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blender-archive/source/blender/imbuf/intern
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Lukas Stockner 0f2ae614a1 Use mmap() IO for reading uncompressed .blends 
Instead of submitting tons of tiny IO syscalls, we can speed things up
significantly by `mmap`ing the .blend file into virtual memory and directly
accessing it.

In my local testing, this speeds up loading the Dweebs file with all its
linked files from 19sec to 10sec (on Linux).

As far as I can see, this should be supported on Linux, OSX and BSD.
For Windows, a second code path uses `CreateFileMapping` and
`MapViewOfFile` to achieve the same result.

Reviewed By: mont29, brecht

Differential Revision: https://developer.blender.org/D8246
2021-01-14 22:03:29 +01:00
..
cineon
Fix DPX image output having invalid float metadata
2020-12-07 17:09:34 +01:00
dds
Cleanup: various clang tidy fixes
2020-12-09 16:29:11 +01:00
oiio
Cleanup: various clang tidy fixes
2020-12-09 16:29:11 +01:00
openexr
Fix T84167: Saving half-float EXR might result in NaN pixels
2021-01-14 14:54:08 +01:00
allocimbuf.c
Use mmap() IO for reading uncompressed .blends
2021-01-14 22:03:29 +01:00
anim_movie.c
Cleanup: replace 'long long' with int64_t in imbuf indexer
2021-01-12 23:31:34 +11:00
bmp.c
Fix T82602: checking image header reads past buffer bounds
2020-11-11 16:14:09 +11:00
cache.c
Cleanup: use doxy sections for imbuf
2020-09-14 17:59:21 +10:00
colormanagement_inline.c
Cleanup: make format after SortedIncludes change
2020-03-19 09:33:58 +01:00
colormanagement.c
Cleanup: Split SEQ_sequencer.h file
2020-12-19 07:25:01 +01:00
divers.c
Cleanup: use doxy sections for imbuf
2020-09-14 17:59:21 +10:00
filetype.c
Cleanup: remove unnecessary ImFileType.ftype callback
2020-11-13 11:28:24 +11:00
filter.c
Cleanup: Clang-Tidy bugprone-incorrect-roundings fixes
2020-09-04 16:23:08 +02:00
imageprocess.c
Image: Export emissive colors in 3 channel PNG images
2020-10-19 11:29:47 +02:00
IMB_allocimbuf.h
Use mmap() IO for reading uncompressed .blends
2021-01-14 22:03:29 +01:00
IMB_anim.h
Cleanup: use C comments for descriptive text
2020-10-10 22:04:51 +11:00
IMB_colormanagement_intern.h
Code Style: use "#pragma once" in source directory
2020-08-07 09:50:34 +02:00
IMB_filetype.h
Cleanup: use IMB_FTYPE_NONE instead of 0 for imbuf format comparison
2020-11-13 20:32:15 +11:00
IMB_filter.h
Code Style: use "#pragma once" in source directory
2020-08-07 09:50:34 +02:00
IMB_indexer.h
Cleanup: replace 'long long' with int64_t in imbuf indexer
2021-01-12 23:31:34 +11:00
imbuf.h
Code Style: use "#pragma once" in source directory
2020-08-07 09:50:34 +02:00
indexer.c
Cleanup: use exact check for fread, move out of the loop
2021-01-12 23:31:34 +11:00
iris.c
Fix T82602: checking image header reads past buffer bounds
2020-11-11 16:14:09 +11:00
jp2.c
Fix T82602: checking image header reads past buffer bounds
2020-11-11 16:14:09 +11:00
jpeg.c
Cleanup: reduce indirect DNA header inclusion
2020-12-15 12:34:14 +11:00
metadata.c
Cleanup: reduce indirect DNA header inclusion
2020-12-15 12:34:14 +11:00
module.c
Cleanup: make format after SortedIncludes change
2020-03-19 09:33:58 +01:00
moviecache.c
Cleanup: use array syntax for sizeof with fixed values
2020-08-08 13:38:00 +10:00
png.c
Cleanup: reduce indirect DNA header inclusion
2020-12-15 12:34:14 +11:00
radiance_hdr.c
Fix T82602: checking image header reads past buffer bounds
2020-11-11 16:14:09 +11:00
readimage.c
Use mmap() IO for reading uncompressed .blends
2021-01-14 22:03:29 +01:00
rectop.c
Cleanup: spelling
2020-11-12 11:35:31 +11:00
rotate.c
Cleanup: use array syntax for sizeof with fixed values
2020-08-08 13:38:00 +10:00
scaling.c
Cleanup: use C comments for descriptive text
2020-10-10 22:04:51 +11:00
stereoimbuf.c
Cleanup: use doxy sections for imbuf
2020-09-14 17:59:21 +10:00
targa.c
Fix T82602: checking image header reads past buffer bounds
2020-11-11 16:14:09 +11:00
thumbs_blend.c
Asset System: Various changes to previews in preparation for Asset Browser
2020-12-15 17:03:45 +01:00
thumbs_font.c
Cleanup: make format after SortedIncludes change
2020-03-19 09:33:58 +01:00
thumbs.c
Spelling: Loose Versus Lose
2020-10-19 09:15:34 -07:00
tiff.c
Fix T82602: checking image header reads past buffer bounds
2020-11-11 16:14:09 +11:00
util_gpu.c
Cleanup: docy comments beginning with '/**' don't end with '**/'
2021-01-04 17:38:11 +11:00
util.c
Cleanup: use IMB_FTYPE_NONE instead of 0 for imbuf format comparison
2020-11-13 20:32:15 +11:00
writeimage.c
Cleanup: remove unnecessary ImFileType.ftype callback
2020-11-13 11:28:24 +11:00