diff options
| author | Sebastian Bauer <mail@sebastianbauer.info> | 2018-07-04 11:40:58 +0200 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2018-07-07 12:12:27 +1000 |
| commit | d27335592a187de0ba77894b522025827907038c (patch) | |
| tree | 5c7255213677dd41542a8e070652ef6ae333400b /hw/display | |
| parent | 4a1f253adb45ac6019971193d5077c4d5d55886a (diff) | |
sm501: Perform a full update after palette change
Changing the palette of a color index has as an immediate effect on
all pixels with the corresponding index on real hardware. Performing a
full update after a palette change is a simple way to emulate this
effect.
Signed-off-by: Sebastian Bauer <mail@sebastianbauer.info>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/display')
| -rw-r--r-- | hw/display/sm501.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/display/sm501.c b/hw/display/sm501.c index 05c964bea1..b095134d6f 100644 --- a/hw/display/sm501.c +++ b/hw/display/sm501.c @@ -487,6 +487,7 @@ typedef struct SM501State { MemoryRegion twoD_engine_region; uint32_t last_width; uint32_t last_height; + bool do_full_update; /* perform a full update next time */ I2CBus *i2c_bus; /* mmio registers */ @@ -1042,6 +1043,7 @@ static void sm501_palette_write(void *opaque, hwaddr addr, assert(range_covers_byte(0, 0x400 * 3, addr)); *(uint32_t *)&s->dc_palette[addr] = value; + s->do_full_update = true; } static uint64_t sm501_disp_ctrl_read(void *opaque, hwaddr addr, @@ -1630,6 +1632,12 @@ static void sm501_update_display(void *opaque) full_update = 1; } + /* someone else requested a full update */ + if (s->do_full_update) { + s->do_full_update = false; + full_update = 1; + } + /* draw each line according to conditions */ snap = memory_region_snapshot_and_clear_dirty(&s->local_mem_region, offset, width * height * src_bpp, DIRTY_MEMORY_VGA); |