diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/gpu/GrContext.h | 6 | ||||
| -rw-r--r-- | include/gpu/GrTypes.h | 20 |
2 files changed, 23 insertions, 3 deletions
diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h index 5b7ef25ced..c54f2e6b23 100644 --- a/include/gpu/GrContext.h +++ b/include/gpu/GrContext.h @@ -204,10 +204,11 @@ public: * for different wrap modes on GPUs with limited NPOT * texture support). NULL implies clamp wrap modes. * @param desc Description of the texture properties. - * @param cacheID Cache-specific properties (e.g., texture gen ID) + * @param cacheID Cache-specific properties (e.g., texture gen ID) * @param srcData Pointer to the pixel values. * @param rowBytes The number of bytes between rows of the texture. Zero - * implies tightly packed rows. + * implies tightly packed rows. For compressed pixel configs, this + * field is ignored. * @param cacheKey (optional) If non-NULL, we'll write the cache key we used to cacheKey. */ GrTexture* createTexture(const GrTextureParams* params, @@ -216,7 +217,6 @@ public: const void* srcData, size_t rowBytes, GrResourceKey* cacheKey = NULL); - /** * Search for an entry based on key and dimensions. If found, ref it and return it. The return * value will be NULL if not found. The caller must balance with a call to unref. diff --git a/include/gpu/GrTypes.h b/include/gpu/GrTypes.h index 53e633da57..34f4e2827d 100644 --- a/include/gpu/GrTypes.h +++ b/include/gpu/GrTypes.h @@ -641,6 +641,26 @@ enum GrGLBackendState { }; /** + * Returns the data size for the given compressed pixel config + */ +static inline size_t GrCompressedFormatDataSize(GrPixelConfig config, + int width, int height) { + SkASSERT(GrPixelConfigIsCompressed(config)); + + switch (config) { + case kLATC_GrPixelConfig: + case kETC1_GrPixelConfig: + SkASSERT((width & 3) == 0); + SkASSERT((height & 3) == 0); + return (width >> 2) * (height >> 2) * 8; + + default: + SkFAIL("Unknown compressed pixel config"); + return 4 * width * height; + } +} + +/** * This value translates to reseting all the context state for any backend. */ static const uint32_t kAll_GrBackendState = 0xffffffff; |