1 /*-------------------------------------------------------------------------
2 * drawElements Quality Program OpenGL (ES) Module
3 * -----------------------------------------------
4 *
5 * Copyright 2014 The Android Open Source Project
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 *//*!
20 * \file
21 * \brief GLES Scissor tests
22 *//*--------------------------------------------------------------------*/
23
24 #include "glsScissorTests.hpp"
25 #include "glsTextureTestUtil.hpp"
26
27 #include "deMath.h"
28 #include "deRandom.hpp"
29 #include "deUniquePtr.hpp"
30
31 #include "tcuTestCase.hpp"
32 #include "tcuImageCompare.hpp"
33 #include "tcuVector.hpp"
34 #include "tcuVectorUtil.hpp"
35 #include "tcuTexture.hpp"
36 #include "tcuStringTemplate.hpp"
37
38 #include "gluStrUtil.hpp"
39 #include "gluDrawUtil.hpp"
40 #include "gluPixelTransfer.hpp"
41 #include "gluObjectWrapper.hpp"
42
43 #include "glwEnums.hpp"
44 #include "glwFunctions.hpp"
45
46 #include <map>
47
48 namespace deqp
49 {
50 namespace gls
51 {
52 namespace Functional
53 {
54 namespace
55 {
56
57 using namespace ScissorTestInternal;
58 using namespace glw; // GL types
59
60 using tcu::ConstPixelBufferAccess;
61 using tcu::PixelBufferAccess;
62 using tcu::TestLog;
63
64 using std::vector;
65 using std::string;
66 using std::map;
67 using tcu::Vec3;
68 using tcu::Vec4;
69 using tcu::IVec4;
70 using tcu::UVec4;
71
drawQuad(const glw::Functions & gl,deUint32 program,const Vec3 & p0,const Vec3 & p1)72 void drawQuad (const glw::Functions& gl, deUint32 program, const Vec3& p0, const Vec3& p1)
73 {
74 // Vertex data.
75 const float hz = (p0.z() + p1.z()) * 0.5f;
76 const float position[] =
77 {
78 p0.x(), p0.y(), p0.z(), 1.0f,
79 p0.x(), p1.y(), hz, 1.0f,
80 p1.x(), p0.y(), hz, 1.0f,
81 p1.x(), p1.y(), p1.z(), 1.0f
82 };
83
84 const deUint16 indices[] = { 0, 1, 2, 2, 1, 3 };
85
86 const deInt32 posLoc = gl.getAttribLocation(program, "a_position");
87
88 gl.useProgram(program);
89 gl.enableVertexAttribArray(posLoc);
90 gl.vertexAttribPointer(posLoc, 4, GL_FLOAT, GL_FALSE, 0, &position[0]);
91
92 gl.drawElements(GL_TRIANGLES, DE_LENGTH_OF_ARRAY(indices), GL_UNSIGNED_SHORT, &indices[0]);
93
94 gl.disableVertexAttribArray(posLoc);
95
96 }
97
drawPrimitives(const glw::Functions & gl,deUint32 program,const deUint32 type,const vector<float> & vertices,const vector<deUint16> & indices)98 void drawPrimitives (const glw::Functions& gl, deUint32 program, const deUint32 type, const vector<float>& vertices, const vector<deUint16>& indices)
99 {
100 const deInt32 posLoc = gl.getAttribLocation(program, "a_position");
101
102 TCU_CHECK(posLoc >= 0);
103
104 gl.useProgram(program);
105 gl.enableVertexAttribArray(posLoc);
106 gl.vertexAttribPointer(posLoc, 4, GL_FLOAT, GL_FALSE, 0, &vertices[0]);
107
108 gl.drawElements(type, GLsizei(indices.size()), GL_UNSIGNED_SHORT, &indices[0]);
109
110 gl.disableVertexAttribArray(posLoc);
111 }
112
113 template<typename T>
clearEdges(const tcu::PixelBufferAccess & access,const T & color,const IVec4 & scissorArea)114 void clearEdges (const tcu::PixelBufferAccess& access, const T& color, const IVec4& scissorArea)
115 {
116 for (int y = 0; y < access.getHeight(); y++)
117 for (int x = 0; x < access.getWidth(); x++)
118 {
119 if (y < scissorArea.y() ||
120 y >= scissorArea.y() + scissorArea.w() ||
121 x < scissorArea.x() ||
122 x >= scissorArea.x()+ scissorArea.z())
123 access.setPixel(color, x, y);
124 }
125 }
126
genShaders(glu::GLSLVersion version)127 glu::ProgramSources genShaders(glu::GLSLVersion version)
128 {
129 const string vtxSource = "${VERSION}\n"
130 "${IN} highp vec4 a_position;\n"
131 "void main(){\n"
132 " gl_Position = a_position;\n"
133 "}\n";
134
135 const string frgSource = "${VERSION}\n"
136 "${OUT_DECL}"
137 "uniform highp vec4 u_color;\n"
