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(svn r10173) -Add: Translations: added new language "Pig Latin". Already "pre-translated", only needs checking. Idea of Piglatin language was from Adam M-W
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/** @file blitter.hpp */
#ifndef BLITTER_HPP
#define BLITTER_HPP
#include "../spriteloader/spriteloader.hpp"
#include "../spritecache.h"
#include <string>
#include <map>
enum BlitterMode {
BM_NORMAL,
BM_COLOUR_REMAP,
BM_TRANSPARENT,
};
/**
* How all blitters should look like. Extend this class to make your own.
*/
class Blitter {
public:
struct BlitterParams {
const void *sprite; ///< Pointer to the sprite how ever the encoder stored it
const byte *remap; ///< XXX -- Temporary storage for remap array
int skip_left, skip_top; ///< How much pixels of the source to skip on the left and top (based on zoom of dst)
int width, height; ///< The width and height in pixels that needs to be drawn to dst
int sprite_width; ///< Real width of the sprite
int sprite_height; ///< Real height of the sprite
int left, top; ///< The offset in the 'dst' in pixels to start drawing
void *dst; ///< Destination buffer
int pitch; ///< The pitch of the destination buffer
};
typedef void *AllocatorProc(size_t size);
/**
* Get the screen depth this blitter works for.
* This is either: 8, 16, 24 or 32.
*/
virtual uint8 GetScreenDepth() = 0;
/**
* Draw an image to the screen, given an amount of params defined above.
*/
virtual void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) = 0;
/**
* Draw a colortable to the screen. This is: the color of the screen is read
* and is looked-up in the palette to match a new color, which then is put
* on the screen again.
* @param dst the destination pointer (video-buffer).
* @param width the width of the buffer.
* @param height the height of the buffer.
* @param pal the palette to use.
*/
virtual void DrawColorMappingRect(void *dst, int width, int height, int pal) = 0;
/**
* Convert a sprite from the loader to our own format.
*/
virtual Sprite *Encode(SpriteLoader::Sprite *sprite, Blitter::AllocatorProc *allocator) = 0;
/**
* Get the renderer this class depends on.
*/
virtual const char *GetRenderer() = 0;
virtual ~Blitter() { }
};
/**
* The base factory, keeping track of all blitters.
*/
class BlitterFactoryBase {
private:
char *name;
typedef std::map<std::string, BlitterFactoryBase *> Blitters;
static Blitters &GetBlitters()
{
static Blitters &s_blitters = *new Blitters();
return s_blitters;
}
static Blitter **GetActiveBlitter()
{
static Blitter *s_blitter = NULL;
return &s_blitter;
}
protected:
/**
* Register a blitter internally, based on his name.
* @param name the name of the blitter.
* @note an assert() will be trigger if 2 blitters with the same name try to register.
*/
void RegisterBlitter(const char *name)
{
/* Don't register nameless Blitters */
if (name == NULL) return;
this->name = strdup(name);
std::pair<Blitters::iterator, bool> P = GetBlitters().insert(Blitters::value_type(name, this));
assert(P.second);
}
public:
BlitterFactoryBase() :
name(NULL)
{}
virtual ~BlitterFactoryBase() { if (this->name != NULL) GetBlitters().erase(this->name); free(this->name); }
/**
* Find the requested blitter and return his class.
* @param name the blitter to select.
* @post Sets the blitter so GetCurrentBlitter() returns it too.
*/
static Blitter *SelectBlitter(const char *name)
{
if (GetBlitters().size() == 0) return NULL;
Blitters::iterator it = GetBlitters().begin();
for (; it != GetBlitters().end(); it++) {
BlitterFactoryBase *b = (*it).second;
if (strcasecmp(name, b->name) == 0) {
Blitter *newb = b->CreateInstance();
*GetActiveBlitter() = newb;
return newb;
}
}
return NULL;
}
/**
* Get the current active blitter (always set by calling SelectBlitter).
*/
static Blitter *GetCurrentBlitter()
{
return *GetActiveBlitter();
}
static char *GetBlittersInfo(char *p, const char *last)
{
p += snprintf(p, last - p, "List of blitters:\n");
Blitters::iterator it = GetBlitters().begin();
for (; it != GetBlitters().end(); it++) {
BlitterFactoryBase *b = (*it).second;
p += snprintf(p, last - p, "%18s: %s\n", b->name, b->GetDescription());
}
p += snprintf(p, last - p, "\n");
return p;
}
/**
* Get a nice description of the blitter-class.
*/
virtual const char *GetDescription() = 0;
/**
* Create an instance of this Blitter-class.
*/
virtual Blitter *CreateInstance() = 0;
};
/**
* A template factory, so ->GetName() works correctly. This because else some compiler will complain.
*/
template <class T>
class BlitterFactory: public BlitterFactoryBase {
public:
BlitterFactory() { this->RegisterBlitter(((T *)this)->GetName()); }
/**
* Get the long, human readable, name for the Blitter-class.
*/
const char *GetName();
};
#endif /* BLITTER_HPP */
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