egl: Make surfaces and contexts resources.

Turn _EGLSurface and _EGLContext into _EGLResource so that they can be
managed uniformly.

8 files changed, 78 insertions, 220 deletions

diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
index 6e8f444d7fa..26ed45c6fe5 100644
--- a/src/egl/main/eglapi.c
+++ b/src/egl/main/eglapi.c
@@ -526,7 +526,7 @@ eglSwapInterval(EGLDisplay dpy, EGLint interval)
    _EGLSurface *surf;
    _EGL_DECLARE_DD(dpy);
 
-   if (!ctx || !_eglIsContextLinked(ctx) || ctx->Display != disp)
+   if (!ctx || !_eglIsContextLinked(ctx) || ctx->Resource.Display != disp)
       return _eglError(EGL_BAD_CONTEXT, __FUNCTION__);
 
    surf = ctx->DrawSurface;
@@ -573,7 +573,7 @@ eglWaitClient(void)
       return _eglError(EGL_BAD_CURRENT_SURFACE, __FUNCTION__);
 
    /* a valid current context implies an initialized current display */
-   disp = ctx->Display;
+   disp = ctx->Resource.Display;
    drv = disp->Driver;
    assert(drv);
 
@@ -617,7 +617,7 @@ eglWaitNative(EGLint engine)
       return _eglError(EGL_BAD_CURRENT_SURFACE, __FUNCTION__);
 
    /* a valid current context implies an initialized current display */
-   disp = ctx->Display;
+   disp = ctx->Resource.Display;
    drv = disp->Driver;
    assert(drv);
 
diff --git a/src/egl/main/eglcontext.c b/src/egl/main/eglcontext.c
index 41960f54262..ee4b1b59f5b 100644
--- a/src/egl/main/eglcontext.c
+++ b/src/egl/main/eglcontext.c
@@ -251,72 +251,3 @@ _eglCopyContextMESA(_EGLDriver *drv, EGLDisplay dpy, EGLContext source,
     */
    return EGL_FALSE;
 }
-
-
-/**
- * Link a context to a display and return the handle of the link.
- * The handle can be passed to client directly.
- */
-EGLContext
-_eglLinkContext(_EGLContext *ctx, _EGLDisplay *dpy)
-{
-   ctx->Display = dpy;
-   ctx->Next = dpy->ContextList;
-   dpy->ContextList = ctx;
-   return (EGLContext) ctx;
-}
-
-
-/**
- * Unlink a linked context from its display.
- * Accessing an unlinked context should generate EGL_BAD_CONTEXT error.
- */
-void
-_eglUnlinkContext(_EGLContext *ctx)
-{
-   _EGLContext *prev;
-
-   prev = ctx->Display->ContextList;
-   if (prev != ctx) {
-      while (prev) {
-         if (prev->Next == ctx)
-            break;
-         prev = prev->Next;
-      }
-      assert(prev);
-      prev->Next = ctx->Next;
-   }
-   else {
-      ctx->Display->ContextList = ctx->Next;
-   }
-
-   ctx->Next = NULL;
-   ctx->Display = NULL;
-}
-
-
-#ifndef _EGL_SKIP_HANDLE_CHECK
-
-
-/**
- * Return EGL_TRUE if the given handle is a valid handle to a context.
- */
-EGLBoolean
-_eglCheckContextHandle(EGLContext ctx, _EGLDisplay *dpy)
-{
-   _EGLContext *cur = NULL;
-
-   if (dpy)
-      cur = dpy->ContextList;
-   while (cur) {
-      if (cur == (_EGLContext *) ctx) {
-         assert(cur->Display == dpy);
-         break;
-      }
-      cur = cur->Next;
-   }
-   return (cur != NULL);
-}
-
-
-#endif /* !_EGL_SKIP_HANDLE_CHECK */
diff --git a/src/egl/main/eglcontext.h b/src/egl/main/eglcontext.h
index 0dcec92488c..b81dc1ed820 100644
--- a/src/egl/main/eglcontext.h
+++ b/src/egl/main/eglcontext.h
@@ -4,6 +4,7 @@
 
 
 #include "egltypedefs.h"
+#include "egldisplay.h"
 
 
 /**
@@ -11,9 +12,8 @@
  */
 struct _egl_context
 {
-   /* Managed by EGLDisplay for linking */
-   _EGLDisplay *Display;
-   _EGLContext *Next;
+   /* A context is a display resource */
+   _EGLResource Resource;
 
