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
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
|
#include "xorg_exa.h"
#include "xorg_renderer.h"
#include "xorg_exa_tgsi.h"
#include "cso_cache/cso_context.h"
#include "util/u_draw_quad.h"
#include "util/u_format.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "util/u_rect.h"
#include "pipe/p_inlines.h"
#include <math.h>
#define floatsEqual(x, y) (fabs(x - y) <= 0.00001f * MIN2(fabs(x), fabs(y)))
#define floatIsZero(x) (floatsEqual((x) + 1, 1))
#define NUM_COMPONENTS 4
static INLINE boolean is_affine(float *matrix)
{
return floatIsZero(matrix[2]) && floatIsZero(matrix[5])
&& floatsEqual(matrix[8], 1);
}
static INLINE void map_point(float *mat, float x, float y,
float *out_x, float *out_y)
{
if (!mat) {
*out_x = x;
*out_y = y;
return;
}
*out_x = mat[0]*x + mat[3]*y + mat[6];
*out_y = mat[1]*x + mat[4]*y + mat[7];
if (!is_affine(mat)) {
float w = 1/(mat[2]*x + mat[5]*y + mat[8]);
*out_x *= w;
*out_y *= w;
}
}
static INLINE struct pipe_buffer *
renderer_buffer_create(struct xorg_renderer *r)
{
struct pipe_buffer *buf =
pipe_user_buffer_create(r->pipe->screen,
r->buffer,
sizeof(float)*
r->buffer_size);
r->buffer_size = 0;
return buf;
}
static INLINE void
renderer_draw(struct xorg_renderer *r)
{
struct pipe_context *pipe = r->pipe;
struct pipe_buffer *buf = 0;
int num_verts = r->buffer_size/(r->attrs_per_vertex * NUM_COMPONENTS);
if (!r->buffer_size)
return;
buf = renderer_buffer_create(r);
if (buf) {
util_draw_vertex_buffer(pipe, buf, 0,
PIPE_PRIM_QUADS,
num_verts, /* verts */
r->attrs_per_vertex); /* attribs/vert */
pipe_buffer_reference(&buf, NULL);
}
}
static INLINE void
renderer_draw_conditional(struct xorg_renderer *r,
int next_batch)
{
if (r->buffer_size + next_batch >= BUF_SIZE ||
(next_batch == 0 && r->buffer_size)) {
renderer_draw(r);
}
}
static void
renderer_init_state(struct xorg_renderer *r)
{
struct pipe_depth_stencil_alpha_state dsa;
struct pipe_rasterizer_state raster;
/* set common initial clip state */
memset(&dsa, 0, sizeof(struct pipe_depth_stencil_alpha_state));
cso_set_depth_stencil_alpha(r->cso, &dsa);
/* XXX: move to renderer_init_state? */
memset(&raster, 0, sizeof(struct pipe_rasterizer_state));
raster.gl_rasterization_rules = 1;
cso_set_rasterizer(r->cso, &raster);
}
static INLINE void
add_vertex_color(struct xorg_renderer *r,
float x, float y,
float color[4])
{
float *vertex = r->buffer + r->buffer_size;
vertex[0] = x;
vertex[1] = y;
vertex[2] = 0.f; /*z*/
vertex[3] = 1.f; /*w*/
vertex[4] = color[0]; /*r*/
vertex[5] = color[1]; /*g*/
vertex[6] = color[2]; /*b*/
vertex[7] = color[3]; /*a*/
r->buffer_size += 8;
}
static INLINE void
add_vertex_1tex(struct xorg_renderer *r,
float x, float y, float s, float t)
{
float *vertex = r->buffer + r->buffer_size;
vertex[0] = x;
vertex[1] = y;
vertex[2] = 0.f; /*z*/
vertex[3] = 1.f; /*w*/
vertex[4] = s; /*s*/
vertex[5] = t; /*t*/
vertex[6] = 0.f; /*r*/
vertex[7] = 1.f; /*q*/
r->buffer_size += 8;
}
static void
add_vertex_data1(struct xorg_renderer *r,
float srcX, float srcY, float dstX, float dstY,
