1 /*-------------------------------------------------------------------------
2 * OpenGL Conformance Test Suite
3 * -----------------------------
4 *
5 * Copyright (c) 2022-2022 The Khronos Group Inc.
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 /*!
21 * \file esextcFragmentShadingRateBasic.hpp
22 * \brief FragmentShadingRateEXT basic
23 */ /*-------------------------------------------------------------------*/
24
25 #include "esextcFragmentShadingRateBasic.hpp"
26 #include "deRandom.h"
27 #include "esextcFragmentShadingRateTests.hpp"
28 #include "gluContextInfo.hpp"
29 #include "gluDefs.hpp"
30 #include "gluShaderProgram.hpp"
31 #include "glwEnums.hpp"
32 #include "glwFunctions.hpp"
33 #include "tcuTestLog.hpp"
34
35 #define DEFAULT_COLOR_FBO_SIZE 255
36 #define TRIANGLE_COUNT 100
37
38 namespace glcts
39 {
40
41 enum
42 {
43 ERROR_NONE = 0,
44 ERROR_SHADING_RATE_ERROR = 1,
45 };
46
47 /// Constructor
48 ///
49 /// @param context Test context
50 /// @param name Test case's name
51 /// @param description Test case's description
FragmentShadingRateBasic(Context& context, const ExtParameters& extParams, const char* name, const char* description)52 FragmentShadingRateBasic::FragmentShadingRateBasic(Context& context, const ExtParameters& extParams, const char* name,
53 const char* description)
54 : TestCaseBase(context, extParams, name, description), m_program(nullptr)
55 {
56 }
57
58 /// Initialize test
init(void)59 void FragmentShadingRateBasic::init(void)
60 {
61 TestCaseBase::init();
62
63 // Skip if required extensions are not supported.
64 if (!m_is_fragment_shading_rate_supported)
65 {
66 throw tcu::NotSupportedError(FRAGMENT_SHADING_RATE_NOT_SUPPORTED, "", __FILE__, __LINE__);
67 }
68 }
69
70 /// Deinitializes all GLES objects created for the test.
deinit(void)71 void FragmentShadingRateBasic::deinit(void)
72 {
73 // Retrieve GLES entry points.
74 const glw::Functions& gl = m_context.getRenderContext().getFunctions();
75
76 // Reset GLES state
77 gl.bindTexture(GL_TEXTURE_2D, 0);
78 gl.bindBuffer(GL_ARRAY_BUFFER, 0);
79 gl.bindFramebuffer(GL_FRAMEBUFFER, 0);
80
81 gl.deleteTextures(1, &m_to_id);
82 gl.deleteFramebuffers(1, &m_fbo_id);
83 gl.deleteBuffers(1, &m_vbo_id);
84
85 delete m_program;
86
87 // Deinitialize base class
88 TestCaseBase::deinit();
89 }
90
91 /// Generate Vertex Shader string
genVS() const92 std::string FragmentShadingRateBasic::genVS() const
93 {
94 std::ostringstream os;
95 os << "#version 310 es \n"
96 << "precision highp float; \n"
97 << "precision highp int; \n"
98 << "layout(location = 0) in vec4 position; \n"
99 << "void main() { \n"
100 << " gl_Position = position; \n"
101 << "}";
102 return os.str();
103 }
104
105 /// Generate Fragment Shader string
genFS() const106 std::string FragmentShadingRateBasic::genFS() const
107 {
108 std::ostringstream os;
109 os << "#version 310 es\n"
110 << "#extension GL_EXT_fragment_shading_rate : enable\n"
111 << "precision highp float;\n"
112 << "precision highp int;\n"
113 << "layout(location = 0) out ivec4 color0;\n"
114 << "uniform int drawID;\n"
115 << "uniform int shadingRate;\n"
116 << "void main() {\n"
117 << " color0.x = gl_ShadingRateEXT;\n"
118 << " color0.y = drawID;\n"
119 << " color0.z = 0;\n"
120 << " color0.w = 0;\n"
121 << " if (gl_ShadingRateEXT != shadingRate) { \n"
122 << " color0.w = " << ERROR_SHADING_RATE_ERROR << ";\n"
123 << " }\n"
124 << "}";
125
126 return os.str();
127 }
128
129 /// Initializes all GLES objects and reference values for the test.
