X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Ftexture.h;h=9c43b76911ecb5d00fcf517847f6a04001ed6241;hp=1b80e950f08d93e54debd3bdc8b14ae4c7f458ac;hb=72a13418cc19e750abf3f8d8a52aea5e1abe4983;hpb=cdf928f03f4d8383b8fa978abc4c255a850ec061

diff --git a/source/texture.h b/source/texture.h
index 1b80e950..9c43b769 100644
--- a/source/texture.h
+++ b/source/texture.h
@@ -104,12 +104,21 @@ protected:
 		GENERATE_MIPMAP = 32,
 		COMPARE = 64,
 		COMPARE_FUNC = 128,
-		MAX_ANISOTROPY = 256
+		MAX_ANISOTROPY = 256,
+		FORMAT_SWIZZLE = 512
+	};
+
+	enum FormatSwizzle
+	{
+		NO_SWIZZLE,
+		R_TO_LUMINANCE,
+		RG_TO_LUMINANCE_ALPHA
 	};
 
 	unsigned id;
 	GLenum target;
 	PixelFormat ifmt;
+	FormatSwizzle swizzle;
 	TextureFilter min_filter;
 	TextureFilter mag_filter;
 	float max_anisotropy;
@@ -121,6 +130,8 @@ protected:
 	Predicate cmp_func;
 	mutable int dirty_params;
 
+	static int swizzle_orders[];
+
 	Texture(GLenum, ResourceManager * = 0);
 	Texture(const Texture &);
 	Texture &operator=(const Texture &);
@@ -130,6 +141,7 @@ public:
 protected:
 	static DataType get_alloc_type(PixelFormat);
 	void set_internal_format(PixelFormat);
+	PixelFormat get_upload_format(PixelFormat) const;
 
 	void update_parameter(int) const;
 	void set_parameter_i(GLenum, int) const;
@@ -151,6 +163,8 @@ public:
 	void set_wrap_t(TextureWrap);
 	void set_wrap_r(TextureWrap);
 
+	static bool can_generate_mipmap();
+
 	/** Sets automatic mipmap generation.  If enabled, mipmaps are generated
 	when a texture image is uploaded. */
 	void set_generate_mipmap(bool);