diff options
Diffstat (limited to 'graphics/conversion.h')
| -rw-r--r-- | graphics/conversion.h | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/graphics/conversion.h b/graphics/conversion.h index 6babc763e2..28e64a94fb 100644 --- a/graphics/conversion.h +++ b/graphics/conversion.h @@ -59,15 +59,18 @@ inline static void RGB2YUV(byte r, byte g, byte b, byte &y, byte &u, byte &v) { * @return true if conversion completes successfully, * false if there is an error. * - * @note This implementation currently arbitrarily requires that the - * destination's format have at least as high a bytedepth as - * the source's. - * @note This can convert a rectangle in place, if the source and - * destination format have the same bytedepth. - * + * @note Blitting to a 3Bpp destination is not supported + * @note This can convert a surface in place, regardless of the + * source and destination format, as long as there is enough + * space for the destination. The dstPitch / srcPitch ratio + * must at least equal the dstBpp / srcBpp ratio for + * dstPitch >= srcPitch and at most dstBpp / srcBpp for + * dstPitch < srcPitch though. */ -bool crossBlit(byte *dst, const byte *src, int dstpitch, int srcpitch, - int w, int h, const Graphics::PixelFormat &dstFmt, const Graphics::PixelFormat &srcFmt); +bool crossBlit(byte *dst, const byte *src, + const uint dstPitch, const uint srcPitch, + const uint w, const uint h, + const Graphics::PixelFormat &dstFmt, const Graphics::PixelFormat &srcFmt); } // End of namespace Graphics |