138 "void main(){\n"
139 " ${OUTPUT} = u_color;\n"
140 "}\n";
141
142 map<string, string> params;
143
144 switch(version)
145 {
146 case glu::GLSL_VERSION_100_ES:
147 params["VERSION"] = "#version 100";
148 params["IN"] = "attribute";
149 params["OUT_DECL"] = "";
150 params["OUTPUT"] = "gl_FragColor";
151 break;
152
153 case glu::GLSL_VERSION_300_ES:
154 case glu::GLSL_VERSION_310_ES: // Assumed to support 3.0
155 params["VERSION"] = "#version 300 es";
156 params["IN"] = "in";
157 params["OUT_DECL"] = "out mediump vec4 f_color;\n";
158 params["OUTPUT"] = "f_color";
159 break;
160
161 default:
162 DE_ASSERT(!"Unsupported version");
163 }
164
165 return glu::makeVtxFragSources(tcu::StringTemplate(vtxSource).specialize(params), tcu::StringTemplate(frgSource).specialize(params));
166 }
167
168 // Wrapper class, provides iterator & reporting logic
169 class ScissorCase : public tcu::TestCase
170 {
171 public:
172 ScissorCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char *name, const char* desc, const Vec4& scissorArea);
~ScissorCase(void)173 virtual ~ScissorCase (void) {}
174
175 virtual IterateResult iterate (void);
176
177 protected:
178 virtual void render (GLuint program, const IVec4& viewport) const = 0;
179
180 glu::RenderContext& m_renderCtx;
181 const Vec4 m_scissorArea;
182 };
183
ScissorCase(tcu::TestContext & testCtx,glu::RenderContext & renderCtx,const char * name,const char * desc,const Vec4 & scissorArea)184 ScissorCase::ScissorCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char *name, const char* desc, const Vec4& scissorArea)
185 : TestCase (testCtx, name, desc)
186 , m_renderCtx (renderCtx)
187 , m_scissorArea (scissorArea)
188 {
189 }
190
iterate(void)191 ScissorCase::IterateResult ScissorCase::iterate (void)
192 {
193 using TextureTestUtil::RandomViewport;
194
195 const glw::Functions& gl = m_renderCtx.getFunctions();
196 TestLog& log = m_testCtx.getLog();
197 const tcu::PixelFormat renderFormat = m_renderCtx.getRenderTarget().getPixelFormat();
198 const tcu::Vec4 threshold = 0.02f * UVec4(1u << de::max(0, 8 - renderFormat.redBits),
199 1u << de::max(0, 8 - renderFormat.greenBits),
200 1u << de::max(0, 8 - renderFormat.blueBits),
201 1u << de::max(0, 8 - renderFormat.alphaBits)).asFloat();
202 const glu::ShaderProgram shader (m_renderCtx, genShaders(glu::getContextTypeGLSLVersion(m_renderCtx.getType())));
203
204 const RandomViewport viewport (m_renderCtx.getRenderTarget(), 256, 256, deStringHash(getName()));
205 const IVec4 relScissorArea (int(m_scissorArea.x()*viewport.width),
206 int(m_scissorArea.y()*viewport.height),
207 int(m_scissorArea.z()*viewport.width),
208 int(m_scissorArea.w()*viewport.height));
209 const IVec4 absScissorArea (relScissorArea.x() + viewport.x,
210 relScissorArea.y() + viewport.y,
211 relScissorArea.z(),
212 relScissorArea.w());
213
214 tcu::Surface refImage (viewport.width, viewport.height);
215 tcu::Surface resImage (viewport.width, viewport.height);
216
217 if (!shader.isOk())
218 {
219 log << shader;
220 m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Shader compile/link failed");
221 return STOP;
222 }
223
224 log << TestLog::Message << "Viewport area is " << IVec4(viewport.x, viewport.y, viewport.width, viewport.height) << TestLog::EndMessage;
225 log << TestLog::Message << "Scissor area is " << absScissorArea << TestLog::EndMessage;
226
227 // Render reference (no scissors)
228 {
229 log << TestLog::Message << "Rendering reference (scissors disabled)" << TestLog::EndMessage;
230
231 gl.useProgram(shader.getProgram());
232 gl.viewport(viewport.x, viewport.y, viewport.width, viewport.height);
233
234 gl.clearColor(0.125f, 0.25f, 0.5f, 1.0f);
235 gl.clearDepthf(1.0f);
236 gl.clearStencil(0);
237 gl.disable(GL_DEPTH_TEST);
238 gl.disable(GL_STENCIL_TEST);
