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 esextcFragmentShadingRateAttachmentTests.hpp
22 * \brief FragmentShadingRateEXT Attachment related tests
23 */ /*-------------------------------------------------------------------*/
24
25 #include "esextcFragmentShadingRateAttachmentTests.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 TRIANGLE_COUNT 100
36
37 namespace glcts
38 {
39
40 /// Constructor
41 ///
42 /// @param context Test context
43 /// @param extParams extension params
44 /// @param testcaseParam Test case params
45 /// @param name Test case's name
46 /// @param description Test case's description
FragmentShadingRateAttachment(Context & context,const ExtParameters & extParams,const FragmentShadingRateAttachment::TestcaseParam & testcaseParam,const char * name,const char * description)47 FragmentShadingRateAttachment::FragmentShadingRateAttachment(
48 Context& context, const ExtParameters& extParams, const FragmentShadingRateAttachment::TestcaseParam& testcaseParam,
49 const char* name, const char* description)
50 : TestCaseBase(context, extParams, name, description), m_tcParam(testcaseParam), m_program(nullptr)
51 {
52 }
53
54 /// Initialize test
init(void)55 void FragmentShadingRateAttachment::init(void)
56 {
57 TestCaseBase::init();
58
59 // Skip if required extensions are not supported.
60 if (!m_is_fragment_shading_rate_supported)
61 {
62 throw tcu::NotSupportedError(FRAGMENT_SHADING_RATE_NOT_SUPPORTED, "", __FILE__, __LINE__);
63 }
64
65 if (!m_is_fragment_shading_rate_attachment_supported)
66 {
67 if (m_tcParam.attachmentShadingRate)
68 {
69 throw tcu::NotSupportedError(FRAGMENT_SHADING_RATE_NOT_SUPPORTED, "", __FILE__, __LINE__);
70 }
71
72 if (m_tcParam.multiShadingRate)
73 {
74 throw tcu::NotSupportedError(FRAGMENT_SHADING_RATE_NOT_SUPPORTED, "", __FILE__, __LINE__);
75 }
76 }
77
78 if (!m_is_multiview_ovr_supported)
79 {
80 throw tcu::NotSupportedError(MULTIVIEW_OVR_NOT_SUPPORTED, "", __FILE__, __LINE__);
81 }
82 }
83
84 /// Deinitializes all GLES objects created for the test.
deinit(void)85 void FragmentShadingRateAttachment::deinit(void)
86 {
87 // Retrieve GLES entry points.
88 const glw::Functions& gl = m_context.getRenderContext().getFunctions();
89
90 // Reset GLES state
91 gl.bindTexture(GL_TEXTURE_2D, 0);
92 gl.bindBuffer(GL_ARRAY_BUFFER, 0);
93 gl.bindFramebuffer(GL_FRAMEBUFFER, 0);
94
95 gl.deleteTextures(1, &m_to_id);
96 gl.deleteFramebuffers(1, &m_fbo_id);
97 gl.deleteBuffers(1, &m_vbo_id);
98
99 delete m_program;
100
101 // Deinitialize base class
102 TestCaseBase::deinit();
103 }
104
105 /// Generate Vertex Shader string
genVS() const106 std::string FragmentShadingRateAttachment::genVS() const
107 {
108 std::ostringstream os;
109 os << "#version 310 es\n";
110
111 if (m_tcParam.testKind == TestKind::MultiView)
112 {
113 os << "#extension GL_OVR_multiview: enable\n"
114 "layout(num_views = 2) in;\n";
115 }
116
117 os << "precision highp float;\n"
118 << "precision highp int;\n"
119 << "uniform int drawID;\n"
120 << "layout(location = 0) in vec4 position;\n"
121 << "void main() {\n"
122 << " gl_Position = position;\n";
123 if (m_tcParam.testKind == TestKind::MultiView)
124 {
125 os << "if (gl_ViewID_OVR == 1u) {\n"
126 << "gl_Position.x += 0.1;\n"
127 << "}\n";
128 }
129 os << "}";
130 return os.str();
131 }
132
133 /// Generate Fragment Shader string
genFS() const134 std::string FragmentShadingRateAttachment::genFS() const
135 {
136 std::ostringstream os;
137 os << "#version 310 es\n"
138 << "#extension GL_EXT_fragment_shading_rate : enable\n"
139 << "precision highp float;\n"
140 << "precision highp int;\n"
141 << "layout(location = 0) out ivec4 color0;\n"
142 << "uniform int drawID;\n"
143 << "void main() {\n"
144 << " color0.x = gl_ShadingRateEXT;\n"
145 << " color0.y = drawID;\n"
146 << " color0.z = 0;\n"
147 << " color0.w = 0;\n"
148 << "}";
149
150 return os.str();
151 }
152
153 /// Initializes all GLES objects and reference values for the test.
