4 Commits

Author	SHA1	Message	Date
James Zern	d21b479581	Merge "windows: add decode threading support"	2011-08-05 16:31:50 -07:00
James Zern	473ae95324	fix hang on thread creation failure ... with assertions enabled the code would abort in WebPWorkerChangeState with: Assertion `worker->status_ >= OK' without them the code would hang in the _cond_wait. this change makes WebPWorkerChangeState a no-op in this case. Change-Id: Iea855568bbdef2865ae61ab54473b3a7c230e91a	2011-08-05 15:01:16 -07:00
James Zern	fccca4202f	windows: add decode threading support ... Change-Id: Iad923550569ceec1ff469852ec68e66de3f6062b	2011-08-05 12:28:40 -07:00
Pascal Massimino	fc7815d692	multi-thread decoding: ~25-30% faster ... To be enabled with the flag WEBP_USE_THREAD. For now it's only available on unix (pthread), when using Makefile.unix Will be switched on more generally later. In-loop filtering and output (=rescaling/yuv->rgb conversion) is done in parallel to bitstream decoding, lagging 1 row behind. Example: examples/dwebp bryce.webp -v Time to decode picture: 0.680s examples/dwebp bryce.webp -v -mt Time to decode picture: 0.515s Change-Id: Ic30a897423137a3bdace9c4e30465ef758fe53f2	2011-07-22 15:14:18 -07:00