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package com.mbien.opencl;
import java.nio.Buffer;
import com.mbien.opencl.CLBuffer.Mem;
import com.sun.opengl.impl.GLContextImpl;
import com.sun.opengl.impl.macosx.cgl.MacOSXCGLContext;
import com.sun.opengl.impl.windows.wgl.WindowsWGLContext;
import com.sun.opengl.impl.x11.glx.X11GLXContext;
import java.nio.LongBuffer;
import javax.media.nativewindow.DefaultGraphicsConfiguration;
import javax.media.opengl.GLContext;
import static com.mbien.opencl.CLGLI.*;
/**
*
* @author Michael Bien
*/
public final class CLGLContext extends CLContext {
final long glContextID;
private CLGLContext(long clContextID, long glContextID) {
super(clContextID);
this.glContextID = glContextID;
}
public static CLGLContext create(GLContext glContext) {
//UNIX
//cl_context_properties props[] = {
// CL_GL_CONTEXT_KHR, (cl_context_properties)glXGetCurrentContext(),
// CL_GLX_DISPLAY_KHR, (cl_context_properties) glXGetCurrentDisplay(),
// CL_CONTEXT_PLATFORM, (cl_context_properties)cpPlatform, 0};
//WIN32
//cl_context_properties props[] = {
// CL_GL_CONTEXT_KHR, (cl_context_properties)TODO0,
// CL_WGL_HDC_KHR, (cl_context_properties)TODO 0,
// CL_CONTEXT_PLATFORM, (cl_context_properties)cpPlatform, 0};
//MACOSX
//cl_context_properties props[] = {
// CL_CGL_SHAREGROUP_KHR, (cl_context_properties)TODO 0,
// CL_CONTEXT_PLATFORM, (cl_context_properties)cpPlatform, 0};
long glID = 0;
GLContextImpl ctxImpl = (GLContextImpl)glContext;
DefaultGraphicsConfiguration config = (DefaultGraphicsConfiguration)ctxImpl.getDrawableImpl()
.getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration();
LongBuffer properties = LongBuffer.allocate(5);
if(glContext instanceof X11GLXContext) {
long handle = config.getScreen().getDevice().getHandle();
glID = ((X11GLXContext)glContext).getContext();
properties.put(CLGLI.CL_GL_CONTEXT_KHR).put(glID)
.put(CLGLI.CL_GLX_DISPLAY_KHR).put(handle);
}else if(glContext instanceof WindowsWGLContext) {
// TODO test on windows
throw new RuntimeException("cl-gl interoperability on windows not yet implemented");
}else if(glContext instanceof MacOSXCGLContext) {
// TODO test on mac
throw new RuntimeException("cl-gl interoperability on mac not yet implemented");
}else{
throw new RuntimeException("unsupported GLContext: "+glContext);
}
properties.put(0).rewind(); // 0 terminated array
long clID = createContextFromType(properties, CL_DEVICE_TYPE_ALL);
return new CLGLContext(clID, glID);
}
public final <B extends Buffer> CLBuffer<B> createFromGLBuffer(B directBuffer, int glBuffer, Mem... flags) {
return createFromGLBuffer(directBuffer, glBuffer, Mem.flagsToInt(flags));
}
public final <B extends Buffer> CLBuffer<B> createFromGLBuffer(B directBuffer, int glBuffer, int flags) {
CLBuffer<B> buffer = new CLBuffer<B>(this, directBuffer, glBuffer, flags);
buffers.add(buffer);
return buffer;
}
// TODO move somewhere else
public GLObjectType getGLObjectType(CLBuffer<?> buffer) {
int[] array = new int[1];
int ret = ((CLGLI)cl).clGetGLObjectInfo(buffer.ID, array, 0, null, 0);
CLException.checkForError(ret, "error while asking for gl object info");
return GLObjectType.valueOf(array[0]);
}
public enum GLObjectType {
GL_OBJECT_BUFFER(CL_GL_OBJECT_BUFFER),
GL_OBJECT_TEXTURE2D(CL_GL_OBJECT_TEXTURE2D),
GL_OBJECT_TEXTURE3D(CL_GL_OBJECT_TEXTURE3D),
GL_OBJECT_RENDERBUFFER(CL_GL_OBJECT_RENDERBUFFER);
public final int TYPE;
private GLObjectType(int type) {
this.TYPE = type;
}
public static GLObjectType valueOf(int type) {
if(type == CL_GL_OBJECT_BUFFER)
return GL_OBJECT_BUFFER;
else if(type == CL_GL_OBJECT_TEXTURE2D)
return GL_OBJECT_TEXTURE2D;
else if(type == CL_GL_OBJECT_TEXTURE3D)
return GL_OBJECT_TEXTURE3D;
else if(type == CL_GL_OBJECT_RENDERBUFFER)
return GL_OBJECT_RENDERBUFFER;
return null;
}
}
}
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