apple: Initial import of libGL for OSX from AppleSGLX svn repository.

Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>

1 files changed, 48 insertions, 5 deletions

diff --git a/src/glx/glxcurrent.c b/src/glx/glxcurrent.c
index c28360b..115fab4 100644
--- a/src/glx/glxcurrent.c
+++ b/src/glx/glxcurrent.c
@@ -33,9 +33,20 @@
  * Client-side GLX interface for current context management.
  */
 
+#ifdef PTHREADS
+#include <pthread.h>
+#endif
+
 #include "glxclient.h"
+#ifdef GLX_USE_APPLEGL
+#include <stdlib.h>
+
+#include "apple_glx.h"
+#include "apple_glx_context.h"
+#else
 #include "glapi.h"
 #include "indirect_init.h"
+#endif
 
 /*
 ** We setup some dummy structures here so that the API can be used
@@ -59,11 +70,12 @@ static __GLXcontext dummyContext = {
 };
 
 
+#ifndef GLX_USE_APPLEGL
 /*
 ** All indirect rendering contexts will share the same indirect dispatch table.
 */
 static __GLapi *IndirectAPI = NULL;
-
+#endif
 
 /*
  * Current context management and locking
@@ -156,10 +168,12 @@ _X_HIDDEN void
 __glXSetCurrentContextNull(void)
 {
    __glXSetCurrentContext(&dummyContext);
+#ifndef GLX_USE_APPLEGL
 #ifdef GLX_DIRECT_RENDERING
    _glapi_set_dispatch(NULL);   /* no-op functions */
    _glapi_set_context(NULL);
 #endif
+#endif
 }
 
 
@@ -186,6 +200,7 @@ glXGetCurrentDrawable(void)
 }
 
 
+#ifndef GLX_USE_APPLEGL
 /************************************************************************/
 
 /**
@@ -313,6 +328,8 @@ __glXGenerateError(Display * dpy, GLXContext gc, XID resource,
    _XError(dpy, &error);
 }
 
+#endif /* GLX_USE_APPLEGL */
+
 /**
  * Make a particular context current.
  *
@@ -322,8 +339,17 @@ static Bool
 MakeContextCurrent(Display * dpy, GLXDrawable draw,
                    GLXDrawable read, GLXContext gc)
 {
-   xGLXMakeCurrentReply reply;
    const GLXContext oldGC = __glXGetCurrentContext();
+#ifdef GLX_USE_APPLEGL
+   bool error = apple_glx_make_current_context(dpy, 
+                   (oldGC && oldGC != &dummyContext) ? oldGC->apple : NULL, 
+                   gc ? gc->apple : NULL, draw);
+   
+   apple_glx_diagnostic("%s: error %s\n", __func__, error ? "YES" : "NO");
+   if(error)
+      return GL_FALSE;
+#else
+   xGLXMakeCurrentReply reply;
    const CARD8 opcode = __glXSetupForCommand(dpy);
    const CARD8 oldOpcode = ((gc == oldGC) || (oldGC == &dummyContext))
       ? opcode : __glXSetupForCommand(oldGC->currentDpy);
@@ -419,6 +445,7 @@ MakeContextCurrent(Display * dpy, GLXDrawable draw,
    }
 #endif
 
+#endif /* GLX_USE_APPLEGL */
 
    /* Update our notion of what is current */
    __glXLock();
@@ -428,8 +455,10 @@ MakeContextCurrent(Display * dpy, GLXDrawable draw,
        * cannot be NULL, therefore if they are the same, gc is not
        * NULL and not the dummy.
        */
-      gc->currentDrawable = draw;
-      gc->currentReadable = read;
+      if(gc) {
+        gc->currentDrawable = draw;
+        gc->currentReadable = read;
+      }
    }
    else {
       if (oldGC != &dummyContext) {
@@ -439,7 +468,18 @@ MakeContextCurrent(Display * dpy, GLXDrawable draw,
          oldGC->currentReadable = None;
          oldGC->currentContextTag = 0;
          oldGC->thread_id = 0;
-
+#ifdef GLX_USE_APPLEGL
+         
+         /*
+          * At this point we should check if the context has been
+          * through glXDestroyContext, and redestroy it if so.
+          */
+         if(oldGC->do_destroy) {
+            __glXUnlock();
+            /* glXDestroyContext uses the same global lock. */
+            glXDestroyContext(dpy, oldGC);
+            __glXLock();
+#else
          if (oldGC->xid == None) {
             /* We are switching away from a context that was
              * previously destroyed, so we need to free the memory
@@ -455,6 +495,7 @@ MakeContextCurrent(Display * dpy, GLXDrawable draw,
             }
 #endif
             __glXFreeContext(oldGC);
+#endif /* GLX_USE_APPLEGL */
          }
       }
       if (gc) {
@@ -463,6 +504,7 @@ MakeContextCurrent(Display * dpy, GLXDrawable draw,
          gc->currentDpy = dpy;
          gc->currentDrawable = draw;
          gc->currentReadable = read;
+#ifndef GLX_USE_APPLEGL
          gc->thread_id = _glthread_GetID();
 
 #ifdef GLX_DIRECT_RENDERING
@@ -486,6 +528,7 @@ MakeContextCurrent(Display * dpy, GLXDrawable draw,
             gc->currentContextTag = -1;
          }
 #endif
+#endif /* GLX_USE_APPLEGL */
       }
       else {
          __glXSetCurrentContextNull();