1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
|
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrGLGpu_DEFINED
#define GrGLGpu_DEFINED
#include "GrGLContext.h"
#include "GrGLIRect.h"
#include "GrGLPathRendering.h"
#include "GrGLProgram.h"
#include "GrGLRenderTarget.h"
#include "GrGLStencilAttachment.h"
#include "GrGLTexture.h"
#include "GrGLVertexArray.h"
#include "GrGpu.h"
#include "GrMesh.h"
#include "GrWindowRectsState.h"
#include "GrXferProcessor.h"
#include "SkLRUCache.h"
#include "SkTArray.h"
#include "SkTypes.h"
class GrGLBuffer;
class GrPipeline;
class GrSwizzle;
namespace gr_instanced { class GLInstancedRendering; }
#ifdef SK_DEBUG
#define PROGRAM_CACHE_STATS
#endif
class GrGLGpu final : public GrGpu, private GrMesh::SendToGpuImpl {
public:
static GrGpu* Create(GrBackendContext backendContext, const GrContextOptions& options,
GrContext* context);
static GrGpu* Create(const GrGLInterface*, const GrContextOptions& options,
GrContext* context);
~GrGLGpu() override;
void disconnect(DisconnectType) override;
const GrGLContext& glContext() const { return *fGLContext; }
const GrGLInterface* glInterface() const { return fGLContext->interface(); }
const GrGLContextInfo& ctxInfo() const { return *fGLContext; }
GrGLStandard glStandard() const { return fGLContext->standard(); }
GrGLVersion glVersion() const { return fGLContext->version(); }
GrGLSLGeneration glslGeneration() const { return fGLContext->glslGeneration(); }
const GrGLCaps& glCaps() const { return *fGLContext->caps(); }
GrGLPathRendering* glPathRendering() {
SkASSERT(glCaps().shaderCaps()->pathRenderingSupport());
return static_cast<GrGLPathRendering*>(pathRendering());
}
// Used by GrGLProgram to configure OpenGL state.
void bindTexture(int unitIdx, const GrSamplerState& samplerState, bool allowSRGBInputs,
GrGLTexture* texture, GrSurfaceOrigin textureOrigin);
void bindTexelBuffer(int unitIdx, GrPixelConfig, GrGLBuffer*);
void bindImageStorage(int unitIdx, GrIOType, GrGLTexture *);
void generateMipmaps(const GrSamplerState& params, bool allowSRGBInputs, GrGLTexture* texture,
GrSurfaceOrigin textureOrigin);
bool onGetReadPixelsInfo(GrSurface* srcSurface, GrSurfaceOrigin srcOrigin,
int readWidth, int readHeight, size_t rowBytes,
GrPixelConfig readConfig, DrawPreference*,
ReadPixelTempDrawInfo*) override;
bool onGetWritePixelsInfo(GrSurface* dstSurface, GrSurfaceOrigin dstOrigin,
int width, int height,
GrPixelConfig srcConfig, DrawPreference*,
WritePixelTempDrawInfo*) override;
// These functions should be used to bind GL objects. They track the GL state and skip redundant
// bindings. Making the equivalent glBind calls directly will confuse the state tracking.
void bindVertexArray(GrGLuint id) {
fHWVertexArrayState.setVertexArrayID(this, id);
}
// These callbacks update state tracking when GL objects are deleted. They are called from
// GrGLResource onRelease functions.
void notifyVertexArrayDelete(GrGLuint id) {
fHWVertexArrayState.notifyVertexArrayDelete(id);
}
// Binds a buffer to the GL target corresponding to 'type', updates internal state tracking, and
// returns the GL target the buffer was bound to.
// When 'type' is kIndex_GrBufferType, this function will also implicitly bind the default VAO.
// If the caller wishes to bind an index buffer to a specific VAO, it can call glBind directly.
GrGLenum bindBuffer(GrBufferType type, const GrBuffer*);
// Called by GrGLBuffer after its buffer object has been destroyed.
void notifyBufferReleased(const GrGLBuffer*);
// The GrGLGpuRTCommandBuffer does not buffer up draws before submitting them to the gpu.
// Thus this is the implementation of the draw call for the corresponding passthrough function
// on GrGLRTGpuCommandBuffer.
void draw(const GrPipeline&,
const GrPrimitiveProcessor&,
const GrMesh[],
const GrPipeline::DynamicState[],
int meshCount);
// GrMesh::SendToGpuImpl methods. These issue the actual GL draw calls.
