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
|
/**************************************************************************
*
* Copyright 2007 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, 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 VMWARE 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.
*
**************************************************************************/
/**
* Texture tile caching.
*
* Author:
* Brian Paul
*/
#include "util/u_inlines.h"
#include "util/u_memory.h"
#include "util/u_tile.h"
#include "util/u_format.h"
#include "util/u_math.h"
#include "sp_context.h"
#include "sp_texture.h"
#include "sp_tex_tile_cache.h"
struct softpipe_tex_tile_cache *
sp_create_tex_tile_cache( struct pipe_context *pipe )
{
struct softpipe_tex_tile_cache *tc;
uint pos;
/* make sure max texture size works */
assert((TEX_TILE_SIZE << TEX_ADDR_BITS) >= (1 << (SP_MAX_TEXTURE_2D_LEVELS-1)));
tc = CALLOC_STRUCT( softpipe_tex_tile_cache );
if (tc) {
tc->pipe = pipe;
for (pos = 0; pos < Elements(tc->entries); pos++) {
tc->entries[pos].addr.bits.invalid = 1;
}
tc->last_tile = &tc->entries[0]; /* any tile */
}
return tc;
}
void
sp_destroy_tex_tile_cache(struct softpipe_tex_tile_cache *tc)
{
if (tc) {
uint pos;
for (pos = 0; pos < Elements(tc->entries); pos++) {
/*assert(tc->entries[pos].x < 0);*/
}
if (tc->transfer) {
tc->pipe->transfer_unmap(tc->pipe, tc->transfer);
}
if (tc->tex_trans) {
tc->pipe->transfer_unmap(tc->pipe, tc->tex_trans);
}
FREE( tc );
}
}
/**
* Invalidate all cached tiles for the cached texture.
* Should be called when the texture is modified.
*/
void
sp_tex_tile_cache_validate_texture(struct softpipe_tex_tile_cache *tc)
{
unsigned i;
assert(tc);
assert(tc->texture);
for (i = 0; i < Elements(tc->entries); i++) {
tc->entries[i].addr.bits.invalid = 1;
}
}
static boolean
sp_tex_tile_is_compat_view(struct softpipe_tex_tile_cache *tc,
struct pipe_sampler_view *view)
{
if (!view)
return FALSE;
return (tc->texture == view->texture &&
tc->format == view->format &&
tc->swizzle_r == view->swizzle_r &&
tc->swizzle_g == view->swizzle_g &&
tc->swizzle_b == view->swizzle_b &&
tc->swizzle_a == view->swizzle_a);
}
/**
* Specify the sampler view to cache.
*/
void
sp_tex_tile_cache_set_sampler_view(struct softpipe_tex_tile_cache *tc,
struct pipe_sampler_view *view)
{
struct pipe_resource *texture = view ? view->texture : NULL;
uint i;
assert(!tc->transfer);
if (!sp_tex_tile_is_compat_view(tc, view)) {
pipe_resource_reference(&tc->texture, texture);
if (tc->tex_trans_map) {
tc->pipe->transfer_unmap(tc->pipe, tc->tex_trans);
tc->tex_trans = NULL;
tc->tex_trans_map = NULL;
}
if (view) {
tc->swizzle_r = view->swizzle_r;
tc->swizzle_g = view->swizzle_g;
tc->swizzle_b = view->swizzle_b;
tc->swizzle_a = view->swizzle_a;
tc->format = view->format;
}
/* mark as entries as invalid/empty */
/* XXX we should try to avoid this when the teximage hasn't changed */
for (i = 0; i < Elements(tc->entries); i++) {
tc->entries[i].addr.bits.invalid = 1;
}
tc->tex_z = -1; /* any invalid value here */
}
}
/**
* Flush the tile cache: write all dirty tiles back to the transfer.
* any tiles "flagged" as cleared will be "really" cleared.
