Diff: main.cpp

Revision:

0:5bd441b8ab2d

Child:

1:1ed97958d0f3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Sep 22 00:04:30 2016 +0000
@@ -0,0 +1,129 @@
+
+
+/*
+ * decoder.c
+ *
+ *  Created on: 5/7/2016
+ *      Author: Miguel Ruiz García
+        Company: University of Cantabria
+        e-mail:mrg47@alumnos.unican.es
+ */
+
+
+#include <SDL.h>
+#include <stdio.h>
+#include "mbed.h"
+#include "functions_dec.h"
+#include "lora.h"
+#define BPS 128000
+#define BITS 8
+#define STOP_BITS 1
+ 
+
+
+int main(int argc, char *argv[]){
+    Serial pc(USBTX, USBRX);
+    pc.baud(BPS);
+    pc.format (BITS,SerialBase::None, STOP_BITS) ;
+
+    int i=0,j=0,p_x=0,p_y=0,k=0;
+
+    short int m[HEIGHT][WIDTH][3];
+    short int *matriz=(short int *)malloc(sizeof(short int)*WIDTH*HEIGHT*3);
+    
+    short int acumulador[3]={0,0,0};
+    short int *temp1,*temp2,*temp3;//these are vectors. Memory allocations are done at lora function.
+    lora(temp1,acumulador[0],temp2,acumulador[1],temp3,acumulador[2]);//acumulador tells the length of the respective vector(acumulador[0] -> temp1,...)
+    int indice=0;
+    
+    //We must "unroll" the vectors after being processed with the RLC (in the encoder)
+    for(i=0;i<acumulador[0]>>1;i++){
+        for(j=k;j<*(temp1+indice)+k;j++){
+            *(matriz+j*3)=*(temp1+indice+1);
+        }
+        k=j;
+        indice+=2;
+    }
+    indice=0;
+    k=0;
+    for(i=0;i<acumulador[1]>>1;i++){
+        for(j=k;j<*(temp2+indice)+k;j++){
+            *(matriz+j*3+1)=*(temp2+indice+1);
+        }
+        k=j;
+        indice+=2;
+    }
+    
+    indice=0;
+    k=0;
+    for(i=0;i<acumulador[2]>>1;i++){
+        for(j=k;j<*(temp3+indice)+k;j++){
+            *(matriz+j*3+2)=*(temp3+indice+1);
+        }
+        k=j;
+        indice+=2;
+    }
+    
+    
+    
+    zig_zag_dec(m,matriz);
+
+    cuantizador_dec(m);
+
+
+    int matrix[8][8][3];
+    for(i=0;i<HEIGHT;i+=8){
+        for(j=0;j<WIDTH;j+=8){
+
+            int k=0,l=0;
+
+            for(k=i;k<i+8;k++){
+                for(l=j;l<j+8;l++){
+
+
+                    matrix[k-i][l-j][0]=m[k][l][0];
+                    matrix[k-i][l-j][1]=m[k][l][1];
+                    matrix[k-i][l-j][2]=m[k][l][2];
+                }
+
+            }
+
+            IDCT(matrix,m,i,j);// i j índices de los pixeles en x e y del macrobloque
+
+        }
+
+    }
+
+
+    int bpp=3;
+
+    for(i=0;i<HEIGHT;i++){
+        for(j=0;j<WIDTH;j++){
+               
+                if(m[i][j][0]>235) m[i][j][0]=235;
+                if(m[i][j][1]>235) m[i][j][1]=235;
+                if(m[i][j][2]>240) m[i][j][2]=240;
+
+                if(m[i][j][0]<16) m[i][j][0]=16;
+                if(m[i][j][1]<16) m[i][j][1]=16;
+                if(m[i][j][2]<16) m[i][j][2]=16;
+        }
+    }
+
+    yuv_to_rgb(m);
+
+    for(i=0;i<8;i++){
+       for(j=0;j<320;j++){
+                
+                while(!pc.writeable());
+                pc.printf("%u",(unsigned char)m[i][j][0]);
+                    
+                while(!pc.writeable());
+                pc.printf("%u",(unsigned char)m[i][j][1]);
+                while(!pc.writeable());
+                pc.printf("%u",(unsigned char)m[i][j][2]);
+        
+        }
+    }
+return 0;
+}