-static textypeinfo_t textype_palette = {TEXTYPE_PALETTE, 1, 4, GL_RGBA , 3};
-static textypeinfo_t textype_rgb = {TEXTYPE_RGB , 3, 3, GL_RGB , 3};
-static textypeinfo_t textype_rgba = {TEXTYPE_RGBA , 4, 4, GL_RGBA , 3};
-static textypeinfo_t textype_palette_alpha = {TEXTYPE_PALETTE, 1, 4, GL_RGBA , 4};
-static textypeinfo_t textype_rgba_alpha = {TEXTYPE_RGBA , 4, 4, GL_RGBA , 4};
-static textypeinfo_t textype_dsdt = {TEXTYPE_DSDT , 2, 2, GL_DSDT_NV, GL_DSDT8_NV};
-
-// a tiling texture (most common type)
-#define GLIMAGETYPE_TILE 0
-// a fragments texture (contains one or more fragment textures)
-#define GLIMAGETYPE_FRAGMENTS 1
-
-#define GLTEXTURETYPE_1D 0
-#define GLTEXTURETYPE_2D 1
-#define GLTEXTURETYPE_3D 2
-#define GLTEXTURETYPE_CUBEMAP 3
-
-static int gltexturetypeenums[4] = {GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP_ARB};
-static int gltexturetypebindingenums[4] = {GL_TEXTURE_BINDING_1D, GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_3D, GL_TEXTURE_BINDING_CUBE_MAP_ARB};
-static int gltexturetypedimensions[4] = {1, 2, 3, 2};
+// framebuffer texture formats
+static textypeinfo_t textype_shadowmap16 = {"shadowmap16", TEXTYPE_SHADOWMAP , 2, 2, 2.0f, GL_DEPTH_COMPONENT16_ARB , GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT};
+static textypeinfo_t textype_shadowmap24 = {"shadowmap24", TEXTYPE_SHADOWMAP , 4, 4, 4.0f, GL_DEPTH_COMPONENT24_ARB , GL_DEPTH_COMPONENT, GL_UNSIGNED_INT };
+static textypeinfo_t textype_colorbuffer = {"colorbuffer", TEXTYPE_COLORBUFFER , 4, 4, 4.0f, GL_RGBA , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_colorbuffer16f = {"colorbuffer16f", TEXTYPE_COLORBUFFER16F, 8, 8, 8.0f, GL_RGBA16F_ARB , GL_RGBA , GL_FLOAT };
+static textypeinfo_t textype_colorbuffer32f = {"colorbuffer32f", TEXTYPE_COLORBUFFER32F, 16, 16, 16.0f, GL_RGBA32F_ARB , GL_RGBA , GL_FLOAT };
+
+// image formats:
+static textypeinfo_t textype_alpha = {"alpha", TEXTYPE_ALPHA , 1, 4, 4.0f, GL_ALPHA , GL_ALPHA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_palette = {"palette", TEXTYPE_PALETTE , 1, 4, 4.0f, GL_RGB , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_palette_alpha = {"palette_alpha", TEXTYPE_PALETTE , 1, 4, 4.0f, GL_RGBA , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_rgba = {"rgba", TEXTYPE_RGBA , 4, 4, 4.0f, GL_RGB , GL_RGBA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_rgba_alpha = {"rgba_alpha", TEXTYPE_RGBA , 4, 4, 4.0f, GL_RGBA , GL_RGBA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_rgba_compress = {"rgba_compress", TEXTYPE_RGBA , 4, 4, 0.5f, GL_COMPRESSED_RGB_S3TC_DXT1_EXT , GL_RGBA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_rgba_alpha_compress = {"rgba_alpha_compress", TEXTYPE_RGBA , 4, 4, 1.0f, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT , GL_RGBA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_bgra = {"bgra", TEXTYPE_BGRA , 4, 4, 4.0f, GL_RGB , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_bgra_alpha = {"bgra_alpha", TEXTYPE_BGRA , 4, 4, 4.0f, GL_RGBA , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_bgra_compress = {"bgra_compress", TEXTYPE_BGRA , 4, 4, 0.5f, GL_COMPRESSED_RGB_S3TC_DXT1_EXT , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_bgra_alpha_compress = {"bgra_alpha_compress", TEXTYPE_BGRA , 4, 4, 1.0f, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_dxt1 = {"dxt1", TEXTYPE_DXT1 , 4, 0, 0.5f, GL_COMPRESSED_RGB_S3TC_DXT1_EXT , 0 , 0 };
