diff options
Diffstat (limited to 'recipes/mplayer/files/yuv.S')
| -rw-r--r-- | recipes/mplayer/files/yuv.S | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/recipes/mplayer/files/yuv.S b/recipes/mplayer/files/yuv.S new file mode 100644 index 0000000000..3eaf284a61 --- /dev/null +++ b/recipes/mplayer/files/yuv.S @@ -0,0 +1,119 @@ +/* + Copyright (C) 2008 Mans Rullgard + + 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, sublicense, 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 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 + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + HOLDERS 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. + */ + + .fpu neon + .text + +@ yuv420_to_yuv422(uint8_t *yuv, uint8_t *y, uint8_t *u, uint8_t *v, +@ int w, int h, int yw, int cw, int dw) + +#define yuv r0 +#define y r1 +#define u r2 +#define v r3 +#define w r4 +#define h r5 +#define yw r6 +#define cw r7 +#define dw r8 + +#define tyuv r9 +#define ty r10 +#define tu r11 +#define tv r12 +#define i lr + + .global yuv420_to_yuv422 + .func yuv420_to_yuv422 +yuv420_to_yuv422: + push {r4-r11,lr} + add r4, sp, #36 + ldm r4, {r4-r8} + dmb +1: + mov tu, u + mov tv, v + vld1.64 {d2}, [u,:64], cw @ u0 + vld1.64 {d3}, [v,:64], cw @ v0 + mov tyuv, yuv + mov ty, y + vzip.8 d2, d3 @ u0v0 + mov i, #16 +2: + pld [y, #64] + vld1.64 {d0, d1}, [y,:128], yw @ y0 + pld [u, #64] + subs i, i, #4 + vld1.64 {d6}, [u,:64], cw @ u2 + pld [y, #64] + vld1.64 {d4, d5}, [y,:128], yw @ y1 + pld [v, #64] + vld1.64 {d7}, [v,:64], cw @ v2 + pld [y, #64] + vld1.64 {d16,d17}, [y,:128], yw @ y2 + vzip.8 d6, d7 @ u2v2 + pld [u, #64] + vld1.64 {d22}, [u,:64], cw @ u4 + pld [v, #64] + vld1.64 {d23}, [v,:64], cw @ v4 + pld [y, #64] + vld1.64 {d20,d21}, [y,:128], yw @ y3 + vmov q9, q3 @ u2v2 + vzip.8 d22, d23 @ u4v4 + vrhadd.u8 q3, q1, q3 @ u1v1 + vzip.8 q0, q1 @ y0u0y0v0 + vmov q12, q11 @ u4v4 + vzip.8 q2, q3 @ y1u1y1v1 + vrhadd.u8 q11, q9, q11 @ u3v3 + vst1.64 {d0-d3}, [yuv,:128], dw @ y0u0y0v0 + vzip.8 q8, q9 @ y2u2y2v2 + vst1.64 {d4-d7}, [yuv,:128], dw @ y1u1y1v1 + vzip.8 q10, q11 @ y3u3y3v3 + vst1.64 {d16-d19}, [yuv,:128], dw @ y2u2y2v2 + vmov q1, q12 + vst1.64 {d20-d23}, [yuv,:128], dw @ y3u3y3v3 + bgt 2b + + subs w, w, #16 + add yuv, tyuv, #32 + add y, ty, #16 + add u, tu, #8 + add v, tv, #8 + bgt 1b + + ldr w, [sp, #36] + subs h, h, #16 + add yuv, yuv, dw, lsl #4 + sub yuv, yuv, w, lsl #1 + add y, y, yw, lsl #4 + sub y, y, w + add u, u, cw, lsl #3 + sub u, u, w, asr #1 + add v, v, cw, lsl #3 + sub v, v, w, asr #1 + bgt 1b + + pop {r4-r11,pc} + .endfunc + |