X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=effect.h;h=9d95705f6a66ce344a54bd18eb83154018d85c35;hp=771648cde059ec269c514c845ed798694cdf6ba0;hb=56ff92c5828a143595eeb7a1906418cc30668f9d;hpb=7af4d1b54ba141fdb74cd13ddc6110708855d157

diff --git a/effect.h b/effect.h
index 771648c..9d95705 100644
--- a/effect.h
+++ b/effect.h
@@ -1,5 +1,5 @@
-#ifndef _EFFECT_H
-#define _EFFECT_H 1
+#ifndef _MOVIT_EFFECT_H
+#define _MOVIT_EFFECT_H 1
 
 // Effect is the base class for every effect. It basically represents a single
 // GLSL function, with an optional set of user-settable parameters.
@@ -10,16 +10,15 @@
 // effect instance; use the macro PREFIX() around your identifiers to
 // automatically prepend that prefix.
 
+#include <epoxy/gl.h>
+#include <assert.h>
+#include <stddef.h>
 #include <map>
 #include <string>
-#include <vector>
-
-#include <assert.h>
 
-#include <Eigen/Core>
+#include "defs.h"
 
-#include <GL/glew.h>
-#include "util.h"
+namespace movit {
 
 class EffectChain;
 class Node;
@@ -41,23 +40,13 @@ struct RGBTriplet {
 };
 
 // Can alias on a float[4].
-struct RGBATriplet {
-	RGBATriplet(float r, float g, float b, float a)
+struct RGBATuple {
+	RGBATuple(float r, float g, float b, float a)
 		: r(r), g(g), b(b), a(a) {}
 
 	float r, g, b, a;
 };
 
-// Convenience functions that deal with prepending the prefix.
-GLint get_uniform_location(GLuint glsl_program_num, const std::string &prefix, const std::string &key);
-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_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);
-void set_uniform_vec4(GLuint glsl_program_num, const std::string &prefix, const std::string &key, const float *values);
-void set_uniform_vec4_array(GLuint glsl_program_num, const std::string &prefix, const std::string &key, const float *values, size_t num_values);
-void set_uniform_mat3(GLuint glsl_program_num, const std::string &prefix, const std::string &key, const Eigen::Matrix3d &matrix);
-
 class Effect {
 public:
 	virtual ~Effect() {}
@@ -178,6 +167,15 @@ public:
 	// next effect set needs_texture_bounce()).
 	virtual bool changes_output_size() const { return false; }
 
+	// Whether this effect is effectively sampling from a a single texture.
+	// If so, it will override needs_texture_bounce(); however, there are also
+	// two demands it needs to fulfill:
+	//
+	//  1. It needs to be an Input, ie. num_inputs() == 0.
+	//  2. It needs to allocate exactly one sampler in set_gl_state(),
+	//     and allow dependent effects to change that sampler state.
+	virtual bool is_single_texture() const { return false; }
+
 	// If changes_output_size() is true, you must implement this to tell
 	// the framework what output size you want. Also, you can set a
 	// virtual width/height, which is the size the next effect (if any)
@@ -209,6 +207,12 @@ public:
 	// if you have several, they will be INPUT1(), INPUT2(), and so on.
 	virtual unsigned num_inputs() const { return 1; }
 
+	// Inform the effect that it has been just added to the EffectChain.
+	// The primary use for this is to store the ResourcePool uesd by
+	// the chain; for modifications to it, rewrite_graph() below
+	// is probably a better fit.
+	virtual void inform_added(EffectChain *chain) {}
+
 	// Let the effect rewrite the effect chain as it sees fit.
 	// Most effects won't need to do this, but this is very useful
 	// if you have an effect that consists of multiple sub-effects
@@ -270,31 +274,14 @@ protected:
 	void register_vec3(const std::string &key, float *values);
 	void register_vec4(const std::string &key, float *values);
 
-	// This will register a 1D texture, which will be bound to a sampler
-	// when your GLSL code runs (so it corresponds 1:1 to a sampler2D uniform
-	// in GLSL).
-	//
-	// Note that if you change the contents of <values>, you will need to
-	// call invalidate_1d_texture() to have the picture re-uploaded on the
-	// next frame. This is in contrast to all the other parameters, which are
-	// set anew every frame.
-	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, float *> params_vec4;
-	std::map<std::string, Texture1D> params_tex_1d;
 };
 
-#endif // !defined(_EFFECT_H)
+}  // namespace movit
+
+#endif // !defined(_MOVIT_EFFECT_H)