Fix renderer, add image decode/code methods
This commit is contained in:
Simon Robertshaw
parent
ab7cd2e5f6
commit
2c7b8a6902
@ -48,6 +48,10 @@ extern unsigned int fire_alpha[CELL*3][CELL*3];
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extern pixel *fire_bg;
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extern pixel *pers_bg;
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void *ptif_pack(pixel *src, int w, int h, int *result_size);
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pixel *ptif_unpack(void *datain, int size, int *w, int *h);
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pixel *rescale_img(pixel *src, int sw, int sh, int *qw, int *qh, int f);
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void sdl_blit_1(int x, int y, int w, int h, pixel *src, int pitch);
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105
src/graphics.c
105
src/graphics.c
@ -33,6 +33,111 @@ unsigned int fire_alpha[CELL*3][CELL*3];
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pixel *fire_bg;
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pixel *pers_bg;
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void *ptif_pack(pixel *src, int w, int h, int *result_size){
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int i = 0, datalen = (w*h)*3, cx = 0, cy = 0;
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unsigned char *red_chan = calloc(1, w*h);
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unsigned char *green_chan = calloc(1, w*h);
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unsigned char *blue_chan = calloc(1, w*h);
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unsigned char *data = malloc(((w*h)*3)+8);
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unsigned char *result = malloc(((w*h)*3)+8);
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for(cx = 0; cx<w; cx++){
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for(cy = 0; cy<h; cy++){
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red_chan[w*(cy)+(cx)] = PIXR(src[w*(cy)+(cx)]);
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green_chan[w*(cy)+(cx)] = PIXG(src[w*(cy)+(cx)]);
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blue_chan[w*(cy)+(cx)] = PIXB(src[w*(cy)+(cx)]);
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}
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}
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memcpy(data, red_chan, w*h);
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memcpy(data+(w*h), green_chan, w*h);
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memcpy(data+((w*h)*2), blue_chan, w*h);
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free(red_chan);
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free(green_chan);
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free(blue_chan);
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result[0] = 'P';
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result[1] = 'T';
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result[2] = 'i';
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result[3] = 1;
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result[4] = w;
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result[5] = w>>8;
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result[6] = h;
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result[7] = h>>8;
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i -= 8;
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if(BZ2_bzBuffToBuffCompress((char *)(result+8), (unsigned *)&i, (char *)data, datalen, 9, 0, 0) != BZ_OK){
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free(data);
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free(result);
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return NULL;
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}
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*result_size = i+8;
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free(data);
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return result;
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}
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pixel *ptif_unpack(void *datain, int size, int *w, int *h){
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int width, height, i, cx, cy;
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unsigned char *red_chan;
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unsigned char *green_chan;
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unsigned char *blue_chan;
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unsigned char *data = datain;
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unsigned char *undata;
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pixel *result;
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if(size<16){
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printf("Image empty\n");
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return NULL;
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}
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if(!(data[0]=='P' && data[1]=='T' && data[2]=='i')){
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printf("Image header invalid\n");
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return NULL;
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}
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width = data[4]|(data[5]<<8);
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height = data[6]|(data[7]<<8);
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undata = calloc(1, (width*height)*3);
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red_chan = calloc(1, width*height);
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green_chan = calloc(1, width*height);
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blue_chan = calloc(1, width*height);
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result = calloc(width*height, PIXELSIZE);
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if (BZ2_bzBuffToBuffDecompress((char *)undata, (unsigned *)&i, (char *)(data+8), size-8, 0, 0)){
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printf("Decompression failure\n");
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free(red_chan);
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free(green_chan);
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free(blue_chan);
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free(undata);
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return NULL;
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}
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if(i != (width*height)*3){
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printf("Result buffer size mismatch\n");
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free(red_chan);
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free(green_chan);
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free(blue_chan);
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free(undata);
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return NULL;
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}
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memcpy(red_chan, undata, width*height);
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memcpy(green_chan, undata+(width*height), width*height);
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memcpy(blue_chan, undata+((width*height)*2), width*height);
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for(cx = 0; cx<width; cx++){
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for(cy = 0; cy<height; cy++){
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result[width*(cy)+(cx)] = PIXRGB(red_chan[width*(cy)+(cx)], green_chan[width*(cy)+(cx)], blue_chan[width*(cy)+(cx)]);
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}
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}
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*w = width;
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*h = height;
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free(red_chan);
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free(green_chan);
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free(blue_chan);
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free(undata);
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return result;
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}
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pixel *rescale_img(pixel *src, int sw, int sh, int *qw, int *qh, int f)
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{
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int i,j,x,y,w,h,r,g,b,c;
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41
src/main.c
41
src/main.c
@ -1322,6 +1322,7 @@ int main(int argc, char *argv[])
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parts[NPART-1].life = -1;
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pfree = 0;
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decorations = calloc((XRES+BARSIZE)*YRES, PIXELSIZE);
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pers_bg = calloc((XRES+BARSIZE)*YRES, PIXELSIZE);
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fire_bg = calloc(XRES*YRES, PIXELSIZE);
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@ -1346,20 +1347,34 @@ int main(int argc, char *argv[])
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info_box(vid_buf, "Save file invalid or from newer version");
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}
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f=fopen(argv[2],"wb");
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fprintf(f,"P6\n%d %d\n255\n",XRES,YRES);
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for (j=0; j<YRES; j++)
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{
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for (i=0; i<XRES; i++)
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{
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c[0] = PIXR(vid_buf[i]);
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c[1] = PIXG(vid_buf[i]);
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c[2] = PIXB(vid_buf[i]);
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fwrite(c,3,1,f);
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if(!strncmp(argv[3], "pti", 3)){
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char * datares = NULL, *scaled_buf;
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int res = 0, sw, sh;
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scaled_buf = rescale_img(vid_buf, XRES, YRES, &sw, &sh, 4);
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datares = ptif_pack(scaled_buf, sw, sh, &res);
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if(datares!=NULL){
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f=fopen(argv[2], "wb");
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fwrite(datares, res, 1, f);
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fclose(f);
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free(datares);
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}
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vid_buf+=XRES+BARSIZE;
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free(scaled_buf);
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} else {
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f=fopen(argv[2],"wb");
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fprintf(f,"P6\n%d %d\n255\n",XRES,YRES);
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for (j=0; j<YRES; j++)
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{
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for (i=0; i<XRES; i++)
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{
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c[0] = PIXR(vid_buf[i]);
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c[1] = PIXG(vid_buf[i]);
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c[2] = PIXB(vid_buf[i]);
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fwrite(c,3,1,f);
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}
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vid_buf+=XRES+BARSIZE;
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}
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fclose(f);
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}
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fclose(f);
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return 1;
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}
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@ -1481,7 +1496,7 @@ int main(int argc, char *argv[])
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pygood = 0;
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}
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#else
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printf("python console disabled at compile time.");
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printf("python console disabled at compile time.\n");
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#endif
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#ifdef MT
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