float width, float height,
struct pipe_texture *src, float *src_matrix)
{
float s0, t0, s1, t1, s2, t2, s3, t3;
float pt0[2], pt1[2], pt2[2], pt3[2];
pt0[0] = srcX;
pt0[1] = srcY;
pt1[0] = (srcX + width);
pt1[1] = srcY;
pt2[0] = (srcX + width);
pt2[1] = (srcY + height);
pt3[0] = srcX;
pt3[1] = (srcY + height);
if (src_matrix) {
map_point(src_matrix, pt0[0], pt0[1], &pt0[0], &pt0[1]);
map_point(src_matrix, pt1[0], pt1[1], &pt1[0], &pt1[1]);
map_point(src_matrix, pt2[0], pt2[1], &pt2[0], &pt2[1]);
map_point(src_matrix, pt3[0], pt3[1], &pt3[0], &pt3[1]);
}
s0 = pt0[0] / src->width0;
s1 = pt1[0] / src->width0;
s2 = pt2[0] / src->width0;
s3 = pt3[0] / src->width0;
t0 = pt0[1] / src->height0;
t1 = pt1[1] / src->height0;
t2 = pt2[1] / src->height0;
t3 = pt3[1] / src->height0;
/* 1st vertex */
add_vertex_1tex(r, dstX, dstY, s0, t0);
/* 2nd vertex */
add_vertex_1tex(r, dstX + width, dstY, s1, t1);
/* 3rd vertex */
add_vertex_1tex(r, dstX + width, dstY + height, s2, t2);
/* 4th vertex */
add_vertex_1tex(r, dstX, dstY + height, s3, t3);
}
static INLINE void
add_vertex_2tex(struct xorg_renderer *r,
float x, float y,
float s0, float t0, float s1, float t1)
{
float *vertex = r->buffer + r->buffer_size;
vertex[0] = x;
vertex[1] = y;
vertex[2] = 0.f; /*z*/
vertex[3] = 1.f; /*w*/
vertex[4] = s0; /*s*/
vertex[5] = t0; /*t*/
vertex[6] = 0.f; /*r*/
vertex[7] = 1.f; /*q*/
vertex[8] = s1; /*s*/
vertex[9] = t1; /*t*/
vertex[10] = 0.f; /*r*/
vertex[11] = 1.f; /*q*/
r->buffer_size += 12;
}
static void
add_vertex_data2(struct xorg_renderer *r,
float srcX, float srcY, float maskX, float maskY,
float dstX, float dstY, float width, float height,
struct pipe_texture *src,
struct pipe_texture *mask,
float *src_matrix, float *mask_matrix)
{
float src_s0, src_t0, src_s1, src_t1;
float mask_s0, mask_t0, mask_s1, mask_t1;
float spt0[2], spt1[2];
float mpt0[2], mpt1[2];
spt0[0] = srcX;
spt0[1] = srcY;
spt1[0] = srcX + width;
spt1[1] = srcY + height;
mpt0[0] = maskX;
mpt0[1] = maskY;
mpt1[0] = maskX + width;
mpt1[1] = maskY + height;
if (src_matrix) {
map_point(src_matrix, spt0[0], spt0[1], &spt0[0], &spt0[1]);
map_point(src_matrix, spt1[0], spt1[1], &spt1[0], &spt1[1]);
}
if (mask_matrix) {
map_point(mask_matrix, mpt0[0], mpt0[1], &mpt0[0], &mpt0[1]);
map_point(mask_matrix, mpt1[0], mpt1[1], &mpt1[0], &mpt1[1]);
}
src_s0 = spt0[0] / src->width0;
src_t0 = spt0[1] / src->height0;
src_s1 = spt1[0] / src->width0;
src_t1 = spt1[1] / src->height0;
mask_s0 = mpt0[0] / mask->width0;
mask_t0 = mpt0[1] / mask->height0;
mask_s1 = mpt1[0] / mask->width0;
mask_t1 = mpt1[1] / mask->height0;
/* 1st vertex */
add_vertex_2tex(r, dstX, dstY,
src_s0, src_t0, mask_s0, mask_t0);
/* 2nd vertex */
add_vertex_2tex(r, dstX + width, dstY,
src_s1, src_t0, mask_s1, mask_t0);
/* 3rd vertex */
add_vertex_2tex(r, dstX + width, dstY + height,
src_s1, src_t1, mask_s1, mask_t1);
/* 4th vertex */
add_vertex_2tex(r, dstX, dstY + height,
src_s0, src_t1, mask_s0, mask_t1);
}
static struct pipe_buffer *
setup_vertex_data_yuv(struct xorg_renderer *r,
float srcX, float srcY, float srcW, float srcH,
