1 /*------------------------------------------------------------------------
2 * Vulkan Conformance Tests
3 * ------------------------
4 *
5 * Copyright (c) 2014 The Android Open Source Project
6 * Copyright (c) 2016 The Khronos Group Inc.
7 *
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 *
20 *//*!
21 * \file
22 * \brief Tessellation Shader Input/Output Tests
23 *//*--------------------------------------------------------------------*/
24
25 #include "vktTessellationShaderInputOutputTests.hpp"
26 #include "vktTestCaseUtil.hpp"
27 #include "vktTessellationUtil.hpp"
28
29 #include "tcuTestLog.hpp"
30 #include "tcuImageIO.hpp"
31 #include "tcuTexture.hpp"
32 #include "tcuImageCompare.hpp"
33
34 #include "vkDefs.hpp"
35 #include "vkBarrierUtil.hpp"
36 #include "vkQueryUtil.hpp"
37 #include "vkBuilderUtil.hpp"
38 #include "vkImageUtil.hpp"
39 #include "vkTypeUtil.hpp"
40 #include "vkStrUtil.hpp"
41 #include "vkCmdUtil.hpp"
42 #include "vkObjUtil.hpp"
43
44 #include "deUniquePtr.hpp"
45 #include "deStringUtil.hpp"
46
47 #include <string>
48 #include <vector>
49
50 namespace vkt
51 {
52 namespace tessellation
53 {
54
55 using namespace vk;
56
57 namespace
58 {
59
60 enum Constants
61 {
62 RENDER_SIZE = 256,
63 };
64
65 //! Generic test code used by all test cases.
runTest(Context & context,const int numPrimitives,const int inPatchSize,const int outPatchSize,const VkFormat vertexFormat,const void * vertexData,const VkDeviceSize vertexDataSizeBytes,const tcu::ConstPixelBufferAccess & referenceImageAccess)66 tcu::TestStatus runTest (Context& context,
67 const int numPrimitives,
68 const int inPatchSize,
69 const int outPatchSize,
70 const VkFormat vertexFormat,
71 const void* vertexData,
72 const VkDeviceSize vertexDataSizeBytes,
73 const tcu::ConstPixelBufferAccess& referenceImageAccess)
74 {
75 requireFeatures(context.getInstanceInterface(), context.getPhysicalDevice(), FEATURE_TESSELLATION_SHADER);
76
77 const DeviceInterface& vk = context.getDeviceInterface();
78 const VkDevice device = context.getDevice();
79 const VkQueue queue = context.getUniversalQueue();
80 const deUint32 queueFamilyIndex = context.getUniversalQueueFamilyIndex();
81 Allocator& allocator = context.getDefaultAllocator();
82
83 // Vertex input: may be just some abstract numbers
84
85 const Buffer vertexBuffer(vk, device, allocator,
86 makeBufferCreateInfo(vertexDataSizeBytes, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT), MemoryRequirement::HostVisible);
87
88 {
89 const Allocation& alloc = vertexBuffer.getAllocation();
90
91 deMemcpy(alloc.getHostPtr(), vertexData, static_cast<std::size_t>(vertexDataSizeBytes));
92 flushAlloc(vk, device, alloc);
93 // No barrier needed, flushed memory is automatically visible
94 }
95
96 // Color attachment
97
98 const tcu::IVec2 renderSize = tcu::IVec2(RENDER_SIZE, RENDER_SIZE);
99 const VkFormat colorFormat = VK_FORMAT_R8G8B8A8_UNORM;
100 const VkImageSubresourceRange colorImageSubresourceRange = makeImageSubresourceRange(VK_IMAGE_ASPECT_COLOR_BIT, 0u, 1u, 0u, 1u);
101 const Image colorAttachmentImage (vk, device, allocator,
102 makeImageCreateInfo(renderSize, colorFormat, VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT, 1u),
103 MemoryRequirement::Any);
104
105 // Color output buffer: image will be copied here for verification
106
107 const VkDeviceSize colorBufferSizeBytes = renderSize.x()*renderSize.y() * tcu::getPixelSize(mapVkFormat(colorFormat));
108 const Buffer colorBuffer (vk, device, allocator, makeBufferCreateInfo(colorBufferSizeBytes, VK_BUFFER_USAGE_TRANSFER_DST_BIT), MemoryRequirement::HostVisible);
109
110 // Pipeline
111
112 const Unique<VkImageView> colorAttachmentView (makeImageView (vk, device, *colorAttachmentImage, VK_IMAGE_VIEW_TYPE_2D, colorFormat, colorImageSubresourceRange));
113 const Unique<VkRenderPass> renderPass (makeRenderPass (vk, device, colorFormat));
114 const Unique<VkFramebuffer> framebuffer (makeFramebuffer (vk, device, *renderPass, *colorAttachmentView, renderSize.x(), renderSize.y()));
115 const Unique<VkPipelineLayout> pipelineLayout (makePipelineLayout (vk, device));
116 const Unique<VkCommandPool> cmdPool (makeCommandPool (vk, device, queueFamilyIndex));
117 const Unique<VkCommandBuffer> cmdBuffer (allocateCommandBuffer (vk, device, *cmdPool, VK_COMMAND_BUFFER_LEVEL_PRIMARY));
118
119 const Unique<VkPipeline> pipeline(GraphicsPipelineBuilder()
120 .setRenderSize (renderSize)
121 .setVertexInputSingleAttribute(vertexFormat, tcu::getPixelSize(mapVkFormat(vertexFormat)))
122 .setPatchControlPoints (inPatchSize)
123 .setShader (vk, device, VK_SHADER_STAGE_VERTEX_BIT, context.getBinaryCollection().get("vert"), DE_NULL)
124 .setShader (vk, device, VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT, context.getBinaryCollection().get("tesc"), DE_NULL)
125 .setShader (vk, device, VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT, context.getBinaryCollection().get("tese"), DE_NULL)
126 .setShader (vk, device, VK_SHADER_STAGE_FRAGMENT_BIT, context.getBinaryCollection().get("frag"), DE_NULL)
127 .build (vk, device, *pipelineLayout, *renderPass));
128
129 {
130 tcu::TestLog& log = context.getTestContext().getLog();
131 log << tcu::TestLog::Message
132 << "Note: input patch size is " << inPatchSize << ", output patch size is " << outPatchSize
133 << tcu::TestLog::EndMessage;
134 }
135
136 // Draw commands
137
138 beginCommandBuffer(vk, *cmdBuffer);
139
140 // Change color attachment image layout
141 {
142 const VkImageMemoryBarrier colorAttachmentLayoutBarrier = makeImageMemoryBarrier(
143 (VkAccessFlags)0, VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
144 VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
145 *colorAttachmentImage, colorImageSubresourceRange);
146
147 vk.cmdPipelineBarrier(*cmdBuffer, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, 0u,
148 0u, DE_NULL, 0u, DE_NULL, 1u, &colorAttachmentLayoutBarrier);
149 }
150
151 // Begin render pass
152 {
153 const VkRect2D renderArea = makeRect2D(renderSize);
154 const tcu::Vec4 clearColor (0.0f, 0.0f, 0.0f, 1.0f);
155
156 beginRenderPass(vk, *cmdBuffer, *renderPass, *framebuffer, renderArea, clearColor);
157 }
158
159 vk.cmdBindPipeline(*cmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, *pipeline);
160 {
161 const VkDeviceSize vertexBufferOffset = 0ull;
162 vk.cmdBindVertexBuffers(*cmdBuffer, 0u, 1u, &vertexBuffer.get(), &vertexBufferOffset);
163 }
164
165 // Process enough vertices to make a patch.
