summaryrefslogtreecommitdiff
path: root/src/gallium/drivers/llvmpipe/lp_tile_soa.py
blob: 2ba39052aba56367be93c2a3c166c37ae4a006ff (plain)
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
#!/usr/bin/env python

'''
/**************************************************************************
 *
 * Copyright 2009 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.
 *
 **************************************************************************/

/**
 * @file
 * Pixel format accessor functions.
 *
 * @author Jose Fonseca <jfonseca@vmware.com>
 */
'''


import sys
import os.path

sys.path.insert(0, os.path.join(os.path.dirname(sys.argv[0]), '../../auxiliary/util'))

from u_format_pack import *


def is_format_supported(format):
    '''Determines whether we actually have the plumbing necessary to generate the 
    to read/write to/from this format.'''

    # FIXME: Ideally we would support any format combination here.

    if format.layout != PLAIN:
        return False

    for i in range(4):
        channel = format.channels[i]
        if channel.type not in (VOID, UNSIGNED, SIGNED, FLOAT):
            return False
        if channel.type == FLOAT and channel.size not in (16, 32 ,64):
            return False

    if format.colorspace not in ('rgb', 'srgb'):
        return False

    return True


def generate_format_read(format, dst_channel, dst_native_type, dst_suffix):
    '''Generate the function to read pixels from a particular format'''

    name = format.short_name()

    src_native_type = native_type(format)

    print 'static void'
    print 'lp_tile_%s_swizzle_%s(%s *dst, const uint8_t *src, unsigned src_stride, unsigned x0, unsigned y0)' % (name, dst_suffix, dst_native_type)
    print '{'
    print '   unsigned x, y;'
    print '   const uint8_t *src_row = src + y0*src_stride;'
    print '   for (y = 0; y < TILE_SIZE; ++y) {'
    print '      const %s *src_pixel = (const %s *)(src_row + x0*%u);' % (src_native_type, src_native_type, format.stride())
    print '      for (x = 0; x < TILE_SIZE; ++x) {'

    names = ['']*4
    if format.colorspace in ('rgb', 'srgb'):
        for i in range(4):
            swizzle = format.swizzles[i]
            if swizzle < 4:
                names[swizzle] += 'rgba'[i]
    elif format.colorspace == 'zs':
        swizzle = format.swizzles[0]
        if swizzle < 4:
            names[swizzle] = 'z'
        else:
            assert False
    else:
        assert False

    if format.layout == PLAIN:
        if not format.is_array():
            print '         %s pixel = *src_pixel++;' % src_native_type
            shift = 0;
            for i in range(4):
                src_channel = format.channels[i]
                width = src_channel.size
                if names[i]:
                    value = 'pixel'
                    mask = (1 << width) - 1
                    if shift:
                        value = '(%s >> %u)' % (value, shift)
                    if shift + width < format.block_size():
                        value = '(%s & 0x%x)' % (value, mask)
                    value = conversion_expr(src_channel, dst_channel, dst_native_type, value, clamp=False)
                    print '         %s %s = %s;' % (dst_native_type, names[i], value)
                shift += width
        else:
            for i in range(4):
                if names[i]:
                    print '         %s %s;' % (dst_native_type, names[i])
            for i in range(4):
                src_channel = format.channels[i]
                if names[i]:
                    value = '(*src_pixel++)'
                    value = conversion_expr(src_channel, dst_channel, dst_native_type, value, clamp=False)
                    print '         %s = %s;' % (names[i], value)
                elif src_channel.size:
                    print '         ++src_pixel;'
    else:
        assert False

    for i in range(4):
        if format.colorspace in ('rgb', 'srgb'):
            swizzle = format.swizzles[i]
            if swizzle < 4:
                value = names[swizzle]
            elif swizzle == SWIZZLE_0:
                value = '0'
            elif swizzle == SWIZZLE_1:
                value = get_one(dst_channel)
            else:
                assert False
        elif format.colorspace == 'zs':
            if i < 3:
                value = 'z'
            else:
                value = get_one(dst_channel)
        else:
            assert False
        print '         TILE_PIXEL(dst, x, y, %u) = %s; /* %s */' % (i, value, 'rgba'[i])