setupTest(void)130 void FragmentShadingRateBasic::setupTest(void)
131 {
132 m_program =
133 new glu::ShaderProgram(m_context.getRenderContext(), glu::makeVtxFragSources(genVS().c_str(), genFS().c_str()));
134
135 if (!m_program->isOk())
136 {
137 m_testCtx.getLog() << tcu::TestLog::Message << "" << tcu::TestLog::EndMessage
138 << tcu::TestLog::ShaderProgram(false, "")
139 << tcu::TestLog::Shader(QP_SHADER_TYPE_VERTEX,
140 m_program->getShaderInfo(glu::SHADERTYPE_VERTEX, 0).source, false,
141 m_program->getShaderInfo(glu::SHADERTYPE_VERTEX, 0).infoLog)
142
143 << tcu::TestLog::Shader(QP_SHADER_TYPE_FRAGMENT,
144 m_program->getShaderInfo(glu::SHADERTYPE_FRAGMENT, 0).source, false,
145 m_program->getShaderInfo(glu::SHADERTYPE_FRAGMENT, 0).infoLog)
146 << tcu::TestLog::EndShaderProgram;
147 TCU_FAIL("Shader creation failed");
148 }
149
150 const glw::Functions& gl = m_context.getRenderContext().getFunctions();
151
152 // Generate framebuffer objects
153 gl.genFramebuffers(1, &m_fbo_id);
154 GLU_EXPECT_NO_ERROR(gl.getError(), "Error setting up framebuffer objects");
155
156 gl.bindFramebuffer(GL_FRAMEBUFFER, m_fbo_id);
157 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding frame buffer object!");
158
159 // Generate a new texture name
160 gl.genTextures(1, &m_to_id);
161 GLU_EXPECT_NO_ERROR(gl.getError(), "Error generating texture objects");
162
163 // Allocate unsigned integer storage
164 gl.bindTexture(GL_TEXTURE_2D, m_to_id);
165 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding texture object!");
166 gl.texStorage2D(GL_TEXTURE_2D, 1, GL_RGBA32UI, m_tcParam.width, m_tcParam.height);
167 GLU_EXPECT_NO_ERROR(gl.getError(), "Error allocating texture object!");
168
169 // Attach it to the framebuffer
170 gl.framebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_to_id, 0);
171 GLU_EXPECT_NO_ERROR(gl.getError(), "Error attaching texture to frame buffer");
172
173 constexpr deUint32 kVerticesCount = (TRIANGLE_COUNT * 3 * 2);
174 float randomVertices[kVerticesCount];
175
176 deRandom rnd;
177 deRandom_init(&rnd, m_tcParam.seed);
178 for (deUint32 i = 0; i < kVerticesCount; i++)
179 {
180 randomVertices[i] = deRandom_getFloat(&rnd) * 2.0f - 1.0f;
181 }
182
183 gl.genBuffers(1, &m_vbo_id);
184 GLU_EXPECT_NO_ERROR(gl.getError(), "Error generate buffer objects");
185
186 gl.bindBuffer(GL_ARRAY_BUFFER, m_vbo_id);
187 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding buffer objects");
188
189 gl.bufferData(GL_ARRAY_BUFFER, sizeof(randomVertices), randomVertices, GL_STATIC_DRAW);
190 GLU_EXPECT_NO_ERROR(gl.getError(), "Error uploading buffer data");
191 }
192
193 /// Test if the error code returned by glGetError is the same as expected.
194 /// If the error is different from expected description is logged.
195 ///
196 /// @param expected_error GLenum error which is expected
197 /// @param description Log message in the case of failure.
198 ///
199 /// @return true if error is equal to expected, false otherwise.
verifyError(const glw::GLenum expected_error, const char* description) const200 glw::GLboolean FragmentShadingRateBasic::verifyError(const glw::GLenum expected_error, const char* description) const
201 {
202 // Retrieve GLES entry points.
203 const glw::Functions& gl = m_context.getRenderContext().getFunctions();
204
205 glw::GLboolean test_passed = true;
206 glw::GLenum error_code = gl.getError();
207
208 if (error_code != expected_error)
209 {
210 test_passed = false;
211
212 m_testCtx.getLog() << tcu::TestLog::Message << description << tcu::TestLog::EndMessage;
213 }
214
215 return test_passed;
216 }
217
218 /// Executes the test.
219 /// Sets the test result to QP_TEST_RESULT_FAIL if the test failed, QP_TEST_RESULT_PASS otherwise.
220 /// Note the function throws exception should an error occur!
221 ///
222 /// @return STOP if the test has finished, CONTINUE to indicate iterate should be called once again.
