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xserver-multidpi/GL/glx/glxcmdsswap.c
Kristian Høgsberg e5956f49b2 First batch of AIGLX fixes from David Reveman. 
Add getter for Mesa provider.
Export this for Xgl.
Move resource tracking out of drawable constructor to allow wrapping.
Use corrent reply size #define.
Add this function. (DoGetDrawableAttributes): Fix array length.
2006-03-13 01:54:59 +00:00

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/* $XFree86: xc/programs/Xserver/GL/glx/glxcmdsswap.c,v 1.10 2004/01/28 18:11:50 alanh Exp $ */
/*
** License Applicability. Except to the extent portions of this file are
** made subject to an alternative license as permitted in the SGI Free
** Software License B, Version 1.1 (the "License"), the contents of this
** file are subject only to the provisions of the License. You may not use
** this file except in compliance with the License. You may obtain a copy
** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
**
** http://oss.sgi.com/projects/FreeB
**
** Note that, as provided in the License, the Software is distributed on an
** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
**
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
**
** Additional Notice Provisions: The application programming interfaces
** established by SGI in conjunction with the Original Code are The
** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
** Window System(R) (Version 1.3), released October 19, 1998. This software
** was created using the OpenGL(R) version 1.2.1 Sample Implementation
** published by SGI, but has not been independently verified as being
** compliant with the OpenGL(R) version 1.2.1 Specification.
**
*/
#define NEED_REPLIES
#define FONT_PCF
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <string.h>
#include "glxserver.h"
#include "glxutil.h"
#include <GL/glxtokens.h>
#include <unpack.h>
#include <g_disptab.h>
#include <g_disptab_EXT.h>
#include <pixmapstr.h>
#include <windowstr.h>
#include "glxext.h"
#include "GL/glx_ansic.h"
#include "glapitable.h"
#include "glapi.h"
#include "glthread.h"
#include "dispatch.h"
static int __glXSwapGetFBConfigsSGIX(__GLXclientState *cl, GLbyte *pc);
static int __glXSwapCreateContextWithConfigSGIX(__GLXclientState *cl, GLbyte *pc);
static int __glXSwapCreateGLXPixmapWithConfigSGIX(__GLXclientState *cl, GLbyte *pc);
static int __glXSwapMakeCurrentReadSGI(__GLXclientState *cl, GLbyte *pc);
/************************************************************************/
/*
** Byteswapping versions of GLX commands. In most cases they just swap
** the incoming arguments and then call the unswapped routine. For commands
** that have replies, a separate swapping routine for the reply is provided;
** it is called at the end of the unswapped routine.
*/
int __glXSwapCreateContext(__GLXclientState *cl, GLbyte *pc)
{
xGLXCreateContextReq *req = (xGLXCreateContextReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->context);
__GLX_SWAP_INT(&req->visual);
__GLX_SWAP_INT(&req->screen);
__GLX_SWAP_INT(&req->shareList);
return DoCreateContext( cl, req->context, req->shareList, req->visual,
req->screen, req->isDirect );
}
int __glXSwapCreateNewContext(__GLXclientState *cl, GLbyte *pc)
{
xGLXCreateNewContextReq *req = (xGLXCreateNewContextReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->context);
__GLX_SWAP_INT(&req->fbconfig);
__GLX_SWAP_INT(&req->screen);
__GLX_SWAP_INT(&req->renderType);
__GLX_SWAP_INT(&req->shareList);
return DoCreateContext( cl, req->context, req->shareList, req->fbconfig,
req->screen, req->isDirect );
}
int __glXSwapCreateContextWithConfigSGIX(__GLXclientState *cl, GLbyte *pc)
{
xGLXCreateContextWithConfigSGIXReq *req =
(xGLXCreateContextWithConfigSGIXReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->context);
__GLX_SWAP_INT(&req->fbconfig);
__GLX_SWAP_INT(&req->screen);
__GLX_SWAP_INT(&req->renderType);
__GLX_SWAP_INT(&req->shareList);
return DoCreateContext( cl, req->context, req->shareList, req->fbconfig,
req->screen, req->isDirect );
}
int __glXSwapDestroyContext(__GLXclientState *cl, GLbyte *pc)
{
xGLXDestroyContextReq *req = (xGLXDestroyContextReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->context);
return __glXDestroyContext(cl, pc);
}
int __glXSwapMakeCurrent(__GLXclientState *cl, GLbyte *pc)
{
xGLXMakeCurrentReq *req = (xGLXMakeCurrentReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->drawable);
__GLX_SWAP_INT(&req->context);
__GLX_SWAP_INT(&req->oldContextTag);
return DoMakeCurrent( cl, req->drawable, req->drawable,
req->context, req->oldContextTag );
}
int __glXSwapMakeContextCurrent(__GLXclientState *cl, GLbyte *pc)
{
xGLXMakeContextCurrentReq *req = (xGLXMakeContextCurrentReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->drawable);
__GLX_SWAP_INT(&req->readdrawable);
__GLX_SWAP_INT(&req->context);
__GLX_SWAP_INT(&req->oldContextTag);
return DoMakeCurrent( cl, req->drawable, req->readdrawable,
req->context, req->oldContextTag );
}
int __glXSwapMakeCurrentReadSGI(__GLXclientState *cl, GLbyte *pc)
{
xGLXMakeCurrentReadSGIReq *req = (xGLXMakeCurrentReadSGIReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->drawable);
__GLX_SWAP_INT(&req->readable);
__GLX_SWAP_INT(&req->context);
__GLX_SWAP_INT(&req->oldContextTag);
return DoMakeCurrent( cl, req->drawable, req->readable,
req->context, req->oldContextTag );
}
int __glXSwapIsDirect(__GLXclientState *cl, GLbyte *pc)
{
xGLXIsDirectReq *req = (xGLXIsDirectReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->context);
return __glXIsDirect(cl, pc);
}
int __glXSwapQueryVersion(__GLXclientState *cl, GLbyte *pc)
{
xGLXQueryVersionReq *req = (xGLXQueryVersionReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->majorVersion);
__GLX_SWAP_INT(&req->minorVersion);
return __glXQueryVersion(cl, pc);
}
int __glXSwapWaitGL(__GLXclientState *cl, GLbyte *pc)
{
xGLXWaitGLReq *req = (xGLXWaitGLReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->contextTag);
return __glXWaitGL(cl, pc);
}
int __glXSwapWaitX(__GLXclientState *cl, GLbyte *pc)
{
xGLXWaitXReq *req = (xGLXWaitXReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->contextTag);
return __glXWaitX(cl, pc);
}
int __glXSwapCopyContext(__GLXclientState *cl, GLbyte *pc)
{
xGLXCopyContextReq *req = (xGLXCopyContextReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->source);
__GLX_SWAP_INT(&req->dest);
__GLX_SWAP_INT(&req->mask);
return __glXCopyContext(cl, pc);
}
int __glXSwapGetVisualConfigs(__GLXclientState *cl, GLbyte *pc)
{
xGLXGetVisualConfigsReq *req = (xGLXGetVisualConfigsReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_INT(&req->screen);
return DoGetVisualConfigs( cl, req->screen, GL_TRUE );
}
int __glXSwapGetFBConfigs(__GLXclientState *cl, GLbyte *pc)
{
xGLXGetFBConfigsReq *req = (xGLXGetFBConfigsReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_INT(&req->screen);
return DoGetFBConfigs( cl, req->screen, GL_TRUE );
}
int __glXSwapGetFBConfigsSGIX(__GLXclientState *cl, GLbyte *pc)
{
xGLXGetFBConfigsSGIXReq *req = (xGLXGetFBConfigsSGIXReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_INT(&req->screen);
return DoGetFBConfigs( cl, req->screen, GL_TRUE );
}
int __glXSwapCreateGLXPixmap(__GLXclientState *cl, GLbyte *pc)
{
xGLXCreateGLXPixmapReq *req = (xGLXCreateGLXPixmapReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->screen);
__GLX_SWAP_INT(&req->visual);
__GLX_SWAP_INT(&req->pixmap);
__GLX_SWAP_INT(&req->glxpixmap);
return DoCreateGLXPixmap( cl, req->visual, req->screen,
