diff options
Diffstat (limited to 'src/mesa/swrast/s_fog.c')
| -rw-r--r-- | src/mesa/swrast/s_fog.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/mesa/swrast/s_fog.c b/src/mesa/swrast/s_fog.c index 6b9e698f7bc..380dcc11bab 100644 --- a/src/mesa/swrast/s_fog.c +++ b/src/mesa/swrast/s_fog.c @@ -23,6 +23,7 @@ */ +#include "c99_math.h" #include "main/glheader.h" #include "main/colormac.h" #include "main/macros.h" @@ -49,12 +50,12 @@ _swrast_z_to_fogfactor(struct gl_context *ctx, GLfloat z) return CLAMP(f, 0.0F, 1.0F); case GL_EXP: d = ctx->Fog.Density; - f = EXPF(-d * z); + f = expf(-d * z); f = CLAMP(f, 0.0F, 1.0F); return f; case GL_EXP2: d = ctx->Fog.Density; - f = EXPF(-(d * d * z * z)); + f = expf(-(d * d * z * z)); f = CLAMP(f, 0.0F, 1.0F); return f; default: @@ -66,14 +67,14 @@ _swrast_z_to_fogfactor(struct gl_context *ctx, GLfloat z) #define LINEAR_FOG(f, coord) f = (fogEnd - coord) * fogScale -#define EXP_FOG(f, coord) f = EXPF(density * coord) +#define EXP_FOG(f, coord) f = expf(density * coord) #define EXP2_FOG(f, coord) \ do { \ GLfloat tmp = negDensitySquared * coord * coord; \ if (tmp < FLT_MIN_10_EXP) \ tmp = FLT_MIN_10_EXP; \ - f = EXPF(tmp); \ + f = expf(tmp); \ } while(0) |