From f57f36f1f197e2391552466656165f958a963d85 Mon Sep 17 00:00:00 2001
From: michael <michael@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Mon, 3 Jun 2002 14:13:28 +0000
Subject: test pattern filter

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6279 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 libmpcodecs/vf_test.c | 283 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 283 insertions(+)
 create mode 100644 libmpcodecs/vf_test.c

(limited to 'libmpcodecs/vf_test.c')

diff --git a/libmpcodecs/vf_test.c b/libmpcodecs/vf_test.c
new file mode 100644
index 0000000000..9e37a8a75a
--- /dev/null
+++ b/libmpcodecs/vf_test.c
@@ -0,0 +1,283 @@
+/*
+    Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#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 <inttypes.h>
+#include <math.h>
+
+#define MAX(a,b) ((a) > (b) ? (a) : (b))
+#define MIN(a,b) ((a) < (b) ? (a) : (b))
+#define ABS(a,b) ((a) > 0 ? (a) : -(a))
+
+#define WIDTH 512
+#define HEIGHT 512
+
+static int config(struct vf_instance_s* vf,
+        int width, int height, int d_width, int d_height,
+	unsigned int flags, unsigned int outfmt){
+
+    if(vf_next_query_format(vf,IMGFMT_YV12)<=0){
+	printf("yv12 not supported by next filter/vo :(\n");
+	return 0;
+    }
+
+    //hmm whats the meaning of these ... ;)
+    d_width= width= WIDTH;
+    d_height= height= HEIGHT;
+
+    return vf_next_config(vf,width,height,d_width,d_height,flags,IMGFMT_YV12);
+}
+
+static double c[64];
+
+static void initIdct()
+{
+	int i;
+
+	for (i=0; i<8; i++)
+	{
+		double s= i==0 ? sqrt(0.125) : 0.5;
+		int j;
+
+		for(j=0; j<8; j++)
+			c[i*8+j]= s*cos((3.141592654/8.0)*i*(j+0.5));
+	}
+}
+
+
+static void idct(uint8_t *dst, int dstStride, int src[64])
+{
+	int i, j, k;
+	double tmp[64];
+
+	for(i=0; i<8; i++)
+	{
+		for(j=0; j<8; j++)
+		{
+			double sum= 0.0;
+
+			for(k=0; k<8; k++)
+				sum+= c[k*8+j]*src[8*i+k];
+
+			tmp[8*i+j]= sum;
+		}
+	}
+
+	for(j=0; j<8; j++)
+	{
+		for(i=0; i<8; i++)
+		{
+			int v;
+			double sum= 0.0;
+
+			for(k=0; k<8; k++)
+				sum+= c[k*8+i]*tmp[8*k+j];
+
+			v= (int)(sum+0.5);
+			if(v<0) v=0;
+			else if(v>255) v=255;
+
+			dst[dstStride*i + j] = v;
+		}
+	}
+}
+
+static void drawDc(uint8_t *dst, int stride, int color, int w, int h)
+{
+	int y;
+	for(y=0; y<h; y++)
+	{
+		int x;
+		for(x=0; x<w; x++)
+		{
+			dst[x + y*stride]= color;
+		}
+	}
+}
+
+static void drawBasis(uint8_t *dst, int stride, int amp, int freq, int dc)
+{
+	int src[64];
+
+	memset(src, 0, 64*sizeof(int));
+	src[0]= dc;
+	if(amp) src[freq]= amp;
+	idct(dst, stride, src);
+}
+
+static void drawCbp(uint8_t *dst[3], int stride[3], int cbp, int amp, int dc)
+{
+	if(cbp&1) drawBasis(dst[0]              , stride[0], amp, 1, dc);
+	if(cbp&2) drawBasis(dst[0]+8            , stride[0], amp, 1, dc);
+	if(cbp&4) drawBasis(dst[0]+  8*stride[0], stride[0], amp, 1, dc);
+	if(cbp&8) drawBasis(dst[0]+8+8*stride[0], stride[0], amp, 1, dc);
+	if(cbp&16)drawBasis(dst[1]              , stride[1], amp, 1, dc);
+	if(cbp&32)drawBasis(dst[2]              , stride[2], amp, 1, dc);
+}
+
+static void dc1Test(uint8_t *dst, int stride, int w, int h, int off)
+{
