remove RC enable flag,  use RC Mode to indicate RC on or off
Merge pull request #638 from volvet/refine_enc_para

remove RC enable flag,  use RC Mode to indicate RC on or off
update pre-processing workflow for screen content
Add the new x86 assembly source files to the msvc project files
Merge pull request #641 from ruil2/enc_update

update pre-processing workflow for screen content
Merge pull request #640 from mstorsjo/update-msvc-proj

Add the new x86 assembly source files to the msvc project files