166 vk.cmdDraw(*cmdBuffer, numPrimitives * inPatchSize, 1u, 0u, 0u);
167 endRenderPass(vk, *cmdBuffer);
168
169 // Copy render result to a host-visible buffer
170 copyImageToBuffer(vk, *cmdBuffer, *colorAttachmentImage, *colorBuffer, renderSize);
171
172 endCommandBuffer(vk, *cmdBuffer);
173 submitCommandsAndWait(vk, device, queue, *cmdBuffer);
174
175 {
176 const Allocation& colorBufferAlloc = colorBuffer.getAllocation();
177
178 invalidateAlloc(vk, device, colorBufferAlloc);
179
180 // Verify case result
181 const tcu::ConstPixelBufferAccess resultImageAccess (mapVkFormat(colorFormat), renderSize.x(), renderSize.y(), 1, colorBufferAlloc.getHostPtr());
182 tcu::TestLog& log = context.getTestContext().getLog();
183 const bool ok = tcu::fuzzyCompare(log, "ImageComparison", "Image Comparison", referenceImageAccess, resultImageAccess,
184 0.002f, tcu::COMPARE_LOG_RESULT);
185
186 return (ok ? tcu::TestStatus::pass("OK") : tcu::TestStatus::fail("Failure"));
187 }
188 }
189
190 //! Resize an image and fill with white color.
initializeWhiteReferenceImage(tcu::TextureLevel & image,const int width,const int height)191 void initializeWhiteReferenceImage (tcu::TextureLevel& image, const int width, const int height)
192 {
193 DE_ASSERT(width > 0 && height > 0);
194
195 image.setStorage(mapVkFormat(VK_FORMAT_R8G8B8A8_UNORM), width, height);
196 tcu::PixelBufferAccess access = image.getAccess();
197
198 const tcu::Vec4 white(1.0f, 1.0f, 1.0f, 1.0f);
199
200 for (int y = 0; y < height; ++y)
201 for (int x = 0; x < width; ++x)
202 access.setPixel(white, x, y);
203 }
204
205 namespace PatchVertexCount
206 {
207
208 struct CaseDefinition
209 {
210 int inPatchSize;
211 int outPatchSize;
212 std::string referenceImagePath;
213 };
214
initPrograms(vk::SourceCollections & programCollection,const CaseDefinition caseDef)215 void initPrograms (vk::SourceCollections& programCollection, const CaseDefinition caseDef)
216 {
217 // Vertex shader
218 {
219 std::ostringstream src;
220 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
221 << "\n"
222 << "layout(location = 0) in highp float in_v_attr;\n"
223 << "layout(location = 0) out highp float in_tc_attr;\n"
224 << "\n"
225 << "void main (void)\n"
226 << "{\n"
227 << " in_tc_attr = in_v_attr;\n"
228 << "}\n";
229
230 programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
231 }
232
233 // Tessellation control shader
234 {
235 std::ostringstream src;
236 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
237 << "#extension GL_EXT_tessellation_shader : require\n"
238 << "\n"
239 << "layout(vertices = " << caseDef.outPatchSize << ") out;\n"
240 << "\n"
241 << "layout(location = 0) in highp float in_tc_attr[];\n"
242 << "layout(location = 0) out highp float in_te_attr[];\n"
243 << "\n"
244 << "void main (void)\n"
245 << "{\n"
246 << " in_te_attr[gl_InvocationID] = in_tc_attr[gl_InvocationID*" << caseDef.inPatchSize << "/" << caseDef.outPatchSize << "];\n"
247 << "\n"
248 << " gl_TessLevelInner[0] = 5.0;\n"
249 << " gl_TessLevelInner[1] = 5.0;\n"
250 << "\n"
251 << " gl_TessLevelOuter[0] = 5.0;\n"
252 << " gl_TessLevelOuter[1] = 5.0;\n"
253 << " gl_TessLevelOuter[2] = 5.0;\n"
254 << " gl_TessLevelOuter[3] = 5.0;\n"
255 << "}\n";
256
257 programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
258 }
259
260 // Tessellation evaluation shader
261 {
262 std::ostringstream src;
263 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
264 << "#extension GL_EXT_tessellation_shader : require\n"
265 << "\n"
266 << "layout(" << getTessPrimitiveTypeShaderName(TESSPRIMITIVETYPE_QUADS) << ") in;\n"
267 << "\n"
268 << "layout(location = 0) in highp float in_te_attr[];\n"
269 << "layout(location = 0) out mediump vec4 in_f_color;\n"
270 << "\n"
271 << "void main (void)\n"
272 << "{\n"
273 << " highp float x = gl_TessCoord.x*2.0 - 1.0;\n"
274 << " highp float y = gl_TessCoord.y - in_te_attr[int(round(gl_TessCoord.x*float(" << caseDef.outPatchSize << "-1)))];\n"
275 << " gl_Position = vec4(x, y, 0.0, 1.0);\n"
276 << " in_f_color = vec4(1.0);\n"
277 << "}\n";
278
279 programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
280 }
281
282 // Fragment shader
283 {
284 std::ostringstream src;
285 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
286 << "\n"
287 << "layout(location = 0) in mediump vec4 in_f_color;\n"
288 << "layout(location = 0) out mediump vec4 o_color;\n"
289 << "\n"
290 << "void main (void)\n"
291 << "{\n"
292 << " o_color = in_f_color;\n"
293 << "}\n";
294
295 programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
296 }
297 }
298
test(Context & context,const CaseDefinition caseDef)299 tcu::TestStatus test (Context& context, const CaseDefinition caseDef)
300 {
