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Issue 1574253004: refactor ARGBToI422 using ARGBToI420 internally (Closed) Base URL: https://chromium.googlesource.com/libyuv/libyuv@master
Patch Set: Created 4 years, 11 months ago
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1 /* 1 /*
2 * Copyright 2011 The LibYuv Project Authors. All rights reserved. 2 * Copyright 2011 The LibYuv Project Authors. All rights reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source 5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
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426 uint8 ag = AVGB(src_rgb0[G], src_rgb1[G]); \ 426 uint8 ag = AVGB(src_rgb0[G], src_rgb1[G]); \
427 uint8 ar = AVGB(src_rgb0[R], src_rgb1[R]); \ 427 uint8 ar = AVGB(src_rgb0[R], src_rgb1[R]); \
428 dst_u[0] = RGBToUJ(ar, ag, ab); \ 428 dst_u[0] = RGBToUJ(ar, ag, ab); \
429 dst_v[0] = RGBToVJ(ar, ag, ab); \ 429 dst_v[0] = RGBToVJ(ar, ag, ab); \
430 } \ 430 } \
431 } 431 }
432 432
433 MAKEROWYJ(ARGB, 2, 1, 0, 4) 433 MAKEROWYJ(ARGB, 2, 1, 0, 4)
434 #undef MAKEROWYJ 434 #undef MAKEROWYJ
435 435
436 void ARGBToUVJ422Row_C(const uint8* src_argb,
437 uint8* dst_u, uint8* dst_v, int width) {
438 int x;
439 for (x = 0; x < width - 1; x += 2) {
440 uint8 ab = (src_argb[0] + src_argb[4]) >> 1;
441 uint8 ag = (src_argb[1] + src_argb[5]) >> 1;
442 uint8 ar = (src_argb[2] + src_argb[6]) >> 1;
443 dst_u[0] = RGBToUJ(ar, ag, ab);
444 dst_v[0] = RGBToVJ(ar, ag, ab);
445 src_argb += 8;
446 dst_u += 1;
447 dst_v += 1;
448 }
449 if (width & 1) {
450 uint8 ab = src_argb[0];
451 uint8 ag = src_argb[1];
452 uint8 ar = src_argb[2];
453 dst_u[0] = RGBToUJ(ar, ag, ab);
454 dst_v[0] = RGBToVJ(ar, ag, ab);
455 }
456 }
457
458 void RGB565ToYRow_C(const uint8* src_rgb565, uint8* dst_y, int width) { 436 void RGB565ToYRow_C(const uint8* src_rgb565, uint8* dst_y, int width) {
459 int x; 437 int x;
460 for (x = 0; x < width; ++x) { 438 for (x = 0; x < width; ++x) {
461 uint8 b = src_rgb565[0] & 0x1f; 439 uint8 b = src_rgb565[0] & 0x1f;
462 uint8 g = (src_rgb565[0] >> 5) | ((src_rgb565[1] & 0x07) << 3); 440 uint8 g = (src_rgb565[0] >> 5) | ((src_rgb565[1] & 0x07) << 3);
463 uint8 r = src_rgb565[1] >> 3; 441 uint8 r = src_rgb565[1] >> 3;
464 b = (b << 3) | (b >> 2); 442 b = (b << 3) | (b >> 2);
465 g = (g << 2) | (g >> 4); 443 g = (g << 2) | (g >> 4);
466 r = (r << 3) | (r >> 2); 444 r = (r << 3) | (r >> 2);
467 dst_y[0] = RGBToY(r, g, b); 445 dst_y[0] = RGBToY(r, g, b);
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651 uint8 ag = src_argb[1]; 629 uint8 ag = src_argb[1];
652 uint8 ar = src_argb[2]; 630 uint8 ar = src_argb[2];
653 dst_u[0] = RGBToU(ar, ag, ab); 631 dst_u[0] = RGBToU(ar, ag, ab);
654 dst_v[0] = RGBToV(ar, ag, ab); 632 dst_v[0] = RGBToV(ar, ag, ab);
655 src_argb += 4; 633 src_argb += 4;
656 dst_u += 1; 634 dst_u += 1;
657 dst_v += 1; 635 dst_v += 1;
658 } 636 }
659 } 637 }
660 638
661 void ARGBToUV422Row_C(const uint8* src_argb,
662 uint8* dst_u, uint8* dst_v, int width) {
663 int x;
664 for (x = 0; x < width - 1; x += 2) {
665 uint8 ab = (src_argb[0] + src_argb[4]) >> 1;
666 uint8 ag = (src_argb[1] + src_argb[5]) >> 1;
667 uint8 ar = (src_argb[2] + src_argb[6]) >> 1;
668 dst_u[0] = RGBToU(ar, ag, ab);
669 dst_v[0] = RGBToV(ar, ag, ab);
670 src_argb += 8;
671 dst_u += 1;
672 dst_v += 1;
673 }
674 if (width & 1) {
675 uint8 ab = src_argb[0];
676 uint8 ag = src_argb[1];
677 uint8 ar = src_argb[2];
678 dst_u[0] = RGBToU(ar, ag, ab);
679 dst_v[0] = RGBToV(ar, ag, ab);
680 }
681 }
682
683 void ARGBToUV411Row_C(const uint8* src_argb, 639 void ARGBToUV411Row_C(const uint8* src_argb,
684 uint8* dst_u, uint8* dst_v, int width) { 640 uint8* dst_u, uint8* dst_v, int width) {
685 int x; 641 int x;
686 for (x = 0; x < width - 3; x += 4) { 642 for (x = 0; x < width - 3; x += 4) {
687 uint8 ab = (src_argb[0] + src_argb[4] + src_argb[8] + src_argb[12]) >> 2; 643 uint8 ab = (src_argb[0] + src_argb[4] + src_argb[8] + src_argb[12]) >> 2;
688 uint8 ag = (src_argb[1] + src_argb[5] + src_argb[9] + src_argb[13]) >> 2; 644 uint8 ag = (src_argb[1] + src_argb[5] + src_argb[9] + src_argb[13]) >> 2;
689 uint8 ar = (src_argb[2] + src_argb[6] + src_argb[10] + src_argb[14]) >> 2; 645 uint8 ar = (src_argb[2] + src_argb[6] + src_argb[10] + src_argb[14]) >> 2;
690 dst_u[0] = RGBToU(ar, ag, ab); 646 dst_u[0] = RGBToU(ar, ag, ab);
691 dst_v[0] = RGBToV(ar, ag, ab); 647 dst_v[0] = RGBToV(ar, ag, ab);
692 src_argb += 16; 648 src_argb += 16;
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2633 dst_rgb565 += twidth * 2; 2589 dst_rgb565 += twidth * 2;
2634 width -= twidth; 2590 width -= twidth;
2635 } 2591 }
2636 } 2592 }
2637 #endif 2593 #endif
2638 2594
2639 #ifdef __cplusplus 2595 #ifdef __cplusplus
2640 } // extern "C" 2596 } // extern "C"
2641 } // namespace libyuv 2597 } // namespace libyuv
2642 #endif 2598 #endif
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