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 "draw/draw_context.h"
27 #include "draw/draw_vbuf.h"
28 #include "util/u_inlines.h"
29 #include "pipe/p_state.h"
30
31 #include "svga_context.h"
32 #include "svga_screen.h"
33 #include "svga_swtnl.h"
34 #include "svga_state.h"
35 #include "svga_swtnl_private.h"
36
37
38
39 enum pipe_error
svga_swtnl_draw_vbo(struct svga_context * svga,const struct pipe_draw_info * info,unsigned drawid_offset,const struct pipe_draw_indirect_info * indirect,const struct pipe_draw_start_count_bias * draw_one)40 svga_swtnl_draw_vbo(struct svga_context *svga,
41 const struct pipe_draw_info *info,
42 unsigned drawid_offset,
43 const struct pipe_draw_indirect_info *indirect,
44 const struct pipe_draw_start_count_bias *draw_one)
45 {
46 struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = { 0 };
47 struct pipe_transfer *ib_transfer = NULL;
48 struct pipe_transfer *cb_transfer[SVGA_MAX_CONST_BUFS] = { 0 };
49 struct draw_context *draw = svga->swtnl.draw;
50 ASSERTED unsigned old_num_vertex_buffers;
51 unsigned i;
52 const void *map;
53 boolean retried;
54
55 SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_SWTNLDRAWVBO);
56
57 assert(!svga->dirty);
58 assert(svga->state.sw.need_swtnl);
59 assert(draw);
60
61 /* Make sure that the need_swtnl flag does not go away */
62 svga->state.sw.in_swtnl_draw = TRUE;
63
64 SVGA_RETRY_CHECK(svga, svga_update_state(svga, SVGA_STATE_SWTNL_DRAW), retried);
65 if (retried) {
66 svga->swtnl.new_vbuf = TRUE;
67 }
68
69 /*
70 * Map vertex buffers
71 */
72 for (i = 0; i < svga->curr.num_vertex_buffers; i++) {
73 if (svga->curr.vb[i].buffer.resource) {
74 map = pipe_buffer_map(&svga->pipe,
75 svga->curr.vb[i].buffer.resource,
76 PIPE_MAP_READ |
77 PIPE_MAP_UNSYNCHRONIZED,
78 &vb_transfer[i]);
79
80 draw_set_mapped_vertex_buffer(draw, i, map, ~0);
81 }
82 }
83 old_num_vertex_buffers = svga->curr.num_vertex_buffers;
84
85 /* Map index buffer, if present */
86 map = NULL;
87 if (info->index_size) {
88 if (info->has_user_indices) {
89 map = (ubyte *) info->index.user;
90 } else {
91 map = pipe_buffer_map(&svga->pipe, info->index.resource,
92 PIPE_MAP_READ |
93 PIPE_MAP_UNSYNCHRONIZED, &ib_transfer);
94 }
95 draw_set_indexes(draw,
96 (const ubyte *) map,
97 info->index_size, ~0);
98 }
99
100 /* Map constant buffers */
101 for (i = 0; i < ARRAY_SIZE(svga->curr.constbufs[PIPE_SHADER_VERTEX]); ++i) {
102 if (svga->curr.constbufs[PIPE_SHADER_VERTEX][i].buffer == NULL) {
103 continue;
104 }
105
106 map = pipe_buffer_map(&svga->pipe,
107 svga->curr.constbufs[PIPE_SHADER_VERTEX][i].buffer,
108 PIPE_MAP_READ |
109 PIPE_MAP_UNSYNCHRONIZED,
110 &cb_transfer[i]);
111 assert(map);
112 draw_set_mapped_constant_buffer(
113 draw, PIPE_SHADER_VERTEX, i,
114 map,
115 svga->curr.constbufs[PIPE_SHADER_VERTEX][i].buffer->width0);
116 }
117
118 draw_vbo(draw, info, drawid_offset, indirect, draw_one, 1,
119 svga->patch_vertices);
120
121 draw_flush(svga->swtnl.draw);
122
