/**
* jbig2_add_page_result: composite a decoding result onto a page
*
* this is called to add the results of segment decode (when it
* is an image) to a page image buffer
**/
int
jbig2_page_add_result(Jbig2Ctx *ctx, Jbig2Page *page, Jbig2Image *image,
int x, int y, Jbig2ComposeOp op)
{
/* ensure image exists first */
if (page->image == NULL)
{
jbig2_error(ctx, JBIG2_SEVERITY_WARNING, -1,
"page info possibly missing, no image defined");
return 0;
}
/* grow the page to accomodate a new stripe if necessary */
if (page->striped) {
int new_height = y + image->height + page->end_row;
if (page->image->height < new_height) {
jbig2_error(ctx, JBIG2_SEVERITY_DEBUG, -1,
"growing page buffer to %d rows "
"to accomodate new stripe", new_height);
jbig2_image_resize(ctx, page->image,
page->image->width, new_height);
}
}
jbig2_image_compose(ctx, page->image, image,
x, y + page->end_row, op);
return 0;
}
/**
* jbig2_add_page_result: composite a decoding result onto a page
*
* this is called to add the results of segment decode (when it
* is an image) to a page image buffer
**/
int
jbig2_page_add_result(Jbig2Ctx *ctx, Jbig2Page *page, Jbig2Image *image,
int x, int y, Jbig2ComposeOp op)
{
/* grow the page to accomodate a new stripe if necessary */
if (page->striped) {
int new_height = y + image->height + page->end_row;
if (page->image->height < new_height) {
jbig2_error(ctx, JBIG2_SEVERITY_DEBUG, -1,
"growing page buffer to %d rows "
"to accomodate new stripe", new_height);
jbig2_image_resize(ctx, page->image,
page->image->width, new_height);
}
}
jbig2_image_compose(ctx, page->image, image,
x, y + page->end_row, JBIG2_COMPOSE_OR);
return 0;
}