    print '      }'
    print '      src_row += src_stride;'
    print '   }'
    print '}'
    print
    

def pack_rgba(format, src_channel, r, g, b, a):
    """Return an expression for packing r, g, b, a into a pixel of the
    given format.  Ex: '(b << 24) | (g << 16) | (r << 8) | (a << 0)'
    """
    assert format.colorspace in ('rgb', 'srgb')
    inv_swizzle = format.inv_swizzles()
    shift = 0
    expr = None
    for i in range(4):
        # choose r, g, b, or a depending on the inverse swizzle term
        if inv_swizzle[i] == 0:
            value = r
        elif inv_swizzle[i] == 1:
            value = g
        elif inv_swizzle[i] == 2:
            value = b
        elif inv_swizzle[i] == 3:
            value = a
        else:
            value = None

        if value:
            dst_channel = format.channels[i]
            dst_native_type = native_type(format)
            value = conversion_expr(src_channel, dst_channel, dst_native_type, value, clamp=False)
            term = "((%s) << %d)" % (value, shift)
            if expr:
                expr = expr + " | " + term
            else:
                expr = term

        width = format.channels[i].size
        shift = shift + width
    return expr


def emit_unrolled_unswizzle_code(format, src_channel):
    '''Emit code for writing a block based on unrolled loops.
    This is considerably faster than the TILE_PIXEL-based code below.
    '''
    dst_native_type = 'uint%u_t' % format.block_size()
    print '   const unsigned dstpix_stride = dst_stride / %d;' % format.stride()
    print '   %s *dstpix = (%s *) dst;' % (dst_native_type, dst_native_type)
    print '   unsigned int qx, qy, i;'
    print
    print '   for (qy = 0; qy < TILE_SIZE; qy += TILE_VECTOR_HEIGHT) {'
    print '      const unsigned py = y0 + qy;'
    print '      for (qx = 0; qx < TILE_SIZE; qx += TILE_VECTOR_WIDTH) {'
    print '         const unsigned px = x0 + qx;'
    print '         const uint8_t *r = src + 0 * TILE_C_STRIDE;'
    print '         const uint8_t *g = src + 1 * TILE_C_STRIDE;'
    print '         const uint8_t *b = src + 2 * TILE_C_STRIDE;'
    print '         const uint8_t *a = src + 3 * TILE_C_STRIDE;'
    print '         (void) r; (void) g; (void) b; (void) a; /* silence warnings */'
    print '         for (i = 0; i < TILE_C_STRIDE; i += 2) {'
    print '            const uint32_t pixel0 = %s;' % pack_rgba(format, src_channel, "r[i+0]", "g[i+0]", "b[i+0]", "a[i+0]")
    print '            const uint32_t pixel1 = %s;' % pack_rgba(format, src_channel, "r[i+1]", "g[i+1]", "b[i+1]", "a[i+1]")
    print '            const unsigned offset = (py + tile_y_offset[i]) * dstpix_stride + (px + tile_x_offset[i]);'
    print '            dstpix[offset + 0] = pixel0;'
    print '            dstpix[offset + 1] = pixel1;'
    print '         }'
    print '         src += TILE_X_STRIDE;'
    print '      }'
    print '   }'


def emit_tile_pixel_unswizzle_code(format, src_channel):
    '''Emit code for writing a block based on the TILE_PIXEL macro.'''
    dst_native_type = native_type(format)

    inv_swizzle = format.inv_swizzles()

    print '   unsigned x, y;'
    print '   uint8_t *dst_row = dst + y0*dst_stride;'
    print '   for (y = 0; y < TILE_SIZE; ++y) {'
    print '      %s *dst_pixel = (%s *)(dst_row + x0*%u);' % (dst_native_type, dst_native_type, format.stride())
    print '      for (x = 0; x < TILE_SIZE; ++x) {'

