From a9f53aa5a098b8ef7ecc9a52d1d702cd8fbb317f Mon Sep 17 00:00:00 2001
From: eyck <eyck@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Sun, 21 Apr 2002 14:36:36 +0000
Subject: [PATCH] Complement existing filters - rotate and flip.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5764 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 libmpcodecs/Makefile    |  2 +-
 libmpcodecs/vf.c        |  2 +
 libmpcodecs/vf_mirror.c | 93 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 96 insertions(+), 1 deletion(-)
 create mode 100644 libmpcodecs/vf_mirror.c

diff --git a/libmpcodecs/Makefile b/libmpcodecs/Makefile
index 32156f9ee2..87f1922c29 100644
--- a/libmpcodecs/Makefile
+++ b/libmpcodecs/Makefile
@@ -6,7 +6,7 @@ LIBNAME2 = libmpencoders.a
 
 AUDIO_SRCS=dec_audio.c ad.c ad_a52.c ad_acm.c ad_alaw.c ad_dk3adpcm.c ad_dk4adpcm.c ad_dshow.c ad_dvdpcm.c ad_ffmpeg.c ad_hwac3.c ad_imaadpcm.c ad_mp3.c ad_msadpcm.c ad_pcm.c ad_roqaudio.c ad_msgsm.c ad_faad.c ad_vorbis.c ad_libmad.c
 VIDEO_SRCS=dec_video.c vd.c vd_null.c vd_cinepak.c vd_qtrpza.c vd_ffmpeg.c vd_dshow.c vd_vfw.c vd_odivx.c vd_divx4.c vd_raw.c vd_xanim.c vd_msvidc.c vd_fli.c vd_qtrle.c vd_qtsmc.c vd_roqvideo.c vd_cyuv.c vd_nuv.c vd_libmpeg2.c vd_msrle.c vd_huffyuv.c vd_zlib.c vd_mpegpes.c
-VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_fame.c vf_format.c vf_yuy2.c vf_flip.c vf_rgb2bgr.c vf_rotate.c
+VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_fame.c vf_format.c vf_yuy2.c vf_flip.c vf_rgb2bgr.c vf_rotate.c vf_mirror.c
 ENCODER_SRCS=ve.c ve_divx4.c ve_lavc.c ve_vfw.c ve_rawrgb.c ve_libdv.c
 NATIVE_SRCS=native/RTjpegN.c native/cinepak.c native/cyuv.c native/fli.c native/minilzo.c native/msvidc.c native/nuppelvideo.c native/qtrle.c native/qtrpza.c native/qtsmc.c native/roqav.c native/xa_gsm.c
 
diff --git a/libmpcodecs/vf.c b/libmpcodecs/vf.c
index b46d58720a..7cd7707ced 100644
--- a/libmpcodecs/vf.c
+++ b/libmpcodecs/vf.c
@@ -20,6 +20,7 @@ extern vf_info_t vf_info_yuy2;
 extern vf_info_t vf_info_flip;
 extern vf_info_t vf_info_rgb2bgr;
 extern vf_info_t vf_info_rotate;
+extern vf_info_t vf_info_mirror;
 
 char** vo_plugin_args=(char**) NULL;
 
@@ -37,6 +38,7 @@ static vf_info_t* filter_list[]={
     &vf_info_flip,
     &vf_info_rgb2bgr,
     &vf_info_rotate,
+    &vf_info_mirror,
     NULL
 };
 
diff --git a/libmpcodecs/vf_mirror.c b/libmpcodecs/vf_mirror.c
new file mode 100644
index 0000000000..f3fb1aaf8c
--- /dev/null
+++ b/libmpcodecs/vf_mirror.c
@@ -0,0 +1,93 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+
+#include "../config.h"
+#include "../mp_msg.h"
+
+#include "img_format.h"
+#include "mp_image.h"
+#include "vf.h"
+
+#include "../libvo/fastmemcpy.h"
+#include "../postproc/rgb2rgb.h"
+
+
+static void mirror(unsigned char* dst,unsigned char* src,int dststride,int srcstride,int w,int h,int bpp){
+    int x;
+
+    // 
+    for(x=0;x<h;x++){
+	int y;
+	switch(bpp){
+	case 1:
+	    for(y=0;y<w;y++) dst[y]=src[w-y-1+x*srcstride];
+	    break;
+	case 2:
+	    for(y=0;y<w;y++) *((short*)(dst+y*2))=*((short*)(src+w-y*2-1+x*srcstride));
+	    break;
+	case 3:
+	    for(y=0;y<w;y++){
+		dst[y*3+0]=src[0+w-y*3-1+x*srcstride];
+		dst[y*3+1]=src[1+w-y*3-1+x*srcstride];
+		dst[y*3+2]=src[2+w-y*3-1+x*srcstride];
+	    }
+	    break;
+	case 4:
+	    for(y=0;y<w;y++) *((int*)(dst+y*4))=*((int*)(src+w-y*4-1+x*srcstride));
+	}
+	dst+=dststride;
+    }
+
+    //
+
+}
+
+//===========================================================================//
+
+static void put_image(struct vf_instance_s* vf, mp_image_t *mpi){
+    mp_image_t *dmpi;
+
+    // hope we'll get DR buffer:
+    dmpi=vf_get_image(vf->next,mpi->imgfmt,
+	MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
+	mpi->w, mpi->h);
+	//mpi->h, mpi->w);
+
+    if(mpi->flags&MP_IMGFLAG_PLANAR){
+	       mirror(dmpi->planes[0],mpi->planes[0],
+	       dmpi->stride[0],mpi->stride[0],
+	       dmpi->w,dmpi->h,1);
+	       mirror(dmpi->planes[1],mpi->planes[1],
+	       dmpi->stride[1],mpi->stride[1],
+	       dmpi->w>>1,dmpi->h>>1,1);
+	       mirror(dmpi->planes[2],mpi->planes[2],
+	       dmpi->stride[2],mpi->stride[2],
+	       dmpi->w>>1,dmpi->h>>1,1);
+    } else {
+	mirror(dmpi->planes[0],mpi->planes[0],
+	       dmpi->stride[0],mpi->stride[0],
+	       dmpi->w,dmpi->h,dmpi->bpp>>3);	
+    }
+    
+    vf_next_put_image(vf,dmpi);
+}
+
+//===========================================================================//
+
+static int open(vf_instance_t *vf, char* args){
+    //vf->config=config;
+    vf->put_image=put_image;
+    return 1;
+}
+
+vf_info_t vf_info_mirror = {
+    "mirror",
+    "mirror",
+    "Eyck",
+    "",
+    open
+};
+
+//===========================================================================//