void CalcMD5Digest(const unsigned char *data, size_t byteCount, unsigned char digest[16])
{
fz_md5 md5;
fz_md5_init(&md5);
#ifdef _WIN64
for (; byteCount > UINT_MAX; data += UINT_MAX, byteCount -= UINT_MAX)
fz_md5_update(&md5, data, UINT_MAX);
#endif
fz_md5_update(&md5, data, (unsigned int)byteCount);
fz_md5_final(&md5, digest);
}
void fz_md5_pixmap(fz_pixmap *pix, unsigned char digest[16])
{
fz_md5 md5;
fz_md5_init(&md5);
if (pix)
fz_md5_update(&md5, pix->samples, pix->w * pix->h * pix->n);
fz_md5_final(&md5, digest);
}
static void
res_font_get_md5(fz_context *ctx, fz_buffer *buffer, unsigned char *digest)
{
fz_md5 state;
fz_md5_init(&state);
fz_md5_update(&state, buffer->data, buffer->len);
fz_md5_final(&state, digest);
}
static void
res_image_get_md5(fz_context *ctx, fz_image *image, unsigned char *digest)
{
fz_pixmap *pixmap;
fz_md5 state;
pixmap = fz_get_pixmap_from_image(ctx, image, 0, 0);
fz_md5_init(&state);
fz_md5_update(&state, pixmap->samples, pixmap->w * pixmap->h * pixmap->n);
fz_md5_final(&state, digest);
fz_drop_pixmap(ctx, pixmap);
}
static void
res_image_get_md5(fz_context *ctx, fz_image *image, unsigned char *digest)
{
fz_pixmap *pixmap;
fz_md5 state;
int h;
unsigned char *d;
pixmap = fz_get_pixmap_from_image(ctx, image, NULL, NULL, 0, 0);
fz_md5_init(&state);
d = pixmap->samples;
h = pixmap->h;
while (h--)
{
fz_md5_update(&state, d, pixmap->w * pixmap->n);
d += pixmap->stride;
}
fz_md5_final(&state, digest);
fz_drop_pixmap(ctx, pixmap);
}
static void drawpage(xps_context *ctx, int pagenum)
{
xps_page *page;
fz_display_list *list;
fz_device *dev;
int start;
int code;
if (showtime)
{
start = gettime();
}
code = xps_load_page(&page, ctx, pagenum - 1);
if (code)
die(fz_rethrow(code, "cannot load page %d in file '%s'", pagenum, filename));
list = NULL;
if (uselist)
{
list = fz_new_display_list();
dev = fz_new_list_device(list);
xps_run_page(ctx, page, dev, fz_identity);
fz_free_device(dev);
}
if (showxml)
{
dev = fz_new_trace_device();
printf("<page number=\"%d\">\n", pagenum);
if (list)
fz_execute_display_list(list, dev, fz_identity, fz_infinite_bbox);
else
xps_run_page(ctx, page, dev, fz_identity);
printf("</page>\n");
fz_free_device(dev);
}
if (showtext)
{
fz_text_span *text = fz_new_text_span();
dev = fz_new_text_device(text);
if (list)
fz_execute_display_list(list, dev, fz_identity, fz_infinite_bbox);
else
xps_run_page(ctx, page, dev, fz_identity);
fz_free_device(dev);
printf("[Page %d]\n", pagenum);
if (showtext > 1)
fz_debug_text_span_xml(text);
else
fz_debug_text_span(text);
printf("\n");
fz_free_text_span(text);
}
if (showmd5 || showtime)
printf("page %s %d", filename, pagenum);
if (output || showmd5 || showtime)
{
float zoom;
fz_matrix ctm;
fz_rect rect;
fz_bbox bbox;
fz_pixmap *pix;
rect.x0 = rect.y0 = 0;
rect.x1 = page->width;
rect.y1 = page->height;
zoom = resolution / 96;
ctm = fz_translate(0, -page->height);
ctm = fz_concat(ctm, fz_scale(zoom, zoom));
bbox = fz_round_rect(fz_transform_rect(ctm, rect));
/* TODO: banded rendering and multi-page ppm */
pix = fz_new_pixmap_with_rect(colorspace, bbox);
if (savealpha)
fz_clear_pixmap(pix);
else
fz_clear_pixmap_with_color(pix, 255);
dev = fz_new_draw_device(glyphcache, pix);
if (list)
fz_execute_display_list(list, dev, ctm, bbox);
else
xps_run_page(ctx, page, dev, ctm);
fz_free_device(dev);
if (output)
{
char buf[512];
sprintf(buf, output, pagenum);
if (strstr(output, ".pgm") || strstr(output, ".ppm") || strstr(output, ".pnm"))
fz_write_pnm(pix, buf);
else if (strstr(output, ".pam"))
fz_write_pam(pix, buf, savealpha);
else if (strstr(output, ".png"))
fz_write_png(pix, buf, savealpha);
}
if (showmd5)
{
fz_md5 md5;
unsigned char digest[16];
int i;
fz_md5_init(&md5);
fz_md5_update(&md5, pix->samples, pix->w * pix->h * pix->n);
fz_md5_final(&md5, digest);
printf(" ");
for (i = 0; i < 16; i++)
printf("%02x", digest[i]);
}
fz_drop_pixmap(pix);
}
if (list)
fz_free_display_list(list);
if (showtime)
{
int end = gettime();
int diff = end - start;
if (diff < timing.min)
{
timing.min = diff;
timing.minpage = pagenum;
}
if (diff > timing.max)
{
timing.max = diff;
timing.maxpage = pagenum;
}
timing.total += diff;
timing.count ++;
printf(" %dms", diff);
}
if (showmd5 || showtime)
printf("\n");
}
