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vga: do not resize the screen on hw_invalidate 

Hi all,
currently vga always resizes the screen when vga_hw_invalidate is called
while this is not required and all the other graphic emulators don't.
This patch fixes it, making vga invalidate behaviour consistent with the
other emulated devices.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
This commit is contained in:
Stefano Stabellini 2009-08-03 16:14:39 +01:00 committed by Anthony Liguori
parent ae2883471b
commit 0bd8246bfe
2 changed files with 4 additions and 3 deletions
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6
hw/vga.c
View File

@ -1837,7 +1837,8 @@ static void vga_update_display(void *opaque)
if (ds_get_bits_per_pixel(s->ds) == 0) {
/* nothing to do */
} else {
full_update = 0;
full_update = s->full_update;
s->full_update = 0;
if (!(s->ar_index & 0x20)) {
graphic_mode = GMODE_BLANK;
} else {
@ -1867,8 +1868,7 @@ static void vga_invalidate_display(void *opaque)
{
VGAState *s = (VGAState *)opaque;
s->last_width = -1;
s->last_height = -1;
s->full_update = 1;
}
void vga_reset(void *opaque)

1
hw/vga_int.h
View File

@ -158,6 +158,7 @@ typedef struct VGACommonState {
uint32_t last_width, last_height; /* in chars or pixels */
uint32_t last_scr_width, last_scr_height; /* in pixels */
uint32_t last_depth; /* in bits */
uint8_t full_update;
uint8_t cursor_start, cursor_end;
uint32_t cursor_offset;
unsigned int (*rgb_to_pixel)(unsigned int r,