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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 GrGpu_DEFINED | 8 #ifndef GrGpu_DEFINED |
9 #define GrGpu_DEFINED | 9 #define GrGpu_DEFINED |
10 | 10 |
11 #include "GrPipelineBuilder.h" | 11 #include "GrPipelineBuilder.h" |
12 #include "GrProgramDesc.h" | 12 #include "GrProgramDesc.h" |
13 #include "GrStencil.h" | 13 #include "GrStencil.h" |
14 #include "GrSwizzle.h" | 14 #include "GrSwizzle.h" |
15 #include "GrAllocator.h" | 15 #include "GrAllocator.h" |
16 #include "GrTextureParamsAdjuster.h" | 16 #include "GrTextureParamsAdjuster.h" |
17 #include "GrTypes.h" | 17 #include "GrTypes.h" |
18 #include "GrXferProcessor.h" | 18 #include "GrXferProcessor.h" |
19 #include "SkPath.h" | 19 #include "SkPath.h" |
20 #include "SkTArray.h" | 20 #include "SkTArray.h" |
21 | 21 |
22 class GrBatchTracker; | 22 class GrBatchTracker; |
23 class GrBuffer; | |
24 class GrContext; | 23 class GrContext; |
25 class GrGLContext; | 24 class GrGLContext; |
| 25 class GrIndexBuffer; |
26 class GrMesh; | 26 class GrMesh; |
27 class GrNonInstancedVertices; | 27 class GrNonInstancedVertices; |
28 class GrPath; | 28 class GrPath; |
29 class GrPathRange; | 29 class GrPathRange; |
30 class GrPathRenderer; | 30 class GrPathRenderer; |
31 class GrPathRendererChain; | 31 class GrPathRendererChain; |
32 class GrPathRendering; | 32 class GrPathRendering; |
33 class GrPipeline; | 33 class GrPipeline; |
34 class GrPrimitiveProcessor; | 34 class GrPrimitiveProcessor; |
35 class GrRenderTarget; | 35 class GrRenderTarget; |
36 class GrStencilAttachment; | 36 class GrStencilAttachment; |
37 class GrSurface; | 37 class GrSurface; |
38 class GrTexture; | 38 class GrTexture; |
| 39 class GrTransferBuffer; |
| 40 class GrVertexBuffer; |
39 | 41 |
40 class GrGpu : public SkRefCnt { | 42 class GrGpu : public SkRefCnt { |
41 public: | 43 public: |
42 /** | 44 /** |
43 * Create an instance of GrGpu that matches the specified backend. If the re
quested backend is | 45 * Create an instance of GrGpu that matches the specified backend. If the re
quested backend is |
44 * not supported (at compile-time or run-time) this returns nullptr. The con
text will not be | 46 * not supported (at compile-time or run-time) this returns nullptr. The con
text will not be |
45 * fully constructed and should not be used by GrGpu until after this functi
on returns. | 47 * fully constructed and should not be used by GrGpu until after this functi
on returns. |
46 */ | 48 */ |
47 static GrGpu* Create(GrBackend, GrBackendContext, const GrContextOptions&, G
rContext* context); | 49 static GrGpu* Create(GrBackend, GrBackendContext, const GrContextOptions&, G
rContext* context); |
48 | 50 |
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120 * Implements GrTextureProvider::wrapBackendRenderTarget | 122 * Implements GrTextureProvider::wrapBackendRenderTarget |
121 */ | 123 */ |
122 GrRenderTarget* wrapBackendRenderTarget(const GrBackendRenderTargetDesc&, Gr
WrapOwnership); | 124 GrRenderTarget* wrapBackendRenderTarget(const GrBackendRenderTargetDesc&, Gr
WrapOwnership); |
123 | 125 |
124 /** | 126 /** |
125 * Implements GrTextureProvider::wrapBackendTextureAsRenderTarget | 127 * Implements GrTextureProvider::wrapBackendTextureAsRenderTarget |
126 */ | 128 */ |
127 GrRenderTarget* wrapBackendTextureAsRenderTarget(const GrBackendTextureDesc&
, GrWrapOwnership); | 129 GrRenderTarget* wrapBackendTextureAsRenderTarget(const GrBackendTextureDesc&
, GrWrapOwnership); |
128 | 130 |
129 /** | 131 /** |
