Bochs/bochs/gui/svga.cc
Volker Ruppert 43d5bef9ed - preparing all display libraries (guis) to support graphics modes > 8bpp
(based on a patch from Christopher Nelson <paradox@BBHC.ORG>)
  * the win32 gui changes the bitmap settings using the bpp argument
  * added stubs for all guis except win32
  * descriptions of function dimension_update() updated
2003-06-28 08:04:31 +00:00

520 lines
13 KiB
C++

//
// 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#define _MULTI_THREAD
// Define BX_PLUGGABLE in files that can be compiled into plugins. For
// platforms that require a special tag on exported symbols, BX_PLUGGABLE
// is used to know when we are exporting symbols and when we are importing.
#define BX_PLUGGABLE
#include "bochs.h"
#if BX_WITH_SVGA
#include <stdlib.h>
#include </usr/include/vga.h>
#include <vgagl.h>
#include <vgakeyboard.h>
#include <vgamouse.h>
#include "font/vga.bitmap.h"
#include "icon_bochs.h"
class bx_svga_gui_c : public bx_gui_c {
public:
bx_svga_gui_c (void);
DECLARE_GUI_VIRTUAL_METHODS()
virtual void set_display_mode (disp_mode_t newmode);
};
// declare one instance of the gui object and call macro to insert the
// plugin code
static bx_svga_gui_c *theGui = NULL;
IMPLEMENT_GUI_PLUGIN_CODE(svga)
#define LOG_THIS theGui->
static unsigned res_x, res_y;
static int fontwidth = 8, fontheight = 16;
static unsigned tilewidth, tileheight;
static unsigned char vgafont[256 * 16];
static int clut8 = 0;
GraphicsContext *screen = NULL;
static int save_vga_mode;
static int save_vga_pal[256 * 3];
void keyboard_handler(int scancode, int press);
void mouse_handler(int button, int dx, int dy, int dz,
int drx, int dry, int drz);
unsigned char reverse_byteorder(unsigned char b)
{
unsigned char ret = 0;
for (unsigned i=0;i<8;i++){
ret |= (b & 0x01) << (7 - i);
b >>= 1;
}
return ret;
}
void create_vga_font()
{
memcpy(vgafont, bx_vgafont, sizeof(bx_vgafont));
for (unsigned i=0;i< sizeof(bx_vgafont);i++) {
vgafont[i] = reverse_byteorder(vgafont[i]);
}
}
bx_svga_gui_c::bx_svga_gui_c ()
{
put("SVGA");
}
void bx_svga_gui_c::specific_init(
int argc,
char **argv,
unsigned x_tilesize,
unsigned y_tilesize,
unsigned header_bar_y)
{
tilewidth = x_tilesize;
tileheight = y_tilesize;
if(vga_init() != 0 )
{
LOG_THIS setonoff(LOGLEV_PANIC, ACT_FATAL);
BX_PANIC (("Unable to initialize SVGAlib"));
return;
}
screen = gl_allocatecontext();
dimension_update(640,400);
create_vga_font();
gl_setfont(8, 16, (void *)vgafont);
gl_setwritemode(FONT_COMPRESSED);
keyboard_init();
keyboard_seteventhandler((__keyboard_handler) keyboard_handler);
vga_setmousesupport(1);
mouse_seteventhandler((__mouse_handler) mouse_handler);
if (vga_ext_set(VGA_EXT_AVAILABLE, VGA_AVAIL_FLAGS) & VGA_CLUT8) {
vga_ext_set(VGA_EXT_SET, VGA_CLUT8);
clut8 = 1;
}
// Save settings to prepare for mode transition in set_display_mode.
// If DISP_MODE_SIM is called first, these values will be used.
