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Diffstat (limited to 'src/classes/com/sun/opengl/impl/macosx/MacOSXPbufferGLContext.java')
-rw-r--r--src/classes/com/sun/opengl/impl/macosx/MacOSXPbufferGLContext.java340
1 files changed, 0 insertions, 340 deletions
diff --git a/src/classes/com/sun/opengl/impl/macosx/MacOSXPbufferGLContext.java b/src/classes/com/sun/opengl/impl/macosx/MacOSXPbufferGLContext.java
deleted file mode 100644
index c4e3058da..000000000
--- a/src/classes/com/sun/opengl/impl/macosx/MacOSXPbufferGLContext.java
+++ /dev/null
@@ -1,340 +0,0 @@
-package com.sun.opengl.impl.macosx;
-
-import java.security.*;
-import java.util.*;
-
-import javax.media.opengl.*;
-import com.sun.opengl.impl.*;
-
-public class MacOSXPbufferGLContext extends MacOSXGLContext {
- protected MacOSXPbufferGLDrawable drawable;
-
- // State for render-to-texture and render-to-texture-rectangle support
- private int textureTarget; // e.g. GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE_NV
- private int texture; // actual texture object
-
- private static boolean isTigerOrLater;
-
- static {
- String osVersion =
- (String) AccessController.doPrivileged(new PrivilegedAction() {
- public Object run() {
- return System.getProperty("os.version");
- }
- });
- StringTokenizer tok = new StringTokenizer(osVersion, ". ");
- int major = Integer.parseInt(tok.nextToken());
- int minor = Integer.parseInt(tok.nextToken());
- isTigerOrLater = ((major > 10) || (minor > 3));
- }
-
- public MacOSXPbufferGLContext(MacOSXPbufferGLDrawable drawable,
- GLContext shareWith) {
- super(drawable, shareWith);
- this.drawable = drawable;
- initOpenGLImpl();
- }
-
- public void bindPbufferToTexture() {
- GL gl = getGL();
- gl.glBindTexture(textureTarget, texture);
- // FIXME: not clear whether this is really necessary, but since
- // the API docs seem to imply it is and since it doesn't seem to
- // impact performance, leaving it in
- CGL.setContextTextureImageToPBuffer(nsContext, drawable.getPbuffer(), GL.GL_FRONT);
- }
-
- public void releasePbufferFromTexture() {
- }
-
- protected int makeCurrentImpl() throws GLException {
- if (drawable.getPbuffer() == 0) {
- if (DEBUG) {
- System.err.println("Pbuffer not instantiated yet for " + this);
- }
- // pbuffer not instantiated yet
- return CONTEXT_NOT_CURRENT;
- }
-
- if (getOpenGLMode() != drawable.getOpenGLMode()) {
- setOpenGLMode(drawable.getOpenGLMode());
- }
-
- boolean created = false;
- if (nsContext == 0) {
- if (!create()) {
- return CONTEXT_NOT_CURRENT;
- }
- if (DEBUG) {
- System.err.println("!!! Created OpenGL context " + toHexString(nsContext) + " for " + getClass().getName());
- }
- created = true;
- }
-
- if (!impl.makeCurrent(nsContext)) {
- throw new GLException("Error making nsContext current");
- }
-
- if (created) {
- resetGLFunctionAvailability();
-
- // Initialize render-to-texture support if requested
- boolean rect = drawable.getCapabilities().getPbufferRenderToTextureRectangle();
- GL gl = getGL();
- if (rect) {
- if (!gl.isExtensionAvailable("GL_EXT_texture_rectangle")) {
- System.err.println("MacOSXPbufferGLContext: WARNING: GL_EXT_texture_rectangle extension not " +
- "supported; skipping requested render_to_texture_rectangle support for pbuffer");
- rect = false;
- }
- }
- textureTarget = (rect ? GL.GL_TEXTURE_RECTANGLE_EXT : GL.GL_TEXTURE_2D);
- int[] tmp = new int[1];
- gl.glGenTextures(1, tmp, 0);
- texture = tmp[0];
- gl.glBindTexture(textureTarget, texture);
- gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST);
- gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST);
- gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_WRAP_S, GL.GL_CLAMP_TO_EDGE);
- gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_WRAP_T, GL.GL_CLAMP_TO_EDGE);
- gl.glCopyTexImage2D(textureTarget, 0, GL.GL_RGB, 0, 0, drawable.getWidth(), drawable.getHeight(), 0);
