aboutsummaryrefslogtreecommitdiffhomepage
path: root/src/gpu/GrResourceProvider.cpp
blob: 2145190ee2df45f42adf6b20e73de8d13194580a (plain)
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
/*
 * Copyright 2015 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "GrResourceProvider.h"

#include "GrBackendSemaphore.h"
#include "GrBuffer.h"
#include "GrCaps.h"
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrGpu.h"
#include "GrPath.h"
#include "GrPathRendering.h"
#include "GrProxyProvider.h"
#include "GrRenderTargetPriv.h"
#include "GrResourceCache.h"
#include "GrResourceKey.h"
#include "GrSemaphore.h"
#include "GrStencilAttachment.h"
#include "GrTexturePriv.h"
#include "../private/GrSingleOwner.h"
#include "SkGr.h"
#include "SkMathPriv.h"

GR_DECLARE_STATIC_UNIQUE_KEY(gQuadIndexBufferKey);

const uint32_t GrResourceProvider::kMinScratchTextureSize = 16;

#ifdef SK_DISABLE_EXPLICIT_GPU_RESOURCE_ALLOCATION
static const bool kDefaultExplicitlyAllocateGPUResources = false;
#else
static const bool kDefaultExplicitlyAllocateGPUResources = true;
#endif

#define ASSERT_SINGLE_OWNER \
    SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(fSingleOwner);)

GrResourceProvider::GrResourceProvider(GrGpu* gpu, GrResourceCache* cache, GrSingleOwner* owner,
                                       GrContextOptions::Enable explicitlyAllocateGPUResources)
        : fCache(cache)
        , fGpu(gpu)
#ifdef SK_DEBUG
        , fSingleOwner(owner)
#endif
{
    if (GrContextOptions::Enable::kNo == explicitlyAllocateGPUResources) {
        fExplicitlyAllocateGPUResources = false;
    } else if (GrContextOptions::Enable::kYes == explicitlyAllocateGPUResources) {
        fExplicitlyAllocateGPUResources = true;
    } else {
        fExplicitlyAllocateGPUResources = kDefaultExplicitlyAllocateGPUResources;
    }

    fCaps = sk_ref_sp(fGpu->caps());

    GR_DEFINE_STATIC_UNIQUE_KEY(gQuadIndexBufferKey);
    fQuadIndexBufferKey = gQuadIndexBufferKey;
}

sk_sp<GrTexture> GrResourceProvider::createTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
                                                   const GrMipLevel texels[], int mipLevelCount,
                                                   SkDestinationSurfaceColorMode mipColorMode) {
    ASSERT_SINGLE_OWNER

    SkASSERT(mipLevelCount > 0);

    if (this->isAbandoned()) {
        return nullptr;
    }

    GrMipMapped mipMapped = mipLevelCount > 1 ? GrMipMapped::kYes : GrMipMapped::kNo;
    if (!fCaps->validateSurfaceDesc(desc, mipMapped)) {
        return nullptr;
    }

    sk_sp<GrTexture> tex(fGpu->createTexture(desc, budgeted, texels, mipLevelCount));
    if (tex) {
        tex->texturePriv().setMipColorMode(mipColorMode);
    }

    return tex;
}

sk_sp<GrTexture> GrResourceProvider::getExactScratch(const GrSurfaceDesc& desc,
                                                     SkBudgeted budgeted, uint32_t flags) {
    sk_sp<GrTexture> tex(this->refScratchTexture(desc, flags));
    if (tex && SkBudgeted::kNo == budgeted) {
        tex->resourcePriv().makeUnbudgeted();
    }

    return tex;
}

sk_sp<GrTexture> GrResourceProvider::createTexture(const GrSurfaceDesc& desc,
                                                   SkBudgeted budgeted,
                                                   SkBackingFit fit,
                                                   const GrMipLevel& mipLevel) {
    ASSERT_SINGLE_OWNER

    if (this->isAbandoned()) {
        return nullptr;
    }

    if (!mipLevel.fPixels) {
        return nullptr;
    }

    if (!fCaps->validateSurfaceDesc(desc, GrMipMapped::kNo)) {
        return nullptr;
    }

    GrContext* context = fGpu->getContext();
    GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider();