239 gl.disable(GL_SCISSOR_TEST);
240 gl.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
241
242 render(shader.getProgram(), IVec4(viewport.x, viewport.y, viewport.width, viewport.height));
243
244 glu::readPixels(m_renderCtx, viewport.x, viewport.y, refImage.getAccess());
245 GLU_CHECK_ERROR(gl.getError());
246 }
247
248 // Render result (scissors)
249 {
250 log << TestLog::Message << "Rendering result (scissors enabled)" << TestLog::EndMessage;
251
252 gl.useProgram(shader.getProgram());
253 gl.viewport(viewport.x, viewport.y, viewport.width, viewport.height);
254
255 gl.clearColor(0.125f, 0.25f, 0.5f, 1.0f);
256 gl.clearDepthf(1.0f);
257 gl.clearStencil(0);
258 gl.disable(GL_DEPTH_TEST);
259 gl.disable(GL_STENCIL_TEST);
260 gl.disable(GL_SCISSOR_TEST);
261 gl.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
262
263 gl.scissor(absScissorArea.x(), absScissorArea.y(), absScissorArea.z(), absScissorArea.w());
264 gl.enable(GL_SCISSOR_TEST);
265
266 render(shader.getProgram(), IVec4(viewport.x, viewport.y, viewport.width, viewport.height));
267
268 glu::readPixels(m_renderCtx, viewport.x, viewport.y, resImage.getAccess());
269 GLU_CHECK_ERROR(gl.getError());
270 }
271
272 // Manual 'scissors' for reference image
273 log << TestLog::Message << "Clearing area outside scissor area from reference" << TestLog::EndMessage;
274 clearEdges(refImage.getAccess(), IVec4(32, 64, 128, 255), relScissorArea);
275
276 if (tcu::floatThresholdCompare(log, "ComparisonResult", "Image comparison result", refImage.getAccess(), resImage.getAccess(), threshold, tcu::COMPARE_LOG_RESULT))
277 m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
278 else
279 m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image comparison failed");
280
281 return STOP;
282 }
283
284 // Tests scissoring with multiple primitive types
285 class ScissorPrimitiveCase : public ScissorCase
286 {
287 public:
288 ScissorPrimitiveCase (tcu::TestContext& testCtx,
289 glu::RenderContext& renderCtx,
290 const char* name,
291 const char* desc,
292 const Vec4& scissorArea,
293 const Vec4& renderArea,
294 PrimitiveType type,
295 int primitiveCount);
~ScissorPrimitiveCase(void)296 virtual ~ScissorPrimitiveCase (void){}
297
298 protected:
299 virtual void render (GLuint program, const IVec4& viewport) const;
300
301 private:
302 const Vec4 m_renderArea;
303 const PrimitiveType m_primitiveType;
304 const int m_primitiveCount;
305 };
306
ScissorPrimitiveCase(tcu::TestContext & testCtx,glu::RenderContext & renderCtx,const char * name,const char * desc,const Vec4 & scissorArea,const Vec4 & renderArea,PrimitiveType type,int primitiveCount)307 ScissorPrimitiveCase::ScissorPrimitiveCase (tcu::TestContext& testCtx,
308 glu::RenderContext& renderCtx,
309 const char* name,
310 const char* desc,
311 const Vec4& scissorArea,
312 const Vec4& renderArea,
313 PrimitiveType type,
314 int primitiveCount)
315 : ScissorCase (testCtx, renderCtx, name, desc, scissorArea)
316 , m_renderArea (renderArea)
317 , m_primitiveType (type)
318 , m_primitiveCount (primitiveCount)
319 {
320 }
321
render(GLuint program,const IVec4 &) const322 void ScissorPrimitiveCase::render (GLuint program, const IVec4&) const
323 {
324 const glw::Functions& gl = m_renderCtx.getFunctions();
325 const Vec4 white (1.0f, 1.0f, 1.0f, 1.0);
326 const Vec4 primitiveArea (m_renderArea.x()*2.0f-1.0f,
327 m_renderArea.x()*2.0f-1.0f,
328 m_renderArea.z()*2.0f,
329 m_renderArea.w()*2.0f);
330
331 static const float quadPositions[] =
332 {
333 0.0f, 1.0f,
334 0.0f, 0.0f,
335 1.0f, 1.0f,
336 1.0f, 0.0f
337 };
338 static const float triPositions[] =
339 {
340 0.0f, 0.0f,
341 1.0f, 0.0f,
342 0.5f, 1.0f,
343 };
344 static const float linePositions[] =
345 {
346 0.0f, 0.0f,
347 1.0f, 1.0f
348 };
349 static const float pointPosition[] =
350 {
351 0.5f, 0.5f