301 // Input vertex attribute data
302 std::vector<float> vertexData;
303 vertexData.reserve(caseDef.inPatchSize);
304 for (int i = 0; i < caseDef.inPatchSize; ++i)
305 {
306 const float f = static_cast<float>(i) / static_cast<float>(caseDef.inPatchSize - 1);
307 vertexData.push_back(f*f);
308 }
309 const VkDeviceSize vertexBufferSize = sizeof(float) * vertexData.size();
310
311 // Load reference image
312 tcu::TextureLevel referenceImage;
313 tcu::ImageIO::loadPNG(referenceImage, context.getTestContext().getArchive(), caseDef.referenceImagePath.c_str());
314
315 const int numPrimitives = 1;
316
317 return runTest(context, numPrimitives, caseDef.inPatchSize, caseDef.outPatchSize,
318 VK_FORMAT_R32_SFLOAT, &vertexData[0], vertexBufferSize, referenceImage.getAccess());
319 }
320
321 } // PatchVertexCountTest ns
322
323 namespace PerPatchData
324 {
325
326 enum CaseType
327 {
328 CASETYPE_PRIMITIVE_ID_TCS,
329 CASETYPE_PRIMITIVE_ID_TES,
330 CASETYPE_PATCH_VERTICES_IN_TCS,
331 CASETYPE_PATCH_VERTICES_IN_TES,
332 CASETYPE_TESS_LEVEL_INNER0_TES,
333 CASETYPE_TESS_LEVEL_INNER1_TES,
334 CASETYPE_TESS_LEVEL_OUTER0_TES,
335 CASETYPE_TESS_LEVEL_OUTER1_TES,
336 CASETYPE_TESS_LEVEL_OUTER2_TES,
337 CASETYPE_TESS_LEVEL_OUTER3_TES,
338 };
339
340 enum Constants
341 {
342 OUTPUT_PATCH_SIZE = 5,
343 INPUT_PATCH_SIZE = 10,
344 };
345
346 struct CaseDefinition
347 {
348 CaseType caseType;
349 std::string caseName;
350 bool usesReferenceImageFromFile;
351 std::string referenceImagePath;
352 std::string caseDescription;
353 };
354
getNumPrimitives(const CaseType type)355 int getNumPrimitives (const CaseType type)
356 {
357 return (type == CASETYPE_PRIMITIVE_ID_TCS || type == CASETYPE_PRIMITIVE_ID_TES ? 8 : 1);
358 }
359
initPrograms(vk::SourceCollections & programCollection,const CaseDefinition caseDef)360 void initPrograms (vk::SourceCollections& programCollection, const CaseDefinition caseDef)
361 {
362 // Vertex shader
363 {
364 std::ostringstream src;
365 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
366 << "\n"
367 << "layout(location = 0) in highp float in_v_attr;\n"
368 << "layout(location = 0) out highp float in_tc_attr;\n"
369 << "\n"
370 << "void main (void)\n"
371 << "{\n"
372 << " in_tc_attr = in_v_attr;\n"
373 << "}\n";
374
375 programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
376 }
377
378 // Tessellation control shader
379 {
380 std::ostringstream src;
381 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
382 << "#extension GL_EXT_tessellation_shader : require\n"
383 << "\n"
384 << "layout(vertices = " << OUTPUT_PATCH_SIZE << ") out;\n"
385 << "\n"
386 << "layout(location = 0) in highp float in_tc_attr[];\n"
387 << "layout(location = 0) out highp float in_te_attr[];\n"
388 << "\n"
389 << (caseDef.caseType == CASETYPE_PRIMITIVE_ID_TCS ? "layout(location = 1) patch out mediump int in_te_primitiveIDFromTCS;\n" :
390 caseDef.caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? "layout(location = 1) patch out mediump int in_te_patchVerticesInFromTCS;\n" : "")
391 << "\n"
392 << "void main (void)\n"
393 << "{\n"
394 << " in_te_attr[gl_InvocationID] = in_tc_attr[gl_InvocationID];\n"
395 << (caseDef.caseType == CASETYPE_PRIMITIVE_ID_TCS ? " in_te_primitiveIDFromTCS = gl_PrimitiveID;\n" :
396 caseDef.caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? " in_te_patchVerticesInFromTCS = gl_PatchVerticesIn;\n" : "")
397 << "\n"
398 << " gl_TessLevelInner[0] = 9.0;\n"
399 << " gl_TessLevelInner[1] = 8.0;\n"
400 << "\n"
401 << " gl_TessLevelOuter[0] = 7.0;\n"
402 << " gl_TessLevelOuter[1] = 6.0;\n"
403 << " gl_TessLevelOuter[2] = 5.0;\n"
404 << " gl_TessLevelOuter[3] = 4.0;\n"
405 << "}\n";
406
407 programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
408 }
409
410 // Tessellation evaluation shader
411 {
412 const float xScale = 1.0f / static_cast<float>(getNumPrimitives(caseDef.caseType));
413
414 std::ostringstream src;
415 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
416 << "#extension GL_EXT_tessellation_shader : require\n"
417 << "\n"
418 << "layout(" << getTessPrimitiveTypeShaderName(TESSPRIMITIVETYPE_QUADS) << ") in;\n"
419 << "\n"
420 << "layout(location = 0) in highp float in_te_attr[];\n"
421 << "layout(location = 0) out mediump vec4 in_f_color;\n"
422 << "\n"
423 << (caseDef.caseType == CASETYPE_PRIMITIVE_ID_TCS ? "layout(location = 1) patch in mediump int in_te_primitiveIDFromTCS;\n" :
424 caseDef.caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? "layout(location = 1) patch in mediump int in_te_patchVerticesInFromTCS;\n" : "")
425 << "\n"
426 << "void main (void)\n"
427 << "{\n"
428 << " highp float x = (gl_TessCoord.x*float(" << xScale << ") + in_te_attr[0]) * 2.0 - 1.0;\n"
