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 #include "vkBufferWithMemory.hpp"
44 #include "vkImageWithMemory.hpp"
45
46 #include "deUniquePtr.hpp"
47 #include "deStringUtil.hpp"
48
49 #include <string>
50 #include <vector>
51
52 namespace vkt
53 {
54 namespace tessellation
55 {
56
57 using namespace vk;
58
59 namespace
60 {
61
62 enum Constants
63 {
64 RENDER_SIZE = 256,
65 };
66
67 //! 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)68 tcu::TestStatus runTest (Context& context,
69 const int numPrimitives,
70 const int inPatchSize,
71 const int outPatchSize,
72 const VkFormat vertexFormat,
73 const void* vertexData,
74 const VkDeviceSize vertexDataSizeBytes,
75 const tcu::ConstPixelBufferAccess& referenceImageAccess)
76 {
77 requireFeatures(context.getInstanceInterface(), context.getPhysicalDevice(), FEATURE_TESSELLATION_SHADER);
78
79 const DeviceInterface& vk = context.getDeviceInterface();
80 const VkDevice device = context.getDevice();
81 const VkQueue queue = context.getUniversalQueue();
82 const deUint32 queueFamilyIndex = context.getUniversalQueueFamilyIndex();
83 Allocator& allocator = context.getDefaultAllocator();
84
85 // Vertex input: may be just some abstract numbers
86
87 const BufferWithMemory vertexBuffer(vk, device, allocator,
88 makeBufferCreateInfo(vertexDataSizeBytes, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT), MemoryRequirement::HostVisible);
89
90 {
91 const Allocation& alloc = vertexBuffer.getAllocation();
92
93 deMemcpy(alloc.getHostPtr(), vertexData, static_cast<std::size_t>(vertexDataSizeBytes));
94 flushAlloc(vk, device, alloc);
95 // No barrier needed, flushed memory is automatically visible
96 }
97
98 // Color attachment
99
100 const tcu::IVec2 renderSize = tcu::IVec2(RENDER_SIZE, RENDER_SIZE);
101 const VkFormat colorFormat = VK_FORMAT_R8G8B8A8_UNORM;
102 const VkImageSubresourceRange colorImageSubresourceRange = makeImageSubresourceRange(VK_IMAGE_ASPECT_COLOR_BIT, 0u, 1u, 0u, 1u);
103 const ImageWithMemory colorAttachmentImage (vk, device, allocator,
104 makeImageCreateInfo(renderSize, colorFormat, VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT, 1u),
105 MemoryRequirement::Any);
106
107 // Color output buffer: image will be copied here for verification
108
109 const VkDeviceSize colorBufferSizeBytes = renderSize.x()*renderSize.y() * tcu::getPixelSize(mapVkFormat(colorFormat));
110 const BufferWithMemory colorBuffer (vk, device, allocator, makeBufferCreateInfo(colorBufferSizeBytes, VK_BUFFER_USAGE_TRANSFER_DST_BIT), MemoryRequirement::HostVisible);
111
112 // Pipeline
113
114 const Unique<VkImageView> colorAttachmentView (makeImageView (vk, device, *colorAttachmentImage, VK_IMAGE_VIEW_TYPE_2D, colorFormat, colorImageSubresourceRange));
115 const Unique<VkRenderPass> renderPass (makeRenderPass (vk, device, colorFormat));
116 const Unique<VkFramebuffer> framebuffer (makeFramebuffer (vk, device, *renderPass, *colorAttachmentView, renderSize.x(), renderSize.y()));
117 const Unique<VkPipelineLayout> pipelineLayout (makePipelineLayout (vk, device));
118 const Unique<VkCommandPool> cmdPool (makeCommandPool (vk, device, queueFamilyIndex));
119 const Unique<VkCommandBuffer> cmdBuffer (allocateCommandBuffer (vk, device, *cmdPool, VK_COMMAND_BUFFER_LEVEL_PRIMARY));
120
121 const Unique<VkPipeline> pipeline(GraphicsPipelineBuilder()
122 .setRenderSize (renderSize)
123 .setVertexInputSingleAttribute(vertexFormat, tcu::getPixelSize(mapVkFormat(vertexFormat)))
124 .setPatchControlPoints (inPatchSize)
125 .setShader (vk, device, VK_SHADER_STAGE_VERTEX_BIT, context.getBinaryCollection().get("vert"), DE_NULL)
126 .setShader (vk, device, VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT, context.getBinaryCollection().get("tesc"), DE_NULL)
127 .setShader (vk, device, VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT, context.getBinaryCollection().get("tese"), DE_NULL)
128 .setShader (vk, device, VK_SHADER_STAGE_FRAGMENT_BIT, context.getBinaryCollection().get("frag"), DE_NULL)
129 .build (vk, device, *pipelineLayout, *renderPass));
130
131 {
132 tcu::TestLog& log = context.getTestContext().getLog();
133 log << tcu::TestLog::Message
134 << "Note: input patch size is " << inPatchSize << ", output patch size is " << outPatchSize
135 << tcu::TestLog::EndMessage;
136 }
137
138 // Draw commands
139
140 beginCommandBuffer(vk, *cmdBuffer);
141
142 // Change color attachment image layout
143 {
144 const VkImageMemoryBarrier colorAttachmentLayoutBarrier = makeImageMemoryBarrier(
145 (VkAccessFlags)0, VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
146 VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
147 *colorAttachmentImage, colorImageSubresourceRange);
148
149 vk.cmdPipelineBarrier(*cmdBuffer, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, 0u,
150 0u, DE_NULL, 0u, DE_NULL, 1u, &colorAttachmentLayoutBarrier);
151 }
152
153 // Begin render pass
154 {
155 const VkRect2D renderArea = makeRect2D(renderSize);
156 const tcu::Vec4 clearColor (0.0f, 0.0f, 0.0f, 1.0f);
157
158 beginRenderPass(vk, *cmdBuffer, *renderPass, *framebuffer, renderArea, clearColor);
159 }
160
161 vk.cmdBindPipeline(*cmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, *pipeline);
162 {
163 const VkDeviceSize vertexBufferOffset = 0ull;
164 vk.cmdBindVertexBuffers(*cmdBuffer, 0u, 1u, &vertexBuffer.get(), &vertexBufferOffset);
165 }
166
167 // Process enough vertices to make a patch.