// Marked final as a hint to the compiler to not use virtual dispatch.
void sendMeshToGpu(const GrPrimitiveProcessor&, GrPrimitiveType,
const GrBuffer* vertexBuffer, int vertexCount, int baseVertex) final;
void sendIndexedMeshToGpu(const GrPrimitiveProcessor&, GrPrimitiveType,
const GrBuffer* indexBuffer, int indexCount, int baseIndex,
uint16_t minIndexValue, uint16_t maxIndexValue,
const GrBuffer* vertexBuffer, int baseVertex) final;
void sendInstancedMeshToGpu(const GrPrimitiveProcessor&, GrPrimitiveType,
const GrBuffer* vertexBuffer, int vertexCount, int baseVertex,
const GrBuffer* instanceBuffer, int instanceCount,
int baseInstance) final;
void sendIndexedInstancedMeshToGpu(const GrPrimitiveProcessor&, GrPrimitiveType,
const GrBuffer* indexBuffer, int indexCount, int baseIndex,
const GrBuffer* vertexBuffer, int baseVertex,
const GrBuffer* instanceBuffer, int instanceCount,
int baseInstance) final;
// The GrGLGpuRTCommandBuffer does not buffer up draws before submitting them to the gpu.
// Thus this is the implementation of the clear call for the corresponding passthrough function
// on GrGLGpuRTCommandBuffer.
void clear(const GrFixedClip&, GrColor, GrRenderTarget*, GrSurfaceOrigin);
// The GrGLGpuRTCommandBuffer does not buffer up draws before submitting them to the gpu.
// Thus this is the implementation of the clearStencil call for the corresponding passthrough
// function on GrGLGpuRTCommandBuffer.
void clearStencilClip(const GrFixedClip&, bool insideStencilMask,
GrRenderTarget*, GrSurfaceOrigin);
const GrGLContext* glContextForTesting() const override {
return &this->glContext();
}
void clearStencil(GrRenderTarget*, int clearValue) override;
GrGpuRTCommandBuffer* createCommandBuffer(
GrRenderTarget*, GrSurfaceOrigin,
const GrGpuRTCommandBuffer::LoadAndStoreInfo&,
const GrGpuRTCommandBuffer::StencilLoadAndStoreInfo&) override;
GrGpuTextureCommandBuffer* createCommandBuffer(GrTexture*, GrSurfaceOrigin) override;
void invalidateBoundRenderTarget() {
fHWBoundRenderTargetUniqueID.makeInvalid();
}
GrStencilAttachment* createStencilAttachmentForRenderTarget(const GrRenderTarget* rt,
int width,
int height) override;
GrBackendObject createTestingOnlyBackendTexture(void* pixels, int w, int h,
GrPixelConfig config,
bool isRenderTarget = false) override;
bool isTestingOnlyBackendTexture(GrBackendObject) const override;
void deleteTestingOnlyBackendTexture(GrBackendObject, bool abandonTexture) override;
void resetShaderCacheForTesting() const override;
GrFence SK_WARN_UNUSED_RESULT insertFence() override;
bool waitFence(GrFence, uint64_t timeout) override;
void deleteFence(GrFence) const override;
sk_sp<GrSemaphore> SK_WARN_UNUSED_RESULT makeSemaphore(bool isOwned) override;
sk_sp<GrSemaphore> wrapBackendSemaphore(const GrBackendSemaphore& semaphore,
GrWrapOwnership ownership) override;
void insertSemaphore(sk_sp<GrSemaphore> semaphore, bool flush) override;
void waitSemaphore(sk_sp<GrSemaphore> semaphore) override;
sk_sp<GrSemaphore> prepareTextureForCrossContextUsage(GrTexture*) override;
void deleteSync(GrGLsync) const;
void insertEventMarker(const char*);
private:
GrGLGpu(GrGLContext* ctx, GrContext* context);
// GrGpu overrides
void onResetContext(uint32_t resetBits) override;
void xferBarrier(GrRenderTarget*, GrXferBarrierType) override;
sk_sp<GrTexture> onCreateTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
const GrMipLevel texels[],
int mipLevelCount) override;
GrBuffer* onCreateBuffer(size_t size, GrBufferType intendedType, GrAccessPattern,
const void* data) override;
sk_sp<GrTexture> onWrapBackendTexture(const GrBackendTexture&, GrWrapOwnership) override;
sk_sp<GrTexture> onWrapRenderableBackendTexture(const GrBackendTexture&,
int sampleCnt,
GrWrapOwnership) override;
sk_sp<GrRenderTarget> onWrapBackendRenderTarget(const GrBackendRenderTarget&) override;
sk_sp<GrRenderTarget> onWrapBackendTextureAsRenderTarget(const GrBackendTexture&,
int sampleCnt) override;
std::unique_ptr<gr_instanced::OpAllocator> onCreateInstancedRenderingAllocator() override;
gr_instanced::InstancedRendering* onCreateInstancedRendering() override;
// Given a GrPixelConfig return the index into the stencil format array on GrGLCaps to a
// compatible stencil format, or negative if there is no compatible stencil format.
