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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrContext_DEFINED | 8 #ifndef GrContext_DEFINED |
9 #define GrContext_DEFINED | 9 #define GrContext_DEFINED |
10 | 10 |
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221 kDontFlush_PixelOpsFlag = 0x1, | 221 kDontFlush_PixelOpsFlag = 0x1, |
222 /** Any surface writes should be flushed to the backend 3D API after the
surface operation | 222 /** Any surface writes should be flushed to the backend 3D API after the
surface operation |
223 is complete */ | 223 is complete */ |
224 kFlushWrites_PixelOp = 0x2, | 224 kFlushWrites_PixelOp = 0x2, |
225 /** The src for write or dst read is unpremultiplied. This is only respe
cted if both the | 225 /** The src for write or dst read is unpremultiplied. This is only respe
cted if both the |
226 config src and dst configs are an RGBA/BGRA 8888 format. */ | 226 config src and dst configs are an RGBA/BGRA 8888 format. */ |
227 kUnpremul_PixelOpsFlag = 0x4, | 227 kUnpremul_PixelOpsFlag = 0x4, |
228 }; | 228 }; |
229 | 229 |
230 /** | 230 /** |
231 * Reads a rectangle of pixels from a render target. | 231 * Reads a rectangle of pixels from a surface. |
232 * @param target the render target to read from. | 232 * @param surface the surface to read from. |
233 * @param left left edge of the rectangle to read (inclusive) | 233 * @param left left edge of the rectangle to read (inclusive) |
234 * @param top top edge of the rectangle to read (inclusive) | 234 * @param top top edge of the rectangle to read (inclusive) |
235 * @param width width of rectangle to read in pixels. | 235 * @param width width of rectangle to read in pixels. |
236 * @param height height of rectangle to read in pixels. | 236 * @param height height of rectangle to read in pixels. |
237 * @param config the pixel config of the destination buffer | 237 * @param config the pixel config of the destination buffer |
238 * @param buffer memory to read the rectangle into. | 238 * @param buffer memory to read the rectangle into. |
239 * @param rowBytes number of bytes bewtween consecutive rows. Zero mean
s rows are tightly | 239 * @param rowBytes number of bytes bewtween consecutive rows. Zero mean
s rows are tightly |
240 * packed. | 240 * packed. |
241 * @param pixelOpsFlags see PixelOpsFlags enum above. | 241 * @param pixelOpsFlags see PixelOpsFlags enum above. |
242 * | 242 * |
243 * @return true if the read succeeded, false if not. The read can fail becau
se of an unsupported | 243 * @return true if the read succeeded, false if not. The read can fail becau
se of an unsupported |
244 * pixel config or because no render target is currently set and NUL
L was passed for | 244 * pixel configs |
245 * target. | |
246 */ | 245 */ |
247 bool readRenderTargetPixels(GrRenderTarget* target, | 246 bool readSurfacePixels(GrSurface* surface, |
248 int left, int top, int width, int height, | 247 int left, int top, int width, int height, |
249 GrPixelConfig config, void* buffer, | 248 GrPixelConfig config, void* buffer, |
250 size_t rowBytes = 0, | 249 size_t rowBytes = 0, |
251 uint32_t pixelOpsFlags = 0); | 250 uint32_t pixelOpsFlags = 0); |
252 | 251 |
253 /** | 252 /** |
254 * Writes a rectangle of pixels to a surface. | 253 * Writes a rectangle of pixels to a surface. |
255 * @param surface the surface to write to. | 254 * @param surface the surface to write to. |
256 * @param left left edge of the rectangle to write (inclusive) | 255 * @param left left edge of the rectangle to write (inclusive) |
257 * @param top top edge of the rectangle to write (inclusive) | 256 * @param top top edge of the rectangle to write (inclusive) |
258 * @param width width of rectangle to write in pixels. | 257 * @param width width of rectangle to write in pixels. |
259 * @param height height of rectangle to write in pixels. | 258 * @param height height of rectangle to write in pixels. |
260 * @param config the pixel config of the source buffer | 259 * @param config the pixel config of the source buffer |
261 * @param buffer memory to read pixels from | 260 * @param buffer memory to read pixels from |
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456 /** | 455 /** |
457 * A callback similar to the above for use by the TextBlobCache | 456 * A callback similar to the above for use by the TextBlobCache |
458 * TODO move textblob draw calls below context so we can use the call above. | 457 * TODO move textblob draw calls below context so we can use the call above. |
459 */ | 458 */ |
460 static void TextBlobCacheOverBudgetCB(void* data); | 459 static void TextBlobCacheOverBudgetCB(void* data); |
461 | 460 |
462 typedef SkRefCnt INHERITED; | 461 typedef SkRefCnt INHERITED; |
463 }; | 462 }; |
464 | 463 |
465 #endif | 464 #endif |
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