168 vk.cmdDraw(*cmdBuffer, numPrimitives * inPatchSize, 1u, 0u, 0u);
169 endRenderPass(vk, *cmdBuffer);
170
171 // Copy render result to a host-visible buffer
172 copyImageToBuffer(vk, *cmdBuffer, *colorAttachmentImage, *colorBuffer, renderSize);
173
174 endCommandBuffer(vk, *cmdBuffer);
175 submitCommandsAndWait(vk, device, queue, *cmdBuffer);
176
177 {
178 const Allocation& colorBufferAlloc = colorBuffer.getAllocation();
179
180 invalidateAlloc(vk, device, colorBufferAlloc);
181
182 // Verify case result
183 const tcu::ConstPixelBufferAccess resultImageAccess (mapVkFormat(colorFormat), renderSize.x(), renderSize.y(), 1, colorBufferAlloc.getHostPtr());
184 tcu::TestLog& log = context.getTestContext().getLog();
185 const bool ok = tcu::fuzzyCompare(log, "ImageComparison", "Image Comparison", referenceImageAccess, resultImageAccess,
186 0.002f, tcu::COMPARE_LOG_RESULT);
187
188 return (ok ? tcu::TestStatus::pass("OK") : tcu::TestStatus::fail("Failure"));
189 }
190 }
191
192 //! Resize an image and fill with white color.
initializeWhiteReferenceImage(tcu::TextureLevel & image,const int width,const int height)193 void initializeWhiteReferenceImage (tcu::TextureLevel& image, const int width, const int height)
194 {
195 DE_ASSERT(width > 0 && height > 0);
196
197 image.setStorage(mapVkFormat(VK_FORMAT_R8G8B8A8_UNORM), width, height);
198 tcu::PixelBufferAccess access = image.getAccess();
199
200 const tcu::Vec4 white(1.0f, 1.0f, 1.0f, 1.0f);
201
202 for (int y = 0; y < height; ++y)
203 for (int x = 0; x < width; ++x)
204 access.setPixel(white, x, y);
205 }
206
207 namespace PatchVertexCount
208 {
209
210 struct CaseDefinition
211 {
212 int inPatchSize;
213 int outPatchSize;
214 std::string referenceImagePath;
215 };
216
initPrograms(vk::SourceCollections & programCollection,const CaseDefinition caseDef)217 void initPrograms (vk::SourceCollections& programCollection, const CaseDefinition caseDef)
218 {
219 // Vertex shader
220 {
221 std::ostringstream src;
222 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
223 << "\n"
224 << "layout(location = 0) in highp float in_v_attr;\n"
225 << "layout(location = 0) out highp float in_tc_attr;\n"
226 << "\n"
227 << "void main (void)\n"
228 << "{\n"
229 << " in_tc_attr = in_v_attr;\n"
230 << "}\n";
231
232 programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
233 }
234
235 // Tessellation control shader
236 {
237 std::ostringstream src;
238 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
239 << "#extension GL_EXT_tessellation_shader : require\n"
240 << "\n"
241 << "layout(vertices = " << caseDef.outPatchSize << ") out;\n"
242 << "\n"
243 << "layout(location = 0) in highp float in_tc_attr[];\n"
244 << "layout(location = 0) out highp float in_te_attr[];\n"
245 << "\n"
246 << "void main (void)\n"
247 << "{\n"
248 << " in_te_attr[gl_InvocationID] = in_tc_attr[gl_InvocationID*" << caseDef.inPatchSize << "/" << caseDef.outPatchSize << "];\n"
249 << "\n"
250 << " gl_TessLevelInner[0] = 5.0;\n"
251 << " gl_TessLevelInner[1] = 5.0;\n"
252 << "\n"
253 << " gl_TessLevelOuter[0] = 5.0;\n"
254 << " gl_TessLevelOuter[1] = 5.0;\n"
255 << " gl_TessLevelOuter[2] = 5.0;\n"
256 << " gl_TessLevelOuter[3] = 5.0;\n"
257 << "}\n";
258
259 programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
260 }
261
262 // Tessellation evaluation shader
263 {
264 std::ostringstream src;
265 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
266 << "#extension GL_EXT_tessellation_shader : require\n"
267 << "\n"
268 << "layout(" << getTessPrimitiveTypeShaderName(TESSPRIMITIVETYPE_QUADS) << ") in;\n"
269 << "\n"
270 << "layout(location = 0) in highp float in_te_attr[];\n"
271 << "layout(location = 0) out mediump vec4 in_f_color;\n"
272 << "\n"
273 << "void main (void)\n"
274 << "{\n"
275 << " highp float x = gl_TessCoord.x*2.0 - 1.0;\n"
276 << " highp float y = gl_TessCoord.y - in_te_attr[int(round(gl_TessCoord.x*float(" << caseDef.outPatchSize << "-1)))];\n"
277 << " gl_Position = vec4(x, y, 0.0, 1.0);\n"
278 << " in_f_color = vec4(1.0);\n"
279 << "}\n";
280
281 programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
282 }
283
284 // Fragment shader
285 {
286 std::ostringstream src;
287 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
288 << "\n"
289 << "layout(location = 0) in mediump vec4 in_f_color;\n"
290 << "layout(location = 0) out mediump vec4 o_color;\n"
291 << "\n"
292 << "void main (void)\n"
293 << "{\n"
294 << " o_color = in_f_color;\n"
295 << "}\n";
296
297 programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
298 }
299 }
300
test(Context & context,const CaseDefinition caseDef)301 tcu::TestStatus test (Context& context, const CaseDefinition caseDef)