+	const int step= MAX(256/(w*h/256), 1);
+	int y;
+	int color=off;
+	for(y=0; y<h; y+=16)
+	{
+		int x;
+		for(x=0; x<w; x+=16)
+		{
+			drawDc(dst + x + y*stride, stride, color, 8, 8);
+			color+=step;
+		}
+	}
+}
+
+static void freq1Test(uint8_t *dst, int stride, int off)
+{
+	int y;
+	int freq=0;
+	for(y=0; y<8*16; y+=16)
+	{
+		int x;
+		for(x=0; x<8*16; x+=16)
+		{
+			drawBasis(dst + x + y*stride, stride, 4*(128+off), freq, 128*8);
+			freq++;
+		}
+	}
+}
+
+static void amp1Test(uint8_t *dst, int stride, int off)
+{
+	int y;
+	int amp=off;
+	for(y=0; y<16*16; y+=16)
+	{
+		int x;
+		for(x=0; x<16*16; x+=16)
+		{
+			drawBasis(dst + x + y*stride, stride, 4*(amp), 1, 128*8);
+			amp++;
+		}
+	}
+}
+
+static void cbp1Test(uint8_t *dst[3], int stride[3], int off)
+{
+	int y;
+	int cbp=0;
+	for(y=0; y<16*8; y+=16)
+	{
+		int x;
+		for(x=0; x<16*8; x+=16)
+		{
+			uint8_t *dst1[3];
+			dst1[0]= dst[0] + x*2 + y*2*stride[0];
+			dst1[1]= dst[1] + x + y*stride[1];
+			dst1[2]= dst[2] + x + y*stride[2];
+
+			drawCbp(dst1, stride, cbp, (64+off)*4, 128*8);
+			cbp++;
+		}
+	}
+}
+
+static void mv1Test(uint8_t *dst, int stride, int off)
+{
+	int y;
+	for(y=0; y<16*16; y++)
+	{
+		int x;
+		if(y&16) continue;
+		for(x=0; x<16*16; x++)
+		{
+			dst[x + y*stride]= x + off*8/(y/32+1);
+		}
+	}
+}
+
+static void put_image(struct vf_instance_s* vf, mp_image_t *mpi){
+    mp_image_t *dmpi;
+    static int frame=0;
+
+    // hope we'll get DR buffer:
+    dmpi=vf_get_image(vf->next,IMGFMT_YV12,
+	MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
+	WIDTH, HEIGHT);
+
+    // clean
+    memset(dmpi->planes[0], 0, dmpi->stride[0]*dmpi->h);
+    memset(dmpi->planes[1], 128, dmpi->stride[1]*dmpi->h>>1);
+    memset(dmpi->planes[2], 128, dmpi->stride[2]*dmpi->h>>1);
+
+    if(frame%30)
+    {
+        switch(frame/30)
+	{
+	case 0:   dc1Test(dmpi->planes[0], dmpi->stride[0], 256, 256, frame%30); break;
+	case 1:   dc1Test(dmpi->planes[1], dmpi->stride[1], 256, 256, frame%30); break;
+	case 2: freq1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
+	case 3: freq1Test(dmpi->planes[1], dmpi->stride[1], frame%30); break;
+	case 4:  amp1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
+	case 5:  amp1Test(dmpi->planes[1], dmpi->stride[1], frame%30); break;
+	case 6:  cbp1Test(dmpi->planes   , dmpi->stride   , frame%30); break;
+	case 7:   mv1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
+	}
+    }
+
+    vf_next_put_image(vf,dmpi);
+    frame++;
+}
+
+//===========================================================================//
+
+static int query_format(struct vf_instance_s* vf, unsigned int fmt){
+    return vf_next_query_format(vf,IMGFMT_YV12) & (~VFCAP_CSP_SUPPORTED_BY_HW);
+}
+
+static int open(vf_instance_t *vf, char* args){
+    vf->config=config;
+    vf->put_image=put_image;
+    vf->query_format=query_format;
+    initIdct();
+    return 1;
+}
+
+vf_info_t vf_info_test = {
+    "test pattern generator",
+    "test",
+    "Michael Niedermayer",
+    "",
+    open
+};
+
+//===========================================================================//
-- 
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