X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ftexture.h;h=35f70ad693e51f7e567639dd89ae28ce5b4bd160;hb=020811d96d5c823686e5c2b0a392b95d1a321f05;hp=28f9cb328979efdcefc0c6934e250da56748cdb7;hpb=a4ec5410595ddf37bfbc0e85ad87d31a9cbf94f1;p=libs%2Fgl.git

diff --git a/source/texture.h b/source/texture.h
index 28f9cb32..35f70ad6 100644
--- a/source/texture.h
+++ b/source/texture.h
@@ -8,8 +8,10 @@ Distributed under the LGPL
 #ifndef MSP_GL_TEXTURE_H_
 #define MSP_GL_TEXTURE_H_
 
+#include <istream>
+#include <msp/datafile/objectloader.h>
 #include "gl.h"
-#include "types.h"
+#include "predicate.h"
 
 namespace Msp {
 namespace GL {
@@ -24,6 +26,18 @@ enum TextureFilter
 	LINEAR_MIPMAP_LINEAR   = GL_LINEAR_MIPMAP_LINEAR
 };
 
+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
@@ -31,26 +45,67 @@ one of the dimensioned texture classes.
 */
 class Texture
 {
-public:
-	~Texture();
+protected:
+	class Loader: public DataFile::ObjectLoader<Texture>
+	{
+	public:
+		Loader(Texture &);
+		void min_filter(TextureFilter);
+		void mag_filter(TextureFilter);
+		void generate_mipmap(bool);
+	};
 
-	void bind() 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; }
-	uint  get_id() const                 { return id; }
+	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
+	};
 
-	static void unbind();
-protected:
-	uint   id;
+	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();
+	Texture(GLenum);
 	Texture(const Texture &);
 	Texture &operator=(const Texture &);
-	void maybe_bind() const;
+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;
+
+	static const Texture *current();
+	static void unbind();
+	static void unbind_from(unsigned);
 };
 
 } // namespace GL