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-rw-r--r--uisimulator/sdl/lcd-bitmap.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/uisimulator/sdl/lcd-bitmap.c b/uisimulator/sdl/lcd-bitmap.c
index 3c73b6fc5d..0bd90196e4 100644
--- a/uisimulator/sdl/lcd-bitmap.c
+++ b/uisimulator/sdl/lcd-bitmap.c
@@ -149,11 +149,7 @@ void sim_backlight(int value)
#endif
}
#else /* LCD_DEPTH > 8 */
- if (value > 0) {
- SDL_SetAlpha(lcd_surface, 0, SDL_ALPHA_OPAQUE); /* full on */
- } else {
- SDL_SetAlpha(lcd_surface, SDL_SRCALPHA, BACKLIGHT_OFF_ALPHA);
- }
+ SDL_SetAlpha(lcd_surface, SDL_SRCALPHA, (value * 255) / 100);
#endif /* LCD_DEPTH */
sdl_gui_update(lcd_surface, 0, 0, SIM_LCD_WIDTH, SIM_LCD_HEIGHT,