/**
* Decompress pcx file and convert to 8 bits (no change),
* or 16 bits or 24 bits
* @param filename the file which should be loaded
* @param buffer pointer to the buffer where data are stored
* @return TRUE if it completed successfully or FALSE otherwise
*/
bool
load_pcx_into_buffer (const char *filename, char *buffer)
{
Uint32 i;
char *data;
bitmap_desc *gfx = load_pcx (filename);
if (gfx == NULL)
{
return FALSE;
}
if (bytes_per_pixel > 0)
{
if (!convert_16_or_24 (gfx))
{
LOG_ERR ("convert_16_or_24() failed!");
return TRUE;
}
}
data = gfx->pixel;
for (i = 0; i < gfx->size; i++)
{
buffer[i] = data[i];
}
free_memory (data);
free_memory ((char *) gfx);
return TRUE;
}
void pcx_fade_decomp(void **p,long *s)
{
char *buff;
load_pcx(*p,*s,A_FADE_PAL,&buff,mglob.fade_r,mglob.fade_g,mglob.fade_b);
*s=_msize(buff);
free(*p);
*p=buff;
}
void pcx_8bit_decomp(void **p,long *s)
{
char *buff;
load_pcx(*p,*s,A_8BIT,&buff);
*s=_msize(buff);
free(*p);
*p=buff;
}
void pcx_15bit_autofade(void **p,long *s)
{
char *buff;
load_pcx(*p,*s,A_16BIT,&buff);
*s=_msize(buff);
free(*p);
*p=buff;
buff[5]=0x80;
}
void pcx_8bit_nopal(void **p,long *s)
{
char *buff;
if (*p!=NULL)
{
load_pcx(*p,*s,A_8BIT_NOPAL,&buff);
*s=_msize(buff);
free(*p);
*p=buff;
}
}
void pcx_15bit_backgrnd(void **p,long *s)
{
char *buff;
long i;long *z;
if (*p!=NULL)
{
load_pcx(*p,*s,A_16BIT,&buff);
z=(long *)buff;
*s=_msize(buff);
for(i=*s;i>0;i-=4,z++) *z|=0x80008000;
free(*p);
*p=buff;
}
}
/**
* Decompress pcx file and convert to 8 bits (no change),
* or 16 bits or 24 bits
* @param filename the file which should be loaded
* @return file data buffer pointer
*/
char *
load_pcx_file (const char *filename)
{
char *buffer;
bitmap_desc *gfx = load_pcx (filename);
if (gfx == NULL)
{
return NULL;
}
if (bytes_per_pixel > 0)
{
if (!convert_16_or_24 (gfx))
{
LOG_ERR ("convert_16_or_24() failed!");
return NULL;
}
}
buffer = gfx->pixel;
free_memory ((char *) gfx);
return buffer;
}
int main(int argc, char *argv[])
{
PALETTE my_palette;
BITMAP *scr_buffer;
char pcx_name[256];
if (allegro_init() != 0)
return 1;
install_keyboard();
if (set_gfx_mode(GFX_AUTODETECT, 640, 480, 0, 0) != 0) {
if (set_gfx_mode(GFX_SAFE, 640, 480, 0, 0) != 0) {
set_gfx_mode(GFX_TEXT, 0, 0, 0, 0);
allegro_message("Unable to set any graphic mode\n%s\n", allegro_error);
return 1;
}
}
replace_filename(pcx_name, argv[0], "mysha.pcx", sizeof(pcx_name));
scr_buffer = load_pcx(pcx_name, my_palette);
if (!scr_buffer) {
set_gfx_mode(GFX_TEXT, 0, 0, 0, 0);
allegro_message("Error loading %s!\n", pcx_name);
return 1;
}
set_palette(my_palette);
blit(scr_buffer, screen, 0, 0, 0, 0, scr_buffer->w, scr_buffer->h);
while (!keypressed()) {
stretch_blit(scr_buffer, screen, 0, 0, AL_RAND()%scr_buffer->w,
AL_RAND()%scr_buffer->h, AL_RAND()%SCREEN_W, AL_RAND()%SCREEN_H,
AL_RAND()%SCREEN_W, AL_RAND()%SCREEN_H);
vsync();
}
destroy_bitmap(scr_buffer);
return 0;
}
/**
* qdgdfv_load_pcx_pal_set - Loads a graphic in PCX format setting its palette.
* @pcx: the buffer where the graphic will be stored
* @pcxfile: the file containing the graphic
* @size: the size in bytes of the graphic data
*
* This function does the same as qdgdfv_load_pcx(), but setting the palette
* store inside the file as the default.
* [Video Functions]
*/
void qdgdfv_load_pcx_pal_set(unsigned char *pcx, char *pcxfile, int size)
{
load_pcx(pcx, pcxfile, size, 2);
}
/**
* qdgdfv_load_pcx - Loads a graphic in PCX format.
