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 "util/u_inlines.h"
27 #include "pipe/p_state.h"
28 #include "svga_context.h"
29 #include "svga_shader.h"
30 #include "svga_state.h"
31 #include "svga_debug.h"
32 #include "svga_hw_reg.h"
33
34
35 static enum pipe_error
update_need_swvfetch(struct svga_context * svga,unsigned dirty)36 update_need_swvfetch(struct svga_context *svga, unsigned dirty)
37 {
38 if (!svga->curr.velems) {
39 /* No vertex elements bound. */
40 return PIPE_OK;
41 }
42
43 if (svga->state.sw.need_swvfetch != svga->curr.velems->need_swvfetch) {
44 svga->state.sw.need_swvfetch = svga->curr.velems->need_swvfetch;
45 svga->dirty |= SVGA_NEW_NEED_SWVFETCH;
46 }
47
48 return PIPE_OK;
49 }
50
51 struct svga_tracked_state svga_update_need_swvfetch =
52 {
53 "update need_swvfetch",
54 ( SVGA_NEW_VELEMENT ),
55 update_need_swvfetch
56 };
57
58
59
60 static enum pipe_error
update_need_pipeline(struct svga_context * svga,unsigned dirty)61 update_need_pipeline(struct svga_context *svga, unsigned dirty)
62 {
63 boolean need_pipeline = FALSE;
64 struct svga_vertex_shader *vs = svga->curr.vs;
65 const char *reason = "";
66
67 /* SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
68 */
69 if (svga->curr.rast->need_pipeline & (1 << svga->curr.reduced_prim)) {
70 SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline (0x%x) & prim (0x%x)\n",
71 __FUNCTION__,
72 svga->curr.rast->need_pipeline,
73 (1 << svga->curr.reduced_prim) );
74 SVGA_DBG(DEBUG_SWTNL, "%s: rast need_pipeline tris (%s), lines (%s), points (%s)\n",
75 __FUNCTION__,
76 svga->curr.rast->need_pipeline_tris_str,
77 svga->curr.rast->need_pipeline_lines_str,
78 svga->curr.rast->need_pipeline_points_str);
79 need_pipeline = TRUE;
80
81 switch (svga->curr.reduced_prim) {
82 case PIPE_PRIM_POINTS:
83 reason = svga->curr.rast->need_pipeline_points_str;
84 break;
85 case PIPE_PRIM_LINES:
86 reason = svga->curr.rast->need_pipeline_lines_str;
87 break;
88 case PIPE_PRIM_TRIANGLES:
89 reason = svga->curr.rast->need_pipeline_tris_str;
90 break;
91 default:
92 assert(!"Unexpected reduced prim type");
93 }
94 }
95
96 /* EDGEFLAGS
97 */
98 if (vs && vs->base.info.writes_edgeflag) {
99 SVGA_DBG(DEBUG_SWTNL, "%s: edgeflags\n", __FUNCTION__);
100 need_pipeline = TRUE;
101 reason = "edge flags";
102 }
103
104 /* SVGA_NEW_FS, SVGA_NEW_RAST, SVGA_NEW_REDUCED_PRIMITIVE
105 */
106 if (svga->curr.reduced_prim == PIPE_PRIM_POINTS) {
107 unsigned sprite_coord_gen = svga->curr.rast->templ.sprite_coord_enable;
108 unsigned generic_inputs =
109 svga->curr.fs ? svga->curr.fs->generic_inputs : 0;
110
111 if (!svga_have_vgpu10(svga) && sprite_coord_gen &&
112 (generic_inputs & ~sprite_coord_gen)) {
113 /* The fragment shader is using some generic inputs that are
114 * not being replaced by auto-generated point/sprite coords (and
115 * auto sprite coord generation is turned on).
116 * The SVGA3D interface does not support that: if we enable
117 * SVGA3D_RS_POINTSPRITEENABLE it gets enabled for _all_
118 * texture coordinate sets.
119 * To solve this, we have to use the draw-module's wide/sprite
120 * point stage.
121 */
122 need_pipeline = TRUE;
123 reason = "point sprite coordinate generation";
124 }
125 }
126
127 if (need_pipeline != svga->state.sw.need_pipeline) {
128 svga->state.sw.need_pipeline = need_pipeline;
129 svga->dirty |= SVGA_NEW_NEED_PIPELINE;
130 }
131
132 /* DEBUG */
133 if (0 && svga->state.sw.need_pipeline)
134 debug_printf("sw.need_pipeline = %d\n", svga->state.sw.need_pipeline);
135
136 if (svga->state.sw.need_pipeline) {
137 assert(reason);
138 pipe_debug_message(&svga->debug.callback, FALLBACK,
139 "Using semi-fallback for %s", reason);
140 }
141
142 return PIPE_OK;
143 }
144
145
146 struct svga_tracked_state svga_update_need_pipeline =
147 {
148 "need pipeline",
149 (SVGA_NEW_RAST |
150 SVGA_NEW_FS |
151 SVGA_NEW_VS |
152 SVGA_NEW_REDUCED_PRIMITIVE),
153 update_need_pipeline
154 };
155
156
157 static enum pipe_error
update_need_swtnl(struct svga_context * svga,unsigned dirty)158 update_need_swtnl(struct svga_context *svga, unsigned dirty)
159 {
160 boolean need_swtnl;
161
162 if (svga->debug.no_swtnl) {
163 svga->state.sw.need_swvfetch = FALSE;
164 svga->state.sw.need_pipeline = FALSE;
165 }
166
167 need_swtnl = (svga->state.sw.need_swvfetch ||
168 svga->state.sw.need_pipeline);
169
170 if (svga->debug.force_swtnl) {
171 need_swtnl = TRUE;
172 }
173
174 /*
175 * Some state changes the draw module does makes us believe we
176 * we don't need swtnl. This causes the vdecl code to pickup
177 * the wrong buffers and vertex formats. Try trivial/line-wide.
178 */
179 if (svga->state.sw.in_swtnl_draw)
180 need_swtnl = TRUE;
181
182 if (need_swtnl != svga->state.sw.need_swtnl) {
183 SVGA_DBG(DEBUG_SWTNL|DEBUG_PERF,
184 "%s: need_swvfetch %s, need_pipeline %s\n",
185 __FUNCTION__,
186 svga->state.sw.need_swvfetch ? "true" : "false",
187 svga->state.sw.need_pipeline ? "true" : "false");
188
189 svga->state.sw.need_swtnl = need_swtnl;
190 svga->dirty |= SVGA_NEW_NEED_SWTNL;
191 svga->swtnl.new_vdecl = TRUE;
192 }
193
194 return PIPE_OK;
195 }
196
197
198 struct svga_tracked_state svga_update_need_swtnl =
199 {
200 "need swtnl",
201 (SVGA_NEW_NEED_PIPELINE |
202 SVGA_NEW_NEED_SWVFETCH),
203 update_need_swtnl
204 };
205