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#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include "main.h"
#include "list.h"
#include "storage.h"
#include "interface.h"
#include "image.h"
static list_t *listStorage;
static bool_t isImageDataInit = FALSE;
bool_t isImageInicialized()
{
return isImageDataInit;
}
/*
* Inicializuje globalny zoznam obrazkov
*/
void initImageData()
{
assert( isInterfaceInicialized() == TRUE );
printf("init image database..\n");
listStorage = newStorage();
isImageDataInit = TRUE;
}
static SDL_Surface *loadImage(const char *filename, int alpha)
{
SDL_Surface *tmp;
SDL_Surface *ret;
char str[STR_PATH_SIZE];
sprintf(str, PATH_IMAGE "%s", filename);
accessExistFile(str);
if( ( tmp = IMG_Load(str) ) == NULL )
{
fprintf(stderr, "%s\n", SDL_GetError());
return NULL;
}
if( ( ret = (alpha) ? SDL_DisplayFormatAlpha(tmp) : SDL_DisplayFormat(tmp) ) == NULL )
{
fprintf(stderr, "%s\n", SDL_GetError());
SDL_FreeSurface(tmp);
return NULL;
}
SDL_FreeSurface(tmp);
return ret;
}
image_t* newImage(SDL_Surface *surface)
{
image_t *new;
assert( surface != NULL );
new = malloc( sizeof(image_t) );
new->image = surface;
new->w = surface->w;
new->h = surface->h;
return new;
}
static void destroyImage(image_t *p)
{
assert( p != NULL );
SDL_FreeSurface((SDL_Surface *)p->image);
free(p);
}
/*
* Prida obrazok do globalneho zoznamu obrazkov
* *file - nazov suboru v ktorom je obrazok ulozeny
* *name - nazov obrazku ( pouzije sa ako vyhadavaci retazec v zazanem )
* alpha - 0 - nema alpha kanal | 1 - ma alpha kanal
*/
image_t* addImageData(char *file, int alpha, char *name, char *group)
{
SDL_Surface *surface;
image_t *new;
assert( file != NULL );
assert( name != NULL );
assert( group != NULL );
surface = loadImage(file, alpha);
new = newImage(surface);
addItemToStorage(listStorage, group, name, new );
printf("load image %s\n", file);
return new;
}
/*
* Vrati odkaz na image_data v globalnom zozname obrazkov
* a nazvom *s
*/
image_t* getImage(char *group, char *name)
{
assert( group != NULL );
assert( name != NULL );
return getItemFromStorage(listStorage, group, name);
}
void delImage(char *group, char *name)
{
assert( group != NULL );
assert( name != NULL );
delItemFromStorage(listStorage, group, name, destroyImage);
}
void delAllImageInGroup(char *group)
{
assert( group != NULL );
delAllItemFromStorage(listStorage, group, destroyImage);
}
void drawImage(image_t *p, int x,int y, int px, int py, int w, int h)
{
static SDL_Surface *screen = NULL;
SDL_Rect dst_rect, src_rect;
if( screen == NULL )
{
screen = getSDL_Screen();
}
dst_rect.x = x;
dst_rect.y = y;
src_rect.x = px;
src_rect.y = py;
src_rect.w = w;
src_rect.h = h;
SDL_BlitSurface(p->image, &src_rect, screen, &dst_rect);
}
/*
* Odstrani zoznam obrazkov z pamate
*/
void quitImageData()
{
printf("quit image database..\n");
destroyStorage(listStorage, destroyImage);
isImageDataInit = FALSE;
}
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