From 22e6dc387039e79f6d1435ae8b7422a6514d5d10 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 18 Mar 2010 13:02:53 -0600 Subject: gallivm/llvmpipe: added lp_rast_shader_inputs::facing and pass through The triangle rasterizer sets this field to indicate front/back-facing. It gets passed into the generated fragment code as another parameter. Used now for stencil front/back selection but will also be used for fragment shaders in general (see TGSI_SEMANTIC_FACE). With this commit two-sided stenciling mostly works but there's still a bug or two... --- src/gallium/drivers/llvmpipe/lp_rast.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'src/gallium/drivers/llvmpipe/lp_rast.c') diff --git a/src/gallium/drivers/llvmpipe/lp_rast.c b/src/gallium/drivers/llvmpipe/lp_rast.c index 30b43cce19..3a51800c40 100644 --- a/src/gallium/drivers/llvmpipe/lp_rast.c +++ b/src/gallium/drivers/llvmpipe/lp_rast.c @@ -314,6 +314,7 @@ lp_rast_shade_tile(struct lp_rasterizer_task *task, /* run shader */ state->jit_function[RAST_WHOLE]( &state->jit_context, tile_x + x, tile_y + y, + inputs->facing, inputs->a0, inputs->dadx, inputs->dady, @@ -377,6 +378,7 @@ void lp_rast_shade_quads( struct lp_rasterizer_task *task, /* run shader */ state->jit_function[RAST_EDGE_TEST]( &state->jit_context, x, y, + inputs->facing, inputs->a0, inputs->dadx, inputs->dady, -- cgit v1.2.3