Squash linear gamma back into the sRGB curve at the end.

[movit] / effect.cpp

diff --git a/effect.cpp b/effect.cpp
index f89b1a99c8c2350d8d5a82ddde26d701c5d373e2..927acd52e7934774ba0b43eea4b61202f7b9bf4e 100644 (file)
--- a/effect.cpp
+++ b/effect.cpp
@@ -1,3 +1,4 @@
+#include <stdio.h>
 #include <string.h>
 #include <assert.h>
 #include "effect.h"
@@ -47,3 +48,24 @@ void Effect::register_vec3(const std::string &key, float *values)
        params_vec3[key] = values;
 }
 
+// Output convenience uniforms for each parameter.
+// These will be filled in per-frame.
+std::string Effect::output_convenience_uniforms()
+{
+       std::string output = "";
+       for (std::map<std::string, float*>::const_iterator it = params_float.begin();
+            it != params_float.end();
+            ++it) {
+               char buf[256];
+               sprintf(buf, "uniform float PREFIX(%s);\n", it->first.c_str());
+               output.append(buf);
+       }
+       for (std::map<std::string, float*>::const_iterator it = params_vec3.begin();
+            it != params_vec3.end();
+            ++it) {
+               char buf[256];
+               sprintf(buf, "uniform vec3 PREFIX(%s);\n", it->first.c_str());
+               output.append(buf);
+       }
+       return output;
+}