302 {
303 // Input vertex attribute data
304 std::vector<float> vertexData;
305 vertexData.reserve(caseDef.inPatchSize);
306 for (int i = 0; i < caseDef.inPatchSize; ++i)
307 {
308 const float f = static_cast<float>(i) / static_cast<float>(caseDef.inPatchSize - 1);
309 vertexData.push_back(f*f);
310 }
311 const VkDeviceSize vertexBufferSize = sizeof(float) * vertexData.size();
312
313 // Load reference image
314 tcu::TextureLevel referenceImage;
315 tcu::ImageIO::loadPNG(referenceImage, context.getTestContext().getArchive(), caseDef.referenceImagePath.c_str());
316
317 const int numPrimitives = 1;
318
319 return runTest(context, numPrimitives, caseDef.inPatchSize, caseDef.outPatchSize,
320 VK_FORMAT_R32_SFLOAT, &vertexData[0], vertexBufferSize, referenceImage.getAccess());
321 }
322
323 } // PatchVertexCountTest ns
324
325 namespace PerPatchData
326 {
327
328 enum CaseType
329 {
330 CASETYPE_PRIMITIVE_ID_TCS,
331 CASETYPE_PRIMITIVE_ID_TES,
332 CASETYPE_PATCH_VERTICES_IN_TCS,
333 CASETYPE_PATCH_VERTICES_IN_TES,
334 CASETYPE_TESS_LEVEL_INNER0_TES,
335 CASETYPE_TESS_LEVEL_INNER1_TES,
336 CASETYPE_TESS_LEVEL_OUTER0_TES,
337 CASETYPE_TESS_LEVEL_OUTER1_TES,
338 CASETYPE_TESS_LEVEL_OUTER2_TES,
339 CASETYPE_TESS_LEVEL_OUTER3_TES,
340 };
341
342 enum Constants
343 {
344 OUTPUT_PATCH_SIZE = 5,
345 INPUT_PATCH_SIZE = 10,
346 };
347
348 struct CaseDefinition
349 {
350 CaseType caseType;
351 std::string caseName;
352 bool usesReferenceImageFromFile;
353 std::string referenceImagePath;
354 std::string caseDescription;
355 };
356
getNumPrimitives(const CaseType type)357 int getNumPrimitives (const CaseType type)
358 {
359 return (type == CASETYPE_PRIMITIVE_ID_TCS || type == CASETYPE_PRIMITIVE_ID_TES ? 8 : 1);
360 }
361
initPrograms(vk::SourceCollections & programCollection,const CaseDefinition caseDef)362 void initPrograms (vk::SourceCollections& programCollection, const CaseDefinition caseDef)
363 {
364 // Vertex shader
365 {
366 std::ostringstream src;
367 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
368 << "\n"
369 << "layout(location = 0) in highp float in_v_attr;\n"
370 << "layout(location = 0) out highp float in_tc_attr;\n"
371 << "\n"
372 << "void main (void)\n"
373 << "{\n"
374 << " in_tc_attr = in_v_attr;\n"
375 << "}\n";
376
377 programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
378 }
379
380 // Tessellation control shader
381 {
382 std::ostringstream src;
383 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
384 << "#extension GL_EXT_tessellation_shader : require\n"
385 << "\n"
386 << "layout(vertices = " << OUTPUT_PATCH_SIZE << ") out;\n"
387 << "\n"
388 << "layout(location = 0) in highp float in_tc_attr[];\n"
389 << "layout(location = 0) out highp float in_te_attr[];\n"
390 << "\n"
391 << (caseDef.caseType == CASETYPE_PRIMITIVE_ID_TCS ? "layout(location = 1) patch out mediump int in_te_primitiveIDFromTCS;\n" :
392 caseDef.caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? "layout(location = 1) patch out mediump int in_te_patchVerticesInFromTCS;\n" : "")
393 << "\n"
394 << "void main (void)\n"
395 << "{\n"
396 << " in_te_attr[gl_InvocationID] = in_tc_attr[gl_InvocationID];\n"
397 << (caseDef.caseType == CASETYPE_PRIMITIVE_ID_TCS ? " in_te_primitiveIDFromTCS = gl_PrimitiveID;\n" :
398 caseDef.caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? " in_te_patchVerticesInFromTCS = gl_PatchVerticesIn;\n" : "")
399 << "\n"
400 << " gl_TessLevelInner[0] = 9.0;\n"
401 << " gl_TessLevelInner[1] = 8.0;\n"
402 << "\n"
403 << " gl_TessLevelOuter[0] = 7.0;\n"
404 << " gl_TessLevelOuter[1] = 6.0;\n"
405 << " gl_TessLevelOuter[2] = 5.0;\n"
406 << " gl_TessLevelOuter[3] = 4.0;\n"
407 << "}\n";
408
409 programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
410 }
411
412 // Tessellation evaluation shader
413 {
414 const float xScale = 1.0f / static_cast<float>(getNumPrimitives(caseDef.caseType));
415
416 std::ostringstream src;
417 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
418 << "#extension GL_EXT_tessellation_shader : require\n"
419 << "\n"
420 << "layout(" << getTessPrimitiveTypeShaderName(TESSPRIMITIVETYPE_QUADS) << ") in;\n"
421 << "\n"
422 << "layout(location = 0) in highp float in_te_attr[];\n"
423 << "layout(location = 0) out mediump vec4 in_f_color;\n"
424 << "\n"
425 << (caseDef.caseType == CASETYPE_PRIMITIVE_ID_TCS ? "layout(location = 1) patch in mediump int in_te_primitiveIDFromTCS;\n" :
426 caseDef.caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? "layout(location = 1) patch in mediump int in_te_patchVerticesInFromTCS;\n" : "")
427 << "\n"
428 << "void main (void)\n"
429 << "{\n"
430 << " highp float x = (gl_TessCoord.x*float(" << xScale << ") + in_te_attr[0]) * 2.0 - 1.0;\n"
