Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(62)

Side by Side Diff: src/gpu/GrTextureParamsAdjuster.cpp

Issue 1411353002: Revert recent CLs around GrTextureMaker/GrTextureParamsAdjuster (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years, 2 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « src/gpu/GrTextureParamsAdjuster.h ('k') | src/gpu/SkGr.cpp » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
(Empty)
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 "GrTextureParamsAdjuster.h"
9
10 #include "GrCaps.h"
11 #include "GrContext.h"
12 #include "GrDrawContext.h"
13 #include "GrGpu.h"
14 #include "GrTexture.h"
15 #include "GrTextureParams.h"
16 #include "GrTextureProvider.h"
17 #include "SkCanvas.h"
18 #include "SkGr.h"
19 #include "SkGrPriv.h"
20
21 typedef GrTextureParamsAdjuster::CopyParams CopyParams;
22
23 static GrTexture* copy_on_gpu(GrTexture* inputTexture, const CopyParams& copyPar ams) {
24 GrContext* context = inputTexture->getContext();
25 SkASSERT(context);
26 const GrCaps* caps = context->caps();
27
28 // Either it's a cache miss or the original wasn't cached to begin with.
29 GrSurfaceDesc rtDesc = inputTexture->desc();
30 rtDesc.fFlags = rtDesc.fFlags | kRenderTarget_GrSurfaceFlag;
31 rtDesc.fWidth = copyParams.fWidth;
32 rtDesc.fHeight = copyParams.fHeight;
33 rtDesc.fConfig = GrMakePixelConfigUncompressed(rtDesc.fConfig);
34
35 // If the config isn't renderable try converting to either A8 or an 32 bit c onfig. Otherwise,
36 // fail.
37 if (!caps->isConfigRenderable(rtDesc.fConfig, false)) {
38 if (GrPixelConfigIsAlphaOnly(rtDesc.fConfig)) {
39 if (caps->isConfigRenderable(kAlpha_8_GrPixelConfig, false)) {
40 rtDesc.fConfig = kAlpha_8_GrPixelConfig;
41 } else if (caps->isConfigRenderable(kSkia8888_GrPixelConfig, false)) {
42 rtDesc.fConfig = kSkia8888_GrPixelConfig;
43 } else {
44 return nullptr;
45 }
46 } else if (kRGB_GrColorComponentFlags ==
47 (kRGB_GrColorComponentFlags & GrPixelConfigComponentMask(rtDe sc.fConfig))) {
48 if (caps->isConfigRenderable(kSkia8888_GrPixelConfig, false)) {
49 rtDesc.fConfig = kSkia8888_GrPixelConfig;
50 } else {
51 return nullptr;
52 }
53 } else {
54 return nullptr;
55 }
56 }
57
58 SkAutoTUnref<GrTexture> copy(context->textureProvider()->createTexture(rtDes c, true));
59 if (!copy) {
60 return nullptr;
61 }
62
63 GrPaint paint;
64
65 // If filtering is not desired then we want to ensure all texels in the resa mpled image are
66 // copies of texels from the original.
67 GrTextureParams params(SkShader::kClamp_TileMode, copyParams.fFilter);
68 paint.addColorTextureProcessor(inputTexture, SkMatrix::I(), params);
69
70 SkRect rect = SkRect::MakeWH(SkIntToScalar(rtDesc.fWidth), SkIntToScalar(rtD esc.fHeight));
71 SkRect localRect = SkRect::MakeWH(1.f, 1.f);
72
73 SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(copy->asRenderT arget()));
74 if (!drawContext) {
75 return nullptr;
76 }
77
78 drawContext->drawNonAARectToRect(GrClip::WideOpen(), paint, SkMatrix::I(), r ect, localRect);
79 return copy.detach();
80 }
81
82 static SkBitmap copy_on_cpu(const SkBitmap& bmp, const CopyParams& copyParams) {
83 SkBitmap stretched;
84 stretched.allocN32Pixels(copyParams.fWidth, copyParams.fHeight);
85 SkCanvas canvas(stretched);
86 SkPaint paint;
87 switch (copyParams.fFilter) {
88 case GrTextureParams::kNone_FilterMode:
89 paint.setFilterQuality(kNone_SkFilterQuality);
90 break;
91 case GrTextureParams::kBilerp_FilterMode:
92 paint.setFilterQuality(kLow_SkFilterQuality);
93 break;
94 case GrTextureParams::kMipMap_FilterMode:
95 paint.setFilterQuality(kMedium_SkFilterQuality);
96 break;
97 }
98 SkRect dstRect = SkRect::MakeWH(SkIntToScalar(copyParams.fWidth),
99 SkIntToScalar(copyParams.fHeight));
100 canvas.drawBitmapRect(bmp, dstRect, &paint);
101 return stretched;
102 }
103
104 GrTexture* GrTextureParamsAdjuster::refTextureForParams(GrContext* ctx,
105 const GrTextureParams& p arams) {
106 CopyParams copyParams;
107 if (!ctx->getGpu()->makeCopyForTextureParams(this->width(), this->height(), params,
108 &copyParams)) {
109 return this->refOriginalTexture(ctx);
110 }
111 GrUniqueKey copyKey;
112 this->makeCopyKey(copyParams, &copyKey);
113 if (copyKey.isValid()) {
114 GrTexture* result = ctx->textureProvider()->findAndRefTextureByUniqueKey (copyKey);
115 if (result) {
116 return result;
117 }
118 }
119
120 GrTexture* result = this->generateTextureForParams(ctx, copyParams);
121 if (!result) {
122 return nullptr;
123 }
124
125 if (copyKey.isValid()) {
126 ctx->textureProvider()->assignUniqueKeyToTexture(copyKey, result);
127 this->didCacheCopy(copyKey);
128 }
129 return result;
130 }
131
132 GrTexture* GrTextureParamsAdjuster::generateTextureForParams(GrContext* ctx,
133 const CopyParams& c opyParams) {
134 if (this->width() < ctx->caps()->minTextureSize() ||
135 this->height() < ctx->caps()->minTextureSize())
136 {
137 // we can't trust our ability to use HW to perform the stretch, so we re quest
138 // a raster instead, and perform the stretch on the CPU.
139 SkBitmap bitmap;
140 if (!this->getROBitmap(&bitmap)) {
141 return nullptr;
142 }
143 SkBitmap stretchedBmp = copy_on_cpu(bitmap, copyParams);
144 return GrUploadBitmapToTexture(ctx, stretchedBmp);
145 } else {
146 SkAutoTUnref<GrTexture> original(this->refOriginalTexture(ctx));
147 if (!original) {
148 return nullptr;
149 }
150 return copy_on_gpu(original, copyParams);
151 }
152 }
OLDNEW
« no previous file with comments | « src/gpu/GrTextureParamsAdjuster.h ('k') | src/gpu/SkGr.cpp » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698