352 };
353
354 const float* positionSet[] = { pointPosition, linePositions, triPositions, quadPositions };
355 const int vertexCountSet[]= { 1, 2, 3, 4 };
356 const int indexCountSet[] = { 1, 2, 3, 6 };
357
358 const deUint16 baseIndices[] = { 0, 1, 2, 2, 1, 3 };
359 const float* basePositions = positionSet[m_primitiveType];
360 const int vertexCount = vertexCountSet[m_primitiveType];
361 const int indexCount = indexCountSet[m_primitiveType];
362
363 const float scale = 1.44f/deFloatSqrt(float(m_primitiveCount)*2.0f); // Magic value to roughly fill the render area with primitives at a readable density
364 vector<float> positions (4*vertexCount*m_primitiveCount);
365 vector<deUint16> indices (indexCount*m_primitiveCount);
366 de::Random rng (1234);
367
368 for (int primNdx = 0; primNdx < m_primitiveCount; primNdx++)
369 {
370 const float dx = m_primitiveCount>1 ? rng.getFloat() : 0.0f;
371 const float dy = m_primitiveCount>1 ? rng.getFloat() : 0.0f;
372
373 for (int vertNdx = 0; vertNdx < vertexCount; vertNdx++)
374 {
375 const int ndx = primNdx*4*vertexCount + vertNdx*4;
376 positions[ndx+0] = (basePositions[vertNdx*2 + 0]*scale + dx)*primitiveArea.z() + primitiveArea.x();
377 positions[ndx+1] = (basePositions[vertNdx*2 + 1]*scale + dy)*primitiveArea.w() + primitiveArea.y();
378 positions[ndx+2] = 0.2f;
379 positions[ndx+3] = 1.0f;
380 }
381
382 for (int ndx = 0; ndx < indexCount; ndx++)
383 indices[primNdx*indexCount + ndx] = baseIndices[ndx] + primNdx*vertexCount;
384 }
385
386 gl.uniform4fv(gl.getUniformLocation(program, "u_color"), 1, white.m_data);
387
388 switch (m_primitiveType)
389 {
390 case TRIANGLE: drawPrimitives(gl, program, GL_TRIANGLES, positions, indices); break;
391 case LINE: drawPrimitives(gl, program, GL_LINES, positions, indices); break;
392 case POINT: drawPrimitives(gl, program, GL_POINTS, positions, indices); break;
393 default: DE_ASSERT(false); break;
394 }
395 }
396
397 // Test effect of scissor on default framebuffer clears
398 class ScissorClearCase : public ScissorCase
399 {
400 public:
401 ScissorClearCase (tcu::TestContext& testCtx,
402 glu::RenderContext& renderCtx,
403 const char* name,
404 const char* desc,
405 const Vec4& scissorArea,
406 deUint32 clearMode);
~ScissorClearCase(void)407 virtual ~ScissorClearCase (void) {}
408
409 virtual void init (void);
410
411 protected:
412 virtual void render (GLuint program, const IVec4& viewport) const;
413
414 private:
415 const deUint32 m_clearMode; //!< Combination of the flags accepted by glClear
416 };
417
ScissorClearCase(tcu::TestContext & testCtx,glu::RenderContext & renderCtx,const char * name,const char * desc,const Vec4 & scissorArea,deUint32 clearMode)418 ScissorClearCase::ScissorClearCase (tcu::TestContext& testCtx,
419 glu::RenderContext& renderCtx,
420 const char* name,
421 const char* desc,
422 const Vec4& scissorArea,
423 deUint32 clearMode)
424 : ScissorCase (testCtx, renderCtx, name, desc, scissorArea)
425 , m_clearMode (clearMode)
426 {
427 }
428
init(void)429 void ScissorClearCase::init (void)
430 {
431 if ((m_clearMode & GL_DEPTH_BUFFER_BIT) && m_renderCtx.getRenderTarget().getDepthBits() == 0)
432 throw tcu::NotSupportedError("Cannot clear depth; no depth buffer present", "", __FILE__, __LINE__);
433 else if ((m_clearMode & GL_STENCIL_BUFFER_BIT) && m_renderCtx.getRenderTarget().getStencilBits() == 0)
434 throw tcu::NotSupportedError("Cannot clear stencil; no stencil buffer present", "", __FILE__, __LINE__);
435 }
436
render(GLuint program,const IVec4 &) const437 void ScissorClearCase::render (GLuint program, const IVec4&) const
438 {
439 const glw::Functions& gl = m_renderCtx.getFunctions();
440 const Vec4 white (1.0f, 1.0f, 1.0f, 1.0);
441
442 gl.clearColor(0.6f, 0.1f, 0.1f, 1.0);
443 gl.clearDepthf(0.0f);
444
