making act segmenter

1 files changed, 202 insertions, 0 deletions

diff --git a/ffmpeg/libswscale/bfin/yuv2rgb_bfin.c b/ffmpeg/libswscale/bfin/yuv2rgb_bfin.c
new file mode 100644
index 0000000..e1b7afa
--- /dev/null
+++ b/ffmpeg/libswscale/bfin/yuv2rgb_bfin.c
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
+ *
+ * Blackfin video color space converter operations
+ * convert I420 YV12 to RGB in various formats
+ *
+ * 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 "libavutil/pixdesc.h"
+#include <stdint.h>
+
+#include "config.h"
+#include "libswscale/swscale_internal.h"
+
+#if defined(__FDPIC__) && CONFIG_SRAM
+#define L1CODE __attribute__((l1_text))
+#else
+#define L1CODE
+#endif
+
+void ff_bfin_yuv2rgb555_line(const uint8_t *Y, const uint8_t *U,
+                             const uint8_t *V, uint8_t *out,
+                             int w, uint32_t *coeffs) L1CODE;
+
+void ff_bfin_yuv2rgb565_line(const uint8_t *Y, const uint8_t *U,
+                             const uint8_t *V, uint8_t *out,
+                             int w, uint32_t *coeffs) L1CODE;
+
+void ff_bfin_yuv2rgb24_line(const uint8_t *Y, const uint8_t *U,
+                            const uint8_t *V, uint8_t *out,
+                            int w, uint32_t *coeffs) L1CODE;
+
+typedef void (*ltransform)(const uint8_t *Y, const uint8_t *U, const uint8_t *V,
+                           uint8_t *out, int w, uint32_t *coeffs);
+
+static void bfin_prepare_coefficients(SwsContext *c, int rgb, int masks)
+{
+    int oy;
+    oy = c->yOffset & 0xffff;
+    oy = oy >> 3;      // keep everything U8.0 for offset calculation
+
+    c->oc = 128 * 0x01010101U;
+    c->oy = oy * 0x01010101U;
+
+    /* copy 64bit vector coeffs down to 32bit vector coeffs */
+    c->cy   = c->yCoeff;
+    c->zero = 0;
+
+    if (rgb) {
+        c->crv = c->vrCoeff;
+        c->cbu = c->ubCoeff;
+        c->cgu = c->ugCoeff;
+        c->cgv = c->vgCoeff;
+    } else {
+        c->crv = c->ubCoeff;
+        c->cbu = c->vrCoeff;
+        c->cgu = c->vgCoeff;
+        c->cgv = c->ugCoeff;
+    }
+
+    if (masks == 555) {
+        c->rmask = 0x001f * 0x00010001U;
+        c->gmask = 0x03e0 * 0x00010001U;
+        c->bmask = 0x7c00 * 0x00010001U;
+    } else if (masks == 565) {
+        c->rmask = 0x001f * 0x00010001U;
+        c->gmask = 0x07e0 * 0x00010001U;
+        c->bmask = 0xf800 * 0x00010001U;
+    }
+}
+
+static int core_yuv420_rgb(SwsContext *c, const uint8_t **in, int *instrides,
+                           int srcSliceY, int srcSliceH, uint8_t **oplanes,
+                           int *outstrides, ltransform lcscf,
+                           int rgb, int masks)
+{
+    const uint8_t *py, *pu, *pv;
+    uint8_t *op;
+    int w  = instrides[0];
+    int h2 = srcSliceH >> 1;
+    int i;
+
+    bfin_prepare_coefficients(c, rgb, masks);
+
+    py = in[0];
+    pu = in[1 + (1 ^ rgb)];
+    pv = in[1 + (0 ^ rgb)];
+
+    op = oplanes[0] + srcSliceY * outstrides[0];
+
+    for (i = 0; i < h2; i++) {
+        lcscf(py, pu, pv, op, w, &c->oy);
+
+        py += instrides[0];
+        op += outstrides[0];
+
+        lcscf(py, pu, pv, op, w, &c->oy);
+
+        py += instrides[0];
+        pu += instrides[1];
+        pv += instrides[2];
+        op += outstrides[0];
+    }
+
+    return srcSliceH;
+}
+
+static int bfin_yuv420_rgb555(SwsContext *c, const uint8_t **in, int *instrides,
+                              int srcSliceY, int srcSliceH,
+                              uint8_t **oplanes, int *outstrides)
+{
+    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
+                           outstrides, ff_bfin_yuv2rgb555_line, 1, 555);
+}
+
+static int bfin_yuv420_bgr555(SwsContext *c, const uint8_t **in, int *instrides,
+                              int srcSliceY, int srcSliceH,
+                              uint8_t **oplanes, int *outstrides)
+{
+    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
+                           outstrides, ff_bfin_yuv2rgb555_line, 0, 555);
+}
+
+static int bfin_yuv420_rgb24(SwsContext *c, const uint8_t **in, int *instrides,
+                             int srcSliceY, int srcSliceH,
+                             uint8_t **oplanes, int *outstrides)
+{
+    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
+                           outstrides, ff_bfin_yuv2rgb24_line, 1, 888);
+}
+
+static int bfin_yuv420_bgr24(SwsContext *c, const uint8_t **in, int *instrides,
+                             int srcSliceY, int srcSliceH,
+                             uint8_t **oplanes, int *outstrides)
+{
+    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
+                           outstrides, ff_bfin_yuv2rgb24_line, 0, 888);
+}
+
+static int bfin_yuv420_rgb565(SwsContext *c, const uint8_t **in, int *instrides,
+                              int srcSliceY, int srcSliceH,
+                              uint8_t **oplanes, int *outstrides)
+{
+    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
+                           outstrides, ff_bfin_yuv2rgb565_line, 1, 565);
+}
+
+static int bfin_yuv420_bgr565(SwsContext *c, const uint8_t **in, int *instrides,
+                              int srcSliceY, int srcSliceH,
+                              uint8_t **oplanes, int *outstrides)
+{
+    return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
+                           outstrides, ff_bfin_yuv2rgb565_line, 0, 565);
+}
+
+SwsFunc ff_yuv2rgb_get_func_ptr_bfin(SwsContext *c)
+{
+    SwsFunc f;
+
+    switch (c->dstFormat) {
+    case AV_PIX_FMT_RGB555:
+        f = bfin_yuv420_rgb555;
+        break;
+    case AV_PIX_FMT_BGR555:
+        f = bfin_yuv420_bgr555;
+        break;
+    case AV_PIX_FMT_RGB565:
+        f = bfin_yuv420_rgb565;
+        break;
+    case AV_PIX_FMT_BGR565:
+        f = bfin_yuv420_bgr565;
+        break;
+    case AV_PIX_FMT_RGB24:
+        f = bfin_yuv420_rgb24;
+        break;
+    case AV_PIX_FMT_BGR24:
+        f = bfin_yuv420_bgr24;
+        break;
+    default:
+        return 0;
+    }
+
+    av_log(c, AV_LOG_INFO, "BlackFin accelerated color space converter %s\n",
+           av_get_pix_fmt_name(c->dstFormat));
+
+    return f;
+}