1/*
2 * Copyright 2018 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#ifndef SkImage_GpuBase_DEFINED
9#define SkImage_GpuBase_DEFINED
10
11#include "include/core/SkDeferredDisplayListRecorder.h"
12#include "include/core/SkYUVAIndex.h"
13#include "include/gpu/GrBackendSurface.h"
14#include "include/gpu/GrContext.h"
15#include "include/private/GrTypesPriv.h"
16#include "src/image/SkImage_Base.h"
17
18class GrColorSpaceXform;
19class SkColorSpace;
20
21class SkImage_GpuBase : public SkImage_Base {
22public:
23 GrContext* context() const final { return fContext.get(); }
24
25 bool getROPixels(SkBitmap*, CachingHint) const final;
26 sk_sp<SkImage> onMakeSubset(GrRecordingContext*, const SkIRect& subset) const final;
27
28 bool onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRB,
29 int srcX, int srcY, CachingHint) const override;
30
31 GrSurfaceProxyView refView(GrRecordingContext*, GrMipMapped) const final;
32
33 GrSurfaceProxyView refPinnedView(GrRecordingContext* context, uint32_t* uniqueID) const final {
34 *uniqueID = this->uniqueID();
35 SkASSERT(this->view(context));
36 return *this->view(context);
37 }
38
39 GrBackendTexture onGetBackendTexture(bool flushPendingGrContextIO,
40 GrSurfaceOrigin* origin) const final;
41
42 GrTexture* getTexture() const;
43
44 bool onIsValid(GrContext*) const final;
45
46#if GR_TEST_UTILS
47 void resetContext(sk_sp<GrContext> newContext);
48#endif
49
50 static bool ValidateBackendTexture(const GrCaps*, const GrBackendTexture& tex,
51 GrColorType grCT, SkColorType ct, SkAlphaType at,
52 sk_sp<SkColorSpace> cs);
53 static bool ValidateCompressedBackendTexture(const GrCaps*, const GrBackendTexture& tex,
54 SkAlphaType);
55 static bool MakeTempTextureProxies(GrContext* ctx, const GrBackendTexture yuvaTextures[],
56 int numTextures, const SkYUVAIndex [4],
57 GrSurfaceOrigin imageOrigin,
58 GrSurfaceProxyView tempViews[4]);
59
60 static SkAlphaType GetAlphaTypeFromYUVAIndices(const SkYUVAIndex yuvaIndices[4]) {
61 return -1 != yuvaIndices[SkYUVAIndex::kA_Index].fIndex ? kPremul_SkAlphaType
62 : kOpaque_SkAlphaType;
63 }
64
65 using PromiseImageTextureContext = SkDeferredDisplayListRecorder::PromiseImageTextureContext;
66 using PromiseImageTextureFulfillProc =
67 SkDeferredDisplayListRecorder::PromiseImageTextureFulfillProc;
68 using PromiseImageTextureReleaseProc =
69 SkDeferredDisplayListRecorder::PromiseImageTextureReleaseProc;
70 using PromiseImageTextureDoneProc = SkDeferredDisplayListRecorder::PromiseImageTextureDoneProc;
71
72protected:
73 SkImage_GpuBase(sk_sp<GrContext>, SkISize size, uint32_t uniqueID, SkColorType, SkAlphaType,
74 sk_sp<SkColorSpace>);
75
76 using PromiseImageApiVersion = SkDeferredDisplayListRecorder::PromiseImageApiVersion;
77 // Helper for making a lazy proxy for a promise image. The PromiseDoneProc we be called,
78 // if not null, immediately if this function fails. Othwerwise, it is installed in the
79 // proxy along with the TextureFulfillProc and TextureReleaseProc. PromiseDoneProc must not
80 // be null.
81 static sk_sp<GrTextureProxy> MakePromiseImageLazyProxy(
82 GrContext*, int width, int height, GrBackendFormat, GrMipMapped,
83 PromiseImageTextureFulfillProc, PromiseImageTextureReleaseProc,
84 PromiseImageTextureDoneProc, PromiseImageTextureContext, PromiseImageApiVersion);
85
86 static bool RenderYUVAToRGBA(GrContext* ctx, GrRenderTargetContext* renderTargetContext,
87 const SkRect& rect, SkYUVColorSpace yuvColorSpace,
88 sk_sp<GrColorSpaceXform> colorSpaceXform,
89 GrSurfaceProxyView views[4],
90 const SkYUVAIndex yuvaIndices[4]);
91
92 sk_sp<GrContext> fContext;
93
94private:
95 typedef SkImage_Base INHERITED;
96};
97
98#endif
99