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
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
|
/**************************************************************************
*
* Copyright 2007 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.
*
**************************************************************************/
/**
* Tiling engine.
*
* Builds per-tile display lists and executes them on calls to
* lp_setup_flush().
*/
#include "lp_setup_context.h"
#include "util/u_math.h"
#include "util/u_memory.h"
void lp_setup_new_cmd_block( struct cmd_block_list *list )
{
struct cmd_block *block = MALLOC_STRUCT(cmd_block);
list->tail->next = block;
list->tail = block;
block->next = NULL;
block->count = 0;
}
void lp_setup_new_data_block( struct data_block_list *list )
{
struct data_block *block = MALLOC_STRUCT(data_block);
list->tail->next = block;
list->tail = block;
block->next = NULL;
block->used = 0;
}
static void reset_context( struct setup_context *setup )
{
unsigned i, j;
/* Free binner command lists:
*/
for (i = 0; i < setup->tiles_x; i++) {
for (j = 0; j < setup->tiles_y; j++) {
struct cmd_block_list *list = &setup->tile[i][j];
struct cmd_block *block;
struct cmd_block *tmp;
for (block = list->head; block != list->tail; block = tmp) {
tmp = block->next;
FREE(block);
}
list->head = list->tail;
}
}
/* Free binned data:
*/
{
struct data_block_list *list = &setup->data;
struct data_block *block, *tmp;
for (block = list->head; block != list->tail; block = tmp) {
tmp = block->next;
FREE(block);
}
list->head = list->tail;
}
/* Reset some state:
*/
setup->clear.flags = 0;
}
/* Add a command to all active bins.
*/
static void bin_everywhere( struct setup_context *setup,
lp_rast_cmd cmd,
const union lp_rast_cmd_arg *arg )
{
unsigned i, j;
for (i = 0; i < setup->tiles_x; i++)
for (j = 0; j < setup->tiles_y; j++)
bin_cmd( &setup->tile[i][j], cmd, arg );
}
static void
rasterize_bins( struct setup_context *setup,
boolean write_depth )
{
struct lp_rasterizer *rast = setup->rast;
struct cmd_block *block;
unsigned i,j,k;
lp_rast_bind_color( rast,
setup->fb.color,
TRUE ); /* WRITE */
lp_rast_bind_depth( rast,
setup->fb.zstencil,
write_depth ); /* WRITE */
for (i = 0; i < setup->tiles_x; i++) {
for (j = 0; j < setup->tiles_y; j++) {
lp_rast_start_tile( rast,
i * TILESIZE,
j * TILESIZE );
for (block = setup->tile[i][j].head; block; block = block->next) {
for (k = 0; k < block->count; k++) {
block->cmd[k]( rast, block->arg[k] );
}
}
lp_rast_end_tile( rast );
}
}
reset_context( setup );
}
static void
begin_binning( struct setup_context *setup )
{
if (setup->fb.color) {
if (setup->clear.flags & PIPE_CLEAR_COLOR)
bin_everywhere( setup,
lp_rast_clear_color,
&setup->clear.color );
else
bin_everywhere( setup,
lp_rast_load_color,
NULL );
}
if (setup->fb.zstencil) {
if (setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL)
bin_everywhere( setup,
lp_rast_clear_zstencil,
&setup->clear.zstencil );
else
bin_everywhere( setup,
lp_rast_load_zstencil,
NULL );
}
}
/* This basically bins and then flushes any outstanding full-screen
* clears.
*
* TODO: fast path for fullscreen clears and no triangles.