    if format.layout == PLAIN:
        if not format.is_array():
            print '         %s pixel = 0;' % dst_native_type
            shift = 0;
            for i in range(4):
                dst_channel = format.channels[i]
                width = dst_channel.size
                if inv_swizzle[i] is not None:
                    value = 'TILE_PIXEL(src, x, y, %u)' % inv_swizzle[i]
                    value = conversion_expr(src_channel, dst_channel, dst_native_type, value, clamp=False)
                    if shift:
                        value = '(%s << %u)' % (value, shift)
                    print '         pixel |= %s;' % value
                shift += width
            print '         *dst_pixel++ = pixel;'
        else:
            for i in range(4):
                dst_channel = format.channels[i]
                if inv_swizzle[i] is not None:
                    value = 'TILE_PIXEL(src, x, y, %u)' % inv_swizzle[i]
                    value = conversion_expr(src_channel, dst_channel, dst_native_type, value, clamp=False)
                    print '         *dst_pixel++ = %s;' % value
                elif dst_channel.size:
                    print '         ++dst_pixel;'
    else:
        assert False

    print '      }'
    print '      dst_row += dst_stride;'
    print '   }'


def generate_format_write(format, src_channel, src_native_type, src_suffix):
    '''Generate the function to write pixels to a particular format'''

    name = format.short_name()

    print 'static void'
    print 'lp_tile_%s_unswizzle_%s(const %s *src, uint8_t *dst, unsigned dst_stride, unsigned x0, unsigned y0)' % (name, src_suffix, src_native_type)
    print '{'
    if format.layout == PLAIN \
        and format.colorspace == 'rgb' \
        and format.block_size() <= 32 \
        and format.is_pot() \
        and not format.is_mixed() \
        and (format.channels[0].type == UNSIGNED \
             or format.channels[1].type == UNSIGNED):
        emit_unrolled_unswizzle_code(format, src_channel)
    else:
        emit_tile_pixel_unswizzle_code(format, src_channel)
    print '}'
    print
    

def generate_ssse3():
    print '''
#if defined(PIPE_ARCH_SSE)

#include "util/u_sse.h"

static void
lp_tile_b8g8r8a8_unorm_swizzle_4ub_ssse3(uint8_t *dst,
                                         const uint8_t *src, unsigned src_stride,
                                         unsigned x0, unsigned y0)
{

   unsigned x, y;
   __m128i *pdst = (__m128i*) dst;
   const uint8_t *ysrc0 = src + y0*src_stride + x0*sizeof(uint32_t);
   unsigned int tile_stridex = src_stride*(TILE_VECTOR_HEIGHT - 1) - sizeof(uint32_t)*TILE_VECTOR_WIDTH;
   unsigned int tile_stridey = src_stride*TILE_VECTOR_HEIGHT;

   const __m128i shuffle00 = _mm_setr_epi8(0x02,0x06,0xff,0xff,0x0a,0x0e,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff);
   const __m128i shuffle01 = _mm_setr_epi8(0x01,0x05,0xff,0xff,0x09,0x0d,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff);
   const __m128i shuffle02 = _mm_setr_epi8(0x00,0x04,0xff,0xff,0x08,0x0c,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff);
   const __m128i shuffle03 = _mm_setr_epi8(0x03,0x07,0xff,0xff,0x0b,0x0f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff);

   const __m128i shuffle10 = _mm_setr_epi8(0xff,0xff,0x02,0x06,0xff,0xff,0x0a,0x0e,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff);
   const __m128i shuffle11 = _mm_setr_epi8(0xff,0xff,0x01,0x05,0xff,0xff,0x09,0x0d,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff);
   const __m128i shuffle12 = _mm_setr_epi8(0xff,0xff,0x00,0x04,0xff,0xff,0x08,0x0c,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff);
   const __m128i shuffle13 = _mm_setr_epi8(0xff,0xff,0x03,0x07,0xff,0xff,0x0b,0x0f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff);

