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-rw-r--r--ffmpeg1/libswscale/ppc/Makefile3
-rw-r--r--ffmpeg1/libswscale/ppc/swscale_altivec.c328
-rw-r--r--ffmpeg1/libswscale/ppc/yuv2rgb_altivec.c854
-rw-r--r--ffmpeg1/libswscale/ppc/yuv2rgb_altivec.h51
-rw-r--r--ffmpeg1/libswscale/ppc/yuv2yuv_altivec.c194
5 files changed, 1430 insertions, 0 deletions
diff --git a/ffmpeg1/libswscale/ppc/Makefile b/ffmpeg1/libswscale/ppc/Makefile
new file mode 100644
index 0000000..018955b
--- /dev/null
+++ b/ffmpeg1/libswscale/ppc/Makefile
@@ -0,0 +1,3 @@
+ALTIVEC-OBJS += ppc/swscale_altivec.o \
+ ppc/yuv2rgb_altivec.o \
+ ppc/yuv2yuv_altivec.o \
diff --git a/ffmpeg1/libswscale/ppc/swscale_altivec.c b/ffmpeg1/libswscale/ppc/swscale_altivec.c
new file mode 100644
index 0000000..9ca2868
--- /dev/null
+++ b/ffmpeg1/libswscale/ppc/swscale_altivec.c
@@ -0,0 +1,328 @@
+/*
+ * AltiVec-enhanced yuv2yuvX
+ *
+ * Copyright (C) 2004 Romain Dolbeau <romain@dolbeau.org>
+ * based on the equivalent C code in swscale.c
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <inttypes.h>
+
+#include "config.h"
+#include "libswscale/swscale.h"
+#include "libswscale/swscale_internal.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "yuv2rgb_altivec.h"
+
+#define vzero vec_splat_s32(0)
+
+#define yuv2planeX_8(d1, d2, l1, src, x, perm, filter) do { \
+ vector signed short l2 = vec_ld(((x) << 1) + 16, src); \
+ vector signed short ls = vec_perm(l1, l2, perm); \
+ vector signed int i1 = vec_mule(filter, ls); \
+ vector signed int i2 = vec_mulo(filter, ls); \
+ vector signed int vf1 = vec_mergeh(i1, i2); \
+ vector signed int vf2 = vec_mergel(i1, i2); \
+ d1 = vec_add(d1, vf1); \
+ d2 = vec_add(d2, vf2); \
+ l1 = l2; \
+ } while (0)
+
+static void yuv2planeX_16_altivec(const int16_t *filter, int filterSize,
+ const int16_t **src, uint8_t *dest,
+ const uint8_t *dither, int offset, int x)
+{
+ register int i, j;
+ DECLARE_ALIGNED(16, int, val)[16];
+ vector signed int vo1, vo2, vo3, vo4;
+ vector unsigned short vs1, vs2;
+ vector unsigned char vf;
+ vector unsigned int altivec_vectorShiftInt19 =
+ vec_add(vec_splat_u32(10), vec_splat_u32(9));
+
+ for (i = 0; i < 16; i++)
+ val[i] = dither[(x + i + offset) & 7] << 12;
+
+ vo1 = vec_ld(0, val);
+ vo2 = vec_ld(16, val);
+ vo3 = vec_ld(32, val);
+ vo4 = vec_ld(48, val);
+
+ for (j = 0; j < filterSize; j++) {
+ vector signed short l1, vLumFilter = vec_ld(j << 1, filter);
+ vector unsigned char perm, perm0 = vec_lvsl(j << 1, filter);
+ vLumFilter = vec_perm(vLumFilter, vLumFilter, perm0);
+ vLumFilter = vec_splat(vLumFilter, 0); // lumFilter[j] is loaded 8 times in vLumFilter
+
+ perm = vec_lvsl(x << 1, src[j]);
+ l1 = vec_ld(x << 1, src[j]);
+
+ yuv2planeX_8(vo1, vo2, l1, src[j], x, perm, vLumFilter);
+ yuv2planeX_8(vo3, vo4, l1, src[j], x + 8, perm, vLumFilter);
+ }
+
+ vo1 = vec_sra(vo1, altivec_vectorShiftInt19);
+ vo2 = vec_sra(vo2, altivec_vectorShiftInt19);
+ vo3 = vec_sra(vo3, altivec_vectorShiftInt19);
+ vo4 = vec_sra(vo4, altivec_vectorShiftInt19);
+ vs1 = vec_packsu(vo1, vo2);
+ vs2 = vec_packsu(vo3, vo4);
+ vf = vec_packsu(vs1, vs2);
+ vec_st(vf, 0, dest);
+}
+
+static inline void yuv2planeX_u(const int16_t *filter, int filterSize,
+ const int16_t **src, uint8_t *dest, int dstW,
+ const uint8_t *dither, int offset, int x)
+{
+ int i, j;
+
+ for (i = x; i < dstW; i++) {
+ int t = dither[(i + offset) & 7] << 12;
+ for (j = 0; j < filterSize; j++)
+ t += src[j][i] * filter[j];
+ dest[i] = av_clip_uint8(t >> 19);
+ }
+}
+
+static void yuv2planeX_altivec(const int16_t *filter, int filterSize,
+ const int16_t **src, uint8_t *dest, int dstW,
+ const uint8_t *dither, int offset)
+{
+ int dst_u = -(uintptr_t)dest & 15;
+ int i;
+
+ yuv2planeX_u(filter, filterSize, src, dest, dst_u, dither, offset, 0);
+
+ for (i = dst_u; i < dstW - 15; i += 16)
+ yuv2planeX_16_altivec(filter, filterSize, src, dest + i, dither,
+ offset, i);
+
+ yuv2planeX_u(filter, filterSize, src, dest, dstW, dither, offset, i);
+}
+
+static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW,
+ const uint8_t *src, const int16_t *filter,
+ const int32_t *filterPos, int filterSize)
+{
+ register int i;
+ DECLARE_ALIGNED(16, int, tempo)[4];
+
+ if (filterSize % 4) {
+ for (i = 0; i < dstW; i++) {
+ register int j;
+ register int srcPos = filterPos[i];
+ register int val = 0;
+ for (j = 0; j < filterSize; j++)
+ val += ((int)src[srcPos + j]) * filter[filterSize * i + j];
+ dst[i] = FFMIN(val >> 7, (1 << 15) - 1);
+ }
+ } else
+ switch (filterSize) {
+ case 4:
+ for (i = 0; i < dstW; i++) {
+ register int srcPos = filterPos[i];
+
+ vector unsigned char src_v0 = vec_ld(srcPos, src);
+ vector unsigned char src_v1, src_vF;
+ vector signed short src_v, filter_v;
+ vector signed int val_vEven, val_s;
+ if ((((uintptr_t)src + srcPos) % 16) > 12) {
+ src_v1 = vec_ld(srcPos + 16, src);
+ }
+ src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src));
+
+ src_v = // vec_unpackh sign-extends...
+ (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF));
+ // now put our elements in the even slots
+ src_v = vec_mergeh(src_v, (vector signed short)vzero);
+
+ filter_v = vec_ld(i << 3, filter);
+ // The 3 above is 2 (filterSize == 4) + 1 (sizeof(short) == 2).
+
+ // The neat trick: We only care for half the elements,
+ // high or low depending on (i<<3)%16 (it's 0 or 8 here),
+ // and we're going to use vec_mule, so we choose
+ // carefully how to "unpack" the elements into the even slots.