save_vga_mode = vga_getcurrentmode();
vga_getpalvec(0, 256, save_vga_pal);
}
void bx_svga_gui_c::text_update(
Bit8u *old_text,
Bit8u *new_text,
unsigned long cursor_x,
unsigned long cursor_y,
bx_vga_tminfo_t tm_info,
unsigned rows)
{
unsigned x, y, i;
unsigned char achar;
unsigned chars, cols;
char s[] = " ";
static int previ;
int cursori;
cols = res_x/fontwidth;
cursori = (cursor_y*cols + cursor_x) * 2;
chars = cols*rows;
for (i=0; i<chars*2; i+=2) {
if (i == cursori || i == previ || old_text[i] != new_text[i] ||
old_text[i+1] != new_text[i+1]) {
s[0] = new_text[i];
x = (i/2) % cols;
y = (i/2) / cols;
if (i == cursori) {
gl_setfontcolors(new_text[i+1] & 0x0F, (new_text[i+1] & 0xF0) >> 4);
} else {
gl_setfontcolors((new_text[i+1] & 0xF0) >> 4, new_text[i+1] & 0x0F);
}
gl_write(x * fontwidth, y * fontheight, s);
}
}
previ = cursori;
}
int
bx_svga_gui_c::get_clipboard_text(Bit8u **bytes, Bit32s *nbytes)
{
return 0;
}
int
bx_svga_gui_c::set_clipboard_text(char *text_snapshot, Bit32u len)
{
return 0;
}
void bx_svga_gui_c::graphics_tile_update(
Bit8u *snapshot,
unsigned x,
unsigned y)
{
gl_putbox(x, y, tilewidth, tileheight, snapshot);
}
static Bit32u vga_to_bx_key(int key)
{
switch (key) {
case SCANCODE_ESCAPE: return BX_KEY_ESC;
case SCANCODE_1: return BX_KEY_1;
case SCANCODE_2: return BX_KEY_2;
case SCANCODE_3: return BX_KEY_3;
case SCANCODE_4: return BX_KEY_4;
case SCANCODE_5: return BX_KEY_5;
case SCANCODE_6: return BX_KEY_6;
case SCANCODE_7: return BX_KEY_7;
case SCANCODE_8: return BX_KEY_8;
case SCANCODE_9: return BX_KEY_9;
case SCANCODE_0: return BX_KEY_0;
case SCANCODE_MINUS: return BX_KEY_MINUS;
case SCANCODE_EQUAL: return BX_KEY_EQUALS;
case SCANCODE_TAB: return BX_KEY_TAB;
case SCANCODE_BACKSPACE: return BX_KEY_BACKSPACE;
case SCANCODE_Q: return BX_KEY_Q;
case SCANCODE_W: return BX_KEY_W;
case SCANCODE_E: return BX_KEY_E;
case SCANCODE_R: return BX_KEY_R;
case SCANCODE_T: return BX_KEY_T;
case SCANCODE_Y: return BX_KEY_Y;
case SCANCODE_U: return BX_KEY_U;
case SCANCODE_I: return BX_KEY_I;
case SCANCODE_O: return BX_KEY_O;
case SCANCODE_P: return BX_KEY_P;
case SCANCODE_BRACKET_LEFT: return BX_KEY_LEFT_BRACKET;
case SCANCODE_BRACKET_RIGHT: return BX_KEY_RIGHT_BRACKET;
case SCANCODE_ENTER: return BX_KEY_ENTER;
case SCANCODE_LEFTCONTROL: return BX_KEY_CTRL_L;
case SCANCODE_A: return BX_KEY_A;
case SCANCODE_S: return BX_KEY_S;
case SCANCODE_D: return BX_KEY_D;
case SCANCODE_F: return BX_KEY_F;
case SCANCODE_G: return BX_KEY_G;
case SCANCODE_H: return BX_KEY_H;
case SCANCODE_J: return BX_KEY_J;
case SCANCODE_K: return BX_KEY_K;
case SCANCODE_L: return BX_KEY_L;
case SCANCODE_SEMICOLON: return BX_KEY_SEMICOLON;
case SCANCODE_APOSTROPHE: return BX_KEY_SINGLE_QUOTE;
case SCANCODE_GRAVE: return BX_KEY_GRAVE;
case SCANCODE_LEFTSHIFT: return BX_KEY_SHIFT_L;
case SCANCODE_BACKSLASH: return BX_KEY_BACKSLASH;
case SCANCODE_Z: return BX_KEY_Z;
case SCANCODE_X: return BX_KEY_X;
case SCANCODE_C: return BX_KEY_C;
case SCANCODE_V: return BX_KEY_V;
case SCANCODE_B: return BX_KEY_B;
