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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 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 GrTypes_DEFINED | 8 #ifndef GrTypes_DEFINED |
9 #define GrTypes_DEFINED | 9 #define GrTypes_DEFINED |
10 | 10 |
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101 static inline uint32_t GrUIAlignDown(uint32_t x, uint32_t alignment) { | 101 static inline uint32_t GrUIAlignDown(uint32_t x, uint32_t alignment) { |
102 return (x / alignment) * alignment; | 102 return (x / alignment) * alignment; |
103 } | 103 } |
104 static inline size_t GrSizeAlignDown(size_t x, uint32_t alignment) { | 104 static inline size_t GrSizeAlignDown(size_t x, uint32_t alignment) { |
105 return (x / alignment) * alignment; | 105 return (x / alignment) * alignment; |
106 } | 106 } |
107 | 107 |
108 /////////////////////////////////////////////////////////////////////////////// | 108 /////////////////////////////////////////////////////////////////////////////// |
109 | 109 |
110 /** | 110 /** |
111 * Return the next power of 2 >= n. | |
112 */ | |
113 static inline uint32_t GrNextPow2(uint32_t n) { | |
114 return n ? (1 << (32 - SkCLZ(n - 1))) : 1; | |
115 } | |
116 | |
117 static inline int GrNextPow2(int n) { | |
118 SkASSERT(n >= 0); // this impl only works for non-neg. | |
119 return n ? (1 << (32 - SkCLZ(n - 1))) : 1; | |
120 } | |
121 | |
122 /////////////////////////////////////////////////////////////////////////////// | |
123 | |
124 /** | |
125 * Possible 3D APIs that may be used by Ganesh. | 111 * Possible 3D APIs that may be used by Ganesh. |
126 */ | 112 */ |
127 enum GrBackend { | 113 enum GrBackend { |
128 kOpenGL_GrBackend, | 114 kOpenGL_GrBackend, |
129 kVulkan_GrBackend, | 115 kVulkan_GrBackend, |
130 | 116 |
131 kLast_GrBackend = kVulkan_GrBackend | 117 kLast_GrBackend = kVulkan_GrBackend |
132 }; | 118 }; |
133 const int kBackendCount = kLast_GrBackend + 1; | 119 const int kBackendCount = kLast_GrBackend + 1; |
134 | 120 |
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638 return 4 * width * height; | 624 return 4 * width * height; |
639 } | 625 } |
640 } | 626 } |
641 | 627 |
642 /** | 628 /** |
643 * This value translates to reseting all the context state for any backend. | 629 * This value translates to reseting all the context state for any backend. |
644 */ | 630 */ |
645 static const uint32_t kAll_GrBackendState = 0xffffffff; | 631 static const uint32_t kAll_GrBackendState = 0xffffffff; |
646 | 632 |
647 #endif | 633 #endif |
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