Subversion Repositories mb-jpeg

#include <stdio.h>

#include <stdlib.h>

#include "mb.h"

#include "zzq.h" 

#include "io.h"

#include "huffman.h"

#include "dct.h"

#ifndef __MICROBLAZE

#error This code is for Micrblaze processor only

#endif

char* bmpimage;

int bmpsize;

INFOHEADER _bmpheader;

INFOHEADER *bmpheader;

JPEGHEADER _jpegheader;

JPEGHEADER *jpegheader;

SYSACE_FILE *infile;

SYSACE_FILE *outfile;

unsigned char qtable[64] = {16, 8, 8, 16, 12, 8, 16, 16, 16, 16, 16, 16, 16, 16,

16, 32, 32, 16, 16, 16, 16, 32, 32, 32, 32, 32, 64, 64, 64, 64, 64, 64, 64, 64, 64,

64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 128, 64, 64, 128, 128, 128, 128, 128, 64, 64,

128, 128, 128, 128, 128, 64, 128, 128, 128};

unsigned char huffmancount[4][16] = {{0x00,0x01,0x05,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00},  //standard DC table count

                                    {0x00,0x02,0x01,0x03,0x03,0x02,0x04,0x03,0x05,0x05,0x04,0x04,0x00,0x00,0x01,0x7D},   //standard AC table count

                                    {0x00,0x01,0x05,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00},  //standard DC table count

                                    {0x00,0x02,0x01,0x03,0x03,0x02,0x04,0x03,0x05,0x05,0x04,0x04,0x00,0x00,0x01,0x7D}};  //standard AC table count

unsigned char huffDCvalues[12] ={0x00,  0x01,  0x02,  0x03,  0x04,  0x05,  0x06,  0x07,  0x08,  0x09,  0x0a,  0x0b};// {0x00, 0x02, 0x03, 0x04, 0x05, 0x06, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E, 0x0E};

unsigned char huffACvalues[162] = {0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71,

                                0x14, 0x32, 0x81, 0x91, 0xA1, 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33, 0x62, 0x72, 0x82,

                                0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,

                                0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64,

                                0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87,

                                0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8,

                                0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9,

                                0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9,

                                0xEA, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA};

signed char pixelmatrix[MATRIX_SIZE][MATRIX_SIZE*3];

signed char pmatrix2[MATRIX_SIZE][MATRIX_SIZE];   //YUV domain pixels

int ejpgl_error(int errno, void* remark);

void get_MB(int mb_row, int mb_col, signed char pixelmatrix[MATRIX_SIZE][MATRIX_SIZE*3]) {

       unsigned int row, col;

        int offset;

        for(row = 0;row < MATRIX_SIZE; row++) {

                offset = bmpsize-3*bmpheader->width*(row + 1 + mb_row*MATRIX_SIZE)+MATRIX_SIZE*3*mb_col;

                memcpy(pixelmatrix[row], bmpimage + offset, MATRIX_SIZE*3);

        }

}

void put_char(unsigned char c) {

        sysace_fwrite(&c, 1, 1, outfile);

}

unsigned long htonl(unsigned long x) {

        return ((((x)&0xff000000)>>24) | (((x)&0x00ff0000)>>8) | (((x)&0x0000ff00)<<8) | (((x)&0x000000ff)<<24));

}

unsigned short hton(unsigned short x) {

        return ((((x) & 0xff00)>>8) | (((x) &0x00ff)<<8));

}

int main()

{

  SYSACE_FILE* outfile2;

  int i;

  unsigned int col, cols, row, rows;

  int compression;

  compression = 0;

  bmpimage=(unsigned char*)0x70000000;

  bmpsize=0;

  xil_printf("\r\nBMP2JPG Code Compiled at %s %s\r\n", __DATE__, __TIME__);

  bmpheader=&_bmpheader;

  if ((infile = sysace_fopen("image01.bmp", "r")) == NULL) {

        ejpgl_error(eOPENINPUT_FILE, 0);

        }

  bmpsize = sysace_fread(bmpimage, 1, 65536, infile);

  xil_printf("bmpsize %d\r\n", bmpsize);

  if (bmpsize==65536) {

        ejpgl_error(eLARGE_INPUTFILE, 0);

        }

/*  if ((outfile2 = sysace_fopen("image01b.bmp", "w")) == NULL) {   // see if the BMP file is correctly read into memory

        ejpgl_error(eOPENOUTPUT_FILE, 0);

        }

  sysace_fwrite(bmpimage, 1, bmpsize, outfile2);

  sysace_fclose(outfile2); */

  if (getbmpheader(infile,bmpheader) == 0) { //File is a valid BMP

        ejpgl_error(eINVALID_BMP, 0);

        }

  xil_printf("Image width: %d pixels\r\n", bmpheader->width);

  xil_printf("Image height: %d pixels\r\n", bmpheader->height);

  rows = bmpheader->height>>3;

  cols = bmpheader->width>>3;

  if ((outfile = sysace_fopen("image01.jpg", "w")) == NULL) {

        ejpgl_error(eOPENOUTPUT_FILE, 0);

