_F(GLStreamDrawTest, Basic) { 66 static GLfloat float_red[4] = { 1.0f, 0.0f, 0.0f, 1.0f, }; 67 static GLfloat float_green[4] = { 0.0f, 1.0f, 0.0f, 1.0f, }; 68 static uint8 expected_red[4] = {255, 0, 0, 255, }; 69 static uint8 expected_green[4] = {0, 255, 0, 255, }; 70 71 GLuint program = SetupProgram(); 72 GLuint position_loc = glGetAttribLocation(program, "a_position"); 73 GLuint color_loc = glGetAttribLocation(program, "a_color"); 74 GLTestHelper::SetupUnitQuad(position_loc); 75 GLTestHelper::SetupColorsForUnitQuad(color_loc, float_red, GL_STREAM_DRAW); 76 glDrawArrays(GL_TRIANGLES, 0, 6); 77 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, kSize, kSize, 0, expected_red)); 78 GLTestHelper::SetupColorsForUnitQuad(color_loc, float_green, GL_STATIC_DRAW); 79 glDrawArrays(GL_TRIANGLES, 0, 6); 80 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, kSize, kSize, 0, expected_green)); 81 82 GLTestHelper::CheckGLError("no errors", __LINE__); 83 } 84 85 // http://crbug.com/281565 86 #if !defined(OS_ANDROID) 87 TEST_F(GLStreamDrawTest, DrawElements) { 88 static GLfloat float_red[4] = { 1.0f, 0.0f, 0.0f, 1.0f, }; 89 static GLfloat float_green[4] = { 0.0f, 1.0f, 0.0f, 1.0f, }; 90 static uint8 expected_red[4] = {255, 0, 0, 255, }; 91 static uint8 expected_green[4] = {0, 255, 0, 255, }; 92 93 GLuint program = SetupProgram(); 94 GLuint position_loc = glGetAttribLocation(program, "a_position"); 95 GLuint color_loc = glGetAttribLocation(program, "a_color"); 96 GLTestHelper::SetupUnitQuad(position_loc); 97 GLTestHelper::SetupColorsForUnitQuad(color_loc, float_red, GL_STREAM_DRAW); 98 99 GLuint index_buffer = 0; 100 glGenBuffers(1, &index_buffer); 101 glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, index_buffer); 102 static GLubyte indices[] = { 0, 1, 2, 3, 4, 5, }; 103 glBufferData( 104 GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STREAM_DRAW); 105 glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, NULL); 106 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, kSize, kSize, 0, expected_red)); 107 GLTestHelper::SetupColorsForUnitQuad(color_loc, float_green, GL_STATIC_DRAW); 108 109 glBufferData( 110 GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW); 111 glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, NULL); 112 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, kSize, kSize, 0, expected_green)); 113 114 GLTestHelper::CheckGLError("no errors", __LINE__); 115 } 116 #endif 117 118 TEST_F(GLStreamDrawTest, VertexArrayObjects) { 119 if (!GLTestHelper::HasExtension("GL_OES_vertex_array_object")) { 120 return; 121 } 122 123 static GLfloat float_red[4] = { 1.0f, 0.0f, 0.0f, 1.0f, }; 124 static GLfloat float_green[4] = { 0.0f, 1.0f, 0.0f, 1.0f, }; 125 static uint8 expected_red[4] = {255, 0, 0, 255, }; 126 static uint8 expected_green[4] = {0, 255, 0, 255, }; 127 128 GLuint program = SetupProgram(); 129 GLuint position_loc = glGetAttribLocation(program, "a_position"); 130 GLuint color_loc = glGetAttribLocation(program, "a_color"); 131 132 GLuint vaos[2]; 133 glGenVertexArraysOES(2, vaos); 134 135 glBindVertexArrayOES(vaos[0]); 136 GLuint position_buffer = GLTestHelper::SetupUnitQuad(position_loc); 137 GLTestHelper::SetupColorsForUnitQuad(color_loc, float_red, GL_STREAM_DRAW); 138 139 glBindVertexArrayOES(vaos[1]); 140 glBindBuffer(GL_ARRAY_BUFFER, position_buffer); 141 glEnableVertexAttribArray(position_loc); 142 glVertexAttribPointer(position_loc, 2, GL_FLOAT, GL_FALSE, 0, 0); 143 GLTestHelper::SetupColorsForUnitQuad(color_loc, float_green, GL_STATIC_DRAW); 144 145 for (int ii = 0; ii < 2; ++ii) { 146 glBindVertexArrayOES(vaos[0]); 147 glDrawArrays(GL_TRIANGLES, 0, 6); 148 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, kSize, kSize, 0, expected_red)); 149 150 glBindVertexArrayOES(vaos[1]); 151 glDrawArrays(GL_TRIANGLES, 0, 6); 152 EXPECT_TRUE( 153 GLTestHelper::CheckPixels(0, 0, kSize, kSize, 0, expected_green)); 154 } 155 156 GLTestHelper::CheckGLError("no errors", __LINE__); 157 } 158 159 } // namespace gpu 160 161
