- Display views now take the Deposterize filter into account when
determining the direct-to-CPU-filtering state.
- GPUSubsystem now combines the RGB666-to-RGB888 conversions and master
brightness steps into a single postprocessing step.
- Do some minor code cleanup.
- An Apple Metal display view requires macOS 10.11 El Capitan or later,
in addition to a Metal-compatible GPU.
- Apple Metal display views have significantly lower CPU usage then
OpenGL display views.
- OpenGL display views now use a shared fetch object to fetch the emulated GPU framebuffers and store them in shared textures within a shared context. In conjunction with the new double-buffering support from the last commit, this eliminates the copying between the framebuffers and each display view.
- OpenGL display views now use shared HQnx LUT textures, rather than having to initialize and maintain a copy of the LUT textures for each display view.
- OpenGL display views no longer perform any rendering while their associated NSView is hidden, improving the performance of creating new display views.
- OpenGL display views can now DMA directly from pinned-memory both custom-sized framebuffers and CPU-pixel-scaled native-sized framebuffers at the same time.
- Framebuffers are now page-aligned on 4KB boundaries. This is to
improve performance when using the framebuffers directly as pinned AGP
memory.
- Framebuffers are now double-buffered. The target buffer index is now
tracked using the bufferIndex field of NDSDisplayInfo.
- Clients may no longer supply their own buffers to
SetCustomFramebufferSize(). Clients must use the pointers supplied by
NDSDisplayInfo.
- The frameskip flag is now set only on line 0 and remains consistent
for all 192 lines of rendering.
- GPUSubsystem no longer needs a special allocater/deallocator for
itself, so it has been reverted back to a standard C++ new/delete.
- Add a GPUClientFetchObject helper class as an aid to clients that
need to read out the framebuffers. (Should probably move to its own
file at some later date.)
This reverts commit 53c4a27aef.
I forgot that these functions are based on element count, not based on
byte count. Rename “length” to “elementCount” for better clarification.
- Fetching and loading of GPU frame data is now performed as two
separate operations.
- Display windows no longer draw concurrently on backgrounds threads;
instead they are updated synchronously.
- Associate the CALayer after the .xib completely loads the NSView for
better compatibility.
- MacOGLDisplayView now creates an NSOpenGLContext instead of a
CGLContextObj, bringing back compatibility with macOS 10.5 Leopard.
- Fix building with the Xcode 3 project.
- Most notably, HandleGPUFrameEndEvent() now sends the entirety of the
NDSDisplayInfo struct to the client.
- The OpenGL blitter now skips the loading, processing and rendering of
disabled screens.
- Begin preparing DisplayView to handle the upcoming Apple Metal
blitter.
- Do some misc. code cleanup and simplification.
- Also disable the 4xBRZ shader for low-tier GPUs. (Testing has shown
that low-tier GPUs have no chance at running this shader in real-time
anyways.)
- Also do some misc. tweaks to other various shaders.
zeromus