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
|
/**************************************************************************
*
* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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, sub license, 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 (including the
* next paragraph) 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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 "pipe/p_util.h"
#include "draw/draw_context.h"
#include "draw/draw_private.h"
#include "draw/draw_vbuf.h"
#include "draw/draw_vertex.h"
#include "draw/draw_pt.h"
#include "translate/translate.h"
#include "translate/translate_cache.h"
struct pt_fetch {
struct draw_context *draw;
struct translate *translate;
unsigned vertex_size;
boolean need_edgeflags;
struct translate_cache *cache;
};
/* Perform the fetch from API vertex elements & vertex buffers, to a
* contiguous set of float[4] attributes as required for the
* vertex_shader->run_linear() method.
*
* This is used in all cases except pure passthrough
* (draw_pt_fetch_emit.c) which has its own version to translate
* directly to hw vertices.
*
*/
void draw_pt_fetch_prepare( struct pt_fetch *fetch,
unsigned vertex_size )
{
struct draw_context *draw = fetch->draw;
unsigned i, nr = 0;
unsigned dst_offset = 0;
struct translate_key key;
fetch->vertex_size = vertex_size;
/* Always emit/leave space for a vertex header.
*
* It's worth considering whether the vertex headers should contain
* a pointer to the 'data', rather than having it inline.
* Something to look at after we've fully switched over to the pt
* paths.
*/
{
/* Need to set header->vertex_id = 0xffff somehow.
*/
key.element[nr].input_format = PIPE_FORMAT_R32_FLOAT;
key.element[nr].input_buffer = draw->pt.nr_vertex_buffers;
key.element[nr].input_offset = 0;
key.element[nr].output_format = PIPE_FORMAT_R32_FLOAT;
key.element[nr].output_offset = dst_offset;
dst_offset += 1 * sizeof(float);
nr++;
/* Just leave the clip[] array untouched.
*/
dst_offset += 4 * sizeof(float);
}
for (i = 0; i < draw->pt.nr_vertex_elements; i++) {
key.element[nr].input_format = draw->pt.vertex_element[i].src_format;
key.element[nr].input_buffer = draw->pt.vertex_element[i].vertex_buffer_index;
key.element[nr].input_offset = draw->pt.vertex_element[i].src_offset;
key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
key.element[nr].output_offset = dst_offset;
dst_offset += 4 * sizeof(float);
nr++;
}
assert(dst_offset <= vertex_size);
key.nr_elements = nr;
key.output_stride = vertex_size;
if (!fetch->translate ||
translate_key_compare(&fetch->translate->key, &key) != 0)
{
translate_key_sanitize(&key);
fetch->translate = translate_cache_find(fetch->cache, &key);
{
static struct vertex_header vh = { 0, 1, 0, 0xffff };
fetch->translate->set_buffer(fetch->translate,
draw->pt.nr_vertex_buffers,
&vh,
0);
}
}
fetch->need_edgeflags = ((draw->rasterizer->fill_cw != PIPE_POLYGON_MODE_FILL ||
draw->rasterizer->fill_ccw != PIPE_POLYGON_MODE_FILL) &&
draw->pt.user.edgeflag);
}
void draw_pt_fetch_run( struct pt_fetch *fetch,
const unsigned *elts,
unsigned count,
char *verts )
{
struct draw_context *draw = fetch->draw;
struct translate *translate = fetch->translate;
unsigned i;
for (i = 0; i < draw->pt.nr_vertex_buffers; i++) {
translate->set_buffer(translate,
i,
((char *)draw->pt.user.vbuffer[i] +
draw->pt.vertex_buffer[i].buffer_offset),
draw->pt.vertex_buffer[i].pitch );
}
translate->run_elts( translate,
elts,
count,
verts );
/* Edgeflags are hard to fit into a translate program, populate
* them separately if required. In the setup above they are
* defaulted to one, so only need this if there is reason to change
* that default:
*/
if (fetch->need_edgeflags) {
for (i = 0; i < count; i++) {
struct vertex_header *vh = (struct vertex_header *)(verts + i * fetch->vertex_size);
vh->edgeflag = draw_pt_get_edgeflag( draw, elts[i] );
}
}
}
void draw_pt_fetch_run_linear( struct pt_fetch *fetch,
unsigned start,
unsigned count,
char *verts )
{
struct draw_context *draw = fetch->draw;
struct translate *translate = fetch->translate;
unsigned i;
for (i = 0; i < draw->pt.nr_vertex_buffers; i++) {
translate->set_buffer(translate,
i,
((char *)draw->pt.user.vbuffer[i] +
draw->pt.vertex_buffer[i].buffer_offset),
draw->pt.vertex_buffer[i].pitch );
}
translate->run( translate,
start,
count,
verts );
/* Edgeflags are hard to fit into a translate program, populate
* them separately if required. In the setup above they are
* defaulted to one, so only need this if there is reason to change
* that default:
*/
if (fetch->need_edgeflags) {
for (i = 0; i < count; i++) {
struct vertex_header *vh = (struct vertex_header *)(verts + i * fetch->vertex_size);
vh->edgeflag = draw_pt_get_edgeflag( draw, start + i );
}
}
}
struct pt_fetch *draw_pt_fetch_create( struct draw_context *draw )
{
struct pt_fetch *fetch = CALLOC_STRUCT(pt_fetch);
if (!fetch)
return NULL;
fetch->draw = draw;
fetch->cache = translate_cache_create();
if (!fetch->cache) {
FREE(fetch);
return NULL;
}
return fetch;
}
void draw_pt_fetch_destroy( struct pt_fetch *fetch )
{
if (fetch->cache)
translate_cache_destroy(fetch->cache);
FREE(fetch);
}
|