130 * Creates a buffer. | 132 * Creates a vertex buffer. |
131 * | 133 * |
132 * @return the buffer if successful, otherwise nullptr. | 134 * @param size size in bytes of the vertex buffer |
| 135 * @param dynamic hints whether the data will be frequently changed |
| 136 * by either GrVertexBuffer::map() or |
| 137 * GrVertexBuffer::updateData(). |
| 138 * |
| 139 * @return The vertex buffer if successful, otherwise nullptr. |
133 */ | 140 */ |
134 GrBuffer* createBuffer(GrBufferType, size_t size, GrAccessPattern); | 141 GrVertexBuffer* createVertexBuffer(size_t size, bool dynamic); |
| 142 |
| 143 /** |
| 144 * Creates an index buffer. |
| 145 * |
| 146 * @param size size in bytes of the index buffer |
| 147 * @param dynamic hints whether the data will be frequently changed |
| 148 * by either GrIndexBuffer::map() or |
| 149 * GrIndexBuffer::updateData(). |
| 150 * |
| 151 * @return The index buffer if successful, otherwise nullptr. |
| 152 */ |
| 153 GrIndexBuffer* createIndexBuffer(size_t size, bool dynamic); |
| 154 |
| 155 /** |
| 156 * Creates a transfer buffer. |
| 157 * |
| 158 * @param size size in bytes of the index buffer |
| 159 * @param toGpu true if used to transfer from the cpu to the gpu |
| 160 * otherwise to be used to transfer from the gpu to the cpu |
| 161 * |
| 162 * @return The transfer buffer if successful, otherwise nullptr. |
| 163 */ |
| 164 GrTransferBuffer* createTransferBuffer(size_t size, TransferType type); |
135 | 165 |
136 /** | 166 /** |
137 * Resolves MSAA. | 167 * Resolves MSAA. |
138 */ | 168 */ |
139 void resolveRenderTarget(GrRenderTarget* target); | 169 void resolveRenderTarget(GrRenderTarget* target); |
140 | 170 |
141 /** Info struct returned by getReadPixelsInfo about performing intermediate
draws before | 171 /** Info struct returned by getReadPixelsInfo about performing intermediate
draws before |
142 reading pixels for performance or correctness. */ | 172 reading pixels for performance or correctness. */ |
143 struct ReadPixelTempDrawInfo { | 173 struct ReadPixelTempDrawInfo { |
144 /** If the GrGpu is requesting that the caller do a draw to an intermedi
ate surface then | 174 /** If the GrGpu is requesting that the caller do a draw to an intermedi
ate surface then |
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261 * @param buffer memory to read pixels from. | 291 * @param buffer memory to read pixels from. |
262 * @param rowBytes number of bytes between consecutive rows. Zero | 292 * @param rowBytes number of bytes between consecutive rows. Zero |
263 * means rows are tightly packed. | 293 * means rows are tightly packed. |
264 */ | 294 */ |
265 bool writePixels(GrSurface* surface, | 295 bool writePixels(GrSurface* surface, |
266 int left, int top, int width, int height, | 296 int left, int top, int width, int height, |
267 GrPixelConfig config, const void* buffer, | 297 GrPixelConfig config, const void* buffer, |
268 size_t rowBytes); | 298 size_t rowBytes); |
269 | 299 |
270 /** | 300 /** |
271 * Updates the pixels in a rectangle of a surface using a buffer | 301 * Updates the pixels in a rectangle of a surface using a GrTransferBuffer |
272 * | 302 * |
273 * @param surface The surface to write to. | 303 * @param surface The surface to write to. |
274 * @param left left edge of the rectangle to write (inclusive) | 304 * @param left left edge of the rectangle to write (inclusive) |
275 * @param top top edge of the rectangle to write (inclusive) | 305 * @param top top edge of the rectangle to write (inclusive) |