431 << " highp float y = gl_TessCoord.y*2.0 - 1.0;\n"
432 << " gl_Position = vec4(x, y, 0.0, 1.0);\n"
433 << (caseDef.caseType == CASETYPE_PRIMITIVE_ID_TCS ? " bool ok = in_te_primitiveIDFromTCS == 3;\n" :
434 caseDef.caseType == CASETYPE_PRIMITIVE_ID_TES ? " bool ok = gl_PrimitiveID == 3;\n" :
435 caseDef.caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? " bool ok = in_te_patchVerticesInFromTCS == " + de::toString(INPUT_PATCH_SIZE) + ";\n" :
436 caseDef.caseType == CASETYPE_PATCH_VERTICES_IN_TES ? " bool ok = gl_PatchVerticesIn == " + de::toString(OUTPUT_PATCH_SIZE) + ";\n" :
437 caseDef.caseType == CASETYPE_TESS_LEVEL_INNER0_TES ? " bool ok = abs(gl_TessLevelInner[0] - 9.0) < 0.1f;\n" :
438 caseDef.caseType == CASETYPE_TESS_LEVEL_INNER1_TES ? " bool ok = abs(gl_TessLevelInner[1] - 8.0) < 0.1f;\n" :
439 caseDef.caseType == CASETYPE_TESS_LEVEL_OUTER0_TES ? " bool ok = abs(gl_TessLevelOuter[0] - 7.0) < 0.1f;\n" :
440 caseDef.caseType == CASETYPE_TESS_LEVEL_OUTER1_TES ? " bool ok = abs(gl_TessLevelOuter[1] - 6.0) < 0.1f;\n" :
441 caseDef.caseType == CASETYPE_TESS_LEVEL_OUTER2_TES ? " bool ok = abs(gl_TessLevelOuter[2] - 5.0) < 0.1f;\n" :
442 caseDef.caseType == CASETYPE_TESS_LEVEL_OUTER3_TES ? " bool ok = abs(gl_TessLevelOuter[3] - 4.0) < 0.1f;\n" : "")
443 << " in_f_color = ok ? vec4(1.0) : vec4(vec3(0.0), 1.0);\n"
444 << "}\n";
445
446 programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
447 }
448
449 // Fragment shader
450 {
451 std::ostringstream src;
452 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
453 << "\n"
454 << "layout(location = 0) in mediump vec4 in_f_color;\n"
455 << "layout(location = 0) out mediump vec4 o_color;\n"
456 << "\n"
457 << "void main (void)\n"
458 << "{\n"
459 << " o_color = in_f_color;\n"
460 << "}\n";
461
462 programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
463 }
464 }
465
test(Context & context,const CaseDefinition caseDef)466 tcu::TestStatus test (Context& context, const CaseDefinition caseDef)
467 {
468 DE_ASSERT(!caseDef.usesReferenceImageFromFile || !caseDef.referenceImagePath.empty());
469
470 // Input vertex attribute data
471 const int numPrimitives = getNumPrimitives(caseDef.caseType);
472 std::vector<float> vertexData (INPUT_PATCH_SIZE * numPrimitives, 0.0f);
473 const VkDeviceSize vertexBufferSize = sizeof(float) * vertexData.size();
474
475 for (int i = 0; i < numPrimitives; ++i)
476 vertexData[INPUT_PATCH_SIZE * i] = static_cast<float>(i) / static_cast<float>(numPrimitives);
477
478 tcu::TextureLevel referenceImage;
479 if (caseDef.usesReferenceImageFromFile)
480 tcu::ImageIO::loadPNG(referenceImage, context.getTestContext().getArchive(), caseDef.referenceImagePath.c_str());
481 else
482 initializeWhiteReferenceImage(referenceImage, RENDER_SIZE, RENDER_SIZE);
483
484 return runTest(context, numPrimitives, INPUT_PATCH_SIZE, OUTPUT_PATCH_SIZE,
485 VK_FORMAT_R32_SFLOAT, &vertexData[0], vertexBufferSize, referenceImage.getAccess());
486 }
487
488 } // PerPatchData ns
489
490 namespace GLPosition
491 {
492
493 enum CaseType
494 {
495 CASETYPE_VS_TO_TCS = 0,
496 CASETYPE_TCS_TO_TES,
497 CASETYPE_VS_TO_TCS_TO_TES,
498 };
499
initPrograms(vk::SourceCollections & programCollection,const CaseType caseType)500 void initPrograms (vk::SourceCollections& programCollection, const CaseType caseType)
501 {
502 const bool vsToTCS = caseType == CASETYPE_VS_TO_TCS || caseType == CASETYPE_VS_TO_TCS_TO_TES;
503 const bool tcsToTES = caseType == CASETYPE_TCS_TO_TES || caseType == CASETYPE_VS_TO_TCS_TO_TES;
504
505 // Vertex shader
506 {
507 std::ostringstream src;
508 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
509 << "\n"
510 << "layout(location = 0) in highp vec4 in_v_attr;\n"
511 << (!vsToTCS ? "layout(location = 0) out highp vec4 in_tc_attr;\n" : "")
512 << "\n"
513 << "void main (void)\n"
514 << "{\n"
515 << " " << (vsToTCS ? "gl_Position" : "in_tc_attr") << " = in_v_attr;\n"
516 << "}\n";
517
518 programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
519 }
520
521 // Tessellation control shader
522 {
523 std::ostringstream src;
524 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
525 << "#extension GL_EXT_tessellation_shader : require\n"
526 << "\n"
527 << "layout(vertices = 3) out;\n"
528 << "\n"
529 << (!vsToTCS ? "layout(location = 0) in highp vec4 in_tc_attr[];\n" : "")
530 << (!tcsToTES ? "layout(location = 0) out highp vec4 in_te_attr[];\n" : "")
531 << "\n"
532 << "void main (void)\n"
533 << "{\n"
534 << " " << (tcsToTES ? "gl_out[gl_InvocationID].gl_Position" : "in_te_attr[gl_InvocationID]") << " = "
535 << (vsToTCS ? "gl_in[gl_InvocationID].gl_Position" : "in_tc_attr[gl_InvocationID]") << ";\n"