   const __m128i shuffle20 = _mm_setr_epi8(0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x02,0x06,0xff,0xff,0x0a,0x0e,0xff,0xff);
   const __m128i shuffle21 = _mm_setr_epi8(0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x01,0x05,0xff,0xff,0x09,0x0d,0xff,0xff);
   const __m128i shuffle22 = _mm_setr_epi8(0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x04,0xff,0xff,0x08,0x0c,0xff,0xff);
   const __m128i shuffle23 = _mm_setr_epi8(0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x03,0x07,0xff,0xff,0x0b,0x0f,0xff,0xff);

   const __m128i shuffle30 = _mm_setr_epi8(0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x02,0x06,0xff,0xff,0x0a,0x0e);
   const __m128i shuffle31 = _mm_setr_epi8(0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x01,0x05,0xff,0xff,0x09,0x0d);
   const __m128i shuffle32 = _mm_setr_epi8(0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x04,0xff,0xff,0x08,0x0c);
   const __m128i shuffle33 = _mm_setr_epi8(0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x03,0x07,0xff,0xff,0x0b,0x0f);

   for (y = 0; y < TILE_SIZE; y += TILE_VECTOR_HEIGHT) {
      __m128i line0 = *(__m128i*)ysrc0;
      const uint8_t *ysrc = ysrc0 + src_stride;
      ysrc0 += tile_stridey;

      for (x = 0; x < TILE_SIZE; x += TILE_VECTOR_WIDTH) {
         __m128i r, g, b, a, line1;
         line1 = *(__m128i*)ysrc;
         PIPE_READ_WRITE_BARRIER();
         ysrc += src_stride;
         r = _mm_shuffle_epi8(line0, shuffle00);
         g = _mm_shuffle_epi8(line0, shuffle01);
         b = _mm_shuffle_epi8(line0, shuffle02);
         a = _mm_shuffle_epi8(line0, shuffle03);

         line0 = *(__m128i*)ysrc;
         PIPE_READ_WRITE_BARRIER();
         ysrc += src_stride;
         r = _mm_or_si128(r, _mm_shuffle_epi8(line1, shuffle10));
         g = _mm_or_si128(g, _mm_shuffle_epi8(line1, shuffle11));
         b = _mm_or_si128(b, _mm_shuffle_epi8(line1, shuffle12));
         a = _mm_or_si128(a, _mm_shuffle_epi8(line1, shuffle13));

         line1 = *(__m128i*)ysrc;
         PIPE_READ_WRITE_BARRIER();
         ysrc -= tile_stridex;
         r = _mm_or_si128(r, _mm_shuffle_epi8(line0, shuffle20));
         g = _mm_or_si128(g, _mm_shuffle_epi8(line0, shuffle21));
         b = _mm_or_si128(b, _mm_shuffle_epi8(line0, shuffle22));
         a = _mm_or_si128(a, _mm_shuffle_epi8(line0, shuffle23));

         if (x + 1 < TILE_SIZE) {
            line0 = *(__m128i*)ysrc;
            ysrc += src_stride;
         }

         PIPE_READ_WRITE_BARRIER();
         r = _mm_or_si128(r, _mm_shuffle_epi8(line1, shuffle30));
         g = _mm_or_si128(g, _mm_shuffle_epi8(line1, shuffle31));
         b = _mm_or_si128(b, _mm_shuffle_epi8(line1, shuffle32));
         a = _mm_or_si128(a, _mm_shuffle_epi8(line1, shuffle33));

         *pdst++ = r;
         *pdst++ = g;
         *pdst++ = b;
         *pdst++ = a;
      }
   }

