From 757776530027888884add5f8c4bac0771da0aef3 Mon Sep 17 00:00:00 2001
From: arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Fri, 19 Apr 2002 02:18:46 +0000
Subject: rotation/mirror filter

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5697 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 libmpcodecs/Makefile    |   2 +-
 libmpcodecs/vf.c        |   2 +
 libmpcodecs/vf_rotate.c | 108 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 111 insertions(+), 1 deletion(-)
 create mode 100644 libmpcodecs/vf_rotate.c

diff --git a/libmpcodecs/Makefile b/libmpcodecs/Makefile
index cc2381c8b5..32156f9ee2 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
+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
 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 07cdd44330..25d59838d4 100644
--- a/libmpcodecs/vf.c
+++ b/libmpcodecs/vf.c
@@ -19,6 +19,7 @@ extern vf_info_t vf_info_format;
 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;
 
 char** vo_plugin_args=(char**) NULL;
 
@@ -35,6 +36,7 @@ static vf_info_t* filter_list[]={
     &vf_info_yuy2,
     &vf_info_flip,
     &vf_info_rgb2bgr,
+    &vf_info_rotate,
     NULL
 };
 
diff --git a/libmpcodecs/vf_rotate.c b/libmpcodecs/vf_rotate.c
new file mode 100644
index 0000000000..02ad82c776
--- /dev/null
+++ b/libmpcodecs/vf_rotate.c
@@ -0,0 +1,108 @@
+#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"
+
+struct vf_priv_s {
+    int direction;
+};
+
+static void rotate(unsigned char* dst,unsigned char* src,int dststride,int srcstride,int w,int h,int bpp,int dir){
+    int y;
+    if(dir&1){
+	src+=srcstride*(w-1);
+	srcstride*=-1;
+    }
+    if(dir&2){
+	dst+=dststride*(h-1);
+	dststride*=-1;
+    }
+
+    for(y=0;y<h;y++){
+	int x;
+	switch(bpp){
+	case 1:
+	    for(x=0;x<w;x++) dst[x]=src[y+x*srcstride];
+	    break;
+	case 2:
+	    for(x=0;x<w;x++) *((short*)(dst+x*2))=*((short*)(src+y*2+x*srcstride));
+	    break;
+	case 3:
+	    for(x=0;x<w;x++){
+		dst[x*3+0]=src[0+y*3+x*srcstride];
+		dst[x*3+1]=src[1+y*3+x*srcstride];
+		dst[x*3+2]=src[2+y*3+x*srcstride];
+	    }
+	    break;
+	case 4:
+	    for(x=0;x<w;x++) *((int*)(dst+x*4))=*((int*)(src+y*4+x*srcstride));
+	}
+	dst+=dststride;
+    }
+}
+
+//===========================================================================//
+
+static int config(struct vf_instance_s* vf,
+        int width, int height, int d_width, int d_height,
+	unsigned int flags, unsigned int outfmt){
+    
+    return vf_next_config(vf,height,width,d_height,d_width,flags,outfmt);
+}
+
+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->h, mpi->w);
+
+    if(mpi->flags&MP_IMGFLAG_PLANAR){
+	rotate(dmpi->planes[0],mpi->planes[0],
+	       dmpi->stride[0],mpi->stride[0],
+	       dmpi->w,dmpi->h,1,vf->priv->direction);
+	rotate(dmpi->planes[1],mpi->planes[1],
+	       dmpi->stride[1],mpi->stride[1],
+	       dmpi->w>>1,dmpi->h>>1,1,vf->priv->direction);
+	rotate(dmpi->planes[2],mpi->planes[2],
+	       dmpi->stride[2],mpi->stride[2],
+	       dmpi->w>>1,dmpi->h>>1,1,vf->priv->direction);
+    } else {
+	rotate(dmpi->planes[0],mpi->planes[0],
+	       dmpi->stride[0],mpi->stride[0],
+	       dmpi->w,dmpi->h,dmpi->bpp>>3,vf->priv->direction);	
+    }
+    
+    vf_next_put_image(vf,dmpi);
+}
+
+//===========================================================================//
+
+static int open(vf_instance_t *vf, char* args){
+    vf->config=config;
+    vf->put_image=put_image;
+    vf->priv=malloc(sizeof(struct vf_priv_s));
+    vf->priv->direction=args?atoi(args):0;
+    return 1;
+}
+
+vf_info_t vf_info_rotate = {
+    "rotate",
+    "rotate",
+    "A'rpi",
+    "",
+    open
+};
+
+//===========================================================================//
-- 
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