From 52544aa23bebe68d6fc9b13dc55f6bb8c03430ff Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Wed, 16 Apr 2008 09:46:38 -0600 Subject: gallium: added util_pack_color_ub() --- src/gallium/auxiliary/util/u_pack_color.h | 39 +++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) (limited to 'src/gallium/auxiliary/util') diff --git a/src/gallium/auxiliary/util/u_pack_color.h b/src/gallium/auxiliary/util/u_pack_color.h index cd13823985..1f6604c554 100644 --- a/src/gallium/auxiliary/util/u_pack_color.h +++ b/src/gallium/auxiliary/util/u_pack_color.h @@ -39,6 +39,45 @@ #include "pipe/p_format.h" +/** + * Pack ubyte R,G,B,A into dest pixel. + */ +static INLINE void +util_pack_color_ub(ubyte r, ubyte g, ubyte b, ubyte a, + enum pipe_format format, void *dest) +{ + switch (format) { + case PIPE_FORMAT_R8G8B8A8_UNORM: + { + uint *d = (uint *) dest; + *d = (r << 24) | (g << 16) | (b << 8) | a; + } + return; + case PIPE_FORMAT_A8R8G8B8_UNORM: + { + uint *d = (uint *) dest; + *d = (a << 24) | (r << 16) | (g << 8) | b; + } + return; + case PIPE_FORMAT_B8G8R8A8_UNORM: + { + uint *d = (uint *) dest; + *d = (b << 24) | (g << 16) | (r << 8) | a; + } + return; + case PIPE_FORMAT_R5G6B5_UNORM: + { + ushort *d = (ushort *) dest; + *d = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | (b >> 3); + } + return; + /* XXX lots more cases to add */ + default: + debug_printf("gallium: unhandled format in util_pack_color_ub()"); + } +} + + /** * Note rgba outside [0,1] will be clamped for int pixel formats. */ -- cgit v1.2.3