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 Geometry Interaction - Grid render (limits, scatter)
23 *//*--------------------------------------------------------------------*/
24
25 #include "vktTessellationGeometryGridRenderTests.hpp"
26 #include "vktTestCaseUtil.hpp"
27 #include "vktTessellationUtil.hpp"
28
29 #include "tcuTestLog.hpp"
30 #include "tcuTextureUtil.hpp"
31 #include "tcuSurface.hpp"
32 #include "tcuRGBA.hpp"
33
34 #include "vkDefs.hpp"
35 #include "vkQueryUtil.hpp"
36 #include "vkBuilderUtil.hpp"
37 #include "vkTypeUtil.hpp"
38 #include "vkImageUtil.hpp"
39
40 #include "deUniquePtr.hpp"
41
42 #include <string>
43 #include <vector>
44
45 namespace vkt
46 {
47 namespace tessellation
48 {
49
50 using namespace vk;
51
52 namespace
53 {
54
55 enum Constants
56 {
57 RENDER_SIZE = 256,
58 };
59
60 enum FlagBits
61 {
62 FLAG_TESSELLATION_MAX_SPEC = 1u << 0,
63 FLAG_GEOMETRY_MAX_SPEC = 1u << 1,
64 FLAG_GEOMETRY_INVOCATIONS_MAX_SPEC = 1u << 2,
65
66 FLAG_GEOMETRY_SCATTER_INSTANCES = 1u << 3,
67 FLAG_GEOMETRY_SCATTER_PRIMITIVES = 1u << 4,
68 FLAG_GEOMETRY_SEPARATE_PRIMITIVES = 1u << 5, //!< if set, geometry shader outputs separate grid cells and not continuous slices
69 FLAG_GEOMETRY_SCATTER_LAYERS = 1u << 6,
70 };
71 typedef deUint32 Flags;
72
73 class GridRenderTestCase : public TestCase
74 {
75 public:
76 void initPrograms (vk::SourceCollections& programCollection) const;
77 TestInstance* createInstance (Context& context) const;
78
79 GridRenderTestCase (tcu::TestContext& testCtx, const std::string& name, const std::string& description, const Flags flags);
80
81 private:
82 const Flags m_flags;
83 const int m_tessGenLevel;
84 const int m_numGeometryInvocations;
85 const int m_numLayers;
86 int m_numGeometryPrimitivesPerInvocation;
87 };
88
GridRenderTestCase(tcu::TestContext & testCtx,const std::string & name,const std::string & description,const Flags flags)89 GridRenderTestCase::GridRenderTestCase (tcu::TestContext& testCtx, const std::string& name, const std::string& description, const Flags flags)
90 : TestCase (testCtx, name, description)
91 , m_flags (flags)
92 , m_tessGenLevel ((m_flags & FLAG_TESSELLATION_MAX_SPEC) ? 64 : 5)
93 , m_numGeometryInvocations ((m_flags & FLAG_GEOMETRY_INVOCATIONS_MAX_SPEC) ? 32 : 4)
94 , m_numLayers ((m_flags & FLAG_GEOMETRY_SCATTER_LAYERS) ? 8 : 1)
95 {
96 DE_ASSERT(((flags & (FLAG_GEOMETRY_SCATTER_PRIMITIVES | FLAG_GEOMETRY_SCATTER_LAYERS)) != 0) == ((flags & FLAG_GEOMETRY_SEPARATE_PRIMITIVES) != 0));
97
98 testCtx.getLog()
99 << tcu::TestLog::Message
100 << "Testing tessellation and geometry shaders that output a large number of primitives.\n"
101 << getDescription()
102 << tcu::TestLog::EndMessage;
103
104 if (m_flags & FLAG_GEOMETRY_SCATTER_LAYERS)
105 m_testCtx.getLog() << tcu::TestLog::Message << "Rendering to 2d texture array, numLayers = " << m_numLayers << tcu::TestLog::EndMessage;
106
107 m_testCtx.getLog()
108 << tcu::TestLog::Message
109 << "Tessellation level: " << m_tessGenLevel << ", mode = quad.\n"
110 << "\tEach input patch produces " << (m_tessGenLevel*m_tessGenLevel) << " (" << (m_tessGenLevel*m_tessGenLevel*2) << " triangles)\n"
111 << tcu::TestLog::EndMessage;
112
113 int geometryOutputComponents = 0;
114 int geometryOutputVertices = 0;
115 int geometryTotalOutputComponents = 0;
116
117 if (m_flags & FLAG_GEOMETRY_MAX_SPEC)
118 {
119 m_testCtx.getLog() << tcu::TestLog::Message << "Using geometry shader minimum maximum output limits." << tcu::TestLog::EndMessage;
120
121 geometryOutputComponents = 64;
122 geometryOutputVertices = 256;
123 geometryTotalOutputComponents = 1024;
124 }
125 else
126 {
127 geometryOutputComponents = 64;
128 geometryOutputVertices = 16;
129 geometryTotalOutputComponents = 1024;
130 }
131
132 if ((m_flags & FLAG_GEOMETRY_MAX_SPEC) || (m_flags & FLAG_GEOMETRY_INVOCATIONS_MAX_SPEC))