+ if ((i << 3) % 16)
+ filter_v = vec_mergel(filter_v, (vector signed short)vzero);
+ else
+ filter_v = vec_mergeh(filter_v, (vector signed short)vzero);
+
+ val_vEven = vec_mule(src_v, filter_v);
+ val_s = vec_sums(val_vEven, vzero);
+ vec_st(val_s, 0, tempo);
+ dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
+ }
+ break;
+
+ case 8:
+ for (i = 0; i < dstW; i++) {
+ register int srcPos = filterPos[i];
+
+ vector unsigned char src_v0 = vec_ld(srcPos, src);
+ vector unsigned char src_v1, src_vF;
+ vector signed short src_v, filter_v;
+ vector signed int val_v, val_s;
+ if ((((uintptr_t)src + srcPos) % 16) > 8) {
+ src_v1 = vec_ld(srcPos + 16, src);
+ }
+ src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src));
+
+ src_v = // vec_unpackh sign-extends...
+ (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF));
+ filter_v = vec_ld(i << 4, filter);
+ // the 4 above is 3 (filterSize == 8) + 1 (sizeof(short) == 2)
+
+ val_v = vec_msums(src_v, filter_v, (vector signed int)vzero);
+ val_s = vec_sums(val_v, vzero);
+ vec_st(val_s, 0, tempo);
+ dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
+ }
+ break;
+
+ case 16:
+ for (i = 0; i < dstW; i++) {
+ register int srcPos = filterPos[i];
+
+ vector unsigned char src_v0 = vec_ld(srcPos, src);
+ vector unsigned char src_v1 = vec_ld(srcPos + 16, src);
+ vector unsigned char src_vF = vec_perm(src_v0, src_v1, vec_lvsl(srcPos, src));
+
+ vector signed short src_vA = // vec_unpackh sign-extends...
+ (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF));
+ vector signed short src_vB = // vec_unpackh sign-extends...
+ (vector signed short)(vec_mergel((vector unsigned char)vzero, src_vF));
+
+ vector signed short filter_v0 = vec_ld(i << 5, filter);
+ vector signed short filter_v1 = vec_ld((i << 5) + 16, filter);
+ // the 5 above are 4 (filterSize == 16) + 1 (sizeof(short) == 2)
+
+ vector signed int val_acc = vec_msums(src_vA, filter_v0, (vector signed int)vzero);
+ vector signed int val_v = vec_msums(src_vB, filter_v1, val_acc);
+
+ vector signed int val_s = vec_sums(val_v, vzero);
+
+ vec_st(val_s, 0, tempo);
+ dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
+ }
+ break;
+
+ default:
+ for (i = 0; i < dstW; i++) {
+ register int j;
+ register int srcPos = filterPos[i];
+
+ vector signed int val_s, val_v = (vector signed int)vzero;
+ vector signed short filter_v0R = vec_ld(i * 2 * filterSize, filter);
+ vector unsigned char permF = vec_lvsl((i * 2 * filterSize), filter);
+
+ vector unsigned char src_v0 = vec_ld(srcPos, src);
+ vector unsigned char permS = vec_lvsl(srcPos, src);
+
+ for (j = 0; j < filterSize - 15; j += 16) {
+ vector unsigned char src_v1 = vec_ld(srcPos + j + 16, src);
+ vector unsigned char src_vF = vec_perm(src_v0, src_v1, permS);
+
+ vector signed short src_vA = // vec_unpackh sign-extends...
+ (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF));
+ vector signed short src_vB = // vec_unpackh sign-extends...
+ (vector signed short)(vec_mergel((vector unsigned char)vzero, src_vF));
+
+ vector signed short filter_v1R = vec_ld((i * 2 * filterSize) + (j * 2) + 16, filter);
+ vector signed short filter_v2R = vec_ld((i * 2 * filterSize) + (j * 2) + 32, filter);
+ vector signed short filter_v0 = vec_perm(filter_v0R, filter_v1R, permF);
+ vector signed short filter_v1 = vec_perm(filter_v1R, filter_v2R, permF);
+
+ vector signed int val_acc = vec_msums(src_vA, filter_v0, val_v);
+ val_v = vec_msums(src_vB, filter_v1, val_acc);
+
+ filter_v0R = filter_v2R;
+ src_v0 = src_v1;
+ }
+
+ if (j < filterSize - 7) {
+ // loading src_v0 is useless, it's already done above
+ // vector unsigned char src_v0 = vec_ld(srcPos + j, src);
+ vector unsigned char src_v1, src_vF;
+ vector signed short src_v, filter_v1R, filter_v;
+ if ((((uintptr_t)src + srcPos) % 16) > 8) {
+ src_v1 = vec_ld(srcPos + j + 16, src);
+ }
+ src_vF = vec_perm(src_v0, src_v1, permS);
+
+ src_v = // vec_unpackh sign-extends...
+ (vector signed short)(vec_mergeh((vector unsigned char)vzero, src_vF));
+ // loading filter_v0R is useless, it's already done above
+ // vector signed short filter_v0R = vec_ld((i * 2 * filterSize) + j, filter);
+ filter_v1R = vec_ld((i * 2 * filterSize) + (j * 2) + 16, filter);
+ filter_v = vec_perm(filter_v0R, filter_v1R, permF);
+
+ val_v = vec_msums(src_v, filter_v, val_v);
+ }
+
+ val_s = vec_sums(val_v, vzero);
+
+ vec_st(val_s, 0, tempo);
+ dst[i] = FFMIN(tempo[3] >> 7, (1 << 15) - 1);
+ }
+ }
+}
+
+av_cold void ff_sws_init_swScale_altivec(SwsContext *c)
+{
+ enum AVPixelFormat dstFormat = c->dstFormat;
+
+ if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC))
+ return;
+
+ if (c->srcBpc == 8 && c->dstBpc <= 14) {
+ c->hyScale = c->hcScale = hScale_altivec_real;
+ }
+ if (!is16BPS(dstFormat) && !is9_OR_10BPS(dstFormat) &&
+ dstFormat != AV_PIX_FMT_NV12 && dstFormat != AV_PIX_FMT_NV21 &&
+ !c->alpPixBuf) {
+ c->yuv2planeX = yuv2planeX_altivec;
+ }
+
+ /* The following list of supported dstFormat values should
+ * match what's found in the body of ff_yuv2packedX_altivec() */
+ if (!(c->flags & (SWS_BITEXACT | SWS_FULL_CHR_H_INT)) && !c->alpPixBuf) {
+ switch (c->dstFormat) {
+ case AV_PIX_FMT_ABGR:
+ c->yuv2packedX = ff_yuv2abgr_X_altivec;
+ break;
+ case AV_PIX_FMT_BGRA:
+ c->yuv2packedX = ff_yuv2bgra_X_altivec;
+ break;
+ case AV_PIX_FMT_ARGB:
+ c->yuv2packedX = ff_yuv2argb_X_altivec;
+ break;
+ case AV_PIX_FMT_RGBA:
+ c->yuv2packedX = ff_yuv2rgba_X_altivec;
+ break;
+ case AV_PIX_FMT_BGR24:
+ c->yuv2packedX = ff_yuv2bgr24_X_altivec;
+ break;
+ case AV_PIX_FMT_RGB24:
+ c->yuv2packedX = ff_yuv2rgb24_X_altivec;
+ break;
+ }
+ }
+}
diff --git a/ffmpeg1/libswscale/ppc/yuv2rgb_altivec.c b/ffmpeg1/libswscale/ppc/yuv2rgb_altivec.c
new file mode 100644
index 0000000..a8501d9
--- /dev/null
+++ b/ffmpeg1/libswscale/ppc/yuv2rgb_altivec.c
@@ -0,0 +1,854 @@
+/*
+ * AltiVec acceleration for colorspace conversion
+ *
+ * copyright (C) 2004 Marc Hoffman <marc.hoffman@analog.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * Convert I420 YV12 to RGB in various formats,
+ * it rejects images that are not in 420 formats,
+ * it rejects images that don't have widths of multiples of 16,
+ * it rejects images that don't have heights of multiples of 2.
+ * Reject defers to C simulation code.
+ *
+ * Lots of optimizations to be done here.
+ *
+ * 1. Need to fix saturation code. I just couldn't get it to fly with packs
+ * and adds, so we currently use max/min to clip.
+ *
+ * 2. The inefficient use of chroma loading needs a bit of brushing up.