int getCompatibleStencilIndex(GrPixelConfig config);
// Returns whether the texture is successfully created. On success, the
// result is stored in |info|.
// The texture is populated with |texels|, if it exists.
// The texture parameters are cached in |initialTexParams|.
bool createTextureImpl(const GrSurfaceDesc& desc, GrGLTextureInfo* info,
bool renderTarget, GrGLTexture::TexParams* initialTexParams,
const GrMipLevel texels[], int mipLevelCount);
bool onIsACopyNeededForTextureParams(GrTextureProxy*, const GrSamplerState&,
GrTextureProducer::CopyParams*,
SkScalar scaleAdjust[2]) const override;
// Checks whether glReadPixels can be called to get pixel values in readConfig from the
// render target.
bool readPixelsSupported(GrRenderTarget* target, GrPixelConfig readConfig);
// Checks whether glReadPixels can be called to get pixel values in readConfig from a
// render target that has renderTargetConfig. This may have to create a temporary
// render target and thus is less preferable than the variant that takes a render target.
bool readPixelsSupported(GrPixelConfig renderTargetConfig, GrPixelConfig readConfig);
// Checks whether glReadPixels can be called to get pixel values in readConfig from a
// render target that has the same config as surfaceForConfig. Calls one of the the two
// variations above, depending on whether the surface is a render target or not.
bool readPixelsSupported(GrSurface* surfaceForConfig, GrPixelConfig readConfig);
bool onReadPixels(GrSurface*, GrSurfaceOrigin,
int left, int top,
int width, int height,
GrPixelConfig,
void* buffer,
size_t rowBytes) override;
bool onWritePixels(GrSurface*, GrSurfaceOrigin,
int left, int top, int width, int height,
GrPixelConfig config,
const GrMipLevel texels[], int mipLevelCount) override;
bool onTransferPixels(GrTexture*,
int left, int top, int width, int height,
GrPixelConfig config, GrBuffer* transferBuffer,
size_t offset, size_t rowBytes) override;
// Before calling any variation of TexImage, TexSubImage, etc..., call this to ensure that the
// PIXEL_UNPACK_BUFFER is unbound.
void unbindCpuToGpuXferBuffer();
void onResolveRenderTarget(GrRenderTarget* target, GrSurfaceOrigin) override;
bool onCopySurface(GrSurface* dst, GrSurfaceOrigin dstOrigin,
GrSurface* src, GrSurfaceOrigin srcOrigin,
const SkIRect& srcRect, const SkIPoint& dstPoint) override;
void onQueryMultisampleSpecs(GrRenderTarget*, GrSurfaceOrigin, const GrStencilSettings&,
int* effectiveSampleCnt, SamplePattern*) override;
// binds texture unit in GL
void setTextureUnit(int unitIdx);
void setTextureSwizzle(int unitIdx, GrGLenum target, const GrGLenum swizzle[]);
// Flushes state from GrPipeline to GL. Returns false if the state couldn't be set.