req->pixmap, req->glxpixmap );
}
int __glXSwapCreatePixmap(__GLXclientState *cl, GLbyte *pc)
{
xGLXCreatePixmapReq *req = (xGLXCreatePixmapReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->screen);
__GLX_SWAP_INT(&req->fbconfig);
__GLX_SWAP_INT(&req->pixmap);
__GLX_SWAP_INT(&req->glxpixmap);
return DoCreateGLXPixmap( cl, req->fbconfig, req->screen,
req->pixmap, req->glxpixmap );
}
int __glXSwapCreateGLXPixmapWithConfigSGIX(__GLXclientState *cl, GLbyte *pc)
{
xGLXCreateGLXPixmapWithConfigSGIXReq *req =
(xGLXCreateGLXPixmapWithConfigSGIXReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->screen);
__GLX_SWAP_INT(&req->fbconfig);
__GLX_SWAP_INT(&req->pixmap);
__GLX_SWAP_INT(&req->glxpixmap);
return DoCreateGLXPixmap( cl, req->fbconfig, req->screen,
req->pixmap, req->glxpixmap );
}
int __glXSwapDestroyGLXPixmap(__GLXclientState *cl, GLbyte *pc)
{
xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->glxpixmap);
return __glXDestroyGLXPixmap(cl, pc);
}
int __glXSwapSwapBuffers(__GLXclientState *cl, GLbyte *pc)
{
xGLXSwapBuffersReq *req = (xGLXSwapBuffersReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->contextTag);
__GLX_SWAP_INT(&req->drawable);
return __glXSwapBuffers(cl, pc);
}
int __glXSwapUseXFont(__GLXclientState *cl, GLbyte *pc)
{
xGLXUseXFontReq *req = (xGLXUseXFontReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->contextTag);
__GLX_SWAP_INT(&req->font);
__GLX_SWAP_INT(&req->first);
__GLX_SWAP_INT(&req->count);
__GLX_SWAP_INT(&req->listBase);
return __glXUseXFont(cl, pc);
}
int __glXSwapQueryExtensionsString(__GLXclientState *cl, GLbyte *pc)
{
xGLXQueryExtensionsStringReq *req = NULL;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->screen);
return __glXQueryExtensionsString(cl, pc);
}
int __glXSwapQueryServerString(__GLXclientState *cl, GLbyte *pc)
{
xGLXQueryServerStringReq *req = (xGLXQueryServerStringReq *)pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->screen);
__GLX_SWAP_INT(&req->name);
return __glXQueryServerString(cl, pc);
}
int __glXSwapClientInfo(__GLXclientState *cl, GLbyte *pc)
{
xGLXClientInfoReq *req = (xGLXClientInfoReq *)pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->major);
__GLX_SWAP_INT(&req->minor);
__GLX_SWAP_INT(&req->numbytes);
return __glXClientInfo(cl, pc);
}
int __glXSwapQueryContextInfoEXT(__GLXclientState *cl, GLbyte *pc)
{
xGLXQueryContextInfoEXTReq *req = (xGLXQueryContextInfoEXTReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->context);
return __glXQueryContextInfoEXT(cl, pc);
}
int __glXSwapBindTexImageEXT(__GLXclientState *cl, GLbyte *pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
GLXDrawable *drawId;
int *buffer;
__GLX_DECLARE_SWAP_VARIABLES;
pc += __GLX_VENDPRIV_HDR_SIZE;
drawId = ((GLXDrawable *) (pc));
buffer = ((int *) (pc + 4));
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->contextTag);
__GLX_SWAP_INT(drawId);
__GLX_SWAP_INT(buffer);
return __glXBindTexImageEXT(cl, (GLbyte *)pc);
}
int __glXSwapReleaseTexImageEXT(__GLXclientState *cl, GLbyte *pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
GLXDrawable *drawId;
int *buffer;
__GLX_DECLARE_SWAP_VARIABLES;
pc += __GLX_VENDPRIV_HDR_SIZE;
drawId = ((GLXDrawable *) (pc));
buffer = ((int *) (pc + 4));
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->contextTag);
__GLX_SWAP_INT(drawId);
__GLX_SWAP_INT(buffer);
return __glXReleaseTexImageEXT(cl, (GLbyte *)pc);
}
int __glXSwapGetDrawableAttributesSGIX(__GLXclientState *cl, GLbyte *pc)
{
xGLXVendorPrivateWithReplyReq *req = (xGLXVendorPrivateWithReplyReq *)pc;
CARD32 *data;
__GLX_DECLARE_SWAP_VARIABLES;
data = (CARD32 *) (req + 1);
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->contextTag);
__GLX_SWAP_INT(data);
return __glXGetDrawableAttributesSGIX(cl, (GLbyte *)pc);
