reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 "GrContext.h" |
| 9 | #include "GrDrawContext.h" |
| 10 | #include "GrYUVProvider.h" |
bsalomon | f267c1e | 2016-02-01 13:16:14 -0800 | [diff] [blame] | 11 | #include "effects/GrYUVEffect.h" |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 12 | |
| 13 | #include "SkCachedData.h" |
| 14 | #include "SkRefCnt.h" |
| 15 | #include "SkResourceCache.h" |
| 16 | #include "SkYUVPlanesCache.h" |
| 17 | |
| 18 | namespace { |
| 19 | /** |
| 20 | * Helper class to manage the resources used for storing the YUV planar data. Depending on the |
| 21 | * useCache option, we may find (and lock) the data in our ResourceCache, or we may have allocated |
| 22 | * it in scratch storage. |
| 23 | */ |
| 24 | class YUVScoper { |
| 25 | public: |
| 26 | bool init(GrYUVProvider*, SkYUVPlanesCache::Info*, void* planes[3], bool useCache); |
| 27 | |
| 28 | private: |
| 29 | // we only use one or the other of these |
| 30 | SkAutoTUnref<SkCachedData> fCachedData; |
| 31 | SkAutoMalloc fStorage; |
| 32 | }; |
| 33 | } |
| 34 | |
| 35 | bool YUVScoper::init(GrYUVProvider* provider, SkYUVPlanesCache::Info* yuvInfo, void* planes[3], |
| 36 | bool useCache) { |
| 37 | if (useCache) { |
| 38 | fCachedData.reset(SkYUVPlanesCache::FindAndRef(provider->onGetID(), yuvInfo)); |
| 39 | } |
| 40 | |
| 41 | if (fCachedData.get()) { |
| 42 | planes[0] = (void*)fCachedData->data(); |
msarett | 4984c3c | 2016-03-10 05:44:43 -0800 | [diff] [blame] | 43 | planes[1] = (uint8_t*)planes[0] + (yuvInfo->fSizeInfo.fWidthBytes[SkYUVSizeInfo::kY] * |
| 44 | yuvInfo->fSizeInfo.fSizes[SkYUVSizeInfo::kY].fHeight); |
| 45 | planes[2] = (uint8_t*)planes[1] + (yuvInfo->fSizeInfo.fWidthBytes[SkYUVSizeInfo::kU] * |
| 46 | yuvInfo->fSizeInfo.fSizes[SkYUVSizeInfo::kU].fHeight); |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 47 | } else { |
msarett | 4984c3c | 2016-03-10 05:44:43 -0800 | [diff] [blame] | 48 | // Fetch yuv plane sizes for memory allocation. |
| 49 | if (!provider->onQueryYUV8(&yuvInfo->fSizeInfo, &yuvInfo->fColorSpace)) { |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 50 | return false; |
| 51 | } |
| 52 | |
| 53 | // Allocate the memory for YUV |
| 54 | size_t totalSize(0); |
msarett | 4984c3c | 2016-03-10 05:44:43 -0800 | [diff] [blame] | 55 | for (int i = 0; i < 3; i++) { |
| 56 | totalSize += yuvInfo->fSizeInfo.fWidthBytes[i] * yuvInfo->fSizeInfo.fSizes[i].fHeight; |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 57 | } |
| 58 | if (useCache) { |
| 59 | fCachedData.reset(SkResourceCache::NewCachedData(totalSize)); |
| 60 | planes[0] = fCachedData->writable_data(); |
| 61 | } else { |
| 62 | fStorage.reset(totalSize); |
| 63 | planes[0] = fStorage.get(); |
| 64 | } |
msarett | 4984c3c | 2016-03-10 05:44:43 -0800 | [diff] [blame] | 65 | planes[1] = (uint8_t*)planes[0] + (yuvInfo->fSizeInfo.fWidthBytes[SkYUVSizeInfo::kY] * |
| 66 | yuvInfo->fSizeInfo.fSizes[SkYUVSizeInfo::kY].fHeight); |
| 67 | planes[2] = (uint8_t*)planes[1] + (yuvInfo->fSizeInfo.fWidthBytes[SkYUVSizeInfo::kU] * |
| 68 | yuvInfo->fSizeInfo.fSizes[SkYUVSizeInfo::kU].fHeight); |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 69 | |
msarett | 4984c3c | 2016-03-10 05:44:43 -0800 | [diff] [blame] | 70 | // Get the YUV planes. |
| 71 | if (!provider->onGetYUV8Planes(yuvInfo->fSizeInfo, planes)) { |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 72 | return false; |
| 73 | } |
| 74 | |
| 75 | if (useCache) { |
| 76 | // Decoding is done, cache the resulting YUV planes |
| 77 | SkYUVPlanesCache::Add(provider->onGetID(), fCachedData, yuvInfo); |
| 78 | } |
| 79 | } |
| 80 | return true; |
| 81 | } |
| 82 | |
| 83 | GrTexture* GrYUVProvider::refAsTexture(GrContext* ctx, const GrSurfaceDesc& desc, bool useCache) { |
| 84 | SkYUVPlanesCache::Info yuvInfo; |
| 85 | void* planes[3]; |