133 {
134 tcu::MessageBuilder msg(&m_testCtx.getLog());
135
136 msg << "Geometry shader, targeting following limits:\n";
137
138 if (m_flags & FLAG_GEOMETRY_MAX_SPEC)
139 msg << "\tmaxGeometryOutputComponents = " << geometryOutputComponents << "\n"
140 << "\tmaxGeometryOutputVertices = " << geometryOutputVertices << "\n"
141 << "\tmaxGeometryTotalOutputComponents = " << geometryTotalOutputComponents << "\n";
142
143 if (m_flags & FLAG_GEOMETRY_INVOCATIONS_MAX_SPEC)
144 msg << "\tmaxGeometryShaderInvocations = " << m_numGeometryInvocations;
145
146 msg << tcu::TestLog::EndMessage;
147 }
148
149 const bool separatePrimitives = (m_flags & FLAG_GEOMETRY_SEPARATE_PRIMITIVES) != 0;
150 const int numComponentsPerVertex = 8; // vec4 pos, vec4 color
151 int numVerticesPerInvocation = 0;
152 int geometryVerticesPerPrimitive = 0;
153 int geometryPrimitivesOutPerPrimitive = 0;
154
155 if (separatePrimitives)
156 {
157 const int numComponentLimit = geometryTotalOutputComponents / (4 * numComponentsPerVertex);
158 const int numOutputLimit = geometryOutputVertices / 4;
159
160 m_numGeometryPrimitivesPerInvocation = de::min(numComponentLimit, numOutputLimit);
161 numVerticesPerInvocation = m_numGeometryPrimitivesPerInvocation * 4;
162 }
163 else
164 {
165 // If FLAG_GEOMETRY_SEPARATE_PRIMITIVES is not set, geometry shader fills a rectangle area in slices.
166 // Each slice is a triangle strip and is generated by a single shader invocation.
167 // One slice with 4 segment ends (nodes) and 3 segments:
168 // .__.__.__.
169 // |\ |\ |\ |
170 // |_\|_\|_\|
171
172 const int numSliceNodesComponentLimit = geometryTotalOutputComponents / (2 * numComponentsPerVertex); // each node 2 vertices
173 const int numSliceNodesOutputLimit = geometryOutputVertices / 2; // each node 2 vertices
174 const int numSliceNodes = de::min(numSliceNodesComponentLimit, numSliceNodesOutputLimit);
175
176 numVerticesPerInvocation = numSliceNodes * 2;
177 m_numGeometryPrimitivesPerInvocation = (numSliceNodes - 1) * 2;
178 }
179
180 geometryVerticesPerPrimitive = numVerticesPerInvocation * m_numGeometryInvocations;
181 geometryPrimitivesOutPerPrimitive = m_numGeometryPrimitivesPerInvocation * m_numGeometryInvocations;
182
183 m_testCtx.getLog()
184 << tcu::TestLog::Message
185 << "Geometry shader:\n"
186 << "\tTotal output vertex count per invocation: " << numVerticesPerInvocation << "\n"
187 << "\tTotal output primitive count per invocation: " << m_numGeometryPrimitivesPerInvocation << "\n"
188 << "\tNumber of invocations per primitive: " << m_numGeometryInvocations << "\n"
189 << "\tTotal output vertex count per input primitive: " << geometryVerticesPerPrimitive << "\n"
190 << "\tTotal output primitive count per input primitive: " << geometryPrimitivesOutPerPrimitive << "\n"
191 << tcu::TestLog::EndMessage;
192
193 m_testCtx.getLog()
194 << tcu::TestLog::Message
195 << "Program:\n"
196 << "\tTotal program output vertices count per input patch: " << (m_tessGenLevel*m_tessGenLevel*2 * geometryVerticesPerPrimitive) << "\n"
197 << "\tTotal program output primitive count per input patch: " << (m_tessGenLevel*m_tessGenLevel*2 * geometryPrimitivesOutPerPrimitive) << "\n"
198 << tcu::TestLog::EndMessage;
199 }
200
initPrograms(SourceCollections & programCollection) const201 void GridRenderTestCase::initPrograms (SourceCollections& programCollection) const
202 {
203 // Vertex shader
204 {
205 std::ostringstream src;
206 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
207 << "\n"
208 << "void main (void)\n"
209 << "{\n"
210 << " gl_Position = vec4(0.0, 0.0, 0.0, 1.0);\n"
211 << "}\n";
212
213 programCollection.glslSources.add("vert") << glu::VertexSource(src.str());
214 }
215
216 // Fragment shader
217 {
218 std::ostringstream src;
219 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
