private static X11GLXGraphicsConfiguration chooseGraphicsConfigurationFBConfig(
GLCapabilitiesImmutable capsChosen,
GLCapabilitiesImmutable capsReq,
GLCapabilitiesChooser chooser,
X11GraphicsScreen x11Screen) {
int recommendedIndex = -1;
PointerBuffer fbcfgsL = null;
GLProfile glProfile = capsChosen.getGLProfile();
boolean onscreen = capsChosen.isOnscreen();
boolean usePBuffer = capsChosen.isPBuffer();
// Utilizing FBConfig
//
AbstractGraphicsDevice absDevice = x11Screen.getDevice();
long display = absDevice.getHandle();
int screen = x11Screen.getIndex();
final X11GLXDrawableFactory factory =
(X11GLXDrawableFactory) GLDrawableFactory.getDesktopFactory();
final boolean isMultisampleAvailable = factory.isGLXMultisampleAvailable(absDevice);
int[] attribs =
X11GLXGraphicsConfiguration.GLCapabilities2AttribList(
capsChosen, true, isMultisampleAvailable, display, screen);
int[] count = {-1};
ArrayList /*<X11GLCapabilities>*/ availableCaps = new ArrayList();
final int winattrmask = GLGraphicsConfigurationUtil.getWinAttributeBits(onscreen, usePBuffer);
// 1st choice: get GLCapabilities based on users GLCapabilities setting recommendedIndex as
// preferred choice
fbcfgsL = GLX.glXChooseFBConfig(display, screen, attribs, 0, count, 0);
if (fbcfgsL != null && fbcfgsL.limit() > 0) {
for (int i = 0; i < fbcfgsL.limit(); i++) {
if (!X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(
availableCaps,
glProfile,
display,
fbcfgsL.get(i),
winattrmask,
isMultisampleAvailable)) {
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: FBConfig invalid (1): ("
+ x11Screen
+ ","
+ capsChosen
+ "): fbcfg: "
+ toHexString(fbcfgsL.get(i)));
}
}
}
if (availableCaps.size() > 0) {
recommendedIndex =
capsChosen.isBackgroundOpaque() ? 0 : -1; // only use recommended idx if not translucent
if (DEBUG) {
System.err.println(
"glXChooseFBConfig recommended fbcfg "
+ toHexString(fbcfgsL.get(0))
+ ", idx "
+ recommendedIndex);
System.err.println("user caps " + capsChosen);
System.err.println("fbcfg caps " + availableCaps.get(0));
}
} else if (DEBUG) {
System.err.println(
"glXChooseFBConfig no caps for recommended fbcfg " + toHexString(fbcfgsL.get(0)));
System.err.println("user caps " + capsChosen);
}
}
// 2nd choice: get all GLCapabilities available, no preferred recommendedIndex available
if (0 == availableCaps.size()) {
// reset ..
recommendedIndex = -1;
fbcfgsL = GLX.glXChooseFBConfig(display, screen, null, 0, count, 0);
if (fbcfgsL == null || fbcfgsL.limit() <= 0) {
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: Failed glXChooseFBConfig ("
+ x11Screen
+ ","
+ capsChosen
+ "): "
+ fbcfgsL
+ ", "
+ count[0]);
}
return null;
}
for (int i = 0; i < fbcfgsL.limit(); i++) {
if (!X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(
availableCaps,
glProfile,
display,
fbcfgsL.get(i),
winattrmask,
isMultisampleAvailable)) {
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: FBConfig invalid (2): ("
+ x11Screen
+ "): fbcfg: "
+ toHexString(fbcfgsL.get(i)));
}
}
}
}
int chosenIndex = chooseCapabilities(chooser, capsChosen, availableCaps, recommendedIndex);
if (0 > chosenIndex) {
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationFBConfig: failed, return null");
Thread.dumpStack();
}
return null;
}
X11GLCapabilities chosenCaps = (X11GLCapabilities) availableCaps.get(chosenIndex);