-
- return CONTEXT_CURRENT_NEW;
- }
- return CONTEXT_CURRENT;
- }
-
- protected void releaseImpl() throws GLException {
- if (!impl.release(nsContext)) {
- throw new GLException("Error releasing OpenGL nsContext");
- }
- }
-
- protected void destroyImpl() throws GLException {
- if (nsContext != 0) {
- if (!impl.destroy(nsContext)) {
- throw new GLException("Unable to delete OpenGL context");
- }
- if (DEBUG) {
- System.err.println("!!! Destroyed OpenGL context " + nsContext);
- }
- nsContext = 0;
- GLContextShareSet.contextDestroyed(this);
- }
- }
-
- public void setSwapInterval(int interval) {
- if (nsContext == 0) {
- throw new GLException("OpenGL context not current");
- }
- impl.setSwapInterval(nsContext, interval);
- }
-
- public int getFloatingPointMode() {
- return GLPbuffer.APPLE_FLOAT;
- }
-
- protected boolean create() {
- GLCapabilities capabilities = drawable.getCapabilities();
- if (capabilities.getPbufferFloatingPointBuffers() &&
- !isTigerOrLater) {
- throw new GLException("Floating-point pbuffers supported only on OS X 10.4 or later");
- }
- // Change our OpenGL mode to match that of any share context before we create ourselves
- MacOSXGLContext other = (MacOSXGLContext) GLContextShareSet.getShareContext(this);
- if (other != null) {
- setOpenGLMode(other.getOpenGLMode());
- }
- // Will throw exception upon error
- nsContext = impl.create();
- return true;
- }
-
- //---------------------------------------------------------------------------
- // OpenGL "mode switching" functionality
- //
- private boolean haveSetOpenGLMode = false;
- // FIXME: should consider switching the default mode based on
- // whether the Java2D/JOGL bridge is active -- need to ask ourselves
- // whether it's more likely that we will share with a GLCanvas or a
- // GLJPanel when the bridge is turned on
- private int openGLMode = MacOSXGLDrawable.NSOPENGL_MODE;
- // Implementation object (either NSOpenGL-based or CGL-based)
- protected Impl impl;
-
- public void setOpenGLMode(int mode) {
- if (mode == openGLMode) {
- return;
- }
- if (haveSetOpenGLMode) {
- throw new GLException("Can't switch between using NSOpenGLPixelBuffer and CGLPBufferObj more than once");
- }
- destroyImpl();
- drawable.setOpenGLMode(mode);
- openGLMode = mode;
- haveSetOpenGLMode = true;
- if (DEBUG) {
- System.err.println("Switching PBuffer context mode to " +
- ((mode == MacOSXGLDrawable.NSOPENGL_MODE) ? "NSOPENGL_MODE" : "CGL_MODE"));
- }
- initOpenGLImpl();
- }
-
- public int getOpenGLMode() {
- return openGLMode;
- }
-
- private void initOpenGLImpl() {
- switch (openGLMode) {
- case MacOSXGLDrawable.NSOPENGL_MODE:
- impl = new NSOpenGLImpl();
- break;
- case MacOSXGLDrawable.CGL_MODE:
- impl = new CGLImpl();
- break;
- default:
- throw new InternalError("Illegal implementation mode " + openGLMode);
- }
- }
-
- // Abstract interface for implementation of this context (either
- // NSOpenGL-based or CGL-based)
- interface Impl {
- public long create();
- public boolean destroy(long ctx);
- public boolean makeCurrent(long ctx);
- public boolean release(long ctx);
- public void setSwapInterval(long ctx, int interval);
- }
-
- // NSOpenGLContext-based implementation
- class NSOpenGLImpl implements Impl {
- public long create() {
- GLCapabilities capabilities = drawable.getCapabilities();
- if (capabilities.getPbufferFloatingPointBuffers() &&
- !isTigerOrLater) {
- throw new GLException("Floating-point pbuffers supported only on OS X 10.4 or later");
- }
- if (!MacOSXPbufferGLContext.this.create(true, capabilities.getPbufferFloatingPointBuffers())) {
- throw new GLException("Error creating context for pbuffer");
- }
- // Must now associate the pbuffer with our newly-created context
- CGL.setContextPBuffer(nsContext, drawable.getPbuffer());
- return nsContext;
- }
-
- public boolean destroy(long ctx) {