setupTest(void)154 void FragmentShadingRateAttachment::setupTest(void)
155 {
156 m_program =
157 new glu::ShaderProgram(m_context.getRenderContext(), glu::makeVtxFragSources(genVS().c_str(), genFS().c_str()));
158
159 if (!m_program->isOk())
160 {
161 m_testCtx.getLog() << tcu::TestLog::Message << "" << tcu::TestLog::EndMessage
162 << tcu::TestLog::ShaderProgram(false, "")
163 << tcu::TestLog::Shader(QP_SHADER_TYPE_VERTEX,
164 m_program->getShaderInfo(glu::SHADERTYPE_VERTEX, 0).source, false,
165 m_program->getShaderInfo(glu::SHADERTYPE_VERTEX, 0).infoLog)
166
167 << tcu::TestLog::Shader(QP_SHADER_TYPE_FRAGMENT,
168 m_program->getShaderInfo(glu::SHADERTYPE_FRAGMENT, 0).source, false,
169 m_program->getShaderInfo(glu::SHADERTYPE_FRAGMENT, 0).infoLog)
170 << tcu::TestLog::EndShaderProgram;
171 TCU_FAIL("Shader creation failed");
172 }
173
174 const glw::Functions& gl = m_context.getRenderContext().getFunctions();
175
176 // Generate framebuffer objects
177 gl.genFramebuffers(1, &m_fbo_id);
178 GLU_EXPECT_NO_ERROR(gl.getError(), "Error setting up framebuffer objects");
179
180 gl.bindFramebuffer(GL_FRAMEBUFFER, m_fbo_id);
181 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding frame buffer object!");
182
183 // Generate a new texture name
184 gl.genTextures(1, &m_to_id);
185 GLU_EXPECT_NO_ERROR(gl.getError(), "Error generating texture objects");
186
187 if (m_tcParam.layerCount > 1)
188 {
189 // Allocate unsigned integer storage
190 gl.bindTexture(GL_TEXTURE_2D_ARRAY, m_to_id);
191 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding texture object!");
192
193 gl.texStorage3D(GL_TEXTURE_2D_ARRAY, 1, GL_RGBA32UI, m_tcParam.framebufferSize, m_tcParam.framebufferSize,
194 m_tcParam.layerCount);
195 GLU_EXPECT_NO_ERROR(gl.getError(), "Error allocating texture object!");
196 }
197 else
198 {
199 // Allocate unsigned integer storage
200 gl.bindTexture(GL_TEXTURE_2D, m_to_id);
201 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding texture object!");
202
203 gl.texStorage2D(GL_TEXTURE_2D, 1, GL_RGBA32UI, m_tcParam.framebufferSize, m_tcParam.framebufferSize);
204 GLU_EXPECT_NO_ERROR(gl.getError(), "Error allocating texture object!");
205 }
206
207 // Attach it to the framebuffer
208 if (m_tcParam.testKind == TestKind::MultiView)
209 {
210 gl.framebufferTextureMultiviewOVR(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_to_id, 0, 0,
211 m_tcParam.layerCount);
212 GLU_EXPECT_NO_ERROR(gl.getError(), "Error attaching texture to frame buffer");
213 }
214 else
215 {
