diff options
Diffstat (limited to 'src/mesa/pipe/softpipe/sp_prim_setup.c')
| -rw-r--r-- | src/mesa/pipe/softpipe/sp_prim_setup.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/mesa/pipe/softpipe/sp_prim_setup.c b/src/mesa/pipe/softpipe/sp_prim_setup.c index 8d8dceadc5..2ccf5e2624 100644 --- a/src/mesa/pipe/softpipe/sp_prim_setup.c +++ b/src/mesa/pipe/softpipe/sp_prim_setup.c @@ -480,15 +480,23 @@ static void tri_persp_coeff( struct setup_stage *setup, static void setup_fragcoord_coeff(struct setup_stage *setup) { - const int winHeight = setup->softpipe->framebuffer.cbufs[0]->height; /*X*/ setup->coef[0].a0[0] = 0; setup->coef[0].dadx[0] = 1.0; setup->coef[0].dady[0] = 0.0; /*Y*/ - setup->coef[0].a0[1] = winHeight - 1; + if (setup->softpipe->rasterizer->origin_lower_left) { + /* y=0=bottom */ + const int winHeight = setup->softpipe->framebuffer.cbufs[0]->height; + setup->coef[0].a0[1] = winHeight - 1; + setup->coef[0].dady[1] = -1.0; + } + else { + /* y=0=top */ + setup->coef[0].a0[1] = 0.0; + setup->coef[0].dady[1] = 1.0; + } setup->coef[0].dadx[1] = 0.0; - setup->coef[0].dady[1] = -1.0; /*Z*/ setup->coef[0].a0[2] = setup->posCoef.a0[2]; setup->coef[0].dadx[2] = setup->posCoef.dadx[2]; |