diff options
| author | Brian Paul <brianp@vmware.com> | 2012-01-29 19:47:37 -0700 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2012-01-30 13:01:08 -0700 |
| commit | 66940ad2d7145d30cf0381a9a2835efaa0d1ee3f (patch) | |
| tree | e71bc7fb9541a53cb25f51c012fe60064eaae109 | |
| parent | ff2497dca39d688bbceba9f524a61e99d93a9607 (diff) | |
mesa: added _mesa_pack_ubyte_rgba_rect()
Reviewed-by: Eric Anholt <eric@anholt.net>
| -rw-r--r-- | src/mesa/main/format_pack.c | 42 | ||||
| -rw-r--r-- | src/mesa/main/format_pack.h | 4 |
2 files changed, 46 insertions, 0 deletions
diff --git a/src/mesa/main/format_pack.c b/src/mesa/main/format_pack.c index 85b2c691c54..ea1d95ee9e9 100644 --- a/src/mesa/main/format_pack.c +++ b/src/mesa/main/format_pack.c @@ -2050,6 +2050,48 @@ _mesa_pack_ubyte_rgba_row(gl_format format, GLuint n, /** + * Pack a 2D image of ubyte RGBA pixels in the given format. + * \param srcRowStride source image row stride in bytes + * \param dstRowStride destination image row stride in bytes + */ +void +_mesa_pack_ubyte_rgba_rect(gl_format format, GLuint width, GLuint height, + const GLubyte *src, GLint srcRowStride, + void *dst, GLint dstRowStride) +{ + pack_ubyte_rgba_row_func packrow = get_pack_ubyte_rgba_row_function(format); + GLubyte *dstUB = (GLubyte *) dst; + GLuint i; + + if (packrow) { + if (srcRowStride == width * 4 * sizeof(GLubyte) && + dstRowStride == _mesa_format_row_stride(format, width)) { + /* do whole image at once */ + packrow(width * height, (const GLubyte (*)[4]) src, dst); + } + else { + /* row by row */ + for (i = 0; i < height; i++) { + packrow(width, (const GLubyte (*)[4]) src, dstUB); + src += srcRowStride; + dstUB += dstRowStride; + } + } + } + else { + /* slower fallback */ + for (i = 0; i < height; i++) { + _mesa_pack_ubyte_rgba_row(format, width, + (const GLubyte (*)[4]) src, dstUB); + src += srcRowStride; + dstUB += dstRowStride; + } + } +} + + + +/** ** Pack float Z pixels **/ diff --git a/src/mesa/main/format_pack.h b/src/mesa/main/format_pack.h index f1b48051065..20b2ad8a5ac 100644 --- a/src/mesa/main/format_pack.h +++ b/src/mesa/main/format_pack.h @@ -77,6 +77,10 @@ _mesa_pack_ubyte_rgba_row(gl_format format, GLuint n, const GLubyte src[][4], void *dst); +extern void +_mesa_pack_ubyte_rgba_rect(gl_format format, GLuint width, GLuint height, + const GLubyte *src, GLint srcRowStride, + void *dst, GLint dstRowStride); extern void _mesa_pack_float_z_row(gl_format format, GLuint n, |