2 * (C) Copyright Apple Inc. 2008
3 * (C) Copyright IBM Corporation 2004, 2005
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sub license,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
22 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
23 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28 #include "glxclient.h"
29 #include <GL/glxproto.h>
32 __glXReadReply(Display * dpy, size_t size, void *dest,
33 GLboolean reply_is_always_array)
35 xGLXSingleReply reply;
37 (void) _XReply(dpy, (xReply *) & reply, 0, False);
39 if ((reply.length > 0) || reply_is_always_array) {
40 const GLint bytes = (reply_is_always_array)
41 ? (4 * reply.length) : (reply.size * size);
42 const GLint extra = 4 - (bytes & 3);
44 _XRead(dpy, dest, bytes);
46 _XEatData(dpy, extra);
50 (void) memcpy(dest, &(reply.pad3), size);
58 __glXReadPixelReply(Display * dpy, struct glx_context * gc, unsigned max_dim,
59 GLint width, GLint height, GLint depth, GLenum format,
60 GLenum type, void *dest, GLboolean dimensions_in_reply)
62 xGLXSingleReply reply;
65 (void) _XReply(dpy, (xReply *) & reply, 0, False);
67 if (dimensions_in_reply) {
72 if ((height == 0) || (max_dim < 2)) {
75 if ((depth == 0) || (max_dim < 3)) {
80 size = reply.length * 4;
82 void *buf = Xmalloc(size);
86 __glXSetError(gc, GL_OUT_OF_MEMORY);
89 const GLint extra = 4 - (size & 3);
91 _XRead(dpy, buf, size);
93 _XEatData(dpy, extra);
96 __glEmptyImage(gc, 3, width, height, depth, format, type, buf, dest);
104 __glXSetupSingleRequest(struct glx_context * gc, GLint sop, GLint cmdlen)
107 Display *const dpy = gc->currentDpy;
109 (void) __glXFlushRenderBuffer(gc, gc->pc);
111 GetReqExtra(GLXSingle, cmdlen, req);
112 req->reqType = gc->majorOpcode;
113 req->contextTag = gc->currentContextTag;
115 return (GLubyte *) (req) + sz_xGLXSingleReq;
120 __glXSetupVendorRequest(struct glx_context * gc, GLint code, GLint vop,
123 xGLXVendorPrivateReq *req;
124 Display *const dpy = gc->currentDpy;
126 (void) __glXFlushRenderBuffer(gc, gc->pc);
128 GetReqExtra(GLXVendorPrivate, cmdlen, req);
129 req->reqType = gc->majorOpcode;
131 req->vendorCode = vop;
132 req->contextTag = gc->currentContextTag;
133 return (GLubyte *) (req) + sz_xGLXVendorPrivateReq;