// willDrawPoints must be true if point primitives will be rendered after setting the GL state.
bool flushGLState(const GrPipeline&, const GrPrimitiveProcessor&, bool willDrawPoints);
// Sets up vertex/instance attribute pointers and strides.
void setupGeometry(const GrPrimitiveProcessor&,
const GrBuffer* indexBuffer,
const GrBuffer* vertexBuffer,
int baseVertex,
const GrBuffer* instanceBuffer,
int baseInstance);
void flushBlend(const GrXferProcessor::BlendInfo& blendInfo, const GrSwizzle&);
void onFinishFlush(bool insertedSemaphores) override;
bool hasExtension(const char* ext) const { return fGLContext->hasExtension(ext); }
bool copySurfaceAsDraw(GrSurface* dst, GrSurfaceOrigin dstOrigin,
GrSurface* src, GrSurfaceOrigin srcOrigin,
const SkIRect& srcRect, const SkIPoint& dstPoint);
void copySurfaceAsCopyTexSubImage(GrSurface* dst, GrSurfaceOrigin dstOrigin,
GrSurface* src, GrSurfaceOrigin srcOrigin,
const SkIRect& srcRect, const SkIPoint& dstPoint);
bool copySurfaceAsBlitFramebuffer(GrSurface* dst, GrSurfaceOrigin dstOrigin,
GrSurface* src, GrSurfaceOrigin srcOrigin,
const SkIRect& srcRect, const SkIPoint& dstPoint);
bool generateMipmap(GrGLTexture* texture, GrSurfaceOrigin textureOrigin, bool gammaCorrect);
void clearStencilClipAsDraw(const GrFixedClip&, bool insideStencilMask,
GrRenderTarget*, GrSurfaceOrigin);
static bool BlendCoeffReferencesConstant(GrBlendCoeff coeff);
class ProgramCache : public ::SkNoncopyable {
public:
ProgramCache(GrGLGpu* gpu);
~ProgramCache();
void abandon();
GrGLProgram* refProgram(const GrGLGpu*, const GrPipeline&, const GrPrimitiveProcessor&,
bool hasPointSize);
private:
// We may actually have kMaxEntries+1 shaders in the GL context because we create a new
// shader before evicting from the cache.
static const int kMaxEntries = 128;
struct Entry;
// binary search for entry matching desc. returns index into fEntries that matches desc or ~
// of the index of where it should be inserted.
int search(const GrProgramDesc& desc) const;
struct DescHash {
uint32_t operator()(const GrProgramDesc& desc) const {
return SkOpts::hash_fn(desc.asKey(), desc.keyLength(), 0);
}
};
SkLRUCache<GrProgramDesc, std::unique_ptr<Entry>, DescHash> fMap;
GrGLGpu* fGpu;
#ifdef PROGRAM_CACHE_STATS
int fTotalRequests;
int fCacheMisses;
int fHashMisses; // cache hit but hash table missed
#endif
};
void flushColorWrite(bool writeColor);
// flushes the scissor. see the note on flushBoundTextureAndParams about
// flushing the scissor after that function is called.
void flushScissor(const GrScissorState&,
const GrGLIRect& rtViewport,
GrSurfaceOrigin rtOrigin);
// disables the scissor
void disableScissor();
void flushWindowRectangles(const GrWindowRectsState&, const GrGLRenderTarget*, GrSurfaceOrigin);
void disableWindowRectangles();
// sets a texture unit to use for texture operations other than binding a texture to a program.
// ensures that such operations don't negatively interact with tracking bound textures.
void setScratchTextureUnit();
// bounds is region that may be modified.
// nullptr means whole target. Can be an empty rect.
void flushRenderTarget(GrGLRenderTarget*, const SkIRect* bounds, bool disableSRGB = false);
// Need not be called if flushRenderTarget is used.
void flushViewport(const GrGLIRect&);
void flushStencil(const GrStencilSettings&);
void disableStencil();
// rt is used only if useHWAA is true.
void flushHWAAState(GrRenderTarget* rt, bool useHWAA, bool stencilEnabled);
void flushMinSampleShading(float minSampleShading);
void flushFramebufferSRGB(bool enable);
// helper for onCreateTexture and writeTexturePixels
enum UploadType {
kNewTexture_UploadType, // we are creating a new texture
kWrite_UploadType, // we are using TexSubImage2D to copy data to an existing texture
};
bool uploadTexData(GrPixelConfig texConfig, int texWidth, int texHeight,
GrSurfaceOrigin texOrigin, GrGLenum target, UploadType uploadType, int left,
int top, int width, int height, GrPixelConfig dataConfig,
const GrMipLevel texels[], int mipLevelCount);
bool createRenderTargetObjects(const GrSurfaceDesc&, const GrGLTextureInfo& texInfo,
GrGLRenderTarget::IDDesc*);
enum TempFBOTarget {
kSrc_TempFBOTarget,
kDst_TempFBOTarget
};
// Binds a surface as a FBO for copying, reading, or clearing. If the surface already owns an
// FBO ID then that ID is bound. If not the surface is temporarily bound to a FBO and that FBO
// is bound. This must be paired with a call to unbindSurfaceFBOForPixelOps().
