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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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shuffling code around
Original commit message from CVS: shuffling code around
This commit is contained in:
Thomas Vander Stichele
parent
322d247d16
commit
20ed00a9a0
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@ -38,8 +38,6 @@
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#define ROUND_UP_8(x) (((x) + 7) & ~7)
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/* scalers */
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static void gst_videoscale_scale_nearest (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh);
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#if 0
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static void gst_videoscale_scale_plane_slow (GstVideoscale * scale,
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unsigned char *src, unsigned char *dest, int sw, int sh, int dw, int dh);
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@ -68,15 +66,17 @@ static void gst_videoscale_24bit (GstVideoscale * scale, unsigned char *dest,
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static void gst_videoscale_16bit (GstVideoscale * scale, unsigned char *dest,
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unsigned char *src);
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static void gst_videoscale_scale_nearest_str1 (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh);
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static void gst_videoscale_scale_nearest_str2 (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh);
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static void gst_videoscale_scale_nearest_str4 (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh);
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static void gst_videoscale_scale_nearest_32bit (GstVideoscale * scale,
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static void gst_videoscale_scale_nearest_16bit (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh);
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static void gst_videoscale_scale_nearest_24bit (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh);
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static void gst_videoscale_scale_nearest_16bit (GstVideoscale * scale,
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static void gst_videoscale_scale_nearest_32bit (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh);
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#define fourcc_YUY2 GST_MAKE_FOURCC('Y','U','Y','2')
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@ -238,10 +238,10 @@ gst_videoscale_setup (GstVideoscale * videoscale)
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/* FIXME: we should get from and to strides from caps. For now we conform
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* to videotestsrc's idea of it, which is to round w * bytespp to nearest
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* multiple of 4 */
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from_stride = ROUND_UP_4 (videoscale->from_width *
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(ROUND_UP_8 (videoscale->format->bpp) / 8));
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to_stride = ROUND_UP_4 (videoscale->to_width *
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(ROUND_UP_8 (videoscale->format->bpp) / 8));
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from_stride = ROUND_UP_4 ((videoscale->from_width *
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ROUND_UP_4 (videoscale->format->bpp)) / 8);
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to_stride = ROUND_UP_4 ((videoscale->to_width *
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ROUND_UP_4 (videoscale->format->bpp)) / 8);
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GST_DEBUG_OBJECT (videoscale, "from_stride %d to_stride %d",
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from_stride, to_stride);
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videoscale->from_buf_size = from_stride * videoscale->from_height;
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@ -292,7 +292,7 @@ gst_videoscale_planar411 (GstVideoscale * scale, unsigned char *dest,
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GST_LOG_OBJECT (scale, "scaling planar 4:1:1 %dx%d to %dx%d", sw, sh, dw, dh);
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gst_videoscale_scale_nearest (scale, dest, src, sw, sh, dw, dh);
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gst_videoscale_scale_nearest_str1 (scale, dest, src, sw, sh, dw, dh);
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src += sw * sh;
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dest += dw * dh;
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@ -302,12 +302,12 @@ gst_videoscale_planar411 (GstVideoscale * scale, unsigned char *dest,
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sh = sh >> 1;
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sw = sw >> 1;
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gst_videoscale_scale_nearest (scale, dest, src, sw, sh, dw, dh);
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gst_videoscale_scale_nearest_str1 (scale, dest, src, sw, sh, dw, dh);
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src += sw * sh;
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dest += dw * dh;
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gst_videoscale_scale_nearest (scale, dest, src, sw, sh, dw, dh);
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gst_videoscale_scale_nearest_str1 (scale, dest, src, sw, sh, dw, dh);
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}
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static void
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@ -321,7 +321,7 @@ gst_videoscale_planar400 (GstVideoscale * scale, unsigned char *dest,
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GST_LOG_OBJECT (scale, "scaling Y-only %dx%d to %dx%d", sw, sh, dw, dh);
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gst_videoscale_scale_nearest (scale, dest, src, sw, sh, dw, dh);
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gst_videoscale_scale_nearest_str1 (scale, dest, src, sw, sh, dw, dh);
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}
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static void
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@ -566,24 +566,27 @@ gst_videoscale_scale_point_sample (GstVideoscale * scale, unsigned char *src,
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#endif
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static void
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gst_videoscale_scale_nearest (GstVideoscale * scale,
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gst_videoscale_scale_nearest_str1 (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh)
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{
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int ypos, yinc, y;
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int xpos, xinc, x;
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guchar *destp;
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guchar *srcp;
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int sstride, dstride;
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GST_LOG_OBJECT (scale, "scaling nearest %p %p %d", src, dest, dw);
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GST_LOG_OBJECT (scale, "scaling nearest from %p to %p with dest width %d",
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src, dest, dw);
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ypos = 0;
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yinc = (sh << 16) / dh;
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xinc = (sw << 16) / dw;
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sstride = sw;
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dstride = dw;
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for (y = dh; y; y--) {
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if (ypos >= 0x10000) {