    /* The bound status of the context */
    _EGLThreadInfo *Binding;
@@ -65,33 +65,27 @@ _eglIsContextBound(_EGLContext *ctx)
 }
 
 
-extern EGLContext
-_eglLinkContext(_EGLContext *ctx, _EGLDisplay *dpy);
-
-
-extern void
-_eglUnlinkContext(_EGLContext *ctx);
-
-
-#ifndef _EGL_SKIP_HANDLE_CHECK
-
-
-extern EGLBoolean
-_eglCheckContextHandle(EGLContext ctx, _EGLDisplay *dpy);
-
-
-#else /* !_EGL_SKIP_HANDLE_CHECK */
-
-
-static INLINE EGLBoolean
-_eglCheckContextHandle(EGLContext ctx, _EGLDisplay *dpy)
+/**
+ * Link a context to a display and return the handle of the link.
+ * The handle can be passed to client directly.
+ */
+static INLINE EGLContext
+_eglLinkContext(_EGLContext *ctx, _EGLDisplay *dpy)
 {
-   _EGLContext *c = (_EGLContext *) ctx;
-   return (dpy && c && c->Display == dpy);
+   _eglLinkResource(&ctx->Resource, _EGL_RESOURCE_CONTEXT, dpy);
+   return (EGLContext) ctx;
 }
 
 
-#endif /* _EGL_SKIP_HANDLE_CHECK */
+/**
+ * Unlink a linked context from its display.
+ * Accessing an unlinked context should generate EGL_BAD_CONTEXT error.
+ */
+static INLINE void
+_eglUnlinkContext(_EGLContext *ctx)
+{
+   _eglUnlinkResource(&ctx->Resource, _EGL_RESOURCE_CONTEXT);
+}
 
 
 /**
@@ -101,8 +95,9 @@ _eglCheckContextHandle(EGLContext ctx, _EGLDisplay *dpy)
 static INLINE _EGLContext *
 _eglLookupContext(EGLContext context, _EGLDisplay *dpy)
 {
+   _EGLResource *res = (_EGLResource *) context;
    _EGLContext *ctx = (_EGLContext *) context;
-   if (!_eglCheckContextHandle(context, dpy))
+   if (!res || !dpy || !_eglCheckResource(res, _EGL_RESOURCE_CONTEXT, dpy))
       ctx = NULL;
    return ctx;
 }
@@ -114,7 +109,9 @@ _eglLookupContext(EGLContext context, _EGLDisplay *dpy)
 static INLINE EGLContext
 _eglGetContextHandle(_EGLContext *ctx)
 {
-   return (EGLContext) ((ctx && ctx->Display) ? ctx : EGL_NO_CONTEXT);
+   _EGLResource *res = (_EGLResource *) ctx;
+   return (res && _eglIsResourceLinked(res)) ?
+      (EGLContext) ctx : EGL_NO_CONTEXT;
 }
 
 
@@ -124,7 +121,8 @@ _eglGetContextHandle(_EGLContext *ctx)
 static INLINE EGLBoolean
 _eglIsContextLinked(_EGLContext *ctx)
 {
-   return (EGLBoolean) (_eglGetContextHandle(ctx) != EGL_NO_CONTEXT);
+   _EGLResource *res = (_EGLResource *) ctx;
+   return (res && _eglIsResourceLinked(res));
 }
 
 
diff --git a/src/egl/main/eglcurrent.c b/src/egl/main/eglcurrent.c
index df506151b58..f91631240fd 100644
--- a/src/egl/main/eglcurrent.c
+++ b/src/egl/main/eglcurrent.c
@@ -246,7 +246,7 @@ _eglGetCurrentDisplay(void)
    _EGLThreadInfo *t = _eglGetCurrentThread();
    _EGLContext *ctx = t->CurrentContexts[t->CurrentAPIIndex];
    if (ctx)
-      return ctx->Display;
+      return ctx->Resource.Display;
    else
       return NULL;
 }
diff --git a/src/egl/main/egldisplay.c b/src/egl/main/egldisplay.c
index ef144f7f07a..c978adb47f5 100644
--- a/src/egl/main/egldisplay.c
+++ b/src/egl/main/egldisplay.c
@@ -26,12 +26,18 @@ _eglFiniDisplay(void)
    /* atexit function is called with global mutex locked */
    dpyList = _eglGlobal.DisplayList;
    while (dpyList) {
+      EGLint i;
+
       /* pop list head */
       dpy = dpyList;
       dpyList = dpyList->Next;
 