return new X11GLXGraphicsConfiguration(x11Screen, chosenCaps, capsReq, chooser);
}
private static X11GLXGraphicsConfiguration chooseGraphicsConfigurationXVisual(
GLCapabilitiesImmutable capsChosen,
GLCapabilitiesImmutable capsReq,
GLCapabilitiesChooser chooser,
X11GraphicsScreen x11Screen) {
if (chooser == null) {
chooser = new DefaultGLCapabilitiesChooser();
}
GLProfile glProfile = capsChosen.getGLProfile();
final int winattrmask =
GLGraphicsConfigurationUtil.getWinAttributeBits(
capsChosen.isOnscreen(), false /* pbuffer */);
ArrayList availableCaps = new ArrayList();
int recommendedIndex = -1;
AbstractGraphicsDevice absDevice = x11Screen.getDevice();
long display = absDevice.getHandle();
int screen = x11Screen.getIndex();
final X11GLXDrawableFactory factory =
(X11GLXDrawableFactory) GLDrawableFactory.getDesktopFactory();
final boolean isMultisampleAvailable = factory.isGLXMultisampleAvailable(absDevice);
int[] attribs =
X11GLXGraphicsConfiguration.GLCapabilities2AttribList(
capsChosen, false, isMultisampleAvailable, display, screen);
// 1st choice: get GLCapabilities based on users GLCapabilities setting recommendedIndex as
// preferred choice
XVisualInfo recommendedVis = GLX.glXChooseVisual(display, screen, attribs, 0);
if (DEBUG) {
System.err.print("glXChooseVisual recommended ");
if (recommendedVis == null) {
System.err.println("null visual");
} else {
System.err.println("visual id " + toHexString(recommendedVis.getVisualid()));
}
}
// 2nd choice: get all GLCapabilities available, preferred recommendedIndex might be available
// if 1st choice was successful
int[] count = new int[1];
XVisualInfo template = XVisualInfo.create();
template.setScreen(screen);
XVisualInfo[] infos =
X11Lib.XGetVisualInfo(display, X11Lib.VisualScreenMask, template, count, 0);
if (infos == null || infos.length < 1) {
throw new GLException("Error while enumerating available XVisualInfos");
}
for (int i = 0; i < infos.length; i++) {
if (!X11GLXGraphicsConfiguration.XVisualInfo2GLCapabilities(
availableCaps, glProfile, display, infos[i], winattrmask, isMultisampleAvailable)) {
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationXVisual: XVisual invalid: ("
+ x11Screen
+ "): fbcfg: "
+ toHexString(infos[i].getVisualid()));
}
} else {
// Attempt to find the visual chosenIndex by glXChooseVisual, if not translucent
if (capsChosen.isBackgroundOpaque()
&& recommendedVis != null
&& recommendedVis.getVisualid() == infos[i].getVisualid()) {
recommendedIndex = availableCaps.size() - 1;
}
}
}
int chosenIndex = chooseCapabilities(chooser, capsChosen, availableCaps, recommendedIndex);
if (0 > chosenIndex) {
if (DEBUG) {
System.err.println(
"X11GLXGraphicsConfiguration.chooseGraphicsConfigurationXVisual: failed, return null");
Thread.dumpStack();
}
return null;
}
X11GLCapabilities chosenCaps = (X11GLCapabilities) availableCaps.get(chosenIndex);
return new X11GLXGraphicsConfiguration(x11Screen, chosenCaps, capsReq, chooser);
}
public static IntBuffer GLCapabilities2AttribList(GLCapabilitiesImmutable caps) {
final IntBuffer attrs = Buffers.newDirectIntBuffer(32);
int idx = 0;
attrs.put(idx++, EGL.EGL_SURFACE_TYPE);
final int surfaceType;
if (caps.isOnscreen()) {
surfaceType = EGL.EGL_WINDOW_BIT;
} else if (caps.isFBO()) {
surfaceType = EGL.EGL_PBUFFER_BIT; // native replacement!