429 << " highp float y = gl_TessCoord.y*2.0 - 1.0;\n"
430 << " gl_Position = vec4(x, y, 0.0, 1.0);\n"
431 << (caseDef.caseType == CASETYPE_PRIMITIVE_ID_TCS ? " bool ok = in_te_primitiveIDFromTCS == 3;\n" :
432 caseDef.caseType == CASETYPE_PRIMITIVE_ID_TES ? " bool ok = gl_PrimitiveID == 3;\n" :
433 caseDef.caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? " bool ok = in_te_patchVerticesInFromTCS == " + de::toString(INPUT_PATCH_SIZE) + ";\n" :
434 caseDef.caseType == CASETYPE_PATCH_VERTICES_IN_TES ? " bool ok = gl_PatchVerticesIn == " + de::toString(OUTPUT_PATCH_SIZE) + ";\n" :
435 caseDef.caseType == CASETYPE_TESS_LEVEL_INNER0_TES ? " bool ok = abs(gl_TessLevelInner[0] - 9.0) < 0.1f;\n" :
436 caseDef.caseType == CASETYPE_TESS_LEVEL_INNER1_TES ? " bool ok = abs(gl_TessLevelInner[1] - 8.0) < 0.1f;\n" :
437 caseDef.caseType == CASETYPE_TESS_LEVEL_OUTER0_TES ? " bool ok = abs(gl_TessLevelOuter[0] - 7.0) < 0.1f;\n" :
438 caseDef.caseType == CASETYPE_TESS_LEVEL_OUTER1_TES ? " bool ok = abs(gl_TessLevelOuter[1] - 6.0) < 0.1f;\n" :
439 caseDef.caseType == CASETYPE_TESS_LEVEL_OUTER2_TES ? " bool ok = abs(gl_TessLevelOuter[2] - 5.0) < 0.1f;\n" :
440 caseDef.caseType == CASETYPE_TESS_LEVEL_OUTER3_TES ? " bool ok = abs(gl_TessLevelOuter[3] - 4.0) < 0.1f;\n" : "")
441 << " in_f_color = ok ? vec4(1.0) : vec4(vec3(0.0), 1.0);\n"
442 << "}\n";
443
444 programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
445 }
446
447 // Fragment shader
448 {
449 std::ostringstream src;
450 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
451 << "\n"
452 << "layout(location = 0) in mediump vec4 in_f_color;\n"
453 << "layout(location = 0) out mediump vec4 o_color;\n"
454 << "\n"
455 << "void main (void)\n"
456 << "{\n"
457 << " o_color = in_f_color;\n"
458 << "}\n";
459
460 programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
461 }
462 }
463
test(Context & context,const CaseDefinition caseDef)464 tcu::TestStatus test (Context& context, const CaseDefinition caseDef)
465 {
466 DE_ASSERT(!caseDef.usesReferenceImageFromFile || !caseDef.referenceImagePath.empty());
467
468 // Input vertex attribute data
469 const int numPrimitives = getNumPrimitives(caseDef.caseType);
470 std::vector<float> vertexData (INPUT_PATCH_SIZE * numPrimitives, 0.0f);
471 const VkDeviceSize vertexBufferSize = sizeof(float) * vertexData.size();
472
473 for (int i = 0; i < numPrimitives; ++i)
474 vertexData[INPUT_PATCH_SIZE * i] = static_cast<float>(i) / static_cast<float>(numPrimitives);
475
476 tcu::TextureLevel referenceImage;
477 if (caseDef.usesReferenceImageFromFile)
478 tcu::ImageIO::loadPNG(referenceImage, context.getTestContext().getArchive(), caseDef.referenceImagePath.c_str());
479 else
480 initializeWhiteReferenceImage(referenceImage, RENDER_SIZE, RENDER_SIZE);
481
482 return runTest(context, numPrimitives, INPUT_PATCH_SIZE, OUTPUT_PATCH_SIZE,
483 VK_FORMAT_R32_SFLOAT, &vertexData[0], vertexBufferSize, referenceImage.getAccess());
484 }
485
486 } // PerPatchData ns
487
488 namespace GLPosition
489 {
490
491 enum CaseType
492 {
493 CASETYPE_VS_TO_TCS = 0,
494 CASETYPE_TCS_TO_TES,
495 CASETYPE_VS_TO_TCS_TO_TES,
496 };
497
initPrograms(vk::SourceCollections & programCollection,const CaseType caseType)498 void initPrograms (vk::SourceCollections& programCollection, const CaseType caseType)
499 {
500 const bool vsToTCS = caseType == CASETYPE_VS_TO_TCS || caseType == CASETYPE_VS_TO_TCS_TO_TES;
501 const bool tcsToTES = caseType == CASETYPE_TCS_TO_TES || caseType == CASETYPE_VS_TO_TCS_TO_TES;
502
503 // Vertex shader
504 {
505 std::ostringstream src;
506 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
507 << "\n"
508 << "layout(location = 0) in highp vec4 in_v_attr;\n"
509 << (!vsToTCS ? "layout(location = 0) out highp vec4 in_tc_attr;\n" : "")
510 << "\n"
511 << "void main (void)\n"
512 << "{\n"
513 << " " << (vsToTCS ? "gl_Position" : "in_tc_attr") << " = in_v_attr;\n"
514 << "}\n";
515
516 programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
517 }
518
519 // Tessellation control shader
520 {
521 std::ostringstream src;
522 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
523 << "#extension GL_EXT_tessellation_shader : require\n"
524 << "\n"
525 << "layout(vertices = 3) out;\n"
526 << "\n"
527 << (!vsToTCS ? "layout(location = 0) in highp vec4 in_tc_attr[];\n" : "")
528 << (!tcsToTES ? "layout(location = 0) out highp vec4 in_te_attr[];\n" : "")
529 << "\n"
530 << "void main (void)\n"
531 << "{\n"
532 << " " << (tcsToTES ? "gl_out[gl_InvocationID].gl_Position" : "in_te_attr[gl_InvocationID]") << " = "
533 << (vsToTCS ? "gl_in[gl_InvocationID].gl_Position" : "in_tc_attr[gl_InvocationID]") << ";\n"
534 << "\n"
