#include <map>
#include <string>
+#include <GL/gl.h>
+
+// Can alias on a float[2].
+struct Point2D {
+ Point2D(float x, float y)
+ : x(x), y(y) {}
+
+ float x, y;
+};
+
// Can alias on a float[3].
struct RGBTriplet {
RGBTriplet(float r, float g, float b)
float r, g, b;
};
+// Convenience functions that deal with prepending the prefix.
+void set_uniform_int(GLuint glsl_program_num, const std::string &prefix, const std::string &key, int value);
+void set_uniform_float(GLuint glsl_program_num, const std::string &prefix, const std::string &key, float value);
+void set_uniform_float_array(GLuint glsl_program_num, const std::string &prefix, const std::string &key, const float *values, size_t num_values);
+void set_uniform_vec2(GLuint glsl_program_num, const std::string &prefix, const std::string &key, const float *values);
+void set_uniform_vec3(GLuint glsl_program_num, const std::string &prefix, const std::string &key, const float *values);
+
class Effect {
public:
- virtual bool needs_linear_light() { return true; }
- virtual bool needs_srgb_primaries() { return true; }
- virtual bool needs_many_samples() { return false; }
- virtual bool needs_mipmaps() { return false; }
+ virtual bool needs_linear_light() const { return true; }
+ virtual bool needs_srgb_primaries() const { return true; }
+ virtual bool needs_many_samples() const { return false; }
+ virtual bool needs_mipmaps() const { return false; }
+
+ virtual std::string output_convenience_uniforms() const;
+ virtual std::string output_fragment_shader() = 0;
- virtual std::string output_convenience_uniforms();
- virtual std::string output_glsl() = 0;
+ virtual void set_uniforms(GLuint glsl_program_num, const std::string& prefix, unsigned *sampler_num);
// Neither of these take ownership.
bool set_int(const std::string&, int value);
bool set_float(const std::string &key, float value);
+ bool set_vec2(const std::string &key, const float *values);
bool set_vec3(const std::string &key, const float *values);
protected:
// Neither of these take ownership.
void register_int(const std::string &key, int *value);
void register_float(const std::string &key, float *value);
+ void register_vec2(const std::string &key, float *values);
void register_vec3(const std::string &key, float *values);
+ void register_1d_texture(const std::string &key, float *values, size_t size);
+ void invalidate_1d_texture(const std::string &key);
private:
+ struct Texture1D {
+ float *values;
+ size_t size;
+ bool needs_update;
+ GLuint texture_num;
+ };
+
std::map<std::string, int *> params_int;
std::map<std::string, float *> params_float;
+ std::map<std::string, float *> params_vec2;
std::map<std::string, float *> params_vec3;
+ std::map<std::string, Texture1D> params_tex_1d;
};
#endif // !defined(_EFFECT_H)