445 if (m_clearMode & GL_DEPTH_BUFFER_BIT)
446 {
447 gl.enable(GL_DEPTH_TEST);
448 gl.depthFunc(GL_GREATER);
449 }
450
451 if (m_clearMode & GL_STENCIL_BUFFER_BIT)
452 {
453 gl.clearStencil(123);
454 gl.enable(GL_STENCIL_TEST);
455 gl.stencilFunc(GL_EQUAL, 123, ~0u);
456 }
457
458 if (m_clearMode & GL_COLOR_BUFFER_BIT)
459 gl.clearColor(0.1f, 0.6f, 0.1f, 1.0);
460
461 gl.clear(m_clearMode);
462 gl.disable(GL_SCISSOR_TEST);
463
464 gl.uniform4fv(gl.getUniformLocation(program, "u_color"), 1, white.getPtr());
465
466 if (!(m_clearMode & GL_COLOR_BUFFER_BIT))
467 drawQuad(gl, program, Vec3(-1.0f, -1.0f, 0.5f), Vec3(1.0f, 1.0f, 0.5f));
468
469 gl.disable(GL_DEPTH_TEST);
470 gl.disable(GL_STENCIL_TEST);
471 }
472
473 class FramebufferBlitCase : public ScissorCase
474 {
475 public:
476 FramebufferBlitCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char* name, const char* desc, const Vec4& scissorArea);
~FramebufferBlitCase(void)477 virtual ~FramebufferBlitCase (void) {}
478
479 virtual void init (void);
480 virtual void deinit (void);
481
482 protected:
483 typedef de::MovePtr<glu::Framebuffer> FramebufferP;
484
485 enum {SIZE = 64};
486
487 virtual void render (GLuint program, const IVec4& viewport) const;
488
489 FramebufferP m_fbo;
490 };
491
FramebufferBlitCase(tcu::TestContext & testCtx,glu::RenderContext & renderCtx,const char * name,const char * desc,const Vec4 & scissorArea)492 FramebufferBlitCase::FramebufferBlitCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char* name, const char* desc, const Vec4& scissorArea)
493 : ScissorCase(testCtx, renderCtx, name, desc, scissorArea)
494 {
495 }
496
init(void)497 void FramebufferBlitCase::init (void)
498 {
499 if (m_renderCtx.getRenderTarget().getNumSamples())
500 throw tcu::NotSupportedError("Cannot blit to multisampled framebuffer", "", __FILE__, __LINE__);
501
502 const glw::Functions& gl = m_renderCtx.getFunctions();
503 const glu::Renderbuffer colorbuf (gl);
504 const tcu::Vec4 clearColor (1.0f, 0.5, 0.125f, 1.0f);
505
506 m_fbo = FramebufferP(new glu::Framebuffer(gl));
507
508 gl.bindFramebuffer(GL_DRAW_FRAMEBUFFER, **m_fbo);
509
510 gl.bindRenderbuffer(GL_RENDERBUFFER, *colorbuf);
511 gl.renderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, SIZE, SIZE);
512 gl.framebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, *colorbuf);
513
514 gl.clearBufferfv(GL_COLOR, 0, clearColor.getPtr());
515 gl.bindFramebuffer(GL_DRAW_FRAMEBUFFER, m_renderCtx.getDefaultFramebuffer());
516 }
517
deinit(void)518 void FramebufferBlitCase::deinit (void)
519 {
520 m_fbo.clear();
521 }
522
render(GLuint program,const IVec4 & viewport) const523 void FramebufferBlitCase::render(GLuint program, const IVec4& viewport) const
524 {
525 const glw::Functions& gl = m_renderCtx.getFunctions();
526
527 const int width = viewport.z();
528 const int height = viewport.w();
529 const deInt32 defaultFramebuffer = m_renderCtx.getDefaultFramebuffer();
530
531 DE_UNREF(program);
532
533 // blit to default framebuffer
534 gl.bindFramebuffer(GL_READ_FRAMEBUFFER, **m_fbo);
535 gl.bindFramebuffer(GL_DRAW_FRAMEBUFFER, defaultFramebuffer);
536
537 gl.blitFramebuffer(0, 0, SIZE, SIZE, viewport.x(), viewport.y(), viewport.x() + width, viewport.y() + height, GL_COLOR_BUFFER_BIT, GL_NEAREST);
538
539 gl.bindFramebuffer(GL_READ_FRAMEBUFFER, defaultFramebuffer);
540 }
541
542 struct BufferFmtDesc
543 {
544 tcu::TextureFormat texFmt;
545 GLenum colorFmt;
546 };
547
548 struct Color
549 {
550 enum Type {FLOAT, INT, UINT};
551
552 Type type;
553
554 union
555 {
556 float f[4];
557 deInt32 i[4];
558 deUint32 u[4];
559 };
560
Colordeqp::gls::Functional::__anone412723b0111::Color561 Color(const float f_[4]) : type(FLOAT) { f[0] = f_[0]; f[1] = f_[1]; f[2] = f_[2]; f[3] = f_[3]; }