536 << "\n"
537 << " gl_TessLevelInner[0] = 2.0;\n"
538 << " gl_TessLevelInner[1] = 3.0;\n"
539 << "\n"
540 << " gl_TessLevelOuter[0] = 4.0;\n"
541 << " gl_TessLevelOuter[1] = 5.0;\n"
542 << " gl_TessLevelOuter[2] = 6.0;\n"
543 << " gl_TessLevelOuter[3] = 7.0;\n"
544 << "}\n";
545
546 programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
547 }
548
549 // Tessellation evaluation shader
550 {
551 const std::string tesIn0 = tcsToTES ? "gl_in[0].gl_Position" : "in_te_attr[0]";
552 const std::string tesIn1 = tcsToTES ? "gl_in[1].gl_Position" : "in_te_attr[1]";
553 const std::string tesIn2 = tcsToTES ? "gl_in[2].gl_Position" : "in_te_attr[2]";
554
555 std::ostringstream src;
556 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
557 << "#extension GL_EXT_tessellation_shader : require\n"
558 << "\n"
559 << "layout(" << getTessPrimitiveTypeShaderName(TESSPRIMITIVETYPE_TRIANGLES) << ") in;\n"
560 << "\n"
561 << (!tcsToTES ? "layout(location = 0) in highp vec4 in_te_attr[];\n" : "")
562 << "layout(location = 0) out highp vec4 in_f_color;\n"
563 << "\n"
564 << "void main (void)\n"
565 << "{\n"
566 << " highp vec2 xy = gl_TessCoord.x * " << tesIn0 << ".xy\n"
567 << " + gl_TessCoord.y * " << tesIn1 << ".xy\n"
568 << " + gl_TessCoord.z * " << tesIn2 << ".xy;\n"
569 << " gl_Position = vec4(xy, 0.0, 1.0);\n"
570 << " in_f_color = vec4(" << tesIn0 << ".z + " << tesIn1 << ".w,\n"
571 << " " << tesIn2 << ".z + " << tesIn0 << ".w,\n"
572 << " " << tesIn1 << ".z + " << tesIn2 << ".w,\n"
573 << " 1.0);\n"
574 << "}\n";
575
576 programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
577 }
578
579 // Fragment shader
580 {
581 std::ostringstream src;
582 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
583 << "\n"
584 << "layout(location = 0) in highp vec4 in_f_color;\n"
585 << "layout(location = 0) out mediump vec4 o_color;\n"
586 << "\n"
587 << "void main (void)\n"
588 << "{\n"
589 << " o_color = in_f_color;\n"
590 << "}\n";
591
592 programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
593 }
594 }
595
test(Context & context,const CaseType caseType)596 tcu::TestStatus test (Context& context, const CaseType caseType)
597 {
598 DE_UNREF(caseType);
599
600 // Input vertex attribute data
601 static const float vertexData[3*4] =
602 {
603 -0.8f, -0.7f, 0.1f, 0.7f,
604 -0.5f, 0.4f, 0.2f, 0.5f,
605 0.3f, 0.2f, 0.3f, 0.45f
606 };
607
608 tcu::TextureLevel referenceImage;
609 tcu::ImageIO::loadPNG(referenceImage, context.getTestContext().getArchive(), "vulkan/data/tessellation/gl_position_ref.png");
610
611 const int numPrimitives = 1;
612 const int inPatchSize = 3;
613 const int outPatchSize = 3;
614
615 return runTest(context, numPrimitives, inPatchSize, outPatchSize,
616 VK_FORMAT_R32G32B32A32_SFLOAT, vertexData, sizeof(vertexData), referenceImage.getAccess());
617 }
618
619 } // GLPosition ns
620
621 namespace Barrier
622 {
623
624 enum Constants
625 {
626 NUM_VERTICES = 32,
627 };
628
initPrograms(vk::SourceCollections & programCollection)629 void initPrograms (vk::SourceCollections& programCollection)
630 {
631 // Vertex shader
632 {
633 std::ostringstream src;
634 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
635 << "\n"
636 << "layout(location = 0) in highp float in_v_attr;\n"
637 << "layout(location = 0) out highp float in_tc_attr;\n"
638 << "\n"
639 << "void main (void)\n"
640 << "{\n"
641 << " in_tc_attr = in_v_attr;\n"
642 << "}\n";
643
644 programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
645 }
646
647 // Tessellation control shader
648 {
649 std::ostringstream src;
650 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
651 << "#extension GL_EXT_tessellation_shader : require\n"
652 << "\n"
653 << "layout(vertices = " << NUM_VERTICES << ") out;\n"
654 << "\n"
655 << "layout(location = 0) in highp float in_tc_attr[];\n"
656 << "layout(location = 0) out highp float in_te_attr[];\n"
657 << "\n"
658 << "layout(location = 1) patch out highp float in_te_patchAttr;\n"
659 << "\n"
660 << "void main (void)\n"
661 << "{\n"
662 << " in_te_attr[gl_InvocationID] = in_tc_attr[gl_InvocationID];\n"
663 << " in_te_patchAttr = 0.0f;\n"
664 << "\n"
665 << " barrier();\n"
666 << "\n"
667 << " if (gl_InvocationID == 5)\n"
668 << " in_te_patchAttr = float(gl_InvocationID)*0.1;\n"
669 << "\n"
670 << " barrier();\n"
671 << "\n"
672 << " highp float temp = in_te_patchAttr + in_te_attr[gl_InvocationID];\n"
673 << "\n"
674 << " barrier();\n"
675 << "\n"
676 << " if (gl_InvocationID == " << NUM_VERTICES << "-1)\n"
677 << " in_te_patchAttr = float(gl_InvocationID);\n"
678 << "\n"
679 << " barrier();\n"
680 << "\n"
681 << " in_te_attr[gl_InvocationID] = temp;\n"