276 * @param width width of rectangle to write in pixels. | 306 * @param width width of rectangle to write in pixels. |
277 * @param height height of rectangle to write in pixels. | 307 * @param height height of rectangle to write in pixels. |
278 * @param config the pixel config of the source buffer | 308 * @param config the pixel config of the source buffer |
279 * @param transferBuffer GrBuffer to read pixels from (type must be "kCpuT
oGpu") | 309 * @param buffer GrTransferBuffer to read pixels from |
280 * @param offset offset from the start of the buffer | 310 * @param offset offset from the start of the buffer |
281 * @param rowBytes number of bytes between consecutive rows. Zero | 311 * @param rowBytes number of bytes between consecutive rows. Zero |
282 * means rows are tightly packed. | 312 * means rows are tightly packed. |
283 */ | 313 */ |
284 bool transferPixels(GrSurface* surface, | 314 bool transferPixels(GrSurface* surface, |
285 int left, int top, int width, int height, | 315 int left, int top, int width, int height, |
286 GrPixelConfig config, GrBuffer* transferBuffer, | 316 GrPixelConfig config, GrTransferBuffer* buffer, |
287 size_t offset, size_t rowBytes); | 317 size_t offset, size_t rowBytes); |
288 | 318 |
289 /** | 319 /** |
290 * Clear the passed in render target. Ignores the draw state and clip. | 320 * Clear the passed in render target. Ignores the draw state and clip. |
291 */ | 321 */ |
292 void clear(const SkIRect& rect, GrColor color, GrRenderTarget* renderTarget)
; | 322 void clear(const SkIRect& rect, GrColor color, GrRenderTarget* renderTarget)
; |
293 | 323 |
294 | 324 |
295 void clearStencilClip(const SkIRect& rect, bool insideClip, GrRenderTarget*
renderTarget); | 325 void clearStencilClip(const SkIRect& rect, bool insideClip, GrRenderTarget*
renderTarget); |
296 | 326 |
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521 const SkTArray<GrMipLevel>& texels) = 0; | 551 const SkTArray<GrMipLevel>& texels) = 0; |
522 virtual GrTexture* onCreateCompressedTexture(const GrSurfaceDesc& desc, | 552 virtual GrTexture* onCreateCompressedTexture(const GrSurfaceDesc& desc, |
523 GrGpuResource::LifeCycle lifeCy
cle, | 553 GrGpuResource::LifeCycle lifeCy
cle, |
524 const SkTArray<GrMipLevel>& tex
els) = 0; | 554 const SkTArray<GrMipLevel>& tex
els) = 0; |
525 | 555 |
526 virtual GrTexture* onWrapBackendTexture(const GrBackendTextureDesc&, GrWrapO
wnership) = 0; | 556 virtual GrTexture* onWrapBackendTexture(const GrBackendTextureDesc&, GrWrapO
wnership) = 0; |
527 virtual GrRenderTarget* onWrapBackendRenderTarget(const GrBackendRenderTarge
tDesc&, | 557 virtual GrRenderTarget* onWrapBackendRenderTarget(const GrBackendRenderTarge
tDesc&, |
528 GrWrapOwnership) = 0; | 558 GrWrapOwnership) = 0; |
529 virtual GrRenderTarget* onWrapBackendTextureAsRenderTarget(const GrBackendTe
xtureDesc&, | 559 virtual GrRenderTarget* onWrapBackendTextureAsRenderTarget(const GrBackendTe
xtureDesc&, |
530 GrWrapOwnership)
= 0; | 560 GrWrapOwnership)
= 0; |
531 virtual GrBuffer* onCreateBuffer(GrBufferType, size_t size, GrAccessPattern)
= 0; | 561 virtual GrVertexBuffer* onCreateVertexBuffer(size_t size, bool dynamic) = 0; |
| 562 virtual GrIndexBuffer* onCreateIndexBuffer(size_t size, bool dynamic) = 0; |
| 563 virtual GrTransferBuffer* onCreateTransferBuffer(size_t size, TransferType t
ype) = 0; |
532 | 564 |
533 // overridden by backend-specific derived class to perform the clear. | 565 // overridden by backend-specific derived class to perform the clear. |
534 virtual void onClear(GrRenderTarget*, const SkIRect& rect, GrColor color) =
