1/*
2 * Copyright 2011 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "include/core/SkMath.h"
9#include "include/core/SkTypes.h"
10#include "include/gpu/GrTypes.h"
11#include "include/private/GrResourceKey.h"
12#include "src/core/SkMipmap.h"
13#include "src/gpu/GrCaps.h"
14#include "src/gpu/GrGpu.h"
15#include "src/gpu/GrRenderTarget.h"
16#include "src/gpu/GrTexture.h"
17
18#ifdef SK_DEBUG
19#include "include/gpu/GrDirectContext.h"
20#include "src/gpu/GrContextPriv.h"
21#endif
22
23void GrTexture::markMipmapsDirty() {
24 if (GrMipmapStatus::kValid == fMipmapStatus) {
25 fMipmapStatus = GrMipmapStatus::kDirty;
26 }
27}
28
29void GrTexture::markMipmapsClean() {
30 SkASSERT(GrMipmapStatus::kNotAllocated != fMipmapStatus);
31 fMipmapStatus = GrMipmapStatus::kValid;
32}
33
34size_t GrTexture::onGpuMemorySize() const {
35 const GrCaps& caps = *this->getGpu()->caps();
36 return GrSurface::ComputeSize(caps, this->backendFormat(), this->dimensions(), 1,
37 this->mipmapped());
38}
39
40/////////////////////////////////////////////////////////////////////////////
41GrTexture::GrTexture(GrGpu* gpu,
42 const SkISize& dimensions,
43 GrProtected isProtected,
44 GrTextureType textureType,
45 GrMipmapStatus mipmapStatus)
46 : INHERITED(gpu, dimensions, isProtected)
47 , fTextureType(textureType)
48 , fMipmapStatus(mipmapStatus) {
49 if (fMipmapStatus == GrMipmapStatus::kNotAllocated) {
50 fMaxMipmapLevel = 0;
51 } else {
52 fMaxMipmapLevel = SkMipmap::ComputeLevelCount(this->width(), this->height());
53 }
54}
55
56bool GrTexture::StealBackendTexture(sk_sp<GrTexture> texture,
57 GrBackendTexture* backendTexture,
58 SkImage::BackendTextureReleaseProc* releaseProc) {
59 if (!texture->unique()) {
60 return false;
61 }
62
63 if (!texture->onStealBackendTexture(backendTexture, releaseProc)) {
64 return false;
65 }
66#ifdef SK_DEBUG
67 GrResourceCache* cache = texture->getContext()->priv().getResourceCache();
68 int preCount = cache->getResourceCount();
69#endif
70 // Ensure that the texture will be released by the cache when we drop the last ref.
71 // A texture that has no refs and no keys should be immediately removed.
72 if (texture->getUniqueKey().isValid()) {
73 texture->resourcePriv().removeUniqueKey();
74 }
75 if (texture->resourcePriv().getScratchKey().isValid()) {
76 texture->resourcePriv().removeScratchKey();
77 }
78#ifdef SK_DEBUG
79 texture.reset();
80 int postCount = cache->getResourceCount();
81 SkASSERT(postCount < preCount);
82#endif
83 return true;
84}
85
86void GrTexture::computeScratchKey(GrScratchKey* key) const {
87 if (!this->getGpu()->caps()->isFormatCompressed(this->backendFormat())) {
88 int sampleCount = 1;
89 GrRenderable renderable = GrRenderable::kNo;
90 if (const auto* rt = this->asRenderTarget()) {
91 sampleCount = rt->numSamples();
92 renderable = GrRenderable::kYes;
93 }
94 auto isProtected = this->isProtected() ? GrProtected::kYes : GrProtected::kNo;
95 ComputeScratchKey(*this->getGpu()->caps(), this->backendFormat(), this->dimensions(),
96 renderable, sampleCount, this->mipmapped(), isProtected, key);
97 }
98}
99
100void GrTexture::ComputeScratchKey(const GrCaps& caps,
101 const GrBackendFormat& format,
102 SkISize dimensions,
103 GrRenderable renderable,
104 int sampleCnt,
105 GrMipmapped mipMapped,
106 GrProtected isProtected,
107 GrScratchKey* key) {
108 static const GrScratchKey::ResourceType kType = GrScratchKey::GenerateResourceType();
109 SkASSERT(!dimensions.isEmpty());
110 SkASSERT(sampleCnt > 0);
111 SkASSERT(1 == sampleCnt || renderable == GrRenderable::kYes);
112
113 SkASSERT(static_cast<uint32_t>(mipMapped) <= 1);
114 SkASSERT(static_cast<uint32_t>(isProtected) <= 1);
115 SkASSERT(static_cast<uint32_t>(renderable) <= 1);
116 SkASSERT(static_cast<uint32_t>(sampleCnt) < (1 << (32 - 3)));
117
118 uint64_t formatKey = caps.computeFormatKey(format);
119
120 GrScratchKey::Builder builder(key, kType, 5);
121 builder[0] = dimensions.width();
122 builder[1] = dimensions.height();
123 builder[2] = formatKey & 0xFFFFFFFF;
124 builder[3] = (formatKey >> 32) & 0xFFFFFFFF;
125 builder[4] = (static_cast<uint32_t>(mipMapped) << 0)
126 | (static_cast<uint32_t>(isProtected) << 1)
127 | (static_cast<uint32_t>(renderable) << 2)
128 | (static_cast<uint32_t>(sampleCnt) << 3);
129}
130