Colordeqp::gls::Functional::__anone412723b0111::Color562 Color(const deInt32 i_[4]) : type(INT) { i[0] = i_[0]; i[1] = i_[1]; i[2] = i_[2]; i[3] = i_[3]; }
Colordeqp::gls::Functional::__anone412723b0111::Color563 Color(const deUint32 u_[4]) : type(UINT) { u[0] = u_[0]; u[1] = u_[1]; u[2] = u_[2]; u[3] = u_[3]; }
564 };
565
566 class FramebufferClearCase : public tcu::TestCase
567 {
568 public:
569 FramebufferClearCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char* name, const char* desc, ClearType clearType);
~FramebufferClearCase(void)570 virtual ~FramebufferClearCase (void) {}
571
572 virtual IterateResult iterate (void);
573
574 private:
575 static void clearBuffers (const glw::Functions& gl, Color color, float depth, int stencil);
576 static Color getBaseColor (const BufferFmtDesc& bufferFmt);
577 static Color getMainColor (const BufferFmtDesc& bufferFmt);
578 static BufferFmtDesc getBufferFormat (ClearType type);
579
580 virtual void render (GLuint program) const;
581
582 glu::RenderContext& m_renderCtx;
583 const ClearType m_clearType;
584 };
585
FramebufferClearCase(tcu::TestContext & testCtx,glu::RenderContext & renderCtx,const char * name,const char * desc,ClearType clearType)586 FramebufferClearCase::FramebufferClearCase (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char* name, const char* desc, ClearType clearType)
587 : tcu::TestCase (testCtx, name, desc)
588 , m_renderCtx (renderCtx)
589 , m_clearType (clearType)
590 {
591 }
592
clearBuffers(const glw::Functions & gl,Color color,float depth,int stencil)593 void FramebufferClearCase::clearBuffers (const glw::Functions& gl, Color color, float depth, int stencil)
594 {
595 switch(color.type)
596 {
597 case Color::FLOAT: gl.clearBufferfv (GL_COLOR, 0, color.f); break;
598 case Color::INT: gl.clearBufferiv (GL_COLOR, 0, color.i); break;
599 case Color::UINT: gl.clearBufferuiv(GL_COLOR, 0, color.u); break;
600 default:
601 DE_ASSERT(false);
602 }
603
604 gl.clearBufferfv(GL_DEPTH, 0, &depth);
605 gl.clearBufferiv(GL_STENCIL, 0, &stencil);
606 }
607
iterate(void)608 FramebufferClearCase::IterateResult FramebufferClearCase::iterate (void)
609 {
610 TestLog& log = m_testCtx.getLog();
611 const glw::Functions& gl = m_renderCtx.getFunctions();
612 const glu::ShaderProgram shader (m_renderCtx, genShaders(glu::getContextTypeGLSLVersion(m_renderCtx.getType())));
613
614 const glu::Framebuffer fbo (gl);
615 const glu::Renderbuffer colorbuf (gl);
616 const glu::Renderbuffer depthbuf (gl);
617
618 const BufferFmtDesc bufferFmt = getBufferFormat(m_clearType);
619 const Color baseColor = getBaseColor(bufferFmt);
620
621 const int width = 64;
622 const int height = 64;
623
624 const IVec4 scissorArea (8, 8, 48, 48);
625
626 vector<deUint8> refData (width*height*bufferFmt.texFmt.getPixelSize());
627 vector<deUint8> resData (width*height*bufferFmt.texFmt.getPixelSize());
628
629 tcu::PixelBufferAccess refAccess (bufferFmt.texFmt, width, height, 1, &refData[0]);
630 tcu::PixelBufferAccess resAccess (bufferFmt.texFmt, width, height, 1, &resData[0]);
631
632 if (!shader.isOk())
633 {
634 log << shader;
635 m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Shader compile/link failed");
636 return STOP;
637 }
638
639 gl.bindFramebuffer(GL_DRAW_FRAMEBUFFER, *fbo);
640 gl.bindFramebuffer(GL_READ_FRAMEBUFFER, *fbo);
641
642 // Color
643 gl.bindRenderbuffer(GL_RENDERBUFFER, *colorbuf);
644 gl.renderbufferStorage(GL_RENDERBUFFER, bufferFmt.colorFmt, width, height);
645 gl.framebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, *colorbuf);
646
647 // Depth/stencil
648 gl.bindRenderbuffer(GL_RENDERBUFFER, *depthbuf);
649 gl.renderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, width, height);
650 gl.framebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, *depthbuf);
651
652 log << TestLog::Message << "Scissor area is " << scissorArea << TestLog::EndMessage;
