gallivm,llvmpipe,draw: Support multiple constant buffers.

[mesa.git] / 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 c5fb15484c59308a27a016ee9f3ebc6808dcdb70..315601e1b6a97668c74209fd56828f0d93b714f3 100644 (file)
--- a/src/gallium/drivers/llvmpipe/lp_rast.h
+++ b/src/gallium/drivers/llvmpipe/lp_rast.h
@@ -78,13 +78,14 @@ struct lp_rast_state {
  * These pointers point into the bin data buffer.
  */
 struct lp_rast_shader_inputs {
-   unsigned frontfacing;     /** One for front-facing */
-   unsigned disable:1;  /** Partially binned, disable this command */
-   unsigned opaque:1;   /** Is opaque */
-
-   float (*a0)[4];
-   float (*dadx)[4];
-   float (*dady)[4];
+   unsigned frontfacing:1;      /** True for front-facing */
+   unsigned disable:1;          /** Partially binned, disable this command */
+   unsigned opaque:1;           /** Is opaque */
+   unsigned pad0:29;            /* wasted space */
+   unsigned stride;             /* how much to advance data between a0, dadx, dady */
+   unsigned pad2;               /* wasted space */
+   unsigned pad3;               /* wasted space */
+   /* followed by a0, dadx, dady and planes[] */
 };
 
 /* Note: the order of these values is important as they are loaded by
@@ -99,9 +100,6 @@ struct lp_rast_plane {
 
    /* one-pixel sized trivial reject offsets for each plane */
    int eo;
-
-   /* one-pixel sized trivial accept offsets for each plane */
-   int ei;
 };
 
 /**
@@ -111,17 +109,24 @@ struct lp_rast_plane {
  * Objects of this type are put into the lp_setup_context::data buffer.
  */
 struct lp_rast_triangle {
-   /* inputs for the shader */
-   struct lp_rast_shader_inputs inputs;
-
 #ifdef DEBUG
    float v[3][2];
+   float pad0;
+   float pad1;
 #endif
 
-   struct lp_rast_plane plane[8]; /* NOTE: may allocate fewer planes */
+   /* inputs for the shader */
+   struct lp_rast_shader_inputs inputs;
+   /* planes are also allocated here */
 };
 
 
+#define GET_A0(inputs) ((float (*)[4])((inputs)+1))
+#define GET_DADX(inputs) ((float (*)[4])((char *)((inputs) + 1) + (inputs)->stride))
+#define GET_DADY(inputs) ((float (*)[4])((char *)((inputs) + 1) + 2 * (inputs)->stride))
+#define GET_PLANES(tri) ((struct lp_rast_plane *)((char *)(&(tri)->inputs + 1) + 3 * (tri)->inputs.stride))
+
+
 
 struct lp_rasterizer *
 lp_rast_create( unsigned num_threads );
@@ -147,7 +152,7 @@ union lp_rast_cmd_arg {
       unsigned plane_mask;
    } triangle;
    const struct lp_rast_state *set_state;
-   uint8_t clear_color[4];
+   float clear_color[4];
    struct {
       uint32_t value;
       uint32_t mask;
@@ -178,6 +183,22 @@ lp_rast_arg_triangle( const struct lp_rast_triangle *triangle,
    return arg;
 }
 
+/**
+ * Build argument for a contained triangle.
+ *
+ * All planes are enabled, so instead of the plane mask we pass the upper
+ * left coordinates of the a block that fully encloses the triangle.
+ */
+static INLINE union lp_rast_cmd_arg
+lp_rast_arg_triangle_contained( const struct lp_rast_triangle *triangle,
+                                unsigned x, unsigned y)
+{
+   union lp_rast_cmd_arg arg;
+   arg.triangle.tri = triangle;
+   arg.triangle.plane_mask = x | (y << 8);
+   return arg;
+}
+
 static INLINE union lp_rast_cmd_arg
 lp_rast_arg_state( const struct lp_rast_state *state )
 {