Add color space conversions on input and output.

[movit] / util.h

diff --git a/util.h b/util.h
index 3abd8d124a6e11f6087f0e6ccb62765db238b39b..498e5f23ed443e0e56ce7ed98af9e17371714008 100644 (file)
--- a/util.h
+++ b/util.h
@@ -4,13 +4,26 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include <string>
+
+#include <GL/gl.h>
+
 // assumes h in [0, 2pi> or [-pi, pi>
 void hsv2rgb(float h, float s, float v, float *r, float *g, float *b);
 
+// Column major (same as OpenGL).
+typedef double Matrix3x3[9];
+
+std::string read_file(const std::string &filename);
+GLhandleARB compile_shader(const std::string &shader_src, GLenum type);
+void multiply_3x3_matrices(const Matrix3x3 a, const Matrix3x3 b, Matrix3x3 result);
+void invert_3x3_matrix(const Matrix3x3 m, Matrix3x3 result);
+void print_3x3_matrix(const Matrix3x3 m);
+
 #ifdef NDEBUG
 #define check_error()
 #else
-#define check_error() { int err = glGetError(); if (err != GL_NO_ERROR) { printf("GL error 0x%x at line %d\n", err, __LINE__); exit(1); } }
+#define check_error() { int err = glGetError(); if (err != GL_NO_ERROR) { printf("GL error 0x%x at %s:%d\n", err, __FILE__, __LINE__); exit(1); } }
 #endif
 
 #endif // !defined(_UTIL_H)