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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2010 Google Inc. | 3 * Copyright 2010 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 #include "GrGpu.h" | 10 #include "GrGpu.h" |
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157 GrVertexBuffer* GrGpu::createVertexBuffer(size_t size, bool dynamic) { | 157 GrVertexBuffer* GrGpu::createVertexBuffer(size_t size, bool dynamic) { |
158 this->handleDirtyContext(); | 158 this->handleDirtyContext(); |
159 return this->onCreateVertexBuffer(size, dynamic); | 159 return this->onCreateVertexBuffer(size, dynamic); |
160 } | 160 } |
161 | 161 |
162 GrIndexBuffer* GrGpu::createIndexBuffer(size_t size, bool dynamic) { | 162 GrIndexBuffer* GrGpu::createIndexBuffer(size_t size, bool dynamic) { |
163 this->handleDirtyContext(); | 163 this->handleDirtyContext(); |
164 return this->onCreateIndexBuffer(size, dynamic); | 164 return this->onCreateIndexBuffer(size, dynamic); |
165 } | 165 } |
166 | 166 |
167 GrIndexBuffer* GrGpu::createInstancedIndexBuffer(const uint16_t* pattern, | |
168 int patternSize, | |
169 int reps, | |
170 int vertCount, | |
171 bool isDynamic) { | |
172 size_t bufferSize = patternSize * reps * sizeof(uint16_t); | |
173 GrGpu* me = const_cast<GrGpu*>(this); | |
174 GrIndexBuffer* buffer = me->createIndexBuffer(bufferSize, isDynamic); | |
175 if (buffer) { | |
176 uint16_t* data = (uint16_t*) buffer->map(); | |
177 bool useTempData = (NULL == data); | |
178 if (useTempData) { | |
179 data = SkNEW_ARRAY(uint16_t, reps * patternSize); | |
180 } | |
181 for (int i = 0; i < reps; ++i) { | |
182 int baseIdx = i * patternSize; | |
183 uint16_t baseVert = (uint16_t)(i * vertCount); | |
184 for (int j = 0; j < patternSize; ++j) { | |
185 data[baseIdx+j] = baseVert + pattern[j]; | |
186 } | |
187 } | |
188 if (useTempData) { | |
189 if (!buffer->updateData(data, bufferSize)) { | |
190 SkFAIL("Can't get indices into buffer!"); | |
191 } | |
192 SkDELETE_ARRAY(data); | |
193 } else { | |
194 buffer->unmap(); | |
195 } | |
196 } | |
197 return buffer; | |
198 } | |
199 | |
200 void GrGpu::clear(const SkIRect* rect, | 167 void GrGpu::clear(const SkIRect* rect, |
201 GrColor color, | 168 GrColor color, |
202 bool canIgnoreRect, | 169 bool canIgnoreRect, |
203 GrRenderTarget* renderTarget) { | 170 GrRenderTarget* renderTarget) { |
204 if (NULL == renderTarget) { | 171 if (NULL == renderTarget) { |
205 renderTarget = this->getDrawState().getRenderTarget(); | 172 renderTarget = this->getDrawState().getRenderTarget(); |
206 } | 173 } |
207 if (NULL == renderTarget) { | 174 if (NULL == renderTarget) { |
208 SkASSERT(0); | 175 SkASSERT(0); |
209 return; | 176 return; |
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272 fClipMaskManager.adjustPathStencilParams(outStencilSettings); | 239 fClipMaskManager.adjustPathStencilParams(outStencilSettings); |
273 } | 240 } |
274 | 241 |
275 | 242 |
276 //////////////////////////////////////////////////////////////////////////////// | 243 //////////////////////////////////////////////////////////////////////////////// |
277 | 244 |
278 static const int MAX_QUADS = 1 << 12; // max possible: (1 << 14) - 1; | 245 static const int MAX_QUADS = 1 << 12; // max possible: (1 << 14) - 1; |