void bindSurfaceFBOForPixelOps(GrSurface* surface, GrGLenum fboTarget, GrGLIRect* viewport,
TempFBOTarget tempFBOTarget);
// Must be called if bindSurfaceFBOForPixelOps was used to bind a surface for copying.
void unbindTextureFBOForPixelOps(GrGLenum fboTarget, GrSurface* surface);
void onDumpJSON(SkJSONWriter*) const override;
sk_sp<GrGLContext> fGLContext;
bool createCopyProgram(GrTexture* srcTexture);
bool createMipmapProgram(int progIdx);
bool createStencilClipClearProgram();
// GL program-related state
ProgramCache* fProgramCache;
///////////////////////////////////////////////////////////////////////////
///@name Caching of GL State
///@{
int fHWActiveTextureUnitIdx;
GrGLuint fHWProgramID;
enum TriState {
kNo_TriState,
kYes_TriState,
kUnknown_TriState
};
GrGLuint fTempSrcFBOID;
GrGLuint fTempDstFBOID;
GrGLuint fStencilClearFBOID;
// last scissor / viewport scissor state seen by the GL.
struct {
TriState fEnabled;
GrGLIRect fRect;
void invalidate() {
fEnabled = kUnknown_TriState;
fRect.invalidate();
}
} fHWScissorSettings;
class {
public:
bool valid() const { return kInvalidSurfaceOrigin != fRTOrigin; }
void invalidate() { fRTOrigin = kInvalidSurfaceOrigin; }
bool knownDisabled() const { return this->valid() && !fWindowState.enabled(); }
void setDisabled() {
fRTOrigin = kTopLeft_GrSurfaceOrigin;
fWindowState.setDisabled();
}
void set(GrSurfaceOrigin rtOrigin, const GrGLIRect& viewport,
const GrWindowRectsState& windowState) {
fRTOrigin = rtOrigin;
fViewport = viewport;
fWindowState = windowState;
}
bool knownEqualTo(GrSurfaceOrigin rtOrigin, const GrGLIRect& viewport,
const GrWindowRectsState& windowState) const {
if (!this->valid()) {
return false;
}
if (fWindowState.numWindows() && (fRTOrigin != rtOrigin || fViewport != viewport)) {
return false;
}
return fWindowState == windowState;
}
private:
enum { kInvalidSurfaceOrigin = -1 };
int fRTOrigin;
GrGLIRect fViewport;
GrWindowRectsState fWindowState;
} fHWWindowRectsState;
GrGLIRect fHWViewport;
/**
* Tracks vertex attrib array state.
*/
class HWVertexArrayState {
public:
HWVertexArrayState() : fCoreProfileVertexArray(nullptr) { this->invalidate(); }
~HWVertexArrayState() { delete fCoreProfileVertexArray; }
void invalidate() {
fBoundVertexArrayIDIsValid = false;
fDefaultVertexArrayAttribState.invalidate();
if (fCoreProfileVertexArray) {
fCoreProfileVertexArray->invalidateCachedState();
}
}
void notifyVertexArrayDelete(GrGLuint id) {
if (fBoundVertexArrayIDIsValid && fBoundVertexArrayID == id) {
// Does implicit bind to 0
fBoundVertexArrayID = 0;
}
}
void setVertexArrayID(GrGLGpu* gpu, GrGLuint arrayID) {
if (!gpu->glCaps().vertexArrayObjectSupport()) {
SkASSERT(0 == arrayID);
return;
}
if (!fBoundVertexArrayIDIsValid || arrayID != fBoundVertexArrayID) {
GR_GL_CALL(gpu->glInterface(), BindVertexArray(arrayID));
fBoundVertexArrayIDIsValid = true;
fBoundVertexArrayID = arrayID;
}
}
/**
* Binds the vertex array that should be used for internal draws, and returns its attrib
* state. This binds the default VAO (ID=zero) unless we are on a core profile, in which
* case we use a dummy array instead.
