update_fog_scale(ctx);
break;
case GL_FOG_INDEX:
+ if (ctx->API != API_OPENGL)
+ goto invalid_pname;
if (ctx->Fog.Index == *params)
return;
FLUSH_VERTICES(ctx, _NEW_FOG);
break;
case GL_FOG_COORDINATE_SOURCE_EXT: {
GLenum p = (GLenum) (GLint) *params;
- if (!ctx->Extensions.EXT_fog_coord ||
+ if (ctx->API != API_OPENGL || !ctx->Extensions.EXT_fog_coord ||
(p != GL_FOG_COORDINATE_EXT && p != GL_FRAGMENT_DEPTH_EXT)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glFog");
return;
ctx->Fog.FogCoordinateSource = p;
break;
}
+ case GL_FOG_DISTANCE_MODE_NV: {
+ GLenum p = (GLenum) (GLint) *params;
+ if (ctx->API != API_OPENGL || !ctx->Extensions.NV_fog_distance ||
+ (p != GL_EYE_RADIAL_NV && p != GL_EYE_PLANE && p != GL_EYE_PLANE_ABSOLUTE_NV)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glFog");
+ return;
+ }
+ if (ctx->Fog.FogDistanceMode == p)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_FOG);
+ ctx->Fog.FogDistanceMode = p;
+ break;
+ }
default:
- _mesa_error( ctx, GL_INVALID_ENUM, "glFog" );
- return;
+ goto invalid_pname;
}
if (ctx->Driver.Fogfv) {
(*ctx->Driver.Fogfv)( ctx, pname, params );
}
+
+ return;
+
+invalid_pname:
+ _mesa_error( ctx, GL_INVALID_ENUM, "glFog" );
+ return;
}
ctx->Fog.ColorSumEnabled = GL_FALSE;
ctx->Fog.FogCoordinateSource = GL_FRAGMENT_DEPTH_EXT;
ctx->Fog._Scale = 1.0f;
+ ctx->Fog.FogDistanceMode = GL_EYE_PLANE_ABSOLUTE_NV;
}