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122 lines
3.9 KiB
C++
122 lines
3.9 KiB
C++
// Filename: textureProperties.h
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// Created by: drose (28Nov00)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef TEXTUREPROPERTIES_H
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#define TEXTUREPROPERTIES_H
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#include "pandatoolbase.h"
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#include "eggTexture.h"
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#include "typedWritable.h"
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class PNMFileType;
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class FactoryParams;
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////////////////////////////////////////////////////////////////////
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// Class : TextureProperties
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// Description : This is the set of characteristics of a texture that,
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// if different from another texture, prevent the two
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// textures from sharing a PaletteImage. It includes
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// properties such as mipmapping, number of channels,
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// etc.
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////////////////////////////////////////////////////////////////////
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class TextureProperties : public TypedWritable {
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public:
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TextureProperties();
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TextureProperties(const TextureProperties ©);
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void operator = (const TextureProperties ©);
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void clear_basic();
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bool has_num_channels() const;
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int get_num_channels() const;
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void set_num_channels(int num_channels);
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void force_grayscale();
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void force_nonalpha();
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bool uses_alpha() const;
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string get_string() const;
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void update_properties(const TextureProperties &other);
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void fully_define();
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void update_egg_tex(EggTexture *egg_tex) const;
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bool egg_properties_match(const TextureProperties &other) const;
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bool operator < (const TextureProperties &other) const;
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bool operator == (const TextureProperties &other) const;
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bool operator != (const TextureProperties &other) const;
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EggTexture::Format _format;
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bool _force_format; // true when format has been explicitly specified
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bool _generic_format; // true if 'generic' keyword, meaning rgba8 -> rgba.
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bool _keep_format; // true if 'keep-format' keyword.
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EggTexture::FilterType _minfilter, _magfilter;
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int _anisotropic_degree;
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PNMFileType *_color_type;
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PNMFileType *_alpha_type;
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private:
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static string get_format_string(EggTexture::Format format);
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static string get_filter_string(EggTexture::FilterType filter_type);
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static string get_anisotropic_degree_string(int aniso_degree);
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static string get_type_string(PNMFileType *color_type,
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PNMFileType *alpha_type);
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static EggTexture::Format union_format(EggTexture::Format a,
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EggTexture::Format b);
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static EggTexture::FilterType union_filter(EggTexture::FilterType a,
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EggTexture::FilterType b);
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bool _got_num_channels;
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int _num_channels;
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int _effective_num_channels;
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// The TypedWritable interface follows.
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public:
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static void register_with_read_factory();
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virtual void write_datagram(BamWriter *writer, Datagram &datagram);
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virtual int complete_pointers(TypedWritable **p_list,
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BamReader *manager);
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protected:
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static TypedWritable *make_TextureProperties(const FactoryParams ¶ms);
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public:
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void fillin(DatagramIterator &scan, BamReader *manager);
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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TypedWritable::init_type();
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register_type(_type_handle, "TextureProperties",
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TypedWritable::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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private:
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static TypeHandle _type_handle;
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};
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#endif
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