220 << "layout(location = 0) flat in highp vec4 v_color;\n"
221 << "layout(location = 0) out mediump vec4 fragColor;\n"
222 << "\n"
223 << "void main (void)\n"
224 << "{\n"
225 << " fragColor = v_color;\n"
226 << "}\n";
227
228 programCollection.glslSources.add("frag") << glu::FragmentSource(src.str());
229 }
230
231 // Tessellation control
232 {
233 std::ostringstream src;
234 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
235 "#extension GL_EXT_tessellation_shader : require\n"
236 "layout(vertices = 1) out;\n"
237 "\n"
238 "void main (void)\n"
239 "{\n"
240 " gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;\n"
241 " gl_TessLevelInner[0] = float(" << m_tessGenLevel << ");\n"
242 " gl_TessLevelInner[1] = float(" << m_tessGenLevel << ");\n"
243 " gl_TessLevelOuter[0] = float(" << m_tessGenLevel << ");\n"
244 " gl_TessLevelOuter[1] = float(" << m_tessGenLevel << ");\n"
245 " gl_TessLevelOuter[2] = float(" << m_tessGenLevel << ");\n"
246 " gl_TessLevelOuter[3] = float(" << m_tessGenLevel << ");\n"
247 "}\n";
248
249 programCollection.glslSources.add("tesc") << glu::TessellationControlSource(src.str());
250 }
251
252 // Tessellation evaluation
253 {
254 std::ostringstream src;
255 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
256 << "#extension GL_EXT_tessellation_shader : require\n"
257 << "layout(quads) in;\n"
258 << "\n"
259 << "layout(location = 0) out mediump ivec2 v_tessellationGridPosition;\n"
260 << "\n"
261 << "// note: No need to use precise gl_Position since position does not depend on order\n"
262 << "void main (void)\n"
263 << "{\n";
264
265 if (m_flags & (FLAG_GEOMETRY_SCATTER_INSTANCES | FLAG_GEOMETRY_SCATTER_PRIMITIVES | FLAG_GEOMETRY_SCATTER_LAYERS))
266 src << " // Cover only a small area in a corner. The area will be expanded in geometry shader to cover whole viewport\n"
267 << " gl_Position = vec4(gl_TessCoord.x * 0.3 - 1.0, gl_TessCoord.y * 0.3 - 1.0, 0.0, 1.0);\n";
268 else
269 src << " // Fill the whole viewport\n"
270 << " gl_Position = vec4(gl_TessCoord.x * 2.0 - 1.0, gl_TessCoord.y * 2.0 - 1.0, 0.0, 1.0);\n";
271
272 src << " // Calculate position in tessellation grid\n"
273 << " v_tessellationGridPosition = ivec2(round(gl_TessCoord.xy * float(" << m_tessGenLevel << ")));\n"
274 << "}\n";
275
276 programCollection.glslSources.add("tese") << glu::TessellationEvaluationSource(src.str());
277 }
278
279 // Geometry shader
280 {
281 const int numInvocations = m_numGeometryInvocations;
282 const int numPrimitives = m_numGeometryPrimitivesPerInvocation;
283
284 std::ostringstream src;
285
286 src << glu::getGLSLVersionDeclaration(glu::GLSL_VERSION_310_ES) << "\n"
287 << "#extension GL_EXT_geometry_shader : require\n"
288 << "layout(triangles, invocations = " << numInvocations << ") in;\n"
289 << "layout(triangle_strip, max_vertices = " << ((m_flags & FLAG_GEOMETRY_SEPARATE_PRIMITIVES) ? (4 * numPrimitives) : (numPrimitives + 2)) << ") out;\n"
290 << "\n"
291 << "layout(location = 0) in mediump ivec2 v_tessellationGridPosition[];\n"
292 << "layout(location = 0) flat out highp vec4 v_color;\n"
293 << "\n"
294 << "void main (void)\n"
295 << "{\n"
296 << " const float equalThreshold = 0.001;\n"
297 << " const float gapOffset = 0.0001; // subdivision performed by the geometry shader might produce gaps. Fill potential gaps by enlarging the output slice a little.\n"
298 << "\n"
299 << " // Input triangle is generated from an axis-aligned rectangle by splitting it in half\n"
300 << " // Original rectangle can be found by finding the bounding AABB of the triangle\n"
301 << " vec4 aabb = vec4(min(gl_in[0].gl_Position.x, min(gl_in[1].gl_Position.x, gl_in[2].gl_Position.x)),\n"
302 << " min(gl_in[0].gl_Position.y, min(gl_in[1].gl_Position.y, gl_in[2].gl_Position.y)),\n"
303 << " max(gl_in[0].gl_Position.x, max(gl_in[1].gl_Position.x, gl_in[2].gl_Position.x)),\n"
