Merge branch 'origin'

[mesa.git] / src / mesa / drivers / x11 / fakeglx.c

diff --git a/src/mesa/drivers/x11/fakeglx.c b/src/mesa/drivers/x11/fakeglx.c
index 259a2950425c7608a25dcfac5bab1e14fa520f9d..eecd52aa32b079fc82733abe2e18312263d7ef29 100644 (file)
--- a/src/mesa/drivers/x11/fakeglx.c
+++ b/src/mesa/drivers/x11/fakeglx.c
@@ -1,6 +1,6 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5
+ * Version:  6.5.2
  *
  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
  *
@@ -80,7 +80,7 @@
    "GLX_ARB_get_proc_address " \
    "GLX_EXT_visual_info " \
    "GLX_EXT_visual_rating " \
-   "GLX_SGI_video_sync " \
+   /*"GLX_SGI_video_sync "*/ \
    "GLX_SGIX_fbconfig " \
    "GLX_SGIX_pbuffer "
 
@@ -915,6 +915,81 @@ choose_x_overlay_visual( Display *dpy, int scr, GLboolean rgbFlag,
 }
 
 
+/**********************************************************************/
+/***             Display-related functions                          ***/
+/**********************************************************************/
+
+
+/**
+ * Free all XMesaVisuals which are associated with the given display.
+ */
+static void
+destroy_visuals_on_display(Display *dpy)
+{
+   int i;
+   for (i = 0; i < NumVisuals; i++) {
+      if (VisualTable[i]->display == dpy) {
+         /* remove this visual */
+         int j;
+         free(VisualTable[i]);
+         for (j = i; j < NumVisuals - 1; j++)
+            VisualTable[j] = VisualTable[j + 1];
+         NumVisuals--;
+      }
+   }
+}
+
+
+/**
+ * Called from XCloseDisplay() to let us free our display-related data.
+ */
+static int
+close_display_callback(Display *dpy, XExtCodes *codes)
+{
+   destroy_visuals_on_display(dpy);
+   xmesa_destroy_buffers_on_display(dpy);
+   return 0;
+}
+
+
+/**
+ * Look for the named extension on given display and return a pointer
+ * to the _XExtension data, or NULL if extension not found.
+ */
+static _XExtension *
+lookup_extension(Display *dpy, const char *extName)
+{
+   _XExtension *ext;
+   for (ext = dpy->ext_procs; ext; ext = ext->next) {
+      if (ext->name && strcmp(ext->name, extName) == 0) {
+         return ext;
+      }
+   }
+   return NULL;
+}
+
+
+/**
+ * Whenever we're given a new Display pointer, call this function to
+ * register our close_display_callback function.
+ */
+static void
+register_with_display(Display *dpy)
+{
+   const char *extName = "MesaGLX";
+   _XExtension *ext;
+
+   ext = lookup_extension(dpy, extName);
+   if (!ext) {
+      XExtCodes *c = XAddExtension(dpy);
+      ext = dpy->ext_procs;  /* new extension is at head of list */
+      assert(c->extension == ext->codes.extension);
+      ext->name = _mesa_strdup(extName);
+      ext->close_display = close_display_callback;
+   }
+}
+
+
 /**********************************************************************/
 /***                  Begin Fake GLX API Functions                  ***/
 /**********************************************************************/
@@ -1264,7 +1339,12 @@ choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig )
 static XVisualInfo *
 Fake_glXChooseVisual( Display *dpy, int screen, int *list )
 {
-   XMesaVisual xmvis = choose_visual(dpy, screen, list, GL_FALSE);
+   XMesaVisual xmvis;
+
+   /* register ourselves as an extension on this display */
+   register_with_display(dpy);
+
+   xmvis = choose_visual(dpy, screen, list, GL_FALSE);
    if (xmvis) {
 #if 0
       return xmvis->vishandle;
@@ -1298,7 +1378,9 @@ Fake_glXCreateContext( Display *dpy, XVisualInfo *visinfo,
       return 0;
 
    /* deallocate unused windows/buffers */
+#if 0
    XMesaGarbageCollect();
+#endif
 
    xmvis = find_glx_visual( dpy, visinfo );
    if (!xmvis) {
@@ -1306,7 +1388,7 @@ Fake_glXCreateContext( Display *dpy, XVisualInfo *visinfo,
       xmvis = create_glx_visual( dpy, visinfo );
       if (!xmvis) {
          /* unusable visual */
-         FREE(glxCtx);
+         _mesa_free(glxCtx);
          return NULL;
       }
    }
@@ -1314,7 +1396,7 @@ Fake_glXCreateContext( Display *dpy, XVisualInfo *visinfo,
    glxCtx->xmesaContext = XMesaCreateContext(xmvis,
                                    shareCtx ? shareCtx->xmesaContext : NULL);
    if (!glxCtx->xmesaContext) {
-      FREE(glxCtx);
+      _mesa_free(glxCtx);
       return NULL;
    }
 
@@ -1535,6 +1617,7 @@ Fake_glXDestroyContext( Display *dpy, GLXContext ctx )
    MakeCurrent_PrevReadBuffer = 0;
    XMesaDestroyContext( glxCtx->xmesaContext );
    XMesaGarbageCollect();
+   _mesa_free(glxCtx);
 }
 
 
@@ -2195,7 +2278,7 @@ Fake_glXCreateNewContext( Display *dpy, GLXFBConfig config,
    glxCtx->xmesaContext = XMesaCreateContext(xmvis,
                                    shareCtx ? shareCtx->xmesaContext : NULL);
    if (!glxCtx->xmesaContext) {
-      FREE(glxCtx);
+      _mesa_free(glxCtx);
       return NULL;
    }
 
@@ -2274,19 +2357,26 @@ Fake_glXSwapIntervalSGI(int interval)
 
 /*** GLX_SGI_video_sync ***/
 
+static unsigned int FrameCounter = 0;
+
 static int
 Fake_glXGetVideoSyncSGI(unsigned int *count)
 {
-   (void) count;
+   /* this is a bogus implementation */
+   *count = FrameCounter++;
    return 0;
 }
 
 static int
 Fake_glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
 {
-   (void) divisor;
-   (void) remainder;
-   (void) count;
+   if (divisor <= 0 || remainder < 0)
+      return GLX_BAD_VALUE;
+   /* this is a bogus implementation */
+   FrameCounter++;
+   while (FrameCounter % divisor != remainder)
+      FrameCounter++;
+   *count = FrameCounter;
    return 0;
 }
 
@@ -2411,7 +2501,7 @@ Fake_glXCreateContextWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, int re
    glxCtx->xmesaContext = XMesaCreateContext(xmvis,
                                    shareCtx ? shareCtx->xmesaContext : NULL);
    if (!glxCtx->xmesaContext) {
-      FREE(glxCtx);
+      _mesa_free(glxCtx);
       return NULL;
    }