diff options
Diffstat (limited to 'include/core')
-rw-r--r-- | include/core/SkImageInfo.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/core/SkImageInfo.h b/include/core/SkImageInfo.h index 1165479f74..e37f2ef6d9 100644 --- a/include/core/SkImageInfo.h +++ b/include/core/SkImageInfo.h @@ -9,6 +9,7 @@ #define SkImageInfo_DEFINED #include "SkTypes.h" +#include "SkSize.h" class SkFlattenableWriteBuffer; class SkFlattenableReadBuffer; @@ -109,6 +110,55 @@ struct SkImageInfo { SkColorType fColorType; SkAlphaType fAlphaType; + static SkImageInfo Make(int width, int height, SkColorType ct, SkAlphaType at) { + SkASSERT(width >= 0); + SkASSERT(height >= 0); + SkImageInfo info = { + width, height, ct, at + }; + return info; + } + + /** + * Sets colortype to the native ARGB32 type. + */ + static SkImageInfo MakeN32(int width, int height, SkAlphaType at) { + SkASSERT(width >= 0); + SkASSERT(height >= 0); + SkImageInfo info = { + width, height, kPMColor_SkColorType, at + }; + return info; + } + + /** + * Sets colortype to the native ARGB32 type, and the alphatype to premul. + */ + static SkImageInfo MakeN32Premul(int width, int height) { + SkASSERT(width >= 0); + SkASSERT(height >= 0); + SkImageInfo info = { + width, height, kPMColor_SkColorType, kPremul_SkAlphaType + }; + return info; + } + + /** + * Sets colortype to the native ARGB32 type, and the alphatype to premul. + */ + static SkImageInfo MakeN32Premul(const SkISize& size) { + return MakeN32Premul(size.width(), size.height()); + } + + static SkImageInfo MakeA8(int width, int height) { + SkASSERT(width >= 0); + SkASSERT(height >= 0); + SkImageInfo info = { + width, height, kAlpha_8_SkColorType, kPremul_SkAlphaType + }; + return info; + } + bool isOpaque() const { return SkAlphaTypeIsOpaque(fAlphaType); } |