304 << " max(gl_in[0].gl_Position.y, max(gl_in[1].gl_Position.y, gl_in[2].gl_Position.y)));\n"
305 << "\n"
306 << " // Location in tessellation grid\n"
307 << " ivec2 gridPosition = ivec2(min(v_tessellationGridPosition[0], min(v_tessellationGridPosition[1], v_tessellationGridPosition[2])));\n"
308 << "\n"
309 << " // Which triangle of the two that split the grid cell\n"
310 << " int numVerticesOnBottomEdge = 0;\n"
311 << " for (int ndx = 0; ndx < 3; ++ndx)\n"
312 << " if (abs(gl_in[ndx].gl_Position.y - aabb.w) < equalThreshold)\n"
313 << " ++numVerticesOnBottomEdge;\n"
314 << " bool isBottomTriangle = numVerticesOnBottomEdge == 2;\n"
315 << "\n";
316
317 if (m_flags & FLAG_GEOMETRY_SCATTER_PRIMITIVES)
318 {
319 // scatter primitives
320 src << " // Draw grid cells\n"
321 << " int inputTriangleNdx = gl_InvocationID * 2 + ((isBottomTriangle) ? (1) : (0));\n"
322 << " for (int ndx = 0; ndx < " << numPrimitives << "; ++ndx)\n"
323 << " {\n"
324 << " ivec2 dstGridSize = ivec2(" << m_tessGenLevel << " * " << numPrimitives << ", 2 * " << m_tessGenLevel << " * " << numInvocations << ");\n"
325 << " ivec2 dstGridNdx = ivec2(" << m_tessGenLevel << " * ndx + gridPosition.x, " << m_tessGenLevel << " * inputTriangleNdx + 2 * gridPosition.y + ndx * 127) % dstGridSize;\n"
326 << " vec4 dstArea;\n"
327 << " dstArea.x = float(dstGridNdx.x) / float(dstGridSize.x) * 2.0 - 1.0 - gapOffset;\n"
328 << " dstArea.y = float(dstGridNdx.y) / float(dstGridSize.y) * 2.0 - 1.0 - gapOffset;\n"
329 << " dstArea.z = float(dstGridNdx.x+1) / float(dstGridSize.x) * 2.0 - 1.0 + gapOffset;\n"
330 << " dstArea.w = float(dstGridNdx.y+1) / float(dstGridSize.y) * 2.0 - 1.0 + gapOffset;\n"
331 << "\n"
332 << " vec4 green = vec4(0.0, 1.0, 0.0, 1.0);\n"
333 << " vec4 yellow = vec4(1.0, 1.0, 0.0, 1.0);\n"
334 << " vec4 outputColor = (((dstGridNdx.y + dstGridNdx.x) % 2) == 0) ? (green) : (yellow);\n"
335 << "\n"
336 << " gl_Position = vec4(dstArea.x, dstArea.y, 0.0, 1.0);\n"
337 << " v_color = outputColor;\n"
338 << " EmitVertex();\n"
339 << "\n"
340 << " gl_Position = vec4(dstArea.x, dstArea.w, 0.0, 1.0);\n"
341 << " v_color = outputColor;\n"
342 << " EmitVertex();\n"
343 << "\n"
344 << " gl_Position = vec4(dstArea.z, dstArea.y, 0.0, 1.0);\n"
345 << " v_color = outputColor;\n"
346 << " EmitVertex();\n"
347 << "\n"
348 << " gl_Position = vec4(dstArea.z, dstArea.w, 0.0, 1.0);\n"
349 << " v_color = outputColor;\n"
350 << " EmitVertex();\n"
351 << " EndPrimitive();\n"
352 << " }\n";
353 }
354 else if (m_flags & FLAG_GEOMETRY_SCATTER_LAYERS)
355 {
356 // Number of subrectangle instances = num layers
357 DE_ASSERT(m_numLayers == numInvocations * 2);
358
359 src << " // Draw grid cells, send each primitive to a separate layer\n"
360 << " int baseLayer = gl_InvocationID * 2 + ((isBottomTriangle) ? (1) : (0));\n"
361 << " for (int ndx = 0; ndx < " << numPrimitives << "; ++ndx)\n"
362 << " {\n"
363 << " ivec2 dstGridSize = ivec2(" << m_tessGenLevel << " * " << numPrimitives << ", " << m_tessGenLevel << ");\n"
364 << " ivec2 dstGridNdx = ivec2((gridPosition.x * " << numPrimitives << " * 7 + ndx)*13, (gridPosition.y * 127 + ndx) * 19) % dstGridSize;\n"
365 << " vec4 dstArea;\n"
366 << " dstArea.x = float(dstGridNdx.x) / float(dstGridSize.x) * 2.0 - 1.0 - gapOffset;\n"
367 << " dstArea.y = float(dstGridNdx.y) / float(dstGridSize.y) * 2.0 - 1.0 - gapOffset;\n"
368 << " dstArea.z = float(dstGridNdx.x+1) / float(dstGridSize.x) * 2.0 - 1.0 + gapOffset;\n"
369 << " dstArea.w = float(dstGridNdx.y+1) / float(dstGridSize.y) * 2.0 - 1.0 + gapOffset;\n"
370 << "\n"
371 << " vec4 green = vec4(0.0, 1.0, 0.0, 1.0);\n"
372 << " vec4 yellow = vec4(1.0, 1.0, 0.0, 1.0);\n"
373 << " vec4 outputColor = (((dstGridNdx.y + dstGridNdx.x) % 2) == 0) ? (green) : (yellow);\n"
374 << "\n"
