X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Ftexture.h;h=19da006937cf536aef73bc9ae43e0ba3bc3472b1;hp=8aac05927288cfcbcdb8253230f8df97829f6c82;hb=HEAD;hpb=aead6d04308d7873dc99aa4572ce1590a89ebcbd diff --git a/source/texture.h b/source/texture.h deleted file mode 100644 index 8aac0592..00000000 --- a/source/texture.h +++ /dev/null @@ -1,224 +0,0 @@ -#ifndef MSP_GL_TEXTURE_H_ -#define MSP_GL_TEXTURE_H_ - -#include -#include -#include -#include "datatype.h" -#include "gl.h" -#include "pixelformat.h" -#include "predicate.h" -#include "resource.h" - -namespace Msp { -namespace GL { - -enum TextureFilter -{ - /// No filtering - NEAREST = GL_NEAREST, - - /// Bilinear filtering - LINEAR = GL_LINEAR, - - /// Mipmapping without filtering - NEAREST_MIPMAP_NEAREST = GL_NEAREST_MIPMAP_NEAREST, - - /// Linear filtering between two mipmap levels - NEAREST_MIPMAP_LINEAR = GL_NEAREST_MIPMAP_LINEAR, - - /// Bilinear filtering on the closest mipmap level - LINEAR_MIPMAP_NEAREST = GL_LINEAR_MIPMAP_NEAREST, - - /// Trilinear filtering between two mipmap levels - LINEAR_MIPMAP_LINEAR = GL_LINEAR_MIPMAP_LINEAR -}; - - -enum TextureWrap -{ - /// Tile the texture infinitely - REPEAT = GL_REPEAT, - - /// Extend the texels at the edge of the texture to infinity - CLAMP_TO_EDGE = GL_CLAMP_TO_EDGE, - - /// Tile the texture, with every other repetition mirrored - 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 -one of the dimensioned texture classes. - -A texture is generally rendered at a size that's either smaller or larger than -its native size, so that the texture coordinates do not exactly correspond to -the texels of the texture. The kind of filtering used, if any, is determined -by the minification and magnification filter parameters. The default is LINEAR -for magnification and NEAREST_MIPMAP_LINEAR for minification. - -When a mipmapped filter is in use, the texture consists of a stack of mipmap -images. Level 0 is the base image. Each level above 0 has half the size of -the previous level, rounded down and clamped to 1. The level with size 1 in -all dimensions is the last mipmap level. All levels must be allocated for the -texture to be usable. - -If texture coordinates fall outside of the principal range of the texture, -wrapping is applied. The default for all directions is REPEAT. -*/ -class Texture: public Resource -{ -protected: - class Loader: public DataFile::CollectionObjectLoader - { - protected: - unsigned levels; - bool srgb; - - public: - Loader(Texture &); - Loader(Texture &, Collection &); - private: - void init(); - - void external_image(const std::string &); - void filter(TextureFilter); - void generate_mipmap(bool); - void image_data(const std::string &); - void mag_filter(TextureFilter); - void max_anisotropy(float); - void min_filter(TextureFilter); - void mipmap_levels(unsigned); - void wrap(TextureWrap); - void wrap_r(TextureWrap); - void wrap_s(TextureWrap); - void wrap_t(TextureWrap); - }; - - enum ParameterMask - { - MIN_FILTER = 1, - MAG_FILTER = 2, - WRAP_S = 4, - WRAP_T = 8, - WRAP_R = 16, - COMPARE = 64, - COMPARE_FUNC = 128, - 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; - TextureWrap wrap_s; - TextureWrap wrap_t; - TextureWrap wrap_r; - bool auto_gen_mipmap; - bool compare; - Predicate cmp_func; - mutable int dirty_params; - - static int swizzle_orders[]; - - Texture(GLenum, ResourceManager * = 0); - Texture(const Texture &); - Texture &operator=(const Texture &); -public: - ~Texture(); - -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; - void set_parameter_f(GLenum, float) const; -public: - void set_min_filter(TextureFilter); - void set_mag_filter(TextureFilter); - - /** Sets filter for both minification and magnification. Since mipmapping - is not applicable to magnification, LINEAR is used instead. */ - void set_filter(TextureFilter); - - DEPRECATED void set_mipmap_levels(unsigned) { } - - void set_max_anisotropy(float); - - /** Sets the wrapping mode for all coordinates. */ - void set_wrap(TextureWrap); - - void set_wrap_s(TextureWrap); - void set_wrap_t(TextureWrap); - void set_wrap_r(TextureWrap); - - static bool can_generate_mipmap(); - - void generate_mipmap(); - - /** Sets automatic mipmap generation. If enabled, mipmaps are generated - when a texture image is uploaded. */ - void set_auto_generate_mipmap(bool); - - /// Deprecated. Use set_auto_generate_mipmap instead. - DEPRECATED void set_generate_mipmap(bool g) { set_auto_generate_mipmap(g); } - - /** Sets depth texture comparison. Has no effect on other formats. When - comparison is enabled, the third component of the texture coordinate is - compared against the texel value, and the result is returned as the texture - sample. */ - void set_compare_enabled(bool); - - /** Sets the function to use for depth comparison. */ - void set_compare_func(Predicate); - - /// Loads a Graphics::Image from a file and uploads it to the texture. - virtual void load_image(const std::string &, bool srgb = false); - - virtual void load_image(const std::string &, unsigned, bool srgb = false); - - /** Uploads an image to the texture. If storage has not been defined, it - will be set to match the image. Otherwise the image must be compatible - with the defined storage. Semantics depend on the type of texture. - - If srgb is true and storage is determined by this call, then an sRGB pixel - format will be used. */ - virtual void image(const Graphics::Image &, bool srgb = false); - - virtual void image(const Graphics::Image &, unsigned, bool srgb = false) = 0; - - GLenum get_target() const { return target; } - unsigned get_id() const { return id; } - - void bind() const { bind_to(0); } - void bind_to(unsigned) const; - - static const Texture *current(unsigned = 0); - static void unbind() { unbind_from(0); } - static void unbind_from(unsigned); - - virtual UInt64 get_data_size() const { return 0; } -}; - - -bool is_mipmapped(TextureFilter); - -} // namespace GL -} // namespace Msp - -#endif