}
/************************************************************************/
/*
** Swap replies.
*/
void __glXSwapMakeCurrentReply(ClientPtr client, xGLXMakeCurrentReply *reply)
{
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&reply->sequenceNumber);
__GLX_SWAP_INT(&reply->length);
__GLX_SWAP_INT(&reply->contextTag);
WriteToClient(client, sz_xGLXMakeCurrentReply, (char *)reply);
}
void __glXSwapIsDirectReply(ClientPtr client, xGLXIsDirectReply *reply)
{
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&reply->sequenceNumber);
__GLX_SWAP_INT(&reply->length);
WriteToClient(client, sz_xGLXIsDirectReply, (char *)reply);
}
void __glXSwapQueryVersionReply(ClientPtr client, xGLXQueryVersionReply *reply)
{
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&reply->sequenceNumber);
__GLX_SWAP_INT(&reply->length);
__GLX_SWAP_INT(&reply->majorVersion);
__GLX_SWAP_INT(&reply->minorVersion);
WriteToClient(client, sz_xGLXQueryVersionReply, (char *)reply);
}
void glxSwapQueryExtensionsStringReply(ClientPtr client,
xGLXQueryExtensionsStringReply *reply, char *buf)
{
int length = reply->length;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_SHORT(&reply->sequenceNumber);
__GLX_SWAP_INT(&reply->length);
__GLX_SWAP_INT(&reply->n);
WriteToClient(client, sz_xGLXQueryExtensionsStringReply, (char *)reply);
__GLX_SWAP_INT_ARRAY((int *)buf, length);
WriteToClient(client, length << 2, buf);
}
void glxSwapQueryServerStringReply(ClientPtr client,
xGLXQueryServerStringReply *reply, char *buf)
{
int length = reply->length;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&reply->sequenceNumber);
__GLX_SWAP_INT(&reply->length);
__GLX_SWAP_INT(&reply->n);
WriteToClient(client, sz_xGLXQueryServerStringReply, (char *)reply);
/** no swap is needed for an array of chars **/
/* __GLX_SWAP_INT_ARRAY((int *)buf, length); */
WriteToClient(client, length << 2, buf);
}
void __glXSwapQueryContextInfoEXTReply(ClientPtr client, xGLXQueryContextInfoEXTReply *reply, int *buf)
{
int length = reply->length;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_SHORT(&reply->sequenceNumber);
__GLX_SWAP_INT(&reply->length);
__GLX_SWAP_INT(&reply->n);
WriteToClient(client, sz_xGLXQueryContextInfoEXTReply, (char *)reply);
__GLX_SWAP_INT_ARRAY((int *)buf, length);
WriteToClient(client, length << 2, (char *)buf);
}
void __glXSwapGetDrawableAttributesReply(ClientPtr client,
xGLXGetDrawableAttributesReply *reply, CARD32 *buf)
{
int length = reply->length;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_SHORT(&reply->sequenceNumber);
__GLX_SWAP_INT(&reply->length);
__GLX_SWAP_INT(&reply->numAttribs);
WriteToClient(client, sz_xGLXGetDrawableAttributesReply, (char *)reply);
__GLX_SWAP_INT_ARRAY((int *)buf, length);
WriteToClient(client, length << 2, (char *)buf);
}
/************************************************************************/
/*
** Render and Renderlarge are not in the GLX API. They are used by the GLX
** client library to send batches of GL rendering commands.
*/
int __glXSwapRender(__GLXclientState *cl, GLbyte *pc)
{
xGLXRenderReq *req;
ClientPtr client= cl->client;
int left, cmdlen, error;
int commandsDone;
CARD16 opcode;
