diff options
Diffstat (limited to 'backends/platform/wince/CEScaler.h')
| -rw-r--r-- | backends/platform/wince/CEScaler.h | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/backends/platform/wince/CEScaler.h b/backends/platform/wince/CEScaler.h index 157ec98c63..548c0c99c1 100644 --- a/backends/platform/wince/CEScaler.h +++ b/backends/platform/wince/CEScaler.h @@ -31,12 +31,29 @@ #include "graphics/scaler.h" #include "graphics/scaler/intern.h" +/** + * This filter (down)scales the source image horizontally by a factor of 3/4. + * For example, a 320x200 image is scaled to 240x200. + */ DECLARE_SCALER(PocketPCPortrait); + +/** + * This filter (up)scales the source image vertically by a factor of 6/5. + * For example, a 320x200 image is scaled to 320x240. + * + * The main difference to the code in graphics/scaler/aspect.cpp is the + * out-of-place operation, omitting a straight blit step the sdl backend + * does. Also, tests show unaligned access errors with the stock aspect scaler. + */ DECLARE_SCALER(PocketPCLandscapeAspect); -DECLARE_SCALER(PocketPCHalf); -DECLARE_SCALER(PocketPCHalfZoom); -//#ifdef WIN32_PLATFORM_WFSP + +/** + * This filter (down)scales the source image horizontally by a factor of 2/3 + * and vertically by 7/8. For example, a 320x200 image is scaled to 213x175. + * + * @note The ARM asm version seems to work differently ?!? It apparently scales + * horizontally by 11/16. Thus a 320x200 image is scaled to 220x175. + */ DECLARE_SCALER(SmartphoneLandscape); -//#endif #endif |