gallium/util: add 1d/2d mipmap generation support

[mesa.git] / src / gallium / auxiliary / draw / draw_gs.h

diff --git a/src/gallium/auxiliary/draw/draw_gs.h b/src/gallium/auxiliary/draw/draw_gs.h
index d6a97d9c4effd4d5695d4d10494d3f844ca3b752..67bc1aa73ffc12a90533e20c305a88ef1f964c34 100644 (file)
--- a/src/gallium/auxiliary/draw/draw_gs.h
+++ b/src/gallium/auxiliary/draw/draw_gs.h
@@ -1,6 +1,6 @@
 /**************************************************************************
  * 
- * Copyright 2009 VMWare Inc.
+ * Copyright 2009 VMware, Inc.
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -54,23 +54,37 @@ struct draw_geometry_shader {
    unsigned input_primitive;
    unsigned output_primitive;
 
-   /* Extracted from shader:
-    */
-   const float (*immediates)[4];
+   unsigned *primitive_lengths;
+   unsigned emitted_vertices;
+   unsigned emitted_primitives;
+
+   float (*tmp_output)[4];
+   unsigned vertex_size;
+
+   unsigned in_prim_idx;
+   unsigned input_vertex_stride;
+   const float (*input)[4];
 };
 
-void draw_geometry_shader_run(struct draw_geometry_shader *shader,
-                              const float (*input)[4],
-                              float (*output)[4],
-                              const float (*constants)[4],
-                              unsigned count,
-                              unsigned input_stride,
-                              unsigned output_stride);
+/*
+ * Returns the number of vertices emitted.
+ * The vertex shader can emit any number of vertices as long as it's
+ * smaller than the GS_MAX_OUTPUT_VERTICES shader property.
+ */
+int draw_geometry_shader_run(struct draw_geometry_shader *shader,
+                             const void *constants[PIPE_MAX_CONSTANT_BUFFERS], 
+                             const unsigned constants_size[PIPE_MAX_CONSTANT_BUFFERS], 
+                             const struct draw_vertex_info *input_verts,
+                             const struct draw_prim_info *input_prim,
+                             struct draw_vertex_info *output_verts,
+                             struct draw_prim_info *output_prims );
 
 void draw_geometry_shader_prepare(struct draw_geometry_shader *shader,
                                   struct draw_context *draw);
 
 void draw_geometry_shader_delete(struct draw_geometry_shader *shader);
 
+int draw_gs_max_output_vertices(struct draw_geometry_shader *shader,
+                                unsigned pipe_prim);
 
 #endif