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convert to float the input of RGBTOGRAY macro, or it can cause rounding errors in byte vectors.

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jal 2010-05-28 21:49:38 +02:00
parent d539f09864
commit 73c5be6f5f
1 changed files with 1 additions and 1 deletions
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libs/mathlib.h
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@ -77,7 +77,7 @@ extern const vec3_t g_vec3_axis_z;
#define FLOAT_SNAP(f,snap) ( (float)( floor( (f) / (snap) + 0.5 ) * (snap) ) ) #define FLOAT_SNAP(f,snap) ( (float)( floor( (f) / (snap) + 0.5 ) * (snap) ) )
#define FLOAT_TO_INTEGER(f) ( (float)( floor( (f) + 0.5 ) ) ) #define FLOAT_TO_INTEGER(f) ( (float)( floor( (f) + 0.5 ) ) )
#define RGBTOGRAY(x) ( (x)[0] * 0.2989f + (x)[1] * 0.5870f + (x)[2] * 0.1140f ) #define RGBTOGRAY(x) ( (float)((x)[0]) * 0.2989f + (float)((x)[1]) * 0.5870f + (float)((x)[2]) * 0.1140f )
#define Q_rint(in) ((vec_t)floor(in+0.5)) #define Q_rint(in) ((vec_t)floor(in+0.5))