PDM defaults to 640x480.
If you set --mon_id to MacRGB12in then it would draw 512x384 inside a 640x480 window.
If you set --mon_id to Multiscan20in then it would try to draw 832x624 inside a 640x480 window and crash.
If you set the Monitors control panel to switch multiscan display from 640x480 to 832x624 and restart then it would crash.
Now it will correctly change the window size every time the mode changes.
Add pixel format and pixel clock to the list of fields that will initiate a recalculation.
If frame rate is less than 24 or greater than 120 then assume 60Hz.
Consider write-only bits: ATI_CLOCK_STROBE can't be read so clear it.
8 bits at Offset 2 is PLL_DATA. If we don't modify PLL_DATA, then insert the current value of PLL_DATA into the value that will be read from ATI_CLOCK_CNTL.
When checking if a particular byte of a register is accessed, check both the starting position (offset) and ending position (offset + size) of the bytes being access.
- Add BAR 2 decode. This BAR isn't actually used by Mac OS X, but decode it anyway just in case.
- Support updating of BARs (using change_one_bar method).
pixel_format is different than pixel_depth.
pixel_format depends on the GPU. A GPU might have multiple formats for the same depth.
We store this in videoctrl so that we can detect changes in pixel_format like we do for pixel_depth and active_width and active_height.
- Add mask so that hardware cursor cannot be drawn beyond the right edge of the frame buffer.
- Add invert pixels. Invert pixels are used in the I-beam cursor and the Watch cursor.
- Fix video vram endianness. It should behave like RAM.
- Add read for registers ENABLE, INT_STATUS, INT_ENABLE.
- Add write for registers CNTTST, INT_ENABLE.
- Add support for 16bpp and 32bpp.
- Add vbl interrupt.
Cherrypicks a small piece of joevt/dingusppc@117ca1e449
so that booting from the 10.2 CD gets past it trying to change the video
mode to 15bpp.
Co-authored-by: joevt <joevt@shaw.ca>
Result of running IWYU (https://include-what-you-use.org/) and
applying most of the suggestions about unncessary includes and
forward declarations.
Was motivated by observing that <thread> was being included in
ppcopcodes.cpp even though it was unused (found while researching
the use of threads), but seems generally good to help with build
times and correctness.
