1 /*
2 * Copyright 2013 The Android Open Source Project
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 "SkMatrix.h"
9
10 #if SK_SUPPORT_GPU
11 #include "GrTexture.h"
12 #include "SkImageFilterUtils.h"
13 #include "SkBitmap.h"
14 #include "SkGrPixelRef.h"
15 #include "SkGr.h"
16
WrapTexture(GrTexture * texture,int width,int height,SkBitmap * result)17 bool SkImageFilterUtils::WrapTexture(GrTexture* texture, int width, int height, SkBitmap* result) {
18 SkASSERT(texture->config() == kSkia8888_GrPixelConfig);
19 result->setConfig(SkBitmap::kARGB_8888_Config, width, height);
20 result->setPixelRef(SkNEW_ARGS(SkGrPixelRef, (texture)))->unref();
21 return true;
22 }
23
GetInputResultGPU(SkImageFilter * filter,SkImageFilter::Proxy * proxy,const SkBitmap & src,SkBitmap * result)24 bool SkImageFilterUtils::GetInputResultGPU(SkImageFilter* filter, SkImageFilter::Proxy* proxy, const SkBitmap& src, SkBitmap* result) {
25 if (!filter) {
26 *result = src;
27 return true;
28 } else if (filter->canFilterImageGPU()) {
29 return filter->filterImageGPU(proxy, src, result);
30 } else {
31 SkIPoint offset;
32 if (filter->filterImage(proxy, src, SkMatrix(), result, &offset)) {
33 if (!result->getTexture()) {
34 GrContext* context = ((GrTexture *) src.getTexture())->getContext();
35 GrTexture* resultTex = GrLockAndRefCachedBitmapTexture(context,
36 *result, NULL);
37 result->setPixelRef(new SkGrPixelRef(resultTex))->unref();
38 GrUnlockAndUnrefCachedBitmapTexture(resultTex);
39 }
40 return true;
41 } else {
42 return false;
43 }
44 }
45 }
46 #endif
47