float dstX, float dstY, float dstW, float dstH,
struct pipe_texture **tex)
{
float s0, t0, s1, t1;
float spt0[2], spt1[2];
spt0[0] = srcX;
spt0[1] = srcY;
spt1[0] = srcX + srcW;
spt1[1] = srcY + srcH;
s0 = spt0[0] / tex[0]->width0;
t0 = spt0[1] / tex[0]->height0;
s1 = spt1[0] / tex[0]->width0;
t1 = spt1[1] / tex[0]->height0;
/* 1st vertex */
add_vertex_1tex(r, dstX, dstY, s0, t0);
/* 2nd vertex */
add_vertex_1tex(r, dstX + dstW, dstY,
s1, t0);
/* 3rd vertex */
add_vertex_1tex(r, dstX + dstW, dstY + dstH,
s1, t1);
/* 4th vertex */
add_vertex_1tex(r, dstX, dstY + dstH,
s0, t1);
return renderer_buffer_create(r);
}
/* Set up framebuffer, viewport and vertex shader constant buffer
* state for a particular destinaton surface. In all our rendering,
* these concepts are linked.
*/
void renderer_bind_destination(struct xorg_renderer *r,
struct pipe_surface *surface,
int width,
int height )
{
struct pipe_framebuffer_state fb;
struct pipe_viewport_state viewport;
/* Framebuffer uses actual surface width/height
*/
memset(&fb, 0, sizeof fb);
fb.width = surface->width;
fb.height = surface->height;
fb.nr_cbufs = 1;
fb.cbufs[0] = surface;
fb.zsbuf = 0;
/* Viewport just touches the bit we're interested in:
*/
viewport.scale[0] = width / 2.f;
viewport.scale[1] = height / 2.f;
viewport.scale[2] = 1.0;
viewport.scale[3] = 1.0;
viewport.translate[0] = width / 2.f;
viewport.translate[1] = height / 2.f;
viewport.translate[2] = 0.0;
viewport.translate[3] = 0.0;
/* Constant buffer set up to match viewport dimensions:
*/
if (r->fb_width != width ||
r->fb_height != height)
{
float vs_consts[8] = {
2.f/width, 2.f/height, 1, 1,
-1, -1, 0, 0
};
r->fb_width = width;
r->fb_height = height;
renderer_set_constants(r, PIPE_SHADER_VERTEX,
vs_consts, sizeof vs_consts);
}
cso_set_framebuffer(r->cso, &fb);
cso_set_viewport(r->cso, &viewport);
}
struct xorg_renderer * renderer_create(struct pipe_context *pipe)
{
struct xorg_renderer *renderer = CALLOC_STRUCT(xorg_renderer);
renderer->pipe = pipe;
renderer->cso = cso_create_context(pipe);
renderer->shaders = xorg_shaders_create(renderer);
renderer_init_state(renderer);
return renderer;
}
void renderer_destroy(struct xorg_renderer *r)
{
struct pipe_buffer **vsbuf = &r->vs_const_buffer;
struct pipe_buffer **fsbuf = &r->fs_const_buffer;
if (*vsbuf)
pipe_buffer_reference(vsbuf, NULL);
if (*fsbuf)
pipe_buffer_reference(fsbuf, NULL);
if (r->shaders) {
xorg_shaders_destroy(r->shaders);
r->shaders = NULL;
}
if (r->cso) {
cso_release_all(r->cso);
cso_destroy_context(r->cso);
r->cso = NULL;
}
}
void renderer_set_constants(struct xorg_renderer *r,
int shader_type,
const float *params,
int param_bytes)
{
struct pipe_buffer **cbuf =
(shader_type == PIPE_SHADER_VERTEX) ? &r->vs_const_buffer :
&r->fs_const_buffer;
pipe_buffer_reference(cbuf, NULL);
*cbuf = pipe_buffer_create(r->pipe->screen, 16,
PIPE_BUFFER_USAGE_CONSTANT,
param_bytes);
if (*cbuf) {
pipe_buffer_write(r->pipe->screen, *cbuf,
0, param_bytes, params);
}
r->pipe->set_constant_buffer(r->pipe, shader_type, 0, *cbuf);
}
void renderer_copy_prepare(struct xorg_renderer *r,
