diff --git a/src/color.h b/src/color.h
index 8fcc9443883f1dac2c2cfdd960ffaf7fad707dc3..bebeaec60b4e188bb2dbe7ae8514c6fbb8858b01 100644 (file)
--- a/src/color.h
+++ b/src/color.h
#define SP_RGBA32_B_U(v) (((v) >> 8) & 0xff)
#define SP_RGBA32_A_U(v) ((v) & 0xff)
#define SP_COLOR_U_TO_F(v) ((v) / 255.0)
-#define SP_COLOR_F_TO_U(v) ((unsigned int) ((v) * 255.9999))
+#define SP_COLOR_F_TO_U(v) ((unsigned int) ((v) * 255. + .5))
#define SP_RGBA32_R_F(v) SP_COLOR_U_TO_F (SP_RGBA32_R_U (v))
#define SP_RGBA32_G_F(v) SP_COLOR_U_TO_F (SP_RGBA32_G_U (v))
#define SP_RGBA32_B_F(v) SP_COLOR_U_TO_F (SP_RGBA32_B_U (v))