* @pcx: the buffer where the graphic will be stored
* @pcxfile: the file containing the graphic
* @size: the size in bytes of the graphic data
*
* Loads a graphic into the supplied @pcx buffer. The file must be
* in 256 color PCX format. The palette included inside the file
* is not used.
* [Video Functions]
*/
void qdgdfv_load_pcx(unsigned char *pcx, char *pcxfile, int size)
{
load_pcx(pcx, pcxfile, size, 0);
}
/* This demonstrates writing. It simply saves the two bitmaps into a binary
* file.
*/
static void stdio_write_test(void)
{
FILE *fp;
PACKFILE *f;
BITMAP *bmp, *bmp2;
/* Read the bitmaps. */
bmp = load_pcx("allegro.pcx", NULL);
CHECK(bmp, "load_pcx");
bmp2 = load_pcx("mysha.pcx", NULL);
CHECK(bmp2, "load_pcx");
/* Write them with out custom vtable. */
fp = fopen("expackf.out", "wb");
CHECK(fp, "writing expackf.out");
f = pack_fopen_vtable(&stdio_vtable, fp);
CHECK(f, "writing with stdio");
save_tga_pf(f, bmp, NULL);
save_bmp_pf(f, bmp2, NULL);
destroy_bitmap(bmp);
destroy_bitmap(bmp2);
pack_fclose(f);
/* Now read them in again with our custom vtable. */
fp = fopen("expackf.out", "rb");
CHECK(fp, "fopen");
f = pack_fopen_vtable(&stdio_vtable, fp);
CHECK(f, "reading from stdio");
/* Note: in general you would need to implement a "chunking" system
* that knows where the boundary of each file is. Many file format
* loaders will happily read everything to the end of the file,
* whereas others stop reading as soon as they have all the essential
* data (e.g. there may be some metadata at the end of the file).
* Concatenating bare files together only works in examples programs.
*/
bmp = load_tga_pf(f, NULL);
CHECK(bmp, "load_tga_pf");
bmp2 = load_bmp_pf(f, NULL);
CHECK(bmp2, "load_bmp_pf");
blit(bmp, screen, 0, 0, 0, 0, bmp->w, bmp->h);
textprintf_ex(screen, font, bmp2->w + 8, 8, -1, -1,
"\"allegro.pcx\" (as tga)");
textprintf_ex(screen, font, bmp2->w + 8, 8 + 20, -1, -1,
"wrote with stdio functions");
blit(bmp2, screen, 0, 0, 0, bmp->h + 8, bmp2->w, bmp2->h);
textprintf_ex(screen, font, bmp2->w + 8, bmp->h + 8, -1, -1,
"\"mysha.pcx\" (as bmp)");
textprintf_ex(screen, font, bmp2->w + 8, bmp->h + 8 + 20, -1, -1,
"wrote with stdio functions");
destroy_bitmap(bmp);
destroy_bitmap(bmp2);
pack_fclose(f);
next();
}
int main(void)
{
allegro_init();
install_keyboard();
install_mouse();
set_gfx_mode(GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0);
buffer = create_bitmap(640, 480);
vpic[0] = load_pcx("antivirus.dat#virus_red.pcx", pal);
vpic[1] = load_pcx("antivirus.dat#virus_yellow.pcx", NULL);
vpic[2] = load_pcx("antivirus.dat#virus_blue.pcx", NULL);
map = create_bitmap(8, 16);
clear_bitmap(map);
set_palette(pal);
set_mouse_sprite(NULL);
while(!done)
{
if(key[KEY_ESC])
{
done = 1;
}
if(key[KEY_1])
{
virus = 16;
}
else if(key[KEY_2])
{
virus = 17;
}
else if(key[KEY_3])
{
virus = 18;
}
if(key[KEY_F2])
{
if(file_select_ex("Save:", filename, "pcx", 1024, 320, 240))
{
save_pcx(filename, map, pal);
}
clear_keybuf();
}
if(key[KEY_F3])
{
if(file_select_ex("Load:", filename, "pcx", 1024, 320, 240))
{
destroy_bitmap(map);
map = load_pcx(filename, NULL);
}
clear_keybuf();
}
mx = mouse_x;
my = mouse_y;
if(mouse_b & 1 && mx / 16 < 8 && my / 16 < 16)
{
map->line[my / 16][mx / 16] = virus;
}
else if(mouse_b & 2 && mx / 16 < 8 && my / 16 < 16)
{
map->line[my / 16][mx / 16] = 0;
}
clear_bitmap(buffer);
for(int i = 0; i < 16; i++)
{
for(int j = 0; j < 8; j++)
{
if(map->line[i][j])
{
draw_sprite(buffer, vpic[map->line[i][j] - 16], j * 16, i * 16);
}
}
}
draw_sprite(buffer, mouse_sprite, mouse_x, mouse_y);
blit(buffer, screen, 0, 0, 0, 0, buffer->w, buffer->h);
}
return 0;
}
