1 files changed, 82 insertions, 0 deletions
diff --git a/xorg-server/glamor/glamor_glx.c b/xorg-server/glamor/glamor_glx.c
new file mode 100644
index 000000000..311bf758d
--- /dev/null
+++ b/xorg-server/glamor/glamor_glx.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright © 2013 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <epoxy/glx.h>
+#include "glamor_context.h"
+
+/**
+ * @file glamor_glx.c
+ *
+ * GLX context management for glamor.
+ *
+ * This has to be kept separate from the server sources because of
+ * Xlib's conflicting definition of CARD32 and similar typedefs.
+ */
+
+static void
+glamor_glx_get_context(struct glamor_context *glamor_ctx)
+{
+    GLXContext old_ctx;
+
+    if (glamor_ctx->get_count++)
+        return;
+
+    old_ctx = glXGetCurrentContext();
+    if (old_ctx == glamor_ctx->ctx)
+        return;
+
+    glXMakeCurrent(glamor_ctx->display, glamor_ctx->drawable_xid,
+                   glamor_ctx->ctx);
+}
+
+
+static void
+glamor_glx_put_context(struct glamor_context *glamor_ctx)
+{
+    if (--glamor_ctx->get_count)
+        return;
+
+    /* We actually reset the context, so that indirect GLX's EGL usage
+     * won't get confused by ours.
+     */
+    glXMakeCurrent(glamor_ctx->display, None, NULL);
+}
+
+Bool
+glamor_glx_screen_init(struct glamor_context *glamor_ctx)
+{
+    glamor_ctx->ctx = glXGetCurrentContext();
+    if (!glamor_ctx->ctx)
+        return False;
+
+    glamor_ctx->display = glXGetCurrentDisplay();
+    if (!glamor_ctx->display)
+        return False;
+
+    glamor_ctx->drawable_xid = glXGetCurrentDrawable();
+
+    glamor_ctx->get_context = glamor_glx_get_context;
+    glamor_ctx->put_context = glamor_glx_put_context;
+
+    return True;
+}