struct pipe_surface *dst_surface,
struct pipe_texture *src_texture)
{
struct pipe_context *pipe = r->pipe;
struct pipe_screen *screen = pipe->screen;
struct xorg_shader shader;
assert(screen->is_format_supported(screen, dst_surface->format,
PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_RENDER_TARGET,
0));
/* set misc state we care about */
{
struct pipe_blend_state blend;
memset(&blend, 0, sizeof(blend));
blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.colormask = PIPE_MASK_RGBA;
cso_set_blend(r->cso, &blend);
}
/* sampler */
{
struct pipe_sampler_state sampler;
memset(&sampler, 0, sizeof(sampler));
sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
sampler.normalized_coords = 1;
cso_single_sampler(r->cso, 0, &sampler);
cso_single_sampler_done(r->cso);
}
renderer_bind_destination(r, dst_surface,
dst_surface->width,
dst_surface->height);
/* texture */
cso_set_sampler_textures(r->cso, 1, &src_texture);
/* shaders */
shader = xorg_shaders_get(r->shaders,
VS_COMPOSITE,
FS_COMPOSITE);
cso_set_vertex_shader_handle(r->cso, shader.vs);
cso_set_fragment_shader_handle(r->cso, shader.fs);
r->buffer_size = 0;
r->attrs_per_vertex = 2;
}
struct pipe_texture *
renderer_clone_texture(struct xorg_renderer *r,
struct pipe_texture *src)
{
enum pipe_format format;
struct pipe_context *pipe = r->pipe;
struct pipe_screen *screen = pipe->screen;
struct pipe_texture *pt;
struct pipe_texture templ;
if (pipe->is_texture_referenced(pipe, src, 0, 0) &
PIPE_REFERENCED_FOR_WRITE)
pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
/* the coming in texture should already have that invariance */
debug_assert(screen->is_format_supported(screen, src->format,
PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_SAMPLER, 0));
format = src->format;
memset(&templ, 0, sizeof(templ));
templ.target = PIPE_TEXTURE_2D;
templ.format = format;
templ.last_level = 0;
templ.width0 = src->width0;
templ.height0 = src->height0;
templ.depth0 = 1;
templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER;
pt = screen->texture_create(screen, &templ);
debug_assert(!pt || pipe_is_referenced(&pt->reference));
if (!pt)
return NULL;
{
/* copy source framebuffer surface into texture */
struct pipe_surface *ps_read = screen->get_tex_surface(
screen, src, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_READ);
struct pipe_surface *ps_tex = screen->get_tex_surface(
screen, pt, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE );
if (pipe->surface_copy) {
pipe->surface_copy(pipe,
ps_tex, /* dest */
0, 0, /* destx/y */
ps_read,
0, 0, src->width0, src->height0);
} else {
util_surface_copy(pipe, FALSE,
ps_tex, /* dest */
0, 0, /* destx/y */
ps_read,
0, 0, src->width0, src->height0);
}
pipe_surface_reference(&ps_read, NULL);
pipe_surface_reference(&ps_tex, NULL);
}
return pt;
}
void renderer_copy_pixmap(struct xorg_renderer *r,
int dx, int dy,
int sx, int sy,
int width, int height,
float src_width,
float src_height)
{
float s0, t0, s1, t1;
float x0, y0, x1, y1;
/* XXX: could put the texcoord scaling calculation into the vertex
* shader.