*/
static void
execute_clears( struct setup_context *setup )
{
begin_binning( setup );
rasterize_bins( setup, TRUE );
}
static void
set_state( struct setup_context *setup,
unsigned new_state )
{
unsigned old_state = setup->state;
if (old_state == new_state)
return;
switch (new_state) {
case SETUP_ACTIVE:
if (old_state == SETUP_FLUSHED)
begin_binning( setup );
break;
case SETUP_CLEARED:
if (old_state == SETUP_ACTIVE) {
assert(0);
return;
}
break;
case SETUP_FLUSHED:
if (old_state == SETUP_CLEARED)
execute_clears( setup );
else
rasterize_bins( setup, TRUE );
break;
}
setup->state = new_state;
}
void
lp_setup_flush( struct setup_context *setup,
unsigned flags )
{
set_state( setup, SETUP_FLUSHED );
}
void
lp_setup_bind_framebuffer( struct setup_context *setup,
struct pipe_surface *color,
struct pipe_surface *zstencil )
{
unsigned width, height;
set_state( setup, SETUP_FLUSHED );
pipe_surface_reference( &setup->fb.color, color );
pipe_surface_reference( &setup->fb.zstencil, zstencil );
width = MAX2( color->width, zstencil->width );
height = MAX2( color->height, zstencil->height );
setup->tiles_x = align( width, TILESIZE ) / TILESIZE;
setup->tiles_y = align( height, TILESIZE ) / TILESIZE;
}
void
lp_setup_clear( struct setup_context *setup,
const float *clear_color,
double clear_depth,
unsigned clear_stencil,
unsigned flags )
{
if (setup->state == SETUP_ACTIVE) {
struct lp_rast_clear_info *clear_info;
clear_info = alloc_clear_info( setup );
if (flags & PIPE_CLEAR_COLOR) {
pack_color( setup,
clear_info->color,
clear_color );
bin_everywhere(setup, lp_rast_clear_color, clear_info );
}
if (flags & PIPE_CLEAR_DEPTH_STENCIL) {
pack_depth_stencil( setup,
clear_info->depth,
clear_depth,
clear_stencil );
bin_everywhere(setup, lp_rast_clear_zstencil, clear_info );
}
}
else {
set_state( setup, SETUP_CLEARED );
setup->clear.flags |= flags;
if (flags & PIPE_CLEAR_COLOR) {
util_pack_color(rgba,
setup->fb.cbuf->format,
&setup->clear.color.clear_color );
}
if (flags & PIPE_CLEAR_DEPTH_STENCIL) {
setup->clear.zstencil.clear_zstencil =
util_pack_z_stencil(setup->fb.zsbuf->format,
depth,
stencil);
}
}
}
void
lp_setup_set_fs_inputs( struct setup_context *setup,
const enum lp_interp *interp,
unsigned nr )
{
memcpy( setup->interp, interp, nr * sizeof interp[0] );
}
void
lp_setup_set_shader_state( struct setup_context *setup,
const struct jit_context *jc )
{
}
static void
first_triangle( struct setup_context *setup,
const float (*v0)[4],
const float (*v1)[4],
const float (*v2)[4])
{
set_state( setup, STATE_ACTIVE );
setup_choose_triangle( setup, v0, v1, v2 );
}
/* Stubs for lines & points for now:
*/
void
lp_setup_point(struct setup_context *setup,
const float (*v0)[4])
{
setup->point( setup, v0 );
}
void
lp_setup_line(struct setup_context *setup,
const float (*v0)[4],
const float (*v1)[4])
{
setup->line( setup, v0, v1 );
}
void
lp_setup_tri(struct setup_context *setup,
const float (*v0)[4],
const float (*v1)[4],
const float (*v2)[4])
{
setup->triangle( setup, v0, v1, v2 );
}
void setup_destroy_context( struct setup_context *setup )
{
lp_rast_destroy( setup->rast );
FREE( setup );
}
/**
* Create a new primitive tiling engine. Currently also creates a
* rasterizer to use with it.
*/
struct setup_context *setup_create_context( void )
{
struct setup_context *setup = CALLOC_STRUCT(setup_context);
setup->rast = lp_rast_create( void );
if (!setup->rast)
goto fail;
for (i = 0; i < TILES_X; i++)
for (j = 0; j < TILES_Y; j++)
setup->tile[i][j].first =
setup->tile[i][j].next = CALLOC_STRUCT(cmd_block);
return setup;
fail:
FREE(setup);
return NULL;
}
|