} else if (caps.isPBuffer()) {
surfaceType = EGL.EGL_PBUFFER_BIT;
} else if (caps.isBitmap()) {
surfaceType = EGL.EGL_PIXMAP_BIT;
} else {
throw new GLException("no surface type set in caps: " + caps);
}
attrs.put(idx++, surfaceType);
attrs.put(idx++, EGL.EGL_RED_SIZE);
attrs.put(idx++, caps.getRedBits());
attrs.put(idx++, EGL.EGL_GREEN_SIZE);
attrs.put(idx++, caps.getGreenBits());
attrs.put(idx++, EGL.EGL_BLUE_SIZE);
attrs.put(idx++, caps.getBlueBits());
if (caps.getAlphaBits() > 0) {
attrs.put(idx++, EGL.EGL_ALPHA_SIZE);
attrs.put(idx++, caps.getAlphaBits());
}
if (caps.getStencilBits() > 0) {
attrs.put(idx++, EGL.EGL_STENCIL_SIZE);
attrs.put(idx++, caps.getStencilBits());
}
attrs.put(idx++, EGL.EGL_DEPTH_SIZE);
attrs.put(idx++, caps.getDepthBits());
if (caps.getSampleBuffers()) {
if (caps.getSampleExtension().equals(GLGraphicsConfigurationUtil.NV_coverage_sample)) {
attrs.put(idx++, EGLExt.EGL_COVERAGE_BUFFERS_NV);
attrs.put(idx++, 1);
attrs.put(idx++, EGLExt.EGL_COVERAGE_SAMPLES_NV);
attrs.put(idx++, caps.getNumSamples());
} else {
// try default ..
attrs.put(idx++, EGL.EGL_SAMPLE_BUFFERS);
attrs.put(idx++, 1);
attrs.put(idx++, EGL.EGL_SAMPLES);
attrs.put(idx++, caps.getNumSamples());
}
}
attrs.put(idx++, EGL.EGL_TRANSPARENT_TYPE);
attrs.put(idx++, caps.isBackgroundOpaque() ? EGL.EGL_NONE : EGL.EGL_TRANSPARENT_TYPE);
// 22
if (!caps.isBackgroundOpaque()) {
attrs.put(idx++, EGL.EGL_TRANSPARENT_RED_VALUE);
attrs.put(
idx++,
caps.getTransparentRedValue() >= 0 ? caps.getTransparentRedValue() : EGL.EGL_DONT_CARE);
attrs.put(idx++, EGL.EGL_TRANSPARENT_GREEN_VALUE);
attrs.put(
idx++,
caps.getTransparentGreenValue() >= 0
? caps.getTransparentGreenValue()
: EGL.EGL_DONT_CARE);
attrs.put(idx++, EGL.EGL_TRANSPARENT_BLUE_VALUE);
attrs.put(
idx++,
caps.getTransparentBlueValue() >= 0 ? caps.getTransparentBlueValue() : EGL.EGL_DONT_CARE);
/**
* Not define in EGL attrs.put(idx++, EGL.EGL_TRANSPARENT_ALPHA_VALUE; attrs.put(idx++,
* caps.getTransparentAlphaValue()>=0?caps.getTransparentAlphaValue():EGL.EGL_DONT_CARE;
*/
}
// 28
attrs.put(idx++, EGL.EGL_RENDERABLE_TYPE);
if (caps.getGLProfile().usesNativeGLES1()) {
attrs.put(idx++, EGL.EGL_OPENGL_ES_BIT);
} else if (caps.getGLProfile().usesNativeGLES2()) {
attrs.put(idx++, EGL.EGL_OPENGL_ES2_BIT);
} else if (caps.getGLProfile().usesNativeGLES3()) {
if (GLRendererQuirks.existStickyDeviceQuirk(
GLDrawableFactory.getEGLFactory().getDefaultDevice(),
GLRendererQuirks.GLES3ViaEGLES2Config)) {
attrs.put(idx++, EGL.EGL_OPENGL_ES2_BIT);
} else {
attrs.put(idx++, EGLExt.EGL_OPENGL_ES3_BIT_KHR);
}
} else {
attrs.put(idx++, EGL.EGL_OPENGL_BIT);
}
// 30
attrs.put(idx++, EGL.EGL_NONE);
return attrs;
}