    SkColorType colorType;
    if (GrPixelConfigToColorType(desc.fConfig, &colorType)) {
        // DDL TODO: remove this use of createInstantiatedProxy and convert it to a testing-only
        // method.
        sk_sp<GrTextureProxy> proxy = proxyProvider->createInstantiatedProxy(
                desc, kTopLeft_GrSurfaceOrigin, fit, budgeted);
        if (!proxy) {
            return nullptr;
        }
        // We use an ephemeral surface context to do the write pixels. Here it isn't clear what
        // color space to tag it with. That's ok because GrSurfaceContext::writePixels doesn't
        // do any color space conversions. Though, that is likely to change. However, if the
        // pixel config is sRGB then the passed color space here must have sRGB gamma or
        // GrSurfaceContext creation fails.
        sk_sp<SkColorSpace> colorSpace;
        if (GrPixelConfigIsSRGB(desc.fConfig)) {
            colorSpace = SkColorSpace::MakeSRGB();
        }
        auto srcInfo = SkImageInfo::Make(desc.fWidth, desc.fHeight, colorType,
                                         kUnknown_SkAlphaType, colorSpace);
        sk_sp<GrSurfaceContext> sContext = context->contextPriv().makeWrappedSurfaceContext(
                std::move(proxy), std::move(colorSpace));
        if (!sContext) {
            return nullptr;
        }
        SkAssertResult(sContext->writePixels(srcInfo, mipLevel.fPixels, mipLevel.fRowBytes, 0, 0));
        return sk_ref_sp(sContext->asTextureProxy()->priv().peekTexture());
    } else {
        return fGpu->createTexture(desc, budgeted, &mipLevel, 1);
    }
}

sk_sp<GrTexture> GrResourceProvider::createTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted,
                                                   uint32_t flags) {
    ASSERT_SINGLE_OWNER
    if (this->isAbandoned()) {
        return nullptr;
    }

    if (!fCaps->validateSurfaceDesc(desc, GrMipMapped::kNo)) {
        return nullptr;
    }

    sk_sp<GrTexture> tex = this->getExactScratch(desc, budgeted, flags);
    if (tex) {
        return tex;
    }

    return fGpu->createTexture(desc, budgeted);
}

sk_sp<GrTexture> GrResourceProvider::createApproxTexture(const GrSurfaceDesc& desc,
                                                         uint32_t flags) {
    ASSERT_SINGLE_OWNER
    SkASSERT(0 == flags || kNoPendingIO_Flag == flags);

    if (this->isAbandoned()) {
        return nullptr;
    }

    if (!fCaps->validateSurfaceDesc(desc, GrMipMapped::kNo)) {
        return nullptr;
    }

    if (auto tex = this->refScratchTexture(desc, flags)) {
        return tex;
    }

    SkTCopyOnFirstWrite<GrSurfaceDesc> copyDesc(desc);

    // bin by pow2 with a reasonable min
    if (!SkToBool(desc.fFlags & kPerformInitialClear_GrSurfaceFlag) &&
        (fGpu->caps()->reuseScratchTextures() || (desc.fFlags & kRenderTarget_GrSurfaceFlag))) {
        GrSurfaceDesc* wdesc = copyDesc.writable();
        wdesc->fWidth  = SkTMax(kMinScratchTextureSize, GrNextPow2(desc.fWidth));
        wdesc->fHeight = SkTMax(kMinScratchTextureSize, GrNextPow2(desc.fHeight));
    }

    if (auto tex = this->refScratchTexture(*copyDesc, flags)) {
        return tex;
    }

    return fGpu->createTexture(*copyDesc, SkBudgeted::kYes);
}

sk_sp<GrTexture> GrResourceProvider::refScratchTexture(const GrSurfaceDesc& desc,
                                                       uint32_t flags) {
    ASSERT_SINGLE_OWNER
    SkASSERT(!this->isAbandoned());
    SkASSERT(fCaps->validateSurfaceDesc(desc, GrMipMapped::kNo));

    // We could make initial clears work with scratch textures but it is a rare case so we just opt
    // to fall back to making a new texture.
    if (!SkToBool(desc.fFlags & kPerformInitialClear_GrSurfaceFlag) &&
        (fGpu->caps()->reuseScratchTextures() || (desc.fFlags & kRenderTarget_GrSurfaceFlag))) {

        GrScratchKey key;
        GrTexturePriv::ComputeScratchKey(desc, &key);
        uint32_t scratchFlags = 0;
        if (kNoPendingIO_Flag & flags) {
            scratchFlags = GrResourceCache::kRequireNoPendingIO_ScratchFlag;
        } else  if (!(desc.fFlags & kRenderTarget_GrSurfaceFlag)) {
            // If it is not a render target then it will most likely be populated by
            // writePixels() which will trigger a flush if the texture has pending IO.
            scratchFlags = GrResourceCache::kPreferNoPendingIO_ScratchFlag;
        }
        GrGpuResource* resource = fCache->findAndRefScratchResource(key,
                                                                    GrSurface::WorstCaseSize(desc),
                                                                    scratchFlags);
        if (resource) {
            GrSurface* surface = static_cast<GrSurface*>(resource);
            return sk_sp<GrTexture>(surface->asTexture());
        }
    }

    return nullptr;
}

sk_sp<GrTexture> GrResourceProvider::wrapBackendTexture(const GrBackendTexture& tex,
                                                        GrWrapOwnership ownership) {
    ASSERT_SINGLE_OWNER
    if (this->isAbandoned()) {
        return nullptr;
    }
    return fGpu->wrapBackendTexture(tex, ownership);
}