535 << " gl_TessLevelInner[0] = 2.0;\n"
536 << " gl_TessLevelInner[1] = 3.0;\n"
537 << "\n"
538 << " gl_TessLevelOuter[0] = 4.0;\n"
539 << " gl_TessLevelOuter[1] = 5.0;\n"
540 << " gl_TessLevelOuter[2] = 6.0;\n"
541 << " gl_TessLevelOuter[3] = 7.0;\n"
542 << "}\n";
543
544 programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
545 }
546
547 // Tessellation evaluation shader
548 {
549 const std::string tesIn0 = tcsToTES ? "gl_in[0].gl_Position" : "in_te_attr[0]";
550 const std::string tesIn1 = tcsToTES ? "gl_in[1].gl_Position" : "in_te_attr[1]";
551 const std::string tesIn2 = tcsToTES ? "gl_in[2].gl_Position" : "in_te_attr[2]";
552
553 std::ostringstream src;
554 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
555 << "#extension GL_EXT_tessellation_shader : require\n"
556 << "\n"
557 << "layout(" << getTessPrimitiveTypeShaderName(TESSPRIMITIVETYPE_TRIANGLES) << ") in;\n"
558 << "\n"
559 << (!tcsToTES ? "layout(location = 0) in highp vec4 in_te_attr[];\n" : "")
560 << "layout(location = 0) out highp vec4 in_f_color;\n"
561 << "\n"
562 << "void main (void)\n"
563 << "{\n"
564 << " highp vec2 xy = gl_TessCoord.x * " << tesIn0 << ".xy\n"
565 << " + gl_TessCoord.y * " << tesIn1 << ".xy\n"
566 << " + gl_TessCoord.z * " << tesIn2 << ".xy;\n"
567 << " gl_Position = vec4(xy, 0.0, 1.0);\n"
568 << " in_f_color = vec4(" << tesIn0 << ".z + " << tesIn1 << ".w,\n"
569 << " " << tesIn2 << ".z + " << tesIn0 << ".w,\n"
570 << " " << tesIn1 << ".z + " << tesIn2 << ".w,\n"
571 << " 1.0);\n"
572 << "}\n";
573
574 programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
575 }
576
577 // Fragment shader
578 {
579 std::ostringstream src;
580 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
581 << "\n"
582 << "layout(location = 0) in highp vec4 in_f_color;\n"
583 << "layout(location = 0) out mediump vec4 o_color;\n"
584 << "\n"
585 << "void main (void)\n"
586 << "{\n"
587 << " o_color = in_f_color;\n"
588 << "}\n";
589
590 programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
591 }
592 }
593
test(Context & context,const CaseType caseType)594 tcu::TestStatus test (Context& context, const CaseType caseType)
595 {
596 DE_UNREF(caseType);
597
598 // Input vertex attribute data
599 static const float vertexData[3*4] =
600 {
601 -0.8f, -0.7f, 0.1f, 0.7f,
602 -0.5f, 0.4f, 0.2f, 0.5f,
603 0.3f, 0.2f, 0.3f, 0.45f
604 };
605
606 tcu::TextureLevel referenceImage;
607 tcu::ImageIO::loadPNG(referenceImage, context.getTestContext().getArchive(), "vulkan/data/tessellation/gl_position_ref.png");
608
609 const int numPrimitives = 1;
610 const int inPatchSize = 3;
611 const int outPatchSize = 3;
612
613 return runTest(context, numPrimitives, inPatchSize, outPatchSize,
614 VK_FORMAT_R32G32B32A32_SFLOAT, vertexData, sizeof(vertexData), referenceImage.getAccess());
615 }
616
617 } // GLPosition ns
618
619 namespace Barrier
620 {
621
622 enum Constants
623 {
624 NUM_VERTICES = 32,
625 };
626
initPrograms(vk::SourceCollections & programCollection)627 void initPrograms (vk::SourceCollections& programCollection)
628 {
629 // Vertex shader
630 {
631 std::ostringstream src;
632 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
633 << "\n"
634 << "layout(location = 0) in highp float in_v_attr;\n"
635 << "layout(location = 0) out highp float in_tc_attr;\n"
636 << "\n"
637 << "void main (void)\n"
638 << "{\n"
639 << " in_tc_attr = in_v_attr;\n"
640 << "}\n";
641
642 programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
643 }
644
645 // Tessellation control shader
646 {
647 std::ostringstream src;
648 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
649 << "#extension GL_EXT_tessellation_shader : require\n"
650 << "\n"
651 << "layout(vertices = " << NUM_VERTICES << ") out;\n"
652 << "\n"
653 << "layout(location = 0) in highp float in_tc_attr[];\n"
654 << "layout(location = 0) out highp float in_te_attr[];\n"
655 << "\n"
656 << "layout(location = 1) patch out highp float in_te_patchAttr;\n"
657 << "\n"
658 << "void main (void)\n"
659 << "{\n"
660 << " in_te_attr[gl_InvocationID] = in_tc_attr[gl_InvocationID];\n"
661 << " in_te_patchAttr = 0.0f;\n"
662 << "\n"
663 << " barrier();\n"
664 << "\n"
665 << " if (gl_InvocationID == 5)\n"
666 << " in_te_patchAttr = float(gl_InvocationID)*0.1;\n"
667 << "\n"
668 << " barrier();\n"
669 << "\n"
670 << " highp float temp = in_te_patchAttr + in_te_attr[gl_InvocationID];\n"
671 << "\n"
672 << " barrier();\n"
673 << "\n"
674 << " if (gl_InvocationID == " << NUM_VERTICES << "-1)\n"
675 << " in_te_patchAttr = float(gl_InvocationID);\n"
676 << "\n"
677 << " barrier();\n"
678 << "\n"
679 << " in_te_attr[gl_InvocationID] = temp;\n"
680 << "\n"
681 << " barrier();\n"
682 << "\n"
