1 /*------------------------------------------------------------------------- 2 * drawElements Quality Program OpenGL ES 2.0 Module 3 * ------------------------------------------------- 4 * 5 * Copyright 2014 The Android Open Source Project 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * 19 *//*! 20 * \file 21 * \brief Read pixels tests 22 *//*--------------------------------------------------------------------*/ 23 24 #include "es2fReadPixelsTests.hpp" 25 26 #include "tcuTexture.hpp" 27 #include "tcuTextureUtil.hpp" 28 #include "tcuImageCompare.hpp" 29 #include "tcuTestLog.hpp" 30 #include "tcuRenderTarget.hpp" 31 32 #include "deRandom.hpp" 33 #include "deMath.h" 34 #include "deString.h" 35 #include "deStringUtil.hpp" 36 37 #include "gluDefs.hpp" 38 #include "gluShaderProgram.hpp" 39 #include "gluStrUtil.hpp" 40 #include "gluTextureUtil.hpp" 41 42 #include "glw.h" 43 44 #include <cstring> 45 46 namespace deqp 47 { 48 namespace gles2 49 { 50 namespace Functional 51 { 52 53 class ReadPixelsTest : public TestCase 54 { 55 public: 56 ReadPixelsTest (Context& context, const char* name, const char* description, bool chooseFormat, int alignment); 57 58 IterateResult iterate (void); 59 void render (tcu::Texture2D& reference); 60 61 private: 62 bool m_chooseFormat; 63 int m_alignment; 64 int m_seed; 65 66 void getFormatInfo (tcu::TextureFormat& format, GLint& glFormat, GLint& glType, int& pixelSize); 67 }; 68 69 ReadPixelsTest::ReadPixelsTest (Context& context, const char* name, const char* description, bool chooseFormat, int alignment) 70 : TestCase (context, name, description) 71 , m_chooseFormat (chooseFormat) 72 , m_alignment (alignment) 73 , m_seed (deStringHash(name)) 74 { 75 } 76 77 void ReadPixelsTest::render (tcu::Texture2D& reference) 78 { 79 // Create program 80 const char* vertexSource = 81 "attribute mediump vec2 a_coord;\n" 82 "void main (void)\n" 83 "{\n" 84 "\tgl_Position = vec4(a_coord, 0.0, 1.0);\n" 85 "}\n"; 86 87 const char* fragmentSource = 88 "void main (void)\n" 89 "{\n" 90 "\tgl_FragColor = vec4(0.0, 0.0, 0.0, 1.0);\n" 91 "}\n"; 92 93 glu::ShaderProgram program(m_context.getRenderContext(), glu::makeVtxFragSources(vertexSource, fragmentSource)); 94 95 m_testCtx.getLog() << program; 96 TCU_CHECK(program.isOk()); 97 GLU_CHECK_CALL(glUseProgram(program.getProgram())); 98 99 // Render 100 { 101 const float coords[] = 102 { 103 -0.5f, -0.5f, 104 0.5f, -0.5f, 105 0.5f, 0.5f, 106 107 0.5f, 0.5f, 108 -0.5f, 0.5f, 109 -0.5f, -0.5f 110 }; 111 GLuint coordLoc; 112 113 coordLoc = glGetAttribLocation(program.getProgram(), "a_coord"); 114 GLU_CHECK_MSG("glGetAttribLocation()"); 115 116 GLU_CHECK_CALL(glEnableVertexAttribArray(coordLoc)); 117 118 GLU_CHECK_CALL(glVertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, coords)); 119 120 GLU_CHECK_CALL(glDrawArrays(GL_TRIANGLES, 0, 6)); 121 GLU_CHECK_CALL(glDisableVertexAttribArray(coordLoc)); 122 } 123 124 // Render reference 125 126 const int coordX1 = (int)((-0.5f * reference.getWidth() / 2.0f) + reference.getWidth() / 2.0f); 127 const int coordY1 = (int)((-0.5f * reference.getHeight() / 2.0f) + reference.getHeight() / 2.0f); 128 const int coordX2 = (int)(( 0.5f * reference.getWidth() / 2.0f) + reference.getWidth() / 2.0f); 129 const int coordY2 = (int)(( 0.5f * reference.getHeight() / 2.0f) + reference.getHeight() / 2.0f); 