experiments with shaders

shader.h

@@ -2,21 +2,74 @@
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+#pragma once
+#include "Float3d.h"
+
 class gl_shader
 {
-public:
 	GLuint id;
-
+public:
 	gl_shader();
 	gl_shader(std::string);
+
+	operator GLuint();
 };
 
 class gl_program
 {
+protected:
 	GLuint id;
 public:
 	gl_program() = default;
 	gl_program(std::vector<gl_shader>);
 
-	void use();
+	operator GLuint();
+};
+
+class gl_program_mvp : public gl_program
+{
+	GLuint mv_uniform;
+	GLuint p_uniform;
+
+public:
+	gl_program_mvp() = default;
+	gl_program_mvp(std::vector<gl_shader>);
+
+	void copy_gl_mvp();
+};
+
+class gl_program_light : public gl_program_mvp
+{
+public:
+	static const size_t MAX_LIGHTS = 8;
+
+	enum type
+	{
+		SPOT = 0,
+		POINT,
+		DIR
+	};
+
+	gl_program_light() = default;
+	gl_program_light(std::vector<gl_shader>);
+
+	void set_ambient(float3 &ambient);
+	void set_light_count(GLuint count);
+	void set_light(GLuint id, type t, float3 &pos, float3 &dir, float in_cutoff, float out_cutoff,
+	               float3 &color, float linear, float quadratic);
+
+private:
+	GLuint lcount_uniform;
+	GLuint ambient_uniform;
+	struct light_s
+	{
+		GLuint type;
+		GLuint pos;
+		GLuint dir;
+		GLuint in_cutoff;
+		GLuint out_cutoff;
+		GLuint color;
+		GLuint linear;
+		GLuint quadratic;
+	} lights_uniform[MAX_LIGHTS];
 };