123 /* Ensure the draw module didn't touch this */
124 assert(old_num_vertex_buffers == svga->curr.num_vertex_buffers);
125
126 /*
127 * unmap vertex/index buffers
128 */
129 for (i = 0; i < svga->curr.num_vertex_buffers; i++) {
130 if (svga->curr.vb[i].buffer.resource) {
131 pipe_buffer_unmap(&svga->pipe, vb_transfer[i]);
132 draw_set_mapped_vertex_buffer(draw, i, NULL, 0);
133 }
134 }
135
136 if (ib_transfer) {
137 pipe_buffer_unmap(&svga->pipe, ib_transfer);
138 draw_set_indexes(draw, NULL, 0, 0);
139 }
140
141 for (i = 0; i < ARRAY_SIZE(svga->curr.constbufs[PIPE_SHADER_VERTEX]); ++i) {
142 if (svga->curr.constbufs[PIPE_SHADER_VERTEX][i].buffer) {
143 pipe_buffer_unmap(&svga->pipe, cb_transfer[i]);
144 }
145 }
146
147 /* Now safe to remove the need_swtnl flag in any update_state call */
148 svga->state.sw.in_swtnl_draw = FALSE;
149 svga->dirty |= SVGA_NEW_NEED_PIPELINE | SVGA_NEW_NEED_SWVFETCH;
150
151 SVGA_STATS_TIME_POP(svga_sws(svga));
152 return PIPE_OK;
153 }
154
155
156 boolean
svga_init_swtnl(struct svga_context * svga)157 svga_init_swtnl(struct svga_context *svga)
158 {
159 struct svga_screen *screen = svga_screen(svga->pipe.screen);
160
161 svga->swtnl.backend = svga_vbuf_render_create(svga);
162 if (!svga->swtnl.backend)
163 goto fail;
164
165 /*
166 * Create drawing context and plug our rendering stage into it.
167 */
168 svga->swtnl.draw = draw_create(&svga->pipe);
169 if (svga->swtnl.draw == NULL)
170 goto fail;
171
172
173 draw_set_rasterize_stage(svga->swtnl.draw,
174 draw_vbuf_stage(svga->swtnl.draw, svga->swtnl.backend));
175
176 draw_set_render(svga->swtnl.draw, svga->swtnl.backend);
177
178 svga->blitter = util_blitter_create(&svga->pipe);
179 if (!svga->blitter)
180 goto fail;
181
182 /* must be done before installing Draw stages */
183 util_blitter_cache_all_shaders(svga->blitter);
184
185 if (!screen->haveLineSmooth)
186 draw_install_aaline_stage(svga->swtnl.draw, &svga->pipe);
187
188 /* enable/disable line stipple stage depending on device caps */
189 draw_enable_line_stipple(svga->swtnl.draw, !screen->haveLineStipple);
190
191 /* always install AA point stage */
192 draw_install_aapoint_stage(svga->swtnl.draw, &svga->pipe);
193
194 /* Set wide line threshold above device limit (so we'll never really use it)
195 */
196 draw_wide_line_threshold(svga->swtnl.draw,
197 MAX2(screen->maxLineWidth,
198 screen->maxLineWidthAA));
199
200 if (debug_get_bool_option("SVGA_SWTNL_FSE", FALSE))
201 draw_set_driver_clipping(svga->swtnl.draw, TRUE, TRUE, TRUE, FALSE);
202
203 return TRUE;
204
205 fail:
206 if (svga->blitter)
207 util_blitter_destroy(svga->blitter);
208
209 if (svga->swtnl.backend)
210 svga->swtnl.backend->destroy(svga->swtnl.backend);
211
212 if (svga->swtnl.draw)
213 draw_destroy(svga->swtnl.draw);
214
215 return FALSE;
216 }
217
218
219 void
svga_destroy_swtnl(struct svga_context * svga)220 svga_destroy_swtnl(struct svga_context *svga)
221 {
222 draw_destroy(svga->swtnl.draw);
223 }
224