Access builtin resources through a global instance

[libs/gl.git] / source / effects / colorcurve.h

diff --git a/source/effects/colorcurve.h b/source/effects/colorcurve.h
index 3f65b04916897c6d85bde7ec4f33fece160a3cd1..f274bf06bde57040e7ae1f489fa6793d3f6560ac 100644 (file)
--- a/source/effects/colorcurve.h
+++ b/source/effects/colorcurve.h
@@ -5,7 +5,6 @@
 #include "program.h"
 #include "programdata.h"
 #include "texture1d.h"
-#include "texturing.h"
 
 namespace Msp {
 namespace GL {
@@ -45,13 +44,12 @@ public:
        };
 
 private:
-       Program shprog;
+       const Program &shprog;
        ProgramData shdata;
        Texture1D curve;
-       Texturing texturing;
-       RefPtr<Mesh> quad;
-       RefPtr<Sampler> linear_sampler;
-       RefPtr<Sampler> nearest_sampler;
+       const Mesh &quad;
+       const Sampler &linear_sampler;
+       const Sampler &nearest_sampler;
 
 public:
        ColorCurve();
@@ -60,7 +58,9 @@ public:
        image, negative values darken it.  Zero is neutral. */
        void set_exposure_adjust(float);
 
-       /** Sets the exponent of the */
+       /** Sets the exponent of the brightness response curve.  It must be greater
+       than zero and at most one.  A value of one gives a linear response; closer
+       to zero results in a more gentle curve. */
        void set_brightness_response(float);
 
        /** Sets the gamma value used for mapping output colors.  Allowed range is