diff options
Diffstat (limited to 'src/mesa/main/fog.c')
| -rw-r--r-- | src/mesa/main/fog.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/mesa/main/fog.c b/src/mesa/main/fog.c index fd64bd1fd89..439232248e6 100644 --- a/src/mesa/main/fog.c +++ b/src/mesa/main/fog.c @@ -79,12 +79,17 @@ _mesa_Fogiv(GLenum pname, const GLint *params ) } -#define UPDATE_FOG_SCALE(ctx) do {\ - if (ctx->Fog.End == ctx->Fog.Start)\ - ctx->Fog._Scale = 1.0f;\ - else\ - ctx->Fog._Scale = 1.0f / (ctx->Fog.End - ctx->Fog.Start);\ - } while(0) +/** + * Update the gl_fog_attrib::_Scale field. + */ +static void +update_fog_scale(struct gl_context *ctx) +{ + if (ctx->Fog.End == ctx->Fog.Start) + ctx->Fog._Scale = 1.0f; + else + ctx->Fog._Scale = 1.0f / (ctx->Fog.End - ctx->Fog.Start); +} void GLAPIENTRY @@ -126,14 +131,14 @@ _mesa_Fogfv( GLenum pname, const GLfloat *params ) return; FLUSH_VERTICES(ctx, _NEW_FOG); ctx->Fog.Start = *params; - UPDATE_FOG_SCALE(ctx); + update_fog_scale(ctx); break; case GL_FOG_END: if (ctx->Fog.End == *params) return; FLUSH_VERTICES(ctx, _NEW_FOG); ctx->Fog.End = *params; - UPDATE_FOG_SCALE(ctx); + update_fog_scale(ctx); break; case GL_FOG_INDEX: if (ctx->Fog.Index == *params) |