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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 GrGLGpu_DEFINED | 8 #ifndef GrGLGpu_DEFINED |
9 #define GrGLGpu_DEFINED | 9 #define GrGLGpu_DEFINED |
10 | 10 |
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237 | 237 |
238 void initFSAASupport(); | 238 void initFSAASupport(); |
239 | 239 |
240 // determines valid stencil formats | 240 // determines valid stencil formats |
241 void initStencilFormats(); | 241 void initStencilFormats(); |
242 | 242 |
243 // sets a texture unit to use for texture operations other than binding a te
xture to a program. | 243 // sets a texture unit to use for texture operations other than binding a te
xture to a program. |
244 // ensures that such operations don't negatively interact with tracking boun
d textures. | 244 // ensures that such operations don't negatively interact with tracking boun
d textures. |
245 void setScratchTextureUnit(); | 245 void setScratchTextureUnit(); |
246 | 246 |
247 // bounds is region that may be modified and therefore has to be resolved. | 247 // Enumerates the reasons for binding an FBO. |
248 // NULL means whole target. Can be an empty rect. | 248 enum FBOBinding { |
249 void flushRenderTarget(GrGLRenderTarget*, const SkIRect* bounds); | 249 kDraw_FBOBinding, |
| 250 kClear_FBOBinding, |
| 251 kDiscard_FBOBinding, |
| 252 kChangeAttachments_FBOBinding, |
| 253 kReadPixels_FBOBinding, |
| 254 kCopyTexSrc_FBOBinding, |
| 255 kBlitSrc_FBOBinding, |
| 256 kBlitDst_FBOBinding, |
| 257 }; |
| 258 |
| 259 // binds the FBO and returns the GL enum of the framebuffer target it was bo
und to. |
| 260 GrGLenum bindFBO(FBOBinding, const GrGLFBO*); |
| 261 |
| 262 // Tracks dirty area for resolve, and tracks whether mip maps need rebuildin
g. bounds is the |
| 263 // region that may be modified. NULL means whole surface. Can be an empty re
ct. |
| 264 void markSurfaceContentsDirty(GrSurface*, const SkIRect* bounds); |
| 265 |
| 266 void setViewport(const GrGLIRect& viewport); |
250 | 267 |
251 void flushStencil(const GrStencilSettings&); | 268 void flushStencil(const GrStencilSettings&); |
| 269 |
252 void flushHWAAState(GrRenderTarget* rt, bool useHWAA); | 270 void flushHWAAState(GrRenderTarget* rt, bool useHWAA); |
253 | 271 |
254 bool configToGLFormats(GrPixelConfig config, | 272 bool configToGLFormats(GrPixelConfig config, |
255 bool getSizedInternal, | 273 bool getSizedInternal, |
256 GrGLenum* internalFormat, | 274 GrGLenum* internalFormat, |
257 GrGLenum* externalFormat, | 275 GrGLenum* externalFormat, |
258 GrGLenum* externalType); | 276 GrGLenum* externalType); |
259 // helper for onCreateTexture and writeTexturePixels | 277 // helper for onCreateTexture and writeTexturePixels |
260 bool uploadTexData(const GrSurfaceDesc& desc, | 278 bool uploadTexData(const GrSurfaceDesc& desc, |
261 bool isNewTexture, | 279 bool isNewTexture, |
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272 // with new data. | 290 // with new data. |
273 bool uploadCompressedTexData(const GrSurfaceDesc& desc, | 291 bool uploadCompressedTexData(const GrSurfaceDesc& desc, |
274 const void* data, | 292 const void* data, |
275 bool isNewTexture = true, | 293 bool isNewTexture = true, |
276 int left = 0, int top = 0, | 294 int left = 0, int top = 0, |
277 int width = -1, int height = -1); | 295 int width = -1, int height = -1); |
278 | 296 |
279 bool createRenderTargetObjects(const GrSurfaceDesc&, bool budgeted, GrGLuint
texID, | 297 bool createRenderTargetObjects(const GrSurfaceDesc&, bool budgeted, GrGLuint
texID, |
280 GrGLRenderTarget::IDDesc*); | 298 GrGLRenderTarget::IDDesc*); |
281 | 299 |
282 enum TempFBOTarget { | 300 static const FBOBinding kInvalidFBOBinding = static_cast<FBOBinding>(-1); |
283 kSrc_TempFBOTarget, | |
284 kDst_TempFBOTarget | |
285 }; | |
286 | 301 |
287 GrGLuint bindSurfaceAsFBO(GrSurface* surface, GrGLenum fboTarget, GrGLIRect*