682 << "\n"
683 << " barrier();\n"
684 << "\n"
685 << " temp = temp + in_te_attr[(gl_InvocationID+1) % " << NUM_VERTICES << "];\n"
686 << "\n"
687 << " barrier();\n"
688 << "\n"
689 << " in_te_attr[gl_InvocationID] = 0.25*temp;\n"
690 << "\n"
691 << " gl_TessLevelInner[0] = 32.0;\n"
692 << " gl_TessLevelInner[1] = 32.0;\n"
693 << "\n"
694 << " gl_TessLevelOuter[0] = 32.0;\n"
695 << " gl_TessLevelOuter[1] = 32.0;\n"
696 << " gl_TessLevelOuter[2] = 32.0;\n"
697 << " gl_TessLevelOuter[3] = 32.0;\n"
698 << "}\n";
699
700 programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
701 }
702
703 // Tessellation evaluation shader
704 {
705 std::ostringstream src;
706 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
707 << "#extension GL_EXT_tessellation_shader : require\n"
708 << "\n"
709 << "layout(" << getTessPrimitiveTypeShaderName(TESSPRIMITIVETYPE_QUADS) << ") in;\n"
710 << "\n"
711 << "layout(location = 0) in highp float in_te_attr[];\n"
712 << "layout(location = 1) patch in highp float in_te_patchAttr;\n"
713 << "\n"
714 << "layout(location = 0) out highp float in_f_blue;\n"
715 << "\n"
716 << "void main (void)\n"
717 << "{\n"
718 << " highp float x = gl_TessCoord.x*2.0 - 1.0;\n"
719 << " highp float y = gl_TessCoord.y - in_te_attr[int(round(gl_TessCoord.x*float(" << NUM_VERTICES << "-1)))];\n"
720 << " gl_Position = vec4(x, y, 0.0, 1.0);\n"
721 << " in_f_blue = abs(in_te_patchAttr - float(" << NUM_VERTICES << "-1));\n"
722 << "}\n";
723
724 programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
725 }
726
727 // Fragment shader
728 {
729 std::ostringstream src;
730 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
731 << "\n"
732 << "layout(location = 0) in highp float in_f_blue;\n"
733 << "layout(location = 0) out mediump vec4 o_color;\n"
734 << "\n"
735 << "void main (void)\n"
736 << "{\n"
737 << " o_color = vec4(1.0, 0.0, in_f_blue, 1.0);\n"
738 << "}\n";
739
740 programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
741 }
742 }
743
test(Context & context)744 tcu::TestStatus test (Context& context)
745 {
746 // Input vertex attribute data
747 std::vector<float> vertexData (NUM_VERTICES);
748 const VkDeviceSize vertexBufferSize = sizeof(float) * vertexData.size();
749
750 for (int i = 0; i < NUM_VERTICES; ++i)
751 vertexData[i] = static_cast<float>(i) / (NUM_VERTICES - 1);
752
753 tcu::TextureLevel referenceImage;
754 tcu::ImageIO::loadPNG(referenceImage, context.getTestContext().getArchive(), "vulkan/data/tessellation/barrier_ref.png");
755
756 const int numPrimitives = 1;
757 const int inPatchSize = NUM_VERTICES;
758 const int outPatchSize = NUM_VERTICES;
759
760 return runTest(context, numPrimitives, inPatchSize, outPatchSize,
761 VK_FORMAT_R32_SFLOAT, &vertexData[0], vertexBufferSize, referenceImage.getAccess());
762 }
763
764 } // Barrier ns
765
766 namespace CrossInvocation
767 {
768
769 enum Constants
770 {
771 OUTPUT_PATCH_SIZE = 3,
772 INPUT_PATCH_SIZE = 10
773 };
774
775 enum CaseType
776 {
777 CASETYPE_PER_VERTEX,
778 CASETYPE_PER_PATCH
779 };
780
781 enum DataType
782 {
783 DATATYPE_INT,
784 DATATYPE_UINT,
785 DATATYPE_FLOAT,
786 DATATYPE_VEC3,
787 DATATYPE_VEC4,
788 DATATYPE_MAT4X3
789 };
790
791 struct CaseDefinition
792 {
793 CaseType caseType;
794 DataType dataType;
795 };
796
initPrograms(vk::SourceCollections & programCollection,const CaseDefinition caseDef)797 void initPrograms (vk::SourceCollections& programCollection, const CaseDefinition caseDef)
798 {
799 static const std::string typeStr[] =
800 {
801 "int",
802 "uint",
803 "float",
804 "vec3",
805 "vec4",
806 "mat4x3"
807 };
808 const std::string dataType = typeStr[caseDef.dataType];
809 const int varyingSize[] = { 1, 1, 1, 1, 1, 4 };
810
811 // Vertex shader
812 {
813 std::ostringstream src;
814 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
815 << "\n"
816 << "layout(location = 0) in highp float in_v_attr;\n"
817 << "layout(location = 0) out highp float in_tc_attr;\n"
818 << "\n"
819 << "void main (void)\n"
820 << "{\n"
821 << " in_tc_attr = in_v_attr;\n"
822 << "}\n";
823
824 programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
825 }
826
827 // Tessellation control shader
828 {
829 std::ostringstream src;
830 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
831 << "#extension GL_EXT_tessellation_shader : require\n"
832 << "\n"
833 << "layout(vertices = " << OUTPUT_PATCH_SIZE << ") out;\n"
834 << "\n"
835 << "layout(location = 0) in highp float in_tc_attr[];\n"
836 << "layout(location = 0) out highp float in_te_attr[];\n"
837 << "\n";
838
839 if (caseDef.caseType == CASETYPE_PER_VERTEX)
840 src << "layout(location = 1) out mediump " << dataType << " in_te_data0[];\n"
