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Cleanup: separate IMB_thumb_load_blend in multiple functions.

This commit is contained in:
Jeroen Bakker 2021-08-25 09:56:07 +02:00
parent a2597f8b83
commit e91fd3b816
1 changed files with 55 additions and 46 deletions
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101
source/blender/imbuf/intern/thumbs_blend.c
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@ -41,64 +41,73 @@
#include "MEM_guardedalloc.h"
ImBuf *IMB_thumb_load_blend(const char *blen_path, const char *blen_group, const char *blen_id)
static ImBuf *imb_thumb_load_from_blend_id(const char *blen_path,
const char *blen_group,
const char *blen_id)
{
ImBuf *ima = NULL;
LinkNode *ln, *names, *lp, *previews = NULL;
BlendFileReadReport bf_reports = {.reports = NULL};
struct BlendHandle *libfiledata = BLO_blendhandle_from_file(blen_path, &bf_reports);
int idcode = BKE_idtype_idcode_from_name(blen_group);
int i, nprevs, nnames;
if (blen_group && blen_id) {
LinkNode *ln, *names, *lp, *previews = NULL;
BlendFileReadReport bf_reports = {.reports = NULL};
struct BlendHandle *libfiledata = BLO_blendhandle_from_file(blen_path, &bf_reports);
int idcode = BKE_idtype_idcode_from_name(blen_group);
int i, nprevs, nnames;
if (libfiledata == NULL) {
return NULL;
}
if (libfiledata == NULL) {
return ima;
/* NOTE: we should handle all previews for a same group at once, would avoid reopening
* `.blend` file for each and every ID. However, this adds some complexity,
* so keep it for later. */
names = BLO_blendhandle_get_datablock_names(libfiledata, idcode, false, &nnames);
previews = BLO_blendhandle_get_previews(libfiledata, idcode, &nprevs);
BLO_blendhandle_close(libfiledata);
if (!previews || (nnames != nprevs)) {
if (previews != 0) {
/* No previews at all is not a bug! */
printf("%s: error, found %d items, %d previews\n", __func__, nnames, nprevs);
}
/* NOTE: we should handle all previews for a same group at once, would avoid reopening
* `.blend` file for each and every ID. However, this adds some complexity,
* so keep it for later. */
names = BLO_blendhandle_get_datablock_names(libfiledata, idcode, false, &nnames);
previews = BLO_blendhandle_get_previews(libfiledata, idcode, &nprevs);
BLO_blendhandle_close(libfiledata);
if (!previews || (nnames != nprevs)) {
if (previews != 0) {
/* No previews at all is not a bug! */
printf("%s: error, found %d items, %d previews\n", __func__, nnames, nprevs);
}
BLI_linklist_free(previews, BKE_previewimg_freefunc);
BLI_linklist_freeN(names);
return ima;
}
for (i = 0, ln = names, lp = previews; i < nnames; i++, ln = ln->next, lp = lp->next) {
const char *blockname = ln->link;
PreviewImage *img = lp->link;
if (STREQ(blockname, blen_id)) {
if (img) {
ima = BKE_previewimg_to_imbuf(img, ICON_SIZE_PREVIEW);
}
break;
}
}
BLI_linklist_free(previews, BKE_previewimg_freefunc);
BLI_linklist_freeN(names);
return NULL;
}
else {
BlendThumbnail *data;
data = BLO_thumbnail_from_file(blen_path);
ima = BKE_main_thumbnail_to_imbuf(NULL, data);
for (i = 0, ln = names, lp = previews; i < nnames; i++, ln = ln->next, lp = lp->next) {
const char *blockname = ln->link;
PreviewImage *img = lp->link;
if (data) {
MEM_freeN(data);
if (STREQ(blockname, blen_id)) {
if (img) {
ima = BKE_previewimg_to_imbuf(img, ICON_SIZE_PREVIEW);
}
break;
}
}
BLI_linklist_free(previews, BKE_previewimg_freefunc);
BLI_linklist_freeN(names);
return ima;
}
static ImBuf *imb_thumb_load_from_blendfile(const char *blen_path)
{
BlendThumbnail *data = BLO_thumbnail_from_file(blen_path);
ImBuf *ima = BKE_main_thumbnail_to_imbuf(NULL, data);
if (data) {
MEM_freeN(data);
}
return ima;
}
ImBuf *IMB_thumb_load_blend(const char *blen_path, const char *blen_group, const char *blen_id)
{
if (blen_group && blen_id) {
return imb_thumb_load_from_blend_id(blen_path, blen_group, blen_id);
}
else {
return imb_thumb_load_from_blendfile(blen_path);
}
}