/*:::::*/
static int driver_init(char *title, int w, int h, int depth_arg, int refresh_rate, int flags)
{
int depth = MAX(8, depth_arg);
if (depth == 8) {
depth = 24;
blitter = fb_hGetBlitter(32, FALSE);
} else {
blitter = NULL;
}
if (flags & DRIVER_OPENGL)
return -1;
if (!XVideoSetMode(w, h, depth == 32 ? 24 : depth, refresh_rate))
return -1;
framebuffer = XVideoGetFB();
quitting = FALSE;
//XInput_Init();
/* !!!FIXME!!! use rtlib thread creation function */
XCreateThread(driver_update, NULL, NULL);
return 0;
}
static void XBOX_UpdateRects(_THIS, int numrects, SDL_Rect *rects)
{
// note that this whole function assumes that the physical screen
// is in 640x400 mode. The logical screen is centered in the physical
// screen... one of these days I will change this to use the video cards
// graphic modes properly!
int i, j, k;
int xinc, yinc, destinc;
unsigned char *src = NULL, *dest = NULL;
int SCREEN_WIDTH = 640;
int SCREEN_HEIGHT = 480;
int SCREEN_PIXELWIDTH = 4;
// center the screen
unsigned char* VIDEO_BUFFER_ADDR = (unsigned char*)XVideoGetFB() + (((SCREEN_HEIGHT - this->screen->h)/2) * (SCREEN_WIDTH * SCREEN_PIXELWIDTH)) + (((SCREEN_WIDTH - this->screen->w)/2) * SCREEN_PIXELWIDTH);
// These are the values for the incoming image
xinc = this->screen->format->BytesPerPixel ;
yinc = this->screen->pitch ;
for (i = 0; i < numrects; ++ i)
{
int x = rects[i].x;
int y = rects[i].y;
int w = rects[i].w;
int h = rects[i].h;
src = this->screen->pixels + y*yinc + x*xinc;
dest = (unsigned char*)VIDEO_BUFFER_ADDR;
destinc = SCREEN_WIDTH * SCREEN_PIXELWIDTH;
unsigned char *ptrsrc, *ptrdst;
for (j = h; j > 0; --j, src += yinc, dest += destinc)
{
ptrsrc = src;
ptrdst = dest;
for (k = w; k > 0; --k)
{
unsigned char r, g, b;
if (this->screen->format->BytesPerPixel == 1)
SDL_GetRGB(*ptrsrc, this->screen->format, &r, &g, &b);
else if (this->screen->format->BytesPerPixel == 2)
SDL_GetRGB(*(unsigned short *)ptrsrc, this->screen->format, &r, &g, &b);
else
SDL_GetRGB(*(unsigned int *)ptrsrc, this->screen->format, &r, &g, &b);
*ptrdst++ = b;
*ptrdst++ = g;
*ptrdst++ = r;
*ptrdst++ = 0; ptrsrc += xinc;
}
}
}
}