683 << " temp = temp + in_te_attr[(gl_InvocationID+1) % " << NUM_VERTICES << "];\n"
684 << "\n"
685 << " barrier();\n"
686 << "\n"
687 << " in_te_attr[gl_InvocationID] = 0.25*temp;\n"
688 << "\n"
689 << " gl_TessLevelInner[0] = 32.0;\n"
690 << " gl_TessLevelInner[1] = 32.0;\n"
691 << "\n"
692 << " gl_TessLevelOuter[0] = 32.0;\n"
693 << " gl_TessLevelOuter[1] = 32.0;\n"
694 << " gl_TessLevelOuter[2] = 32.0;\n"
695 << " gl_TessLevelOuter[3] = 32.0;\n"
696 << "}\n";
697
698 programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
699 }
700
701 // Tessellation evaluation shader
702 {
703 std::ostringstream src;
704 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
705 << "#extension GL_EXT_tessellation_shader : require\n"
706 << "\n"
707 << "layout(" << getTessPrimitiveTypeShaderName(TESSPRIMITIVETYPE_QUADS) << ") in;\n"
708 << "\n"
709 << "layout(location = 0) in highp float in_te_attr[];\n"
710 << "layout(location = 1) patch in highp float in_te_patchAttr;\n"
711 << "\n"
712 << "layout(location = 0) out highp float in_f_blue;\n"
713 << "\n"
714 << "void main (void)\n"
715 << "{\n"
716 << " highp float x = gl_TessCoord.x*2.0 - 1.0;\n"
717 << " highp float y = gl_TessCoord.y - in_te_attr[int(round(gl_TessCoord.x*float(" << NUM_VERTICES << "-1)))];\n"
718 << " gl_Position = vec4(x, y, 0.0, 1.0);\n"
719 << " in_f_blue = abs(in_te_patchAttr - float(" << NUM_VERTICES << "-1));\n"
720 << "}\n";
721
722 programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
723 }
724
725 // Fragment shader
726 {
727 std::ostringstream src;
728 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
729 << "\n"
730 << "layout(location = 0) in highp float in_f_blue;\n"
731 << "layout(location = 0) out mediump vec4 o_color;\n"
732 << "\n"
733 << "void main (void)\n"
734 << "{\n"
735 << " o_color = vec4(1.0, 0.0, in_f_blue, 1.0);\n"
736 << "}\n";
737
738 programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
739 }
740 }
741
test(Context & context)742 tcu::TestStatus test (Context& context)
743 {
744 // Input vertex attribute data
745 std::vector<float> vertexData (NUM_VERTICES);
746 const VkDeviceSize vertexBufferSize = sizeof(float) * vertexData.size();
747
748 for (int i = 0; i < NUM_VERTICES; ++i)
749 vertexData[i] = static_cast<float>(i) / (NUM_VERTICES - 1);
750
751 tcu::TextureLevel referenceImage;
752 tcu::ImageIO::loadPNG(referenceImage, context.getTestContext().getArchive(), "vulkan/data/tessellation/barrier_ref.png");
753
754 const int numPrimitives = 1;
755 const int inPatchSize = NUM_VERTICES;
756 const int outPatchSize = NUM_VERTICES;
757
758 return runTest(context, numPrimitives, inPatchSize, outPatchSize,
759 VK_FORMAT_R32_SFLOAT, &vertexData[0], vertexBufferSize, referenceImage.getAccess());
760 }
761
762 } // Barrier ns
763
764 namespace CrossInvocation
765 {
766
767 enum Constants
768 {
769 OUTPUT_PATCH_SIZE = 3,
770 INPUT_PATCH_SIZE = 10
771 };
772
773 enum CaseType
774 {
775 CASETYPE_PER_VERTEX,
776 CASETYPE_PER_PATCH
777 };
778
779 enum DataType
780 {
781 DATATYPE_INT,
782 DATATYPE_UINT,
783 DATATYPE_FLOAT,
784 DATATYPE_VEC3,
785 DATATYPE_VEC4,
786 DATATYPE_MAT4X3
787 };
788
789 struct CaseDefinition
790 {
791 CaseType caseType;
792 DataType dataType;
793 };
794
initPrograms(vk::SourceCollections & programCollection,const CaseDefinition caseDef)795 void initPrograms (vk::SourceCollections& programCollection, const CaseDefinition caseDef)
796 {
797 static const std::string typeStr[] =
798 {
799 "int",
800 "uint",
801 "float",
802 "vec3",
803 "vec4",
804 "mat4x3"
805 };
806 const std::string dataType = typeStr[caseDef.dataType];
807 const int varyingSize[] = { 1, 1, 1, 1, 1, 4 };
808
809 // Vertex shader
810 {
811 std::ostringstream src;
812 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
813 << "\n"
814 << "layout(location = 0) in highp float in_v_attr;\n"
815 << "layout(location = 0) out highp float in_tc_attr;\n"
816 << "\n"
817 << "void main (void)\n"
818 << "{\n"
819 << " in_tc_attr = in_v_attr;\n"
820 << "}\n";
821
822 programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
823 }
824
825 // Tessellation control shader
826 {
827 std::ostringstream src;
828 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
829 << "#extension GL_EXT_tessellation_shader : require\n"
830 << "\n"
831 << "layout(vertices = " << OUTPUT_PATCH_SIZE << ") out;\n"
832 << "\n"
833 << "layout(location = 0) in highp float in_tc_attr[];\n"
834 << "layout(location = 0) out highp float in_te_attr[];\n"
835 << "\n";
836
837 if (caseDef.caseType == CASETYPE_PER_VERTEX)
838 src << "layout(location = 1) out mediump " << dataType << " in_te_data0[];\n"
839 << "layout(location = " << varyingSize[caseDef.dataType] + 1 << ") out mediump " << dataType << " in_te_data1[];\n";
