diff options
Diffstat (limited to 'source/blender/blenkernel/intern/library.c')
| -rw-r--r-- | source/blender/blenkernel/intern/library.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/library.c b/source/blender/blenkernel/intern/library.c index 8bb2864a604..1466cdfa921 100644 --- a/source/blender/blenkernel/intern/library.c +++ b/source/blender/blenkernel/intern/library.c @@ -119,6 +119,9 @@ #include "RNA_access.h" +#include "IMB_imbuf.h" +#include "IMB_imbuf_types.h" + #ifdef WITH_PYTHON #include "BPY_extern.h" #endif @@ -1097,6 +1100,8 @@ void BKE_main_free(Main *mainvar) ListBase *lbarray[MAX_LIBARRAY]; int a; + MEM_SAFE_FREE(mainvar->blen_thumb); + a = set_listbasepointers(mainvar, lbarray); while (a--) { ListBase *lb = lbarray[a]; @@ -1166,6 +1171,74 @@ void BKE_main_unlock(struct Main *bmain) BLI_spin_unlock((SpinLock *) bmain->lock); } +/** + * Generates a raw .blend file thumbnail data from given image. + * + * \param bmain If not NULL, also store generated data in this Main. + * \param img ImBuf image to generate thumbnail data from. + * \return The generated .blend file raw thumbnail data. + */ +BlendThumbnail *BKE_main_thumbnail_from_imbuf(Main *bmain, ImBuf *img) +{ + BlendThumbnail *data = NULL; + + if (bmain) { + MEM_SAFE_FREE(bmain->blen_thumb); + } + + if (img) { + const size_t sz = BLEN_THUMB_MEMSIZE(img->x, img->y); + data = MEM_mallocN(sz, __func__); + + IMB_rect_from_float(img); /* Just in case... */ + data->width = img->x; + data->height = img->y; + memcpy(data->rect, img->rect, sz - sizeof(*data)); + } + + if (bmain) { + bmain->blen_thumb = data; + } + return data; +} + +/** + * Generates an image from raw .blend file thumbnail \a data. + * + * \param bmain Use this bmain->blen_thumb data if given \a data is NULL. + * \param data Raw .blend file thumbnail data. + * \return An ImBuf from given data, or NULL if invalid. + */ +ImBuf *BKE_main_thumbnail_to_imbuf(Main *bmain, BlendThumbnail *data) +{ + ImBuf *img = NULL; + + if (!data && bmain) { + data = bmain->blen_thumb; + } + + if (data) { + /* Note: we cannot use IMB_allocFromBuffer(), since it tries to dupalloc passed buffer, which will fail + * here (we do not want to pass the first two ints!). */ + img = IMB_allocImBuf((unsigned int)data->width, (unsigned int)data->height, 32, IB_rect | IB_metadata); + memcpy(img->rect, data->rect, BLEN_THUMB_MEMSIZE(data->width, data->height) - sizeof(*data)); + } + + return img; +} + +/** + * Generates an empty (black) thumbnail for given Main. + */ +void BKE_main_thumbnail_create(struct Main *bmain) +{ + MEM_SAFE_FREE(bmain->blen_thumb); + + bmain->blen_thumb = MEM_callocN(BLEN_THUMB_MEMSIZE(BLEN_THUMB_SIZE, BLEN_THUMB_SIZE), __func__); + bmain->blen_thumb->width = BLEN_THUMB_SIZE; + bmain->blen_thumb->height = BLEN_THUMB_SIZE; +} + /* ***************** ID ************************ */ ID *BKE_libblock_find_name_ex(struct Main *bmain, const short type, const char *name) { |