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setup the frontface register (fog.y, ATM)

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Brian 2007-12-18 16:00:31 -07:00
parent fb4eb8c91b
commit 8c20747834
1 changed files with 7 additions and 1 deletions
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8
src/mesa/pipe/softpipe/sp_prim_setup.c
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@ -516,7 +516,7 @@ setup_fragcoord_coeff(struct setup_stage *setup)
static void setup_tri_coefficients( struct setup_stage *setup )
{
const enum interp_mode *interp = setup->softpipe->vertex_info.interp_mode;
#define USE_INPUT_MAP 0
#define USE_INPUT_MAP 01
#if USE_INPUT_MAP
const struct pipe_shader_state *fs = &setup->softpipe->fs->shader;
#endif
@ -554,6 +554,12 @@ static void setup_tri_coefficients( struct setup_stage *setup )
*/
setup_fragcoord_coeff(setup);
}
else if (fs->input_semantic_name[fragSlot] == TGSI_SEMANTIC_FOG) {
/* FOG.y = front/back facing XXX fix this */
setup->coef[fragSlot].a0[1] = 1 - setup->quad.facing;
setup->coef[fragSlot].dadx[1] = 0.0;
setup->coef[fragSlot].dady[1] = 0.0;
}
else {
#endif
uint j;