From ad503c41557606d15b0420c824369456f6d20a8f Mon Sep 17 00:00:00 2001
From: Jeremy Huddleston <jeremyhu@apple.com>
Date: Thu, 1 Apr 2010 11:01:31 -0700
Subject: apple: Initial import of libGL for OSX from AppleSGLX svn repository.

Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
---
 src/glx/apple/glxreply.c | 134 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 src/glx/apple/glxreply.c

(limited to 'src/glx/apple/glxreply.c')

diff --git a/src/glx/apple/glxreply.c b/src/glx/apple/glxreply.c
new file mode 100644
index 0000000000..7280bc9715
--- /dev/null
+++ b/src/glx/apple/glxreply.c
@@ -0,0 +1,134 @@
+/*
+ * (C) Copyright Apple Inc. 2008
+ * (C) Copyright IBM Corporation 2004, 2005
+ * All Rights Reserved.
+ * 
+ * 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, sub license,
+ * 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 NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * IBM,
+ * AND/OR THEIR SUPPLIERS 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 <GL/gl.h>
+#include "glxclient.h"
+#include <GL/glxproto.h>
+
+CARD32
+__glXReadReply(Display * dpy, size_t size, void *dest,
+               GLboolean reply_is_always_array)
+{
+   xGLXSingleReply reply;
+
+   (void) _XReply(dpy, (xReply *) & reply, 0, False);
+   if (size != 0) {
+      if ((reply.length > 0) || reply_is_always_array) {
+         const GLint bytes = (reply_is_always_array)
+            ? (4 * reply.length) : (reply.size * size);
+         const GLint extra = 4 - (bytes & 3);
+
+         _XRead(dpy, dest, bytes);
+         if (extra < 4) {
+            _XEatData(dpy, extra);
+         }
+      }
+      else {
+         (void) memcpy(dest, &(reply.pad3), size);
+      }
+   }
+
+   return reply.retval;
+}
+
+void
+__glXReadPixelReply(Display * dpy, __GLXcontext * gc, unsigned max_dim,
+                    GLint width, GLint height, GLint depth, GLenum format,
+                    GLenum type, void *dest, GLboolean dimensions_in_reply)
+{
+   xGLXSingleReply reply;
+   GLint size;
+
+   (void) _XReply(dpy, (xReply *) & reply, 0, False);
+
+   if (dimensions_in_reply) {
+      width = reply.pad3;
+      height = reply.pad4;
+      depth = reply.pad5;
+
+      if ((height == 0) || (max_dim < 2)) {
+         height = 1;
+      }
+      if ((depth == 0) || (max_dim < 3)) {
+         depth = 1;
+      }
+   }
+
+   size = reply.length * 4;
+   if (size != 0) {
+      void *buf = Xmalloc(size);
+
+      if (buf == NULL) {
+         _XEatData(dpy, size);
+         __glXSetError(gc, GL_OUT_OF_MEMORY);
+      }
+      else {
+         const GLint extra = 4 - (size & 3);
+
+         _XRead(dpy, buf, size);
+         if (extra < 4) {
+            _XEatData(dpy, extra);
+         }
+
+         __glEmptyImage(gc, 3, width, height, depth, format, type, buf, dest);
+         Xfree(buf);
+      }
+   }
+}
+
+#if 0
+GLubyte *
+__glXSetupSingleRequest(__GLXcontext * gc, GLint sop, GLint cmdlen)
+{
+   xGLXSingleReq *req;
+   Display *const dpy = gc->currentDpy;
+
+   (void) __glXFlushRenderBuffer(gc, gc->pc);
+   LockDisplay(dpy);
+   GetReqExtra(GLXSingle, cmdlen, req);
+   req->reqType = gc->majorOpcode;
+   req->contextTag = gc->currentContextTag;
+   req->glxCode = sop;
+   return (GLubyte *) (req) + sz_xGLXSingleReq;
+}
+#endif
+
+GLubyte *
+__glXSetupVendorRequest(__GLXcontext * gc, GLint code, GLint vop,
+                        GLint cmdlen)
+{
+   xGLXVendorPrivateReq *req;
+   Display *const dpy = gc->currentDpy;
+
+   (void) __glXFlushRenderBuffer(gc, gc->pc);
+   LockDisplay(dpy);
+   GetReqExtra(GLXVendorPrivate, cmdlen, req);
+   req->reqType = gc->majorOpcode;
+   req->glxCode = code;
+   req->vendorCode = vop;
+   req->contextTag = gc->currentContextTag;
+   return (GLubyte *) (req) + sz_xGLXVendorPrivateReq;
+}
-- 
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