Cell: basic triangle rendering works.

The cell "render_stage" (last in the "draw" pipeline) emits vertices into
a buffer which is pulled by the SPUs in response to a "RENDER" command.
This is pretty much temporary/scaffold code for now.

1 files changed, 21 insertions, 0 deletions

diff --git a/src/mesa/pipe/cell/common.h b/src/mesa/pipe/cell/common.h
index f7f1e2eb41..0868e8d90f 100644
--- a/src/mesa/pipe/cell/common.h
+++ b/src/mesa/pipe/cell/common.h
@@ -51,6 +51,7 @@
 #define CELL_CMD_CLEAR_TILES  3
 #define CELL_CMD_TRIANGLE     4
 #define CELL_CMD_FINISH       5
+#define CELL_CMD_RENDER       6
 
 
 /**
@@ -80,12 +81,22 @@ struct cell_command_triangle
 } ALIGN16_ATTRIB;
 
 
+struct cell_command_render
+{
+   uint prim_type;
+   uint num_verts;
+   float xmin, ymin, xmax, ymax;
+   void *vertex_data;
+} ALIGN16_ATTRIB;
+
+
 /** XXX unions don't seem to work */
 struct cell_command
 {
    struct cell_command_framebuffer fb;
    struct cell_command_clear_tiles clear;
    struct cell_command_triangle tri;
+   struct cell_command_render render;
 } ALIGN16_ATTRIB;
 
 
@@ -98,6 +109,16 @@ struct cell_init_info
 } ALIGN16_ATTRIB;
 
 
+/** Temporary */
+#define CELL_MAX_VERTS 48
+#define CELL_MAX_ATTRIBS 2
+struct cell_prim_buffer
+{
+   float vertex[CELL_MAX_VERTS][CELL_MAX_ATTRIBS][4] ALIGN16_ATTRIB;
+   float xmin, ymin, xmax, ymax;
+   uint num_verts;
+} ALIGN16_ATTRIB;
+
 
 
 #endif /* CELL_COMMON_H */