+ *
+ * 3. Analysis of pipeline stalls needs to be done. Use shark to identify
+ * pipeline stalls.
+ *
+ *
+ * MODIFIED to calculate coeffs from currently selected color space.
+ * MODIFIED core to be a macro where you specify the output format.
+ * ADDED UYVY conversion which is never called due to some thing in swscale.
+ * CORRECTED algorithim selection to be strict on input formats.
+ * ADDED runtime detection of AltiVec.
+ *
+ * ADDED altivec_yuv2packedX vertical scl + RGB converter
+ *
+ * March 27,2004
+ * PERFORMANCE ANALYSIS
+ *
+ * The C version uses 25% of the processor or ~250Mips for D1 video rawvideo
+ * used as test.
+ * The AltiVec version uses 10% of the processor or ~100Mips for D1 video
+ * same sequence.
+ *
+ * 720 * 480 * 30 ~10MPS
+ *
+ * so we have roughly 10 clocks per pixel. This is too high, something has
+ * to be wrong.
+ *
+ * OPTIMIZED clip codes to utilize vec_max and vec_packs removing the
+ * need for vec_min.
+ *
+ * OPTIMIZED DST OUTPUT cache/DMA controls. We are pretty much guaranteed to
+ * have the input video frame, it was just decompressed so it probably resides
+ * in L1 caches. However, we are creating the output video stream. This needs
+ * to use the DSTST instruction to optimize for the cache. We couple this with
+ * the fact that we are not going to be visiting the input buffer again so we
+ * mark it Least Recently Used. This shaves 25% of the processor cycles off.
+ *
+ * Now memcpy is the largest mips consumer in the system, probably due
+ * to the inefficient X11 stuff.
+ *
+ * GL libraries seem to be very slow on this machine 1.33Ghz PB running
+ * Jaguar, this is not the case for my 1Ghz PB. I thought it might be
+ * a versioning issue, however I have libGL.1.2.dylib for both
+ * machines. (We need to figure this out now.)
+ *
+ * GL2 libraries work now with patch for RGB32.
+ *
+ * NOTE: quartz vo driver ARGB32_to_RGB24 consumes 30% of the processor.
+ *
+ * Integrated luma prescaling adjustment for saturation/contrast/brightness
+ * adjustment.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include "config.h"
+#include "libswscale/rgb2rgb.h"
+#include "libswscale/swscale.h"
+#include "libswscale/swscale_internal.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/pixdesc.h"
+#include "yuv2rgb_altivec.h"
+
+#undef PROFILE_THE_BEAST
+#undef INC_SCALING
+
+typedef unsigned char ubyte;
+typedef signed char sbyte;
+
+/* RGB interleaver, 16 planar pels 8-bit samples per channel in
+ * homogeneous vector registers x0,x1,x2 are interleaved with the
+ * following technique:
+ *
+ * o0 = vec_mergeh(x0, x1);
+ * o1 = vec_perm(o0, x2, perm_rgb_0);
+ * o2 = vec_perm(o0, x2, perm_rgb_1);
+ * o3 = vec_mergel(x0, x1);
+ * o4 = vec_perm(o3, o2, perm_rgb_2);
+ * o5 = vec_perm(o3, o2, perm_rgb_3);
+ *
+ * perm_rgb_0: o0(RG).h v1(B) --> o1*
+ * 0 1 2 3 4
+ * rgbr|gbrg|brgb|rgbr
+ * 0010 0100 1001 0010
+ * 0102 3145 2673 894A
+ *
+ * perm_rgb_1: o0(RG).h v1(B) --> o2
+ * 0 1 2 3 4
+ * gbrg|brgb|bbbb|bbbb
+ * 0100 1001 1111 1111
+ * B5CD 6EF7 89AB CDEF
+ *
+ * perm_rgb_2: o3(RG).l o2(rgbB.l) --> o4*
+ * 0 1 2 3 4
+ * gbrg|brgb|rgbr|gbrg
+ * 1111 1111 0010 0100
+ * 89AB CDEF 0182 3945
+ *
+ * perm_rgb_2: o3(RG).l o2(rgbB.l) ---> o5*
+ * 0 1 2 3 4
+ * brgb|rgbr|gbrg|brgb
+ * 1001 0010 0100 1001
+ * a67b 89cA BdCD eEFf
+ *
+ */
+static const vector unsigned char
+ perm_rgb_0 = { 0x00, 0x01, 0x10, 0x02, 0x03, 0x11, 0x04, 0x05,
+ 0x12, 0x06, 0x07, 0x13, 0x08, 0x09, 0x14, 0x0a },
+ perm_rgb_1 = { 0x0b, 0x15, 0x0c, 0x0d, 0x16, 0x0e, 0x0f, 0x17,
+ 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f },
+ perm_rgb_2 = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+ 0x00, 0x01, 0x18, 0x02, 0x03, 0x19, 0x04, 0x05 },
+ perm_rgb_3 = { 0x1a, 0x06, 0x07, 0x1b, 0x08, 0x09, 0x1c, 0x0a,
+ 0x0b, 0x1d, 0x0c, 0x0d, 0x1e, 0x0e, 0x0f, 0x1f };
+
+#define vec_merge3(x2, x1, x0, y0, y1, y2) \
+ do { \
+ __typeof__(x0) o0, o2, o3; \
+ o0 = vec_mergeh(x0, x1); \
+ y0 = vec_perm(o0, x2, perm_rgb_0); \
+ o2 = vec_perm(o0, x2, perm_rgb_1); \
+ o3 = vec_mergel(x0, x1); \
+ y1 = vec_perm(o3, o2, perm_rgb_2); \
+ y2 = vec_perm(o3, o2, perm_rgb_3); \
+ } while (0)
+
+#define vec_mstbgr24(x0, x1, x2, ptr) \
+ do { \
+ __typeof__(x0) _0, _1, _2; \
+ vec_merge3(x0, x1, x2, _0, _1, _2); \
+ vec_st(_0, 0, ptr++); \
+ vec_st(_1, 0, ptr++); \
+ vec_st(_2, 0, ptr++); \
+ } while (0)
+
+#define vec_mstrgb24(x0, x1, x2, ptr) \
+ do { \
+ __typeof__(x0) _0, _1, _2; \
+ vec_merge3(x2, x1, x0, _0, _1, _2); \
+ vec_st(_0, 0, ptr++); \
+ vec_st(_1, 0, ptr++); \
+ vec_st(_2, 0, ptr++); \
+ } while (0)
+
+/* pack the pixels in rgb0 format
+ * msb R
+ * lsb 0
+ */
+#define vec_mstrgb32(T, x0, x1, x2, x3, ptr) \
+ do { \
+ T _0, _1, _2, _3; \
+ _0 = vec_mergeh(x0, x1); \
+ _1 = vec_mergeh(x2, x3); \
+ _2 = (T) vec_mergeh((vector unsigned short) _0, \
+ (vector unsigned short) _1); \
+ _3 = (T) vec_mergel((vector unsigned short) _0, \
+ (vector unsigned short) _1); \
+ vec_st(_2, 0 * 16, (T *) ptr); \
+ vec_st(_3, 1 * 16, (T *) ptr); \
+ _0 = vec_mergel(x0, x1); \
+ _1 = vec_mergel(x2, x3); \
+ _2 = (T) vec_mergeh((vector unsigned short) _0, \
+ (vector unsigned short) _1); \
+ _3 = (T) vec_mergel((vector unsigned short) _0, \
+ (vector unsigned short) _1); \
+ vec_st(_2, 2 * 16, (T *) ptr); \
+ vec_st(_3, 3 * 16, (T *) ptr); \
+ ptr += 4; \
+ } while (0)
+
+/*
+ * 1 0 1.4021 | | Y |
+ * 1 -0.3441 -0.7142 |x| Cb|
+ * 1 1.7718 0 | | Cr|
+ *
+ *
+ * Y: [-128 127]
+ * Cb/Cr : [-128 127]
+ *
+ * typical YUV conversion works on Y: 0-255 this version has been
+ * optimized for JPEG decoding.