841 << "layout(location = " << varyingSize[caseDef.dataType] + 1 << ") out mediump " << dataType << " in_te_data1[];\n";
842 else
843 src << "layout(location = 1) patch out mediump " << dataType << " in_te_data0[" << OUTPUT_PATCH_SIZE << "];\n"
844 << "layout(location = " << OUTPUT_PATCH_SIZE * varyingSize[caseDef.dataType] + 1 << ") patch out mediump " << dataType << " in_te_data1[" << OUTPUT_PATCH_SIZE << "];\n";
845
846 src << "\n"
847 << "void main (void)\n"
848 << "{\n"
849 << " " << dataType << " d = " << dataType << "(gl_InvocationID);\n"
850 << " in_te_data0[gl_InvocationID] = d;\n"
851 << " barrier();\n"
852 << " in_te_data1[gl_InvocationID] = d + in_te_data0[(gl_InvocationID + 1) % " << OUTPUT_PATCH_SIZE << "];\n"
853 << "\n"
854 << " in_te_attr[gl_InvocationID] = in_tc_attr[gl_InvocationID];\n"
855 << "\n"
856 << " gl_TessLevelInner[0] = 1.0;\n"
857 << " gl_TessLevelInner[1] = 1.0;\n"
858 << "\n"
859 << " gl_TessLevelOuter[0] = 1.0;\n"
860 << " gl_TessLevelOuter[1] = 1.0;\n"
861 << " gl_TessLevelOuter[2] = 1.0;\n"
862 << " gl_TessLevelOuter[3] = 1.0;\n"
863 << "}\n";
864
865 programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
866 }
867
868 // Tessellation evaluation shader
869 {
870 const float xScale = 1.0f / 8.0f;
871
872 std::ostringstream src;
873 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
874 << "#extension GL_EXT_tessellation_shader : require\n"
875 << "\n"
876 << "layout(" << getTessPrimitiveTypeShaderName(TESSPRIMITIVETYPE_QUADS) << ") in;\n"
877 << "\n"
878 << "layout(location = 0) in highp float in_te_attr[];\n"
879 << "layout(location = 0) out mediump vec4 in_f_color;\n"
880 << "\n";
881
882 if (caseDef.caseType == CASETYPE_PER_VERTEX)
883 src << "layout(location = 1) in mediump " << dataType << " in_te_data0[];\n"
884 << "layout(location = " << varyingSize[caseDef.dataType] + 1 << ") in mediump " << dataType << " in_te_data1[];\n";
885 else
886 src << "layout(location = 1) patch in mediump " << dataType << " in_te_data0[" << OUTPUT_PATCH_SIZE << "];\n"
887 << "layout(location = " << OUTPUT_PATCH_SIZE * varyingSize[caseDef.dataType] + 1 << ") patch in mediump " << dataType << " in_te_data1[" << OUTPUT_PATCH_SIZE << "];\n";
888
889 src << "\n"
890 << "void main (void)\n"
891 << "{\n"
892 << " highp float x = (gl_TessCoord.x*float(" << xScale << ") + in_te_attr[0]) * 2.0 - 1.0;\n"
893 << " highp float y = gl_TessCoord.y*2.0 - 1.0;\n"
894 << " gl_Position = vec4(x, y, 0.0, 1.0);\n"
895 << " bool ok = true;\n"
896 << " for (int i = 0; i < " << OUTPUT_PATCH_SIZE << "; i++)\n"
897 << " {\n"
898 << " int ref = i + (i + 1) % " << OUTPUT_PATCH_SIZE << ";\n"
899 << " if (in_te_data1[i] != " << dataType << "(ref)) ok = false;\n"
900 << " }\n"
901 << " in_f_color = ok ? vec4(1.0) : vec4(vec3(0.0), 1.0);\n"
902 << "}\n";
903
904 programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
905 }
906
907 // Fragment shader
908 {
909 std::ostringstream src;
910 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
911 << "\n"
912 << "layout(location = 0) in mediump vec4 in_f_color;\n"
913 << "layout(location = 0) out mediump vec4 o_color;\n"
914 << "\n"
915 << "void main (void)\n"
916 << "{\n"
917 << " o_color = in_f_color;\n"
918 << "}\n";
919
920 programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
921 }
922 }
923
test(Context & context,const CaseDefinition caseDef)924 tcu::TestStatus test (Context& context, const CaseDefinition caseDef)
925 {
926 DE_UNREF(caseDef);
927 // Input vertex attribute data
928 const int numPrimitives = 8;
929 std::vector<float> vertexData (INPUT_PATCH_SIZE * numPrimitives, 0.0f);
930 const VkDeviceSize vertexBufferSize = sizeof(float) * vertexData.size();
931
932 for (int i = 0; i < numPrimitives; ++i)
933 vertexData[INPUT_PATCH_SIZE * i] = static_cast<float>(i) / static_cast<float>(numPrimitives);
934
935 tcu::TextureLevel referenceImage;
936 initializeWhiteReferenceImage(referenceImage, RENDER_SIZE, RENDER_SIZE);
937
938 return runTest(context, numPrimitives, INPUT_PATCH_SIZE, OUTPUT_PATCH_SIZE,
939 VK_FORMAT_R32_SFLOAT, &vertexData[0], vertexBufferSize, referenceImage.getAccess());
940 }
941
942 } // CrossInvocation ns
943
944 } // anonymous
945
946 //! These tests correspond to dEQP-GLES31.functional.tessellation.shader_input_output.*
createShaderInputOutputTests(tcu::TestContext & testCtx)947 tcu::TestCaseGroup* createShaderInputOutputTests (tcu::TestContext& testCtx)
948 {
949 de::MovePtr<tcu::TestCaseGroup> group (new tcu::TestCaseGroup(testCtx, "shader_input_output", "Test tessellation control and evaluation shader inputs and outputs"));
950
951 // Patch vertex counts
952 {
953 static const struct
954 {
