WRITEONLY/READONLY.
Added those flags to the internal Lock() calls.
Only copy the surface from screen to surface if not writeonly.
Restrict blitting between display window and surface to the
locked/unlocked rectangle and the clipwindow section.
Added defines for DDHAL_UNLOCKDATA/DDHAL_LOCKDATA, added calls to HAL
implementation.
Major DirectDraw restructure/reimplementation, using an improved component
object model hierarchy. The implementation currently supports:
- DirectDraw over GDI/USER in a window (using DIBsections and
asynchronous updates)
- XVidMode
- XF86DGA2
- All DirectDraw interfaces from versions 1 to 7 (at least in theory)
- Hooks for Direct3D interfaces
Matthew Bloch