__GLXrenderHeader *hdr;
__GLXcontext *cx;
__GLX_DECLARE_SWAP_VARIABLES;
/*
** NOTE: much of this code also appears in the nonswapping version of this
** routine, __glXRender(). Any changes made here should also be
** duplicated there.
*/
req = (xGLXRenderReq *) pc;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->contextTag);
cx = __glXForceCurrent(cl, req->contextTag, &error);
if (!cx) {
return error;
}
commandsDone = 0;
pc += sz_xGLXRenderReq;
left = (req->length << 2) - sz_xGLXRenderReq;
while (left > 0) {
__GLXrenderSizeData *entry;
int extra;
void (* proc)(GLbyte *);
/*
** Verify that the header length and the overall length agree.
** Also, each command must be word aligned.
*/
hdr = (__GLXrenderHeader *) pc;
__GLX_SWAP_SHORT(&hdr->length);
__GLX_SWAP_SHORT(&hdr->opcode);
cmdlen = hdr->length;
opcode = hdr->opcode;
if ( (opcode >= __GLX_MIN_RENDER_OPCODE) &&
(opcode <= __GLX_MAX_RENDER_OPCODE) ) {
entry = &__glXRenderSizeTable[opcode];
proc = __glXSwapRenderTable[opcode];
#if __GLX_MAX_RENDER_OPCODE_EXT > __GLX_MIN_RENDER_OPCODE_EXT
} else if ( (opcode >= __GLX_MIN_RENDER_OPCODE_EXT) &&
(opcode <= __GLX_MAX_RENDER_OPCODE_EXT) ) {
int index = opcode - __GLX_MIN_RENDER_OPCODE_EXT;
entry = &__glXRenderSizeTable_EXT[index];
proc = __glXSwapRenderTable_EXT[index];
#endif /* __GLX_MAX_RENDER_OPCODE_EXT > __GLX_MIN_RENDER_OPCODE_EXT */
} else {
client->errorValue = commandsDone;
return __glXBadRenderRequest;
}
if (!entry->bytes) {
/* unused opcode */
client->errorValue = commandsDone;
return __glXBadRenderRequest;
}
if (entry->varsize) {
/* variable size command */
extra = (*entry->varsize)(pc + __GLX_RENDER_HDR_SIZE, True);
if (extra < 0) {
extra = 0;
}
if (cmdlen != __GLX_PAD(entry->bytes + extra)) {
return BadLength;
}
} else {
/* constant size command */
if (cmdlen != __GLX_PAD(entry->bytes)) {
return BadLength;
}
}
if (left < cmdlen) {
return BadLength;
}
/*
** Skip over the header and execute the command. We allow the
** caller to trash the command memory. This is useful especially
** for things that require double alignment - they can just shift
** the data towards lower memory (trashing the header) by 4 bytes
** and achieve the required alignment.
*/
(*proc)(pc + __GLX_RENDER_HDR_SIZE);
pc += cmdlen;
left -= cmdlen;
commandsDone++;
}
__GLX_NOTE_UNFLUSHED_CMDS(cx);
return Success;
}
/*
** Execute a large rendering request (one that spans multiple X requests).
*/
int __glXSwapRenderLarge(__GLXclientState *cl, GLbyte *pc)
{
xGLXRenderLargeReq *req;
ClientPtr client= cl->client;
size_t dataBytes;
void (*proc)(GLbyte *);
__GLXrenderLargeHeader *hdr;
__GLXcontext *cx;
int error;
CARD16 opcode;
__GLX_DECLARE_SWAP_VARIABLES;
/*
** NOTE: much of this code also appears in the nonswapping version of this
** routine, __glXRenderLarge(). Any changes made here should also be
** duplicated there.
*/
req = (xGLXRenderLargeReq *) pc;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->contextTag);
__GLX_SWAP_INT(&req->dataBytes);
__GLX_SWAP_SHORT(&req->requestNumber);
__GLX_SWAP_SHORT(&req->requestTotal);
cx = __glXForceCurrent(cl, req->contextTag, &error);
if (!cx) {
/* Reset in case this isn't 1st request. */
__glXResetLargeCommandStatus(cl);
return error;
}
dataBytes = req->dataBytes;
/*
** Check the request length.
*/
if ((req->length << 2) != __GLX_PAD(dataBytes) + sz_xGLXRenderLargeReq) {
client->errorValue = req->length;
/* Reset in case this isn't 1st request. */
__glXResetLargeCommandStatus(cl);
return BadLength;
}
pc += sz_xGLXRenderLargeReq;
if (cl->largeCmdRequestsSoFar == 0) {
__GLXrenderSizeData *entry;
int extra;
size_t cmdlen;