+static textypeinfo_t textype_dxt1a = {"dxt1a", TEXTYPE_DXT1A , 4, 0, 0.5f, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT , 0 , 0 };
+static textypeinfo_t textype_dxt3 = {"dxt3", TEXTYPE_DXT3 , 4, 0, 1.0f, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT , 0 , 0 };
+static textypeinfo_t textype_dxt5 = {"dxt5", TEXTYPE_DXT5 , 4, 0, 1.0f, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT , 0 , 0 };
+static textypeinfo_t textype_sRGB_palette = {"sRGB_palette", TEXTYPE_PALETTE , 1, 4, 4.0f, GL_SRGB_EXT , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_sRGB_palette_alpha = {"sRGB_palette_alpha", TEXTYPE_PALETTE , 1, 4, 4.0f, GL_SRGB_ALPHA_EXT , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_sRGB_rgba = {"sRGB_rgba", TEXTYPE_RGBA , 4, 4, 4.0f, GL_SRGB_EXT , GL_RGBA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_sRGB_rgba_alpha = {"sRGB_rgba_alpha", TEXTYPE_RGBA , 4, 4, 4.0f, GL_SRGB_ALPHA_EXT , GL_RGBA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_sRGB_rgba_compress = {"sRGB_rgba_compress", TEXTYPE_RGBA , 4, 4, 0.5f, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT , GL_RGBA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_sRGB_rgba_alpha_compress = {"sRGB_rgba_alpha_compress", TEXTYPE_RGBA , 4, 4, 1.0f, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, GL_RGBA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_sRGB_bgra = {"sRGB_bgra", TEXTYPE_BGRA , 4, 4, 4.0f, GL_SRGB_EXT , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_sRGB_bgra_alpha = {"sRGB_bgra_alpha", TEXTYPE_BGRA , 4, 4, 4.0f, GL_SRGB_ALPHA_EXT , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_sRGB_bgra_compress = {"sRGB_bgra_compress", TEXTYPE_BGRA , 4, 4, 0.5f, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT , GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_sRGB_bgra_alpha_compress = {"sRGB_bgra_alpha_compress", TEXTYPE_BGRA , 4, 4, 1.0f, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, GL_BGRA , GL_UNSIGNED_BYTE };
+static textypeinfo_t textype_sRGB_dxt1 = {"sRGB_dxt1", TEXTYPE_DXT1 , 4, 0, 0.5f, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT , 0 , 0 };
+static textypeinfo_t textype_sRGB_dxt1a = {"sRGB_dxt1a", TEXTYPE_DXT1A , 4, 0, 0.5f, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 0 , 0 };
+static textypeinfo_t textype_sRGB_dxt3 = {"sRGB_dxt3", TEXTYPE_DXT3 , 4, 0, 1.0f, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 0 , 0 };
+static textypeinfo_t textype_sRGB_dxt5 = {"sRGB_dxt5", TEXTYPE_DXT5 , 4, 0, 1.0f, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 0 , 0 };
+
+typedef enum gltexturetype_e
+{
+ GLTEXTURETYPE_2D,
+ GLTEXTURETYPE_3D,
+ GLTEXTURETYPE_CUBEMAP,
+ GLTEXTURETYPE_TOTAL
+}
+gltexturetype_t;
+
+static int gltexturetypeenums[GLTEXTURETYPE_TOTAL] = {GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP_ARB};
+static int gltexturetypedimensions[GLTEXTURETYPE_TOTAL] = {2, 3, 2};