static void record_startpage(struct _gfxdevice*dev, int width, int height)
{
internal_t*i = (internal_t*)dev->internal;
msg("<trace> record: %08x STARTPAGE\n", dev);
writer_writeU8(&i->w, OP_STARTPAGE);
writer_writeU16(&i->w, width);
writer_writeU16(&i->w, height);
}
static void dumpImage(writer_t*w, state_t*state, gfximage_t*img)
{
int oldpos = w->pos;
writer_writeU16(w, img->width);
writer_writeU16(w, img->height);
#ifdef COMPRESS_IMAGES
//35.3% images (2027305 bytes) (with filter, Z_BEST_COMPRESSION)
//39.9% images (2458904 bytes) (with filter, Z_BEST_SPEED)
//45.2% images (3055340 bytes) (without filter)
//45.9% images (3149247 bytes) (without filter, 5)
//48.0% images (3480495 bytes) (with filter, fastlz)
//48.0% images (3488650 bytes) (without filter, Z_BEST_SPEED)
//55.3% images (4665889 bytes) (without filter, fastlz level 2)
//55.6% images (4726334 bytes) (without filter, fastlz level 1)
//83.0% images (18091804 bytes) (no compression)
gfxcolor_t*image;
#ifdef FILTER_IMAGES
unsigned char*filter = malloc(img->height);
int y;
image = malloc(img->width*img->height*sizeof(gfxcolor_t));
for(y=0;y<img->height;y++) {
filter[y] = png_apply_filter_32(
(void*)&image[y*img->width],
(void*)&img->data[y*img->width], img->width, y);
}
#else
image = img->data;
#endif
int size = img->width*img->height;
uLongf compressdata_size = compressBound(size*sizeof(gfxcolor_t));
void*compressdata = malloc(compressdata_size);
#ifdef HAVE_FASTLZ
compressdata_size = fastlz_compress_level(2, (void*)image, size*sizeof(gfxcolor_t), compressdata);
#else
compress2(compressdata, &compressdata_size, (void*)image, sizeof(gfxcolor_t)*size, Z_BEST_SPEED);
#endif
writer_writeU32(w, compressdata_size);
#ifdef FILTER_IMAGES
w->write(w, filter, img->height);
free(filter);
free(image);
#endif
w->write(w, compressdata, compressdata_size);
free(compressdata);
#else
w->write(w, img->data, img->width*img->height*sizeof(gfxcolor_t));
#endif
#ifdef STATS
state->size_images += w->pos - oldpos;
#endif
}