viewport, | 302 // Binds a surface as an FBO. A temporary FBO ID may be used if the surface
is not already |
288 TempFBOTarget tempFBOTarget); | 303 // a render target. Afterwards unbindSurfaceAsFBOForCopy must be called with
the value returned. |
| 304 FBOBinding bindSurfaceAsFBOForCopy(GrSurface*, FBOBinding, GrGLIRect* viewpo
rt); |
289 | 305 |
290 void unbindTextureFromFBO(GrGLenum fboTarget); | 306 // Must be matched with bindSurfaceAsFBOForCopy. |
| 307 void unbindSurfaceAsFBOForCopy(FBOBinding); |
291 | 308 |
292 GrGLContext fGLContext; | 309 GrGLContext fGLContext; |
293 | 310 |
294 // GL program-related state | 311 // GL program-related state |
295 ProgramCache* fProgramCache; | 312 ProgramCache* fProgramCache; |
296 SkAutoTUnref<GrGLProgram> fCurrentProgram; | 313 SkAutoTUnref<GrGLProgram> fCurrentProgram; |
297 | 314 |
298 /////////////////////////////////////////////////////////////////////////// | 315 /////////////////////////////////////////////////////////////////////////// |
299 ///@name Caching of GL State | 316 ///@name Caching of GL State |
300 ///@{ | 317 ///@{ |
301 int fHWActiveTextureUnitIdx; | 318 int fHWActiveTextureUnitIdx; |
302 GrGLuint fHWProgramID; | 319 GrGLuint fHWProgramID; |
303 | 320 |
304 enum TriState { | 321 enum TriState { |
305 kNo_TriState, | 322 kNo_TriState, |
306 kYes_TriState, | 323 kYes_TriState, |
307 kUnknown_TriState | 324 kUnknown_TriState |
308 }; | 325 }; |
309 | 326 |
310 GrGLuint fTempSrcFBOID; | 327 SkAutoTUnref<GrGLFBO> fTempSrcFBO; |
311 GrGLuint fTempDstFBOID; | 328 SkAutoTUnref<GrGLFBO> fTempDstFBO; |
312 | 329 SkAutoTUnref<GrGLFBO> fStencilClearFBO; |
313 GrGLuint fStencilClearFBOID; | |
314 | 330 |
315 // last scissor / viewport scissor state seen by the GL. | 331 // last scissor / viewport scissor state seen by the GL. |
316 struct { | 332 struct { |
317 TriState fEnabled; | 333 TriState fEnabled; |
318 GrGLIRect fRect; | 334 GrGLIRect fRect; |
319 void invalidate() { | 335 void invalidate() { |
320 fEnabled = kUnknown_TriState; | 336 fEnabled = kUnknown_TriState; |
321 fRect.invalidate(); | 337 fRect.invalidate(); |
322 } | 338 } |
323 } fHWScissorSettings; | 339 } fHWScissorSettings; |
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449 | 465 |
450 TriState fMSAAEnabled; | 466 TriState fMSAAEnabled; |
451 | 467 |
452 GrStencilSettings fHWStencilSettings; | 468 GrStencilSettings fHWStencilSettings; |
453 TriState fHWStencilTestEnabled; | 469 TriState fHWStencilTestEnabled; |
454 | 470 |
455 | 471 |
456 GrPipelineBuilder::DrawFace fHWDrawFace; | 472 GrPipelineBuilder::DrawFace fHWDrawFace; |
457 TriState fHWWriteToColor; | 473 TriState fHWWriteToColor; |
458 TriState fHWDitherEnabled; | 474 TriState fHWDitherEnabled; |
459 uint32_t fHWBoundRenderTargetUniqueID; | |
460 SkTArray<uint32_t, true> fHWBoundTextureUniqueIDs; | 475 SkTArray<uint32_t, true> fHWBoundTextureUniqueIDs; |
461 | 476 |
| 477 // Track fbo binding state for GL_DRAW_FRAMEBUFFER and GL_READ_FRAMEBUFFER |
| 478 struct HWFBOBinding { |
| 479 SkAutoTUnref<const GrGLFBO> fFBO; |
| 480 void invalidate() { fFBO.reset(NULL); } |
| 481 } fHWFBOBinding[2]; |
| 482 |
462 ///@} | 483 ///@} |
463 | 484 |
464 // we record what stencil format worked last time to hopefully exit early | 485 // we record what stencil format worked last time to hopefully exit early |
465 // from our loop that tries stencil formats and calls check fb status. | 486 // from our loop that tries stencil formats and calls check fb status. |
466 int fLastSuccessfulStencilFmtIdx; | 487 int fLastSuccessfulStencilFmtIdx; |
467 | 488 |
468 typedef GrGpu INHERITED; | 489 typedef GrGpu INHERITED; |
469 friend class GrGLPathRendering; // For accessing setTextureUnit. | 490 friend class GrGLPathRendering; // For accessing setTextureUnit. |
470 }; | 491 }; |
471 | 492 |
472 #endif | 493 #endif |
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