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authorLuca Barbieri <luca@luca-barbieri.com>2011-02-16 00:14:49 +0100
committerMarek Olšák <maraeo@gmail.com>2011-03-29 12:04:55 +0200
commit47e3896dfd89a26abbe4ca2469c2480f3982b204 (patch)
tree3f64fd4340c66ee84da89506afd92c1f29f6dbb7 /src/mesa/state_tracker/st_atom_rasterizer.c
parente5c6a92a12b5cd7db205d72039f58d302b0be9d5 (diff)
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gallium: implement clamping controls (ARB_color_buffer_float)
BTW this changes the gallium interface. Some rather cosmetic changes by Marek. Squashed commit of the following: commit 513b37d484f0318311e84bb86ed4c93cdff71f13 Author: Luca Barbieri <luca@luca-barbieri.com> Date: Thu Aug 26 18:17:54 2010 +0200 mesa/st: respect fragment clamping in st_DrawPixels commit 546a31e42cad459d7a7a10ebf77fc5ffcf89e9b8 Author: Luca Barbieri <luca@luca-barbieri.com> Date: Thu Aug 26 18:17:28 2010 +0200 mesa/st: support fragment and vertex color clamping commit c406514a1fbee6891da4cf9ac3eebe4e4407ec13 Author: Luca Barbieri <luca@luca-barbieri.com> Date: Tue Aug 24 21:56:37 2010 +0200 mesa/st: expose ARB_color_buffer_float if unclamping is supported commit d0c5ea11b6f75f3da2f4ca989115f150ebc7cf8d Author: Luca Barbieri <luca@luca-barbieri.com> Date: Thu Aug 26 17:53:41 2010 +0200 mesa/st: use unclamped colors This assumes that Gallium is to be interpreted as given drivers the responsibility to clamp these colors if necessary. commit aef5c3c6be6edd076e955e37c80905bc447f8a82 Author: Luca Barbieri <luca@luca-barbieri.com> Date: Thu Aug 26 18:12:34 2010 +0200 mesa, mesa/st: handle read color clamping properly We set IMAGE_CLAMP_BIT in the caller based on _ClampReadColor, where the operation mandates it. (see the removed XXX comment. -Marek) TODO: did I get the set of operations mandating it right? commit 76bdfcfe3ff4145a1818e6cb6e227b730a5f12d8 Author: Luca Barbieri <luca@luca-barbieri.com> Date: Thu Aug 26 18:18:25 2010 +0200 gallium: add color clamping to the interface
Diffstat (limited to 'src/mesa/state_tracker/st_atom_rasterizer.c')
-rw-r--r--src/mesa/state_tracker/st_atom_rasterizer.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_atom_rasterizer.c b/src/mesa/state_tracker/st_atom_rasterizer.c
index 8bcccee..250cbb2 100644
--- a/src/mesa/state_tracker/st_atom_rasterizer.c
+++ b/src/mesa/state_tracker/st_atom_rasterizer.c
@@ -112,6 +112,8 @@ static void update_raster_state( struct st_context *st )
raster->light_twoside = 1;
}
+ raster->clamp_vertex_color = ctx->Light._ClampVertexColor;
+
/* _NEW_POLYGON
*/
if (ctx->Polygon.CullFlag) {
@@ -252,6 +254,9 @@ static void update_raster_state( struct st_context *st )
if (ctx->Scissor.Enabled)
raster->scissor = 1;
+ /* _NEW_FRAG_CLAMP */
+ raster->clamp_fragment_color = ctx->Color._ClampFragmentColor;
+
raster->gl_rasterization_rules = 1;
cso_set_rasterizer(st->cso_context, raster);
@@ -267,7 +272,8 @@ const struct st_tracked_state st_update_rasterizer = {
_NEW_POINT |
_NEW_POLYGON |
_NEW_PROGRAM |
- _NEW_SCISSOR), /* mesa state dependencies*/
+ _NEW_SCISSOR |
+ _NEW_FRAG_CLAMP), /* mesa state dependencies*/
ST_NEW_VERTEX_PROGRAM, /* state tracker dependencies */
},
update_raster_state /* update function */