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
39 struct _mesa_index_buffer;
40 struct _mesa_prim;
41 struct gl_context;
42 struct st_context;
43
44 void st_init_draw_functions(struct pipe_screen *screen,
45 struct dd_function_table *functions);
46
47 void st_destroy_draw( struct st_context *st );
48
49 struct draw_context *st_get_draw_context(struct st_context *st);
50
51 extern void
52 st_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 */
71 static inline unsigned
pointer_to_offset(const void * ptr)72 pointer_to_offset(const void *ptr)
73 {
74 return (unsigned) (((GLsizeiptr) ptr) & 0xffffffffUL);
75 }
76
77
78 bool
79 st_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
85 void
86 st_draw_transform_feedback(struct gl_context *ctx, GLenum mode,
87 unsigned num_instances, unsigned stream,
88 struct gl_transform_feedback_object *tfb_vertcount);
89
90 void
91 st_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
103 bool
104 st_draw_hw_select_prepare_common(struct gl_context *ctx);
105 bool
106 st_draw_hw_select_prepare_mode(struct gl_context *ctx, struct pipe_draw_info *info);
107 void
108 st_init_hw_select_draw_functions(struct pipe_screen *screen,
109 struct dd_function_table *functions);
110
111 #endif
112