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Bochs/bochs/gui/svga.cc
Volker Ruppert 9189105a0b - prepared support for sending absolute x/y values from the gui to the mouse emulation 
- new gui method set_mouse_mode_absxy() should switch the gui to absolute
    x/y mode
  - new DEV_mouse_motion() argument 'absxy' indicates whether or not the gui
    sends absolute x/y values
  - USB tablet code prepared to use the new feature
  - TODO: implement this feature for each gui (sdl, win32, wx, x, ...)
2012-06-21 17:33:37 +00:00

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/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2009-2012 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
#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"
#include "param_names.h"
#include "iodev.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 unsigned fontwidth, fontheight;
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];
static Bit8u fontbuffer[0x2000];
static bx_bool ctrll_pressed = 0;
static unsigned int text_rows=25, text_cols=80;
static unsigned prev_cursor_x=0;
static unsigned prev_cursor_y=0;
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 header_bar_y)
{
if (vga_init() != 0) {
LOG_THIS setonoff(LOGLEV_PANIC, ACT_FATAL);
BX_PANIC (("Unable to initialize SVGAlib"));
return;
}
screen = gl_allocatecontext();
fontwidth = 8;
fontheight = 16;
dimension_update(640,400);
create_vga_font();
gl_setfont(fontwidth, fontheight, (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)
{
Bit8u *old_line, *new_line;
unsigned int curs, hchars, i, j, offset, rows, x, y;
char s[] = " ";
int fg, bg;
bx_bool force_update = 0, blink_state, blink_mode;
int text_palette[16];
// first check if the screen needs to be redrawn completely
blink_mode = (tm_info->blink_flags & BX_TEXT_BLINK_MODE) > 0;
blink_state = (tm_info->blink_flags & BX_TEXT_BLINK_STATE) > 0;
if (blink_mode) {
if (tm_info->blink_flags & BX_TEXT_BLINK_TOGGLE)
force_update = 1;
}
if (charmap_updated) {
BX_INFO(("charmap update. Font Height is %d", fontheight));
for (unsigned c = 0; c<256; c++) {
if (char_changed[c]) {
j = c * fontheight;
for(i=0; i<fontheight; i++) {
fontbuffer[j++] = vga_charmap[(c<<5)+i];
}
char_changed[c] = 0;
}
}
gl_setfont(fontwidth, fontheight, (void *)fontbuffer);
force_update = 1;
charmap_updated = 0;
}
for (i=0; i<16; i++) {
text_palette[i] = tm_info->actl_palette[i];
}
// invalidate character at previous and new cursor location
if((prev_cursor_y < text_rows) && (prev_cursor_x < text_cols)) {
curs = prev_cursor_y * tm_info->line_offset + prev_cursor_x * 2;
old_text[curs] = ~new_text[curs];
}
if((tm_info->cs_start <= tm_info->cs_end) && (tm_info->cs_start < fontheight) &&
(cursor_y < text_rows) && (cursor_x < text_cols)) {
curs = cursor_y * tm_info->line_offset + cursor_x * 2;
old_text[curs] = ~new_text[curs];
} else {
curs = 0xffff;
}
rows = text_rows;
y = 0;
do {
hchars = text_cols;
new_line = new_text;
old_line = old_text;
x = 0;
offset = y * tm_info->line_offset;
do {
if (force_update || (old_text[0] != new_text[0])
|| (old_text[1] != new_text[1])) {
s[0] = new_text[0];
fg = text_palette[new_text[1] & 0x0F];
if (blink_mode) {
bg = text_palette[(new_text[1] & 0x70) >> 4];
if (!blink_state && (new_text[1] & 0x80))
fg = bg;
} else {
bg = text_palette[(new_text[1] & 0xF0) >> 4];
}
if (offset == curs) {
gl_setfontcolors(fg, bg);
} else {
gl_setfontcolors(bg, fg);
}
gl_write(x * fontwidth, y * fontheight, s);
}
x++;
new_text+=2;
old_text+=2;
offset+=2;
} while (--hchars);
y++;
new_text = new_line + tm_info->line_offset;
old_text = old_line + tm_info->line_offset;
} while (--rows);
prev_cursor_x = cursor_x;
prev_cursor_y = cursor_y;
}
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)
{
if ((y + y_tilesize) > res_y) {
gl_putbox(x, y, x_tilesize, (res_y - y), snapshot);
} else {
gl_putbox(x, y, x_tilesize, y_tilesize, snapshot);
}
}
static Bit32u vga_to_bx_key(int key)
{
ctrll_pressed = 0;
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:
ctrll_pressed = 1;
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)
{
int buttons = 0;
if (button & MOUSE_LEFTBUTTON) {
buttons |= 0x01;
}
if (button & MOUSE_RIGHTBUTTON) {
buttons |= 0x02;
}
if (button & MOUSE_MIDDLEBUTTON) {
buttons |= 0x04;
}
if (ctrll_pressed && ((buttons == 0x04) || (buttons == 0x05))) {
bx_bool old = SIM->get_param_bool(BXPN_MOUSE_ENABLED)->get();
SIM->get_param_bool(BXPN_MOUSE_ENABLED)->set(!old);
} else {
DEV_mouse_motion((int) (0.25 * dx), (int) -(0.25 * dy), 0, buttons, 0);
}
}
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 = 0;
if (bpp > 8) {
BX_PANIC(("%d bpp graphics mode not supported yet", bpp));
}
if(fheight > 0)
{
text_cols = x / fwidth;
text_rows = y / fheight;
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 == 800 && y == 600) {
newmode = G800x600x256;
} else if (x == 1024 && y == 768) {
newmode = G1024x768x256;
}
if (!vga_hasmode(newmode)) {
newmode = G640x480x256; // trying "default" mode...
}
vga_getpalvec(0, 256, save_vga_pal);
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);
vga_setpalvec(0, 256, save_vga_pal);
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 */
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