void flush_line(int y)
{
int target_y = y;
char *addr;
if (linear_mem != NULL && !need_dither)
return;
addr = gfxvidinfo.linemem;
if (addr == NULL)
addr = gfxvidinfo.bufmem + y*gfxvidinfo.rowbytes;
if (linear_mem == NULL) {
if (target_y < modeinfo.height && target_y >= 0) {
if (need_dither) {
DitherLine (dither_buf, (uae_u16 *)addr, 0, y, gfxvidinfo.width, bit_unit);
addr = dither_buf;
}
vga_drawscanline(target_y, addr);
}
} else {
if (need_dither && target_y >= 0) {
DitherLine (linear_mem + modeinfo.linewidth * target_y, (uae_u16 *)addr, 0, y,
gfxvidinfo.width, bit_unit);
}
}
}
void d_raster_update(void)
{
int i, inc;
register byte *vbuf;
inc = (raster_curmode.w*raster_curmode.bpp+7)/8;
vbuf = raster_vbuf;
for(i = 0; i < raster_curmode.h; i++, vbuf += inc)
vga_drawscanline(i, vbuf);
return;
}
void handle_events (void)
{
int button = mouse_getbutton ();
gui_requested = 0;
keyboard_update ();
mouse_update ();
lastmx += mouse_getx ();
lastmy += mouse_gety ();
mouse_setposition (0, 0);
buttonstate[0] = button & 4;
buttonstate[1] = button & 2;
buttonstate[2] = button & 1;
#ifdef PICASSO96
if (screen_is_picasso && !picasso_vidinfo.extra_mem) {
int i;
char *addr = gfxmemory + (picasso96_state.Address - gfxmem_start);
for (i = 0; i < picasso_vidinfo.height; i++, addr += picasso96_state.BytesPerRow) {
if (!picasso_invalid_lines[i])
continue;
picasso_invalid_lines[i] = 0;
vga_drawscanline (i, addr);
}
}
#endif
if (!screen_is_picasso && gui_requested) {
leave_graphics_mode ();
gui_changesettings ();
enter_graphics_mode (vgamode);
if (linear_mem != NULL && !need_dither)
gfxvidinfo.bufmem = linear_mem;
restore_vga_colors ();
notice_screen_contents_lost ();
}
}
static void testmode(int mode)
{
int xmax, ymax, i, x, y, yw, ys, c;
vga_modeinfo *modeinfo;
vga_setmode(mode);
modeinfo = vga_getmodeinfo(mode);
printf("Width: %d Height: %d Colors: %d\n",
modeinfo->width,
modeinfo->height,
modeinfo->colors);
printf("DisplayStartRange: %xh Maxpixels: %d Blit: %s\n",
modeinfo->startaddressrange,
modeinfo->maxpixels,
modeinfo->haveblit ? "YES" : "NO");
#ifdef TEST_MODEX
if (modeinfo->colors == 256)
printf("Switching to ModeX ... %s\n",
(vga_setmodeX()? "done" : "failed"));
#endif
vga_screenoff();
xmax = vga_getxdim() - 1;
ymax = vga_getydim() - 1;
vga_setcolor(vga_white());
vga_drawline(0, 0, xmax, 0);
vga_drawline(xmax, 0, xmax, ymax);
vga_drawline(xmax, ymax, 0, ymax);
vga_drawline(0, ymax, 0, 0);
/* Draw crosses */
for (i = 0; i <= 15; i++) {
vga_setegacolor(i);
vga_drawline(10 + i * 5, 10, 89 + i * 5, 89);
}
for (i = 0; i <= 15; i++) {
vga_setegacolor(i);
vga_drawline(89 + i * 5, 10, 10 + i * 5, 89);
}
vga_screenon();
ys = 100;
yw = (ymax - 100) / 4;
switch (vga_getcolors()) {
case 256:
/* Draw horizontal color bands using palette */
for (i = 0; i < 60; ++i) {
c = (i * 64) / 60;
vga_setpalette(i + 16, c, c, c);
vga_setpalette(i + 16 + 60, c, 0, 0);
vga_setpalette(i + 16 + (2 * 60), 0, c, 0);
vga_setpalette(i + 16 + (3 * 60), 0, 0, c);
}
line[0] = line[xmax] = 15;
line[1] = line[xmax - 1] = 0;
for (x = 2; x < xmax - 1; ++x)
line[x] = (((x - 2) * 60) / (xmax - 3)) + 16;
for (y = ys; y < ys + yw; ++y) /* gray */
vga_drawscanline(y, line);
for (x = 2; x < xmax - 1; ++x)
line[x] += 60;
ys += yw;
for (y = ys; y < ys + yw; ++y) /* red */
vga_drawscanline(y, line);
for (x = 2; x < xmax - 1; ++x)
line[x] += 60;
ys += yw;
for (y = ys; y < ys + yw; ++y) /* green */
vga_drawscanline(y, line);
for (x = 2; x < xmax - 1; ++x)
line[x] += 60;
ys += yw;
for (y = ys; y < ys + yw; ++y) /* blue */
vga_drawscanline(y, line);
break;
case 1 << 15:
case 1 << 16:
case 1 << 24:
/* Draw horizontal color bands in RGB */
for (x = 2; x < xmax - 1; ++x) {
c = ((x - 2) * 255) / (xmax - 4);
y = ys;
vga_setrgbcolor(c, c, c);
vga_drawline(x, y, x, y + yw - 1);
y += yw;
vga_setrgbcolor(c, 0, 0);
vga_drawline(x, y, x, y + yw - 1);
y += yw;
vga_setrgbcolor(0, c, 0);
vga_drawline(x, y, x, y + yw - 1);
y += yw;
vga_setrgbcolor(0, 0, c);
vga_drawline(x, y, x, y + yw - 1);
}
drawSquares(xmax, ymax);
break;
default:
/* Draw vertical color bars */
if (vga_getcolors() == 16) {
for (i = 0; i < xmax - 1; i++)
line[i] = (i + 2) % 16;
line[0] = line[xmax] = 15;
line[1] = line[xmax - 1] = 0;
}
if (vga_getcolors() == 2) {
for (i = 0; i <= xmax; i++)
line[i] = 0x11;
line[0] = 0x91;
}
for (i = 100; i < ymax - 1; i++)
vga_drawscanline(i, line);
break;
}
if (getchar() == 'd')
vga_dumpregs();
}