223 ///
iterate(void)224 tcu::TestNode::IterateResult FragmentShadingRateBasic::iterate(void)
225 {
226 const glw::Functions& gl = m_context.getRenderContext().getFunctions();
227
228 // Initialization
229 m_tcParam.width = DEFAULT_COLOR_FBO_SIZE;
230 m_tcParam.height = DEFAULT_COLOR_FBO_SIZE;
231
232 setupTest();
233
234 constexpr deUint32 kMaxRateCount =
235 16; // SHADING_RATE_1X1_PIXELS_EXT ~ SHADING_RATE_4X4_PIXELS_EXT, actually 9 is enough
236 glw::GLenum shadingRates[kMaxRateCount];
237 glw::GLsizei count = 0;
238
239 gl.getFragmentShadingRatesEXT(1, kMaxRateCount, &count, shadingRates);
240 GLU_EXPECT_NO_ERROR(gl.getError(), "Error to get shading rate getFragmentShadingRatesEXT");
241 DE_ASSERT(count > 0);
242
243 for (glw::GLsizei i = 0; i < count; i++)
244 {
245 m_availableShadingRates.push_back(shadingRates[i]);
246 }
247
248 gl.shadingRateEXT(GL_SHADING_RATE_1X1_PIXELS_EXT);
249 GLU_EXPECT_NO_ERROR(gl.getError(), "Error to set shadingRateEXT as default");
250
251 gl.clearColor(0.0f, 0.0f, 0.0f, 0.0f);
252 gl.clear(GL_COLOR_BUFFER_BIT);
253
254 gl.useProgram(m_program->getProgram());
255 GLU_EXPECT_NO_ERROR(gl.getError(), "Error use program");
256
257 gl.bindBuffer(GL_ARRAY_BUFFER, m_vbo_id);
258 GLU_EXPECT_NO_ERROR(gl.getError(), "Error bind buffer vertex data");
259
260 gl.enableVertexAttribArray(0);
261 GLU_EXPECT_NO_ERROR(gl.getError(), "Error enabling vertex attrib pointer 0");
262
263 gl.vertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 2, nullptr);
264 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding vertex attrib pointer 0");
265
266 // draw ID start from 1
267 for (deUint32 drawID = 1; drawID < TRIANGLE_COUNT; drawID++)
268 {
269 gl.uniform1i(gl.getUniformLocation(m_program->getProgram(), "shadingRate"),
270 fsrutils::packShadingRate(translateDrawIDToShadingRate(drawID)));
271 GLU_EXPECT_NO_ERROR(gl.getError(), "Error set uniform shading Rate value");
272
273 gl.uniform1i(gl.getUniformLocation(m_program->getProgram(), "drawID"), drawID);
274 GLU_EXPECT_NO_ERROR(gl.getError(), "Error set uniform drawID value");
275
276 gl.shadingRateEXT(translateDrawIDToShadingRate(drawID));
277 GLU_EXPECT_NO_ERROR(gl.getError(), "Error set shading rate");
278 gl.drawArrays(GL_TRIANGLES, drawID * 2, 3);
279 GLU_EXPECT_NO_ERROR(gl.getError(), "Error draw a triangle");
280 }
281
282 const deUint32 dataSize = m_tcParam.width * m_tcParam.height * 4;
283 std::vector<deUint32> resultData(dataSize);
284
285 gl.readPixels(0, 0, m_tcParam.width, m_tcParam.height, GL_RGBA_INTEGER, GL_UNSIGNED_INT, resultData.data());
286 GLU_EXPECT_NO_ERROR(gl.getError(), "Error reading pixels from frame buffer!");
287
288 for (deUint32 y = 0; y < m_tcParam.height; y++)
289 {
290 for (deUint32 x = 0; x < m_tcParam.width; x++)
291 {
292 const deUint32* sample = &resultData[(y * m_tcParam.width + x) * 4];
293 if (sample[1] == 0) // nothing rendered
294 {
295 continue;
296 }
297
298 const deUint32 shadingRate = sample[0];
299 const deUint32 drawID = sample[1];
300
301 if (fsrutils::packShadingRate(translateDrawIDToShadingRate(drawID)) != shadingRate)
302 {
303 DE_ASSERT(sample[3] == ERROR_SHADING_RATE_ERROR); // sample 3 is error code
304
305 std::stringstream error_sstream;
306
307 error_sstream << "The draw ID is " << drawID << "Shading Rate is" << shadingRate << ", But we expect "
308 << fsrutils::packShadingRate(translateDrawIDToShadingRate(drawID));
309
310 m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, error_sstream.str().c_str());
311
312 return STOP;
313 }
314 }
315 }
316
317 // All done
318 if (m_testCtx.getTestResult() != QP_TEST_RESULT_FAIL)
319 {
320 m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
321 }
322
323 return STOP;
324 }
325
326 /// Translate draw ID to ShadingRate enumeration
327 ///
328 /// @param drawID draw ID to translate shading rate
329 ///
330 /// @return shading rate enumeration
translateDrawIDToShadingRate(deUint32 drawID) const331 glw::GLenum FragmentShadingRateBasic::translateDrawIDToShadingRate(deUint32 drawID) const
332 {
333 return m_availableShadingRates[drawID % m_availableShadingRates.size()];
334 }
335
336 } // namespace glcts
337