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