+ */
+
+#define vec_unh(x) \
+ (vector signed short) \
+ vec_perm(x, (__typeof__(x)) { 0 }, \
+ ((vector unsigned char) { \
+ 0x10, 0x00, 0x10, 0x01, 0x10, 0x02, 0x10, 0x03, \
+ 0x10, 0x04, 0x10, 0x05, 0x10, 0x06, 0x10, 0x07 }))
+
+#define vec_unl(x) \
+ (vector signed short) \
+ vec_perm(x, (__typeof__(x)) { 0 }, \
+ ((vector unsigned char) { \
+ 0x10, 0x08, 0x10, 0x09, 0x10, 0x0A, 0x10, 0x0B, \
+ 0x10, 0x0C, 0x10, 0x0D, 0x10, 0x0E, 0x10, 0x0F }))
+
+#define vec_clip_s16(x) \
+ vec_max(vec_min(x, ((vector signed short) { \
+ 235, 235, 235, 235, 235, 235, 235, 235 })), \
+ ((vector signed short) { 16, 16, 16, 16, 16, 16, 16, 16 }))
+
+#define vec_packclp(x, y) \
+ (vector unsigned char) \
+ vec_packs((vector unsigned short) \
+ vec_max(x, ((vector signed short) { 0 })), \
+ (vector unsigned short) \
+ vec_max(y, ((vector signed short) { 0 })))
+
+//#define out_pixels(a, b, c, ptr) vec_mstrgb32(__typeof__(a), ((__typeof__(a)) { 255 }), a, a, a, ptr)
+
+static inline void cvtyuvtoRGB(SwsContext *c, vector signed short Y,
+ vector signed short U, vector signed short V,
+ vector signed short *R, vector signed short *G,
+ vector signed short *B)
+{
+ vector signed short vx, ux, uvx;
+
+ Y = vec_mradds(Y, c->CY, c->OY);
+ U = vec_sub(U, (vector signed short)
+ vec_splat((vector signed short) { 128 }, 0));
+ V = vec_sub(V, (vector signed short)
+ vec_splat((vector signed short) { 128 }, 0));
+
+ // ux = (CBU * (u << c->CSHIFT) + 0x4000) >> 15;
+ ux = vec_sl(U, c->CSHIFT);
+ *B = vec_mradds(ux, c->CBU, Y);
+
+ // vx = (CRV * (v << c->CSHIFT) + 0x4000) >> 15;
+ vx = vec_sl(V, c->CSHIFT);
+ *R = vec_mradds(vx, c->CRV, Y);
+
+ // uvx = ((CGU * u) + (CGV * v)) >> 15;
+ uvx = vec_mradds(U, c->CGU, Y);
+ *G = vec_mradds(V, c->CGV, uvx);
+}
+
+/*
+ * ------------------------------------------------------------------------------
+ * CS converters
+ * ------------------------------------------------------------------------------
+ */
+
+#define DEFCSP420_CVT(name, out_pixels) \
+static int altivec_ ## name(SwsContext *c, const unsigned char **in, \
+ int *instrides, int srcSliceY, int srcSliceH, \
+ unsigned char **oplanes, int *outstrides) \
+{ \
+ int w = c->srcW; \
+ int h = srcSliceH; \
+ int i, j; \
+ int instrides_scl[3]; \
+ vector unsigned char y0, y1; \
+ \
+ vector signed char u, v; \
+ \
+ vector signed short Y0, Y1, Y2, Y3; \
+ vector signed short U, V; \
+ vector signed short vx, ux, uvx; \
+ vector signed short vx0, ux0, uvx0; \
+ vector signed short vx1, ux1, uvx1; \
+ vector signed short R0, G0, B0; \
+ vector signed short R1, G1, B1; \
+ vector unsigned char R, G, B; \
+ \
+ const vector unsigned char *y1ivP, *y2ivP, *uivP, *vivP; \
+ vector unsigned char align_perm; \
+ \
+ vector signed short lCY = c->CY; \
+ vector signed short lOY = c->OY; \
+ vector signed short lCRV = c->CRV; \
+ vector signed short lCBU = c->CBU; \
+ vector signed short lCGU = c->CGU; \
+ vector signed short lCGV = c->CGV; \
+ vector unsigned short lCSHIFT = c->CSHIFT; \
+ \
+ const ubyte *y1i = in[0]; \
+ const ubyte *y2i = in[0] + instrides[0]; \
+ const ubyte *ui = in[1]; \
+ const ubyte *vi = in[2]; \
+ \
+ vector unsigned char *oute, *outo; \
+ \
+ /* loop moves y{1, 2}i by w */ \
+ instrides_scl[0] = instrides[0] * 2 - w; \
+ /* loop moves ui by w / 2 */ \
+ instrides_scl[1] = instrides[1] - w / 2; \
+ /* loop moves vi by w / 2 */ \
+ instrides_scl[2] = instrides[2] - w / 2; \
+ \
+ for (i = 0; i < h / 2; i++) { \
+ oute = (vector unsigned char *)(oplanes[0] + outstrides[0] * \
+ (srcSliceY + i * 2)); \
+ outo = oute + (outstrides[0] >> 4); \
+ vec_dstst(outo, (0x02000002 | (((w * 3 + 32) / 32) << 16)), 0); \
+ vec_dstst(oute, (0x02000002 | (((w * 3 + 32) / 32) << 16)), 1); \
+ \
+ for (j = 0; j < w / 16; j++) { \
+ y1ivP = (const vector unsigned char *) y1i; \
+ y2ivP = (const vector unsigned char *) y2i; \
+ uivP = (const vector unsigned char *) ui; \
+ vivP = (const vector unsigned char *) vi; \
+ \
+ align_perm = vec_lvsl(0, y1i); \
+ y0 = (vector unsigned char) \
+ vec_perm(y1ivP[0], y1ivP[1], align_perm); \
+ \
+ align_perm = vec_lvsl(0, y2i); \
+ y1 = (vector unsigned char) \
+ vec_perm(y2ivP[0], y2ivP[1], align_perm); \
+ \
+ align_perm = vec_lvsl(0, ui); \
+ u = (vector signed char) \
+ vec_perm(uivP[0], uivP[1], align_perm); \
+ \
+ align_perm = vec_lvsl(0, vi); \
+ v = (vector signed char) \
+ vec_perm(vivP[0], vivP[1], align_perm); \
+ \
+ u = (vector signed char) \
+ vec_sub(u, \
+ (vector signed char) \
+ vec_splat((vector signed char) { 128 }, 0)); \
+ v = (vector signed char) \
+ vec_sub(v, \
+ (vector signed char) \
+ vec_splat((vector signed char) { 128 }, 0)); \
+ \
+ U = vec_unpackh(u); \
+ V = vec_unpackh(v); \
+ \
+ Y0 = vec_unh(y0); \
+ Y1 = vec_unl(y0); \
+ Y2 = vec_unh(y1); \
+ Y3 = vec_unl(y1); \
