st_draw.h revision f9995b30756140724f41daf963fa06167912be7f 
1/**************************************************************************
2 *
3 * Copyright 2004 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 /*
29  * Authors:
30  *   Keith Whitwell <keith@tungstengraphics.com>
31  */
32
33
34#ifndef ST_DRAW_H
35#define ST_DRAW_H
36
37#include "main/compiler.h"
38#include "main/glheader.h"
39#include "main/mtypes.h"
40
41struct _mesa_index_buffer;
42struct _mesa_prim;
43struct st_context;
44
45void st_init_draw( struct st_context *st );
46
47void st_destroy_draw( struct st_context *st );
48
49extern void
50st_draw_vbo(struct gl_context *ctx,
51            const struct gl_client_array **arrays,
52            const struct _mesa_prim *prims,
53            GLuint nr_prims,
54            const struct _mesa_index_buffer *ib,
55	    GLboolean index_bounds_valid,
56            GLuint min_index,
57            GLuint max_index);
58
59extern void
60st_feedback_draw_vbo(struct gl_context *ctx,
61                     const struct gl_client_array **arrays,
62                     const struct _mesa_prim *prims,
63                     GLuint nr_prims,
64                     const struct _mesa_index_buffer *ib,
65		     GLboolean index_bounds_valid,
66                     GLuint min_index,
67                     GLuint max_index);
68
69/* Internal function:
70 */
71extern GLuint
72st_pipe_vertex_format(GLenum type, GLuint size, GLenum format,
73                      GLboolean normalized);
74
75
76/**
77 * When drawing with VBOs, the addresses specified with
78 * glVertex/Color/TexCoordPointer() are really offsets into the VBO, not real
79 * addresses.  At some point we need to convert those pointers to offsets.
80 * This function is basically a cast wrapper to avoid warnings when building
81 * in 64-bit mode.
82 */
83static INLINE unsigned
84pointer_to_offset(const void *ptr)
85{
86   return (unsigned) (((unsigned long) ptr) & 0xffffffffUL);
87}
88
89
90#endif
91