diff options
Diffstat (limited to 'mesalib/src/mesa/main/fog.c')
| -rw-r--r-- | mesalib/src/mesa/main/fog.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/mesalib/src/mesa/main/fog.c b/mesalib/src/mesa/main/fog.c index b4356c198..70603576c 100644 --- a/mesalib/src/mesa/main/fog.c +++ b/mesalib/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)
|