1/* 2 * Copyright 2016 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 "GrBitmapTextureMaker.h" 9 10#include "GrContext.h" 11#include "GrGpuResourcePriv.h" 12#include "GrResourceProvider.h" 13#include "SkBitmap.h" 14#include "SkGr.h" 15#include "SkPixelRef.h" 16 17static bool bmp_is_alpha_only(const SkBitmap& bm) { return kAlpha_8_SkColorType == bm.colorType(); } 18 19GrBitmapTextureMaker::GrBitmapTextureMaker(GrContext* context, const SkBitmap& bitmap) 20 : INHERITED(context, bitmap.width(), bitmap.height(), bmp_is_alpha_only(bitmap)) 21 , fBitmap(bitmap) { 22 if (!bitmap.isVolatile()) { 23 SkIPoint origin = bitmap.pixelRefOrigin(); 24 SkIRect subset = SkIRect::MakeXYWH(origin.fX, origin.fY, bitmap.width(), 25 bitmap.height()); 26 GrMakeKeyFromImageID(&fOriginalKey, bitmap.pixelRef()->getGenerationID(), subset); 27 } 28} 29 30sk_sp<GrTextureProxy> GrBitmapTextureMaker::refOriginalTextureProxy(bool willBeMipped, 31 SkColorSpace* dstColorSpace, 32 AllowedTexGenType onlyIfFast) { 33 if (AllowedTexGenType::kCheap == onlyIfFast) { 34 return nullptr; 35 } 36 37 sk_sp<GrTextureProxy> proxy; 38 39 if (fOriginalKey.isValid()) { 40 proxy = this->context()->resourceProvider()->findProxyByUniqueKey(fOriginalKey); 41 if (proxy) { 42 return proxy; 43 } 44 } 45 if (willBeMipped) { 46 proxy = GrGenerateMipMapsAndUploadToTextureProxy(this->context(), fBitmap, dstColorSpace); 47 } 48 if (!proxy) { 49 proxy = GrUploadBitmapToTextureProxy(this->context()->resourceProvider(), fBitmap, 50 dstColorSpace); 51 } 52 if (proxy && fOriginalKey.isValid()) { 53 this->context()->resourceProvider()->assignUniqueKeyToProxy(fOriginalKey, proxy.get()); 54 // MDB TODO (caching): this has to play nice with the GrSurfaceProxy's caching 55 GrInstallBitmapUniqueKeyInvalidator(fOriginalKey, fBitmap.pixelRef()); 56 } 57 return proxy; 58} 59 60void GrBitmapTextureMaker::makeCopyKey(const CopyParams& copyParams, GrUniqueKey* copyKey, 61 SkColorSpace* dstColorSpace) { 62 // Destination color space is irrelevant - we always upload the bitmap's contents as-is 63 if (fOriginalKey.isValid()) { 64 MakeCopyKeyFromOrigKey(fOriginalKey, copyParams, copyKey); 65 } 66} 67 68void GrBitmapTextureMaker::didCacheCopy(const GrUniqueKey& copyKey) { 69 GrInstallBitmapUniqueKeyInvalidator(copyKey, fBitmap.pixelRef()); 70} 71 72SkAlphaType GrBitmapTextureMaker::alphaType() const { 73 return fBitmap.alphaType(); 74} 75 76sk_sp<SkColorSpace> GrBitmapTextureMaker::getColorSpace(SkColorSpace* dstColorSpace) { 77 // Color space doesn't depend on destination color space - it's just whatever is in the bitmap 78 return fBitmap.refColorSpace(); 79} 80