void
SplashInitPlatform(Splash * splash)
{
HDC hdc;
int paletteMode;
InitializeCriticalSection(&splash->lock);
splash->isLayered = FALSE;
hdc = GetDC(NULL);
paletteMode = (GetDeviceCaps(hdc, RASTERCAPS) & RC_PALETTE) != 0;
if (UpdateLayeredWindow && !paletteMode) {
splash->isLayered = TRUE;
}
splash->byteAlignment = 4;
if (splash->isLayered) {
initFormat(&splash->screenFormat,
0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);
splash->screenFormat.premultiplied = 1;
splash->maskRequired = 0;
}
else {
splash->maskRequired = 1;
if (paletteMode) {
int numColors = GetDeviceCaps(hdc, SIZEPALETTE) -
GetDeviceCaps(hdc, NUMRESERVED);
int i;
int numComponents[3];
initFormat(&splash->screenFormat, 0, 0, 0, 0);
/* FIXME: maybe remapping to non-reserved colors would improve performance */
for (i = 0; i < numColors; i++) {
splash->colorIndex[i] = i;
}
numColors = quantizeColors(numColors, numComponents);
initColorCube(numComponents, splash->colorMap, splash->dithers,
splash->colorIndex);
splash->screenFormat.colorIndex = splash->colorIndex;
splash->screenFormat.depthBytes = 1;
splash->screenFormat.colorMap = splash->colorMap;
splash->screenFormat.dithers = splash->dithers;
splash->screenFormat.numColors = numColors;
splash->hPalette = NULL;
}
else {
initFormat(&splash->screenFormat,
0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);
}
}
ReleaseDC(NULL, hdc);
}
void
SplashInitPlatform(Splash * splash) {
int shapeVersionMajor, shapeVersionMinor;
// This setting enables the synchronous Xlib mode!
// Don't use it == 1 in production builds!
#if (defined DEBUG)
_Xdebug = 1;
#endif
pthread_mutex_init(&splash->lock, NULL);
// We should not ignore any errors.
//XSetErrorHandler(HandleError);
// XSetIOErrorHandler(HandleIOError);
XSetIOErrorHandler(NULL);
splash->display = XOpenDisplay(NULL);
if (!splash->display) {
splash->isVisible = -1;
return;
}
shapeSupported = XShapeQueryExtension(splash->display, &shapeEventBase,
&shapeErrorBase);
if (shapeSupported) {
XShapeQueryVersion(splash->display, &shapeVersionMajor,
&shapeVersionMinor);
}
splash->screen = XDefaultScreenOfDisplay(splash->display);
splash->visual = XDefaultVisualOfScreen(splash->screen);
switch (splash->visual->class) {
case TrueColor: {
int depth = XDefaultDepthOfScreen(splash->screen);
splash->byteAlignment = 1;
splash->maskRequired = shapeSupported;
initFormat(&splash->screenFormat, splash->visual->red_mask,
splash->visual->green_mask, splash->visual->blue_mask, 0);
splash->screenFormat.byteOrder =
(XImageByteOrder(splash->display) == LSBFirst ?
BYTE_ORDER_LSBFIRST : BYTE_ORDER_MSBFIRST);
splash->screenFormat.depthBytes = (depth + 7) / 8;
// TrueColor depth probably can't be less
// than 8 bits, and it's always byte padded
break;
}
case PseudoColor: {
int availableColors;
int numColors;
int numComponents[3];
unsigned long colorIndex[SPLASH_COLOR_MAP_SIZE];
XColor xColors[SPLASH_COLOR_MAP_SIZE];
int i;
int depth = XDefaultDepthOfScreen(splash->screen);
int scale = 65535 / MAX_COLOR_VALUE;
availableColors = GetNumAvailableColors(splash->display, splash->screen,
splash->visual->map_entries);
numColors = quantizeColors(availableColors, numComponents);
if (numColors > availableColors) {
// Could not allocate the color cells. Most probably
// the pool got exhausted. Disable the splash screen.
XCloseDisplay(splash->display);
splash->isVisible = -1;
splash->display = NULL;
splash->screen = NULL;
splash->visual = NULL;
fprintf(stderr, "Warning: unable to initialize the splashscreen. Not enough available color cells.\n");
return;
}
splash->cmap = AllocColors(splash->display, splash->screen,
numColors, colorIndex);
for (i = 0; i < numColors; i++) {
splash->colorIndex[i] = colorIndex[i];
}
initColorCube(numComponents, splash->colorMap, splash->dithers,
splash->colorIndex);
for (i = 0; i < numColors; i++) {
xColors[i].pixel = colorIndex[i];
xColors[i].red = (unsigned short)
QUAD_RED(splash->colorMap[colorIndex[i]]) * scale;
xColors[i].green = (unsigned short)
QUAD_GREEN(splash->colorMap[colorIndex[i]]) * scale;
xColors[i].blue = (unsigned short)
QUAD_BLUE(splash->colorMap[colorIndex[i]]) * scale;
xColors[i].flags = DoRed | DoGreen | DoBlue;
}
XStoreColors(splash->display, splash->cmap, xColors, numColors);
initFormat(&splash->screenFormat, 0, 0, 0, 0);
splash->screenFormat.colorIndex = splash->colorIndex;
splash->screenFormat.depthBytes = (depth + 7) / 8; // or always 8?
splash->screenFormat.colorMap = splash->colorMap;
splash->screenFormat.dithers = splash->dithers;
splash->screenFormat.numColors = numColors;
splash->screenFormat.byteOrder = BYTE_ORDER_NATIVE;
break;
}
default:
; /* FIXME: should probably be fixed, but javaws splash screen doesn't support other visuals either */
}
}