/*
** This is the first request of a multi request command.
** Make enough space in the buffer, then copy the entire request.
*/
if (req->requestNumber != 1) {
client->errorValue = req->requestNumber;
return __glXBadLargeRequest;
}
hdr = (__GLXrenderLargeHeader *) pc;
__GLX_SWAP_INT(&hdr->length);
__GLX_SWAP_INT(&hdr->opcode);
cmdlen = hdr->length;
opcode = hdr->opcode;
if ( (opcode >= __GLX_MIN_RENDER_OPCODE) &&
(opcode <= __GLX_MAX_RENDER_OPCODE) ) {
entry = &__glXRenderSizeTable[opcode];
proc = __glXSwapRenderTable[opcode];
#if __GLX_MAX_RENDER_OPCODE_EXT > __GLX_MIN_RENDER_OPCODE_EXT
} else if ( (opcode >= __GLX_MIN_RENDER_OPCODE_EXT) &&
(opcode <= __GLX_MAX_RENDER_OPCODE_EXT) ) {
int index = opcode - __GLX_MIN_RENDER_OPCODE_EXT;
entry = &__glXRenderSizeTable_EXT[index];
proc = __glXSwapRenderTable_EXT[index];
#endif /* __GLX_MAX_RENDER_OPCODE_EXT > __GLX_MIN_RENDER_OPCODE_EXT */
} else {
client->errorValue = opcode;
return __glXBadLargeRequest;
}
if (!entry->bytes) {
/* unused opcode */
client->errorValue = opcode;
return __glXBadLargeRequest;
}
if (entry->varsize) {
/*
** If it's a variable-size command (a command whose length must
** be computed from its parameters), all the parameters needed
** will be in the 1st request, so it's okay to do this.
*/
extra = (*entry->varsize)(pc + __GLX_RENDER_LARGE_HDR_SIZE, True);
if (extra < 0) {
extra = 0;
}
/* large command's header is 4 bytes longer, so add 4 */
if (cmdlen != __GLX_PAD(entry->bytes + 4 + extra)) {
return BadLength;
}
} else {
/* constant size command */
if (cmdlen != __GLX_PAD(entry->bytes + 4)) {
return BadLength;
}
}
/*
** Make enough space in the buffer, then copy the entire request.
*/
if (cl->largeCmdBufSize < cmdlen) {
if (!cl->largeCmdBuf) {
cl->largeCmdBuf = (GLbyte *) __glXMalloc(cmdlen);
} else {
cl->largeCmdBuf = (GLbyte *) __glXRealloc(cl->largeCmdBuf, cmdlen);
}
if (!cl->largeCmdBuf) {
return BadAlloc;
}
cl->largeCmdBufSize = cmdlen;
}
__glXMemcpy(cl->largeCmdBuf, pc, dataBytes);
cl->largeCmdBytesSoFar = dataBytes;
cl->largeCmdBytesTotal = cmdlen;
cl->largeCmdRequestsSoFar = 1;
cl->largeCmdRequestsTotal = req->requestTotal;
return Success;
} else {
/*
** We are receiving subsequent (i.e. not the first) requests of a
** multi request command.
*/
/*
** Check the request number and the total request count.
*/
if (req->requestNumber != cl->largeCmdRequestsSoFar + 1) {
client->errorValue = req->requestNumber;
__glXResetLargeCommandStatus(cl);
return __glXBadLargeRequest;
}
if (req->requestTotal != cl->largeCmdRequestsTotal) {
client->errorValue = req->requestTotal;
__glXResetLargeCommandStatus(cl);
return __glXBadLargeRequest;
}
/*
** Check that we didn't get too much data.
*/
if ((cl->largeCmdBytesSoFar + dataBytes) > cl->largeCmdBytesTotal) {
client->errorValue = dataBytes;
__glXResetLargeCommandStatus(cl);
return __glXBadLargeRequest;
}
__glXMemcpy(cl->largeCmdBuf + cl->largeCmdBytesSoFar, pc, dataBytes);
cl->largeCmdBytesSoFar += dataBytes;
cl->largeCmdRequestsSoFar++;