653
654 // Render reference
655 {
656 log << TestLog::Message << "Rendering reference (scissors disabled)" << TestLog::EndMessage;
657
658 gl.useProgram(shader.getProgram());
659 gl.viewport(0, 0, width, height);
660
661 gl.disable(GL_DEPTH_TEST);
662 gl.disable(GL_STENCIL_TEST);
663 gl.disable(GL_SCISSOR_TEST);
664
665 clearBuffers(gl, baseColor, 1.0f, 0);
666
667 render(shader.getProgram());
668
669 glu::readPixels(m_renderCtx, 0, 0, refAccess);
670 GLU_CHECK_ERROR(gl.getError());
671 }
672
673 // Render result
674 {
675 log << TestLog::Message << "Rendering result (scissors enabled)" << TestLog::EndMessage;
676
677 gl.useProgram(shader.getProgram());
678 gl.viewport(0, 0, width, height);
679
680 gl.disable(GL_DEPTH_TEST);
681 gl.disable(GL_STENCIL_TEST);
682 gl.disable(GL_SCISSOR_TEST);
683
684 clearBuffers(gl, baseColor, 1.0f, 0);
685
686 gl.enable(GL_SCISSOR_TEST);
687 gl.scissor(scissorArea.x(), scissorArea.y(), scissorArea.z(), scissorArea.w());
688
689 render(shader.getProgram());
690
691 glu::readPixels(m_renderCtx, 0, 0, resAccess);
692 GLU_CHECK_ERROR(gl.getError());
693 }
694
695 {
696 bool resultOk = false;
697
698 switch (baseColor.type)
699 {
700 case Color::FLOAT:
701 clearEdges(refAccess, Vec4(baseColor.f[0], baseColor.f[1], baseColor.f[2], baseColor.f[3]), scissorArea);
702 resultOk = tcu::floatThresholdCompare(log, "ComparisonResult", "Image comparison result", refAccess, resAccess, Vec4(0.02f, 0.02f, 0.02f, 0.02f), tcu::COMPARE_LOG_RESULT);
703 break;
704
705 case Color::INT:
706 clearEdges(refAccess, IVec4(baseColor.i[0], baseColor.i[1], baseColor.i[2], baseColor.i[3]), scissorArea);
707 resultOk = tcu::intThresholdCompare(log, "ComparisonResult", "Image comparison result", refAccess, resAccess, UVec4(2, 2, 2, 2), tcu::COMPARE_LOG_RESULT);
708 break;
709
710 case Color::UINT:
711 clearEdges(refAccess, UVec4(baseColor.u[0], baseColor.u[1], baseColor.u[2], baseColor.u[3]), scissorArea);
712 resultOk = tcu::intThresholdCompare(log, "ComparisonResult", "Image comparison result", refAccess, resAccess, UVec4(2, 2, 2, 2), tcu::COMPARE_LOG_RESULT);
713 break;
714 }
715
716 if (resultOk)
717 m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
718 else
719 m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image comparison failed");
720 }
721
722 return STOP;
723 }
724
getBaseColor(const BufferFmtDesc & bufferFmt)725 Color FramebufferClearCase::getBaseColor (const BufferFmtDesc& bufferFmt)
726 {
727 const float f[4] = {0.125f, 0.25f, 0.5f, 1.0f};
728 const deInt32 i[4] = {0, 0, 0, 0};
729 const deUint32 u[4] = {0, 0, 0, 0};
730
731 switch(bufferFmt.colorFmt)
732 {
733 case GL_RGBA8: return Color(f);
734 case GL_RGBA8I: return Color(i);
735 case GL_RGBA8UI: return Color(u);
736 default:
737 DE_ASSERT(false);
738 }
739
740 return Color(f);
741 }
742
getMainColor(const BufferFmtDesc & bufferFmt)743 Color FramebufferClearCase::getMainColor (const BufferFmtDesc& bufferFmt)
744 {
745 const float f[4] = {1.0f, 1.0f, 0.5f, 1.0f};
746 const deInt32 i[4] = {127, -127, 0, 127};
747 const deUint32 u[4] = {255, 255, 0, 255};
748
749 switch(bufferFmt.colorFmt)
750 {
751 case GL_RGBA8: return Color(f);
752 case GL_RGBA8I: return Color(i);
753 case GL_RGBA8UI: return Color(u);
754 default:
755 DE_ASSERT(false);
756 }
757
758 return Color(f);
759 }
760
getBufferFormat(ClearType type)761 BufferFmtDesc FramebufferClearCase::getBufferFormat (ClearType type)
762 {
763 BufferFmtDesc retval;
764
765 switch (type)
766 {
767 case CLEAR_COLOR_FLOAT:
768 retval.colorFmt = GL_RGBA16F;
769 retval.texFmt = tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::HALF_FLOAT);
770 DE_ASSERT(!"Floating point clear not implemented");// \todo [2014-1-23 otto] pixel read format & type, nothing guaranteed, need extension...
