1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
34 #include "pipe/p_defines.h"
35 #include "pipe/p_context.h"
36 #include "util/u_prim.h"
38 #include "lp_buffer.h"
39 #include "lp_context.h"
42 #include "draw/draw_context.h"
47 llvmpipe_draw_arrays(struct pipe_context
*pipe
, unsigned mode
,
48 unsigned start
, unsigned count
)
50 llvmpipe_draw_elements(pipe
, NULL
, 0, mode
, start
, count
);
55 * Draw vertex arrays, with optional indexing.
56 * Basically, map the vertex buffers (and drawing surfaces), then hand off
57 * the drawing to the 'draw' module.
60 llvmpipe_draw_range_elements(struct pipe_context
*pipe
,
61 struct pipe_buffer
*indexBuffer
,
65 unsigned mode
, unsigned start
, unsigned count
)
67 struct llvmpipe_context
*lp
= llvmpipe_context(pipe
);
68 struct draw_context
*draw
= lp
->draw
;
71 lp
->reduced_api_prim
= u_reduced_prim(mode
);
74 llvmpipe_update_derived( lp
);
76 llvmpipe_map_transfers(lp
);
81 for (i
= 0; i
< lp
->num_vertex_buffers
; i
++) {
82 void *buf
= llvmpipe_buffer(lp
->vertex_buffer
[i
].buffer
)->data
;
83 draw_set_mapped_vertex_buffer(draw
, i
, buf
);
86 /* Map index buffer, if present */
88 void *mapped_indexes
= llvmpipe_buffer(indexBuffer
)->data
;
89 draw_set_mapped_element_buffer_range(draw
, indexSize
,
95 /* no index/element buffer */
96 draw_set_mapped_element_buffer_range(draw
, 0, start
,
97 start
+ count
- 1, NULL
);
101 draw_arrays(draw
, mode
, start
, count
);
104 * unmap vertex/index buffers
106 for (i
= 0; i
< lp
->num_vertex_buffers
; i
++) {
107 draw_set_mapped_vertex_buffer(draw
, i
, NULL
);
110 draw_set_mapped_element_buffer(draw
, 0, NULL
);
114 * TODO: Flush only when a user vertex/index buffer is present
115 * (or even better, modify draw module to do this
116 * internally when this condition is seen?)
120 /* Note: leave drawing surfaces mapped */
122 lp
->dirty_render_cache
= TRUE
;
127 llvmpipe_draw_elements(struct pipe_context
*pipe
,
128 struct pipe_buffer
*indexBuffer
,
130 unsigned mode
, unsigned start
, unsigned count
)
132 llvmpipe_draw_range_elements( pipe
, indexBuffer
,
135 mode
, start
, count
);