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/**
* @file
* @brief PNG and texture loading functionality
**/
#pragma once
#include "tilepick.h"
enum MipMapOptions
{
MIPMAP_CREATE,
MIPMAP_NONE,
MIPMAP_MAX,
};
// Arbitrary post-load texture processing
typedef bool(*tex_proc_func)(unsigned char *pixels, unsigned int w,
unsigned int h);
class GenericTexture
{
public:
GenericTexture();
virtual ~GenericTexture();
bool load_texture(const char *filename, MipMapOptions mip_opt,
tex_proc_func proc = nullptr,
bool force_power_of_two = true);
bool load_texture(unsigned char *pixels, unsigned int w, unsigned int h,
MipMapOptions mip_opt, int offsetx=-1, int offsety=-1);
void unload_texture();
unsigned int width() const { return m_width; }
unsigned int height() const { return m_height; }
void bind() const;
unsigned int orig_width() const { return m_orig_width; }
unsigned int orig_height() const { return m_orig_height; }
protected:
unsigned int m_handle;
unsigned int m_width;
unsigned int m_height;
unsigned int m_orig_width;
unsigned int m_orig_height;
};
class TilesTexture : public GenericTexture
{
public:
TilesTexture();
void set_info(int max, tile_info_func *info);
const tile_info &get_info(tileidx_t idx) const;
bool get_coords(tileidx_t idx, int ofs_x, int ofs_y,
float &pos_sx, float &pos_sy,
float &pos_ex, float &pos_ey,
float &tex_sx, float &tex_sy,
float &tex_ex, float &tex_ey,
bool centre = true, int ymin = -1, int ymax = -1,
float tile_x = TILE_X, float tile_y = TILE_Y) const;
protected:
int m_tile_max;
tile_info_func *m_info_func;
};
class FontWrapper;
class ImageManager
{
public:
ImageManager();
virtual ~ImageManager();
bool load_textures(bool need_mips);
void unload_textures();
inline const tile_info &tile_def_info(tile_def tile) const;
const TilesTexture &get_texture(TextureID t) const;
FontWrapper *get_glyph_font() const;
private:
// XX just use vector??
FixedVector<TilesTexture, TEX_MAX> m_textures;
};
// TODO: This function should be moved elsewhere (where?) and called by
// the ImageManager.
inline const tile_info &ImageManager::tile_def_info(tile_def tile) const
{
const auto tex_id = get_tile_texture(tile.tile);
return m_textures[tex_id].get_info(tile.tile);
}
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