130 131 for (int x = 0; x < reference.getWidth(); x++) 132 { 133 if (x < coordX1 || x > coordX2) 134 continue; 135 136 for (int y = 0; y < reference.getHeight(); y++) 137 { 138 if (y >= coordY1 && y <= coordY2) 139 reference.getLevel(0).setPixel(tcu::Vec4(0.0f, 0.0f, 0.0f, 1.0f), x, y); 140 } 141 } 142 } 143 144 void ReadPixelsTest::getFormatInfo (tcu::TextureFormat& format, GLint& glFormat, GLint& glType, int& pixelSize) 145 { 146 if (m_chooseFormat) 147 { 148 GLU_CHECK_CALL(glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT, &glFormat)); 149 GLU_CHECK_CALL(glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE, &glType)); 150 151 if (glFormat != GL_RGBA && glFormat != GL_BGRA && glFormat != GL_RGB) 152 TCU_THROW(NotSupportedError, ("Unsupported IMPLEMENTATION_COLOR_READ_FORMAT: " + de::toString(glu::getPixelFormatStr(glFormat))).c_str()); 153 if (glu::getTypeName(glType) == DE_NULL) 154 TCU_THROW(NotSupportedError, ("Unsupported GL_IMPLEMENTATION_COLOR_READ_TYPE: " + de::toString(tcu::Format::Hex<4>(glType))).c_str()); 155 156 format = glu::mapGLTransferFormat(glFormat, glType); 157 pixelSize = format.getPixelSize(); 158 } 159 else 160 { 161 format = tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::UNORM_INT8); 162 pixelSize = 1 * 4; 163 glFormat = GL_RGBA; 164 glType = GL_UNSIGNED_BYTE; 165 } 166 } 167 168 TestCase::IterateResult ReadPixelsTest::iterate (void) 169 { 170 // Create reference 171 const int width = 13; 172 const int height = 13; 173 174 de::Random rnd(m_seed); 175 176 tcu::TextureFormat format(tcu::TextureFormat::RGBA, tcu::TextureFormat::UNORM_INT8); 177 int pixelSize; 178 GLint glFormat; 179 GLint glType; 180 181 getFormatInfo(format, glFormat, glType, pixelSize); 182 m_testCtx.getLog() << tcu::TestLog::Message << "Format: " << glu::getPixelFormatStr(glFormat) << ", Type: " << glu::getTypeStr(glType) << tcu::TestLog::EndMessage; 183 184 tcu::Texture2D reference(format, width, height); 185 reference.allocLevel(0); 186 187 GLU_CHECK_CALL(glViewport(0, 0, width, height)); 188 189 // Clear color 190 { 191 const float red = rnd.getFloat(); 192 const float green = rnd.getFloat(); 193 const float blue = rnd.getFloat(); 194 const float alpha = 1.0f; 195 196 m_testCtx.getLog() << tcu::TestLog::Message << "Clear color: (" << red << ", " << green << ", " << blue << ", " << alpha << ")" << tcu::TestLog::EndMessage; 197 198 // Clear target 199 GLU_CHECK_CALL(glClearColor(red, green, blue, alpha)); 200 GLU_CHECK_CALL(glClear(GL_COLOR_BUFFER_BIT)); 201 202 tcu::clear(reference.getLevel(0), tcu::Vec4(red, green, blue, alpha)); 203 } 204 205 render(reference); 206 207 std::vector<deUint8> pixelData; 208 const int rowPitch = m_alignment * deCeilFloatToInt32(pixelSize * width / (float)m_alignment); 209 210 pixelData.resize(rowPitch * height, 0); 211 212 GLU_CHECK_CALL(glPixelStorei(GL_PACK_ALIGNMENT, m_alignment)); 213 GLU_CHECK_CALL(glReadPixels(0, 0, width, height, glFormat, glType, &(pixelData[0]))); 214 215 if (m_context.getRenderTarget().getNumSamples() > 1) 216 { 217 const tcu::IVec4 formatBitDepths = tcu::getTextureFormatBitDepth(format); 218 const deUint8 redThreshold = (deUint8)deCeilFloatToInt32(256.0f * (2.0f / (1 << deMin32(m_context.getRenderTarget().getPixelFormat().redBits, formatBitDepths.x())))); 219 const deUint8 greenThreshold = (deUint8)deCeilFloatToInt32(256.0f * (2.0f / (1 << deMin32(m_context.getRenderTarget().getPixelFormat().greenBits, formatBitDepths.y())))); 220 const deUint8 blueThreshold = (deUint8)deCeilFloatToInt32(256.0f * (2.0f / (1 << deMin32(m_context.getRenderTarget().getPixelFormat().blueBits, formatBitDepths.z())))); 221 const deUint8 alphaThreshold = (deUint8)deCeilFloatToInt32(256.0f * (2.0f / (1 << deMin32(m_context.getRenderTarget().getPixelFormat().alphaBits, formatBitDepths.w())))); 222 223 // bilinearCompare only accepts RGBA, UINT8 224 tcu::Texture2D referenceRGBA8 (tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::UNORM_INT8), width, height); 225 tcu::Texture2D resultRGBA8 (tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::UNORM_INT8), width, height); 226 227 referenceRGBA8.allocLevel(0); 228 resultRGBA8.allocLevel(0); 229 230 tcu::copy(referenceRGBA8.getLevel(0), reference.getLevel(0)); 231 tcu::copy(resultRGBA8.getLevel(0), tcu::PixelBufferAccess(format, width, height, 1, rowPitch, 0, &(pixelData[0]))); 232 233 if (tcu::bilinearCompare(m_testCtx.getLog(), "Result", "Result", referenceRGBA8.getLevel(0), resultRGBA8.getLevel(0), tcu::RGBA(redThreshold, greenThreshold, blueThreshold, alphaThreshold), tcu::COMPARE_LOG_RESULT)) 234 m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass"); 235 else 236 m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Fail"); 237 } 238 else 239 { 240 const tcu::IVec4 formatBitDepths = tcu::getTextureFormatBitDepth(format); 241 const float redThreshold = 2.0f / (1 << deMin32(m_context.getRenderTarget().getPixelFormat().redBits, formatBitDepths.x())); 242 const float greenThreshold = 2.0f / (1 << deMin32(m_context.getRenderTarget().getPixelFormat().greenBits, formatBitDepths.y())); 243 const float blueThreshold = 2.0f / (1 << deMin32(m_context.getRenderTarget().getPixelFormat().blueBits, formatBitDepths.z())); 244 const float alphaThreshold = 2.0f / (1 << deMin32(m_context.getRenderTarget().getPixelFormat().alphaBits, formatBitDepths.w())); 245 246 // Compare 247 if (tcu::floatThresholdCompare(m_testCtx.getLog(), "Result", "Result", reference.getLevel(0), tcu::PixelBufferAccess(format, width, height, 1, rowPitch, 0, &(pixelData[0])), tcu::Vec4(redThreshold, greenThreshold, blueThreshold, alphaThreshold), tcu::COMPARE_LOG_RESULT)) 248 m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass"); 249 else 250 m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Fail"); 251 } 252 253 return STOP; 254 } 255 256 ReadPixelsTests::ReadPixelsTests (Context& context) 257 : TestCaseGroup(context, "read_pixels", "ReadPixel tests") 258 { 259 } 260 261 void ReadPixelsTests::init (void) 262 { 263 addChild(new ReadPixelsTest(m_context, "rgba_ubyte_align_1", "", false, 1)); 264 addChild(new ReadPixelsTest(m_context, "rgba_ubyte_align_2", "", false, 2)); 265 addChild(new ReadPixelsTest(m_context, "rgba_ubyte_align_4", "", false, 4)); 266 addChild(new ReadPixelsTest(m_context, "rgba_ubyte_align_8", "", false, 8)); 267 268 addChild(new ReadPixelsTest(m_context, "choose_align_1", "", true, 1)); 269 addChild(new ReadPixelsTest(m_context, "choose_align_2", "", true, 2)); 270 addChild(new ReadPixelsTest(m_context, "choose_align_4", "", true, 4)); 271 addChild(new ReadPixelsTest(m_context, "choose_align_8", "", true, 8)); 272 } 273 274 } // Functional 275 } // gles2 276 } // deqp 277