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src += (ypos >> 16) * sw;
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src += (ypos >> 16) * sstride;
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ypos &= 0xffff;
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}
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@ -600,7 +603,7 @@ gst_videoscale_scale_nearest (GstVideoscale * scale,
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*destp++ = *srcp;
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xpos += xinc;
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}
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dest += dw;
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dest += dstride;
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ypos += yinc;
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}
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@ -614,18 +617,21 @@ gst_videoscale_scale_nearest_str2 (GstVideoscale * scale,
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int xpos, xinc, x;
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guchar *destp;
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guchar *srcp;
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int sstride, dstride;
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GST_LOG_OBJECT (scale, "scaling nearest %p %p %d", src, dest, dw);
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GST_LOG_OBJECT (scale, "scaling nearest from %p to %p with dest width %d",
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src, dest, dw);
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ypos = 0;
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yinc = (sh << 16) / dh;
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xinc = (sw << 16) / dw;
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sstride = sw * 2;
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dstride = dw * 2;
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for (y = dh; y; y--) {
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if (ypos >= 0x10000) {
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src += (ypos >> 16) * sw * 2;
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src += (ypos >> 16) * sstride;
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ypos &= 0xffff;
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}
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@ -643,7 +649,7 @@ gst_videoscale_scale_nearest_str2 (GstVideoscale * scale,
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destp += 2;
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xpos += xinc;
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}
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dest += dw * 2;
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dest += dstride;
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ypos += yinc;
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}
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@ -657,105 +663,16 @@ gst_videoscale_scale_nearest_str4 (GstVideoscale * scale,
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int xpos, xinc, x;
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guchar *destp;
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guchar *srcp;
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int sstride, dstride;
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GST_LOG_OBJECT (scale, "scaling nearest %p %p %d", src, dest, dw);
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ypos = 0;
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yinc = (sh << 16) / dh;
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xinc = (sw << 16) / dw;
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for (y = dh; y; y--) {
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if (ypos >= 0x10000) {
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src += (ypos >> 16) * sw * 4;
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ypos &= 0xffff;
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}
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xpos = 0;
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srcp = src;
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destp = dest;
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for (x = dw; x; x--) {
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if (xpos >= 0x10000) {
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srcp += (xpos >> 16) * 4;
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xpos &= 0xffff;
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}
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*destp = *srcp;
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destp += 4;
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xpos += xinc;
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}
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dest += dw * 4;
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ypos += yinc;
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}
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}
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static void
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gst_videoscale_scale_nearest_32bit (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh)
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{
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int ypos, yinc, y;
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int xpos, xinc, x;
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guchar *destp;
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guchar *srcp;
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GST_LOG_OBJECT (scale, "scaling nearest %p %p %d", src, dest, dw);
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/* given how videoscale rounds off stride to nearest multiple of 4,
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* we don't have stride issues for 32 bit */
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ypos = 0;
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yinc = (sh << 16) / dh;
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xinc = (sw << 16) / dw;
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for (y = dh; y; y--) {
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if (ypos >= 0x10000) {
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src += (ypos >> 16) * sw * 4;
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ypos &= 0xffff;
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}
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xpos = 0;
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srcp = src;
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destp = dest;
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for (x = dw; x; x--) {
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if (xpos >= 0x10000) {
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srcp += (xpos >> 16) * 4;
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xpos &= 0xffff;
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}
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*(guint32 *) destp = *(guint32 *) srcp;
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destp += 4;
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xpos += xinc;
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}
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dest += dw * 4;
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ypos += yinc;
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}
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}
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static void
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gst_videoscale_scale_nearest_24bit (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh)
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{
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int ypos, yinc, y;
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int xpos, xinc, x;
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guchar *destp;
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guchar *srcp;
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int sstride, dstride; /* row strides in bytes */
