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 *
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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)
55 , m_program(nullptr)
56 {
57 }
58
59 /// Initialize test
init(void)60 void FragmentShadingRateBasic::init(void)
61 {
62 TestCaseBase::init();
63
64 // Skip if required extensions are not supported.
65 if (!m_is_fragment_shading_rate_supported)
66 {
67 throw tcu::NotSupportedError(FRAGMENT_SHADING_RATE_NOT_SUPPORTED, "", __FILE__, __LINE__);
68 }
69 }
70
71 /// Deinitializes all GLES objects created for the test.
deinit(void)72 void FragmentShadingRateBasic::deinit(void)
73 {
74 // Retrieve GLES entry points.
75 const glw::Functions &gl = m_context.getRenderContext().getFunctions();
76
77 // Reset GLES state
78 gl.bindTexture(GL_TEXTURE_2D, 0);
79 gl.bindBuffer(GL_ARRAY_BUFFER, 0);
80 gl.bindFramebuffer(GL_FRAMEBUFFER, 0);
81
82 gl.deleteTextures(1, &m_to_id);
83 gl.deleteFramebuffers(1, &m_fbo_id);
84 gl.deleteBuffers(1, &m_vbo_id);
85
86 delete m_program;
87
88 // Deinitialize base class
89 TestCaseBase::deinit();
90 }
91
92 /// Generate Vertex Shader string
genVS() const93 std::string FragmentShadingRateBasic::genVS() const
94 {
95 std::ostringstream os;
96 os << "#version 310 es \n"
97 << "precision highp float; \n"
98 << "precision highp int; \n"
99 << "layout(location = 0) in vec4 position; \n"
100 << "void main() { \n"
101 << " gl_Position = position; \n"
102 << "}";
103 return os.str();
104 }
105
106 /// Generate Fragment Shader string
genFS() const107 std::string FragmentShadingRateBasic::genFS() const
108 {
109 std::ostringstream os;
110 os << "#version 310 es\n"
111 << "#extension GL_EXT_fragment_shading_rate : enable\n"
112 << "precision highp float;\n"
113 << "precision highp int;\n"
114 << "layout(location = 0) out ivec4 color0;\n"
115 << "uniform int drawID;\n"
116 << "uniform int shadingRate;\n"
117 << "void main() {\n"
118 << " color0.x = gl_ShadingRateEXT;\n"
119 << " color0.y = drawID;\n"
120 << " color0.z = 0;\n"
121 << " color0.w = 0;\n"
122 << " if (gl_ShadingRateEXT != shadingRate) { \n"
123 << " color0.w = " << ERROR_SHADING_RATE_ERROR << ";\n"
124 << " }\n"
125 << "}";
126
127 return os.str();
128 }
129
130 /// Initializes all GLES objects and reference values for the test.
setupTest(void)131 void FragmentShadingRateBasic::setupTest(void)
132 {
133 m_program =
134 new glu::ShaderProgram(m_context.getRenderContext(), glu::makeVtxFragSources(genVS().c_str(), genFS().c_str()));
135
136 if (!m_program->isOk())
137 {
138 m_testCtx.getLog() << tcu::TestLog::Message << "" << tcu::TestLog::EndMessage
139 << tcu::TestLog::ShaderProgram(false, "")
140 << tcu::TestLog::Shader(QP_SHADER_TYPE_VERTEX,
141 m_program->getShaderInfo(glu::SHADERTYPE_VERTEX, 0).source, false,
142 m_program->getShaderInfo(glu::SHADERTYPE_VERTEX, 0).infoLog)
143
144 << tcu::TestLog::Shader(QP_SHADER_TYPE_FRAGMENT,
145 m_program->getShaderInfo(glu::SHADERTYPE_FRAGMENT, 0).source, false,
146 m_program->getShaderInfo(glu::SHADERTYPE_FRAGMENT, 0).infoLog)
147 << tcu::TestLog::EndShaderProgram;
