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
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
|
/**********************************************************
* 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_inlines.h"
#include "util/u_upload_mgr.h"
#include "indices/u_indices.h"
#include "svga_cmd.h"
#include "svga_draw.h"
#include "svga_draw_private.h"
#include "svga_resource_buffer.h"
#include "svga_winsys.h"
#include "svga_context.h"
#include "svga_hw_reg.h"
static enum pipe_error
translate_indices( struct svga_hwtnl *hwtnl,
struct pipe_resource *src,
unsigned offset,
unsigned nr,
unsigned index_size,
u_translate_func translate,
struct pipe_resource **out_buf )
{
struct pipe_context *pipe = &hwtnl->svga->pipe;
struct pipe_transfer *src_transfer = NULL;
struct pipe_transfer *dst_transfer = NULL;
unsigned size = index_size * nr;
const void *src_map = NULL;
struct pipe_resource *dst = NULL;
void *dst_map = NULL;
dst = pipe_buffer_create( pipe->screen,
PIPE_BIND_INDEX_BUFFER,
PIPE_USAGE_STATIC,
size );
if (dst == NULL)
goto fail;
src_map = pipe_buffer_map( pipe, src, PIPE_TRANSFER_READ, &src_transfer );
if (src_map == NULL)
goto fail;
dst_map = pipe_buffer_map( pipe, dst, PIPE_TRANSFER_WRITE, &dst_transfer );
if (dst_map == NULL)
goto fail;
translate( (const char *)src_map + offset,
nr,
dst_map );
pipe_buffer_unmap( pipe, src_transfer );
pipe_buffer_unmap( pipe, dst_transfer );
*out_buf = dst;
return PIPE_OK;
fail:
if (src_map)
pipe_buffer_unmap( pipe, src_transfer );
if (dst_map)
pipe_buffer_unmap( pipe, dst_transfer );
if (dst)
pipe->screen->resource_destroy( pipe->screen, dst );
return PIPE_ERROR_OUT_OF_MEMORY;
}
enum pipe_error
svga_hwtnl_simple_draw_range_elements( struct svga_hwtnl *hwtnl,
struct pipe_resource *index_buffer,
unsigned index_size,
int index_bias,
unsigned min_index,
unsigned max_index,
unsigned prim,
unsigned start,
unsigned count )
{
struct pipe_resource *upload_buffer = NULL;
SVGA3dPrimitiveRange range;
unsigned hw_prim;
unsigned hw_count;
unsigned index_offset = start * index_size;
int ret = PIPE_OK;
hw_prim = svga_translate_prim(prim, count, &hw_count);
if (hw_count == 0)
goto done;
if (index_buffer &&
svga_buffer_is_user_buffer(index_buffer))
{
boolean flushed;
assert( index_buffer->width0 >= index_offset + count * index_size );
ret = u_upload_buffer( hwtnl->upload_ib,
0,
index_offset,
count * index_size,
index_buffer,
&index_offset,
&upload_buffer,
&flushed );
if (ret)
goto done;
/* Don't need to worry about refcounting index_buffer as this is
* just a stack variable without a counted reference of its own.
* The caller holds the reference.
*/
index_buffer = upload_buffer;
}
range.primType = hw_prim;
range.primitiveCount = hw_count;
range.indexArray.offset = index_offset;
range.indexArray.stride = index_size;
range.indexWidth = index_size;
range.indexBias = index_bias;
ret = svga_hwtnl_prim( hwtnl, &range, min_index, max_index, index_buffer );
if (ret)
goto done;
done:
if (upload_buffer)
pipe_resource_reference( &upload_buffer, NULL );
return ret;
}
enum pipe_error
svga_hwtnl_draw_range_elements( struct svga_hwtnl *hwtnl,
struct pipe_resource *index_buffer,
unsigned index_size,
int index_bias,
unsigned min_index,
unsigned max_index,
unsigned prim, unsigned start, unsigned count)
{
unsigned gen_prim, gen_size, gen_nr, gen_type;
u_translate_func gen_func;
enum pipe_error ret = PIPE_OK;
if (hwtnl->api_fillmode != PIPE_POLYGON_MODE_FILL &&
prim >= PIPE_PRIM_TRIANGLES)
{
gen_type = u_unfilled_translator( prim,
index_size,
count,
hwtnl->api_fillmode,
&gen_prim,
&gen_size,
&gen_nr,
&gen_func );
}
else
{
gen_type = u_index_translator( svga_hw_prims,
prim,
index_size,
count,
hwtnl->api_pv,
hwtnl->hw_pv,
&gen_prim,
&gen_size,
&gen_nr,
&gen_func );
}
if (gen_type == U_TRANSLATE_MEMCPY) {
/* No need for translation, just pass through to hardware:
*/
return svga_hwtnl_simple_draw_range_elements( hwtnl, index_buffer,
index_size,
index_bias,
min_index,
max_index,
gen_prim, start, count );
}
else {
struct pipe_resource *gen_buf = NULL;
/* Need to allocate a new index buffer and run the translate
* func to populate it. Could potentially cache this translated
* index buffer with the original to avoid future
* re-translations. Not much point if we're just accelerating
* GL though, as index buffers are typically used only once
* there.
*/
ret = translate_indices( hwtnl,
index_buffer,
start * index_size,
gen_nr,
gen_size,
gen_func,
&gen_buf );
if (ret)
goto done;
ret = svga_hwtnl_simple_draw_range_elements( hwtnl,
gen_buf,
gen_size,
index_bias,
min_index,
max_index,
gen_prim,
0,
gen_nr );
if (ret)
goto done;
done:
if (gen_buf)
pipe_resource_reference( &gen_buf, NULL );
return ret;
}
}
|
