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| 1 // Copyright (c) 2013 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 TEST_F(GLStreamDrawTest, DrawElements) { |
| 86 static GLfloat float_red[4] = { 1.0f, 0.0f, 0.0f, 1.0f, }; |
| 87 static GLfloat float_green[4] = { 0.0f, 1.0f, 0.0f, 1.0f, }; |
| 88 static uint8 expected_red[4] = {255, 0, 0, 255, }; |
| 89 static uint8 expected_green[4] = {0, 255, 0, 255, }; |
| 90 |
| 91 GLuint program = SetupProgram(); |
| 92 GLuint position_loc = glGetAttribLocation(program, "a_position"); |
| 93 GLuint color_loc = glGetAttribLocation(program, "a_color"); |
| 94 GLTestHelper::SetupUnitQuad(position_loc); |
| 95 GLTestHelper::SetupColorsForUnitQuad(color_loc, float_red, GL_STREAM_DRAW); |
| 96 |
| 97 GLuint index_buffer = 0; |
| 98 glGenBuffers(1, &index_buffer); |
| 99 glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, index_buffer); |
| 100 static GLubyte indices[] = { 0, 1, 2, 3, 4, 5, }; |
| 101 glBufferData( |
| 102 GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STREAM_DRAW); |
| 103 glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, NULL); |
| 104 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, kSize, kSize, 0, expected_red)); |
| 105 GLTestHelper::SetupColorsForUnitQuad(color_loc, float_green, GL_STATIC_DRAW); |
| 106 |
| 107 glBufferData( |
| 108 GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW); |
| 109 glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, NULL); |
| 110 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, kSize, kSize, 0, expected_green)); |
| 111 |
| 112 GLTestHelper::CheckGLError("no errors", __LINE__); |
| 113 } |
| 114 |
| 115 TEST_F(GLStreamDrawTest, VertexArrayObjects) { |
| 116 if (!GLTestHelper::HasExtension("GL_OES_vertex_array_object")) { |
| 117 return; |
| 118 } |
| 119 |
| 120 static GLfloat float_red[4] = { 1.0f, 0.0f, 0.0f, 1.0f, }; |
| 121 static GLfloat float_green[4] = { 0.0f, 1.0f, 0.0f, 1.0f, }; |
| 122 static uint8 expected_red[4] = {255, 0, 0, 255, }; |
| 123 static uint8 expected_green[4] = {0, 255, 0, 255, }; |
| 124 |
| 125 GLuint program = SetupProgram(); |
| 126 GLuint position_loc = glGetAttribLocation(program, "a_position"); |
| 127 GLuint color_loc = glGetAttribLocation(program, "a_color"); |
| 128 |
| 129 GLuint vaos[2]; |
| 130 glGenVertexArraysOES(2, vaos); |
| 131 |
| 132 glBindVertexArrayOES(vaos[0]); |
| 133 GLuint position_buffer = GLTestHelper::SetupUnitQuad(position_loc); |
| 134 GLTestHelper::SetupColorsForUnitQuad(color_loc, float_red, GL_STREAM_DRAW); |
| 135 |
| 136 glBindVertexArrayOES(vaos[1]); |
| 137 glBindBuffer(GL_ARRAY_BUFFER, position_buffer); |
| 138 glEnableVertexAttribArray(position_loc); |
| 139 glVertexAttribPointer(position_loc, 2, GL_FLOAT, GL_FALSE, 0, 0); |
| 140 GLTestHelper::SetupColorsForUnitQuad(color_loc, float_green, GL_STATIC_DRAW); |
| 141 |
| 142 for (int ii = 0; ii < 2; ++ii) { |
| 143 glBindVertexArrayOES(vaos[0]); |
| 144 glDrawArrays(GL_TRIANGLES, 0, 6); |
| 145 EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, kSize, kSize, 0, expected_red)); |
| 146 |
| 147 glBindVertexArrayOES(vaos[1]); |
| 148 glDrawArrays(GL_TRIANGLES, 0, 6); |
| 149 EXPECT_TRUE( |
| 150 GLTestHelper::CheckPixels(0, 0, kSize, kSize, 0, expected_green)); |
| 151 } |
| 152 |
| 153 GLTestHelper::CheckGLError("no errors", __LINE__); |
| 154 } |
| 155 |
| 156 } // namespace gpu |
| 157 |
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