216 gl.framebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_to_id, 0);
217 GLU_EXPECT_NO_ERROR(gl.getError(), "Error attaching texture to frame buffer");
218 }
219
220 // Generate a shading rate texture name
221 if (m_tcParam.attachmentShadingRate)
222 {
223 // generate shading rate texture
224 gl.getIntegerv(GL_MAX_FRAGMENT_SHADING_RATE_ATTACHMENT_TEXEL_WIDTH_EXT, &m_srTexelWidth);
225 GLU_EXPECT_NO_ERROR(gl.getError(),
226 "Error getIntegerv GL_MAX_FRAGMENT_SHADING_RATE_ATTACHMENT_TEXEL_WIDTH_EXT!");
227 gl.getIntegerv(GL_MAX_FRAGMENT_SHADING_RATE_ATTACHMENT_TEXEL_HEIGHT_EXT, &m_srTexelHeight);
228 GLU_EXPECT_NO_ERROR(gl.getError(),
229 "Error getIntegerv GL_MAX_FRAGMENT_SHADING_RATE_ATTACHMENT_TEXEL_HEIGHT_EXT!");
230
231 const deUint32 srWidth = (m_tcParam.framebufferSize + m_srTexelWidth - 1) / m_srTexelWidth;
232 const deUint32 srHeight = (m_tcParam.framebufferSize + m_srTexelHeight - 1) / m_srTexelHeight;
233
234 std::vector<deUint8> attachmentShadingRateData;
235 const deUint32 srLayerCount = m_tcParam.multiShadingRate ? 2 : 1;
236 attachmentShadingRateData.reserve(srWidth * srHeight * srLayerCount);
237 for (deUint32 srLayer = 0; srLayer < srLayerCount; srLayer++)
238 {
239 for (deUint32 y = 0; y < srHeight; y++)
240 {
241 for (deUint32 x = 0; x < srWidth; x++)
242 {
243 deUint8 packedShadingRate = static_cast<unsigned char>(
244 fsrutils::packShadingRate(translateCoordsToShadingRate(srLayer, x, y)));
245 attachmentShadingRateData.push_back(packedShadingRate);
246 }
247 }
248 }
249
250 gl.genTextures(1, &m_sr_to_id);
251 GLU_EXPECT_NO_ERROR(gl.getError(), "Error generating texture objects");
252 gl.pixelStorei(GL_UNPACK_ALIGNMENT, 1);
253 GLU_EXPECT_NO_ERROR(gl.getError(), "Error set pixelStorei for unpack alignment");
254
255 if (m_tcParam.multiShadingRate)
256 {
257 DE_ASSERT(m_tcParam.layerCount > 1);
258 // Allocate unsigned integer storage
259 gl.bindTexture(GL_TEXTURE_2D_ARRAY, m_sr_to_id);
260 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding texture object!");
261
262 gl.texStorage3D(GL_TEXTURE_2D_ARRAY, 1, GL_R8UI, srWidth, srHeight, m_tcParam.layerCount);
263 GLU_EXPECT_NO_ERROR(gl.getError(), "Error allocating texture object!");
264
265 gl.texSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, 0, srWidth, srHeight, m_tcParam.layerCount, GL_RED_INTEGER,
266 GL_UNSIGNED_BYTE, attachmentShadingRateData.data());
267 GLU_EXPECT_NO_ERROR(gl.getError(), "Error updating shading rate data to texture");
268
269 // Attach it to the framebuffer
270 gl.framebufferShadingRateEXT(GL_FRAMEBUFFER, GL_SHADING_RATE_ATTACHMENT_EXT, m_sr_to_id, 0,
