draw_vbuf.h File Reference

Vertex buffer drawing stage. More...

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Data Structures
struct	vbuf_render
	Interface for hardware vertex buffer rendering. More...
Functions
struct draw_stage *	draw_vbuf_stage (struct draw_context *draw, struct vbuf_render *render)
	Create a new primitive vbuf/render stage.

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Detailed Description

Vertex buffer drawing stage.

Author:

Keith Whitwell <keith@tungstengraphics.com>

José Fonseca <jrfonsec@tungstengraphics.com>

Definition in file draw_vbuf.h.

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Function Documentation

struct draw_stage* draw_vbuf_stage	(	struct draw_context *	draw,
		struct vbuf_render *	render
	)			[read]

Create a new primitive vbuf/render stage.

Definition at line 455 of file draw_pipe_vbuf.c.

References align_malloc(), vbuf_stage::cache, CALLOC_STRUCT, draw_stage::destroy, draw_stage::draw, draw_stage::flush, vbuf_stage::indices, draw_stage::line, MAX2, vbuf_render::max_indices, vbuf_stage::max_indices, draw_stage::point, vbuf_stage::render, draw_stage::reset_stipple_counter, vbuf_stage::stage, translate_cache_create(), draw_stage::tri, UNDEFINED_VERTEX_ID, vbuf_destroy(), vbuf_first_line(), vbuf_first_point(), vbuf_first_tri(), vbuf_flush(), vbuf_reset_stipple_counter(), vbuf_stage::vertex_ptr, and vbuf_stage::vertices.

{
   struct vbuf_stage *vbuf = CALLOC_STRUCT(vbuf_stage);
   if (vbuf == NULL)
      goto fail;
   
   vbuf->stage.draw = draw;
   vbuf->stage.point = vbuf_first_point;
   vbuf->stage.line = vbuf_first_line;
   vbuf->stage.tri = vbuf_first_tri;
   vbuf->stage.flush = vbuf_flush;
   vbuf->stage.reset_stipple_counter = vbuf_reset_stipple_counter;
   vbuf->stage.destroy = vbuf_destroy;
   
   vbuf->render = render;
   vbuf->max_indices = MAX2(render->max_indices, UNDEFINED_VERTEX_ID-1);

   vbuf->indices = (ushort *) align_malloc( vbuf->max_indices * 
                                            sizeof(vbuf->indices[0]), 
                                            16 );
   if (!vbuf->indices)
      goto fail;

   vbuf->cache = translate_cache_create();
   if (!vbuf->cache) 
      goto fail;
      
   
   vbuf->vertices = NULL;
   vbuf->vertex_ptr = vbuf->vertices;
   
   return &vbuf->stage;

 fail:
   if (vbuf)
      vbuf_destroy(&vbuf->stage);
   
   return NULL;
}

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