771 break;
772
773 case CLEAR_COLOR_INT:
774 retval.colorFmt = GL_RGBA8I;
775 retval.texFmt = tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::SIGNED_INT32);
776 break;
777
778 case CLEAR_COLOR_UINT:
779 retval.colorFmt = GL_RGBA8UI;
780 retval.texFmt = tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::UNSIGNED_INT32);
781 break;
782
783 default:
784 retval.colorFmt = GL_RGBA8;
785 retval.texFmt = tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::UNORM_INT8);
786 break;
787 }
788
789 return retval;
790 }
791
render(GLuint program) const792 void FramebufferClearCase::render (GLuint program) const
793 {
794 const glw::Functions& gl = m_renderCtx.getFunctions();
795
796 const BufferFmtDesc bufferFmt = getBufferFormat(m_clearType);
797 const Color clearColor = getMainColor(bufferFmt);
798
799 const int clearStencil = 123;
800 const float clearDepth = 0.5f;
801
802 switch (m_clearType)
803 {
804 case CLEAR_COLOR_FIXED: gl.clearBufferfv (GL_COLOR, 0, clearColor.f); break;
805 case CLEAR_COLOR_FLOAT: gl.clearBufferfv (GL_COLOR, 0, clearColor.f); break;
806 case CLEAR_COLOR_INT: gl.clearBufferiv (GL_COLOR, 0, clearColor.i); break;
807 case CLEAR_COLOR_UINT: gl.clearBufferuiv(GL_COLOR, 0, clearColor.u); break;
808 case CLEAR_DEPTH: gl.clearBufferfv (GL_DEPTH, 0, &clearDepth); break;
809 case CLEAR_STENCIL: gl.clearBufferiv (GL_STENCIL, 0, &clearStencil); break;
810 case CLEAR_DEPTH_STENCIL: gl.clearBufferfi (GL_DEPTH_STENCIL, 0, clearDepth, clearStencil); break;
811
812 default:
813 DE_ASSERT(false);
814 }
815
816 const bool useDepth = (m_clearType == CLEAR_DEPTH || m_clearType == CLEAR_DEPTH_STENCIL);
817 const bool useStencil = (m_clearType == CLEAR_STENCIL || m_clearType == CLEAR_DEPTH_STENCIL);
818
819 // Render something to expose changes to depth/stencil buffer
820 if (useDepth || useStencil)
821 {
822 if (useDepth)
823 gl.enable(GL_DEPTH_TEST);
824
825 if (useStencil)
826 gl.enable(GL_STENCIL_TEST);
827
828 gl.stencilFunc(GL_EQUAL, clearStencil, ~0u);
829 gl.depthFunc(GL_GREATER);
830 gl.disable(GL_SCISSOR_TEST);
831
832 gl.uniform4fv(gl.getUniformLocation(program, "u_color"), 1, clearColor.f);
833 drawQuad(gl, program, tcu::Vec3(-1.0f, -1.0f, 0.6f), tcu::Vec3(1.0f, 1.0f, 0.6f));
834 }
835 }
836
837 } // Anonymous
838
839 namespace ScissorTestInternal
840 {
841
createPrimitiveTest(tcu::TestContext & testCtx,glu::RenderContext & renderCtx,const char * name,const char * desc,const Vec4 & scissorArea,const Vec4 & renderArea,PrimitiveType type,int primitiveCount)842 tcu::TestNode* createPrimitiveTest (tcu::TestContext& testCtx,
843 glu::RenderContext& renderCtx,
844 const char* name,
845 const char* desc,
846 const Vec4& scissorArea,
847 const Vec4& renderArea,
848 PrimitiveType type,
849 int primitiveCount)
850 {
851 return new ScissorPrimitiveCase(testCtx, renderCtx, name, desc, scissorArea, renderArea, type, primitiveCount);
852 }
853
createClearTest(tcu::TestContext & testCtx,glu::RenderContext & renderCtx,const char * name,const char * desc,const Vec4 & scissorArea,deUint32 clearMode)854 tcu::TestNode* createClearTest (tcu::TestContext& testCtx,
855 glu::RenderContext& renderCtx,
856 const char* name,
857 const char* desc,
858 const Vec4& scissorArea,
859 deUint32 clearMode)
860 {
861 return new ScissorClearCase(testCtx, renderCtx, name, desc, scissorArea, clearMode);
862 }
863
createFramebufferClearTest(tcu::TestContext & testCtx,glu::RenderContext & renderCtx,const char * name,const char * desc,ClearType clearType)864 tcu::TestNode* createFramebufferClearTest (tcu::TestContext& testCtx,
865 glu::RenderContext& renderCtx,
866 const char* name,
867 const char* desc,
868 ClearType clearType)
869 {
870 return new FramebufferClearCase(testCtx, renderCtx, name, desc, clearType);
871 }
872
createFramebufferBlitTest(tcu::TestContext & testCtx,glu::RenderContext & renderCtx,const char * name,const char * desc,const Vec4 & scissorArea)873 tcu::TestNode* createFramebufferBlitTest (tcu::TestContext& testCtx,
874 glu::RenderContext& renderCtx,
875 const char* name,
876 const char* desc,
877 const Vec4& scissorArea)
878 {
879 return new FramebufferBlitCase(testCtx, renderCtx, name, desc, scissorArea);
880 }
881
882 } // ScissorTestInternal
883 } // Functional
884 } // gls
885 } // deqp
886