mesa: add MESA_FORMAT_R8G8B8A8_SRGB

To match PIPE_FORMAT_R8G8B8A8_SRGB.
v2: fix component name copy&paste bugs

Reviewed-by: José Fonseca <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>

1 files changed, 14 insertions, 0 deletions

diff --git a/src/mesa/main/format_unpack.c b/src/mesa/main/format_unpack.c
index 1a0e7271c8d..2348ef60583 100644
--- a/src/mesa/main/format_unpack.c
+++ b/src/mesa/main/format_unpack.c
@@ -797,6 +797,19 @@ unpack_SARGB8(const void *src, GLfloat dst[][4], GLuint n)
 }
 
 static void
+unpack_SABGR8(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] = _mesa_nonlinear_to_linear( (s[i]      ) & 0xff );
+      dst[i][GCOMP] = _mesa_nonlinear_to_linear( (s[i] >>  8) & 0xff );
+      dst[i][BCOMP] = _mesa_nonlinear_to_linear( (s[i] >> 16) & 0xff );
+      dst[i][ACOMP] = UBYTE_TO_FLOAT( s[i] >> 24 ); /* linear! */
+   }
+}
+
+static void
 unpack_SL8(const void *src, GLfloat dst[][4], GLuint n)
 {
    const GLubyte *s = ((const GLubyte *) src);
@@ -2388,6 +2401,7 @@ get_unpack_rgba_function(mesa_format format)
       table[MESA_FORMAT_BGR_SRGB8] = unpack_SRGB8;
       table[MESA_FORMAT_A8B8G8R8_SRGB] = unpack_SRGBA8;
       table[MESA_FORMAT_B8G8R8A8_SRGB] = unpack_SARGB8;
+      table[MESA_FORMAT_R8G8B8A8_SRGB] = unpack_SABGR8;
       table[MESA_FORMAT_L_SRGB8] = unpack_SL8;
       table[MESA_FORMAT_L8A8_SRGB] = unpack_SLA8;
       table[MESA_FORMAT_SRGB_DXT1] = unpack_SRGB_DXT1;