Commit Graph

30 Commits

Author SHA1 Message Date
Volker Ruppert
78ff38fcf3 Fixed check for unimplemented CMDFIFO and return for now if write would be
valid. The hRetrace value can be set now, since Bochs no longer crashes.
TODO: Implement enough of the FIFO stuff to make the Win9x driver for the
Voodoo2 work.
2017-05-06 10:07:28 +00:00
Volker Ruppert
8b96faf99e Some work on the timing code of the Bochs display adapters.
- Voodoo: Use the VGA/Cirrus timers to drive the gui screen update.
  The vertical retrace emulation is still driven by a separate timer.
- VGA/Cirrus: Since we are using the virtual timer, we also have to read
  time_usec() from it.
- vgacore: removed unused timer methods.
2017-05-01 11:54:12 +00:00
Volker Ruppert
73c914a7f6 - Some work on the Voodoo Graphics emulation (Voodoo2 specific)
- prepared hRetrace value implementation (cannot be enabled yet, since the
    driver passes this test and gets confused in next stage (segfault).
  - Detect CMDFIFO access (not present yet).
  - Report disabling Voodoo graphics mode.
  - TODO #1: Fix Voodoo2 to make it usable.
  - TODO #2: Split update code and drive gui screen updates from the VGA timer
    (finally remove new realtime option again).
2017-05-01 09:11:12 +00:00
Volker Ruppert
d462e52a9d Implemented 'realtime' option for the Voodoo update timer similar to the VGA
realtime option (enabled by default).
2017-04-30 09:07:25 +00:00
Volker Ruppert
a7529c1e75 - Some work on the Voodoo Graphics emulation
- Since we are using the virtual timer, so we have to read time_usec()
    from it, too (TODO: realtime mode is hardcoded, maybe add an option).
  - Voodoo1 and Voodoo2 have different timing register widths.
  - Fixed vertical retrace value returned by get_retrace().
  - Prepared separate hvRetrace register (TODO: hRetrace).
2017-04-29 10:25:57 +00:00
Volker Ruppert
f4bfb6353f - Some work on the Voodoo Graphics emulation
- Store the Voodoo model in structure bx_voodoo_t.
  - The PCI initEnable register of the Voodoo2 model has a read-only secondary
    revision ID in bits 12..15. Now the Voodoo2 is correctly detected by the
    Windows driver, but display is not yet working (blank screen).
  - Reset now disables VGA override.
- PCI: Moved PCI device base class methods to the end of file devices.cc and
  re-define LOG_THIS to use the correct log module and prefix.
2017-04-28 18:45:45 +00:00
Volker Ruppert
d46a9b7205 Some work on the PCI devices code.
- Since the pci_read_handler() method is identical in most devices, move it
  to the base class to reduce code duplication. Only the 'pcidev' device has
  it's own implementation (NOTE: it is not maintained yet).
- Minor other fixes and cleanups in some PCI devices.
2017-03-24 19:57:25 +00:00
Volker Ruppert
458f747b48 Removed unused argc and argv parameters from plugin init functions. 2017-01-28 09:52:09 +00:00
Volker Ruppert
59f5a03af6 Rewrite of the virtual timer code to support both modes at the same timer.
The timers now have a new member 'realtime' and they are driven by the
selected engine. The VGA update timer and the status LED timer now always use
the realtime mode, but the PIT and CMOS RTC depend on the clock options.
2014-10-19 08:54:16 +00:00
Volker Ruppert
773ac518b3 Fixed broken MSVC plugins support (many CDECL additions required)
TODO: check for remaining CDECL issues (hdimage mode 'dll') and update project files
2014-06-08 08:40:08 +00:00
Volker Ruppert
b8d6862dfa Fixed some MSVC warnings 2014-01-25 17:07:10 +00:00
Volker Ruppert
dfae4b45de Voodoo vertical retrace fixes
- vertical retrace bit in status register must be inverted
- implemented registers vRetrace and hvRetrace (vSyncOff only)
2014-01-15 17:29:28 +00:00
Volker Ruppert
fc5c22d78f Implemented more accurate screen update timing calculation using the RAMDAC
video clock. Removed dependencies to the cpu / memory clock.
2014-01-07 22:32:22 +00:00
Volker Ruppert
0b43928f6a Fixed possible segfault caused by Voodoo2 control panel applet.
Added some reserved register names for debug output and minor code cleanup.
