Display updates and drawing hardware cursor did not work when frame buffer address was non-zero. Fix this by taking the frame buffer address into account in these cases. This fixes screen dragging on AmigaOS. Based on patch by Sebastian Bauer.
Signed-off-by: Sebastian Bauer <m...@sebastianbauer.info> Signed-off-by: BALATON Zoltan <bala...@eik.bme.hu> --- hw/display/sm501.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/hw/display/sm501.c b/hw/display/sm501.c index e426d2f..acc26f6 100644 --- a/hw/display/sm501.c +++ b/hw/display/sm501.c @@ -578,6 +578,11 @@ static uint32_t get_local_mem_size_index(uint32_t size) return index; } +static ram_addr_t get_fb_addr(SM501State *s, int crt) +{ + return crt ? s->dc_crt_fb_addr : s->dc_panel_fb_addr; +} + static inline int get_width(SM501State *s, int crt) { int width = crt ? s->dc_crt_h_total : s->dc_panel_h_total; @@ -680,7 +685,8 @@ static inline void hwc_invalidate(SM501State *s, int crt) start *= w * bpp; end *= w * bpp; - memory_region_set_dirty(&s->local_mem_region, start, end - start); + memory_region_set_dirty(&s->local_mem_region, + get_fb_addr(s, crt) + start, end - start); } static void sm501_2d_operation(SM501State *s) @@ -1577,7 +1583,7 @@ static void sm501_update_display(void *opaque) draw_hwc_line_func *draw_hwc_line = NULL; int full_update = 0; int y_start = -1; - ram_addr_t offset = 0; + ram_addr_t offset; uint32_t *palette; uint8_t hwc_palette[3 * 3]; uint8_t *hwc_src = NULL; @@ -1634,9 +1640,10 @@ static void sm501_update_display(void *opaque) } /* draw each line according to conditions */ + offset = get_fb_addr(s, crt); snap = memory_region_snapshot_and_clear_dirty(&s->local_mem_region, offset, width * height * src_bpp, DIRTY_MEMORY_VGA); - for (y = 0, offset = 0; y < height; y++, offset += width * src_bpp) { + for (y = 0; y < height; y++, offset += width * src_bpp) { int update, update_hwc; /* check if hardware cursor is enabled and we're within its range */ -- 2.7.6