-      if (dpy->ContextList || dpy->SurfaceList)
-         _eglLog(_EGL_DEBUG, "Display %p is destroyed with resources", dpy);
+      for (i = 0; i < _EGL_NUM_RESOURCES; i++) {
+         if (dpy->ResourceLists[i]) {
+            _eglLog(_EGL_DEBUG, "Display %p is destroyed with resources", dpy);
+            break;
+         }
+      }
 
       free(dpy);
    }
@@ -135,29 +141,27 @@ _eglFindDisplay(NativeDisplayType nativeDisplay)
 void
 _eglReleaseDisplayResources(_EGLDriver *drv, _EGLDisplay *display)
 {
-   _EGLContext *contexts;
-   _EGLSurface *surfaces;
-
-   contexts = display->ContextList;
-   surfaces = display->SurfaceList;
+   _EGLResource *list;
 
-   while (contexts) {
-      _EGLContext *ctx = contexts;
-      contexts = contexts->Next;
+   list = display->ResourceLists[_EGL_RESOURCE_CONTEXT];
+   while (list) {
+      _EGLContext *ctx = (_EGLContext *) list;
+      list = list->Next;
 
       _eglUnlinkContext(ctx);
       drv->API.DestroyContext(drv, display, ctx);
    }
-   assert(!display->ContextList);
+   assert(!display->ResourceLists[_EGL_RESOURCE_CONTEXT]);
 
-   while (surfaces) {
-      _EGLSurface *surf = surfaces;
-      surfaces = surfaces->Next;
+   list = display->ResourceLists[_EGL_RESOURCE_SURFACE];
+   while (list) {
+      _EGLSurface *surf = (_EGLSurface *) list;
+      list = list->Next;
 
       _eglUnlinkSurface(surf);
       drv->API.DestroySurface(drv, display, surf);
    }
-   assert(!display->SurfaceList);
+   assert(!display->ResourceLists[_EGL_RESOURCE_SURFACE]);
 }
 
 
diff --git a/src/egl/main/egldisplay.h b/src/egl/main/egldisplay.h
index c1069d7c59a..60ed7bcc039 100644
--- a/src/egl/main/egldisplay.h
+++ b/src/egl/main/egldisplay.h
@@ -63,10 +63,7 @@ struct _egl_display
    EGLint NumConfigs;
    _EGLConfig **Configs;  /* array [NumConfigs] of ptr to _EGLConfig */
 
-   /* lists of linked contexts and surface */
-   _EGLContext *ContextList;
-   _EGLSurface *SurfaceList;
-
+   /* lists of resources */
    _EGLResource *ResourceLists[_EGL_NUM_RESOURCES];
 };
 
diff --git a/src/egl/main/eglsurface.c b/src/egl/main/eglsurface.c
index 5e9a3417a65..940a1b760cf 100644
--- a/src/egl/main/eglsurface.c
+++ b/src/egl/main/eglsurface.c
@@ -511,73 +511,3 @@ _eglCreatePbufferFromClientBuffer(_EGLDriver *drv, _EGLDisplay *dpy,
 }
 
 #endif /* EGL_VERSION_1_2 */
-
-
-/**
- * Link a surface to a display and return the handle of the link.
- * The handle can be passed to client directly.
- */
-EGLSurface
-_eglLinkSurface(_EGLSurface *surf, _EGLDisplay *dpy)
-{
-   surf->Display = dpy;
-   surf->Next = dpy->SurfaceList;
-   dpy->SurfaceList = surf;
-   return (EGLSurface) surf;
-}
-
-
-/**
- * Unlink a linked surface from its display.
- * Accessing an unlinked surface should generate EGL_BAD_SURFACE error.
- */
-void
-_eglUnlinkSurface(_EGLSurface *surf)
-{
-   _EGLSurface *prev;
-
-   prev = surf->Display->SurfaceList;
-   if (prev != surf) {
-      while (prev) {
-         if (prev->Next == surf)
-            break;
-         prev = prev->Next;
-      }
-      assert(prev);
-      prev->Next = surf->Next;
-   }
-   else {
-      prev = NULL;
-      surf->Display->SurfaceList = surf->Next;
-   }
-
-   surf->Next = NULL;
-   surf->Display = NULL;
-}
-
-
-#ifndef _EGL_SKIP_HANDLE_CHECK
-
-
-/**
- * Return EGL_TRUE if the given handle is a valid handle to a surface.
- */
-EGLBoolean
-_eglCheckSurfaceHandle(EGLSurface surf, _EGLDisplay *dpy)
-{
-   _EGLSurface *cur = NULL;
-
-   if (dpy)
-      cur = dpy->SurfaceList;
-   while (cur) {
-      if (cur == (_EGLSurface *) surf) {
-         assert(cur->Display == dpy);
-         break;
-      }
-      cur = cur->Next;
-   }
-   return (cur != NULL);
-}
-
-
-#endif /* !_EGL_SKIP_HANDLE_CHECK */
diff --git a/src/egl/main/eglsurface.h b/src/egl/main/eglsurface.h
index b1163293fe6..da07133c2c1 100644
--- a/src/egl/main/eglsurface.h
+++ b/src/egl/main/eglsurface.h
@@ -3,6 +3,7 @@
 