+ \
+ Y0 = vec_mradds(Y0, lCY, lOY); \
+ Y1 = vec_mradds(Y1, lCY, lOY); \
+ Y2 = vec_mradds(Y2, lCY, lOY); \
+ Y3 = vec_mradds(Y3, lCY, lOY); \
+ \
+ /* ux = (CBU * (u << CSHIFT) + 0x4000) >> 15 */ \
+ ux = vec_sl(U, lCSHIFT); \
+ ux = vec_mradds(ux, lCBU, (vector signed short) { 0 }); \
+ ux0 = vec_mergeh(ux, ux); \
+ ux1 = vec_mergel(ux, ux); \
+ \
+ /* vx = (CRV * (v << CSHIFT) + 0x4000) >> 15; */ \
+ vx = vec_sl(V, lCSHIFT); \
+ vx = vec_mradds(vx, lCRV, (vector signed short) { 0 }); \
+ vx0 = vec_mergeh(vx, vx); \
+ vx1 = vec_mergel(vx, vx); \
+ \
+ /* uvx = ((CGU * u) + (CGV * v)) >> 15 */ \
+ uvx = vec_mradds(U, lCGU, (vector signed short) { 0 }); \
+ uvx = vec_mradds(V, lCGV, uvx); \
+ uvx0 = vec_mergeh(uvx, uvx); \
+ uvx1 = vec_mergel(uvx, uvx); \
+ \
+ R0 = vec_add(Y0, vx0); \
+ G0 = vec_add(Y0, uvx0); \
+ B0 = vec_add(Y0, ux0); \
+ R1 = vec_add(Y1, vx1); \
+ G1 = vec_add(Y1, uvx1); \
+ B1 = vec_add(Y1, ux1); \
+ \
+ R = vec_packclp(R0, R1); \
+ G = vec_packclp(G0, G1); \
+ B = vec_packclp(B0, B1); \
+ \
+ out_pixels(R, G, B, oute); \
+ \
+ R0 = vec_add(Y2, vx0); \
+ G0 = vec_add(Y2, uvx0); \
+ B0 = vec_add(Y2, ux0); \
+ R1 = vec_add(Y3, vx1); \
+ G1 = vec_add(Y3, uvx1); \
+ B1 = vec_add(Y3, ux1); \
+ R = vec_packclp(R0, R1); \
+ G = vec_packclp(G0, G1); \
+ B = vec_packclp(B0, B1); \
+ \
+ \
+ out_pixels(R, G, B, outo); \
+ \
+ y1i += 16; \
+ y2i += 16; \
+ ui += 8; \
+ vi += 8; \
+ } \
+ \
+ ui += instrides_scl[1]; \
+ vi += instrides_scl[2]; \
+ y1i += instrides_scl[0]; \
+ y2i += instrides_scl[0]; \
+ } \
+ return srcSliceH; \
+}
+
+#define out_abgr(a, b, c, ptr) \
+ vec_mstrgb32(__typeof__(a), ((__typeof__(a)) { 255 }), c, b, a, ptr)
+#define out_bgra(a, b, c, ptr) \
+ vec_mstrgb32(__typeof__(a), c, b, a, ((__typeof__(a)) { 255 }), ptr)
+#define out_rgba(a, b, c, ptr) \
+ vec_mstrgb32(__typeof__(a), a, b, c, ((__typeof__(a)) { 255 }), ptr)
+#define out_argb(a, b, c, ptr) \
+ vec_mstrgb32(__typeof__(a), ((__typeof__(a)) { 255 }), a, b, c, ptr)
+#define out_rgb24(a, b, c, ptr) vec_mstrgb24(a, b, c, ptr)
+#define out_bgr24(a, b, c, ptr) vec_mstbgr24(a, b, c, ptr)
+
+DEFCSP420_CVT(yuv2_abgr, out_abgr)
+DEFCSP420_CVT(yuv2_bgra, out_bgra)
+DEFCSP420_CVT(yuv2_rgba, out_rgba)
+DEFCSP420_CVT(yuv2_argb, out_argb)
+DEFCSP420_CVT(yuv2_rgb24, out_rgb24)
+DEFCSP420_CVT(yuv2_bgr24, out_bgr24)
+
+// uyvy|uyvy|uyvy|uyvy
+// 0123 4567 89ab cdef
+static const vector unsigned char
+ demux_u = { 0x10, 0x00, 0x10, 0x00,
+ 0x10, 0x04, 0x10, 0x04,
+ 0x10, 0x08, 0x10, 0x08,
+ 0x10, 0x0c, 0x10, 0x0c },
+ demux_v = { 0x10, 0x02, 0x10, 0x02,
+ 0x10, 0x06, 0x10, 0x06,
+ 0x10, 0x0A, 0x10, 0x0A,
+ 0x10, 0x0E, 0x10, 0x0E },
+ demux_y = { 0x10, 0x01, 0x10, 0x03,
+ 0x10, 0x05, 0x10, 0x07,
+ 0x10, 0x09, 0x10, 0x0B,
+ 0x10, 0x0D, 0x10, 0x0F };
+
+/*
+ * this is so I can play live CCIR raw video
+ */
+static int altivec_uyvy_rgb32(SwsContext *c, const unsigned char **in,
+ int *instrides, int srcSliceY, int srcSliceH,
+ unsigned char **oplanes, int *outstrides)
+{
+ int w = c->srcW;
+ int h = srcSliceH;
+ int i, j;
+ vector unsigned char uyvy;
+ vector signed short Y, U, V;
+ vector signed short R0, G0, B0, R1, G1, B1;
+ vector unsigned char R, G, B;
+ vector unsigned char *out;
+ const ubyte *img;
+
+ img = in[0];
+ out = (vector unsigned char *) (oplanes[0] + srcSliceY * outstrides[0]);
+
+ for (i = 0; i < h; i++)
+ for (j = 0; j < w / 16; j++) {
+ uyvy = vec_ld(0, img);
+
+ U = (vector signed short)
+ vec_perm(uyvy, (vector unsigned char) { 0 }, demux_u);
+ V = (vector signed short)
+ vec_perm(uyvy, (vector unsigned char) { 0 }, demux_v);
+ Y = (vector signed short)
+ vec_perm(uyvy, (vector unsigned char) { 0 }, demux_y);
+
+ cvtyuvtoRGB(c, Y, U, V, &R0, &G0, &B0);
+
+ uyvy = vec_ld(16, img);
+
+ U = (vector signed short)
+ vec_perm(uyvy, (vector unsigned char) { 0 }, demux_u);
+ V = (vector signed short)
+ vec_perm(uyvy, (vector unsigned char) { 0 }, demux_v);
+ Y = (vector signed short)
+ vec_perm(uyvy, (vector unsigned char) { 0 }, demux_y);
+
+ cvtyuvtoRGB(c, Y, U, V, &R1, &G1, &B1);
+
+ R = vec_packclp(R0, R1);
+ G = vec_packclp(G0, G1);
+ B = vec_packclp(B0, B1);
+
+ // vec_mstbgr24 (R,G,B, out);
+ out_rgba(R, G, B, out);
+
+ img += 32;
+ }
+ return srcSliceH;
+}
+
+/* Ok currently the acceleration routine only supports
+ * inputs of widths a multiple of 16
+ * and heights a multiple 2
+ *
+ * So we just fall back to the C codes for this.
+ */
+av_cold SwsFunc ff_yuv2rgb_init_altivec(SwsContext *c)
+{
+ if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC))
+ return NULL;
+
+ /*
+ * and this seems not to matter too much I tried a bunch of
+ * videos with abnormal widths and MPlayer crashes elsewhere.
+ * mplayer -vo x11 -rawvideo on:w=350:h=240 raw-350x240.eyuv
+ * boom with X11 bad match.
