diff options
author | Harley Acheson <harley.acheson@gmail.com> | 2022-05-05 02:55:59 +0300 |
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committer | Harley Acheson <harley.acheson@gmail.com> | 2022-05-05 02:55:59 +0300 |
commit | 8960c6e06017a3c3fc90c5745433009c00e64c1b (patch) | |
tree | 89f12f886c8d9b7b6f2412a47daf45053695c2d0 /source/blender/imbuf/intern/thumbs.c | |
parent | ed0964c97623a7542dab900ebda900f3953db4bb (diff) |
IMBUF: Faster JPEG Thumbnails
Make preview thumbnails of JPEG files in less time and with less RAM.
See D14727 for more details.
Differential Revision: https://developer.blender.org/D14727
Reviewed by Brecht Van Lommel
Diffstat (limited to 'source/blender/imbuf/intern/thumbs.c')
-rw-r--r-- | source/blender/imbuf/intern/thumbs.c | 53 |
1 files changed, 13 insertions, 40 deletions
diff --git a/source/blender/imbuf/intern/thumbs.c b/source/blender/imbuf/intern/thumbs.c index 37734ebacb2..d546d170568 100644 --- a/source/blender/imbuf/intern/thumbs.c +++ b/source/blender/imbuf/intern/thumbs.c @@ -319,11 +319,7 @@ static ImBuf *thumb_create_ex(const char *file_path, char tdir[FILE_MAX]; char temp[FILE_MAX]; char mtime[40] = "0"; /* in case we can't stat the file */ - char cwidth[40] = "0"; /* in case images have no data */ - char cheight[40] = "0"; short tsize = 128; - short ex, ey; - float scaledx, scaledy; BLI_stat_t info; switch (size) { @@ -340,15 +336,6 @@ static ImBuf *thumb_create_ex(const char *file_path, return NULL; /* unknown size */ } - /* exception, skip images over 100mb */ - if (source == THB_SOURCE_IMAGE) { - const size_t file_size = BLI_file_size(file_path); - if (file_size != -1 && file_size > THUMB_SIZE_MAX) { - // printf("file too big: %d, skipping %s\n", (int)size, file_path); - return NULL; - } - } - if (get_thumb_dir(tdir, size)) { BLI_snprintf(tpath, FILE_MAX, "%s%s", tdir, thumb); // thumb[8] = '\0'; /* shorten for tempname, not needed anymore */ @@ -368,7 +355,7 @@ static ImBuf *thumb_create_ex(const char *file_path, if (img == NULL) { switch (source) { case THB_SOURCE_IMAGE: - img = IMB_loadiffname(file_path, IB_rect | IB_metadata, NULL); + img = IMB_thumb_load_image(file_path, tsize, NULL); break; case THB_SOURCE_BLEND: img = IMB_thumb_load_blend(file_path, blen_group, blen_id); @@ -385,8 +372,6 @@ static ImBuf *thumb_create_ex(const char *file_path, if (BLI_stat(file_path, &info) != -1) { BLI_snprintf(mtime, sizeof(mtime), "%ld", (long int)info.st_mtime); } - BLI_snprintf(cwidth, sizeof(cwidth), "%d", img->x); - BLI_snprintf(cheight, sizeof(cheight), "%d", img->y); } } else if (THB_SOURCE_MOVIE == source) { @@ -411,28 +396,20 @@ static ImBuf *thumb_create_ex(const char *file_path, return NULL; } - if (img->x > img->y) { - scaledx = (float)tsize; - scaledy = ((float)img->y / (float)img->x) * tsize; - } - else { - scaledy = (float)tsize; - scaledx = ((float)img->x / (float)img->y) * tsize; - } - /* Scaling down must never assign zero width/height, see: T89868. */ - ex = MAX2(1, (short)scaledx); - ey = MAX2(1, (short)scaledy); - - /* save some time by only scaling byte buf */ - if (img->rect_float) { - if (img->rect == NULL) { - IMB_rect_from_float(img); + if (img->x > tsize || img->y > tsize) { + float scale = MIN2((float)tsize / (float)img->x, (float)tsize / (float)img->y); + /* Scaling down must never assign zero width/height, see: T89868. */ + short ex = MAX2(1, (short)(img->x * scale)); + short ey = MAX2(1, (short)(img->y * scale)); + /* Save some time by only scaling byte buf */ + if (img->rect_float) { + if (img->rect == NULL) { + IMB_rect_from_float(img); + } + imb_freerectfloatImBuf(img); } - - imb_freerectfloatImBuf(img); + IMB_scaleImBuf(img, ex, ey); } - - IMB_scaleImBuf(img, ex, ey); } BLI_snprintf(desc, sizeof(desc), "Thumbnail for %s", uri); IMB_metadata_ensure(&img->metadata); @@ -443,10 +420,6 @@ static ImBuf *thumb_create_ex(const char *file_path, if (use_hash) { IMB_metadata_set_field(img->metadata, "X-Blender::Hash", hash); } - if (ELEM(source, THB_SOURCE_IMAGE, THB_SOURCE_BLEND, THB_SOURCE_FONT)) { - IMB_metadata_set_field(img->metadata, "Thumb::Image::Width", cwidth); - IMB_metadata_set_field(img->metadata, "Thumb::Image::Height", cheight); - } img->ftype = IMB_FTYPE_PNG; img->planes = 32; |