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/internal/p_winsys_screen.h"
37 #include "pipe/p_inlines.h"
38 #include "util/u_prim.h"
40 #include "sp_context.h"
44 #include "draw/draw_context.h"
49 softpipe_map_constant_buffers(struct softpipe_context
*sp
)
51 struct pipe_winsys
*ws
= sp
->pipe
.winsys
;
52 uint i
, vssize
, gssize
;
54 for (i
= 0; i
< PIPE_SHADER_TYPES
; i
++) {
55 if (sp
->constants
[i
].buffer
&& sp
->constants
[i
].buffer
->size
)
56 sp
->mapped_constants
[i
] = ws
->buffer_map(ws
, sp
->constants
[i
].buffer
,
57 PIPE_BUFFER_USAGE_CPU_READ
);
60 if (sp
->constants
[PIPE_SHADER_VERTEX
].buffer
)
61 vssize
= sp
->constants
[PIPE_SHADER_VERTEX
].buffer
->size
;
65 if (sp
->constants
[PIPE_SHADER_GEOMETRY
].buffer
)
66 gssize
= sp
->constants
[PIPE_SHADER_GEOMETRY
].buffer
->size
;
70 draw_set_mapped_constant_buffer(sp
->draw
, PIPE_SHADER_VERTEX
,
71 sp
->mapped_constants
[PIPE_SHADER_VERTEX
],
73 draw_set_mapped_constant_buffer(sp
->draw
, PIPE_SHADER_GEOMETRY
,
74 sp
->mapped_constants
[PIPE_SHADER_GEOMETRY
],
80 softpipe_unmap_constant_buffers(struct softpipe_context
*sp
)
82 struct pipe_winsys
*ws
= sp
->pipe
.winsys
;
85 /* really need to flush all prims since the vert/frag shaders const buffers
90 draw_set_mapped_constant_buffer(sp
->draw
, PIPE_SHADER_VERTEX
, NULL
, 0);
91 draw_set_mapped_constant_buffer(sp
->draw
, PIPE_SHADER_GEOMETRY
, NULL
, 0);
93 for (i
= 0; i
< PIPE_SHADER_TYPES
; i
++) {
94 if (sp
->constants
[i
].buffer
&& sp
->constants
[i
].buffer
->size
)
95 ws
->buffer_unmap(ws
, sp
->constants
[i
].buffer
);
96 sp
->mapped_constants
[i
] = NULL
;
102 softpipe_draw_arrays(struct pipe_context
*pipe
, unsigned mode
,
103 unsigned start
, unsigned count
)
105 softpipe_draw_elements(pipe
, NULL
, 0, mode
, start
, count
);
110 * Draw vertex arrays, with optional indexing.
111 * Basically, map the vertex buffers (and drawing surfaces), then hand off
112 * the drawing to the 'draw' module.
115 softpipe_draw_range_elements(struct pipe_context
*pipe
,
116 struct pipe_buffer
*indexBuffer
,
120 unsigned mode
, unsigned start
, unsigned count
)
122 struct softpipe_context
*sp
= softpipe_context(pipe
);
123 struct draw_context
*draw
= sp
->draw
;
126 if (!softpipe_check_render_cond(sp
))
129 sp
->reduced_api_prim
= u_reduced_prim(mode
);
132 softpipe_update_derived( sp
);
134 softpipe_map_transfers(sp
);
135 softpipe_map_constant_buffers(sp
);
140 for (i
= 0; i
< sp
->num_vertex_buffers
; i
++) {
142 = pipe_buffer_map(pipe
->screen
,
143 sp
->vertex_buffer
[i
].buffer
,
144 PIPE_BUFFER_USAGE_CPU_READ
);
145 draw_set_mapped_vertex_buffer(draw
, i
, buf
);
148 /* Map index buffer, if present */
151 = pipe_buffer_map(pipe
->screen
, indexBuffer
,
152 PIPE_BUFFER_USAGE_CPU_READ
);
153 draw_set_mapped_element_buffer_range(draw
, indexSize
,
159 /* no index/element buffer */
160 draw_set_mapped_element_buffer_range(draw
, 0, start
,
161 start
+ count
- 1, NULL
);
165 draw_arrays(draw
, mode
, start
, count
);
168 * unmap vertex/index buffers - will cause draw module to flush
170 for (i
= 0; i
< sp
->num_vertex_buffers
; i
++) {
171 draw_set_mapped_vertex_buffer(draw
, i
, NULL
);
172 pipe_buffer_unmap(pipe
->screen
, sp
->vertex_buffer
[i
].buffer
);
175 draw_set_mapped_element_buffer(draw
, 0, NULL
);
176 pipe_buffer_unmap(pipe
->screen
, indexBuffer
);
180 /* Note: leave drawing surfaces mapped */
181 softpipe_unmap_constant_buffers(sp
);
183 sp
->dirty_render_cache
= TRUE
;
188 softpipe_draw_elements(struct pipe_context
*pipe
,
189 struct pipe_buffer
*indexBuffer
,
191 unsigned mode
, unsigned start
, unsigned count
)
193 softpipe_draw_range_elements( pipe
, indexBuffer
,
196 mode
, start
, count
);