}

static void
lp_tile_b8g8r8a8_unorm_unswizzle_4ub_ssse3(const uint8_t *src,
                                          uint8_t *dst, unsigned dst_stride,
                                          unsigned x0, unsigned y0)
{
   unsigned int x, y;
   const __m128i *psrc = (__m128i*) src;
   const __m128i *end = (__m128i*) (src + (y0 + TILE_SIZE - 1)*dst_stride + (x0 + TILE_SIZE - 1)*sizeof(uint32_t));
   uint8_t *pdst = dst + y0 * dst_stride + x0 * sizeof(uint32_t);
   __m128i c0 = *psrc++;
   __m128i c1;

   const __m128i shuffle00 = _mm_setr_epi8(0xff,0xff,0x00,0xff,0xff,0xff,0x01,0xff,0xff,0xff,0x04,0xff,0xff,0xff,0x05,0xff);
   const __m128i shuffle01 = _mm_setr_epi8(0xff,0xff,0x02,0xff,0xff,0xff,0x03,0xff,0xff,0xff,0x06,0xff,0xff,0xff,0x07,0xff);
   const __m128i shuffle02 = _mm_setr_epi8(0xff,0xff,0x08,0xff,0xff,0xff,0x09,0xff,0xff,0xff,0x0c,0xff,0xff,0xff,0x0d,0xff);
   const __m128i shuffle03 = _mm_setr_epi8(0xff,0xff,0x0a,0xff,0xff,0xff,0x0b,0xff,0xff,0xff,0x0e,0xff,0xff,0xff,0x0f,0xff);

   const __m128i shuffle10 = _mm_setr_epi8(0xff,0x00,0xff,0xff,0xff,0x01,0xff,0xff,0xff,0x04,0xff,0xff,0xff,0x05,0xff,0xff);
   const __m128i shuffle11 = _mm_setr_epi8(0xff,0x02,0xff,0xff,0xff,0x03,0xff,0xff,0xff,0x06,0xff,0xff,0xff,0x07,0xff,0xff);
   const __m128i shuffle12 = _mm_setr_epi8(0xff,0x08,0xff,0xff,0xff,0x09,0xff,0xff,0xff,0x0c,0xff,0xff,0xff,0x0d,0xff,0xff);
   const __m128i shuffle13 = _mm_setr_epi8(0xff,0x0a,0xff,0xff,0xff,0x0b,0xff,0xff,0xff,0x0e,0xff,0xff,0xff,0x0f,0xff,0xff);

   const __m128i shuffle20 = _mm_setr_epi8(0x00,0xff,0xff,0xff,0x01,0xff,0xff,0xff,0x04,0xff,0xff,0xff,0x05,0xff,0xff,0xff);
   const __m128i shuffle21 = _mm_setr_epi8(0x02,0xff,0xff,0xff,0x03,0xff,0xff,0xff,0x06,0xff,0xff,0xff,0x07,0xff,0xff,0xff);
   const __m128i shuffle22 = _mm_setr_epi8(0x08,0xff,0xff,0xff,0x09,0xff,0xff,0xff,0x0c,0xff,0xff,0xff,0x0d,0xff,0xff,0xff);
   const __m128i shuffle23 = _mm_setr_epi8(0x0a,0xff,0xff,0xff,0x0b,0xff,0xff,0xff,0x0e,0xff,0xff,0xff,0x0f,0xff,0xff,0xff);

   const __m128i shuffle30 = _mm_setr_epi8(0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x01,0xff,0xff,0xff,0x04,0xff,0xff,0xff,0x05);
   const __m128i shuffle31 = _mm_setr_epi8(0xff,0xff,0xff,0x02,0xff,0xff,0xff,0x03,0xff,0xff,0xff,0x06,0xff,0xff,0xff,0x07);
   const __m128i shuffle32 = _mm_setr_epi8(0xff,0xff,0xff,0x08,0xff,0xff,0xff,0x09,0xff,0xff,0xff,0x0c,0xff,0xff,0xff,0x0d);
   const __m128i shuffle33 = _mm_setr_epi8(0xff,0xff,0xff,0x0a,0xff,0xff,0xff,0x0b,0xff,0xff,0xff,0x0e,0xff,0xff,0xff,0x0f);