840 else
841 src << "layout(location = 1) patch out mediump " << dataType << " in_te_data0[" << OUTPUT_PATCH_SIZE << "];\n"
842 << "layout(location = " << OUTPUT_PATCH_SIZE * varyingSize[caseDef.dataType] + 1 << ") patch out mediump " << dataType << " in_te_data1[" << OUTPUT_PATCH_SIZE << "];\n";
843
844 src << "\n"
845 << "void main (void)\n"
846 << "{\n"
847 << " " << dataType << " d = " << dataType << "(gl_InvocationID);\n"
848 << " in_te_data0[gl_InvocationID] = d;\n"
849 << " barrier();\n"
850 << " in_te_data1[gl_InvocationID] = d + in_te_data0[(gl_InvocationID + 1) % " << OUTPUT_PATCH_SIZE << "];\n"
851 << "\n"
852 << " in_te_attr[gl_InvocationID] = in_tc_attr[gl_InvocationID];\n"
853 << "\n"
854 << " gl_TessLevelInner[0] = 1.0;\n"
855 << " gl_TessLevelInner[1] = 1.0;\n"
856 << "\n"
857 << " gl_TessLevelOuter[0] = 1.0;\n"
858 << " gl_TessLevelOuter[1] = 1.0;\n"
859 << " gl_TessLevelOuter[2] = 1.0;\n"
860 << " gl_TessLevelOuter[3] = 1.0;\n"
861 << "}\n";
862
863 programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
864 }
865
866 // Tessellation evaluation shader
867 {
868 const float xScale = 1.0f / 8.0f;
869
870 std::ostringstream src;
871 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
872 << "#extension GL_EXT_tessellation_shader : require\n"
873 << "\n"
874 << "layout(" << getTessPrimitiveTypeShaderName(TESSPRIMITIVETYPE_QUADS) << ") in;\n"
875 << "\n"
876 << "layout(location = 0) in highp float in_te_attr[];\n"
877 << "layout(location = 0) out mediump vec4 in_f_color;\n"
878 << "\n";
879
880 if (caseDef.caseType == CASETYPE_PER_VERTEX)
881 src << "layout(location = 1) in mediump " << dataType << " in_te_data0[];\n"
882 << "layout(location = " << varyingSize[caseDef.dataType] + 1 << ") in mediump " << dataType << " in_te_data1[];\n";
883 else
884 src << "layout(location = 1) patch in mediump " << dataType << " in_te_data0[" << OUTPUT_PATCH_SIZE << "];\n"
885 << "layout(location = " << OUTPUT_PATCH_SIZE * varyingSize[caseDef.dataType] + 1 << ") patch in mediump " << dataType << " in_te_data1[" << OUTPUT_PATCH_SIZE << "];\n";
886
887 src << "\n"
888 << "void main (void)\n"
889 << "{\n"
890 << " highp float x = (gl_TessCoord.x*float(" << xScale << ") + in_te_attr[0]) * 2.0 - 1.0;\n"
891 << " highp float y = gl_TessCoord.y*2.0 - 1.0;\n"
892 << " gl_Position = vec4(x, y, 0.0, 1.0);\n"
893 << " bool ok = true;\n"
894 << " for (int i = 0; i < " << OUTPUT_PATCH_SIZE << "; i++)\n"
895 << " {\n"
896 << " int ref = i + (i + 1) % " << OUTPUT_PATCH_SIZE << ";\n"
897 << " if (in_te_data1[i] != " << dataType << "(ref)) ok = false;\n"
898 << " }\n"
899 << " in_f_color = ok ? vec4(1.0) : vec4(vec3(0.0), 1.0);\n"
900 << "}\n";
901
902 programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
903 }
904
905 // Fragment shader
906 {
907 std::ostringstream src;
908 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
909 << "\n"
910 << "layout(location = 0) in mediump vec4 in_f_color;\n"
911 << "layout(location = 0) out mediump vec4 o_color;\n"
912 << "\n"
913 << "void main (void)\n"
914 << "{\n"
915 << " o_color = in_f_color;\n"
916 << "}\n";
917
918 programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
919 }
920 }
921
test(Context & context,const CaseDefinition caseDef)922 tcu::TestStatus test (Context& context, const CaseDefinition caseDef)
923 {
924 DE_UNREF(caseDef);
925 // Input vertex attribute data
926 const int numPrimitives = 8;
927 std::vector<float> vertexData (INPUT_PATCH_SIZE * numPrimitives, 0.0f);
928 const VkDeviceSize vertexBufferSize = sizeof(float) * vertexData.size();
929
930 for (int i = 0; i < numPrimitives; ++i)
931 vertexData[INPUT_PATCH_SIZE * i] = static_cast<float>(i) / static_cast<float>(numPrimitives);
932
933 tcu::TextureLevel referenceImage;
934 initializeWhiteReferenceImage(referenceImage, RENDER_SIZE, RENDER_SIZE);
935
936 return runTest(context, numPrimitives, INPUT_PATCH_SIZE, OUTPUT_PATCH_SIZE,
937 VK_FORMAT_R32_SFLOAT, &vertexData[0], vertexBufferSize, referenceImage.getAccess());
938 }
939
940 } // CrossInvocation ns
941
942 } // anonymous
943
944 //! These tests correspond to dEQP-GLES31.functional.tessellation.shader_input_output.*
createShaderInputOutputTests(tcu::TestContext & testCtx)945 tcu::TestCaseGroup* createShaderInputOutputTests (tcu::TestContext& testCtx)
946 {
947 de::MovePtr<tcu::TestCaseGroup> group (new tcu::TestCaseGroup(testCtx, "shader_input_output", "Test tessellation control and evaluation shader inputs and outputs"));
948
949 // Patch vertex counts
950 {
951 static const struct
952 {
953 int inPatchSize;
954 int outPatchSize;
955 } patchVertexCountCases[] =
956 {
957 { 5, 10 },
958 { 10, 5 }
959 };