375 << " gl_Position = vec4(dstArea.x, dstArea.y, 0.0, 1.0);\n"
376 << " v_color = outputColor;\n"
377 << " gl_Layer = ((baseLayer + ndx) * 11) % " << m_numLayers << ";\n"
378 << " EmitVertex();\n"
379 << "\n"
380 << " gl_Position = vec4(dstArea.x, dstArea.w, 0.0, 1.0);\n"
381 << " v_color = outputColor;\n"
382 << " gl_Layer = ((baseLayer + ndx) * 11) % " << m_numLayers << ";\n"
383 << " EmitVertex();\n"
384 << "\n"
385 << " gl_Position = vec4(dstArea.z, dstArea.y, 0.0, 1.0);\n"
386 << " v_color = outputColor;\n"
387 << " gl_Layer = ((baseLayer + ndx) * 11) % " << m_numLayers << ";\n"
388 << " EmitVertex();\n"
389 << "\n"
390 << " gl_Position = vec4(dstArea.z, dstArea.w, 0.0, 1.0);\n"
391 << " v_color = outputColor;\n"
392 << " gl_Layer = ((baseLayer + ndx) * 11) % " << m_numLayers << ";\n"
393 << " EmitVertex();\n"
394 << " EndPrimitive();\n"
395 << " }\n";
396 }
397 else
398 {
399 if (m_flags & FLAG_GEOMETRY_SCATTER_INSTANCES)
400 {
401 src << " // Scatter slices\n"
402 << " int inputTriangleNdx = gl_InvocationID * 2 + ((isBottomTriangle) ? (1) : (0));\n"
403 << " ivec2 srcSliceNdx = ivec2(gridPosition.x, gridPosition.y * " << (numInvocations*2) << " + inputTriangleNdx);\n"
404 << " ivec2 dstSliceNdx = ivec2(7 * srcSliceNdx.x, 127 * srcSliceNdx.y) % ivec2(" << m_tessGenLevel << ", " << m_tessGenLevel << " * " << (numInvocations*2) << ");\n"
405 << "\n"
406 << " // Draw slice to the dstSlice slot\n"
407 << " vec4 outputSliceArea;\n"
408 << " outputSliceArea.x = float(dstSliceNdx.x) / float(" << m_tessGenLevel << ") * 2.0 - 1.0 - gapOffset;\n"
409 << " outputSliceArea.y = float(dstSliceNdx.y) / float(" << (m_tessGenLevel * numInvocations * 2) << ") * 2.0 - 1.0 - gapOffset;\n"
410 << " outputSliceArea.z = float(dstSliceNdx.x+1) / float(" << m_tessGenLevel << ") * 2.0 - 1.0 + gapOffset;\n"
411 << " outputSliceArea.w = float(dstSliceNdx.y+1) / float(" << (m_tessGenLevel * numInvocations * 2) << ") * 2.0 - 1.0 + gapOffset;\n";
412 }
413 else
414 {
415 src << " // Fill the input area with slices\n"
416 << " // Upper triangle produces slices only to the upper half of the quad and vice-versa\n"
417 << " float triangleOffset = (isBottomTriangle) ? ((aabb.w + aabb.y) / 2.0) : (aabb.y);\n"
418 << " // Each slice is a invocation\n"
419 << " float sliceHeight = (aabb.w - aabb.y) / float(2 * " << numInvocations << ");\n"
420 << " float invocationOffset = float(gl_InvocationID) * sliceHeight;\n"
421 << "\n"
422 << " vec4 outputSliceArea;\n"
423 << " outputSliceArea.x = aabb.x - gapOffset;\n"
424 << " outputSliceArea.y = triangleOffset + invocationOffset - gapOffset;\n"
425 << " outputSliceArea.z = aabb.z + gapOffset;\n"
426 << " outputSliceArea.w = triangleOffset + invocationOffset + sliceHeight + gapOffset;\n";
427 }
428
429 src << "\n"
430 << " // Draw slice\n"
431 << " for (int ndx = 0; ndx < " << ((numPrimitives+2)/2) << "; ++ndx)\n"
432 << " {\n"
433 << " vec4 green = vec4(0.0, 1.0, 0.0, 1.0);\n"
434 << " vec4 yellow = vec4(1.0, 1.0, 0.0, 1.0);\n"
435 << " vec4 outputColor = (((gl_InvocationID + ndx) % 2) == 0) ? (green) : (yellow);\n"
436 << " float xpos = mix(outputSliceArea.x, outputSliceArea.z, float(ndx) / float(" << (numPrimitives/2) << "));\n"
437 << "\n"
438 << " gl_Position = vec4(xpos, outputSliceArea.y, 0.0, 1.0);\n"
439 << " v_color = outputColor;\n"
440 << " EmitVertex();\n"
441 << "\n"
442 << " gl_Position = vec4(xpos, outputSliceArea.w, 0.0, 1.0);\n"
443 << " v_color = outputColor;\n"
444 << " EmitVertex();\n"
445 << " }\n";
446 }
447
448 src << "}\n";
449
450 programCollection.glslSources.add("geom") << glu::GeometrySource(src.str());
451 }
452 }
453
454 class GridRenderTestInstance : public TestInstance
455 {
456 public:
457 struct Params
458 {
459 Flags flags;
460 int numLayers;
461
Paramsvkt::tessellation::__anon347793750111::GridRenderTestInstance::Params462 Params (void) : flags(), numLayers() {}