148 TCU_FAIL("Shader creation failed");
149 }
150
151 const glw::Functions &gl = m_context.getRenderContext().getFunctions();
152
153 // Generate framebuffer objects
154 gl.genFramebuffers(1, &m_fbo_id);
155 GLU_EXPECT_NO_ERROR(gl.getError(), "Error setting up framebuffer objects");
156
157 gl.bindFramebuffer(GL_FRAMEBUFFER, m_fbo_id);
158 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding frame buffer object!");
159
160 // Generate a new texture name
161 gl.genTextures(1, &m_to_id);
162 GLU_EXPECT_NO_ERROR(gl.getError(), "Error generating texture objects");
163
164 // Allocate unsigned integer storage
165 gl.bindTexture(GL_TEXTURE_2D, m_to_id);
166 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding texture object!");
167 gl.texStorage2D(GL_TEXTURE_2D, 1, GL_RGBA32UI, m_tcParam.width, m_tcParam.height);
168 GLU_EXPECT_NO_ERROR(gl.getError(), "Error allocating texture object!");
169
170 // Attach it to the framebuffer
171 gl.framebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_to_id, 0);
172 GLU_EXPECT_NO_ERROR(gl.getError(), "Error attaching texture to frame buffer");
173
174 constexpr uint32_t kVerticesCount = (TRIANGLE_COUNT * 3 * 2);
175 float randomVertices[kVerticesCount];
176
177 deRandom rnd;
178 deRandom_init(&rnd, m_tcParam.seed);
179 for (uint32_t i = 0; i < kVerticesCount; i++)
180 {
181 randomVertices[i] = deRandom_getFloat(&rnd) * 2.0f - 1.0f;
182 }
183
184 gl.genBuffers(1, &m_vbo_id);
185 GLU_EXPECT_NO_ERROR(gl.getError(), "Error generate buffer objects");
186
187 gl.bindBuffer(GL_ARRAY_BUFFER, m_vbo_id);
188 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding buffer objects");
189
190 gl.bufferData(GL_ARRAY_BUFFER, sizeof(randomVertices), randomVertices, GL_STATIC_DRAW);
191 GLU_EXPECT_NO_ERROR(gl.getError(), "Error uploading buffer data");
192 }
193
194 /// Test if the error code returned by glGetError is the same as expected.
195 /// If the error is different from expected description is logged.
196 ///
197 /// @param expected_error GLenum error which is expected
198 /// @param description Log message in the case of failure.
199 ///
200 /// @return true if error is equal to expected, false otherwise.
verifyError(const glw::GLenum expected_error,const char * description) const201 glw::GLboolean FragmentShadingRateBasic::verifyError(const glw::GLenum expected_error, const char *description) const
202 {
203 // Retrieve GLES entry points.
204 const glw::Functions &gl = m_context.getRenderContext().getFunctions();
205
206 glw::GLboolean test_passed = true;
207 glw::GLenum error_code = gl.getError();
208
209 if (error_code != expected_error)
210 {
211 test_passed = false;
212
213 m_testCtx.getLog() << tcu::TestLog::Message << description << tcu::TestLog::EndMessage;
214 }
215
216 return test_passed;
217 }
218
219 /// Executes the test.
220 /// Sets the test result to QP_TEST_RESULT_FAIL if the test failed, QP_TEST_RESULT_PASS otherwise.
221 /// Note the function throws exception should an error occur!
222 ///
223 /// @return STOP if the test has finished, CONTINUE to indicate iterate should be called once again.