 
 #include "egltypedefs.h"
+#include "egldisplay.h"
 
 
 /**
@@ -10,9 +11,8 @@
  */
 struct _egl_surface
 {
-   /* Managed by EGLDisplay for linking */
-   _EGLDisplay *Display;
-   _EGLSurface *Next;
+   /* A surface is a display resource */
+   _EGLResource Resource;
 
    /* The bound status of the surface */
    _EGLContext *Binding;
@@ -111,33 +111,27 @@ _eglIsSurfaceBound(_EGLSurface *surf)
 }
 
 
-extern EGLSurface
-_eglLinkSurface(_EGLSurface *surf, _EGLDisplay *dpy);
-
-
-extern void
-_eglUnlinkSurface(_EGLSurface *surf);
-
-
-#ifndef _EGL_SKIP_HANDLE_CHECK
-
-
-extern EGLBoolean
-_eglCheckSurfaceHandle(EGLSurface surf, _EGLDisplay *dpy);
-
-
-#else /* !_EGL_SKIP_HANDLE_CHECK */
-
-
-static INLINE EGLBoolean
-_eglCheckSurfaceHandle(EGLSurface surf, _EGLDisplay *dpy)
+/**
+ * Link a surface to a display and return the handle of the link.
+ * The handle can be passed to client directly.
+ */
+static INLINE EGLSurface
+_eglLinkSurface(_EGLSurface *surf, _EGLDisplay *dpy)
 {
-   _EGLSurface *s = (_EGLSurface *) surf;
-   return (dpy && s && s->Display == dpy);
+   _eglLinkResource(&surf->Resource, _EGL_RESOURCE_SURFACE, dpy);
+   return (EGLSurface) surf;
 }
 
 
-#endif /* _EGL_SKIP_HANDLE_CHECK */
+/**
+ * Unlink a linked surface from its display.
+ * Accessing an unlinked surface should generate EGL_BAD_SURFACE error.
+ */
+static INLINE void
+_eglUnlinkSurface(_EGLSurface *surf)
+{
+   _eglUnlinkResource(&surf->Resource, _EGL_RESOURCE_SURFACE);
+}
 
 
 /**
@@ -147,8 +141,9 @@ _eglCheckSurfaceHandle(EGLSurface surf, _EGLDisplay *dpy)
 static INLINE _EGLSurface *
 _eglLookupSurface(EGLSurface surface, _EGLDisplay *dpy)
 {
+   _EGLResource *res = (_EGLResource *) surface;
    _EGLSurface *surf = (_EGLSurface *) surface;
-   if (!_eglCheckSurfaceHandle(surf, dpy))
+   if (!res || !dpy || !_eglCheckResource(res, _EGL_RESOURCE_SURFACE, dpy))
       surf = NULL;
    return surf;
 }
@@ -160,7 +155,9 @@ _eglLookupSurface(EGLSurface surface, _EGLDisplay *dpy)
 static INLINE EGLSurface
 _eglGetSurfaceHandle(_EGLSurface *surf)
 {
-   return (EGLSurface) ((surf && surf->Display) ? surf : EGL_NO_SURFACE);
+   _EGLResource *res = (_EGLResource *) surf;
+   return (res && _eglIsResourceLinked(res)) ?
+      (EGLSurface) surf : EGL_NO_SURFACE;
 }
 
 
@@ -170,7 +167,8 @@ _eglGetSurfaceHandle(_EGLSurface *surf)
 static INLINE EGLBoolean
 _eglIsSurfaceLinked(_EGLSurface *surf)
 {
-   return (EGLBoolean) (_eglGetSurfaceHandle(surf) != EGL_NO_SURFACE);
+   _EGLResource *res = (_EGLResource *) surf;
+   return (res && _eglIsResourceLinked(res));
 }