463 };
GridRenderTestInstance(Context & context,const Params & params)464 GridRenderTestInstance (Context& context, const Params& params) : TestInstance(context), m_params(params) {}
465 tcu::TestStatus iterate (void);
466
467 private:
468 Params m_params;
469 };
470
createInstance(Context & context) const471 TestInstance* GridRenderTestCase::createInstance (Context& context) const
472 {
473 GridRenderTestInstance::Params params;
474
475 params.flags = m_flags;
476 params.numLayers = m_numLayers;
477
478 return new GridRenderTestInstance(context, params);
479 }
480
verifyResultLayer(tcu::TestLog & log,const tcu::ConstPixelBufferAccess & image,const int layerNdx)481 bool verifyResultLayer (tcu::TestLog& log, const tcu::ConstPixelBufferAccess& image, const int layerNdx)
482 {
483 tcu::Surface errorMask (image.getWidth(), image.getHeight());
484 bool foundError = false;
485
486 tcu::clear(errorMask.getAccess(), tcu::Vec4(0.0f, 1.0f, 0.0f, 1.0f));
487
488 log << tcu::TestLog::Message << "Verifying output layer " << layerNdx << tcu::TestLog::EndMessage;
489
490 for (int y = 0; y < image.getHeight(); ++y)
491 for (int x = 0; x < image.getWidth(); ++x)
492 {
493 const int threshold = 8;
494 const tcu::RGBA color (image.getPixel(x, y));
495
496 // Color must be a linear combination of green and yellow
497 if (color.getGreen() < 255 - threshold || color.getBlue() > threshold)
498 {
499 errorMask.setPixel(x, y, tcu::RGBA::red());
500 foundError = true;
501 }
502 }
503
504 if (!foundError)
505 {
506 log << tcu::TestLog::Message << "Image valid." << tcu::TestLog::EndMessage
507 << tcu::TestLog::ImageSet("ImageVerification", "Image verification")
508 << tcu::TestLog::Image("Result", "Rendered result", image)
509 << tcu::TestLog::EndImageSet;
510 return true;
511 }
512 else
513 {
514 log << tcu::TestLog::Message << "Image verification failed, found invalid pixels." << tcu::TestLog::EndMessage
515 << tcu::TestLog::ImageSet("ImageVerification", "Image verification")
516 << tcu::TestLog::Image("Result", "Rendered result", image)
517 << tcu::TestLog::Image("ErrorMask", "Error mask", errorMask.getAccess())
518 << tcu::TestLog::EndImageSet;
519 return false;
520 }
521 }
522
iterate(void)523 tcu::TestStatus GridRenderTestInstance::iterate (void)
524 {
525 requireFeatures(m_context.getInstanceInterface(), m_context.getPhysicalDevice(), FEATURE_TESSELLATION_SHADER | FEATURE_GEOMETRY_SHADER);
526
527 m_context.getTestContext().getLog()
528 << tcu::TestLog::Message
529 << "Rendering single point at the origin. Expecting yellow and green colored grid-like image. (High-frequency grid may appear unicolored)."
530 << tcu::TestLog::EndMessage;
531
532 const DeviceInterface& vk = m_context.getDeviceInterface();
533 const VkDevice device = m_context.getDevice();
534 const VkQueue queue = m_context.getUniversalQueue();
535 const deUint32 queueFamilyIndex = m_context.getUniversalQueueFamilyIndex();
536 Allocator& allocator = m_context.getDefaultAllocator();
537
538 // Color attachment
539
540 const tcu::IVec2 renderSize = tcu::IVec2(RENDER_SIZE, RENDER_SIZE);
541 const VkFormat colorFormat = VK_FORMAT_R8G8B8A8_UNORM;
542 const VkImageSubresourceRange colorImageAllLayersRange = makeImageSubresourceRange(VK_IMAGE_ASPECT_COLOR_BIT, 0u, 1u, 0u, m_params.numLayers);
543 const VkImageCreateInfo colorImageCreateInfo = makeImageCreateInfo(renderSize, colorFormat, VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT, m_params.numLayers);
544 const VkImageViewType colorAttachmentViewType = (m_params.numLayers == 1 ? VK_IMAGE_VIEW_TYPE_2D : VK_IMAGE_VIEW_TYPE_2D_ARRAY);
545 const Image colorAttachmentImage (vk, device, allocator, colorImageCreateInfo, MemoryRequirement::Any);
546
547 // Color output buffer: image will be copied here for verification (big enough for all layers).
