From 1c04731b8721850b6abb12a43a3eec616b850e86 Mon Sep 17 00:00:00 2001 From: Zack Rusin Date: Wed, 1 Jul 2009 10:42:58 -0400 Subject: gallium: fix the front face semantics mesa allocates both frontface and pointcoord registers within the fog coordinate register, by using swizzling. to make it cleaner and easier for drivers we want each of them in its own register. so when doing compilation from the mesa IR to tgsi allocate new registers for both and add new semantics to the respective declarations. --- src/gallium/drivers/softpipe/sp_setup.c | 27 +++++++++++-------------- src/gallium/drivers/softpipe/sp_state_derived.c | 1 + 2 files changed, 13 insertions(+), 15 deletions(-) (limited to 'src/gallium/drivers') diff --git a/src/gallium/drivers/softpipe/sp_setup.c b/src/gallium/drivers/softpipe/sp_setup.c index e5be65242d..1eb23cd6b6 100644 --- a/src/gallium/drivers/softpipe/sp_setup.c +++ b/src/gallium/drivers/softpipe/sp_setup.c @@ -785,11 +785,10 @@ static void setup_tri_coefficients( struct setup_context *setup ) assert(0); } - if (spfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FOG) { - /* FOG.y = front/back facing XXX fix this */ - setup->coef[fragSlot].a0[1] = 1.0f - setup->quad.input.facing; - setup->coef[fragSlot].dadx[1] = 0.0; - setup->coef[fragSlot].dady[1] = 0.0; + if (spfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FACE) { + setup->coef[fragSlot].a0[0] = 1.0f - setup->quad.input.facing; + setup->coef[fragSlot].dadx[0] = 0.0; + setup->coef[fragSlot].dady[0] = 0.0; } } } @@ -1096,11 +1095,10 @@ setup_line_coefficients(struct setup_context *setup, assert(0); } - if (spfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FOG) { - /* FOG.y = front/back facing XXX fix this */ - setup->coef[fragSlot].a0[1] = 1.0f - setup->quad.input.facing; - setup->coef[fragSlot].dadx[1] = 0.0; - setup->coef[fragSlot].dady[1] = 0.0; + if (spfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FACE) { + setup->coef[fragSlot].a0[0] = 1.0f - setup->quad.input.facing; + setup->coef[fragSlot].dadx[0] = 0.0; + setup->coef[fragSlot].dady[0] = 0.0; } } return TRUE; @@ -1342,11 +1340,10 @@ setup_point( struct setup_context *setup, assert(0); } - if (spfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FOG) { - /* FOG.y = front/back facing XXX fix this */ - setup->coef[fragSlot].a0[1] = 1.0f - setup->quad.input.facing; - setup->coef[fragSlot].dadx[1] = 0.0; - setup->coef[fragSlot].dady[1] = 0.0; + if (spfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FACE) { + setup->coef[fragSlot].a0[0] = 1.0f - setup->quad.input.facing; + setup->coef[fragSlot].dadx[0] = 0.0; + setup->coef[fragSlot].dady[0] = 0.0; } } diff --git a/src/gallium/drivers/softpipe/sp_state_derived.c b/src/gallium/drivers/softpipe/sp_state_derived.c index 6b6a4c3ff3..75551000c9 100644 --- a/src/gallium/drivers/softpipe/sp_state_derived.c +++ b/src/gallium/drivers/softpipe/sp_state_derived.c @@ -110,6 +110,7 @@ softpipe_get_vertex_info(struct softpipe_context *softpipe) break; case TGSI_SEMANTIC_GENERIC: + case TGSI_SEMANTIC_FACE: /* this includes texcoords and varying vars */ src = draw_find_vs_output(softpipe->draw, TGSI_SEMANTIC_GENERIC, spfs->info.input_semantic_index[i]); -- cgit v1.2.3