diff options
Diffstat (limited to 'hw/display/ramfb.c')
| -rw-r--r-- | hw/display/ramfb.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/hw/display/ramfb.c b/hw/display/ramfb.c index 52dae78db4..79b9754a58 100644 --- a/hw/display/ramfb.c +++ b/hw/display/ramfb.c @@ -44,10 +44,10 @@ static void ramfb_unmap_display_surface(pixman_image_t *image, void *unused) static DisplaySurface *ramfb_create_display_surface(int width, int height, pixman_format_code_t format, - int linesize, uint64_t addr) + hwaddr stride, hwaddr addr) { DisplaySurface *surface; - hwaddr size; + hwaddr size, mapsize, linesize; void *data; if (width < 16 || width > VBE_DISPI_MAX_XRES || @@ -55,19 +55,20 @@ static DisplaySurface *ramfb_create_display_surface(int width, int height, format == 0 /* unknown format */) return NULL; - if (linesize == 0) { - linesize = width * PIXMAN_FORMAT_BPP(format) / 8; + linesize = width * PIXMAN_FORMAT_BPP(format) / 8; + if (stride == 0) { + stride = linesize; } - size = (hwaddr)linesize * height; - data = cpu_physical_memory_map(addr, &size, false); - if (size != (hwaddr)linesize * height) { - cpu_physical_memory_unmap(data, size, 0, 0); + mapsize = size = stride * (height - 1) + linesize; + data = cpu_physical_memory_map(addr, &mapsize, false); + if (size != mapsize) { + cpu_physical_memory_unmap(data, mapsize, 0, 0); return NULL; } surface = qemu_create_displaysurface_from(width, height, - format, linesize, data); + format, stride, data); pixman_image_set_destroy_function(surface->image, ramfb_unmap_display_surface, NULL); |