*/
void
sp_flush_tex_tile_cache(struct softpipe_tex_tile_cache *tc)
{
int pos;
if (tc->texture) {
/* caching a texture, mark all entries as empty */
for (pos = 0; pos < Elements(tc->entries); pos++) {
tc->entries[pos].addr.bits.invalid = 1;
}
tc->tex_z = -1;
}
}
/**
* Given the texture face, level, zslice, x and y values, compute
* the cache entry position/index where we'd hope to find the
* cached texture tile.
* This is basically a direct-map cache.
* XXX There's probably lots of ways in which we can improve this.
*/
static inline uint
tex_cache_pos( union tex_tile_address addr )
{
uint entry = (addr.bits.x +
addr.bits.y * 9 +
addr.bits.z +
addr.bits.level * 7);
return entry % NUM_TEX_TILE_ENTRIES;
}
/**
* Similar to sp_get_cached_tile() but for textures.
* Tiles are read-only and indexed with more params.
*/
const struct softpipe_tex_cached_tile *
sp_find_cached_tile_tex(struct softpipe_tex_tile_cache *tc,
union tex_tile_address addr )
{
struct softpipe_tex_cached_tile *tile;
boolean zs = util_format_is_depth_or_stencil(tc->format);
tile = tc->entries + tex_cache_pos( addr );
if (addr.value != tile->addr.value) {
/* cache miss. Most misses are because we've invalidated the
* texture cache previously -- most commonly on binding a new
* texture. Currently we effectively flush the cache on texture
* bind.
*/
#if 0
_debug_printf("miss at %u: x=%d y=%d z=%d face=%d level=%d\n"
" tile %u: x=%d y=%d z=%d face=%d level=%d\n",
pos, x/TILE_SIZE, y/TILE_SIZE, z, face, level,
pos, tile->addr.bits.x, tile->addr.bits.y, tile->z, tile->face, tile->level);
#endif
/* check if we need to get a new transfer */
if (!tc->tex_trans ||
tc->tex_level != addr.bits.level ||
tc->tex_z != addr.bits.z) {
/* get new transfer (view into texture) */
unsigned width, height, layer;
if (tc->tex_trans_map) {
tc->pipe->transfer_unmap(tc->pipe, tc->tex_trans);
tc->tex_trans = NULL;
tc->tex_trans_map = NULL;
}
width = u_minify(tc->texture->width0, addr.bits.level);
if (tc->texture->target == PIPE_TEXTURE_1D_ARRAY) {
height = tc->texture->array_size;
layer = 0;
}
else {
height = u_minify(tc->texture->height0, addr.bits.level);
layer = addr.bits.z;
}
tc->tex_trans_map =
pipe_transfer_map(tc->pipe, tc->texture,
addr.bits.level,
layer,
PIPE_TRANSFER_READ | PIPE_TRANSFER_UNSYNCHRONIZED,
0, 0, width, height, &tc->tex_trans);
tc->tex_level = addr.bits.level;
tc->tex_z = addr.bits.z;
}
/* Get tile from the transfer (view into texture), explicitly passing
* the image format.
*/
if (!zs && util_format_is_pure_uint(tc->format)) {
pipe_get_tile_ui_format(tc->tex_trans, tc->tex_trans_map,
addr.bits.x * TEX_TILE_SIZE,
addr.bits.y * TEX_TILE_SIZE,
TEX_TILE_SIZE,
TEX_TILE_SIZE,
tc->format,
(unsigned *) tile->data.colorui);
} else if (!zs && util_format_is_pure_sint(tc->format)) {
pipe_get_tile_i_format(tc->tex_trans, tc->tex_trans_map,
addr.bits.x * TEX_TILE_SIZE,
addr.bits.y * TEX_TILE_SIZE,
TEX_TILE_SIZE,
TEX_TILE_SIZE,
tc->format,
(int *) tile->data.colori);
} else {
pipe_get_tile_rgba_format(tc->tex_trans, tc->tex_trans_map,
addr.bits.x * TEX_TILE_SIZE,
addr.bits.y * TEX_TILE_SIZE,
TEX_TILE_SIZE,
TEX_TILE_SIZE,
tc->format,
(float *) tile->data.color);
}
tile->addr = addr;
}
tc->last_tile = tile;
return tile;
}
|