1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/**********************************************************
* Copyright 2008-2009 VMware, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
**********************************************************/
#include "util/u_helpers.h"
#include "util/u_inlines.h"
#include "util/u_prim.h"
#include "util/u_prim_restart.h"
#include "svga_context.h"
#include "svga_draw.h"
#include "svga_shader.h"
#include "svga_surface.h"
#include "svga_swtnl.h"
#include "svga_debug.h"
#include "svga_resource_buffer.h"
/* Returns TRUE if we are currently using flat shading.
*/
static boolean
is_using_flat_shading(const struct svga_context *svga)
{
return
svga->state.hw_draw.fs ? svga->state.hw_draw.fs->uses_flat_interp : FALSE;
}
static enum pipe_error
retry_draw_range_elements(struct svga_context *svga,
const struct pipe_draw_info *info,
unsigned count)
{
enum pipe_error ret;
SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_DRAWELEMENTS);
ret = svga_hwtnl_draw_range_elements(svga->hwtnl, info, count);
if (ret != PIPE_OK) {
svga_context_flush(svga, NULL);
ret = svga_hwtnl_draw_range_elements(svga->hwtnl, info, count);
}
assert (ret == PIPE_OK);
SVGA_STATS_TIME_POP(svga_sws(svga));
return ret;
}
static enum pipe_error
retry_draw_arrays(struct svga_context *svga,
enum pipe_prim_type prim, unsigned start, unsigned count,
unsigned start_instance, unsigned instance_count)
{
enum pipe_error ret;
SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_DRAWARRAYS);
for (unsigned try = 0; try < 2; try++) {
ret = svga_hwtnl_draw_arrays(svga->hwtnl, prim, start, count,
start_instance, instance_count);
if (ret == PIPE_OK)
break;
svga_context_flush(svga, NULL);
}
SVGA_STATS_TIME_POP(svga_sws(svga));
return ret;
}
/**
* Determine if we need to implement primitive restart with a fallback
* path which breaks the original primitive into sub-primitive at the
* restart indexes.
*/
static boolean
need_fallback_prim_restart(const struct svga_context *svga,
const struct pipe_draw_info *info)
{
if (info->primitive_restart && info->index_size) {
if (!svga_have_vgpu10(svga))
return TRUE;
else if (!svga->state.sw.need_swtnl) {
if (info->index_size == 1)
return TRUE; /* no device support for 1-byte indexes */
else if (info->index_size == 2)
return info->restart_index != 0xffff;
else
return info->restart_index != 0xffffffff;
}
}
return FALSE;
}
static void
svga_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
{
struct svga_context *svga = svga_context(pipe);
enum pipe_prim_type reduced_prim = u_reduced_prim(info->mode);
unsigned count = info->count;
enum pipe_error ret = 0;
boolean needed_swtnl;
SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_DRAWVBO);
svga->hud.num_draw_calls++; /* for SVGA_QUERY_NUM_DRAW_CALLS */
if (u_reduced_prim(info->mode) == PIPE_PRIM_TRIANGLES &&
svga->curr.rast->templ.cull_face == PIPE_FACE_FRONT_AND_BACK)
goto done;
/*
* Mark currently bound target surfaces as dirty
* doesn't really matter if it is done before drawing.
*
* TODO If we ever normaly return something other then
* true we should not mark it as dirty then.
*/
svga_mark_surfaces_dirty(svga_context(pipe));
if (svga->curr.reduced_prim != reduced_prim) {
svga->curr.reduced_prim = reduced_prim;
svga->dirty |= SVGA_NEW_REDUCED_PRIMITIVE;
}
if (need_fallback_prim_restart(svga, info)) {
enum pipe_error r;
r = util_draw_vbo_without_prim_restart(pipe, info);
assert(r == PIPE_OK);
(void) r;
goto done;
}
if (!u_trim_pipe_prim(info->mode, &count))
goto done;
needed_swtnl = svga->state.sw.need_swtnl;
svga_update_state_retry(svga, SVGA_STATE_NEED_SWTNL);
if (svga->state.sw.need_swtnl) {
svga->hud.num_fallbacks++; /* for SVGA_QUERY_NUM_FALLBACKS */
if (!needed_swtnl) {
/*
* We're switching from HW to SW TNL. SW TNL will require mapping all
* currently bound vertex buffers, some of which may already be
* referenced in the current command buffer as result of previous HW
* TNL. So flush now, to prevent the context to flush while a referred
* vertex buffer is mapped.
*/
svga_context_flush(svga, NULL);
}
/* Avoid leaking the previous hwtnl bias to swtnl */
svga_hwtnl_set_index_bias(svga->hwtnl, 0);
ret = svga_swtnl_draw_vbo(svga, info);
}
else {
if (!svga_update_state_retry(svga, SVGA_STATE_HW_DRAW)) {
static const char *msg = "State update failed, skipping draw call";
debug_printf("%s\n", msg);
pipe_debug_message(&svga->debug.callback, INFO, "%s", msg);
goto done;
}
svga_hwtnl_set_fillmode(svga->hwtnl, svga->curr.rast->hw_fillmode);
/** determine if flatshade is to be used after svga_update_state()
* in case the fragment shader is changed.
*/
svga_hwtnl_set_flatshade(svga->hwtnl,
svga->curr.rast->templ.flatshade ||
is_using_flat_shading(svga),
svga->curr.rast->templ.flatshade_first);
if (info->index_size) {
ret = retry_draw_range_elements(svga, info, count);
}
else {
ret = retry_draw_arrays(svga, info->mode, info->start, count,
info->start_instance, info->instance_count);
}
}
/* XXX: Silence warnings, do something sensible here? */
(void)ret;
if (SVGA_DEBUG & DEBUG_FLUSH) {
svga_hwtnl_flush_retry(svga);
svga_context_flush(svga, NULL);
}
done:
SVGA_STATS_TIME_POP(svga_sws(svga));
}
void
svga_init_draw_functions(struct svga_context *svga)
{
svga->pipe.draw_vbo = svga_draw_vbo;
}
|
