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
|
#include "xorg_exa_tgsi.h"
/*### stupidity defined in X11/extensions/XI.h */
#undef Absolute
#include "pipe/p_format.h"
#include "pipe/p_context.h"
#include "pipe/p_state.h"
#include "pipe/p_inlines.h"
#include "pipe/p_shader_tokens.h"
#include "util/u_memory.h"
#include "util/u_simple_shaders.h"
#include "tgsi/tgsi_ureg.h"
#include "cso_cache/cso_context.h"
#include "cso_cache/cso_hash.h"
/* Vertex shader:
* IN[0] = vertex pos
* IN[1] = src tex coord | solid fill color
* IN[2] = mask tex coord
* IN[3] = dst tex coord
* CONST[0] = (2/dst_width, 2/dst_height, 1, 1)
* CONST[1] = (-1, -1, 0, 0)
*
* OUT[0] = vertex pos
* OUT[1] = src tex coord | solid fill color
* OUT[2] = mask tex coord
* OUT[3] = dst tex coord
*/
/* Fragment shader:
* SAMP[0] = src
* SAMP[1] = mask
* SAMP[2] = dst
* IN[0] = pos src | solid fill color
* IN[1] = pos mask
* IN[2] = pos dst
* CONST[0] = (0, 0, 0, 1)
*
* OUT[0] = color
*/
struct xorg_shaders {
struct exa_context *exa;
struct cso_hash *vs_hash;
struct cso_hash *fs_hash;
};
static const char over_op[] =
"SUB TEMP[3], CONST[0].wwww, TEMP[1].wwww\n"
"MUL TEMP[3], TEMP[0], TEMP[3]\n"
"ADD TEMP[0], TEMP[3], TEMP[0]\n";
static INLINE void
create_preamble(struct ureg_program *ureg)
{
}
static INLINE void
src_in_mask(struct ureg_program *ureg,
struct ureg_dst dst,
struct ureg_src src,
struct ureg_src mask)
{
/* MUL dst, src, mask.wwww */
ureg_MUL(ureg, dst, src,
ureg_scalar(mask, TGSI_SWIZZLE_W));
}
static struct ureg_src
vs_normalize_coords(struct ureg_program *ureg, struct ureg_src coords,
struct ureg_src const0, struct ureg_src const1)
{
struct ureg_dst tmp = ureg_DECL_temporary(ureg);
struct ureg_src ret;
ureg_MUL(ureg, tmp, coords, const0);
ureg_ADD(ureg, tmp, ureg_src(tmp), const1);
ret = ureg_src(tmp);
ureg_release_temporary(ureg, tmp);
return ret;
}
static void *
create_vs(struct pipe_context *pipe,
unsigned vs_traits)
{
struct ureg_program *ureg;
struct ureg_src src;
struct ureg_dst dst;
struct ureg_src const0, const1;
boolean is_fill = vs_traits & VS_FILL;
boolean is_composite = vs_traits & VS_COMPOSITE;
boolean has_mask = vs_traits & VS_MASK;
ureg = ureg_create(TGSI_PROCESSOR_VERTEX);
if (ureg == NULL)
return 0;
const0 = ureg_DECL_constant(ureg);
const1 = ureg_DECL_constant(ureg);
/* it has to be either a fill or a composite op */
debug_assert(is_fill ^ is_composite);
src = ureg_DECL_vs_input(ureg,
TGSI_SEMANTIC_POSITION, 0);
dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0);
src = vs_normalize_coords(ureg, src,
const0, const1);
ureg_MOV(ureg, dst, src);
if (is_composite) {
src = ureg_DECL_vs_input(ureg,
TGSI_SEMANTIC_GENERIC, 1);
dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_GENERIC, 1);
ureg_MOV(ureg, dst, src);
}
if (is_fill) {
src = ureg_DECL_vs_input(ureg,
TGSI_SEMANTIC_COLOR, 1);
dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, 1);
ureg_MOV(ureg, dst, src);
}
if (has_mask) {
src = ureg_DECL_vs_input(ureg,
TGSI_SEMANTIC_GENERIC, 2);
dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 2);
ureg_MOV(ureg, dst, src);
}
ureg_END(ureg);
return ureg_create_shader_and_destroy(ureg, pipe);
}
static void *
