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-rw-r--r--riscos/plotters.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/riscos/plotters.c b/riscos/plotters.c
index da890abad..3650e2246 100644
--- a/riscos/plotters.c
+++ b/riscos/plotters.c
@@ -498,7 +498,14 @@ bool ro_plot_arc(int x, int y, int radius, int angle1, int angle2, colour c)
bool ro_plot_bitmap(int x, int y, int width, int height,
struct bitmap *bitmap, colour bg)
{
- bitmap_get_buffer(bitmap);
+ char *buffer;
+
+ buffer = bitmap_get_buffer(bitmap);
+ if (!buffer) {
+ LOG(("bitmap_get_buffer failed"));
+ return false;
+ }
+
return image_redraw(bitmap->sprite_area,
ro_plot_origin_x + x * 2,
ro_plot_origin_y - y * 2,
@@ -516,7 +523,14 @@ bool ro_plot_bitmap_tile(int x, int y, int width, int height,
struct bitmap *bitmap, colour bg,
bool repeat_x, bool repeat_y)
{
- bitmap_get_buffer(bitmap);
+ char *buffer;
+
+ buffer = bitmap_get_buffer(bitmap);
+ if (!buffer) {
+ LOG(("bitmap_get_buffer failed"));
+ return false;
+ }
+
return image_redraw(bitmap->sprite_area,
ro_plot_origin_x + x * 2,
ro_plot_origin_y - y * 2,