+ *
+ */
+ if ((c->srcW & 0xf) != 0)
+ return NULL;
+
+ switch (c->srcFormat) {
+ case AV_PIX_FMT_YUV410P:
+ case AV_PIX_FMT_YUV420P:
+ /*case IMGFMT_CLPL: ??? */
+ case AV_PIX_FMT_GRAY8:
+ case AV_PIX_FMT_NV12:
+ case AV_PIX_FMT_NV21:
+ if ((c->srcH & 0x1) != 0)
+ return NULL;
+
+ switch (c->dstFormat) {
+ case AV_PIX_FMT_RGB24:
+ av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space RGB24\n");
+ return altivec_yuv2_rgb24;
+ case AV_PIX_FMT_BGR24:
+ av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space BGR24\n");
+ return altivec_yuv2_bgr24;
+ case AV_PIX_FMT_ARGB:
+ av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space ARGB\n");
+ return altivec_yuv2_argb;
+ case AV_PIX_FMT_ABGR:
+ av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space ABGR\n");
+ return altivec_yuv2_abgr;
+ case AV_PIX_FMT_RGBA:
+ av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space RGBA\n");
+ return altivec_yuv2_rgba;
+ case AV_PIX_FMT_BGRA:
+ av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space BGRA\n");
+ return altivec_yuv2_bgra;
+ default: return NULL;
+ }
+ break;
+
+ case AV_PIX_FMT_UYVY422:
+ switch (c->dstFormat) {
+ case AV_PIX_FMT_BGR32:
+ av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space UYVY -> RGB32\n");
+ return altivec_uyvy_rgb32;
+ default: return NULL;
+ }
+ break;
+ }
+ return NULL;
+}
+
+av_cold void ff_yuv2rgb_init_tables_altivec(SwsContext *c,
+ const int inv_table[4],
+ int brightness,
+ int contrast,
+ int saturation)
+{
+ union {
+ DECLARE_ALIGNED(16, signed short, tmp)[8];
+ vector signed short vec;
+ } buf;
+
+ buf.tmp[0] = ((0xffffLL) * contrast >> 8) >> 9; // cy
+ buf.tmp[1] = -256 * brightness; // oy
+ buf.tmp[2] = (inv_table[0] >> 3) * (contrast >> 16) * (saturation >> 16); // crv
+ buf.tmp[3] = (inv_table[1] >> 3) * (contrast >> 16) * (saturation >> 16); // cbu
+ buf.tmp[4] = -((inv_table[2] >> 1) * (contrast >> 16) * (saturation >> 16)); // cgu
+ buf.tmp[5] = -((inv_table[3] >> 1) * (contrast >> 16) * (saturation >> 16)); // cgv
+
+ c->CSHIFT = (vector unsigned short) vec_splat_u16(2);
+ c->CY = vec_splat((vector signed short) buf.vec, 0);
+ c->OY = vec_splat((vector signed short) buf.vec, 1);
+ c->CRV = vec_splat((vector signed short) buf.vec, 2);
+ c->CBU = vec_splat((vector signed short) buf.vec, 3);
+ c->CGU = vec_splat((vector signed short) buf.vec, 4);
+ c->CGV = vec_splat((vector signed short) buf.vec, 5);
+ return;
+}
+
+static av_always_inline void ff_yuv2packedX_altivec(SwsContext *c,
+ const int16_t *lumFilter,
+ const int16_t **lumSrc,
+ int lumFilterSize,
+ const int16_t *chrFilter,
+ const int16_t **chrUSrc,
+ const int16_t **chrVSrc,
+ int chrFilterSize,
+ const int16_t **alpSrc,
+ uint8_t *dest,
+ int dstW, int dstY,
+ enum AVPixelFormat target)
+{
+ int i, j;
+ vector signed short X, X0, X1, Y0, U0, V0, Y1, U1, V1, U, V;
+ vector signed short R0, G0, B0, R1, G1, B1;
+
+ vector unsigned char R, G, B;
+ vector unsigned char *out, *nout;
+
+ vector signed short RND = vec_splat_s16(1 << 3);
+ vector unsigned short SCL = vec_splat_u16(4);
+ DECLARE_ALIGNED(16, unsigned int, scratch)[16];
+
+ vector signed short *YCoeffs, *CCoeffs;
+
+ YCoeffs = c->vYCoeffsBank + dstY * lumFilterSize;
+ CCoeffs = c->vCCoeffsBank + dstY * chrFilterSize;
+
+ out = (vector unsigned char *) dest;
+
+ for (i = 0; i < dstW; i += 16) {
+ Y0 = RND;
+ Y1 = RND;
+ /* extract 16 coeffs from lumSrc */
+ for (j = 0; j < lumFilterSize; j++) {
+ X0 = vec_ld(0, &lumSrc[j][i]);
+ X1 = vec_ld(16, &lumSrc[j][i]);
+ Y0 = vec_mradds(X0, YCoeffs[j], Y0);
+ Y1 = vec_mradds(X1, YCoeffs[j], Y1);
+ }
+
+ U = RND;
+ V = RND;
+ /* extract 8 coeffs from U,V */
+ for (j = 0; j < chrFilterSize; j++) {
+ X = vec_ld(0, &chrUSrc[j][i / 2]);
+ U = vec_mradds(X, CCoeffs[j], U);
+ X = vec_ld(0, &chrVSrc[j][i / 2]);
+ V = vec_mradds(X, CCoeffs[j], V);
+ }
+
+ /* scale and clip signals */
+ Y0 = vec_sra(Y0, SCL);
+ Y1 = vec_sra(Y1, SCL);
+ U = vec_sra(U, SCL);
+ V = vec_sra(V, SCL);
+
+ Y0 = vec_clip_s16(Y0);
+ Y1 = vec_clip_s16(Y1);
+ U = vec_clip_s16(U);
+ V = vec_clip_s16(V);
+
+ /* now we have
+ * Y0 = y0 y1 y2 y3 y4 y5 y6 y7 Y1 = y8 y9 y10 y11 y12 y13 y14 y15
+ * U = u0 u1 u2 u3 u4 u5 u6 u7 V = v0 v1 v2 v3 v4 v5 v6 v7
+ *
+ * Y0 = y0 y1 y2 y3 y4 y5 y6 y7 Y1 = y8 y9 y10 y11 y12 y13 y14 y15
+ * U0 = u0 u0 u1 u1 u2 u2 u3 u3 U1 = u4 u4 u5 u5 u6 u6 u7 u7
+ * V0 = v0 v0 v1 v1 v2 v2 v3 v3 V1 = v4 v4 v5 v5 v6 v6 v7 v7
+ */
+
+ U0 = vec_mergeh(U, U);
+ V0 = vec_mergeh(V, V);
+
+ U1 = vec_mergel(U, U);
+ V1 = vec_mergel(V, V);
+
+ cvtyuvtoRGB(c, Y0, U0, V0, &R0, &G0, &B0);
+ cvtyuvtoRGB(c, Y1, U1, V1, &R1, &G1, &B1);
+
+ R = vec_packclp(R0, R1);
+ G = vec_packclp(G0, G1);
+ B = vec_packclp(B0, B1);
+
+ switch (target) {
+ case AV_PIX_FMT_ABGR:
+ out_abgr(R, G, B, out);
+ break;
+ case AV_PIX_FMT_BGRA:
+ out_bgra(R, G, B, out);
+ break;