224 ///
iterate(void)225 tcu::TestNode::IterateResult FragmentShadingRateBasic::iterate(void)
226 {
227 const glw::Functions &gl = m_context.getRenderContext().getFunctions();
228
229 // Initialization
230 m_tcParam.width = DEFAULT_COLOR_FBO_SIZE;
231 m_tcParam.height = DEFAULT_COLOR_FBO_SIZE;
232
233 setupTest();
234
235 constexpr uint32_t kMaxRateCount =
236 16; // SHADING_RATE_1X1_PIXELS_EXT ~ SHADING_RATE_4X4_PIXELS_EXT, actually 9 is enough
237 glw::GLenum shadingRates[kMaxRateCount];
238 glw::GLsizei count = 0;
239
240 gl.getFragmentShadingRatesEXT(1, kMaxRateCount, &count, shadingRates);
241 GLU_EXPECT_NO_ERROR(gl.getError(), "Error to get shading rate getFragmentShadingRatesEXT");
242 DE_ASSERT(count > 0);
243
244 for (glw::GLsizei i = 0; i < count; i++)
245 {
246 m_availableShadingRates.push_back(shadingRates[i]);
247 }
248
249 gl.shadingRateEXT(GL_SHADING_RATE_1X1_PIXELS_EXT);
250 GLU_EXPECT_NO_ERROR(gl.getError(), "Error to set shadingRateEXT as default");
251
252 gl.clearColor(0.0f, 0.0f, 0.0f, 0.0f);
253 gl.clear(GL_COLOR_BUFFER_BIT);
254
255 gl.useProgram(m_program->getProgram());
256 GLU_EXPECT_NO_ERROR(gl.getError(), "Error use program");
257
258 gl.bindBuffer(GL_ARRAY_BUFFER, m_vbo_id);
259 GLU_EXPECT_NO_ERROR(gl.getError(), "Error bind buffer vertex data");
260
261 gl.enableVertexAttribArray(0);
262 GLU_EXPECT_NO_ERROR(gl.getError(), "Error enabling vertex attrib pointer 0");
263
264 gl.vertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 2, nullptr);
265 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding vertex attrib pointer 0");
266
267 // draw ID start from 1
268 for (uint32_t drawID = 1; drawID < TRIANGLE_COUNT; drawID++)
269 {
270 gl.uniform1i(gl.getUniformLocation(m_program->getProgram(), "shadingRate"),
271 fsrutils::packShadingRate(translateDrawIDToShadingRate(drawID)));
272 GLU_EXPECT_NO_ERROR(gl.getError(), "Error set uniform shading Rate value");
273
274 gl.uniform1i(gl.getUniformLocation(m_program->getProgram(), "drawID"), drawID);
275 GLU_EXPECT_NO_ERROR(gl.getError(), "Error set uniform drawID value");
276
277 gl.shadingRateEXT(translateDrawIDToShadingRate(drawID));
278 GLU_EXPECT_NO_ERROR(gl.getError(), "Error set shading rate");
279 gl.drawArrays(GL_TRIANGLES, drawID * 2, 3);
280 GLU_EXPECT_NO_ERROR(gl.getError(), "Error draw a triangle");
281 }
282
283 const uint32_t dataSize = m_tcParam.width * m_tcParam.height * 4;
284 std::vector<uint32_t> resultData(dataSize);
285
286 gl.readPixels(0, 0, m_tcParam.width, m_tcParam.height, GL_RGBA_INTEGER, GL_UNSIGNED_INT, resultData.data());
287 GLU_EXPECT_NO_ERROR(gl.getError(), "Error reading pixels from frame buffer!");
288
289 for (uint32_t y = 0; y < m_tcParam.height; y++)
290 {
291 for (uint32_t x = 0; x < m_tcParam.width; x++)
292 {
293 const uint32_t *sample = &resultData[(y * m_tcParam.width + x) * 4];
294 if (sample[1] == 0) // nothing rendered
295 {
296 continue;
297 }
298
299 const uint32_t shadingRate = sample[0];
300 const uint32_t drawID = sample[1];
301
302 if (fsrutils::packShadingRate(translateDrawIDToShadingRate(drawID)) != shadingRate)
303 {
304 DE_ASSERT(sample[3] == ERROR_SHADING_RATE_ERROR); // sample 3 is error code
305
306 std::stringstream error_sstream;
307
308 error_sstream << "The draw ID is " << drawID << "Shading Rate is" << shadingRate << ", But we expect "
309 << fsrutils::packShadingRate(translateDrawIDToShadingRate(drawID));
310
311 m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, error_sstream.str().c_str());
312
313 return STOP;
314 }
315 }
316 }
317
318 // All done
319 if (m_testCtx.getTestResult() != QP_TEST_RESULT_FAIL)
320 {
321 m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
322 }
323
324 return STOP;
325 }
326
327 /// Translate draw ID to ShadingRate enumeration
328 ///
329 /// @param drawID draw ID to translate shading rate
330 ///
331 /// @return shading rate enumeration
translateDrawIDToShadingRate(uint32_t drawID) const332 glw::GLenum FragmentShadingRateBasic::translateDrawIDToShadingRate(uint32_t drawID) const
333 {
334 return m_availableShadingRates[drawID % m_availableShadingRates.size()];
335 }
336
337 } // namespace glcts
338