diff options
| author | Marek Olšák <[email protected]> | 2012-01-23 03:11:17 +0100 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2012-01-25 12:35:18 +0100 |
| commit | bc1c8369384b5e16547c5bf9728aa78f8dfd66cc (patch) | |
| tree | a09267d88b2c604491a607467e28a7f8fbae4146 /src/gallium/drivers/r300/r300_state.c | |
| parent | c2e2b58a58880c9b9f189fc154205e99144e9502 (diff) | |
st/mesa: do vertex and fragment color clamping in shaders
For ARB_color_buffer_float. Most hardware can't do it and st/mesa is
the perfect place for a fallback.
The exceptions are:
- r500 (vertex clamp only)
- nv50 (both)
- nvc0 (both)
- softpipe (both)
We also have to take into account that r300 can do CLAMPED vertex colors only,
while r600 can do UNCLAMPED vertex colors only. The difference can be expressed
with the two new CAPs.
Diffstat (limited to 'src/gallium/drivers/r300/r300_state.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_state.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c index 2bc703669ae..5d4a895e87c 100644 --- a/src/gallium/drivers/r300/r300_state.c +++ b/src/gallium/drivers/r300/r300_state.c @@ -1036,7 +1036,8 @@ static void* r300_create_rs_state(struct pipe_context* pipe, float point_texcoord_bottom = 0;/* R300_GA_POINT_T0: 0x4204 */ float point_texcoord_right = 1; /* R300_GA_POINT_S1: 0x4208 */ float point_texcoord_top = 0; /* R300_GA_POINT_T1: 0x420c */ - boolean vclamp = state->clamp_vertex_color; + boolean vclamp = state->clamp_vertex_color || + !r300_context(pipe)->screen->caps.is_r500; CB_LOCALS; /* Copy rasterizer state. */ |