2014-01-05 14:01:10 +00:00
Volker Ruppert
2a8a45748f Some fixes for the Voodoo emulation (Voodoo2 still not usable in Win95)
- fixed clock values (assigned to wrong model)
- LFB read/write: don't limit y values to 1023 (4MB now usable this way)
- additional Voodoo2 fbiInit* register writes now handled like the Voodoo1 ones
2014-01-03 16:42:31 +00:00
Volker Ruppert
7173b6ee0f Some work on the Voodoo emulation
- fixed behaviour of the initEnable register
- fixed some uninitialized variables
- some other small fixes and cleanups
2014-01-02 22:34:01 +00:00
Volker Ruppert
98634946e6 Set up the correct clock value for the selected Voodoo model. 2014-01-01 18:23:37 +00:00
Volker Ruppert
401321d500 Added symbol BX_NULL_PREFIX and fixed textconfig log options table.
If log module name not specified, use device log prefix converted to lower
case as the name and simplified setting up some short prefixes.
2013-12-31 09:20:08 +00:00
Volker Ruppert
c6dd095321 Added new method for the init of the readonly registers in the PCI config space
and cleaned up the PCI devices code.
2013-12-30 22:39:21 +00:00
Volker Ruppert
e5ed796acf Some work on the Voodoo emulation
- destructor: free memory only when initialized
- parameter 'enabled' must be initialized with 1 (TODO: fix other plugins)
- PCI register fixes (Voodoo2 now detected, but not usable)
2013-12-30 12:50:34 +00:00
Volker Ruppert
fc4538a131 Some fixes / improvements in logging system
- fixed pluginlog init in non-plugin mode
- reduced logprefix length limit and use it for the related string parameter
- increase the device prefix size to 6
- TODO: change some more device prefixes
2013-12-29 10:41:11 +00:00
Volker Ruppert
ef7e02c12c Added bochsrc option for the Voodoo Graphics emulation. Some code for Voodoo2
model exists, but needs to be verified.
2013-12-22 19:50:29 +00:00
Volker Ruppert
9011005580 fixed some MSVC warnings in the iodev code (vgacore, voodoo, vpc-img, vvfat)
TODO: fix MSVC warnings in the voodoo rasterizer code
2012-11-01 15:43:12 +00:00
Volker Ruppert
9933ffa3d9 vga refresh framework changes
- renamed trigger_timer() methods to refresh_display()
- new argument 'redraw' added to force a refresh of the entire screen
  (used in snapshot mode)
- siminterface method refresh_vga() now checks if the Bochs gui init is complete
- use SIM->refresh_vga() in some more cases
2012-10-28 08:23:39 +00:00
Volker Ruppert
4eae421272 Graphics snapshot feature re-implemented for the new graphics API
- graphics_tile_info() split into a common and specific part
- store snapshot mode in structure bx_svga_tileinfo_t
- in snapshot mode, display adapters copy raw data to buffer
- rewrite of the trigger_timer() code to make it work in all cases
- added new class bx_nonvga_device_c to make forwarding refresh requests to the
  Voodoo adapter possible
2012-10-25 15:53:04 +00:00
Volker Ruppert
26659d5667 - some more work on save/restore support (now almost usable)
- TODO: add graphics snapshot support
2012-10-12 15:14:30 +00:00
Volker Ruppert
a0852c83b9 - continued work on save/restore support (still incomplete) 2012-10-03 08:12:35 +00:00
Volker Ruppert
54063b3e0b - skip screen update if video is unchanged
- some work on save/restore support (not yet complete)
- changed some variable types to bx_bool
2012-10-01 17:02:18 +00:00
Volker Ruppert
0611793f4c - enable Voodoo clock in init()
- don't enable Voodoo mode if hSync or vSync are still 0 to avoid Bochs crash
  (division by zero error)
- handle PCI register 0x40 (initEnable)
- fixed reported display size
2012-09-30 12:11:01 +00:00
Volker Ruppert
5f5d8e2c33 Applied initial version of the 3dfx Voodoo Graphics emulation. The Voodoo core
is based on a patch originally designed for DOSBox. Currently only the Voodoo1
adapter model can be emulation. The emulation is currently slow, but we intend
to clean up and optimize the code. Running the 3D engine in a separate thread
is also planned. To compile with Voodoo support the configure option
"--enable-voodoo" must be used. Then the device can be activated with
"plugin_ctrl: voodoo=1" in bochsrc or on the command line. The device will be
assigned automatically to a PCI slot unless you do that manually. A specific bochsrc
option to select the adapter model will be added when the code has support for it.
2012-09-14 21:50:50 +00:00