279 | 246 |
280 GR_STATIC_ASSERT(4 * MAX_QUADS <= 65535); | 247 GR_STATIC_ASSERT(4 * MAX_QUADS <= 65535); |
281 | 248 |
282 static const uint16_t gQuadIndexPattern[] = { | 249 static inline void fill_indices(uint16_t* indices, int quadCount) { |
283 0, 1, 2, 0, 2, 3 | 250 for (int i = 0; i < quadCount; ++i) { |
284 }; | 251 indices[6 * i + 0] = 4 * i + 0; |
| 252 indices[6 * i + 1] = 4 * i + 1; |
| 253 indices[6 * i + 2] = 4 * i + 2; |
| 254 indices[6 * i + 3] = 4 * i + 0; |
| 255 indices[6 * i + 4] = 4 * i + 2; |
| 256 indices[6 * i + 5] = 4 * i + 3; |
| 257 } |
| 258 } |
285 | 259 |
286 const GrIndexBuffer* GrGpu::getQuadIndexBuffer() const { | 260 const GrIndexBuffer* GrGpu::getQuadIndexBuffer() const { |
287 if (NULL == fQuadIndexBuffer || fQuadIndexBuffer->wasDestroyed()) { | 261 if (NULL == fQuadIndexBuffer || fQuadIndexBuffer->wasDestroyed()) { |
288 SkSafeUnref(fQuadIndexBuffer); | 262 SkSafeUnref(fQuadIndexBuffer); |
| 263 static const int SIZE = sizeof(uint16_t) * 6 * MAX_QUADS; |
289 GrGpu* me = const_cast<GrGpu*>(this); | 264 GrGpu* me = const_cast<GrGpu*>(this); |
290 fQuadIndexBuffer = me->createInstancedIndexBuffer(gQuadIndexPattern, | 265 fQuadIndexBuffer = me->createIndexBuffer(SIZE, false); |
291 6, | 266 if (fQuadIndexBuffer) { |
292 MAX_QUADS, | 267 uint16_t* indices = (uint16_t*)fQuadIndexBuffer->map(); |
293 4); | 268 if (indices) { |
| 269 fill_indices(indices, MAX_QUADS); |
| 270 fQuadIndexBuffer->unmap(); |
| 271 } else { |
| 272 indices = (uint16_t*)sk_malloc_throw(SIZE); |
| 273 fill_indices(indices, MAX_QUADS); |
| 274 if (!fQuadIndexBuffer->updateData(indices, SIZE)) { |
| 275 fQuadIndexBuffer->unref(); |
| 276 fQuadIndexBuffer = NULL; |
| 277 SkFAIL("Can't get indices into buffer!"); |
| 278 } |
| 279 sk_free(indices); |
| 280 } |
| 281 } |
294 } | 282 } |
295 | 283 |
296 return fQuadIndexBuffer; | 284 return fQuadIndexBuffer; |
297 } | 285 } |
298 | 286 |
299 //////////////////////////////////////////////////////////////////////////////// | 287 //////////////////////////////////////////////////////////////////////////////// |
300 | 288 |
301 bool GrGpu::setupClipAndFlushState(DrawType type, const GrDeviceCoordTexture* ds
tCopy, | 289 bool GrGpu::setupClipAndFlushState(DrawType type, const GrDeviceCoordTexture* ds
tCopy, |
302 GrDrawState::AutoRestoreEffects* are, | 290 GrDrawState::AutoRestoreEffects* are, |
303 const SkRect* devBounds) { | 291 const SkRect* devBounds) { |
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524 } | 512 } |
525 | 513 |
526 void GrGpu::releaseIndexArray() { | 514 void GrGpu::releaseIndexArray() { |
527 // if index source was array, we stowed data in the pool | 515 // if index source was array, we stowed data in the pool |
528 const GeometrySrcState& geoSrc = this->getGeomSrc(); | 516 const GeometrySrcState& geoSrc = this->getGeomSrc(); |
529 SkASSERT(kArray_GeometrySrcType == geoSrc.fIndexSrc); | 517 SkASSERT(kArray_GeometrySrcType == geoSrc.fIndexSrc); |
530 size_t bytes = geoSrc.fIndexCount * sizeof(uint16_t); | 518 size_t bytes = geoSrc.fIndexCount * sizeof(uint16_t); |
531 fIndexPool->putBack(bytes); | 519 fIndexPool->putBack(bytes); |
532 --fIndexPoolUseCnt; | 520 --fIndexPoolUseCnt; |
533 } | 521 } |
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