X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Ftexture.h;h=35f70ad693e51f7e567639dd89ae28ce5b4bd160;hp=848517eb45c99da20a67c8261ed81488b7902ea3;hb=7e9e15a12fb398798f2719545cc8553354c1e389;hpb=42ace9ac1350d3ae009bdd2fb335ac1e57d1b36b

diff --git a/source/texture.h b/source/texture.h
index 848517eb..35f70ad6 100644
--- a/source/texture.h
+++ b/source/texture.h
@@ -11,6 +11,7 @@ Distributed under the LGPL
 #include <istream>
 #include <msp/datafile/objectloader.h>
 #include "gl.h"
+#include "predicate.h"
 
 namespace Msp {
 namespace GL {
@@ -28,6 +29,15 @@ enum TextureFilter
 std::istream &operator>>(std::istream &, TextureFilter &);
 
 
+enum TextureWrap
+{
+	REPEAT          = GL_REPEAT,
+	CLAMP_TO_EDGE   = GL_CLAMP_TO_EDGE,
+	CLAMP_TO_BORDER = GL_CLAMP_TO_BORDER,
+	MIRRORED_REPEAT = GL_MIRRORED_REPEAT
+};
+
+
 /**
 Base class for textures.  This class only defines operations common for all
 texture types and is not instantiable.  For specifying images for textures, see
@@ -45,28 +55,57 @@ protected:
 		void generate_mipmap(bool);
 	};
 
+	enum ParameterMask
+	{
+		MIN_FILTER = 1,
+		MAG_FILTER = 2,
+		WRAP_S = 4,
+		WRAP_T = 8,
+		WRAP_R = 16,
+		GENERATE_MIPMAP = 32,
+		COMPARE = 64,
+		COMPARE_FUNC = 128
+	};
+
+	unsigned id;
+	GLenum target;
+	TextureFilter min_filter;
+	TextureFilter mag_filter;
+	TextureWrap wrap_s;
+	TextureWrap wrap_t;
+	TextureWrap wrap_r;
+	bool gen_mipmap;
+	bool compare;
+	Predicate cmp_func;
+	mutable int dirty_params;
+
+	Texture(GLenum);
+	Texture(const Texture &);
+	Texture &operator=(const Texture &);
 public:
 	~Texture();
 
+protected:
+	void update_parameter(int) const;
+public:
+	void set_min_filter(TextureFilter);
+	void set_mag_filter(TextureFilter);
+	void set_wrap(TextureWrap);
+	void set_wrap_s(TextureWrap);
+	void set_wrap_t(TextureWrap);
+	void set_wrap_r(TextureWrap);
+	void set_generate_mipmap(bool);
+	void set_compare_enabled(bool);
+	void set_compare_func(Predicate);
+	GLenum get_target() const { return target; }
+	unsigned get_id() const { return id; }
+
 	void bind() const;
 	void bind_to(unsigned) const;
-	void parameter(GLenum, int);
-	void parameter(GLenum, float);
-	void set_min_filter(TextureFilter f) { parameter(GL_TEXTURE_MIN_FILTER, f); }
-	void set_mag_filter(TextureFilter f) { parameter(GL_TEXTURE_MAG_FILTER, f); }
-	GLenum get_target() const            { return target; }
-	unsigned  get_id() const                 { return id; }
 
+	static const Texture *current();
 	static void unbind();
 	static void unbind_from(unsigned);
-protected:
-	unsigned   id;
-	GLenum target;
-
-	Texture();
-	Texture(const Texture &);
-	Texture &operator=(const Texture &);
-	void maybe_bind() const;
 };
 
 } // namespace GL