static Object P_Create_Pixmap_From_Bitmap_Data (Object win, Object data,
Object pw, Object ph,
Object fg, Object bg,
Object depth) {
register unsigned int w, h;
Check_Type (win, T_Window);
Check_Type (data, T_String);
w = Get_Integer (pw);
h = Get_Integer (ph);
if (w * h > 8 * STRING(data)->size)
Primitive_Error ("bitmap too small");
return Make_Pixmap (WINDOW(win)->dpy,
XCreatePixmapFromBitmapData (WINDOW(win)->dpy, WINDOW(win)->win,
STRING(data)->data, w, h, Get_Pixel (fg), Get_Pixel (bg),
Get_Integer (depth)));
}
void Draw_Image(SDL_Surface *surface, int x, int y, Sint8 vx, Sint8 vy)
{
/* int x = 70, y = 79; */
/* Sint8 vx = 18, vy = 26; */
/* int x = 50, y = 22; */
/* Sint8 vx = 24, vy = 34; */
int clr = 0;
Uint8 a, b, c, t;
glClear(GL_COLOR_BUFFER_BIT);
Get_Pixel(surface, x, y, &c, &b, &a, &t);
while(a != 0 || b != 0 || c != 0) {
//printf("%d %d\n", x, y);
//printf("%d\n", 54 + (200*y + x)*3);
if(x >= surface->w || y >= surface->h)
break;
vx ^= a;
vy ^= b;
clr ^= c;
if(clr) {
glBegin(GL_LINES);
glColor3f(1.0, 1.0, 1.0);
glVertex2i(x, y);
glVertex2i(x + vx, y + vy);
glEnd();
printf("%d %d\n", vx, vy);
}
x += vx;
y += vy;
Get_Pixel(surface, x, y, &c, &b, &a, &t);
#ifdef SLOWLY
SDL_Delay(10);
SDL_GL_SwapBuffers();
#endif
}
SDL_GL_SwapBuffers();
}
void Dump_Image(SDL_Surface *surface)
{
int x,y;
Uint8 r, g, b, t;
for (y=0; y < surface->h; y++) {
for (x=0; x < surface->w; x++) {
Get_Pixel(surface, x, y, &r, &g, &b, &t);
printf("(%d,%d):\t%d %d %d\n", x,y, r,g,b);
}
}
}
void try_address(SDL_Surface *surface, int x, int y, Sint8 vx, Sint8 vy)
{
int clr = 0;
Uint8 a, b, c, t;
int j = 0;
Get_Pixel(surface, x, y, &c, &b, &a, &t);
while(a != 0 || b != 0 || c != 0) {
printf("%d: %d %d \t at 0x%x\n", j, x, y, 54 + (200*y + x)*3);
if(x >= surface->w || y >= surface->h)
break;
vx ^= a;
vy ^= b;
clr ^= c;
x += vx;
y += vy;
Get_Pixel(surface, x, y, &c, &b, &a, &t);
j++;
}
}