        }

  writejpegheader(outfile,bmpheader);

  dct_init_start();

  zzq_encode_init_start(compression);

  vlc_init_start();

   for (row = 0; row < rows; row++) {

        for (col = 0; col < cols; col++) {

                get_MB(row, col, pixelmatrix);

// dct->zz/q->vlc               dct call zz/q call vlc

                RGB2Y_matrix(pixelmatrix, pmatrix2);

                dct(pmatrix2, 0);

                RGB2Cr_matrix(pixelmatrix, pmatrix2);

                dct(pmatrix2, 1);

                RGB2Cb_matrix(pixelmatrix, pmatrix2);

                dct(pmatrix2, 2);

        }

   }

   HuffmanEncodeFinishSend();

   xil_printf("\r\nProcessed %d %dx%d-blocks.\r\n",(row-1)*cols+col,MATRIX_SIZE,MATRIX_SIZE);

   writejpegfooter(outfile);

   sysace_fclose(outfile);

   sysace_fclose(infile);

   return 0;

}

int ejpgl_error(int errno, void* remark) {

        xil_printf("--> Error %d\r\n", errno);

        exit(1);

}

int getbmpheader(FILE * file, INFOHEADER *header)

{

       memcpy(header, bmpimage+14, sizeof(INFOHEADER));

#if defined(__MICROBLAZE)      // for Big Endian processors

        header->size = htonl(header->size);

        header->width = htonl(header->width);

        header->height = htonl(header->height);

        header->planes = hton(header->planes);

        header->bits = hton(header->bits);

        header->compression = htonl(header->compression);

        header->imagesize = htonl(header->imagesize);

        header->xresolution = htonl(header->xresolution);

        header->yresolution= htonl(header->yresolution);

        header->ncolours= htonl(header->ncolours);

        header->importantcolours= htonl(header->importantcolours);

#endif

        return 1;

}

void writejpegheader(FILE * file, INFOHEADER *header)

{

        JPEGHEADER *jpegheader;

        unsigned int headersize, huffmantablesize, previoussize;

        unsigned char QTcount, i, j, components, id, huffmantablecount;

        unsigned short length, headerlength;

        //Number of Quatization Tables

        QTcount = 2;

        headerlength = 12; //12 bytes are needed for the markers

        huffmantablecount = 4;  //2 AC and 2 DC tables

        huffmantablesize = 0;

        jpegheader = &_jpegheader;//(JPEGHEADER *)malloc(550);

        jpegheader->SOIMarker[0] = 0xff;

        jpegheader->SOIMarker[1] = 0xd8;

        //APP0 segment

        jpegheader->app0.APP0Marker[0] = 0xff;

        jpegheader->app0.APP0Marker[1] = 0xe0;

        headerlength += 16; //APP0 marker is always 16 bytes long

        jpegheader->app0.Length[0] = 0x00;

        jpegheader->app0.Length[1] = 0x10;

        jpegheader->app0.Identifier[0] = 0x4a;

        jpegheader->app0.Identifier[1] = 0x46;

        jpegheader->app0.Identifier[2] = 0x49;

        jpegheader->app0.Identifier[3] = 0x46;

        jpegheader->app0.Identifier[4] = 0x00;

        jpegheader->app0.Version[0] = 0x01;

        jpegheader->app0.Version[1] = 0x00;

        jpegheader->app0.Units = 0x00;

        jpegheader->app0.XDensity[0] = 0x00;

        jpegheader->app0.XDensity[1] = 0x01;

        jpegheader->app0.YDensity[0] = 0x00;

        jpegheader->app0.YDensity[1] = 0x01;

        jpegheader->app0.ThumbWidth = 0x00;

        jpegheader->app0.ThumbHeight = 0x00;

        //Quantization Table Segment

        jpegheader->qt.QTMarker[0] = 0xff;

        jpegheader->qt.QTMarker[1] = 0xdb;

        length = (QTcount<<6) + QTcount + 2;

        headerlength += length;

        jpegheader->qt.Length[0] = (length & 0xff00)>>8;

        jpegheader->qt.Length[1] = length & 0xff;

       // jpegheader->qt.QTInfo = 0x00; // index = 0, precision = 0

        //write Quantization table to header

        i = 0;

    /*     jpegheader->qt.QTInfo[0] = 0;

        for(i=0;i<64;i++) {

                jpegheader->qt.QTInfo[i+1] = qtable[i];

        }

        jpegheader->qt.QTInfo[65] = 1;

        for(i=0;i<64;i++) {

                jpegheader->qt.QTInfo[i+66] = qtable[i];

        }  */

        for (id=0; id<QTcount; id++) {

                jpegheader->qt.QTInfo[(id<<6)+id] = id;

                for(i=0;i<64;i++) {

                        jpegheader->qt.QTInfo[i+1+id+(id<<6)] = qtable[i];

