Bochs/bochs/iodev/display/voodoo.h

/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2012-2017  The Bochs Project
//
//  This library is free software; you can redistribute it and/or
//  modify it under the terms of the GNU Lesser General Public
//  License as published by the Free Software Foundation; either
//  version 2 of the License, or (at your option) any later version.
//
//  This library is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//  Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with this library; if not, write to the Free Software
//  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA

#ifndef BX_IODEV_VOODOO_H
#define BX_IODEV_VOODOO_H

#define BX_VOODOO_THIS theVoodooDevice->
#define BX_VOODOO_THIS_PTR theVoodooDevice
#define BX_VVGA_THIS theVoodooVga->
#define BX_VVGA_THIS_PTR theVoodooVga

typedef struct {
  Bit8u model;
  struct {
    Bit32u width;
    Bit32u height;
    Bit64u htotal_usec;
    Bit64u vtotal_usec;
    Bit64u hsync_usec;
    Bit64u vsync_usec;
    double htime_to_pixel;
    Bit64u frame_start;
    bx_bool clock_enabled;
    bx_bool output_on;
    bx_bool override_on;
    bx_bool screen_update_pending;
    bx_bool gui_update_pending;
  } vdraw;
  int mode_change_timer_id;
  int vertical_timer_id;
  Bit8u devfunc;
  Bit16u max_xres;
  Bit16u max_yres;
  Bit16u num_x_tiles;
  Bit16u num_y_tiles;
  bx_bool  *vga_tile_updated;
} bx_voodoo_t;


class bx_voodoo_c : public bx_nonvga_device_c {
public:
  bx_voodoo_c();
  virtual ~bx_voodoo_c();
  virtual void init(void);
  virtual void reset(unsigned type);
  virtual void register_state(void);
  virtual void after_restore_state(void);

  virtual void refresh_display(void *this_ptr, bx_bool redraw);
  virtual void redraw_area(unsigned x0, unsigned y0,
                           unsigned width, unsigned height);
  virtual void update(void);

  virtual void pci_write_handler(Bit8u address, Bit32u value, unsigned io_len);

  static Bit32u get_retrace(bx_bool hv);
  static void output_enable(bx_bool enabled);
  static void update_screen_start(void);
  static bx_bool update_timing(void);
  Bit8u get_model(void) {return s.model;}

  void banshee_draw_hwcursor(unsigned xc, unsigned yc, bx_svga_tileinfo_t *info);
  void set_tile_updated(unsigned xti, unsigned yti, bx_bool flag);

  Bit32u banshee_blt_reg_read(Bit8u reg);
  void   banshee_blt_reg_write(Bit8u reg, Bit32u value);

private:
  bx_voodoo_t s;

  static void    set_irq_level(bx_bool level);

  static bx_bool mem_read_handler(bx_phy_address addr, unsigned len, void *data, void *param);
  static bx_bool mem_write_handler(bx_phy_address addr, unsigned len, void *data, void *param);

  static void mode_change_timer_handler(void *);
  static void vertical_timer_handler(void *);

  void banshee_pci_write_handler(Bit8u address, Bit32u value, unsigned io_len);

  static Bit32u banshee_read_handler(void *this_ptr, Bit32u address, unsigned io_len);
  static void   banshee_write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);

  void banshee_mem_read(bx_phy_address addr, unsigned len, void *data);
  void banshee_mem_write(bx_phy_address addr, unsigned len, void *data);

  Bit32u banshee_agp_reg_read(Bit8u reg);
  void   banshee_agp_reg_write(Bit8u reg, Bit32u value);

  void   banshee_blt_launch_area_setup(void);
  void   banshee_blt_launch_area_write(Bit32u value);
  void   banshee_blt_execute(void);
  void   banshee_blt_complete(void);
  void   banshee_blt_apply_clipwindow(int *x0, int *y0, int *x1, int *y1, int *w, int *h);

  void   banshee_blt_rectangle_fill(void);
  void   banshee_blt_pattern_fill_mono(void);
  void   banshee_blt_pattern_fill_color(void);
  void   banshee_blt_screen_to_screen(void);
  void   banshee_blt_screen_to_screen_pattern(void);
  void   banshee_blt_host_to_screen(void);
  void   banshee_blt_line(bx_bool pline);
};

class bx_voodoo_vga_c : public bx_vgacore_c {
public:
  bx_voodoo_vga_c();
  virtual ~bx_voodoo_vga_c();

  virtual void   reset(unsigned type);
  virtual void   register_state(void);
  virtual void   after_restore_state(void);

  virtual Bit8u  mem_read(bx_phy_address addr);
  virtual void   mem_write(bx_phy_address addr, Bit8u value);

  virtual void   redraw_area(unsigned x0, unsigned y0,
                             unsigned width, unsigned height);

  virtual bx_bool init_vga_extension(void);
  virtual void   get_crtc_params(bx_crtc_params_t *crtcp);
  bx_bool get_retrace(void);

  void banshee_update_mode(void);
  void banshee_set_dac_mode(bx_bool mode);
  void banshee_set_vclk3(Bit32u value);

  static Bit32u banshee_vga_read_handler(void *this_ptr, Bit32u address, unsigned io_len);
  static void   banshee_vga_write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);

protected:
  virtual void  update(void);
};
#endif