0; | 566 virtual void onClear(GrRenderTarget*, const SkIRect& rect, GrColor color) =
0; |
535 | 567 |
536 // Overridden by backend specific classes to perform a clear of the stencil
clip bits. This is | 568 // Overridden by backend specific classes to perform a clear of the stencil
clip bits. This is |
537 // ONLY used by the the clip target | 569 // ONLY used by the the clip target |
538 virtual void onClearStencilClip(GrRenderTarget*, const SkIRect& rect, bool i
nsideClip) = 0; | 570 virtual void onClearStencilClip(GrRenderTarget*, const SkIRect& rect, bool i
nsideClip) = 0; |
539 | 571 |
540 // overridden by backend-specific derived class to perform the draw call. | 572 // overridden by backend-specific derived class to perform the draw call. |
541 virtual void onDraw(const GrPipeline&, | 573 virtual void onDraw(const GrPipeline&, |
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563 | 595 |
564 // overridden by backend-specific derived class to perform the surface write | 596 // overridden by backend-specific derived class to perform the surface write |
565 virtual bool onWritePixels(GrSurface*, | 597 virtual bool onWritePixels(GrSurface*, |
566 int left, int top, int width, int height, | 598 int left, int top, int width, int height, |
567 GrPixelConfig config, | 599 GrPixelConfig config, |
568 const SkTArray<GrMipLevel>& texels) = 0; | 600 const SkTArray<GrMipLevel>& texels) = 0; |
569 | 601 |
570 // overridden by backend-specific derived class to perform the surface write | 602 // overridden by backend-specific derived class to perform the surface write |
571 virtual bool onTransferPixels(GrSurface*, | 603 virtual bool onTransferPixels(GrSurface*, |
572 int left, int top, int width, int height, | 604 int left, int top, int width, int height, |
573 GrPixelConfig config, GrBuffer* transferBuffer
, | 605 GrPixelConfig config, GrTransferBuffer* buffer
, |
574 size_t offset, size_t rowBytes) = 0; | 606 size_t offset, size_t rowBytes) = 0; |
575 | 607 |
576 // overridden by backend-specific derived class to perform the resolve | 608 // overridden by backend-specific derived class to perform the resolve |
577 virtual void onResolveRenderTarget(GrRenderTarget* target) = 0; | 609 virtual void onResolveRenderTarget(GrRenderTarget* target) = 0; |
578 | 610 |
579 // overridden by backend specific derived class to perform the copy surface | 611 // overridden by backend specific derived class to perform the copy surface |
580 virtual bool onCopySurface(GrSurface* dst, | 612 virtual bool onCopySurface(GrSurface* dst, |
581 GrSurface* src, | 613 GrSurface* src, |
582 const SkIRect& srcRect, | 614 const SkIRect& srcRect, |
583 const SkIPoint& dstPoint) = 0; | 615 const SkIPoint& dstPoint) = 0; |
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599 SkTArray<const MultisampleSpecs*, true> fMultisa
mpleSpecsMap; | 631 SkTArray<const MultisampleSpecs*, true> fMultisa
mpleSpecsMap; |
600 GrTAllocator<MultisampleSpecs> fMultisa
mpleSpecsAllocator; | 632 GrTAllocator<MultisampleSpecs> fMultisa
mpleSpecsAllocator; |
601 // The context owns us, not vice-versa, so this ptr is not ref'ed by Gpu. | 633 // The context owns us, not vice-versa, so this ptr is not ref'ed by Gpu. |
602 GrContext* fContext
; | 634 GrContext* fContext
; |
603 | 635 |
604 friend class GrPathRendering; | 636 friend class GrPathRendering; |
605 typedef SkRefCnt INHERITED; | 637 typedef SkRefCnt INHERITED; |
606 }; | 638 }; |
607 | 639 |
608 #endif | 640 #endif |
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