From 6baa2c8d022e5dd1e305e7da2925c1e6f9370f35 Mon Sep 17 00:00:00 2001
From: Chia-I Wu <olvaffe@gmail.com>
Date: Thu, 28 Jan 2010 16:57:49 +0800
Subject: egl: Migrate drivers to use _eglBindContext.

_eglMakeCurrent is a big hammer that is not easy to use.  Migrate
drivers to use _eglBindContext and un-export _eglMakeCurrent.
---
 src/egl/drivers/glx/egl_glx.c   | 20 ++++++++++++++++----
 src/egl/drivers/xdri/egl_xdri.c | 21 ++++++++++++---------
 2 files changed, 28 insertions(+), 13 deletions(-)

(limited to 'src/egl/drivers')

diff --git a/src/egl/drivers/glx/egl_glx.c b/src/egl/drivers/glx/egl_glx.c
index 5efb72e875..1c38db6491 100644
--- a/src/egl/drivers/glx/egl_glx.c
+++ b/src/egl/drivers/glx/egl_glx.c
@@ -660,8 +660,10 @@ GLX_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
    struct GLX_egl_context *GLX_ctx = GLX_egl_context(ctx);
    GLXDrawable ddraw, rdraw;
    GLXContext cctx;
+   EGLBoolean ret = EGL_FALSE;
 
-   if (!_eglMakeCurrent(drv, disp, dsurf, rsurf, ctx))
+   /* bind the new context and return the "orphaned" one */
+   if (!_eglBindContext(&ctx, &dsurf, &rsurf))
       return EGL_FALSE;
 
    ddraw = (GLX_dsurf) ? GLX_dsurf->glx_drawable : None;
@@ -669,11 +671,21 @@ GLX_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
    cctx = (GLX_ctx) ? GLX_ctx->context : NULL;
 
    if (GLX_dpy->have_make_current_read)
-      return glXMakeContextCurrent(GLX_dpy->dpy, ddraw, rdraw, cctx);
+      ret = glXMakeContextCurrent(GLX_dpy->dpy, ddraw, rdraw, cctx);
    else if (ddraw == rdraw)
-      return glXMakeCurrent(GLX_dpy->dpy, ddraw, cctx);
+      ret = glXMakeCurrent(GLX_dpy->dpy, ddraw, cctx);
 
-   return EGL_FALSE;
+   if (ret) {
+      if (dsurf && !_eglIsSurfaceLinked(dsurf))
+         destroy_surface(disp, dsurf);
+      if (rsurf && rsurf != dsurf && !_eglIsSurfaceLinked(rsurf))
+         destroy_surface(disp, rsurf);
+   }
+   else {
+      _eglBindContext(&ctx, &dsurf, &rsurf);
+   }
+
+   return ret;
 }
 
 /** Get size of given window */
diff --git a/src/egl/drivers/xdri/egl_xdri.c b/src/egl/drivers/xdri/egl_xdri.c
index 26fe95b043..2ca9ea8a5b 100644
--- a/src/egl/drivers/xdri/egl_xdri.c
+++ b/src/egl/drivers/xdri/egl_xdri.c
@@ -475,17 +475,13 @@ xdri_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *d,
    struct xdri_egl_context *xdri_ctx = lookup_context(context);
    struct xdri_egl_surface *draw = lookup_surface(d);
    struct xdri_egl_surface *read = lookup_surface(r);
-   _EGLContext *old = _eglGetCurrentContext();
 
-   /* an unlinked context will be invalid after context switch */
-   if (!_eglIsContextLinked(old))
-      old = NULL;
-
-   if (!_eglMakeCurrent(drv, dpy, d, r, context))
+   /* bind the new context and return the "orphaned" one */
+   if (!_eglBindContext(&context, &d, &r))
       return EGL_FALSE;
 
    /* flush before context switch */
-   if (old && old != context && xdri_driver->FlushCurrentContext)
+   if (context && xdri_driver->FlushCurrentContext)
       xdri_driver->FlushCurrentContext();
 
    /* the symbol is defined in libGL.so */
@@ -498,11 +494,18 @@ xdri_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *d,
          return EGL_FALSE;
       }
    }
-   else if (old) {
-      xdri_ctx = lookup_context(old);
+   else if (context) {
+      xdri_ctx = lookup_context(context);
       xdri_ctx->driContext->unbindContext(xdri_ctx->driContext);
    }
 
+   if (context && !_eglIsContextLinked(context))
+      destroy_context(dpy, context);
+   if (d && !_eglIsSurfaceLinked(d))
+      destroy_surface(dpy, d);
+   if (r && r != d && !_eglIsSurfaceLinked(r))
+      destroy_surface(dpy, r);
+
    return EGL_TRUE;
 }
 
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