create_fs(struct pipe_context *pipe,
unsigned fs_traits)
{
struct ureg_program *ureg;
struct ureg_src dst_sampler, src_sampler, mask_sampler;
struct ureg_src dst_pos, src_pos, mask_pos;
struct ureg_src src, mask;
struct ureg_dst out;
boolean is_fill = fs_traits & VS_FILL;
boolean is_composite = fs_traits & VS_COMPOSITE;
boolean has_mask = fs_traits & VS_MASK;
ureg = ureg_create(TGSI_PROCESSOR_FRAGMENT);
if (ureg == NULL)
return 0;
/* it has to be either a fill or a composite op */
debug_assert(is_fill ^ is_composite);
out = ureg_DECL_output(ureg,
TGSI_SEMANTIC_COLOR,
0);
src_sampler = ureg_DECL_sampler(ureg);
if (is_composite) {
src_pos = ureg_DECL_fs_input(ureg,
TGSI_SEMANTIC_POSITION,
0,
TGSI_INTERPOLATE_PERSPECTIVE);
}
if (is_fill) {
src_pos = ureg_DECL_fs_input(ureg,
TGSI_SEMANTIC_COLOR,
0,
TGSI_INTERPOLATE_PERSPECTIVE);
}
if ((fs_traits & FS_MASK)) {
mask_sampler = ureg_DECL_sampler(ureg);
mask_pos = ureg_DECL_fs_input(ureg,
TGSI_SEMANTIC_POSITION,
1,
TGSI_INTERPOLATE_PERSPECTIVE);
}
#if 0 /* unused right now */
dst_sampler = ureg_DECL_sampler(ureg);
dst_pos = ureg_DECL_fs_input(ureg,
TGSI_SEMANTIC_POSITION,
2,
TGSI_INTERPOLATE_PERSPECTIVE);
#endif
if ((fs_traits & FS_MASK)) {
ureg_TEX(ureg, ureg_dst(mask),
TGSI_TEXTURE_2D, mask_pos, mask_sampler);
/* src IN mask */
src_in_mask(ureg, out, src, mask);
} else {
ureg_TEX(ureg, out,
TGSI_TEXTURE_2D, src_pos, src_sampler);
}
ureg_END(ureg);
return ureg_create_shader_and_destroy(ureg, pipe);
}
struct xorg_shaders * xorg_shaders_create(struct exa_context *exa)
{
struct xorg_shaders *sc = CALLOC_STRUCT(xorg_shaders);
sc->exa = exa;
sc->vs_hash = cso_hash_create();
sc->fs_hash = cso_hash_create();
return sc;
}
static void
cache_destroy(struct cso_context *cso,
struct cso_hash *hash,
unsigned processor)
{
struct cso_hash_iter iter = cso_hash_first_node(hash);
while (!cso_hash_iter_is_null(iter)) {
void *shader = (void *)cso_hash_iter_data(iter);
if (processor == PIPE_SHADER_FRAGMENT) {
cso_delete_fragment_shader(cso, shader);
} else if (processor == PIPE_SHADER_VERTEX) {
cso_delete_vertex_shader(cso, shader);
}
iter = cso_hash_erase(hash, iter);
}
cso_hash_delete(hash);
}
void xorg_shaders_destroy(struct xorg_shaders *sc)
{
cache_destroy(sc->exa->cso, sc->vs_hash,
PIPE_SHADER_VERTEX);
cache_destroy(sc->exa->cso, sc->fs_hash,
PIPE_SHADER_FRAGMENT);
free(sc);
}
static INLINE void *
shader_from_cache(struct pipe_context *pipe,
unsigned type,
struct cso_hash *hash,
unsigned key)
{
void *shader = 0;
struct cso_hash_iter iter = cso_hash_find(hash, key);
if (cso_hash_iter_is_null(iter)) {
if (type == PIPE_SHADER_VERTEX)
shader = create_vs(pipe, key);
else
shader = create_fs(pipe, key);
cso_hash_insert(hash, key, shader);
} else
shader = (void *)cso_hash_iter_data(iter);
return shader;
}
struct xorg_shader xorg_shaders_get(struct xorg_shaders *sc,
unsigned vs_traits,
unsigned fs_traits)
{
struct xorg_shader shader = {0};
void *vs, *fs;
vs = shader_from_cache(sc->exa->ctx, PIPE_SHADER_VERTEX,
sc->vs_hash, vs_traits);
fs = shader_from_cache(sc->exa->ctx, PIPE_SHADER_FRAGMENT,
sc->fs_hash, fs_traits);
debug_assert(vs && fs);
if (!vs || !fs)
return shader;
shader.vs = vs;
shader.fs = fs;
return shader;
}
|
