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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CC_RASTER_TEXTURE_COMPRESSOR_ETC1_H_ | 5 #ifndef CC_RASTER_TEXTURE_COMPRESSOR_ETC1_H_ |
| 6 #define CC_RASTER_TEXTURE_COMPRESSOR_ETC1_H_ | 6 #define CC_RASTER_TEXTURE_COMPRESSOR_ETC1_H_ |
| 7 | 7 |
| 8 #include "cc/raster/texture_compressor.h" | 8 #include "cc/raster/texture_compressor.h" |
| 9 | 9 |
| 10 #include <stdint.h> |
| 11 |
| 10 #include "base/compiler_specific.h" | 12 #include "base/compiler_specific.h" |
| 11 #include "base/logging.h" | 13 #include "base/logging.h" |
| 14 #include "base/macros.h" |
| 12 | 15 |
| 13 namespace cc { | 16 namespace cc { |
| 14 | 17 |
| 15 template <typename T> | 18 template <typename T> |
| 16 inline T clamp(T val, T min, T max) { | 19 inline T clamp(T val, T min, T max) { |
| 17 return val < min ? min : (val > max ? max : val); | 20 return val < min ? min : (val > max ? max : val); |
| 18 } | 21 } |
| 19 | 22 |
| 20 inline uint8_t round_to_5_bits(float val) { | 23 inline uint8_t round_to_5_bits(float val) { |
| 21 return clamp<uint8_t>(val * 31.0f / 255.0f + 0.5f, 0, 31); | 24 return clamp<uint8_t>(val * 31.0f / 255.0f + 0.5f, 0, 31); |
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| 197 int height, | 200 int height, |
| 198 Quality quality) override; | 201 Quality quality) override; |
| 199 | 202 |
| 200 private: | 203 private: |
| 201 DISALLOW_COPY_AND_ASSIGN(TextureCompressorETC1); | 204 DISALLOW_COPY_AND_ASSIGN(TextureCompressorETC1); |
| 202 }; | 205 }; |
| 203 | 206 |
| 204 } // namespace cc | 207 } // namespace cc |
| 205 | 208 |
| 206 #endif // CC_RASTER_TEXTURE_COMPRESSOR_ETC1_H_ | 209 #endif // CC_RASTER_TEXTURE_COMPRESSOR_ETC1_H_ |
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