diff options
Diffstat (limited to 'hw/display/vga.c')
| -rw-r--r-- | hw/display/vga.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/hw/display/vga.c b/hw/display/vga.c index 30facc6c8e..892fedc8dc 100644 --- a/hw/display/vga.c +++ b/hw/display/vga.c @@ -1487,7 +1487,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) uint8_t *d; uint32_t v, addr1, addr; vga_draw_line_func *vga_draw_line = NULL; - bool share_surface, force_shadow = false; + bool allocate_surface, force_shadow = false; pixman_format_code_t format; #if HOST_BIG_ENDIAN bool byteswap = !s->big_endian_fb; @@ -1609,10 +1609,10 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) */ format = qemu_default_pixman_format(depth, !byteswap); if (format) { - share_surface = dpy_gfx_check_format(s->con, format) - && !s->force_shadow && !force_shadow; + allocate_surface = !dpy_gfx_check_format(s->con, format) + || s->force_shadow || force_shadow; } else { - share_surface = false; + allocate_surface = true; } if (s->params.line_offset != s->last_line_offset || @@ -1620,7 +1620,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) height != s->last_height || s->last_depth != depth || s->last_byteswap != byteswap || - share_surface != is_buffer_shared(surface)) { + allocate_surface != surface_is_allocated(surface)) { /* display parameters changed -> need new display surface */ s->last_scr_width = disp_width; s->last_scr_height = height; @@ -1635,14 +1635,14 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) full_update = 1; } if (surface_data(surface) != s->vram_ptr + (s->params.start_addr * 4) - && is_buffer_shared(surface)) { + && !surface_is_allocated(surface)) { /* base address changed (page flip) -> shared display surfaces * must be updated with the new base address */ full_update = 1; } if (full_update) { - if (share_surface) { + if (!allocate_surface) { surface = qemu_create_displaysurface_from(disp_width, height, format, s->params.line_offset, s->vram_ptr + (s->params.start_addr * 4)); @@ -1655,7 +1655,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) vga_draw_line = vga_draw_line_table[v]; - if (!is_buffer_shared(surface) && s->cursor_invalidate) { + if (surface_is_allocated(surface) && s->cursor_invalidate) { s->cursor_invalidate(s); } @@ -1707,7 +1707,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) if (update) { if (y_start < 0) y_start = y; - if (!(is_buffer_shared(surface))) { + if (surface_is_allocated(surface)) { uint8_t *p; p = vga_draw_line(s, d, addr, width, hpel); if (p) { @@ -1762,6 +1762,13 @@ static void vga_draw_blank(VGACommonState *s, int full_update) if (s->last_scr_width <= 0 || s->last_scr_height <= 0) return; + if (!surface_is_allocated(surface)) { + /* unshare buffer, otherwise the blanking corrupts vga vram */ + surface = qemu_create_displaysurface(s->last_scr_width, + s->last_scr_height); + dpy_gfx_replace_surface(s->con, surface); + } + w = s->last_scr_width * surface_bytes_per_pixel(surface); d = surface_data(surface); for(i = 0; i < s->last_scr_height; i++) { |