openjpeg

Commit Graph

Author	SHA1	Message	Date
Even Rouault	b2cc8f7f81	Optimize reading/write into sparse array	2017-09-01 16:30:50 +02:00
Even Rouault	d1299d9670	Fix compiler warning in release mode	2017-09-01 16:30:39 +02:00
Even Rouault	f9e9942330	Sub-tile decoding: only allocate tile component buffer of the needed dimension Instead of being the full tile size. * Use a sparse array mechanism to store code-blocks and intermediate stages of IDWT. * IDWT, DC level shift and MCT stages are done just on that smaller array. * Improve copy of tile component array to final image, by saving an intermediate buffer. * For full-tile decoding at reduced resolution, only allocate the tile buffer to the reduced size, instead of the full-resolution size.	2017-09-01 16:30:29 +02:00

Author

SHA1

Message

Date

Even Rouault

b2cc8f7f81

Optimize reading/write into sparse array

2017-09-01 16:30:50 +02:00

Even Rouault

d1299d9670

Fix compiler warning in release mode

2017-09-01 16:30:39 +02:00

Even Rouault

f9e9942330

Sub-tile decoding: only allocate tile component buffer of the needed dimension

Instead of being the full tile size.

* Use a sparse array mechanism to store code-blocks and intermediate stages of
  IDWT.
* IDWT, DC level shift and MCT stages are done just on that smaller array.
* Improve copy of tile component array to final image, by saving an intermediate
  buffer.
* For full-tile decoding at reduced resolution, only allocate the tile buffer to
  the reduced size, instead of the full-resolution size.

2017-09-01 16:30:29 +02:00

3 Commits