From: Kenneth Graunke <kenneth@whitecape.org>
Date: Tue, 23 Apr 2013 06:13:47 +0000 (-0700)
Subject: mesa: Add an unpack function for ARGB2101010_UINT.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=531be501de7530ede3c0ea7a1d94516df37e4ae5;p=mesa.git

mesa: Add an unpack function for ARGB2101010_UINT.

v2: Remove extra parenthesis (suggested by Brian).

NOTE: This is a candidate for stable branches.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=63569
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
---

diff --git a/src/mesa/main/format_unpack.c b/src/mesa/main/format_unpack.c
index 03221c307db..9d565ccf1b3 100644
--- a/src/mesa/main/format_unpack.c
+++ b/src/mesa/main/format_unpack.c
@@ -610,6 +610,20 @@ unpack_ARGB2101010(const void *src, GLfloat dst[][4], GLuint n)
 }
 
 
+static void
+unpack_ARGB2101010_UINT(const void *src, GLfloat dst[][4], GLuint n)
+{
+   const GLuint *s = (const GLuint *) src;
+   GLuint i;
+   for (i = 0; i < n; i++) {
+      dst[i][RCOMP] = (GLfloat)((s[i] >> 20) & 0x3ff);
+      dst[i][GCOMP] = (GLfloat)((s[i] >> 10) & 0x3ff);
+      dst[i][BCOMP] = (GLfloat)((s[i] >>  0) & 0x3ff);
+      dst[i][ACOMP] = (GLfloat)((s[i] >> 30) &  0x03);
+   }
+}
+
+
 static void
 unpack_ABGR2101010_UINT(const void *src, GLfloat dst[][4], GLuint n)
 {
@@ -1771,6 +1785,7 @@ get_unpack_rgba_function(gl_format format)
       table[MESA_FORMAT_GR1616] = unpack_GR1616;
       table[MESA_FORMAT_RG1616] = unpack_RG1616;
       table[MESA_FORMAT_ARGB2101010] = unpack_ARGB2101010;
+      table[MESA_FORMAT_ARGB2101010_UINT] = unpack_ARGB2101010_UINT;
       table[MESA_FORMAT_ABGR2101010_UINT] = unpack_ABGR2101010_UINT;
       table[MESA_FORMAT_Z24_S8] = unpack_Z24_S8;
       table[MESA_FORMAT_S8_Z24] = unpack_S8_Z24;