271 m_tcParam.layerCount, m_srTexelWidth, m_srTexelHeight);
272 GLU_EXPECT_NO_ERROR(gl.getError(), "Error framebufferShadingRate");
273 }
274 else
275 {
276 // Allocate unsigned integer storage
277 gl.bindTexture(GL_TEXTURE_2D, m_sr_to_id);
278 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding texture object!");
279
280 gl.texStorage2D(GL_TEXTURE_2D, 1, GL_R8UI, srWidth, srHeight);
281 GLU_EXPECT_NO_ERROR(gl.getError(), "Error allocating texture object!");
282
283 gl.texSubImage2D(GL_TEXTURE_2D, 0, 0, 0, srWidth, srHeight, GL_RED_INTEGER, GL_UNSIGNED_BYTE,
284 attachmentShadingRateData.data());
285 GLU_EXPECT_NO_ERROR(gl.getError(), "Error updating shading rate data to texture");
286
287 // Attach it to the framebuffer
288 gl.framebufferShadingRateEXT(GL_FRAMEBUFFER, GL_SHADING_RATE_ATTACHMENT_EXT, m_sr_to_id, 0, 1,
289 m_srTexelWidth, m_srTexelHeight);
290 GLU_EXPECT_NO_ERROR(gl.getError(), "Error framebufferShadingRate");
291 }
292 }
293
294 constexpr deUint32 kVerticesCount = (TRIANGLE_COUNT * 3 * 2);
295 std::vector<float> randomVertices;
296 randomVertices.reserve(kVerticesCount);
297
298 // 1st draw triangle is huge to fill all rect.
299 randomVertices.push_back(-3.0);
300 randomVertices.push_back(-3.0);
301 randomVertices.push_back(-3.0);
302 randomVertices.push_back(3.0);
303 randomVertices.push_back(3.0);
304 randomVertices.push_back(-3.0);
305
306 deRandom rnd;
307 deRandom_init(&rnd, 0);
308 for (deUint32 i = 0; i < kVerticesCount; i++)
309 {
310 randomVertices.push_back((deRandom_getFloat(&rnd) * 2.0f - 1.0f));
311 }
312
313 gl.genBuffers(1, &m_vbo_id);
314 GLU_EXPECT_NO_ERROR(gl.getError(), "Error generate buffer objects");
315
316 gl.bindBuffer(GL_ARRAY_BUFFER, m_vbo_id);
317 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding buffer objects");
318
319 gl.bufferData(GL_ARRAY_BUFFER, randomVertices.size() * sizeof(float), randomVertices.data(), GL_STATIC_DRAW);
320 GLU_EXPECT_NO_ERROR(gl.getError(), "Error uploading buffer data");
321
322 if (m_tcParam.testKind == TestKind::Scissor)
323 {
324 m_scissorBox = { m_tcParam.framebufferSize / 3, m_tcParam.framebufferSize / 3, m_tcParam.framebufferSize / 3,
325 m_tcParam.framebufferSize / 3 };
326 }
327 }
328
329 /// Executes the test.
330 /// Sets the test result to QP_TEST_RESULT_FAIL if the test failed, QP_TEST_RESULT_PASS otherwise.
331 /// Note the function throws exception should an error occur!
332 ///
333 /// @return STOP if the test has finished, CONTINUE to indicate iterate should be called once again.
