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vga: fix text mode updating

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With both text (curses) and graphics (vnc/sdl/spice/...) display active
vga text mode emulation fails to update both correctly.  Depending on
whenever vga_update_text() or vga_draw_text() happens to be called first
only the text display or only the graphics display will see display
resolution changes and full redraws.

Fix it by calling both text/gfx resize functions in both code paths and
keep track of full screen redraws needed in VGACommonState fields.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-10-09 17:10:13 +02:00
parent e250d949fe
commit 9678aedd8e
2 changed files with 21 additions and 0 deletions
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19
hw/vga.c
View file

@ -1346,6 +1346,7 @@ static void vga_draw_text(VGACommonState *s, int full_update)
s->last_scr_width = width * cw;
s->last_scr_height = height * cheight;
qemu_console_resize(s->ds, s->last_scr_width, s->last_scr_height);
dpy_text_resize(s->ds, width, height);
s->last_depth = 0;
s->last_width = width;
s->last_height = height;
@ -1359,6 +1360,14 @@ static void vga_draw_text(VGACommonState *s, int full_update)
palette = s->last_palette;
x_incr = cw * ((ds_get_bits_per_pixel(s->ds) + 7) >> 3);
if (full_update) {
s->full_update_text = 1;
}
if (s->full_update_gfx) {
s->full_update_gfx = 0;
full_update |= 1;
}
cursor_offset = ((s->cr[VGA_CRTC_CURSOR_HI] << 8) |
s->cr[VGA_CRTC_CURSOR_LO]) - s->start_addr;
if (cursor_offset != s->cursor_offset ||
@ -2052,7 +2061,9 @@ static void vga_update_text(void *opaque, console_ch_t *chardata)
cw != s->last_cw || cheight != s->last_ch) {
s->last_scr_width = width * cw;
s->last_scr_height = height * cheight;
qemu_console_resize(s->ds, s->last_scr_width, s->last_scr_height);
dpy_text_resize(s->ds, width, height);
s->last_depth = 0;
s->last_width = width;
s->last_height = height;
s->last_ch = cheight;
@ -2060,6 +2071,14 @@ static void vga_update_text(void *opaque, console_ch_t *chardata)
full_update = 1;
}
if (full_update) {
s->full_update_gfx = 1;
}
if (s->full_update_text) {
s->full_update_text = 0;
full_update |= 1;
}
/* Update "hardware" cursor */
cursor_offset = ((s->cr[VGA_CRTC_CURSOR_HI] << 8) |
s->cr[VGA_CRTC_CURSOR_LO]) - s->start_addr;

2
hw/vga_int.h
View file

@ -154,6 +154,8 @@ typedef struct VGACommonState {
vga_hw_invalidate_ptr invalidate;
vga_hw_screen_dump_ptr screen_dump;
vga_hw_text_update_ptr text_update;
bool full_update_text;
bool full_update_gfx;
/* hardware mouse cursor support */
uint32_t invalidated_y_table[VGA_MAX_HEIGHT / 32];
void (*cursor_invalidate)(struct VGACommonState *s);