llvmpipe: more wipping

1 files changed, 129 insertions, 0 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_rast.h b/src/gallium/drivers/llvmpipe/lp_rast.h
new file mode 100644
index 00000000000..8f4bd52c9e5
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_rast.h
@@ -0,0 +1,129 @@
+
+#ifndef LP_RAST_H
+#define LP_RAST_H
+
+/* Initially create and program a single rasterizer directly.  Later
+ * will want multiple of these, one or two per core.  At that stage
+ * will probably pass command buffers into the rasterizers rather than
+ * individual function calls like this.
+ */
+struct lp_rasterizer;
+
+struct lp_rast_state {
+   /* State for the shader:
+    */
+   struct lp_jit_context jc;
+   
+   /* The shader itself.  Probably we also need to pass a pointer to
+    * the tile color/z/stencil data somehow:
+    */
+   void (*run)( struct lp_jit_context *jc,
+                struct quad_header **quads,
+                unsigned nr );
+};
+
+/* Coefficients necessary to run the shader at a given location:
+ */
+struct lp_rast_shader_inputs {
+
+   /* Current rasterizer state:
+    */
+   const struct lp_rast_state *state;
+
+   /* Attribute interpolation:
+    */
+   struct tgsi_interp_coef position_coef;
+   struct tgsi_interp_coef *coef;
+};
+
+
+/* Rasterization information for a triangle known to be in this bin,
+ * plus inputs to run the shader:
+ */
+struct lp_rast_triangle {
+   /* one-pixel sized trivial accept offsets for each plane */
+   float ei1;                   
+   float ei2;
+   float ei3;
+
+   /* one-pixel sized trivial reject offsets for each plane */
+   float eo1;                   
+   float eo2;
+   float eo3;
+
+   /* y deltas for vertex pairs */
+   float dy12;
+   float dy23;
+   float dy31;
+
+   /* x deltas for vertex pairs */
+   float dx12;
+   float dx23;
+   float dx31;
+
+   /* State to run the shader: */
+   struct lp_rast_shader_inputs inputs;
+};
+
+
+
+struct lp_rasterizer *lp_rast_create( void );
+
+void lp_rast_bind_surfaces( struct lp_rasterizer *,
+			    struct pipe_surface *color,
+			    struct pipe_surface *zstencil,
+			    const float *clear_color,
+			    double clear_depth,
+			    unsigned clear_stencil);
+
+/* Begining of each tile:
+ */
+void lp_rast_start_tile( struct lp_rasterizer *,
+			 unsigned x,
+			 unsigned y );
+
+
+
+union lp_rast_cmd_arg {
+   const struct lp_rast_shader_inputs *shade_tile;
+   const struct lp_rast_triangle *triangle;
+   const struct lp_rast_state *set_state;
+};
+
+
+/* Binnable Commands:
+ */
+void lp_rast_clear_color( struct lp_rasterizer *, 
+                          const union lp_rast_cmd_arg *);
+
+void lp_rast_clear_zstencil( struct lp_rasterizer *, 
+                             const union lp_rast_cmd_arg *);
+
+void lp_rast_load_color( struct lp_rasterizer *, 
+                         const union lp_rast_cmd_arg *);
+
+void lp_rast_load_zstencil( struct lp_rasterizer *, 
+                            const union lp_rast_cmd_arg *);
+
+void lp_rast_set_state( struct lp_rasterizer *, 
+                        const union lp_rast_cmd_arg * );
+
+void lp_rast_triangle( struct lp_rasterizer *, 
+                       const union lp_rast_cmd_arg * );
+
+void lp_rast_shade_tile( struct lp_rasterizer *,
+                         const union lp_rast_cmd_arg * );
+
+void lp_rast_store_color( struct lp_rasterizer *,
+                          const union lp_rast_cmd_arg *);
+
+void lp_rast_store_zstencil( struct lp_rasterizer *,
+                             const union lp_rast_cmd_arg *);
+
+
+/* Shutdown:
+ */
+void lp_rast_destroy( struct lp_rasterizer * );
+
+
+#endif