sk_sp<GrTexture> GrResourceProvider::wrapRenderableBackendTexture(const GrBackendTexture& tex,
                                                                  int sampleCnt,
                                                                  GrWrapOwnership ownership) {
    ASSERT_SINGLE_OWNER
    if (this->isAbandoned()) {
        return nullptr;
    }
    return fGpu->wrapRenderableBackendTexture(tex, sampleCnt, ownership);
}

sk_sp<GrRenderTarget> GrResourceProvider::wrapBackendRenderTarget(
        const GrBackendRenderTarget& backendRT)
{
    ASSERT_SINGLE_OWNER
    return this->isAbandoned() ? nullptr : fGpu->wrapBackendRenderTarget(backendRT);
}

void GrResourceProvider::assignUniqueKeyToResource(const GrUniqueKey& key,
                                                   GrGpuResource* resource) {
    ASSERT_SINGLE_OWNER
    if (this->isAbandoned() || !resource) {
        return;
    }
    resource->resourcePriv().setUniqueKey(key);
}

sk_sp<GrGpuResource> GrResourceProvider::findResourceByUniqueKey(const GrUniqueKey& key) {
    ASSERT_SINGLE_OWNER
    return this->isAbandoned() ? nullptr
                               : sk_sp<GrGpuResource>(fCache->findAndRefUniqueResource(key));
}

sk_sp<const GrBuffer> GrResourceProvider::findOrMakeStaticBuffer(GrBufferType intendedType,
                                                                 size_t size,
                                                                 const void* data,
                                                                 const GrUniqueKey& key) {
    if (auto buffer = this->findByUniqueKey<GrBuffer>(key)) {
        return std::move(buffer);
    }
    if (auto buffer = this->createBuffer(size, intendedType, kStatic_GrAccessPattern, 0,
                                         data)) {
        // We shouldn't bin and/or cachestatic buffers.
        SkASSERT(buffer->sizeInBytes() == size);
        SkASSERT(!buffer->resourcePriv().getScratchKey().isValid());
        SkASSERT(!buffer->resourcePriv().hasPendingIO_debugOnly());
        buffer->resourcePriv().setUniqueKey(key);
        return sk_sp<const GrBuffer>(buffer);
    }
    return nullptr;
}

sk_sp<const GrBuffer> GrResourceProvider::createPatternedIndexBuffer(const uint16_t* pattern,
                                                                     int patternSize,
                                                                     int reps,
                                                                     int vertCount,
                                                                     const GrUniqueKey& key) {
    size_t bufferSize = patternSize * reps * sizeof(uint16_t);

    // This is typically used in GrMeshDrawOps, so we assume kNoPendingIO.
    sk_sp<GrBuffer> buffer(this->createBuffer(bufferSize, kIndex_GrBufferType,
                                              kStatic_GrAccessPattern, kNoPendingIO_Flag));
    if (!buffer) {
        return nullptr;
    }
    uint16_t* data = (uint16_t*) buffer->map();
    SkAutoTArray<uint16_t> temp;
    if (!data) {
        temp.reset(reps * patternSize);
        data = temp.get();
    }
    for (int i = 0; i < reps; ++i) {
        int baseIdx = i * patternSize;
        uint16_t baseVert = (uint16_t)(i * vertCount);
        for (int j = 0; j < patternSize; ++j) {
            data[baseIdx+j] = baseVert + pattern[j];
        }
    }
    if (temp.get()) {
        if (!buffer->updateData(data, bufferSize)) {
            return nullptr;
        }
    } else {
        buffer->unmap();
    }
    this->assignUniqueKeyToResource(key, buffer.get());
    return std::move(buffer);
}

static constexpr int kMaxQuads = 1 << 12;  // max possible: (1 << 14) - 1;

sk_sp<const GrBuffer> GrResourceProvider::createQuadIndexBuffer() {
    GR_STATIC_ASSERT(4 * kMaxQuads <= 65535);
    static const uint16_t kPattern[] = { 0, 1, 2, 2, 1, 3 };
    return this->createPatternedIndexBuffer(kPattern, 6, kMaxQuads, 4, fQuadIndexBufferKey);
}

int GrResourceProvider::QuadCountOfQuadBuffer() { return kMaxQuads; }

sk_sp<GrPath> GrResourceProvider::createPath(const SkPath& path, const GrStyle& style) {
    if (this->isAbandoned()) {
        return nullptr;
    }

    SkASSERT(this->gpu()->pathRendering());
    return this->gpu()->pathRendering()->createPath(path, style);
}

