diff options
Diffstat (limited to 'packages/xorg-driver/xf86-video-omapfb/omapfb-neon.diff')
| -rw-r--r-- | packages/xorg-driver/xf86-video-omapfb/omapfb-neon.diff | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/packages/xorg-driver/xf86-video-omapfb/omapfb-neon.diff b/packages/xorg-driver/xf86-video-omapfb/omapfb-neon.diff new file mode 100644 index 0000000000..325ca66f0c --- /dev/null +++ b/packages/xorg-driver/xf86-video-omapfb/omapfb-neon.diff @@ -0,0 +1,146 @@ +--- /tmp/image-format-conversions.h 2009-02-03 10:18:04.000000000 +0100 ++++ git/src/image-format-conversions.h 2009-02-03 10:19:18.000000000 +0100 +@@ -30,6 +30,8 @@ + /* Basic C implementation of YV12/I420 to UYVY conversion */ + void uv12_to_uyvy(int w, int h, int y_pitch, int uv_pitch, uint8_t *y_p, uint8_t *u_p, uint8_t *v_p, uint8_t *dest); + ++/* NEON implementation of YV12/I420 to UYVY conversion */ ++void uv12_to_uyvy_neon(int w, int h, int y_pitch, int uv_pitch, uint8_t *y_p, uint8_t *u_p, uint8_t *v_p, uint8_t *dest); + + #endif /* __IMAGE_FORMAT_CONVERSIONS_H__ */ + +--- /tmp/image-format-conversions.c 2009-02-03 10:18:04.000000000 +0100 ++++ git/src/image-format-conversions.c 2009-02-03 10:16:47.000000000 +0100 +@@ -2,6 +2,7 @@ + * Copyright 2008 Kalle Vahlman, <zuh@iki.fi> + * Ilpo Ruotsalainen, <lonewolf@iki.fi> + * Tuomas Kulve, <tuomas.kulve@movial.com> ++ * Ian Rickards, <ian.rickards@arm.com> + * + * + * Permission to use, copy, modify, distribute and sell this software and its +@@ -89,3 +90,104 @@ + } + } + ++void uv12_to_uyvy_neon(int w, int h, int y_pitch, int uv_pitch, uint8_t *y_p, uint8_t *u_p, uint8_t *v_p, uint8_t *dest) ++{ ++ int x, y; ++ uint8_t *dest_even = dest; ++ uint8_t *dest_odd = dest + w * 2; ++ uint8_t *y_p_even = y_p; ++ uint8_t *y_p_odd = y_p + y_pitch; ++ ++ /*ErrorF("in uv12_to_uyvy, w: %d, pitch: %d\n", w, pitch);*/ ++ if (w<16) ++ { ++ for (y=0; y<h; y+=2) ++ { ++ for (x=0; x<w; x+=2) ++ { ++ /* Output two 2x1 macroblocks to form a 2x2 block from input */ ++ uint8_t u_val = *u_p++; ++ uint8_t v_val = *v_p++; ++ ++ /* Even row, first pixel */ ++ *dest_even++ = u_val; ++ *dest_even++ = *y_p_even++; ++ ++ /* Even row, second pixel */ ++ *dest_even++ = v_val; ++ *dest_even++ = *y_p_even++; ++ ++ /* Odd row, first pixel */ ++ *dest_odd++ = u_val; ++ *dest_odd++ = *y_p_odd++; ++ ++ /* Odd row, second pixel */ ++ *dest_odd++ = v_val; ++ *dest_odd++ = *y_p_odd++; ++ } ++ ++ dest_even += w * 2; ++ dest_odd += w * 2; ++ ++ u_p += ((uv_pitch << 1) - w) >> 1; ++ v_p += ((uv_pitch << 1) - w) >> 1; ++ ++ y_p_even += (y_pitch - w) + y_pitch; ++ y_p_odd += (y_pitch - w) + y_pitch; ++ } ++ } ++ else ++ { ++ for (y=0; y<h; y+=2) ++ { ++ x=w; ++ do { ++ // avoid using d8-d15 (q4-q7) aapcs callee-save registers ++ asm volatile ( ++ "1:\n\t" ++ "vld1.u8 {d0}, [%[u_p]]!\n\t" ++ "sub %[x],%[x],#16\n\t" ++ "cmp %[x],#16\n\t" ++ "vld1.u8 {d1}, [%[v_p]]!\n\t" ++ "vld1.u8 {q1}, [%[y_p_even]]!\n\t" ++ "vzip.u8 d0, d1\n\t" ++ "vld1.u8 {q2}, [%[y_p_odd]]!\n\t" ++ // use 2-element struct stores to zip up y with y&v ++ "vst2.u8 {q0,q1}, [%[dest_even]]!\n\t" ++ "vmov.u8 q1, q2\n\t" ++ "vst2.u8 {q0,q1}, [%[dest_odd]]!\n\t" ++ "bhs 1b\n\t" ++ : [u_p] "+r" (u_p), [v_p] "+r" (v_p), [y_p_even] "+r" (y_p_even), [y_p_odd] "+r" (y_p_odd), ++ [dest_even] "+r" (dest_even), [dest_odd] "+r" (dest_odd), ++ [x] "+r" (x) ++ : ++ : "cc", "memory", "d0","d1","d2","d3","d4","d5" ++ ); ++ if (x!=0) ++ { ++ // overlap final 16-pixel block to process requested width exactly ++ x = 16-x; ++ u_p -= x/2; ++ v_p -= x/2; ++ y_p_even -= x; ++ y_p_odd -= x; ++ dest_even -= x*2; ++ dest_odd -= x*2; ++ x = 16; ++ // do another 16-pixel block ++ } ++ } ++ while (x!=0); ++ ++ dest_even += w * 2; ++ dest_odd += w * 2; ++ ++ u_p += ((uv_pitch << 1) - w) >> 1; ++ v_p += ((uv_pitch << 1) - w) >> 1; ++ ++ y_p_even += (y_pitch - w) + y_pitch; ++ y_p_odd += (y_pitch - w) + y_pitch; ++ } ++ } ++} ++ +--- /tmp/omapfb-xv-generic.c 2009-02-03 10:52:18.000000000 +0100 ++++ git/src/omapfb-xv-generic.c 2009-02-03 10:52:24.000000000 +0100 +@@ -240,7 +240,7 @@ + uint8_t *yb = buf; + uint8_t *ub = yb + (src_y_pitch * src_h); + uint8_t *vb = ub + (src_uv_pitch * (src_h / 2)); +- uv12_to_uyvy(src_w & ~15, ++ uv12_to_uyvy_neon(src_w & ~15, + src_h & ~15, + src_y_pitch, + src_uv_pitch, +@@ -256,7 +256,7 @@ + uint8_t *yb = buf; + uint8_t *vb = yb + (src_y_pitch * src_h); + uint8_t *ub = vb + (src_uv_pitch * (src_h / 2)); +- uv12_to_uyvy(src_w & ~15, ++ uv12_to_uyvy_neon(src_w & ~15, + src_h & ~15, + src_y_pitch, + src_uv_pitch, |