| 86 | YUVScoper scoper; |
| 87 | if (!scoper.init(this, &yuvInfo, planes, useCache)) { |
| 88 | return nullptr; |
| 89 | } |
| 90 | |
| 91 | GrSurfaceDesc yuvDesc; |
| 92 | yuvDesc.fConfig = kAlpha_8_GrPixelConfig; |
| 93 | SkAutoTUnref<GrTexture> yuvTextures[3]; |
msarett | 4984c3c | 2016-03-10 05:44:43 -0800 | [diff] [blame] | 94 | for (int i = 0; i < 3; i++) { |
| 95 | yuvDesc.fWidth = yuvInfo.fSizeInfo.fSizes[i].fWidth; |
| 96 | yuvDesc.fHeight = yuvInfo.fSizeInfo.fSizes[i].fHeight; |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 97 | // TODO: why do we need this check? |
msarett | 4984c3c | 2016-03-10 05:44:43 -0800 | [diff] [blame] | 98 | bool needsExactTexture = |
| 99 | (yuvDesc.fWidth != yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fWidth) || |
| 100 | (yuvDesc.fHeight != yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fHeight); |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 101 | if (needsExactTexture) { |
bsalomon | 5ec26ae | 2016-02-25 08:33:02 -0800 | [diff] [blame] | 102 | yuvTextures[i].reset(ctx->textureProvider()->createTexture(yuvDesc, SkBudgeted::kYes)); |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 103 | } else { |
| 104 | yuvTextures[i].reset(ctx->textureProvider()->createApproxTexture(yuvDesc)); |
| 105 | } |
| 106 | if (!yuvTextures[i] || |
msarett | 4984c3c | 2016-03-10 05:44:43 -0800 | [diff] [blame] | 107 | !yuvTextures[i]->writePixels(0, 0, yuvDesc.fWidth, yuvDesc.fHeight, yuvDesc.fConfig, |
| 108 | planes[i], yuvInfo.fSizeInfo.fWidthBytes[i])) { |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 109 | return nullptr; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | GrSurfaceDesc rtDesc = desc; |
| 114 | rtDesc.fFlags = rtDesc.fFlags | kRenderTarget_GrSurfaceFlag; |
| 115 | |
bsalomon | 5ec26ae | 2016-02-25 08:33:02 -0800 | [diff] [blame] | 116 | SkAutoTUnref<GrTexture> result(ctx->textureProvider()->createTexture(rtDesc, SkBudgeted::kYes, |
| 117 | nullptr, 0)); |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 118 | if (!result) { |
| 119 | return nullptr; |
| 120 | } |
| 121 | |
| 122 | GrRenderTarget* renderTarget = result->asRenderTarget(); |
| 123 | SkASSERT(renderTarget); |
| 124 | |
| 125 | GrPaint paint; |
bsalomon | f267c1e | 2016-02-01 13:16:14 -0800 | [diff] [blame] | 126 | SkAutoTUnref<const GrFragmentProcessor> yuvToRgbProcessor( |
| 127 | GrYUVEffect::CreateYUVToRGB(yuvTextures[0], |
| 128 | yuvTextures[1], |
| 129 | yuvTextures[2], |
msarett | 4984c3c | 2016-03-10 05:44:43 -0800 | [diff] [blame] | 130 | yuvInfo.fSizeInfo.fSizes, |
bsalomon | f267c1e | 2016-02-01 13:16:14 -0800 | [diff] [blame] | 131 | yuvInfo.fColorSpace)); |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 132 | paint.addColorFragmentProcessor(yuvToRgbProcessor); |
egdaniel | c4b7272 | 2015-11-23 13:20:41 -0800 | [diff] [blame] | 133 | paint.setPorterDuffXPFactory(SkXfermode::kSrc_Mode); |
msarett | 4984c3c | 2016-03-10 05:44:43 -0800 | [diff] [blame] | 134 | const SkRect r = SkRect::MakeIWH(yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fWidth, |
| 135 | yuvInfo.fSizeInfo.fSizes[SkYUVSizeInfo::kY].fHeight); |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 136 | |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 137 | SkAutoTUnref<GrDrawContext> drawContext(ctx->drawContext(renderTarget)); |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 138 | if (!drawContext) { |
| 139 | return nullptr; |
| 140 | } |
| 141 | |
robertphillips | 2e1e51f | 2015-10-15 08:01:48 -0700 | [diff] [blame] | 142 | drawContext->drawRect(GrClip::WideOpen(), paint, SkMatrix::I(), r); |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 143 | |
mtklein | 18300a3 | 2016-03-16 13:53:35 -0700 | [diff] [blame^] | 144 | return result.release(); |
reed | 43fe618 | 2015-09-08 08:37:36 -0700 | [diff] [blame] | 145 | } |
| 146 | |