GrBuffer* GrResourceProvider::createBuffer(size_t size, GrBufferType intendedType,
                                           GrAccessPattern accessPattern, uint32_t flags,
                                           const void* data) {
    if (this->isAbandoned()) {
        return nullptr;
    }
    if (kDynamic_GrAccessPattern != accessPattern) {
        return this->gpu()->createBuffer(size, intendedType, accessPattern, data);
    }
    if (!(flags & kRequireGpuMemory_Flag) &&
        this->gpu()->caps()->preferClientSideDynamicBuffers() &&
        GrBufferTypeIsVertexOrIndex(intendedType) &&
        kDynamic_GrAccessPattern == accessPattern) {
        return GrBuffer::CreateCPUBacked(this->gpu(), size, intendedType, data);
    }

    // bin by pow2 with a reasonable min
    static const size_t MIN_SIZE = 1 << 12;
    size_t allocSize = SkTMax(MIN_SIZE, GrNextSizePow2(size));

    GrScratchKey key;
    GrBuffer::ComputeScratchKeyForDynamicVBO(allocSize, intendedType, &key);
    uint32_t scratchFlags = 0;
    if (flags & kNoPendingIO_Flag) {
        scratchFlags = GrResourceCache::kRequireNoPendingIO_ScratchFlag;
    } else {
        scratchFlags = GrResourceCache::kPreferNoPendingIO_ScratchFlag;
    }
    GrBuffer* buffer = static_cast<GrBuffer*>(
        this->cache()->findAndRefScratchResource(key, allocSize, scratchFlags));
    if (!buffer) {
        buffer = this->gpu()->createBuffer(allocSize, intendedType, kDynamic_GrAccessPattern);
        if (!buffer) {
            return nullptr;
        }
    }
    if (data) {
        buffer->updateData(data, size);
    }
    SkASSERT(!buffer->isCPUBacked()); // We should only cache real VBOs.
    return buffer;
}

bool GrResourceProvider::attachStencilAttachment(GrRenderTarget* rt) {
    SkASSERT(rt);
    if (rt->renderTargetPriv().getStencilAttachment()) {
        return true;
    }

    if (!rt->wasDestroyed() && rt->canAttemptStencilAttachment()) {
        GrUniqueKey sbKey;

        int width = rt->width();
        int height = rt->height();
#if 0
        if (this->caps()->oversizedStencilSupport()) {
            width  = SkNextPow2(width);
            height = SkNextPow2(height);
        }
#endif
        SkDEBUGCODE(bool newStencil = false;)
        GrStencilAttachment::ComputeSharedStencilAttachmentKey(width, height,
                                                               rt->numStencilSamples(), &sbKey);
        auto stencil = this->findByUniqueKey<GrStencilAttachment>(sbKey);
        if (!stencil) {
            // Need to try and create a new stencil
            stencil.reset(this->gpu()->createStencilAttachmentForRenderTarget(rt, width, height));
            if (stencil) {
                this->assignUniqueKeyToResource(sbKey, stencil.get());
                SkDEBUGCODE(newStencil = true;)
            }
        }
        if (rt->renderTargetPriv().attachStencilAttachment(std::move(stencil))) {
#ifdef SK_DEBUG
            // Fill the SB with an inappropriate value. opLists that use the
            // SB should clear it properly.
            if (newStencil) {
                SkASSERT(rt->renderTargetPriv().getStencilAttachment()->isDirty());
                this->gpu()->clearStencil(rt, 0xFFFF);
                SkASSERT(rt->renderTargetPriv().getStencilAttachment()->isDirty());
            }
#endif
        }
    }
    return SkToBool(rt->renderTargetPriv().getStencilAttachment());
}

sk_sp<GrRenderTarget> GrResourceProvider::wrapBackendTextureAsRenderTarget(
        const GrBackendTexture& tex, int sampleCnt)
{
    if (this->isAbandoned()) {
        return nullptr;
    }
    return fGpu->wrapBackendTextureAsRenderTarget(tex, sampleCnt);
}

sk_sp<GrSemaphore> SK_WARN_UNUSED_RESULT GrResourceProvider::makeSemaphore(bool isOwned) {
    return fGpu->makeSemaphore(isOwned);
}

sk_sp<GrSemaphore> GrResourceProvider::wrapBackendSemaphore(const GrBackendSemaphore& semaphore,
                                                            SemaphoreWrapType wrapType,
                                                            GrWrapOwnership ownership) {
    ASSERT_SINGLE_OWNER
    return this->isAbandoned() ? nullptr : fGpu->wrapBackendSemaphore(semaphore,
                                                                      wrapType,
                                                                      ownership);
}

void GrResourceProvider::takeOwnershipOfSemaphore(sk_sp<GrSemaphore> semaphore) {
    semaphore->resetGpu(fGpu);
}

void GrResourceProvider::releaseOwnershipOfSemaphore(sk_sp<GrSemaphore> semaphore) {
    semaphore->resetGpu(nullptr);
}