548
549 const VkDeviceSize colorBufferSizeBytes = renderSize.x()*renderSize.y() * m_params.numLayers * tcu::getPixelSize(mapVkFormat(colorFormat));
550 const Buffer colorBuffer (vk, device, allocator, makeBufferCreateInfo(colorBufferSizeBytes, VK_BUFFER_USAGE_TRANSFER_DST_BIT), MemoryRequirement::HostVisible);
551
552 // Pipeline: no vertex input attributes nor descriptors.
553
554 const Unique<VkImageView> colorAttachmentView(makeImageView (vk, device, *colorAttachmentImage, colorAttachmentViewType, colorFormat, colorImageAllLayersRange));
555 const Unique<VkRenderPass> renderPass (makeRenderPass (vk, device, colorFormat));
556 const Unique<VkFramebuffer> framebuffer (makeFramebuffer (vk, device, *renderPass, *colorAttachmentView, renderSize.x(), renderSize.y(), m_params.numLayers));
557 const Unique<VkPipelineLayout> pipelineLayout (makePipelineLayoutWithoutDescriptors(vk, device));
558 const Unique<VkCommandPool> cmdPool (makeCommandPool (vk, device, queueFamilyIndex));
559 const Unique<VkCommandBuffer> cmdBuffer (makeCommandBuffer (vk, device, *cmdPool));
560
561 const Unique<VkPipeline> pipeline (GraphicsPipelineBuilder()
562 .setRenderSize (renderSize)
563 .setShader (vk, device, VK_SHADER_STAGE_VERTEX_BIT, m_context.getBinaryCollection().get("vert"), DE_NULL)
564 .setShader (vk, device, VK_SHADER_STAGE_FRAGMENT_BIT, m_context.getBinaryCollection().get("frag"), DE_NULL)
565 .setShader (vk, device, VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT, m_context.getBinaryCollection().get("tesc"), DE_NULL)
566 .setShader (vk, device, VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT, m_context.getBinaryCollection().get("tese"), DE_NULL)
567 .setShader (vk, device, VK_SHADER_STAGE_GEOMETRY_BIT, m_context.getBinaryCollection().get("geom"), DE_NULL)
568 .build (vk, device, *pipelineLayout, *renderPass));
569
570 beginCommandBuffer(vk, *cmdBuffer);
571
572 // Change color attachment image layout
573 {
574 const VkImageMemoryBarrier colorAttachmentLayoutBarrier = makeImageMemoryBarrier(
575 (VkAccessFlags)0, VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
576 VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
577 *colorAttachmentImage, colorImageAllLayersRange);
578
579 vk.cmdPipelineBarrier(*cmdBuffer, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0u,
580 0u, DE_NULL, 0u, DE_NULL, 1u, &colorAttachmentLayoutBarrier);
581 }
582
583 // Begin render pass
584 {
585 const VkRect2D renderArea = {
586 makeOffset2D(0, 0),
587 makeExtent2D(renderSize.x(), renderSize.y()),
588 };
589 const tcu::Vec4 clearColor(0.0f, 0.0f, 0.0f, 1.0f);
590
591 beginRenderPass(vk, *cmdBuffer, *renderPass, *framebuffer, renderArea, clearColor);
592 }
593
594 vk.cmdBindPipeline(*cmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, *pipeline);
595
596 vk.cmdDraw(*cmdBuffer, 1u, 1u, 0u, 0u);
597 endRenderPass(vk, *cmdBuffer);
598
599 // Copy render result to a host-visible buffer
600 {
601 const VkImageMemoryBarrier colorAttachmentPreCopyBarrier = makeImageMemoryBarrier(
602 VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT, VK_ACCESS_TRANSFER_READ_BIT,
603 VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
604 *colorAttachmentImage, colorImageAllLayersRange);
605
606 vk.cmdPipelineBarrier(*cmdBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0u,
607 0u, DE_NULL, 0u, DE_NULL, 1u, &colorAttachmentPreCopyBarrier);
608 }
609 {
610 const VkImageSubresourceLayers subresourceLayers = makeImageSubresourceLayers(VK_IMAGE_ASPECT_COLOR_BIT, 0u, 0u, m_params.numLayers);
611 const VkBufferImageCopy copyRegion = makeBufferImageCopy(makeExtent3D(renderSize.x(), renderSize.y(), 1), subresourceLayers);
612 vk.cmdCopyImageToBuffer(*cmdBuffer, *colorAttachmentImage, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, *colorBuffer, 1u, ©Region);
613 }
614 {
615 const VkBufferMemoryBarrier postCopyBarrier = makeBufferMemoryBarrier(
