Merge branch 'master' into pipe-video
[mesa.git] / src / gallium / drivers / svga / svga_pipe_draw.c
1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 **********************************************************/
25
26 #include "svga_cmd.h"
27
28 #include "util/u_inlines.h"
29 #include "util/u_prim.h"
30 #include "util/u_time.h"
31 #include "indices/u_indices.h"
32
33 #include "svga_hw_reg.h"
34 #include "svga_context.h"
35 #include "svga_screen.h"
36 #include "svga_draw.h"
37 #include "svga_state.h"
38 #include "svga_swtnl.h"
39 #include "svga_debug.h"
40
41
42
43 static enum pipe_error
44 retry_draw_range_elements( struct svga_context *svga,
45 struct pipe_resource *index_buffer,
46 unsigned index_size,
47 int index_bias,
48 unsigned min_index,
49 unsigned max_index,
50 unsigned prim,
51 unsigned start,
52 unsigned count,
53 boolean do_retry )
54 {
55 enum pipe_error ret = 0;
56
57 svga_hwtnl_set_unfilled( svga->hwtnl,
58 svga->curr.rast->hw_unfilled );
59
60 svga_hwtnl_set_flatshade( svga->hwtnl,
61 svga->curr.rast->templ.flatshade,
62 svga->curr.rast->templ.flatshade_first );
63
64
65 ret = svga_update_state( svga, SVGA_STATE_HW_DRAW );
66 if (ret)
67 goto retry;
68
69 ret = svga_hwtnl_draw_range_elements( svga->hwtnl,
70 index_buffer, index_size, index_bias,
71 min_index, max_index,
72 prim, start, count );
73 if (ret)
74 goto retry;
75
76 if (svga->curr.any_user_vertex_buffers) {
77 ret = svga_hwtnl_flush( svga->hwtnl );
78 if (ret)
79 goto retry;
80 }
81
82 return PIPE_OK;
83
84 retry:
85 svga_context_flush( svga, NULL );
86
87 if (do_retry)
88 {
89 return retry_draw_range_elements( svga,
90 index_buffer, index_size, index_bias,
91 min_index, max_index,
92 prim, start, count,
93 FALSE );
94 }
95
96 return ret;
97 }
98
99
100 static enum pipe_error
101 retry_draw_arrays( struct svga_context *svga,
102 unsigned prim,
103 unsigned start,
104 unsigned count,
105 boolean do_retry )
106 {
107 enum pipe_error ret;
108
109 svga_hwtnl_set_unfilled( svga->hwtnl,
110 svga->curr.rast->hw_unfilled );
111
112 svga_hwtnl_set_flatshade( svga->hwtnl,
113 svga->curr.rast->templ.flatshade,
114 svga->curr.rast->templ.flatshade_first );
115
116 ret = svga_update_state( svga, SVGA_STATE_HW_DRAW );
117 if (ret)
118 goto retry;
119
120 ret = svga_hwtnl_draw_arrays( svga->hwtnl, prim,
121 start, count );
122 if (ret)
123 goto retry;
124
125 if (svga->curr.any_user_vertex_buffers) {
126 ret = svga_hwtnl_flush( svga->hwtnl );
127 if (ret)
128 goto retry;
129 }
130
131 return 0;
132
133 retry:
134 if (ret == PIPE_ERROR_OUT_OF_MEMORY && do_retry)
135 {
136 svga_context_flush( svga, NULL );
137
138 return retry_draw_arrays( svga,
139 prim,
140 start,
141 count,
142 FALSE );
143 }
144
145 return ret;
146 }
147
148
149 static void
150 svga_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
151 {
152 struct svga_context *svga = svga_context( pipe );
153 unsigned reduced_prim = u_reduced_prim( info->mode );
154 unsigned count = info->count;
155 enum pipe_error ret = 0;
156
157 if (!u_trim_pipe_prim( info->mode, &count ))
158 return;
159
160 /*
161 * Mark currently bound target surfaces as dirty
162 * doesn't really matter if it is done before drawing.
163 *
164 * TODO If we ever normaly return something other then
165 * true we should not mark it as dirty then.
166 */
167 svga_mark_surfaces_dirty(svga_context(pipe));
168
169 if (svga->curr.reduced_prim != reduced_prim) {
170 svga->curr.reduced_prim = reduced_prim;
171 svga->dirty |= SVGA_NEW_REDUCED_PRIMITIVE;
172 }
173
174 svga_update_state_retry( svga, SVGA_STATE_NEED_SWTNL );
175
176 #ifdef DEBUG
177 if (svga->curr.vs->base.id == svga->debug.disable_shader ||
178 svga->curr.fs->base.id == svga->debug.disable_shader)
179 return;
180 #endif
181
182 if (svga->state.sw.need_swtnl) {
183 ret = svga_swtnl_draw_vbo( svga, info );
184 }
185 else {
186 if (info->indexed && svga->curr.ib.buffer) {
187 unsigned offset;
188
189 assert(svga->curr.ib.offset % svga->curr.ib.index_size == 0);
190 offset = svga->curr.ib.offset / svga->curr.ib.index_size;
191
192 ret = retry_draw_range_elements( svga,
193 svga->curr.ib.buffer,
194 svga->curr.ib.index_size,
195 info->index_bias,
196 info->min_index,
197 info->max_index,
198 info->mode,
199 info->start + offset,
200 info->count,
201 TRUE );
202 }
203 else {
204 ret = retry_draw_arrays( svga,
205 info->mode,
206 info->start,
207 info->count,
208 TRUE );
209 }
210 }
211
212 if (SVGA_DEBUG & DEBUG_FLUSH) {
213 svga_hwtnl_flush_retry( svga );
214 svga_context_flush(svga, NULL);
215 }
216 }
217
218
219 void svga_init_draw_functions( struct svga_context *svga )
220 {
221 svga->pipe.draw_vbo = svga_draw_vbo;
222 }