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authorBrian Paul <brian.paul@tungstengraphics.com>2008-04-16 09:46:38 -0600
committerBrian Paul <brian.paul@tungstengraphics.com>2008-04-16 16:53:44 -0600
commit52544aa23bebe68d6fc9b13dc55f6bb8c03430ff (patch)
tree948c4cd68998e762f1c88a312f208f9b1b5af96e /src/gallium/auxiliary/util
parentdc5a853c85d2daa8b7b0e6d32e00c4976746d704 (diff)
gallium: added util_pack_color_ub()
Diffstat (limited to 'src/gallium/auxiliary/util')
-rw-r--r--src/gallium/auxiliary/util/u_pack_color.h39
1 files changed, 39 insertions, 0 deletions
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
@@ -40,6 +40,45 @@
/**
+ * 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.
*/
static INLINE void