616 VK_ACCESS_TRANSFER_WRITE_BIT, VK_ACCESS_HOST_READ_BIT, *colorBuffer, 0ull, colorBufferSizeBytes);
617
618 vk.cmdPipelineBarrier(*cmdBuffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_HOST_BIT, 0u,
619 0u, DE_NULL, 1u, &postCopyBarrier, 0u, DE_NULL);
620 }
621
622 endCommandBuffer(vk, *cmdBuffer);
623 submitCommandsAndWait(vk, device, queue, *cmdBuffer);
624
625 // Verify results
626 {
627 const Allocation& alloc = colorBuffer.getAllocation();
628 invalidateMappedMemoryRange(vk, device, alloc.getMemory(), alloc.getOffset(), colorBufferSizeBytes);
629
630 const tcu::ConstPixelBufferAccess imageAllLayers(mapVkFormat(colorFormat), renderSize.x(), renderSize.y(), m_params.numLayers, alloc.getHostPtr());
631
632 bool allOk = true;
633 for (int ndx = 0; ndx < m_params.numLayers; ++ndx)
634 allOk = allOk && verifyResultLayer(m_context.getTestContext().getLog(),
635 tcu::getSubregion(imageAllLayers, 0, 0, ndx, renderSize.x(), renderSize.y(), 1),
636 ndx);
637
638 return (allOk ? tcu::TestStatus::pass("OK") : tcu::TestStatus::fail("Image comparison failed"));
639 }
640 }
641
642 struct TestCaseDescription
643 {
644 const char* name;
645 const char* desc;
646 Flags flags;
647 };
648
649 } // anonymous
650
651 //! Ported from dEQP-GLES31.functional.tessellation_geometry_interaction.render.limits.*
652 //! \note Tests that check implementation defined limits were omitted, because they rely on runtime shader source generation
653 //! (e.g. changing the number of vertices output from geometry shader). CTS currently doesn't support that,
654 //! because some platforms require precompiled shaders.
createGeometryGridRenderLimitsTests(tcu::TestContext & testCtx)655 tcu::TestCaseGroup* createGeometryGridRenderLimitsTests (tcu::TestContext& testCtx)
656 {
657 de::MovePtr<tcu::TestCaseGroup> group (new tcu::TestCaseGroup(testCtx, "limits", "Render with properties near their limits"));
658
659 static const TestCaseDescription cases[] =
660 {
661 {
662 "output_required_max_tessellation",
663 "Minimum maximum tessellation level",
664 FLAG_TESSELLATION_MAX_SPEC
665 },
666 {
667 "output_required_max_geometry",
668 "Output minimum maximum number of vertices the geometry shader",
669 FLAG_GEOMETRY_MAX_SPEC
670 },
671 {
672 "output_required_max_invocations",
673 "Minimum maximum number of geometry shader invocations",
674 FLAG_GEOMETRY_INVOCATIONS_MAX_SPEC
675 },
676 };
677
678 for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(cases); ++ndx)
679 group->addChild(new GridRenderTestCase(testCtx, cases[ndx].name, cases[ndx].desc, cases[ndx].flags));
680
681 return group.release();
682 }
683
684 //! Ported from dEQP-GLES31.functional.tessellation_geometry_interaction.render.scatter.*
createGeometryGridRenderScatterTests(tcu::TestContext & testCtx)685 tcu::TestCaseGroup* createGeometryGridRenderScatterTests (tcu::TestContext& testCtx)
686 {
687 de::MovePtr<tcu::TestCaseGroup> group (new tcu::TestCaseGroup(testCtx, "scatter", "Scatter output primitives"));
688
689 static const TestCaseDescription cases[] =
690 {
691 {
692 "geometry_scatter_instances",
693 "Each geometry shader instance outputs its primitives far from other instances of the same execution",
694 FLAG_GEOMETRY_SCATTER_INSTANCES
695 },
696 {
697 "geometry_scatter_primitives",
698 "Each geometry shader instance outputs its primitives far from other primitives of the same instance",
699 FLAG_GEOMETRY_SCATTER_PRIMITIVES | FLAG_GEOMETRY_SEPARATE_PRIMITIVES
700 },
701 {
702 "geometry_scatter_layers",
703 "Each geometry shader instance outputs its primitives to multiple layers and far from other primitives of the same instance",
704 FLAG_GEOMETRY_SCATTER_LAYERS | FLAG_GEOMETRY_SEPARATE_PRIMITIVES
705 },
706 };
707
708 for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(cases); ++ndx)
709 group->addChild(new GridRenderTestCase(testCtx, cases[ndx].name, cases[ndx].desc, cases[ndx].flags));
710
711 return group.release();
712 }
713
714 } // tessellation
715 } // vkt
716