From d4b64167b56f780d0dea73193c345622888fbc16 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keithw@vmware.com>
Date: Thu, 17 Jun 2010 21:19:09 +0100
Subject: llvmpipe: pass mask into fragment shader

Move this code back out to C for now, will generate separately.

Shader now takes a mask parameter instead of C0/C1/C2/etc.

Shader does not currently use that parameter and rasterizes whole
pixel stamps always.
---
 src/gallium/drivers/llvmpipe/lp_rast.h | 82 ++++++++++++++++++++--------------
 1 file changed, 48 insertions(+), 34 deletions(-)

(limited to 'src/gallium/drivers/llvmpipe/lp_rast.h')

diff --git a/src/gallium/drivers/llvmpipe/lp_rast.h b/src/gallium/drivers/llvmpipe/lp_rast.h
index 80ca68f5a2..ae73e6d8c9 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast.h
+++ b/src/gallium/drivers/llvmpipe/lp_rast.h
@@ -83,9 +83,6 @@ struct lp_rast_shader_inputs {
    float (*a0)[4];
    float (*dadx)[4];
    float (*dady)[4];
-
-   /* edge/step info for 3 edges and 4x4 block of pixels */
-   PIPE_ALIGN_VAR(16) int step[3][16];
 };
 
 struct lp_rast_clearzs {
@@ -93,6 +90,22 @@ struct lp_rast_clearzs {
    unsigned clearzs_mask;
 };
 
+struct lp_rast_plane {
+   /* one-pixel sized trivial accept offsets for each plane */
+   int ei;
+
+   /* one-pixel sized trivial reject offsets for each plane */
+   int eo;
+
+   /* edge function values at minx,miny ?? */
+   int c;
+
+   int dcdx;
+   int dcdy;
+   
+   /* edge/step info for 3 edges and 4x4 block of pixels */
+   const int *step;
+};
 
 /**
  * Rasterization information for a triangle known to be in this bin,
@@ -101,35 +114,16 @@ struct lp_rast_clearzs {
  * Objects of this type are put into the lp_setup_context::data buffer.
  */
 struct lp_rast_triangle {
+   /* inputs for the shader */
+   PIPE_ALIGN_VAR(16) struct lp_rast_shader_inputs inputs;
+
+   int step[3][16];
+
 #ifdef DEBUG
    float v[3][2];
 #endif
 
-   /* one-pixel sized trivial accept offsets for each plane */
-   int ei1;                   
-   int ei2;
-   int ei3;
-
-   /* one-pixel sized trivial reject offsets for each plane */
-   int eo1;                   
-   int eo2;
-   int eo3;
-
-   /* y deltas for vertex pairs (in fixed pt) */
-   int dy12;
-   int dy23;
-   int dy31;
-
-   /* x deltas for vertex pairs (in fixed pt) */
-   int dx12;
-   int dx23;
-   int dx31;
-
-   /* edge function values at minx,miny ?? */
-   int c1, c2, c3;
-
-   /* inputs for the shader */
-   PIPE_ALIGN_VAR(16) struct lp_rast_shader_inputs inputs;
+   struct lp_rast_plane plane[7]; /* NOTE: may allocate fewer planes */
 };
 
 
@@ -153,7 +147,10 @@ lp_rast_finish( struct lp_rasterizer *rast );
 
 union lp_rast_cmd_arg {
    const struct lp_rast_shader_inputs *shade_tile;
-   const struct lp_rast_triangle *triangle;
+   struct {
+      const struct lp_rast_triangle *tri;
+      unsigned plane_mask;
+   } triangle;
    const struct lp_rast_state *set_state;
    uint8_t clear_color[4];
    const struct lp_rast_clearzs *clear_zstencil;
@@ -173,10 +170,12 @@ lp_rast_arg_inputs( const struct lp_rast_shader_inputs *shade_tile )
 }
 
 static INLINE union lp_rast_cmd_arg
-lp_rast_arg_triangle( const struct lp_rast_triangle *triangle )
+lp_rast_arg_triangle( const struct lp_rast_triangle *triangle,
+                      unsigned plane_mask)
 {
    union lp_rast_cmd_arg arg;
-   arg.triangle = triangle;
+   arg.triangle.tri = triangle;
+   arg.triangle.plane_mask = plane_mask;
    return arg;
 }
 
@@ -229,16 +228,31 @@ void lp_rast_clear_zstencil( struct lp_rasterizer_task *,
 void lp_rast_set_state( struct lp_rasterizer_task *, 
                         const union lp_rast_cmd_arg );
 
-void lp_rast_triangle( struct lp_rasterizer_task *, 
-                       const union lp_rast_cmd_arg );
+void lp_rast_triangle_1( struct lp_rasterizer_task *, 
+                         const union lp_rast_cmd_arg );
+void lp_rast_triangle_2( struct lp_rasterizer_task *, 
+                         const union lp_rast_cmd_arg );
+void lp_rast_triangle_3( struct lp_rasterizer_task *, 
+                         const union lp_rast_cmd_arg );
+void lp_rast_triangle_4( struct lp_rasterizer_task *, 
+                         const union lp_rast_cmd_arg );
+void lp_rast_triangle_5( struct lp_rasterizer_task *, 
+                         const union lp_rast_cmd_arg );
+void lp_rast_triangle_6( struct lp_rasterizer_task *, 
+                         const union lp_rast_cmd_arg );
+void lp_rast_triangle_7( struct lp_rasterizer_task *, 
+                         const union lp_rast_cmd_arg );
 
 void lp_rast_shade_tile( struct lp_rasterizer_task *,
                          const union lp_rast_cmd_arg );
 
+void lp_rast_shade_tile_opaque( struct lp_rasterizer_task *,
+                                const union lp_rast_cmd_arg );
+
 void lp_rast_fence( struct lp_rasterizer_task *,
                     const union lp_rast_cmd_arg );
 
-void lp_rast_store_color( struct lp_rasterizer_task *,
+void lp_rast_store_linear_color( struct lp_rasterizer_task *,
                           const union lp_rast_cmd_arg );
 
 
-- 
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