1/**************************************************************************
2 *
3 * Copyright 2004 VMware, Inc.
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 VMWARE 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 <keithw@vmware.com>
31  */
32
33
34#ifndef ST_DRAW_H
35#define ST_DRAW_H
36
37#include "main/glheader.h"
38
39struct _mesa_index_buffer;
40struct _mesa_prim;
41struct gl_context;
42struct st_context;
43
44void st_init_draw_functions(struct pipe_screen *screen,
45                            struct dd_function_table *functions);
46
47void st_destroy_draw( struct st_context *st );
48
49struct draw_context *st_get_draw_context(struct st_context *st);
50
51extern void
52st_feedback_draw_vbo(struct gl_context *ctx,
53                     const struct _mesa_prim *prims,
54                     unsigned nr_prims,
55                     const struct _mesa_index_buffer *ib,
56		     bool index_bounds_valid,
57                     bool primitive_restart,
58                     unsigned restart_index,
59                     unsigned min_index,
60                     unsigned max_index,
61                     unsigned num_instances,
62                     unsigned base_instance);
63
64/**
65 * When drawing with VBOs, the addresses specified with
66 * glVertex/Color/TexCoordPointer() are really offsets into the VBO, not real
67 * addresses.  At some point we need to convert those pointers to offsets.
68 * This function is basically a cast wrapper to avoid warnings when building
69 * in 64-bit mode.
70 */
71static inline unsigned
72pointer_to_offset(const void *ptr)
73{
74   return (unsigned) (((GLsizeiptr) ptr) & 0xffffffffUL);
75}
76
77
78bool
79st_draw_quad(struct st_context *st,
80             float x0, float y0, float x1, float y1, float z,
81             float s0, float t0, float s1, float t1,
82             const float *color,
83             unsigned num_instances);
84
85void
86st_draw_transform_feedback(struct gl_context *ctx, GLenum mode,
87                           unsigned num_instances, unsigned stream,
88                           struct gl_transform_feedback_object *tfb_vertcount);
89
90void
91st_indirect_draw_vbo(struct gl_context *ctx,
92                     GLuint mode,
93                     struct gl_buffer_object *indirect_data,
94                     GLsizeiptr indirect_offset,
95                     unsigned draw_count,
96                     unsigned stride,
97                     struct gl_buffer_object *indirect_draw_count,
98                     GLsizeiptr indirect_draw_count_offset,
99                     const struct _mesa_index_buffer *ib,
100                     bool primitive_restart,
101                     unsigned restart_index);
102
103bool
104st_draw_hw_select_prepare_common(struct gl_context *ctx);
105bool
106st_draw_hw_select_prepare_mode(struct gl_context *ctx, struct pipe_draw_info *info);
107void
108st_init_hw_select_draw_functions(struct pipe_screen *screen,
109                                 struct dd_function_table *functions);
110
111#endif
112