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GST_LOG_OBJECT (scale, "scaling nearest %p %p %d", src, dest, dw);
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/* FIXME: strides should be gotten from caps; for now we do it Just Like
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videotestsrc, which means round off to next multiple of 4 bytes */
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sstride = ROUND_UP_4 (sw * 3);
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dstride = ROUND_UP_4 (dw * 3);
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GST_LOG_OBJECT (scale, "scaling nearest from %p to %p with dest width %d",
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src, dest, dw);
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ypos = 0;
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yinc = (sh << 16) / dh;
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xinc = (sw << 16) / dw;
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sstride = sw * 4;
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dstride = dw * 4;
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for (y = dh; y; y--) {
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@ -771,13 +688,11 @@ gst_videoscale_scale_nearest_24bit (GstVideoscale * scale,
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for (x = dw; x; x--) {
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if (xpos >= 0x10000) {
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srcp += (xpos >> 16) * 3;
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srcp += (xpos >> 16) * 4;
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xpos &= 0xffff;
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}
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destp[0] = srcp[0];
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destp[1] = srcp[1];
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destp[2] = srcp[2];
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destp += 3;
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*destp = *srcp;
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destp += 4;
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xpos += xinc;
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}
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dest += dstride;
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@ -841,3 +756,97 @@ gst_videoscale_scale_nearest_16bit (GstVideoscale * scale,
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ypos += yinc;
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}
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}
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static void
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gst_videoscale_scale_nearest_24bit (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh)
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{
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int ypos, yinc, y;
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int xpos, xinc, x;
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guchar *destp;
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guchar *srcp;
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int sstride, dstride; /* row strides in bytes */
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GST_LOG_OBJECT (scale, "scaling nearest %p %p %d", src, dest, dw);
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/* FIXME: strides should be gotten from caps; for now we do it Just Like
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videotestsrc, which means round off to next multiple of 4 bytes */
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sstride = ROUND_UP_4 (sw * 3);
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dstride = ROUND_UP_4 (dw * 3);
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ypos = 0;
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yinc = (sh << 16) / dh;
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xinc = (sw << 16) / dw;
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for (y = dh; y; y--) {
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if (ypos >= 0x10000) {
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src += (ypos >> 16) * sstride;
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ypos &= 0xffff;
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}
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xpos = 0;
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srcp = src;
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destp = dest;
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for (x = dw; x; x--) {
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if (xpos >= 0x10000) {
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srcp += (xpos >> 16) * 3;
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xpos &= 0xffff;
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}
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destp[0] = srcp[0];
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destp[1] = srcp[1];
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destp[2] = srcp[2];
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destp += 3;
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xpos += xinc;
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}
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dest += dstride;
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ypos += yinc;
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}
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}
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static void
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gst_videoscale_scale_nearest_32bit (GstVideoscale * scale,
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unsigned char *dest, unsigned char *src, int sw, int sh, int dw, int dh)
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{
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int ypos, yinc, y;
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int xpos, xinc, x;
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guchar *destp;
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guchar *srcp;
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GST_LOG_OBJECT (scale, "scaling nearest %p %p %d", src, dest, dw);
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/* given how videoscale rounds off stride to nearest multiple of 4,
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* we don't have stride issues for 32 bit */
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ypos = 0;
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yinc = (sh << 16) / dh;
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xinc = (sw << 16) / dw;
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for (y = dh; y; y--) {
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if (ypos >= 0x10000) {
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src += (ypos >> 16) * sw * 4;
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ypos &= 0xffff;
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}
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xpos = 0;
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srcp = src;
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destp = dest;
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for (x = dw; x; x--) {
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if (xpos >= 0x10000) {
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srcp += (xpos >> 16) * 4;
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xpos &= 0xffff;
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}
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*(guint32 *) destp = *(guint32 *) srcp;
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destp += 4;
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xpos += xinc;
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}
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dest += dw * 4;
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ypos += yinc;
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}
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}
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