+ case AV_PIX_FMT_RGBA:
+ out_rgba(R, G, B, out);
+ break;
+ case AV_PIX_FMT_ARGB:
+ out_argb(R, G, B, out);
+ break;
+ case AV_PIX_FMT_RGB24:
+ out_rgb24(R, G, B, out);
+ break;
+ case AV_PIX_FMT_BGR24:
+ out_bgr24(R, G, B, out);
+ break;
+ default:
+ {
+ /* If this is reached, the caller should have called yuv2packedXinC
+ * instead. */
+ static int printed_error_message;
+ if (!printed_error_message) {
+ av_log(c, AV_LOG_ERROR,
+ "altivec_yuv2packedX doesn't support %s output\n",
+ av_get_pix_fmt_name(c->dstFormat));
+ printed_error_message = 1;
+ }
+ return;
+ }
+ }
+ }
+
+ if (i < dstW) {
+ i -= 16;
+
+ Y0 = RND;
+ Y1 = RND;
+ /* extract 16 coeffs from lumSrc */
+ for (j = 0; j < lumFilterSize; j++) {
+ X0 = vec_ld(0, &lumSrc[j][i]);
+ X1 = vec_ld(16, &lumSrc[j][i]);
+ Y0 = vec_mradds(X0, YCoeffs[j], Y0);
+ Y1 = vec_mradds(X1, YCoeffs[j], Y1);
+ }
+
+ U = RND;
+ V = RND;
+ /* extract 8 coeffs from U,V */
+ for (j = 0; j < chrFilterSize; j++) {
+ X = vec_ld(0, &chrUSrc[j][i / 2]);
+ U = vec_mradds(X, CCoeffs[j], U);
+ X = vec_ld(0, &chrVSrc[j][i / 2]);
+ V = vec_mradds(X, CCoeffs[j], V);
+ }
+
+ /* scale and clip signals */
+ Y0 = vec_sra(Y0, SCL);
+ Y1 = vec_sra(Y1, SCL);
+ U = vec_sra(U, SCL);
+ V = vec_sra(V, SCL);
+
+ Y0 = vec_clip_s16(Y0);
+ Y1 = vec_clip_s16(Y1);
+ U = vec_clip_s16(U);
+ V = vec_clip_s16(V);
+
+ /* now we have
+ * Y0 = y0 y1 y2 y3 y4 y5 y6 y7 Y1 = y8 y9 y10 y11 y12 y13 y14 y15
+ * U = u0 u1 u2 u3 u4 u5 u6 u7 V = v0 v1 v2 v3 v4 v5 v6 v7
+ *
+ * Y0 = y0 y1 y2 y3 y4 y5 y6 y7 Y1 = y8 y9 y10 y11 y12 y13 y14 y15
+ * U0 = u0 u0 u1 u1 u2 u2 u3 u3 U1 = u4 u4 u5 u5 u6 u6 u7 u7
+ * V0 = v0 v0 v1 v1 v2 v2 v3 v3 V1 = v4 v4 v5 v5 v6 v6 v7 v7
+ */
+
+ U0 = vec_mergeh(U, U);
+ V0 = vec_mergeh(V, V);
+
+ U1 = vec_mergel(U, U);
+ V1 = vec_mergel(V, V);
+
+ cvtyuvtoRGB(c, Y0, U0, V0, &R0, &G0, &B0);
+ cvtyuvtoRGB(c, Y1, U1, V1, &R1, &G1, &B1);
+
+ R = vec_packclp(R0, R1);
+ G = vec_packclp(G0, G1);
+ B = vec_packclp(B0, B1);
+
+ nout = (vector unsigned char *) scratch;
+ switch (target) {
+ case AV_PIX_FMT_ABGR:
+ out_abgr(R, G, B, nout);
+ break;
+ case AV_PIX_FMT_BGRA:
+ out_bgra(R, G, B, nout);
+ break;
+ case AV_PIX_FMT_RGBA:
+ out_rgba(R, G, B, nout);
+ break;
+ case AV_PIX_FMT_ARGB:
+ out_argb(R, G, B, nout);
+ break;
+ case AV_PIX_FMT_RGB24:
+ out_rgb24(R, G, B, nout);
+ break;
+ case AV_PIX_FMT_BGR24:
+ out_bgr24(R, G, B, nout);
+ break;
+ default:
+ /* Unreachable, I think. */
+ av_log(c, AV_LOG_ERROR,
+ "altivec_yuv2packedX doesn't support %s output\n",
+ av_get_pix_fmt_name(c->dstFormat));
+ return;
+ }
+
+ memcpy(&((uint32_t *) dest)[i], scratch, (dstW - i) / 4);
+ }
+}
+
+#define YUV2PACKEDX_WRAPPER(suffix, pixfmt) \
+void ff_yuv2 ## suffix ## _X_altivec(SwsContext *c, \
+ const int16_t *lumFilter, \
+ const int16_t **lumSrc, \
+ int lumFilterSize, \
+ const int16_t *chrFilter, \
+ const int16_t **chrUSrc, \
+ const int16_t **chrVSrc, \
+ int chrFilterSize, \
+ const int16_t **alpSrc, \
+ uint8_t *dest, int dstW, int dstY) \
+{ \
+ ff_yuv2packedX_altivec(c, lumFilter, lumSrc, lumFilterSize, \
+ chrFilter, chrUSrc, chrVSrc, \
+ chrFilterSize, alpSrc, \
+ dest, dstW, dstY, pixfmt); \
+}
+
+YUV2PACKEDX_WRAPPER(abgr, AV_PIX_FMT_ABGR);
+YUV2PACKEDX_WRAPPER(bgra, AV_PIX_FMT_BGRA);
+YUV2PACKEDX_WRAPPER(argb, AV_PIX_FMT_ARGB);
+YUV2PACKEDX_WRAPPER(rgba, AV_PIX_FMT_RGBA);
+YUV2PACKEDX_WRAPPER(rgb24, AV_PIX_FMT_RGB24);
+YUV2PACKEDX_WRAPPER(bgr24, AV_PIX_FMT_BGR24);
diff --git a/ffmpeg1/libswscale/ppc/yuv2rgb_altivec.h b/ffmpeg1/libswscale/ppc/yuv2rgb_altivec.h
new file mode 100644
index 0000000..aa52a47
--- /dev/null
+++ b/ffmpeg1/libswscale/ppc/yuv2rgb_altivec.h
@@ -0,0 +1,51 @@
+/*
+ * AltiVec-enhanced yuv2yuvX
+ *
+ * Copyright (C) 2004 Romain Dolbeau <romain@dolbeau.org>
+ * based on the equivalent C code in swscale.c
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef SWSCALE_PPC_YUV2RGB_ALTIVEC_H
+#define SWSCALE_PPC_YUV2RGB_ALTIVEC_H
+
+#include <stdint.h>
+
+#include "libswscale/swscale_internal.h"
+
+#define YUV2PACKEDX_HEADER(suffix) \
+ void ff_yuv2 ## suffix ## _X_altivec(SwsContext *c, \
+ const int16_t *lumFilter, \
+ const int16_t **lumSrc, \
+ int lumFilterSize, \
+ const int16_t *chrFilter, \
+ const int16_t **chrUSrc, \
+ const int16_t **chrVSrc, \
+ int chrFilterSize, \
+ const int16_t **alpSrc, \
+ uint8_t *dest, \
+ int dstW, int dstY);
+
+YUV2PACKEDX_HEADER(abgr);
+YUV2PACKEDX_HEADER(bgra);
+YUV2PACKEDX_HEADER(argb);
+YUV2PACKEDX_HEADER(rgba);
+YUV2PACKEDX_HEADER(rgb24);
+YUV2PACKEDX_HEADER(bgr24);
+
+#endif /* SWSCALE_PPC_YUV2RGB_ALTIVEC_H */
diff --git a/ffmpeg1/libswscale/ppc/yuv2yuv_altivec.c b/ffmpeg1/libswscale/ppc/yuv2yuv_altivec.c
new file mode 100644
index 0000000..792deb9
--- /dev/null
+++ b/ffmpeg1/libswscale/ppc/yuv2yuv_altivec.c
@@ -0,0 +1,194 @@
+/*
+ * AltiVec-enhanced yuv-to-yuv conversion routines.
