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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 #ifndef GrTextureProvider_DEFINED | 8 #ifndef GrTextureProvider_DEFINED |
9 #define GrTextureProvider_DEFINED | 9 #define GrTextureProvider_DEFINED |
10 | 10 |
11 #include "GrTexture.h" | 11 #include "GrTexture.h" |
| 12 #include "SkImageFilter.h" |
12 | 13 |
13 class SK_API GrTextureProvider { | 14 class SK_API GrTextureProvider { |
14 public: | 15 public: |
15 /////////////////////////////////////////////////////////////////////////// | 16 /////////////////////////////////////////////////////////////////////////// |
16 // Textures | 17 // Textures |
17 | 18 |
18 /** | 19 /** |
19 * Creates a new texture in the resource cache and returns it. The caller ow
ns a | 20 * Creates a new texture in the resource cache and returns it. The caller ow
ns a |
20 * ref on the returned texture which must be balanced by a call to unref. | 21 * ref on the returned texture which must be balanced by a call to unref. |
21 * | 22 * |
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62 | 63 |
63 /** | 64 /** |
64 * Finds a texture that approximately matches the descriptor. Will be at lea
st as large in width | 65 * Finds a texture that approximately matches the descriptor. Will be at lea
st as large in width |
65 * and height as desc specifies. If desc specifies that the texture should b
e a render target | 66 * and height as desc specifies. If desc specifies that the texture should b
e a render target |
66 * then result will be a render target. Format and sample count will always
match the request. | 67 * then result will be a render target. Format and sample count will always
match the request. |
67 * The contents of the texture are undefined. The caller owns a ref on the r
eturned texture and | 68 * The contents of the texture are undefined. The caller owns a ref on the r
eturned texture and |
68 * must balance with a call to unref. | 69 * must balance with a call to unref. |
69 */ | 70 */ |
70 GrTexture* createApproxTexture(const GrSurfaceDesc&); | 71 GrTexture* createApproxTexture(const GrSurfaceDesc&); |
71 | 72 |
| 73 enum SizeConstraint { |
| 74 kExact_SizeConstraint, |
| 75 kApprox_SizeConstraint, |
| 76 }; |
| 77 |
| 78 GrTexture* createTexture(const GrSurfaceDesc& desc, SizeConstraint constrain
t) { |
| 79 switch (constraint) { |
| 80 case kExact_SizeConstraint: |
| 81 return this->createTexture(desc, true); |
| 82 case kApprox_SizeConstraint: |
| 83 return this->createApproxTexture(desc); |
| 84 } |
| 85 sk_throw(); |
| 86 return nullptr; |
| 87 } |
| 88 |
| 89 static SizeConstraint FromImageFilter(SkImageFilter::SizeConstraint constrai
nt) { |
| 90 if (SkImageFilter::kExact_SizeConstraint == constraint) { |
| 91 return kExact_SizeConstraint; |
| 92 } else { |
| 93 SkASSERT(SkImageFilter::kApprox_SizeConstraint == constraint); |
| 94 return kApprox_SizeConstraint; |
| 95 } |
| 96 } |
| 97 |
72 /** Legacy function that no longer should be used. */ | 98 /** Legacy function that no longer should be used. */ |
73 enum ScratchTexMatch { | 99 enum ScratchTexMatch { |
74 kExact_ScratchTexMatch, | 100 kExact_ScratchTexMatch, |
75 kApprox_ScratchTexMatch | 101 kApprox_ScratchTexMatch |
76 }; | 102 }; |
77 GrTexture* refScratchTexture(const GrSurfaceDesc& desc, ScratchTexMatch matc
h) { | 103 GrTexture* refScratchTexture(const GrSurfaceDesc& desc, ScratchTexMatch matc
h) { |
78 if (kApprox_ScratchTexMatch == match) { | 104 if (kApprox_ScratchTexMatch == match) { |
79 return this->createApproxTexture(desc); | 105 return this->createApproxTexture(desc); |
80 } else { | 106 } else { |
81 return this->createTexture(desc, true); | 107 return this->createTexture(desc, true); |
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156 SkASSERT(SkToBool(fGpu) == SkToBool(fCache)); | 182 SkASSERT(SkToBool(fGpu) == SkToBool(fCache)); |
157 return !SkToBool(fCache); | 183 return !SkToBool(fCache); |
158 } | 184 } |
159 | 185 |
160 private: | 186 private: |
161 GrResourceCache* fCache; | 187 GrResourceCache* fCache; |
162 GrGpu* fGpu; | 188 GrGpu* fGpu; |
163 }; | 189 }; |
164 | 190 |
165 #endif | 191 #endif |
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