cell: send rasterizer state to SPUs in proper way, remove front_winding hack

src/gallium/drivers/cell/common.h

@@ -99,8 +99,9 @@
 #define CELL_CMD_STATE_FRAGMENT_PROGRAM 19
 #define CELL_CMD_STATE_ATTRIB_FETCH  20
 #define CELL_CMD_STATE_FS_CONSTANTS  21
-#define CELL_CMD_VS_EXECUTE          22
-#define CELL_CMD_FLUSH_BUFFER_RANGE  23
+#define CELL_CMD_STATE_RASTERIZER    22
+#define CELL_CMD_VS_EXECUTE          23
+#define CELL_CMD_FLUSH_BUFFER_RANGE  24
 
 /** Command/batch buffers */
 #define CELL_NUM_BUFFERS 4
@@ -156,13 +157,23 @@ struct cell_command_fragment_program
  */
 struct cell_command_framebuffer
 {
-   uint64_t opcode;     /**< CELL_CMD_FRAMEBUFFER */
+   uint64_t opcode;     /**< CELL_CMD_STATE_FRAMEBUFFER */
    int width, height;
    void *color_start, *depth_start;
    enum pipe_format color_format, depth_format;
 };
 
 
+/**
+ * Tell SPUs about rasterizer state.
+ */
+struct cell_command_rasterizer
+{
+   uint64_t opcode;    /**< CELL_CMD_STATE_RASTERIZER */
+   struct pipe_rasterizer_state rasterizer;
+};
+
+
 /**
  * Clear framebuffer to the given value/color.
  */
@@ -238,7 +249,6 @@ struct cell_command_render
    float xmin, ymin, xmax, ymax;  /* XXX another dummy field */
    uint min_index;
    boolean inline_verts;
-   uint front_winding; /* the rasterizer needs to be able to determine facing to apply front/back-facing stencil */
 };
 
 

src/gallium/drivers/cell/ppu/cell_state_emit.c

@@ -147,6 +147,13 @@ cell_emit_state(struct cell_context *cell)
 #endif
    }
 
+   if (cell->dirty & (CELL_NEW_RASTERIZER)) {
+      struct cell_command_rasterizer *rast =
+         cell_batch_alloc(cell, sizeof(*rast));
+      rast->opcode = CELL_CMD_STATE_RASTERIZER;
+      rast->rasterizer = *cell->rasterizer;
+   }
+
    if (cell->dirty & (CELL_NEW_FS)) {
       /* Send new fragment program to SPUs */
       struct cell_command_fragment_program *fp

src/gallium/drivers/cell/ppu/cell_vbuf.c

@@ -214,7 +214,6 @@ cell_vbuf_draw(struct vbuf_render *vbr,
 
       render->opcode = CELL_CMD_RENDER;
       render->prim_type = cvbr->prim;
-      render->front_winding = cell->rasterizer->front_winding;
 
       render->num_indexes = nr_indices;
       render->min_index = min_index;

src/gallium/drivers/cell/spu/spu_command.c

@@ -583,6 +583,14 @@ cmd_batch(uint opcode)
       case CELL_CMD_STATE_FS_CONSTANTS:
          pos = cmd_state_fs_constants(buffer, pos);
          break;
+      case CELL_CMD_STATE_RASTERIZER:
+         {
+            struct cell_command_rasterizer *rast =
+               (struct cell_command_rasterizer *) &buffer[pos];
+            spu.rasterizer = rast->rasterizer;
+            pos += sizeof(*rast) / 8;
+         }
+         break;
       case CELL_CMD_STATE_SAMPLER:
          {
             struct cell_command_sampler *sampler

src/gallium/drivers/cell/spu/spu_main.h

@@ -153,6 +153,7 @@ struct spu_global
    struct pipe_blend_state blend;
    struct pipe_blend_color blend_color;
    struct pipe_sampler_state sampler[PIPE_MAX_SAMPLERS];
+   struct pipe_rasterizer_state rasterizer;
    struct spu_texture texture[PIPE_MAX_SAMPLERS];
    struct vertex_info vertex_info;
 

src/gallium/drivers/cell/spu/spu_render.c

@@ -279,7 +279,7 @@ cmd_render(const struct cell_command_render *render, uint *pos_incr)
          v1 = (const float *) (vertices + indexes[j+1] * vertex_size);
          v2 = (const float *) (vertices + indexes[j+2] * vertex_size);
 
-         drawn += tri_draw(v0, v1, v2, tx, ty, render->front_winding);
+         drawn += tri_draw(v0, v1, v2, tx, ty);
       }
 
       //printf("SPU %u: drew %u of %u\n", spu.init.id, drawn, render->num_indexes/3);

src/gallium/drivers/cell/spu/spu_tri.c

@@ -775,7 +775,7 @@ determinant(const float *v0, const float *v1, const float *v2)
  */
 boolean
 tri_draw(const float *v0, const float *v1, const float *v2,
-         uint tx, uint ty, uint front_winding)
+         uint tx, uint ty)
 {
    setup.tx = tx;
    setup.ty = ty;
@@ -790,7 +790,7 @@ tri_draw(const float *v0, const float *v1, const float *v2,
     * which will be needed for front/back-face stencil application
     */
    float det = determinant(v0, v1, v2);
-   setup.facing = (det > 0.0) ^ (front_winding == PIPE_WINDING_CW);
+   setup.facing = (det > 0.0) ^ (spu.rasterizer.front_winding == PIPE_WINDING_CW);
 
    if (!setup_sort_vertices((struct vertex_header *) v0,
                             (struct vertex_header *) v1,

src/gallium/drivers/cell/spu/spu_tri.h

@@ -31,7 +31,7 @@
 
 
 extern boolean
-tri_draw(const float *v0, const float *v1, const float *v2, uint tx, uint ty, uint front_winding);
+tri_draw(const float *v0, const float *v1, const float *v2, uint tx, uint ty);
 
 
 #endif /* SPU_TRI_H */