+ *
+ * Copyright (C) 2004 Romain Dolbeau <romain@dolbeau.org>
+ * based on the equivalent C code in swscale.c
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <inttypes.h>
+
+#include "config.h"
+#include "libswscale/swscale.h"
+#include "libswscale/swscale_internal.h"
+#include "libavutil/cpu.h"
+
+static int yv12toyuy2_unscaled_altivec(SwsContext *c, const uint8_t *src[],
+ int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t *dstParam[],
+ int dstStride_a[])
+{
+ uint8_t *dst = dstParam[0] + dstStride_a[0] * srcSliceY;
+ // yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH,
+ // srcStride[0], srcStride[1], dstStride[0]);
+ const uint8_t *ysrc = src[0];
+ const uint8_t *usrc = src[1];
+ const uint8_t *vsrc = src[2];
+ const int width = c->srcW;
+ const int height = srcSliceH;
+ const int lumStride = srcStride[0];
+ const int chromStride = srcStride[1];
+ const int dstStride = dstStride_a[0];
+ const vector unsigned char yperm = vec_lvsl(0, ysrc);
+ const int vertLumPerChroma = 2;
+ register unsigned int y;
+
+ /* This code assumes:
+ *
+ * 1) dst is 16 bytes-aligned
+ * 2) dstStride is a multiple of 16
+ * 3) width is a multiple of 16
+ * 4) lum & chrom stride are multiples of 8
+ */
+
+ for (y = 0; y < height; y++) {
+ int i;
+ for (i = 0; i < width - 31; i += 32) {
+ const unsigned int j = i >> 1;
+ vector unsigned char v_yA = vec_ld(i, ysrc);
+ vector unsigned char v_yB = vec_ld(i + 16, ysrc);
+ vector unsigned char v_yC = vec_ld(i + 32, ysrc);
+ vector unsigned char v_y1 = vec_perm(v_yA, v_yB, yperm);
+ vector unsigned char v_y2 = vec_perm(v_yB, v_yC, yperm);
+ vector unsigned char v_uA = vec_ld(j, usrc);
+ vector unsigned char v_uB = vec_ld(j + 16, usrc);
+ vector unsigned char v_u = vec_perm(v_uA, v_uB, vec_lvsl(j, usrc));
+ vector unsigned char v_vA = vec_ld(j, vsrc);
+ vector unsigned char v_vB = vec_ld(j + 16, vsrc);
+ vector unsigned char v_v = vec_perm(v_vA, v_vB, vec_lvsl(j, vsrc));
+ vector unsigned char v_uv_a = vec_mergeh(v_u, v_v);
+ vector unsigned char v_uv_b = vec_mergel(v_u, v_v);
+ vector unsigned char v_yuy2_0 = vec_mergeh(v_y1, v_uv_a);
+ vector unsigned char v_yuy2_1 = vec_mergel(v_y1, v_uv_a);
+ vector unsigned char v_yuy2_2 = vec_mergeh(v_y2, v_uv_b);
+ vector unsigned char v_yuy2_3 = vec_mergel(v_y2, v_uv_b);
+ vec_st(v_yuy2_0, (i << 1), dst);
+ vec_st(v_yuy2_1, (i << 1) + 16, dst);
+ vec_st(v_yuy2_2, (i << 1) + 32, dst);
+ vec_st(v_yuy2_3, (i << 1) + 48, dst);
+ }
+ if (i < width) {
+ const unsigned int j = i >> 1;
+ vector unsigned char v_y1 = vec_ld(i, ysrc);
+ vector unsigned char v_u = vec_ld(j, usrc);
+ vector unsigned char v_v = vec_ld(j, vsrc);
+ vector unsigned char v_uv_a = vec_mergeh(v_u, v_v);
+ vector unsigned char v_yuy2_0 = vec_mergeh(v_y1, v_uv_a);
+ vector unsigned char v_yuy2_1 = vec_mergel(v_y1, v_uv_a);
+ vec_st(v_yuy2_0, (i << 1), dst);
+ vec_st(v_yuy2_1, (i << 1) + 16, dst);
+ }
+ if ((y & (vertLumPerChroma - 1)) == vertLumPerChroma - 1) {
+ usrc += chromStride;
+ vsrc += chromStride;
+ }
+ ysrc += lumStride;
+ dst += dstStride;
+ }
+
+ return srcSliceH;
+}
+
+static int yv12touyvy_unscaled_altivec(SwsContext *c, const uint8_t *src[],
+ int srcStride[], int srcSliceY,
+ int srcSliceH, uint8_t *dstParam[],
+ int dstStride_a[])
+{
+ uint8_t *dst = dstParam[0] + dstStride_a[0] * srcSliceY;
+ // yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH,
+ // srcStride[0], srcStride[1], dstStride[0]);
+ const uint8_t *ysrc = src[0];
+ const uint8_t *usrc = src[1];
+ const uint8_t *vsrc = src[2];
+ const int width = c->srcW;
+ const int height = srcSliceH;
+ const int lumStride = srcStride[0];
+ const int chromStride = srcStride[1];
+ const int dstStride = dstStride_a[0];
+ const int vertLumPerChroma = 2;
+ const vector unsigned char yperm = vec_lvsl(0, ysrc);
+ register unsigned int y;
+
+ /* This code assumes:
+ *
+ * 1) dst is 16 bytes-aligned
+ * 2) dstStride is a multiple of 16
+ * 3) width is a multiple of 16
+ * 4) lum & chrom stride are multiples of 8
+ */
+
+ for (y = 0; y < height; y++) {
+ int i;
+ for (i = 0; i < width - 31; i += 32) {
+ const unsigned int j = i >> 1;
+ vector unsigned char v_yA = vec_ld(i, ysrc);
+ vector unsigned char v_yB = vec_ld(i + 16, ysrc);
+ vector unsigned char v_yC = vec_ld(i + 32, ysrc);
+ vector unsigned char v_y1 = vec_perm(v_yA, v_yB, yperm);
+ vector unsigned char v_y2 = vec_perm(v_yB, v_yC, yperm);
+ vector unsigned char v_uA = vec_ld(j, usrc);
+ vector unsigned char v_uB = vec_ld(j + 16, usrc);
+ vector unsigned char v_u = vec_perm(v_uA, v_uB, vec_lvsl(j, usrc));
+ vector unsigned char v_vA = vec_ld(j, vsrc);
+ vector unsigned char v_vB = vec_ld(j + 16, vsrc);
+ vector unsigned char v_v = vec_perm(v_vA, v_vB, vec_lvsl(j, vsrc));
+ vector unsigned char v_uv_a = vec_mergeh(v_u, v_v);
+ vector unsigned char v_uv_b = vec_mergel(v_u, v_v);
+ vector unsigned char v_uyvy_0 = vec_mergeh(v_uv_a, v_y1);
+ vector unsigned char v_uyvy_1 = vec_mergel(v_uv_a, v_y1);
+ vector unsigned char v_uyvy_2 = vec_mergeh(v_uv_b, v_y2);
+ vector unsigned char v_uyvy_3 = vec_mergel(v_uv_b, v_y2);
+ vec_st(v_uyvy_0, (i << 1), dst);
+ vec_st(v_uyvy_1, (i << 1) + 16, dst);
+ vec_st(v_uyvy_2, (i << 1) + 32, dst);
+ vec_st(v_uyvy_3, (i << 1) + 48, dst);
+ }
+ if (i < width) {
+ const unsigned int j = i >> 1;
+ vector unsigned char v_y1 = vec_ld(i, ysrc);
+ vector unsigned char v_u = vec_ld(j, usrc);
+ vector unsigned char v_v = vec_ld(j, vsrc);
+ vector unsigned char v_uv_a = vec_mergeh(v_u, v_v);
+ vector unsigned char v_uyvy_0 = vec_mergeh(v_uv_a, v_y1);
+ vector unsigned char v_uyvy_1 = vec_mergel(v_uv_a, v_y1);
+ vec_st(v_uyvy_0, (i << 1), dst);
+ vec_st(v_uyvy_1, (i << 1) + 16, dst);
+ }
+ if ((y & (vertLumPerChroma - 1)) == vertLumPerChroma - 1) {
+ usrc += chromStride;
+ vsrc += chromStride;
+ }
+ ysrc += lumStride;
+ dst += dstStride;
+ }
+ return srcSliceH;
+}
+
+void ff_swscale_get_unscaled_altivec(SwsContext *c)
+{
+ if ((av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) && !(c->srcW & 15) &&
+ !(c->flags & SWS_BITEXACT) && c->srcFormat == AV_PIX_FMT_YUV420P) {
+ enum AVPixelFormat dstFormat = c->dstFormat;
+
+ // unscaled YV12 -> packed YUV, we want speed
+ if (dstFormat == AV_PIX_FMT_YUYV422)
+ c->swScale = yv12toyuy2_unscaled_altivec;
+ else if (dstFormat == AV_PIX_FMT_UYVY422)
+ c->swScale = yv12touyvy_unscaled_altivec;
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 16:37:12 +0000