case SCANCODE_N: return BX_KEY_N;
case SCANCODE_M: return BX_KEY_M;
case SCANCODE_COMMA: return BX_KEY_COMMA;
case SCANCODE_PERIOD: return BX_KEY_PERIOD;
case SCANCODE_SLASH: return BX_KEY_SLASH;
case SCANCODE_RIGHTSHIFT: return BX_KEY_SHIFT_R;
case SCANCODE_KEYPADMULTIPLY: return BX_KEY_KP_MULTIPLY;
case SCANCODE_LEFTALT: return BX_KEY_ALT_L;
case SCANCODE_SPACE: return BX_KEY_SPACE;
case SCANCODE_CAPSLOCK: return BX_KEY_CAPS_LOCK;
case SCANCODE_F1: return BX_KEY_F1;
case SCANCODE_F2: return BX_KEY_F2;
case SCANCODE_F3: return BX_KEY_F3;
case SCANCODE_F4: return BX_KEY_F4;
case SCANCODE_F5: return BX_KEY_F5;
case SCANCODE_F6: return BX_KEY_F6;
case SCANCODE_F7: return BX_KEY_F7;
case SCANCODE_F8: return BX_KEY_F8;
case SCANCODE_F9: return BX_KEY_F9;
case SCANCODE_F10: return BX_KEY_F10;
case SCANCODE_NUMLOCK: return BX_KEY_NUM_LOCK;
case SCANCODE_SCROLLLOCK: return BX_KEY_SCRL_LOCK;
case SCANCODE_KEYPAD7: return BX_KEY_KP_HOME;
case SCANCODE_KEYPAD8: return BX_KEY_KP_UP;
case SCANCODE_KEYPAD9: return BX_KEY_KP_PAGE_UP;
case SCANCODE_KEYPADMINUS: return BX_KEY_KP_SUBTRACT;
case SCANCODE_KEYPAD4: return BX_KEY_KP_LEFT;
case SCANCODE_KEYPAD5: return BX_KEY_KP_5;
case SCANCODE_KEYPAD6: return BX_KEY_KP_RIGHT;
case SCANCODE_KEYPADPLUS: return BX_KEY_KP_ADD;
case SCANCODE_KEYPAD1: return BX_KEY_KP_END;
case SCANCODE_KEYPAD2: return BX_KEY_KP_DOWN;
case SCANCODE_KEYPAD3: return BX_KEY_KP_PAGE_DOWN;
case SCANCODE_KEYPAD0: return BX_KEY_KP_INSERT;
// case SCANCODE_KEYPADPERIOD: return BX_KEY_KP_; /* ??? */
// case SCANCODE_LESS: return BX_KEY_KP_LESS; /* ??? */
case SCANCODE_F11: return BX_KEY_F11;
case SCANCODE_F12: return BX_KEY_F12;
case SCANCODE_KEYPADENTER: return BX_KEY_KP_ENTER;
case SCANCODE_RIGHTCONTROL: return BX_KEY_CTRL_R;
case SCANCODE_KEYPADDIVIDE: return BX_KEY_KP_DIVIDE;
case SCANCODE_PRINTSCREEN: return BX_KEY_PRINT;
case SCANCODE_RIGHTALT: return BX_KEY_ALT_R;
case SCANCODE_BREAK: return BX_KEY_PAUSE;
case SCANCODE_HOME: return BX_KEY_HOME;
case SCANCODE_CURSORBLOCKUP: return BX_KEY_UP;
case SCANCODE_PAGEUP: return BX_KEY_PAGE_UP;
case SCANCODE_CURSORBLOCKLEFT: return BX_KEY_LEFT;
case SCANCODE_CURSORBLOCKRIGHT: return BX_KEY_RIGHT;
case SCANCODE_END: return BX_KEY_END;
case SCANCODE_CURSORBLOCKDOWN: return BX_KEY_DOWN;
case SCANCODE_PAGEDOWN: return BX_KEY_PAGE_DOWN;
case SCANCODE_INSERT: return BX_KEY_INSERT;
case SCANCODE_REMOVE: return BX_KEY_DELETE;
case SCANCODE_RIGHTWIN: return BX_KEY_WIN_R;
case SCANCODE_LEFTWIN: return BX_KEY_WIN_L;
default: return 0;
}
}
void keyboard_handler(int scancode, int press)
{
if (scancode != SCANCODE_F12) {
int bx_key = vga_to_bx_key(scancode);
Bit32u key_state;
if (press) {
key_state = BX_KEY_PRESSED;
} else {
key_state = BX_KEY_RELEASED;
}
DEV_kbd_gen_scancode(bx_key | key_state);
} else {
BX_INFO(("F12 pressed"));
// show runtime options menu, which uses stdin/stdout
SIM->configuration_interface (NULL, CI_RUNTIME_CONFIG);
}
}
void mouse_handler(int button, int dx, int dy, int dz,
int drx, int dry, int drz)
