int fbx_write(fbx_struct *fb, int srcX_, int srcY_, int dstX_, int dstY_,
int width_, int height_)
{
int srcX, srcY, dstX, dstY, width, height;
#ifdef _WIN32
BITMAPINFO bmi; fbx_gc gc;
#endif
if(!fb) _throw("Invalid argument");
srcX=srcX_>=0? srcX_:0; srcY=srcY_>=0? srcY_:0;
dstX=dstX_>=0? dstX_:0; dstY=dstY_>=0? dstY_:0;
width=width_>0? width_:fb->width;
height=height_>0? height_:fb->height;
if(width>fb->width) width=fb->width;
if(height>fb->height) height=fb->height;
if(srcX+width>fb->width) width=fb->width-srcX;
if(srcY+height>fb->height) height=fb->height-srcY;
#ifdef _WIN32
if(!fb->wh || fb->width<=0 || fb->height<=0 || !fb->bits)
_throw("Not initialized");
memset(&bmi, 0, sizeof(bmi));
bmi.bmiHeader.biSize=sizeof(bmi);
bmi.bmiHeader.biWidth=fb->width;
bmi.bmiHeader.biHeight=-fb->height;
bmi.bmiHeader.biPlanes=1;
bmi.bmiHeader.biBitCount=fbx_ps[fb->format]*8;
bmi.bmiHeader.biCompression=BI_RGB;
_w32(gc=GetDC(fb->wh));
_w32(SetDIBitsToDevice(gc, dstX, dstY, width, height, srcX, 0, 0, height,
&fb->bits[srcY*fb->pitch], &bmi, DIB_RGB_COLORS));
_w32(ReleaseDC(fb->wh, gc));
return 0;
#else
if(!fb->pm || !fb->shm)
if(fbx_awrite(fb, srcX, srcY, dstX, dstY, width, height)==-1) return -1;
if(fb->pm)
{
XCopyArea(fb->wh.dpy, fb->pm, fb->wh.d, fb->xgc, srcX, srcY, width,
height, dstX, dstY);
}
XFlush(fb->wh.dpy);
XSync(fb->wh.dpy, False);
return 0;
#endif
finally:
return -1;
}
// Platform-specific write test
void nativewrite(int useshm)
{
fbx_struct s; int n, i; double rbtime;
memset(&s, 0, sizeof(s));
try {
fbx(fbx_init(&s, wh, 0, 0, useshm));
if(useshm && !s.shm) _throw("MIT-SHM not available");
fprintf(stderr, "Native Pixel Format: %s", fbx_formatname(s.format));
fprintf(stderr, "\n");
if(s.width!=width || s.height!=height)
_throw("The benchmark window lost input focus or was obscured.\nSkipping native write test\n");
clearfb();
initbuf(0, 0, width, s.pitch, height, s.format, (unsigned char *)s.bits);
if(useshm)
fprintf(stderr, "FBX bottom-up write [SHM]: ");
else
fprintf(stderr, "FBX bottom-up write: ");
n=N;
do
{
n+=n;
timer.start();
for (i=0; i<n; i++)
{
if(checkdb)
{
memset(s.bits, 255, s.pitch*s.height);
fbx(fbx_awrite(&s, 0, 0, 0, 0, 0, 0));
initbuf(0, 0, width, s.pitch, height, s.format, (unsigned char *)s.bits);
}
fbx(fbx_flip(&s, 0, 0, 0, 0));
fbx(fbx_write(&s, 0, 0, 0, 0, 0, 0));
}
rbtime=timer.elapsed();
} while(rbtime<1.);
fprintf(stderr, "%f Mpixels/sec\n", (double)n*(double)(width*height)/((double)1000000.*rbtime));
clearfb();
if(useshm)
fprintf(stderr, "FBX top-down write [SHM]: ");
else
fprintf(stderr, "FBX top-down write: ");
n=N;
do
{
n+=n;
timer.start();
for (i=0; i<n; i++)
{
if(checkdb)
{
memset(s.bits, 255, s.pitch*s.height);
fbx(fbx_awrite(&s, 0, 0, 0, 0, 0, 0));
initbuf(0, 0, width, s.pitch, height, s.format, (unsigned char *)s.bits);
}
fbx(fbx_write(&s, 0, 0, 0, 0, 0, 0));
}
rbtime=timer.elapsed();
} while(rbtime<1.);
fprintf(stderr, "%f Mpixels/sec\n", (double)n*(double)(width*height)/((double)1000000.*rbtime));
} catch(rrerror &e) {fprintf(stderr, "%s\n", e.getMessage());}
fbx_term(&s);
}