                }

        }

        //Start of Frame segment

        jpegheader->sof0.SOF0Marker[0] = 0xff;

        jpegheader->sof0.SOF0Marker[1] = 0xc0;

        if(header->bits == 8) {

                components = 0x01;

        }

        else {

                components = 0x03;

        }

        length = 8 + 3*components;

        headerlength += length;

        jpegheader->sof0.Length[0] = (length & 0xff00) >> 8;

        jpegheader->sof0.Length[1] = length & 0xff;

        jpegheader->sof0.DataPrecision = 0x08;

        jpegheader->sof0.ImageHeight[0] = (header->height & 0xff00) >> 8;

        jpegheader->sof0.ImageHeight[1] = header->height & 0xff;

        jpegheader->sof0.ImageWidth[0] = (header->width & 0xff00) >> 8;

        jpegheader->sof0.ImageWidth[1] = header->width & 0xff;

        jpegheader->sof0.Components  = components;

        for (i=0; i < components; i++) {

                jpegheader->sof0.ComponentInfo[i][0] = i+1; //color component

                jpegheader->sof0.ComponentInfo[i][1] = 0x11; //no sampling has been done

                jpegheader->sof0.ComponentInfo[i][2] = (i==0)? 0x00 : 0x01; //quantization table ID

        }

        //Start of Huffman Table Segment

        jpegheader->ht.HTMarker[0] = 0xff;

        jpegheader->ht.HTMarker[1] = 0xc4;

        //Set dummy HT segment length

        length = 0;//tablecount*17;

        jpegheader->ht.Length[0] = (length & 0xff00) >> 8;

        jpegheader->ht.Length[1] = length & 0xff;

        previoussize = 0;

        for (id=0; id < huffmantablecount; id++) {

            huffmantablesize = 0;

            switch (id) {

            case 0 : jpegheader->ht.HuffmanInfo[previoussize] = 0x00;

                     break;

            case 1 : jpegheader->ht.HuffmanInfo[previoussize] = 0x10;

                     break;

            case 2 : jpegheader->ht.HuffmanInfo[previoussize] = 0x01;

                     break;

            case 3 : jpegheader->ht.HuffmanInfo[previoussize] = 0x11;

                     break;

            }

            for (i=1; i <= 16; i++) {

                    jpegheader->ht.HuffmanInfo[i+previoussize] =  huffmancount[id][i-1];

                    huffmantablesize += huffmancount[id][i-1];

            }

            for (i=0; i < huffmantablesize; i++) {

                    jpegheader->ht.HuffmanInfo[i+previoussize+17] = (id%2 == 1)? huffACvalues[i] : huffDCvalues[i];

            }

            previoussize += huffmantablesize + 17;

        }

        //Set real HT segment length

        length = 2+previoussize;

        headerlength += length;

        jpegheader->ht.Length[0] = (length & 0xff00) >> 8;

        jpegheader->ht.Length[1] = length & 0xff;

        //Reset marker segment

      /*  jpegheader->dri.DRIMarker[0] = 0xff;

        jpegheader->dri.DRIMarker[1] = 0xdd;

        jpegheader->dri.Length[0] = 0x00;

        jpegheader->dri.Length[1] = 0x04;

        jpegheader->dri.RestartInteral[0] = 0x00; //no restart markers

        jpegheader->dri.RestartInteral[1] = 0x00; //no restart markers

        headerlength  += 6;  //length of DRI segment

       */

        //Start of Scan Header Segment

        jpegheader->sos.SOSMarker[0] = 0xff;

        jpegheader->sos.SOSMarker[1] = 0xda;

        length = 6 + (components<<1);

        headerlength += length;

        jpegheader->sos.Length[0] = (length & 0xff00) >> 8;

        jpegheader->sos.Length[1] =  length & 0xff;

        jpegheader->sos.ComponentCount = components; //number of color components in the image

        jpegheader->sos.Component[0][0] = 0x01; //Y component

        jpegheader->sos.Component[0][1] = 0x00; //indexes of huffman tables for Y-component

        if (components == 0x03) {

                jpegheader->sos.Component[1][0] = 0x02; //the CB component

                jpegheader->sos.Component[1][1] = 0x11; //indexes of huffman tables for CB-component

                jpegheader->sos.Component[2][0] = 0x03; //The CR component

                jpegheader->sos.Component[2][1] = 0x11; //indexes of huffman tables for CR-component

        }

        //following bytes are ignored since progressive scan is not to be implemented

        jpegheader->sos.Ignore[0] = 0x00;

        jpegheader->sos.Ignore[1] = 0x3f;

        jpegheader->sos.Ignore[2] = 0x00;

        sysace_fwrite(jpegheader, 1, headerlength, file);

        xil_printf("jpeg header size %x\r\n", headerlength);

}

void writejpegfooter(FILE * file)

{

        unsigned char footer[2];

        footer[0] = 0xff;

        footer[1] = 0xd9;

//        fseek(file,0,SEEK_END);

        sysace_fwrite(footer,sizeof(footer),1,file);

}