Commit Graph

16 Commits

Author SHA1 Message Date
Volker Ruppert
e88f14558d The VSYNC timing is now based on the PIT clock sync mode instead of the VGA
screen update timing mode.
2018-05-21 07:31:18 +00:00
Volker Ruppert
bb88561a43 Retrieve vertical retrace value with method get_crtc_params() (now using a
structure for the returned values calculated from CRTC regs).
2017-11-28 18:05:36 +00:00
Volker Ruppert
d7ab113a95 Improved video clock handling for the retrace timing emulation.
- Added VCLK array and removed hardcoded values.
- Added new method get_crtc_params() to retrieve htotal and vtotal values.
- Cirrus: Set up VCLK registers with default on reset (TODO: VGABIOS should do
  that when setting video mode).
- Voodoo Banshee: Set up VCLK #3 when writing to pllCtrl0 register. VCLK #0 and
  #1 are VGA compatible and VCLK #2 is fixed 50 MHz. Fixed maximum resolution
  based on PLL section of the spec.
2017-10-27 18:49:19 +00:00
Volker Ruppert
26c6c3bfca Moved macros SET_TILE_UPDATED and GET_TILE_UPDATED to vgacore.h to reduce code
duplication.
2017-10-22 10:09:32 +00:00
Volker Ruppert
5ec78eaae2 Modified VGA extension init method. Now it returns 1 if the extension code has
initialized the VGA compatible video memory. If it has returned 0 the VGA core
code sets up the default VGA memory (256k).
2017-10-12 19:18:23 +00:00
Volker Ruppert
d25e85c21a Preparing improved VGA extension support and some VGA / Cirrus cleanups.
- Treat VGA extension name other than "none", "vbe" or "cirrus" as a VGA
  compatible device plugin and try to load it.
- Added new plugin type PLUGTYPE_VGA for such a plugins (interally handled like
  a core plugin).
- Added panic in devices init for the case no VGA compatible plugin is present.
- Added new method vga_redraw_area() that handles the non-VGA and null size
  case. The specific method redraw_area() is called otherwise.
- Moved init_systemtimer() call from extension code to init_standard_vga().
- TODO: Implement VGA subsystem in the Voodoo code to test the new feature.
  Voodoo Banshee 2D accelerator code needs to be written to make this really
  useful.
2017-10-10 18:06:16 +00:00
Volker Ruppert
610cec209d Rewrite of the VGA/Cirrus code to reduce code duplication.
- Moved VGA timer handler to the VGA core and handle the non-VGA case there.
  It calls the specific update() code and finally bx_gui->flush().
- Moved the VGA update frequency parameter handler and the refresh_disply()
  method to the VGA core.
- Store the VGA extension parameter in the VGA core.
- Voodoo: Fixed graphics snapshot.
2017-10-08 07:55:04 +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
76b54ecb61 Renamed bx_pci_device_stub_c to bx_pci_device_c and derive it now from class
bx_devmodel_c. The early version of the combined vga / svga_cirrus code
required the now obsolete implementation. Some related cleanups in the
devices code.
2017-03-26 08:09:28 +00:00
Stanislav Shwartsman
7cf38247e4 fixed warnings and errors which pop up when compiling Bochs with TRUE bool as boolean type instead of Bit32u 2016-06-01 20:29:44 +00:00
Volker Ruppert
cbd147fca3 Fixed and improved text mode CO40.
- vgacore: double font and screen width at half dot clock.
- X gui: improved font bitmap generation to support width > 9.
- win32 gui: adjust values to use existing stretching feature.
- guis rfb, sdl, sdl2, vncsrv and wx: double pixels if font width > 9.
2015-10-24 22:03:51 +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
1fd6745aea Started rewrite of the gui code to make the graphics snapshot independent from
the display adapter code. When ready, the common gui code should handle it
completely. The snapshot handler should set a flag 'snapshot_mode' and then it
should force a display update. The graphics update code should be redirected to
some code that 'draws' to a snapshot buffer. These first steps are done:

- store some guest display settings in the gui code (text / graphics switch,
  x / y resolution and bpp)
- split 8 bpp palette update code in a common and a specific part and store the
  palette values in the gui code
2012-10-14 18:29:44 +00:00
Volker Ruppert
25518fe172 - added save/restore support for the VGA override mode
- store update interval in the vga object
2012-09-11 06:52:11 +00:00
Volker Ruppert
c340da84dd - moved the display adapter emulation to the new subdirectory iodev/display
- TODO #1: update MSVC workspace files
- TODO #2: add Voodoo Graphics emulation
2012-09-10 20:49:29 +00:00