index 62a8717bb2c0e83bb4ad6b4a8ef0534bc0083765..1501afcbecb91699ac83b4c227033a5adebe11ba 100644 (file)
*/
#include <assert.h>
+#include <string.h>
#include "display/nr-arena-item.h"
#include "display/nr-filter-types.h"
memset(NR_PIXBLOCK_PX(result), 0, size);
if (fabs(trans[1]) > 1e-6 || fabs(trans[2]) > 1e-6) {
- transform_nearest(result, final_usr, trans);
+ transform_bicubic(result, final_usr, trans);
} else if (fabs(trans[0] - 1) > 1e-6 || fabs(trans[3] - 1) > 1e-6) {
scale_bicubic(result, final_usr);
} else {
void FilterSlot::set(int slot_nr, NRPixBlock *pb)
{
- int index = _get_index(slot_nr);
+ /* Unnamed slot is for saving filter primitive results, when parameter
+ * 'result' is not set. Only the filter immediately after this one
+ * can access unnamed results, so we don't have to worry about overwriting
+ * previous results in filter chain. On the other hand, we may not
+ * overwrite any other image with this one, because they might be
+ * accessed later on. */
+ int index = ((slot_nr != NR_FILTER_SLOT_NOT_SET)
+ ? _get_index(slot_nr)
+ : _get_index(NR_FILTER_UNNAMED_SLOT));
assert(index >= 0);
+ // Unnamed slot is only for NR::FilterSlot internal use.
+ assert(slot_nr != NR_FILTER_UNNAMED_SLOT);
assert(slot_nr == NR_FILTER_SLOT_NOT_SET ||_slot_number[index] == slot_nr);
if (slot_nr == NR_FILTER_SOURCEGRAPHIC || slot_nr == NR_FILTER_BACKGROUNDIMAGE) {
min_x, min_y,
max_x, max_y, true);
if (trans_pb->size != NR_PIXBLOCK_SIZE_TINY && trans_pb->data.px == NULL) {
- // memory allocation failed
+ /* TODO: this gets hit occasionally. Worst case scenario:
+ * images are exported in horizontal stripes. One stripe
+ * is not too high, but can get thousands of pixels wide.
+ * Rotate this 45 degrees -> _huge_ image */
+ g_warning("Memory allocation failed in NR::FilterSlot::set (transform)");
return;
}
- transform_nearest(trans_pb, pb, trans);
+ transform_bicubic(trans_pb, pb, trans);
nr_pixblock_release(pb);
delete pb;
pb = trans_pb;
nr_pixblock_setup_fast(trans_pb, pb->mode,
min_x, min_y, max_x, max_y, true);
if (trans_pb->size != NR_PIXBLOCK_SIZE_TINY && trans_pb->data.px == NULL) {
- //memory allocation failed
+ g_warning("Memory allocation failed in NR::FilterSlot::set (scaling)");
return;
}
scale_bicubic(trans_pb, pb);
slot_nr == NR_FILTER_BACKGROUNDIMAGE ||
slot_nr == NR_FILTER_BACKGROUNDALPHA ||
slot_nr == NR_FILTER_FILLPAINT ||
- slot_nr == NR_FILTER_STROKEPAINT);
+ slot_nr == NR_FILTER_STROKEPAINT ||
+ slot_nr == NR_FILTER_UNNAMED_SLOT);
int index = -1;
if (slot_nr == NR_FILTER_SLOT_NOT_SET) {
int seek = _slot_count;
do {
seek--;
- } while (_slot_number[seek] == NR_FILTER_SLOT_NOT_SET && seek >= 0);
+ } while ((seek >= 0) && (_slot_number[seek] == NR_FILTER_SLOT_NOT_SET));
/* If there is no space for more slots, create more space */
if (seek == _slot_count - 1) {
NRPixBlock **new_slot = new NRPixBlock*[_slot_count * 2];