334 ///
iterate(void)335 tcu::TestNode::IterateResult FragmentShadingRateAttachment::iterate(void)
336 {
337 const glw::Functions& gl = m_context.getRenderContext().getFunctions();
338
339 // Initialization
340 constexpr deUint32 kMaxRateCount =
341 16; // SHADING_RATE_1X1_PIXELS_EXT ~ SHADING_RATE_4X4_PIXELS_EXT, actually 9 is enough
342 glw::GLenum shadingRates[kMaxRateCount];
343 glw::GLsizei count = 0;
344
345 gl.getFragmentShadingRatesEXT(1, kMaxRateCount, &count, shadingRates);
346 GLU_EXPECT_NO_ERROR(gl.getError(), "Error to get shading rate getFragmentShadingRatesEXT");
347 DE_ASSERT(count > 0);
348
349 for (glw::GLsizei i = 0; i < count; i++)
350 {
351 m_availableShadingRates.push_back(shadingRates[i]);
352 }
353
354 setupTest();
355
356 gl.disable(GL_DEPTH_TEST);
357
358 gl.shadingRateEXT(GL_SHADING_RATE_1X1_PIXELS_EXT);
359 GLU_EXPECT_NO_ERROR(gl.getError(), "Error to set shadingRateEXT as default");
360
361 gl.clearColor(0.0f, 0.0f, 0.0f, 0.0f);
362 GLU_EXPECT_NO_ERROR(gl.getError(), "Error clear Color");
363
364 gl.clear(GL_COLOR_BUFFER_BIT);
365 GLU_EXPECT_NO_ERROR(gl.getError(), "Error clear");
366
367 gl.useProgram(m_program->getProgram());
368 GLU_EXPECT_NO_ERROR(gl.getError(), "Error use program");
369
370 gl.bindBuffer(GL_ARRAY_BUFFER, m_vbo_id);
371 GLU_EXPECT_NO_ERROR(gl.getError(), "Error bind buffer vertex data");
372
373 gl.enableVertexAttribArray(0);
374 GLU_EXPECT_NO_ERROR(gl.getError(), "Error enabling vertex attrib pointer 0");
375
376 gl.vertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 2, nullptr);
377 GLU_EXPECT_NO_ERROR(gl.getError(), "Error binding vertex attrib pointer 0");
378
379 if (m_tcParam.attachmentShadingRate)
380 {
381 gl.shadingRateCombinerOpsEXT(GL_FRAGMENT_SHADING_RATE_COMBINER_OP_KEEP_EXT,
382 GL_FRAGMENT_SHADING_RATE_COMBINER_OP_REPLACE_EXT);
383 }
384 else
385 {
386 gl.shadingRateCombinerOpsEXT(GL_FRAGMENT_SHADING_RATE_COMBINER_OP_KEEP_EXT,
387 GL_FRAGMENT_SHADING_RATE_COMBINER_OP_KEEP_EXT);
388 }
389
390 if (m_tcParam.testKind == TestKind::Scissor)
391 {
392 gl.scissor(m_scissorBox.x, m_scissorBox.y, m_scissorBox.width, m_scissorBox.height);
393 gl.enable(GL_SCISSOR_TEST);
394 }
395
396 // draw ID start from 1
397 for (deUint32 drawID = 1; drawID < TRIANGLE_COUNT; drawID++)
398 {
399 gl.uniform1i(gl.getUniformLocation(m_program->getProgram(), "drawID"), drawID);
400 GLU_EXPECT_NO_ERROR(gl.getError(), "Error set uniform drawID value");
401
402 if (!m_tcParam.attachmentShadingRate)
403 {
404 gl.shadingRateEXT(translateDrawIDToShadingRate(drawID));
405 GLU_EXPECT_NO_ERROR(gl.getError(), "Error set shading rate");
406 }
407
408 const deUint32 startVertex = (drawID - 1) * 2; // to use first vertices "-1" because drawID start from 1
409 gl.drawArrays(GL_TRIANGLES, startVertex, 3);
410 GLU_EXPECT_NO_ERROR(gl.getError(), "Error draw a triangle");
411 }
412
413 for (uint32_t layer = 0; layer < m_tcParam.layerCount; layer++)
414 {
415 if (m_tcParam.layerCount > 1)
416 {
417 gl.framebufferTextureLayer(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_to_id, 0, layer);
418 }
419 const deUint32 dataSize = m_tcParam.framebufferSize * m_tcParam.framebufferSize * 4;
420 std::vector<deUint32> resultData(dataSize);
421 gl.readPixels(0, 0, m_tcParam.framebufferSize, m_tcParam.framebufferSize, GL_RGBA_INTEGER, GL_UNSIGNED_INT,
422 resultData.data());
423 GLU_EXPECT_NO_ERROR(gl.getError(), "Error reading pixels from frame buffer!");
424
425 for (deUint32 y = 0; y < m_tcParam.framebufferSize; y++)
426 {
427 for (deUint32 x = 0; x < m_tcParam.framebufferSize; x++)
