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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "GrTextureParamsAdjuster.h" | 8 #include "GrTextureParamsAdjuster.h" |
9 | 9 |
10 #include "GrCaps.h" | 10 #include "GrCaps.h" |
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72 | 72 |
73 SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(copy->asRenderT
arget())); | 73 SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(copy->asRenderT
arget())); |
74 if (!drawContext) { | 74 if (!drawContext) { |
75 return nullptr; | 75 return nullptr; |
76 } | 76 } |
77 | 77 |
78 drawContext->drawNonAARectToRect(GrClip::WideOpen(), paint, SkMatrix::I(), r
ect, localRect); | 78 drawContext->drawNonAARectToRect(GrClip::WideOpen(), paint, SkMatrix::I(), r
ect, localRect); |
79 return copy.detach(); | 79 return copy.detach(); |
80 } | 80 } |
81 | 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, | 82 GrTexture* GrTextureParamsAdjuster::refTextureForParams(GrContext* ctx, |
105 const GrTextureParams& p
arams) { | 83 const GrTextureParams& p
arams) { |
106 CopyParams copyParams; | 84 CopyParams copyParams; |
107 if (!ctx->getGpu()->makeCopyForTextureParams(this->width(), this->height(),
params, | 85 if (!ctx->getGpu()->makeCopyForTextureParams(this->width(), this->height(),
params, |
108 ©Params)) { | 86 ©Params)) { |
109 return this->refOriginalTexture(ctx); | 87 return this->refOriginalTexture(ctx); |
110 } | 88 } |
111 GrUniqueKey copyKey; | 89 GrUniqueKey copyKey; |
112 this->makeCopyKey(copyParams, ©Key); | 90 this->makeCopyKey(copyParams, ©Key); |
113 if (copyKey.isValid()) { | 91 if (copyKey.isValid()) { |
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124 | 102 |
125 if (copyKey.isValid()) { | 103 if (copyKey.isValid()) { |
126 ctx->textureProvider()->assignUniqueKeyToTexture(copyKey, result); | 104 ctx->textureProvider()->assignUniqueKeyToTexture(copyKey, result); |
127 this->didCacheCopy(copyKey); | 105 this->didCacheCopy(copyKey); |
128 } | 106 } |
129 return result; | 107 return result; |
130 } | 108 } |
131 | 109 |
132 GrTexture* GrTextureParamsAdjuster::generateTextureForParams(GrContext* ctx, | 110 GrTexture* GrTextureParamsAdjuster::generateTextureForParams(GrContext* ctx, |
133 const CopyParams& c
opyParams) { | 111 const CopyParams& c
opyParams) { |
134 if ((this->width() < ctx->caps()->minTextureSize() || | 112 SkAutoTUnref<GrTexture> original(this->refOriginalTexture(ctx)); |
135 this->height() < ctx->caps()->minTextureSize()) && !this->peekOriginalT
exture()) | 113 if (!original) { |
136 { | 114 return nullptr; |
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 } | 115 } |
| 116 return copy_on_gpu(original, copyParams); |
152 } | 117 } |
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