*/
s0 = sx / src_width;
s1 = (sx + width) / src_width;
t0 = sy / src_height;
t1 = (sy + height) / src_height;
x0 = dx;
x1 = dx + width;
y0 = dy;
y1 = dy + height;
/* draw quad */
renderer_draw_conditional(r, 4*8);
add_vertex_1tex(r, x0, y0, s0, t0);
add_vertex_1tex(r, x1, y0, s1, t0);
add_vertex_1tex(r, x1, y1, s1, t1);
add_vertex_1tex(r, x0, y1, s0, t1);
}
void renderer_draw_yuv(struct xorg_renderer *r,
int src_x, int src_y, int src_w, int src_h,
int dst_x, int dst_y, int dst_w, int dst_h,
struct pipe_texture **textures)
{
struct pipe_context *pipe = r->pipe;
struct pipe_buffer *buf = 0;
buf = setup_vertex_data_yuv(r,
src_x, src_y, src_w, src_h,
dst_x, dst_y, dst_w, dst_h,
textures);
if (buf) {
const int num_attribs = 2; /*pos + tex coord*/
util_draw_vertex_buffer(pipe, buf, 0,
PIPE_PRIM_QUADS,
4, /* verts */
num_attribs); /* attribs/vert */
pipe_buffer_reference(&buf, NULL);
}
}
void renderer_begin_solid(struct xorg_renderer *r)
{
r->buffer_size = 0;
r->attrs_per_vertex = 2;
}
void renderer_solid(struct xorg_renderer *r,
int x0, int y0,
int x1, int y1,
float *color)
{
/*
debug_printf("solid rect[(%d, %d), (%d, %d)], rgba[%f, %f, %f, %f]\n",
x0, y0, x1, y1, color[0], color[1], color[2], color[3]);*/
renderer_draw_conditional(r, 4 * 8);
/* 1st vertex */
add_vertex_color(r, x0, y0, color);
/* 2nd vertex */
add_vertex_color(r, x1, y0, color);
/* 3rd vertex */
add_vertex_color(r, x1, y1, color);
/* 4th vertex */
add_vertex_color(r, x0, y1, color);
}
void renderer_draw_flush(struct xorg_renderer *r)
{
renderer_draw_conditional(r, 0);
}
void renderer_begin_textures(struct xorg_renderer *r,
struct pipe_texture **textures,
int num_textures)
{
r->attrs_per_vertex = 1 + num_textures;
r->buffer_size = 0;
}
void renderer_texture(struct xorg_renderer *r,
int *pos,
int width, int height,
struct pipe_texture **textures,
int num_textures,
float *src_matrix,
float *mask_matrix)
{
#if 0
if (src_matrix) {
debug_printf("src_matrix = \n");
debug_printf("%f, %f, %f\n", src_matrix[0], src_matrix[1], src_matrix[2]);
debug_printf("%f, %f, %f\n", src_matrix[3], src_matrix[4], src_matrix[5]);
debug_printf("%f, %f, %f\n", src_matrix[6], src_matrix[7], src_matrix[8]);
}
if (mask_matrix) {
debug_printf("mask_matrix = \n");
debug_printf("%f, %f, %f\n", mask_matrix[0], mask_matrix[1], mask_matrix[2]);
debug_printf("%f, %f, %f\n", mask_matrix[3], mask_matrix[4], mask_matrix[5]);
debug_printf("%f, %f, %f\n", mask_matrix[6], mask_matrix[7], mask_matrix[8]);
}
#endif
switch(r->attrs_per_vertex) {
case 2:
renderer_draw_conditional(r, 4 * 8);
add_vertex_data1(r,
pos[0], pos[1], /* src */
pos[4], pos[5], /* dst */
width, height,
textures[0], src_matrix);
break;
case 3:
renderer_draw_conditional(r, 4 * 12);
add_vertex_data2(r,
pos[0], pos[1], /* src */
pos[2], pos[3], /* mask */
pos[4], pos[5], /* dst */
width, height,
textures[0], textures[1],
src_matrix, mask_matrix);
break;
default:
debug_assert(!"Unsupported number of textures");
break;
}
}
|