From 06f2fad8fd69c8405769efbd64c6312ec9815341 Mon Sep 17 00:00:00 2001
From: Oliver Schinagl <oliver@schinagl.nl>
Date: Sun, 10 Apr 2005 20:55:23 +0000
Subject: Some small updates and split some up to color.c and bmpjpeg.c

---
 src/main.c | 88 +++++++++++++++++++++++++++++---------------------------------
 1 file changed, 41 insertions(+), 47 deletions(-)

diff --git a/src/main.c b/src/main.c
index e49f249..dcf60a5 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,11 +1,12 @@
 #include <stdio.h>
 #include "dct.h"
+#include "bmpjpeg.h"
 
 #define ENCODE 0
 #define DECODE 1
 #define MAXROWS 1024
 #define MAXCOLS 768
-#define HEADER	56
+#define HEADER	54
 
 #define SOI_MK	0xFFD8		/* start of image	*/
 #define SOF_MK	0xFFC0		/* start of frame	*/
@@ -16,49 +17,12 @@
 
 unsigned char Image1[MAXCOLS*3*MAXROWS+HEADER];
 
-unsigned char clip(int value) {
-   if (value < 0) return (char) 0;
-   if (value > 255) return (char) 255;
-   return (unsigned char) value;
-}
-
-/* RGB -> YCbCr (also from BMP to JPEG) */
-// Y = 0.299 R + 0.587 G + 0.114 B
-unsigned char RGB2Y (unsigned char R, unsigned char G, unsigned char B) {
-   return  clip(((R*77)>>8) +  ((G*150)>>8) + ((B*29)>>8));
-}
-
-// Cb = - 0.1687 R - 0.3313 G + 0.5 B + 128
-unsigned char RGB2Cb (unsigned char R, unsigned char G, unsigned char B) {
-   return  clip((B>>1)-((R*43)>>8) - ((G*85)>>8) + 128);
-}
-
-//Cr = 0.5 R - 0.4187 G - 0.0813 B + 128
-unsigned char RGB2Cr (unsigned char R, unsigned char G, unsigned char B) {
-   return  clip((R>>1) - ((G*107)>>8) - ((B*21)>>8) + 128);
-}
-
-
-/* RGB -> YCbCr (also from JPEG to BMP) */
-// R = Y + 1.402 (Cr-128)
-unsigned char YCbCr2R (unsigned char Y, unsigned char Cr) {
-   return  clip(Y + (((Cr-128)*359)>>8));
-}
-
-// G = Y - 0.34414 (Cb-128) - 0.71414 (Cr-128)
-unsigned char YCbCr2G (unsigned char Y, unsigned char Cb, unsigned char Cr) {
-   return  clip(Y - (((Cb-128)*88)>>8) - (((Cr-128)*183)>>8));
-}
-
-// B = Y + 1.772 (Cb-128)
-unsigned char YCbCr2B (unsigned char Y, unsigned char Cb) {
-   return  clip(Y + (((Cb-128)*227)>>7));
-}
-
-
 int main(int argc, char *argv[]) {
 	int retval, i;
 	int workspace[DCTSIZE_BLOCK];
+
+	unsigned char blok8x8[64*3];
+
 	int type, hCounter = 0;
 	int x_size, y_size, offset, depth;
 
@@ -71,7 +35,7 @@ int main(int argc, char *argv[]) {
 /*	Just for testing on the PC		*/
 	if(argc != 4)
 	{
-		printf("need more arguments");
+		printf("need more arguments, 0|1 for de/encrypt and 2 more for the in/ouput files");
 		return 0;
 	}
 
@@ -157,13 +121,43 @@ int main(int argc, char *argv[]) {
 
 	retval = 0;
 	type = ENCODE;
+	printf("Before:");
+	for(i=0;i<(x_size*y_size*3);i++)
+	{
+		if((i%24)==0) printf("\n");
+		printf("%02x ",Image1[i+offset]);
+	}
+	printf("\nBMPto8x8 functie\n");
+
+	BMPto8x8AndYCbCr(0,0,x_size,y_size,offset,depth,Image1,blok8x8);
+	printf("\n8x8 Blok:\n");
+	for(i=0;i<64;i++)
+	{
+		printf("%02x",blok8x8[i]);
+	}
+
+	for(i=0;i<(x_size*y_size*3);i++)
+	{
+		Image1[i+offset] = 0;
+	}
+
+	printf("\n8x8toBMP functie\n");
+	YCbCrAnd8x8toBMP(0,0,x_size,y_size,offset,depth,Image1,blok8x8);
+
+	printf("\nAfter:\n");
+	for(i=0;i<(x_size*y_size*3);i++)
+	{
+		if((i%24)==0) printf("\n");
+		printf("%02x ",Image1[i+offset]);
+	}
+
 
 	switch(type) {
 	case ENCODE:
-		// RGB -> YUV
-
-		// Convert to 8x8
+		// RGB -> YUV ---> done
 
+		// Convert to 8x8 --> done
+		//BMPto8x8AndYCbCr(0,0,x_size,y_size,offset,depth,Image1,blok8x8);
 		// DCT
 		fdct(workspace);
 
@@ -183,9 +177,9 @@ int main(int argc, char *argv[]) {
 
 		// IDCT
 		//idct(workspace);
-		// Convert 8x8 to lines
-
+		// Convert 8x8 to BMP style -> done
 		// YUV -> RGB
+		// YCbCrAnd8x8toBMP()
 
 	break;
 	}
-- 
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