diff options
| -rw-r--r-- | hw/vmware_vga.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/hw/vmware_vga.c b/hw/vmware_vga.c index 62771bb..cd15ee4 100644 --- a/hw/vmware_vga.c +++ b/hw/vmware_vga.c @@ -296,6 +296,15 @@ static inline void vmsvga_update_rect(struct vmsvga_state_s *s, uint8_t *src; uint8_t *dst; + if (x < 0) { + fprintf(stderr, "%s: update x was < 0 (%d)\n", __func__, x); + w += x; + x = 0; + } + if (w < 0) { + fprintf(stderr, "%s: update w was < 0 (%d)\n", __func__, w); + w = 0; + } if (x + w > ds_get_width(s->vga.ds)) { fprintf(stderr, "%s: update width too large x: %d, w: %d\n", __func__, x, w); @@ -303,6 +312,15 @@ static inline void vmsvga_update_rect(struct vmsvga_state_s *s, w = ds_get_width(s->vga.ds) - x; } + if (y < 0) { + fprintf(stderr, "%s: update y was < 0 (%d)\n", __func__, y); + h += y; + y = 0; + } + if (h < 0) { + fprintf(stderr, "%s: update h was < 0 (%d)\n", __func__, h); + h = 0; + } if (y + h > ds_get_height(s->vga.ds)) { fprintf(stderr, "%s: update height too large y: %d, h: %d\n", __func__, y, h); |