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_inlines.h"
37 #include "util/u_prim.h"
39 #include "sp_context.h"
42 #include "sp_texture.h"
44 #include "draw/draw_context.h"
51 softpipe_draw_stream_output(struct pipe_context
*pipe
, unsigned mode
)
53 struct softpipe_context
*sp
= softpipe_context(pipe
);
54 struct draw_context
*draw
= sp
->draw
;
55 const unsigned start
= 0;
56 const unsigned count
= sp
->so_target
.so_count
[0];
57 void *buf
= sp
->so_target
.buffer
[0]->data
;
58 int offset
= sp
->so_target
.offset
[0];
60 if (!softpipe_check_render_cond(sp
) ||
61 sp
->so_target
.num_buffers
!= 1)
64 sp
->reduced_api_prim
= u_reduced_prim(mode
);
67 softpipe_update_derived(sp
);
70 softpipe_map_transfers(sp
);
73 if (offset
< 0) /* we were appending so start from beginning */
75 buf
= (void*)((int32_t*)buf
+ offset
);
76 draw_set_mapped_vertex_buffer(draw
, 0, buf
);
78 draw_set_mapped_element_buffer_range(draw
,
85 draw_arrays_instanced(draw
, mode
, start
, count
, 0, 1);
87 /* unmap vertex/index buffers - will cause draw module to flush */
88 draw_set_mapped_vertex_buffer(draw
, 0, NULL
);
91 * TODO: Flush only when a user vertex/index buffer is present
92 * (or even better, modify draw module to do this
93 * internally when this condition is seen?)
97 /* Note: leave drawing surfaces mapped */
98 sp
->dirty_render_cache
= TRUE
;
103 * This function handles drawing indexed and non-indexed prims,
104 * instanced and non-instanced drawing, with or without min/max element
106 * All the other drawing functions are expressed in terms of this
109 * For non-indexed prims, indexBuffer should be NULL.
110 * For non-instanced drawing, instanceCount should be 1.
111 * When the min/max element indexes aren't known, minIndex should be 0
112 * and maxIndex should be ~0.
115 softpipe_draw_vbo(struct pipe_context
*pipe
,
116 const struct pipe_draw_info
*info
)
118 struct softpipe_context
*sp
= softpipe_context(pipe
);
119 struct draw_context
*draw
= sp
->draw
;
120 void *mapped_indices
= NULL
;
123 if (!softpipe_check_render_cond(sp
))
126 sp
->reduced_api_prim
= u_reduced_prim(info
->mode
);
129 softpipe_update_derived(sp
);
132 softpipe_map_transfers(sp
);
134 /* Map vertex buffers */
135 for (i
= 0; i
< sp
->num_vertex_buffers
; i
++) {
136 void *buf
= softpipe_resource(sp
->vertex_buffer
[i
].buffer
)->data
;
137 draw_set_mapped_vertex_buffer(draw
, i
, buf
);
140 /* Map index buffer, if present */
141 if (info
->indexed
&& sp
->index_buffer
.buffer
) {
142 char *indices
= (char *) softpipe_resource(sp
->index_buffer
.buffer
)->data
;
143 mapped_indices
= (void *) (indices
+ sp
->index_buffer
.offset
);
146 draw_set_mapped_element_buffer_range(draw
, (mapped_indices
) ?
147 sp
->index_buffer
.index_size
: 0,
154 draw_arrays_instanced(draw
, info
->mode
, info
->start
, info
->count
,
155 info
->start_instance
, info
->instance_count
);
157 /* unmap vertex/index buffers - will cause draw module to flush */
158 for (i
= 0; i
< sp
->num_vertex_buffers
; i
++) {
159 draw_set_mapped_vertex_buffer(draw
, i
, NULL
);
161 if (mapped_indices
) {
162 draw_set_mapped_element_buffer(draw
, 0, 0, NULL
);
166 * TODO: Flush only when a user vertex/index buffer is present
167 * (or even better, modify draw module to do this
168 * internally when this condition is seen?)
172 /* Note: leave drawing surfaces mapped */
173 sp
->dirty_render_cache
= TRUE
;