   for (y = 0; y < TILE_SIZE; y += TILE_VECTOR_HEIGHT) {
      __m128i *tile = (__m128i*) pdst;
      pdst += dst_stride * TILE_VECTOR_HEIGHT;
      for (x = 0; x < TILE_SIZE; x += TILE_VECTOR_WIDTH) {
         uint8_t *linep = (uint8_t*) (tile++);
         __m128i line0, line1, line2, line3;

         c1 = *psrc++; /* r */
         PIPE_READ_WRITE_BARRIER();
         line0 = _mm_shuffle_epi8(c0, shuffle00);
         line1 = _mm_shuffle_epi8(c0, shuffle01);
         line2 = _mm_shuffle_epi8(c0, shuffle02);
         line3 = _mm_shuffle_epi8(c0, shuffle03);

         c0 = *psrc++; /* g */
         PIPE_READ_WRITE_BARRIER();
         line0 = _mm_or_si128(line0, _mm_shuffle_epi8(c1, shuffle10));
         line1 = _mm_or_si128(line1, _mm_shuffle_epi8(c1, shuffle11));
         line2 = _mm_or_si128(line2, _mm_shuffle_epi8(c1, shuffle12));
         line3 = _mm_or_si128(line3, _mm_shuffle_epi8(c1, shuffle13));

         c1 = *psrc++; /* b */
         PIPE_READ_WRITE_BARRIER();
         line0 = _mm_or_si128(line0, _mm_shuffle_epi8(c0, shuffle20));
         line1 = _mm_or_si128(line1, _mm_shuffle_epi8(c0, shuffle21));
         line2 = _mm_or_si128(line2, _mm_shuffle_epi8(c0, shuffle22));
         line3 = _mm_or_si128(line3, _mm_shuffle_epi8(c0, shuffle23));

         if (psrc != end)
                 c0 = *psrc++; /* a */
         PIPE_READ_WRITE_BARRIER();
         line0 = _mm_or_si128(line0, _mm_shuffle_epi8(c1, shuffle30));
         line1 = _mm_or_si128(line1, _mm_shuffle_epi8(c1, shuffle31));
         line2 = _mm_or_si128(line2, _mm_shuffle_epi8(c1, shuffle32));
         line3 = _mm_or_si128(line3, _mm_shuffle_epi8(c1, shuffle33));

         *(__m128i*) (linep) = line0;
         *(__m128i*) (((char*)linep) + dst_stride) = line1;
         *(__m128i*) (((char*)linep) + 2 * dst_stride) = line2;
         *(__m128i*) (((char*)linep) + 3 * dst_stride) = line3;
      }
   }
}

#endif /* PIPE_ARCH_SSSE3 */
'''


def generate_swizzle(formats, dst_channel, dst_native_type, dst_suffix):
    '''Generate the dispatch function to read pixels from any format'''

    for format in formats:
        if is_format_supported(format):
            generate_format_read(format, dst_channel, dst_native_type, dst_suffix)

    print 'void'
    print 'lp_tile_swizzle_%s(enum pipe_format format, %s *dst, const void *src, unsigned src_stride, unsigned x, unsigned y)' % (dst_suffix, dst_native_type)
    print '{'
    print '   void (*func)(%s *dst, const uint8_t *src, unsigned src_stride, unsigned x0, unsigned y0);' % dst_native_type
    print '#ifdef DEBUG'
    print '   lp_tile_swizzle_count += 1;'
    print '#endif'
    print '   switch(format) {'
    for format in formats:
        if is_format_supported(format):
            print '   case %s:' % format.name
            func_name = 'lp_tile_%s_swizzle_%s' % (format.short_name(), dst_suffix)
            if format.name == 'PIPE_FORMAT_B8G8R8A8_UNORM':
                print '#ifdef PIPE_ARCH_SSE'
                print '      func = util_cpu_caps.has_ssse3 ? %s_ssse3 : %s;' % (func_name, func_name)
                print '#else'
                print '      func = %s;' % (func_name,)
                print '#endif'
            else:
                print '      func = %s;' % (func_name,)
            print '      break;'
    print '   default:'
    print '      debug_printf("%s: unsupported format %s\\n", __FUNCTION__, util_format_name(format));'
    print '      return;'
    print '   }'
    print '   func(dst, (const uint8_t *)src, src_stride, x, y);'
    print '}'
    print