{
char a[100];
int buttons = 0;
if (button & MOUSE_LEFTBUTTON) {
buttons |= 0x01;
}
if (button & MOUSE_RIGHTBUTTON) {
buttons |= 0x02;
}
DEV_mouse_motion((int) (0.25 * dx), (int) -(0.25 * dy), buttons);
}
void bx_svga_gui_c::handle_events(void)
{
keyboard_update();
keyboard_clearstate();
mouse_update();
}
void bx_svga_gui_c::flush(void)
{
gl_copyscreen(screen);
}
void bx_svga_gui_c::clear_screen(void)
{
gl_clearscreen(0);
}
bx_bool bx_svga_gui_c::palette_change(
unsigned index,
unsigned red,
unsigned green,
unsigned blue)
{
if( index > 255 ) return 0;
// without VGA_CLUT8 extension we have only 6 bits for each r,g,b value
if (!clut8 && (red > 63 || green > 63 || blue > 63)) {
red = red >> 2;
green = green >> 2;
blue = blue >> 2;
}
vga_setpalette(index, red, green, blue);
return 1;
}
void bx_svga_gui_c::dimension_update(
unsigned x,
unsigned y,
unsigned fheight,
unsigned fwidth,
unsigned bpp)
{
int newmode;
// TODO: remove this stupid check whenever the vga driver is fixed
if( y == 208 ) y = 200;
if (bpp > 8) {
BX_PANIC(("%d bpp graphics mode not supported yet", bpp));
}
if( fheight > 0 )
{
fontheight = fheight;
if (fwidth != 8) {
x = x * 8 / fwidth;
}
fontwidth = 8;
}
if( (x == res_x) && (y == res_y )) return;
if (x == 640 && y == 480) {
newmode = G640x480x256;
} else if (x == 640 && y == 400) {
newmode = G640x400x256;
} else if (x == 320 && y == 200) {
newmode = G320x200x256;
}
if (!vga_hasmode(newmode)) {
newmode = G640x480x256; // trying "default" mode...
}
if (vga_setmode(newmode) != 0)
{
LOG_THIS setonoff(LOGLEV_PANIC, ACT_FATAL);
BX_PANIC (("Unable to set requested videomode: %ix%i", x, y));
}
gl_setcontextvga(newmode);
gl_getcontext(screen);
gl_setcontextvgavirtual(newmode);
save_vga_mode = newmode;
res_x = x;
res_y = y;
}
unsigned bx_svga_gui_c::create_bitmap(
const unsigned char *bmap,
unsigned xdim,
unsigned ydim)
{
return 0;
}
unsigned bx_svga_gui_c::headerbar_bitmap(
unsigned bmap_id,
unsigned alignment,
void (*f)(void))
{
return 0;
}
void bx_svga_gui_c::replace_bitmap(
unsigned hbar_id,
unsigned bmap_id)
{
}
void bx_svga_gui_c::show_headerbar(void)
{
}
void bx_svga_gui_c::mouse_enabled_changed_specific (bx_bool val)
{
}
void headerbar_click(int x)
{
}
void bx_svga_gui_c::exit(void)
{
vga_setmode(TEXT);
keyboard_close();
mouse_close();
}
void
bx_svga_gui_c::set_display_mode (disp_mode_t newmode)
{
// if no mode change, do nothing.
if (disp_mode == newmode) return;
// remember the display mode for next time
disp_mode = newmode;
switch (newmode) {
case DISP_MODE_CONFIG:
BX_DEBUG (("switch to configuration mode (back to console)"));
// remember old values and switch to text mode
save_vga_mode = vga_getcurrentmode();
vga_getpalvec(0, 256, save_vga_pal);
keyboard_close();
vga_setmode(TEXT);
break;
case DISP_MODE_SIM:
BX_DEBUG (("switch to simulation mode (fullscreen)"));
keyboard_init();
keyboard_seteventhandler((__keyboard_handler) keyboard_handler);
vga_setmode(save_vga_mode);
vga_setpalvec(0, 256, save_vga_pal);
break;
}
}
#endif /* if BX_WITH_SVGA */