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 "pipe/p_winsys.h"
38 #include "sp_context.h"
41 #include "draw/draw_context.h"
46 softpipe_map_constant_buffers(struct softpipe_context
*sp
)
48 struct pipe_winsys
*ws
= sp
->pipe
.winsys
;
50 for (i
= 0; i
< PIPE_SHADER_TYPES
; i
++) {
51 if (sp
->constants
[i
].size
)
52 sp
->mapped_constants
[i
] = ws
->buffer_map(ws
, sp
->constants
[i
].buffer
,
53 PIPE_BUFFER_USAGE_CPU_READ
);
56 draw_set_mapped_constant_buffer(sp
->draw
,
57 sp
->mapped_constants
[PIPE_SHADER_VERTEX
],
58 sp
->constants
[PIPE_SHADER_VERTEX
].size
);
62 softpipe_unmap_constant_buffers(struct softpipe_context
*sp
)
64 struct pipe_winsys
*ws
= sp
->pipe
.winsys
;
67 /* really need to flush all prims since the vert/frag shaders const buffers
72 draw_set_mapped_constant_buffer(sp
->draw
, NULL
, 0);
74 for (i
= 0; i
< 2; i
++) {
75 if (sp
->constants
[i
].size
)
76 ws
->buffer_unmap(ws
, sp
->constants
[i
].buffer
);
77 sp
->mapped_constants
[i
] = NULL
;
82 static unsigned reduced_prim
[PIPE_PRIM_POLYGON
+ 1] = {
97 softpipe_draw_arrays(struct pipe_context
*pipe
, unsigned mode
,
98 unsigned start
, unsigned count
)
100 return softpipe_draw_elements(pipe
, NULL
, 0, mode
, start
, count
);
106 * Draw vertex arrays, with optional indexing.
107 * Basically, map the vertex buffers (and drawing surfaces), then hand off
108 * the drawing to the 'draw' module.
110 * XXX should the element buffer be specified/bound with a separate function?
114 softpipe_draw_range_elements(struct pipe_context
*pipe
,
115 struct pipe_buffer
*indexBuffer
,
119 unsigned mode
, unsigned start
, unsigned count
)
121 struct softpipe_context
*sp
= softpipe_context(pipe
);
122 struct draw_context
*draw
= sp
->draw
;
125 sp
->reduced_api_prim
= reduced_prim
[mode
];
128 softpipe_update_derived( sp
);
130 softpipe_map_surfaces(sp
);
131 softpipe_map_constant_buffers(sp
);
136 for (i
= 0; i
< sp
->num_vertex_buffers
; i
++) {
138 = pipe_buffer_map(pipe
->screen
,
139 sp
->vertex_buffer
[i
].buffer
,
140 PIPE_BUFFER_USAGE_CPU_READ
);
141 draw_set_mapped_vertex_buffer(draw
, i
, buf
);
143 /* Map index buffer, if present */
146 = pipe_buffer_map(pipe
->screen
, indexBuffer
,
147 PIPE_BUFFER_USAGE_CPU_READ
);
148 draw_set_mapped_element_buffer_range(draw
, indexSize
,
154 /* no index/element buffer */
155 draw_set_mapped_element_buffer_range(draw
, 0, start
, start
+ count
- 1, NULL
);
160 draw_arrays(draw
, mode
, start
, count
);
163 * unmap vertex/index buffers - will cause draw module to flush
165 for (i
= 0; i
< sp
->num_vertex_buffers
; i
++) {
166 draw_set_mapped_vertex_buffer(draw
, i
, NULL
);
167 pipe_buffer_unmap(pipe
->screen
, sp
->vertex_buffer
[i
].buffer
);
170 draw_set_mapped_element_buffer(draw
, 0, NULL
);
171 pipe_buffer_unmap(pipe
->screen
, indexBuffer
);
175 /* Note: leave drawing surfaces mapped */
176 softpipe_unmap_constant_buffers(sp
);
182 softpipe_draw_elements(struct pipe_context
*pipe
,
183 struct pipe_buffer
*indexBuffer
,
185 unsigned mode
, unsigned start
, unsigned count
)
187 return softpipe_draw_range_elements( pipe
, indexBuffer
,
190 mode
, start
, count
);
196 softpipe_set_edgeflags(struct pipe_context
*pipe
, const unsigned *edgeflags
)
198 struct softpipe_context
*sp
= softpipe_context(pipe
);
199 draw_set_edgeflags(sp
->draw
, edgeflags
);