def generate_unswizzle(formats, src_channel, src_native_type, src_suffix):
    '''Generate the dispatch function to write pixels to any format'''

    for format in formats:
        if is_format_supported(format):
            generate_format_write(format, src_channel, src_native_type, src_suffix)

    print 'void'
    print 'lp_tile_unswizzle_%s(enum pipe_format format, const %s *src, void *dst, unsigned dst_stride, unsigned x, unsigned y)' % (src_suffix, src_native_type)
    
    print '{'
    print '   void (*func)(const %s *src, uint8_t *dst, unsigned dst_stride, unsigned x0, unsigned y0);' % src_native_type
    print '#ifdef DEBUG'
    print '   lp_tile_unswizzle_count += 1;'
    print '#endif'
    print '   switch(format) {'
    for format in formats:
        if is_format_supported(format):
            print '   case %s:' % format.name
            func_name = 'lp_tile_%s_unswizzle_%s' % (format.short_name(), src_suffix)
            if format.name == 'PIPE_FORMAT_B8G8R8A8_UNORM':
                print '#ifdef PIPE_ARCH_SSE'
                print '      func = util_cpu_caps.has_ssse3 ? %s_ssse3 : %s;' % (func_name, func_name)
                print '#else'
                print '      func = %s;' % (func_name,)
                print '#endif'
            else:
                print '      func = %s;' % (func_name,)
            print '      break;'
    print '   default:'
    print '      debug_printf("%s: unsupported format %s\\n", __FUNCTION__, util_format_name(format));'
    print '      return;'
    print '   }'
    print '   func(src, (uint8_t *)dst, dst_stride, x, y);'
    print '}'
    print


def main():
    formats = []
    for arg in sys.argv[1:]:
        formats.extend(parse(arg))

    print '/* This file is autogenerated by lp_tile_soa.py from u_format.csv. Do not edit directly. */'
    print
    # This will print the copyright message on the top of this file
    print __doc__.strip()
    print
    print '#include "pipe/p_compiler.h"'
    print '#include "util/u_format.h"'
    print '#include "util/u_math.h"'
    print '#include "util/u_half.h"'
    print '#include "util/u_cpu_detect.h"'
    print '#include "lp_tile_soa.h"'
    print
    print '#ifdef DEBUG'
    print 'unsigned lp_tile_unswizzle_count = 0;'
    print 'unsigned lp_tile_swizzle_count = 0;'
    print '#endif'
    print
    print 'const unsigned char'
    print 'tile_offset[TILE_VECTOR_HEIGHT][TILE_VECTOR_WIDTH] = {'
    print '   {  0,  1,  4,  5},'
    print '   {  2,  3,  6,  7},'
    print '   {  8,  9, 12, 13},'
    print '   { 10, 11, 14, 15}'
    print '};'
    print
    print '/* Note: these lookup tables could be replaced with some'
    print ' * bit-twiddling code, but this is a little faster.'
    print ' */'
    print 'static unsigned tile_x_offset[TILE_VECTOR_WIDTH * TILE_VECTOR_HEIGHT] = {'
    print '   0, 1, 0, 1, 2, 3, 2, 3,'
    print '   0, 1, 0, 1, 2, 3, 2, 3'
    print '};'
    print
    print 'static unsigned tile_y_offset[TILE_VECTOR_WIDTH * TILE_VECTOR_HEIGHT] = {'
    print '   0, 0, 1, 1, 0, 0, 1, 1,'
    print '   2, 2, 3, 3, 2, 2, 3, 3'
    print '};'
    print

    generate_ssse3()

    channel = Channel(UNSIGNED, True, 8)
    native_type = 'uint8_t'
    suffix = '4ub'

    generate_swizzle(formats, channel, native_type, suffix)
    generate_unswizzle(formats, channel, native_type, suffix)


if __name__ == '__main__':
    main()