*
* If an index buffer is privided, it will be bound to the vertex array. Otherwise the
* index buffer binding will be left unchanged.
*
* The returned GrGLAttribArrayState should be used to set vertex attribute arrays.
*/
GrGLAttribArrayState* bindInternalVertexArray(GrGLGpu*, const GrBuffer* ibuff = nullptr);
private:
GrGLuint fBoundVertexArrayID;
bool fBoundVertexArrayIDIsValid;
// We return a non-const pointer to this from bindArrayAndBuffersToDraw when vertex array 0
// is bound. However, this class is internal to GrGLGpu and this object never leaks out of
// GrGLGpu.
GrGLAttribArrayState fDefaultVertexArrayAttribState;
// This is used when we're using a core profile.
GrGLVertexArray* fCoreProfileVertexArray;
} fHWVertexArrayState;
struct {
GrGLenum fGLTarget;
GrGpuResource::UniqueID fBoundBufferUniqueID;
bool fBufferZeroKnownBound;
void invalidate() {
fBoundBufferUniqueID.makeInvalid();
fBufferZeroKnownBound = false;
}
} fHWBufferState[kGrBufferTypeCount];
struct {
GrBlendEquation fEquation;
GrBlendCoeff fSrcCoeff;
GrBlendCoeff fDstCoeff;
GrColor fConstColor;
bool fConstColorValid;
TriState fEnabled;
void invalidate() {
fEquation = static_cast<GrBlendEquation>(-1);
fSrcCoeff = static_cast<GrBlendCoeff>(-1);
fDstCoeff = static_cast<GrBlendCoeff>(-1);
fConstColorValid = false;
fEnabled = kUnknown_TriState;
}
} fHWBlendState;
TriState fMSAAEnabled;
GrStencilSettings fHWStencilSettings;
TriState fHWStencilTestEnabled;
TriState fHWWriteToColor;
GrGpuResource::UniqueID fHWBoundRenderTargetUniqueID;
TriState fHWSRGBFramebuffer;
SkTArray<GrGpuResource::UniqueID, true> fHWBoundTextureUniqueIDs;
struct Image {
GrGpuResource::UniqueID fTextureUniqueID;
GrIOType fIOType;
};
SkTArray<Image, true> fHWBoundImageStorages;
struct BufferTexture {
BufferTexture() : fTextureID(0), fKnownBound(false),
fAttachedBufferUniqueID(SK_InvalidUniqueID),
fSwizzle(GrSwizzle::RGBA()) {}
GrGLuint fTextureID;
bool fKnownBound;
GrPixelConfig fTexelConfig;
GrGpuResource::UniqueID fAttachedBufferUniqueID;
GrSwizzle fSwizzle;
};
SkTArray<BufferTexture, true> fHWBufferTextures;
int fHWMaxUsedBufferTextureUnit;
// EXT_raster_multisample.
TriState fHWRasterMultisampleEnabled;
int fHWNumRasterSamples;
///@}
/** IDs for copy surface program. (4 sampler types) */
struct {
GrGLuint fProgram;
GrGLint fTextureUniform;
GrGLint fTexCoordXformUniform;
GrGLint fPosXformUniform;
} fCopyPrograms[4];
sk_sp<GrGLBuffer> fCopyProgramArrayBuffer;
/** IDs for texture mipmap program. (4 filter configurations) */
struct {
GrGLuint fProgram;
GrGLint fTextureUniform;
GrGLint fTexCoordXformUniform;
} fMipmapPrograms[4];
sk_sp<GrGLBuffer> fMipmapProgramArrayBuffer;
GrGLuint fStencilClipClearProgram;
sk_sp<GrGLBuffer> fStencilClipClearArrayBuffer;
static int TextureToCopyProgramIdx(GrTexture* texture);
static int TextureSizeToMipmapProgramIdx(int width, int height) {
const bool wide = (width > 1) && SkToBool(width & 0x1);
const bool tall = (height > 1) && SkToBool(height & 0x1);
return (wide ? 0x2 : 0x0) | (tall ? 0x1 : 0x0);
}
float fHWMinSampleShading;
GrPrimitiveType fLastPrimitiveType;
typedef GrGpu INHERITED;
friend class GrGLPathRendering; // For accessing setTextureUnit.
friend class gr_instanced::GLInstancedRendering; // For accessing flushGLState.
};
#endif
|