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]>

2 files changed, 19 insertions, 0 deletions

diff --git a/src/mesa/swrast/s_texfetch.c b/src/mesa/swrast/s_texfetch.c
index 9c173a8b3dd..8ba75348ff7 100644
--- a/src/mesa/swrast/s_texfetch.c
+++ b/src/mesa/swrast/s_texfetch.c
@@ -437,6 +437,12 @@ texfetch_funcs[] =
       fetch_texel_3d_sargb8
    },
    {
+      MESA_FORMAT_R8G8B8A8_SRGB,
+      fetch_texel_1d_sabgr8,
+      fetch_texel_2d_sabgr8,
+      fetch_texel_3d_sabgr8
+   },
+   {
       MESA_FORMAT_L_SRGB8,
       fetch_texel_1d_sl8,
       fetch_texel_2d_sl8,
diff --git a/src/mesa/swrast/s_texfetch_tmp.h b/src/mesa/swrast/s_texfetch_tmp.h
index 1db3adc7114..8821125a0e1 100644
--- a/src/mesa/swrast/s_texfetch_tmp.h
+++ b/src/mesa/swrast/s_texfetch_tmp.h
@@ -1015,6 +1015,19 @@ static void FETCH(sargb8)(const struct swrast_texture_image *texImage,
 
 
 
+/* Fetch texel from 1D, 2D or 3D sabgr8 texture, return 4 GLfloats */
+static void FETCH(sabgr8)(const struct swrast_texture_image *texImage,
+                          GLint i, GLint j, GLint k, GLfloat *texel )
+{
+   const GLuint s = *TEXEL_ADDR(GLuint, texImage, i, j, k, 1);
+   texel[RCOMP] = nonlinear_to_linear( (s      ) & 0xff );
+   texel[GCOMP] = nonlinear_to_linear( (s >>  8) & 0xff );
+   texel[BCOMP] = nonlinear_to_linear( (s >> 16) & 0xff );
+   texel[ACOMP] = UBYTE_TO_FLOAT( (s >> 24) ); /* linear! */
+}
+
+
+
 /* Fetch texel from 1D, 2D or 3D sl8 texture, return 4 GLfloats */
 static void FETCH(sl8)(const struct swrast_texture_image *texImage,
                        GLint i, GLint j, GLint k, GLfloat *texel )