955 int inPatchSize;
956 int outPatchSize;
957 } patchVertexCountCases[] =
958 {
959 { 5, 10 },
960 { 10, 5 }
961 };
962
963 for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(patchVertexCountCases); caseNdx++)
964 {
965 const int inSize = patchVertexCountCases[caseNdx].inPatchSize;
966 const int outSize = patchVertexCountCases[caseNdx].outPatchSize;
967
968 const std::string caseName = "patch_vertices_" + de::toString(inSize) + "_in_" + de::toString(outSize) + "_out";
969 const PatchVertexCount::CaseDefinition caseDef =
970 {
971 inSize, outSize, "vulkan/data/tessellation/" + caseName + "_ref.png"
972 };
973
974 addFunctionCaseWithPrograms(group.get(), caseName, "Test input and output patch vertex counts",
975 PatchVertexCount::initPrograms, PatchVertexCount::test, caseDef);
976 }
977 }
978
979 // Per patch data
980 {
981 static const PerPatchData::CaseDefinition cases[] =
982 {
983 { 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" },
984 { PerPatchData::CASETYPE_PRIMITIVE_ID_TES, "primitive_id_tes", true, "vulkan/data/tessellation/primitive_id_tes_ref.png", "Read gl_PrimitiveID in TES" },
985 { PerPatchData::CASETYPE_PATCH_VERTICES_IN_TCS, "patch_vertices_in_tcs", false, "", "Read gl_PatchVerticesIn in TCS and pass it as patch output to TES" },
986 { PerPatchData::CASETYPE_PATCH_VERTICES_IN_TES, "patch_vertices_in_tes", false, "", "Read gl_PatchVerticesIn in TES" },
987 { PerPatchData::CASETYPE_TESS_LEVEL_INNER0_TES, "tess_level_inner_0_tes", false, "", "Read gl_TessLevelInner[0] in TES" },
988 { PerPatchData::CASETYPE_TESS_LEVEL_INNER1_TES, "tess_level_inner_1_tes", false, "", "Read gl_TessLevelInner[1] in TES" },
989 { PerPatchData::CASETYPE_TESS_LEVEL_OUTER0_TES, "tess_level_outer_0_tes", false, "", "Read gl_TessLevelOuter[0] in TES" },
990 { PerPatchData::CASETYPE_TESS_LEVEL_OUTER1_TES, "tess_level_outer_1_tes", false, "", "Read gl_TessLevelOuter[1] in TES" },
991 { PerPatchData::CASETYPE_TESS_LEVEL_OUTER2_TES, "tess_level_outer_2_tes", false, "", "Read gl_TessLevelOuter[2] in TES" },
992 { PerPatchData::CASETYPE_TESS_LEVEL_OUTER3_TES, "tess_level_outer_3_tes", false, "", "Read gl_TessLevelOuter[3] in TES" },
993 };
994
995 for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(cases); ++caseNdx)
996 addFunctionCaseWithPrograms(group.get(), cases[caseNdx].caseName, cases[caseNdx].caseDescription,
997 PerPatchData::initPrograms, PerPatchData::test, cases[caseNdx]);
998 }
999
1000 // gl_Position
1001 {
1002 static const struct
1003 {
1004 GLPosition::CaseType type;
1005 std::string caseName;
1006 } cases[] =
1007 {
1008 { GLPosition::CASETYPE_VS_TO_TCS, "gl_position_vs_to_tcs" },
1009 { GLPosition::CASETYPE_TCS_TO_TES, "gl_position_tcs_to_tes" },
1010 { GLPosition::CASETYPE_VS_TO_TCS_TO_TES, "gl_position_vs_to_tcs_to_tes" },
1011 };
1012
1013 for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(cases); ++caseNdx)
1014 addFunctionCaseWithPrograms(group.get(), cases[caseNdx].caseName, "Pass gl_Position between VS and TCS, or between TCS and TES",
1015 GLPosition::initPrograms, GLPosition::test, cases[caseNdx].type);
1016 }
1017
1018 // Barrier
1019 addFunctionCaseWithPrograms(group.get(), "barrier", "Basic barrier usage", Barrier::initPrograms, Barrier::test);
1020
1021 // Cross invocation communication
1022 {
1023 static const struct
1024 {
1025 CrossInvocation::CaseType caseType;
1026 std::string name;
1027 } caseTypes[] =
1028 {
1029 { CrossInvocation::CASETYPE_PER_VERTEX, "cross_invocation_per_vertex" },
1030 { CrossInvocation::CASETYPE_PER_PATCH, "cross_invocation_per_patch" }
1031 };
1032
1033 static const struct
1034 {
1035 CrossInvocation::DataType dataType;
1036 std::string name;
1037 } dataTypes[] =
1038 {
1039 { CrossInvocation::DATATYPE_INT, "int" },
1040 { CrossInvocation::DATATYPE_UINT, "uint" },
1041 { CrossInvocation::DATATYPE_FLOAT, "float" },
1042 { CrossInvocation::DATATYPE_VEC3, "vec3" },
1043 { CrossInvocation::DATATYPE_VEC4, "vec4" },
1044 { CrossInvocation::DATATYPE_MAT4X3, "mat4x3" }
1045 };
1046
1047 for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(caseTypes); ++caseNdx)
1048 for (int dataTypeNdx = 0; dataTypeNdx < DE_LENGTH_OF_ARRAY(dataTypes); ++dataTypeNdx)
1049 {
1050 std::string testName = caseTypes[caseNdx].name + "_" + dataTypes[dataTypeNdx].name;
1051 CrossInvocation::CaseDefinition caseDef = { caseTypes[caseNdx].caseType, dataTypes[dataTypeNdx].dataType };
1052
1053 addFunctionCaseWithPrograms(group.get(), testName, "Write output varyings from multiple invocations.",
1054 CrossInvocation::initPrograms, CrossInvocation::test, caseDef);
1055 }
1056 }
1057
1058 return group.release();
1059 }
1060
1061 } // tessellation
1062 } // vkt
1063