428 {
429 const deUint32* sample = &resultData[((y * m_tcParam.framebufferSize) + x) * 4];
430
431 if (m_tcParam.testKind == TestKind::Scissor)
432 {
433 if (!m_scissorBox.in(x, y)) // out of scissor box
434 {
435 if (sample[1] != 0) // should be cleared to 0
436 {
437 std::stringstream error_sstream;
438 error_sstream << "out of scissor box should be 0"
439 << "scissor: " << m_scissorBox.x << " " << m_scissorBox.width << " "
440 << m_scissorBox.y << " " << m_scissorBox.height;
441 }
442 else
443 {
444 // success. outside scissor is always 0
445 continue;
446 }
447 }
448 else
449 {
450 if (sample[1] == 0) // if it is cleared to 0, error. All cleared by 1st big triangle
451 {
452 std::stringstream error_sstream;
453 error_sstream << "inside of scissor box should not be 0"
454 << "scissor: " << m_scissorBox.x << " " << m_scissorBox.width << " "
455 << m_scissorBox.y << " " << m_scissorBox.height;
456 }
457 }
458 }
459 else if (sample[1] == 0) // nothing rendered for the other case except scissor test
460 {
461 continue;
462 }
463
464 const deUint32 shadingRate = sample[0];
465 const deUint32 drawID = sample[1];
466
467 deUint32 expectedShadingRate = 0;
468 if (m_tcParam.attachmentShadingRate)
469 {
470 deUint32 srLayer = m_tcParam.multiShadingRate ? layer : 0;
471 expectedShadingRate = fsrutils::packShadingRate(
472 translateCoordsToShadingRate(srLayer, x / m_srTexelWidth, y / m_srTexelHeight));
473 }
474 else
475 {
476 expectedShadingRate = fsrutils::packShadingRate(translateDrawIDToShadingRate(drawID));
477 }
478
479 if (expectedShadingRate != shadingRate)
480 {
481 std::stringstream error_sstream;
482
483 error_sstream << "The draw ID is " << drawID << "Shading Rate is" << shadingRate
484 << ", But we expect " << expectedShadingRate;
485
486 m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, error_sstream.str().c_str());
487
488 return STOP;
489 }
490 }
491 }
492 }
493
494 // All done
495 if (m_testCtx.getTestResult() != QP_TEST_RESULT_FAIL)
496 {
497 m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
498 }
499
500 return STOP;
501 }
502
503 /// Translate draw ID to ShadingRate enumeration
504 ///
505 /// @param drawID draw ID to translate shading rate
506 ///
507 /// @return shading rate enumeration
translateDrawIDToShadingRate(deUint32 drawID) const508 glw::GLenum FragmentShadingRateAttachment::translateDrawIDToShadingRate(deUint32 drawID) const
509 {
510 return m_availableShadingRates[drawID % m_availableShadingRates.size()];
511 }
512
513 /// translate draw ID to View ID
514 ///
515 /// @param drawID ID to translate to View ID
516 ///
517 /// @return translated ViewID
drawIDToViewID(deUint32 drawID) const518 deUint32 FragmentShadingRateAttachment::drawIDToViewID(deUint32 drawID) const
519 {
520 return drawID & 1;
521 }
522
523 /// Translate Coordinates ID to ShadingRate enumeration
524 ///
525 ///@param srLayer shading rate layer index
526 ///@param srx x coord in the shading rate attachment to translate shading rate
527 ///@param sry y coord in the shading rate attachment to translate shading rate
528 ///
529 ///@return shading rate enumeration
translateCoordsToShadingRate(deUint32 srLayer,deUint32 srx,deUint32 sry) const530 glw::GLenum FragmentShadingRateAttachment::translateCoordsToShadingRate(deUint32 srLayer, deUint32 srx,
531 deUint32 sry) const
532 {
533 DE_ASSERT(m_tcParam.multiShadingRate || srLayer == 0);
534 return m_availableShadingRates[(srLayer + srx + sry) % m_availableShadingRates.size()];
535 }
536
537 } // namespace glcts
538