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_context.h"
41 #include "draw/draw_context.h"
46 * Draw vertex arrays, with optional indexing, optional instancing.
47 * All the other drawing functions are implemented in terms of this function.
48 * Basically, map the vertex buffers (and drawing surfaces), then hand off
49 * the drawing to the 'draw' module.
52 llvmpipe_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
54 struct llvmpipe_context *lp = llvmpipe_context(pipe);
55 struct draw_context *draw = lp->draw;
56 void *mapped_indices = NULL;
60 llvmpipe_update_derived( lp );
65 for (i = 0; i < lp->num_vertex_buffers; i++) {
66 void *buf = llvmpipe_resource_data(lp->vertex_buffer[i].buffer);
67 draw_set_mapped_vertex_buffer(draw, i, buf);
70 /* Map index buffer, if present */
71 if (info->indexed && lp->index_buffer.buffer)
72 mapped_indices = llvmpipe_resource_data(lp->index_buffer.buffer);
74 draw_set_mapped_index_buffer(draw, mapped_indices);
76 llvmpipe_prepare_vertex_sampling(lp,
77 lp->num_vertex_sampler_views,
78 lp->vertex_sampler_views);
84 * unmap vertex/index buffers
86 for (i = 0; i < lp->num_vertex_buffers; i++) {
87 draw_set_mapped_vertex_buffer(draw, i, NULL);
90 draw_set_mapped_index_buffer(draw, NULL);
92 llvmpipe_cleanup_vertex_sampling(lp);
95 * TODO: Flush only when a user vertex/index buffer is present
96 * (or even better, modify draw module to do this
97 * internally when this condition is seen?)
104 llvmpipe_init_draw_funcs(struct llvmpipe_context *llvmpipe)
106 llvmpipe->pipe.draw_vbo = llvmpipe_draw_vbo;