hvirtual/quicktime/ctab.c

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#include <stdio.h>
#include "funcprotos.h"
#include "quicktime.h"

int quicktime_ctab_init(quicktime_ctab_t *ctab)
{
        ctab->seed = 0;
        ctab->flags = 0;
        ctab->size = 0;
        ctab->alpha = 0;
        ctab->red = 0;
        ctab->green = 0;
        ctab->blue = 0;
        return 0;
}

int quicktime_ctab_delete(quicktime_ctab_t *ctab)
{
        if(ctab->alpha) free(ctab->alpha);
        if(ctab->red) free(ctab->red);
        if(ctab->green) free(ctab->green);
        if(ctab->blue) free(ctab->blue);
        return 0;
}

void quicktime_ctab_dump(quicktime_ctab_t *ctab)
{
        int i;
        printf(" color table\n");
        printf("  seed %ld\n", ctab->seed);
        printf("  flags %ld\n", ctab->flags);
        printf("  size %ld\n", ctab->size);
        printf("  colors ");
        for(i = 0; i < ctab->size; i++)
        {
                printf("[%d %d %d %d]", ctab->red[i], ctab->green[i], ctab->blue[i], ctab->alpha[i]);
        }
        printf("\n");
}

int quicktime_read_ctab(quicktime_t *file, quicktime_ctab_t *ctab)
{
        int i;
        
        ctab->seed = quicktime_read_int32(file);
        ctab->flags = quicktime_read_int16(file);
        ctab->size = quicktime_read_int16(file) + 1;
        ctab->alpha = malloc(sizeof(int16_t) * ctab->size);
        ctab->red = malloc(sizeof(int16_t) * ctab->size);
        ctab->green = malloc(sizeof(int16_t) * ctab->size);
        ctab->blue = malloc(sizeof(int16_t) * ctab->size);
        
        for(i = 0; i < ctab->size; i++)
        {
                ctab->alpha[i] = quicktime_read_int16(file);
                ctab->red[i] = quicktime_read_int16(file);
                ctab->green[i] = quicktime_read_int16(file);
                ctab->blue[i] = quicktime_read_int16(file);
        }

        return 0;
}

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