960
961 for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(patchVertexCountCases); caseNdx++)
962 {
963 const int inSize = patchVertexCountCases[caseNdx].inPatchSize;
964 const int outSize = patchVertexCountCases[caseNdx].outPatchSize;
965
966 const std::string caseName = "patch_vertices_" + de::toString(inSize) + "_in_" + de::toString(outSize) + "_out";
967 const PatchVertexCount::CaseDefinition caseDef =
968 {
969 inSize, outSize, "vulkan/data/tessellation/" + caseName + "_ref.png"
970 };
971
972 addFunctionCaseWithPrograms(group.get(), caseName, "Test input and output patch vertex counts",
973 PatchVertexCount::initPrograms, PatchVertexCount::test, caseDef);
974 }
975 }
976
977 // Per patch data
978 {
979 static const PerPatchData::CaseDefinition cases[] =
980 {
981 { PerPatchData::CASETYPE_PRIMITIVE_ID_TCS, "primitive_id_tcs", true, "vulkan/data/tessellation/primitive_id_tcs_ref.png", "Read gl_PrimitiveID in TCS and pass it as patch output to TES" },
982 { PerPatchData::CASETYPE_PRIMITIVE_ID_TES, "primitive_id_tes", true, "vulkan/data/tessellation/primitive_id_tes_ref.png", "Read gl_PrimitiveID in TES" },
983 { PerPatchData::CASETYPE_PATCH_VERTICES_IN_TCS, "patch_vertices_in_tcs", false, "", "Read gl_PatchVerticesIn in TCS and pass it as patch output to TES" },
984 { PerPatchData::CASETYPE_PATCH_VERTICES_IN_TES, "patch_vertices_in_tes", false, "", "Read gl_PatchVerticesIn in TES" },
985 { PerPatchData::CASETYPE_TESS_LEVEL_INNER0_TES, "tess_level_inner_0_tes", false, "", "Read gl_TessLevelInner[0] in TES" },
986 { PerPatchData::CASETYPE_TESS_LEVEL_INNER1_TES, "tess_level_inner_1_tes", false, "", "Read gl_TessLevelInner[1] in TES" },
987 { PerPatchData::CASETYPE_TESS_LEVEL_OUTER0_TES, "tess_level_outer_0_tes", false, "", "Read gl_TessLevelOuter[0] in TES" },
988 { PerPatchData::CASETYPE_TESS_LEVEL_OUTER1_TES, "tess_level_outer_1_tes", false, "", "Read gl_TessLevelOuter[1] in TES" },
989 { PerPatchData::CASETYPE_TESS_LEVEL_OUTER2_TES, "tess_level_outer_2_tes", false, "", "Read gl_TessLevelOuter[2] in TES" },
990 { PerPatchData::CASETYPE_TESS_LEVEL_OUTER3_TES, "tess_level_outer_3_tes", false, "", "Read gl_TessLevelOuter[3] in TES" },
991 };
992
993 for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(cases); ++caseNdx)
994 addFunctionCaseWithPrograms(group.get(), cases[caseNdx].caseName, cases[caseNdx].caseDescription,
995 PerPatchData::initPrograms, PerPatchData::test, cases[caseNdx]);
996 }
997
998 // gl_Position
999 {
1000 static const struct
1001 {
1002 GLPosition::CaseType type;
1003 std::string caseName;
1004 } cases[] =
1005 {
1006 { GLPosition::CASETYPE_VS_TO_TCS, "gl_position_vs_to_tcs" },
1007 { GLPosition::CASETYPE_TCS_TO_TES, "gl_position_tcs_to_tes" },
1008 { GLPosition::CASETYPE_VS_TO_TCS_TO_TES, "gl_position_vs_to_tcs_to_tes" },
1009 };
1010
1011 for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(cases); ++caseNdx)
1012 addFunctionCaseWithPrograms(group.get(), cases[caseNdx].caseName, "Pass gl_Position between VS and TCS, or between TCS and TES",
1013 GLPosition::initPrograms, GLPosition::test, cases[caseNdx].type);
1014 }
1015
1016 // Barrier
1017 addFunctionCaseWithPrograms(group.get(), "barrier", "Basic barrier usage", Barrier::initPrograms, Barrier::test);
1018
1019 // Cross invocation communication
1020 {
1021 static const struct
1022 {
1023 CrossInvocation::CaseType caseType;
1024 std::string name;
1025 } caseTypes[] =
1026 {
1027 { CrossInvocation::CASETYPE_PER_VERTEX, "cross_invocation_per_vertex" },
1028 { CrossInvocation::CASETYPE_PER_PATCH, "cross_invocation_per_patch" }
1029 };
1030
1031 static const struct
1032 {
1033 CrossInvocation::DataType dataType;
1034 std::string name;
1035 } dataTypes[] =
1036 {
1037 { CrossInvocation::DATATYPE_INT, "int" },
1038 { CrossInvocation::DATATYPE_UINT, "uint" },
1039 { CrossInvocation::DATATYPE_FLOAT, "float" },
1040 { CrossInvocation::DATATYPE_VEC3, "vec3" },
1041 { CrossInvocation::DATATYPE_VEC4, "vec4" },
1042 { CrossInvocation::DATATYPE_MAT4X3, "mat4x3" }
1043 };
1044
1045 for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(caseTypes); ++caseNdx)
1046 for (int dataTypeNdx = 0; dataTypeNdx < DE_LENGTH_OF_ARRAY(dataTypes); ++dataTypeNdx)
1047 {
1048 std::string testName = caseTypes[caseNdx].name + "_" + dataTypes[dataTypeNdx].name;
1049 CrossInvocation::CaseDefinition caseDef = { caseTypes[caseNdx].caseType, dataTypes[dataTypeNdx].dataType };
1050
1051 addFunctionCaseWithPrograms(group.get(), testName, "Write output varyings from multiple invocations.",
1052 CrossInvocation::initPrograms, CrossInvocation::test, caseDef);
1053 }
1054 }
1055
1056 return group.release();
1057 }
1058
1059 } // tessellation
1060 } // vkt
1061