- return CGL.deleteContext(ctx);
- }
-
- public boolean makeCurrent(long ctx) {
- return CGL.makeCurrentContext(ctx);
- }
-
- public boolean release(long ctx) {
- return CGL.clearCurrentContext(ctx);
- }
-
- public void setSwapInterval(long ctx, int interval) {
- CGL.setSwapInterval(ctx, interval);
- }
- }
-
- class CGLImpl implements Impl {
- public long create() {
- // Find and configure share context
- MacOSXGLContext other = (MacOSXGLContext) GLContextShareSet.getShareContext(MacOSXPbufferGLContext.this);
- long share = 0;
- if (other != null) {
- // Reconfigure pbuffer-based GLContexts
- if (other instanceof MacOSXPbufferGLContext) {
- MacOSXPbufferGLContext ctx = (MacOSXPbufferGLContext) other;
- ctx.setOpenGLMode(MacOSXGLDrawable.CGL_MODE);
- } else {
- if (other.getOpenGLMode() != MacOSXGLDrawable.CGL_MODE) {
- throw new GLException("Can't share between NSOpenGLContexts and CGLContextObjs");
- }
- }
- share = other.getNSContext();
- // Note we don't check for a 0 return value, since switching
- // the context's mode causes it to be destroyed and not
- // re-initialized until the next makeCurrent
- }
-
- // Set up pixel format attributes
- int[] attrs = new int[256];
- int i = 0;
- attrs[i++] = CGL.kCGLPFAPBuffer;
- GLCapabilities capabilities = drawable.getCapabilities();
- if (capabilities.getPbufferFloatingPointBuffers())
- attrs[i++] = CGL.kCGLPFAColorFloat;
- if (capabilities.getDoubleBuffered())
- attrs[i++] = CGL.kCGLPFADoubleBuffer;
- if (capabilities.getStereo())
- attrs[i++] = CGL.kCGLPFAStereo;
- attrs[i++] = CGL.kCGLPFAColorSize;
- attrs[i++] = (capabilities.getRedBits() +
- capabilities.getGreenBits() +
- capabilities.getBlueBits());
- attrs[i++] = CGL.kCGLPFAAlphaSize;
- attrs[i++] = capabilities.getAlphaBits();
- attrs[i++] = CGL.kCGLPFADepthSize;
- attrs[i++] = capabilities.getDepthBits();
- // FIXME: should validate stencil size as is done in MacOSXWindowSystemInterface.m
- attrs[i++] = CGL.kCGLPFAStencilSize;
- attrs[i++] = capabilities.getStencilBits();
- attrs[i++] = CGL.kCGLPFAAccumSize;
- attrs[i++] = (capabilities.getAccumRedBits() +
- capabilities.getAccumGreenBits() +
- capabilities.getAccumBlueBits() +
- capabilities.getAccumAlphaBits());
- if (capabilities.getSampleBuffers()) {
- attrs[i++] = CGL.kCGLPFASampleBuffers;
- attrs[i++] = 1;
- attrs[i++] = CGL.kCGLPFASamples;
- attrs[i++] = capabilities.getNumSamples();
- }
-
- // Use attribute array to select pixel format
- long[] fmt = new long[1];
- long[] numScreens = new long[1];
- int res = CGL.CGLChoosePixelFormat(attrs, 0, fmt, 0, numScreens, 0);
- if (res != CGL.kCGLNoError) {
- throw new GLException("Error code " + res + " while choosing pixel format");
- }
-
- // Create new context
- long[] ctx = new long[1];
- if (DEBUG) {
- System.err.println("Share context for CGL-based pbuffer context is " + toHexString(share));
- }
- res = CGL.CGLCreateContext(fmt[0], share, ctx, 0);
- CGL.CGLDestroyPixelFormat(fmt[0]);
- if (res != CGL.kCGLNoError) {
- throw new GLException("Error code " + res + " while creating context");
- }
- // Attach newly-created context to the pbuffer
- res = CGL.CGLSetPBuffer(ctx[0], drawable.getPbuffer(), 0, 0, 0);
- if (res != CGL.kCGLNoError) {
- throw new GLException("Error code " + res + " while attaching context to pbuffer");
- }
- return ctx[0];
- }
-
- public boolean destroy(long ctx) {
- return (CGL.CGLDestroyContext(ctx) == CGL.kCGLNoError);
- }
-
- public boolean makeCurrent(long ctx) {
- return CGL.CGLSetCurrentContext(ctx) == CGL.kCGLNoError;
- }
-
- public boolean release(long ctx) {
- return (CGL.CGLSetCurrentContext(0) == CGL.kCGLNoError);
- }
-
- public void setSwapInterval(long ctx, int interval) {
- // For now not supported (not really relevant for off-screen contexts anyway)
- }
- }
-}
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