if (req->requestNumber == cl->largeCmdRequestsTotal) {
/*
** This is the last request; it must have enough bytes to complete
** the command.
*/
/* NOTE: the two pad macros have been added below; they are needed
** because the client library pads the total byte count, but not
** the per-request byte counts. The Protocol Encoding says the
** total byte count should not be padded, so a proposal will be
** made to the ARB to relax the padding constraint on the total
** byte count, thus preserving backward compatibility. Meanwhile,
** the padding done below fixes a bug that did not allow
** large commands of odd sizes to be accepted by the server.
*/
if (__GLX_PAD(cl->largeCmdBytesSoFar) !=
__GLX_PAD(cl->largeCmdBytesTotal)) {
client->errorValue = dataBytes;
__glXResetLargeCommandStatus(cl);
return __glXBadLargeRequest;
}
hdr = (__GLXrenderLargeHeader *) cl->largeCmdBuf;
/*
** The opcode and length field in the header had already been
** swapped when the first request was received.
*/
/*
** Use the opcode to index into the procedure table.
*/
opcode = hdr->opcode;
if ( (opcode >= __GLX_MIN_RENDER_OPCODE) &&
(opcode <= __GLX_MAX_RENDER_OPCODE) ) {
proc = __glXSwapRenderTable[opcode];
#if __GLX_MAX_RENDER_OPCODE_EXT > __GLX_MIN_RENDER_OPCODE_EXT
} else if ( (opcode >= __GLX_MIN_RENDER_OPCODE_EXT) &&
(opcode <= __GLX_MAX_RENDER_OPCODE_EXT) ) {
int index = opcode - __GLX_MIN_RENDER_OPCODE_EXT;
proc = __glXSwapRenderTable_EXT[index];
#endif /* __GLX_MAX_RENDER_OPCODE_EXT > __GLX_MIN_RENDER_OPCODE_EXT */
} else {
client->errorValue = opcode;
return __glXBadLargeRequest;
}
/*
** Skip over the header and execute the command.
*/
(*proc)(cl->largeCmdBuf + __GLX_RENDER_LARGE_HDR_SIZE);
__GLX_NOTE_UNFLUSHED_CMDS(cx);
/*
** Reset for the next RenderLarge series.
*/
__glXResetLargeCommandStatus(cl);
} else {
/*
** This is neither the first nor the last request.
*/
}
return Success;
}
}
/************************************************************************/
/*
** No support is provided for the vendor-private requests other than
** allocating these entry points in the dispatch table.
*/
int __glXSwapVendorPrivate(__GLXclientState *cl, GLbyte *pc)
{
xGLXVendorPrivateReq *req;
GLint vendorcode;
__GLX_DECLARE_SWAP_VARIABLES;
req = (xGLXVendorPrivateReq *) pc;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->vendorCode);
vendorcode = req->vendorCode;
#ifndef __DARWIN__
switch( vendorcode ) {
case X_GLvop_SampleMaskSGIS:
__GLX_SWAP_FLOAT(pc + 4);
__GLX_SWAP_INT(pc + 8);
CALL_SampleMaskSGIS( GET_DISPATCH(),
(*(GLfloat *)(pc + 4), *(GLboolean *)(pc + 8)) );
return Success;
case X_GLvop_SamplePatternSGIS:
__GLX_SWAP_INT(pc + 4);
CALL_SamplePatternSGIS( GET_DISPATCH(), (*(GLenum *)(pc + 4)) );
return Success;
case X_GLXvop_BindTexImageEXT:
return __glXSwapBindTexImageEXT(cl, pc);
case X_GLXvop_ReleaseTexImageEXT:
return __glXSwapReleaseTexImageEXT(cl, pc);
}
#endif
if ((vendorcode >= __GLX_MIN_VENDPRIV_OPCODE_EXT) &&
(vendorcode <= __GLX_MAX_VENDPRIV_OPCODE_EXT)) {
(*__glXSwapVendorPrivTable_EXT[vendorcode-__GLX_MIN_VENDPRIV_OPCODE_EXT])(cl, (GLbyte*)req);
return Success;
}
cl->client->errorValue = req->vendorCode;
return __glXUnsupportedPrivateRequest;
}
int __glXSwapVendorPrivateWithReply(__GLXclientState *cl, GLbyte *pc)
{
xGLXVendorPrivateWithReplyReq *req;
GLint vendorcode;
__GLX_DECLARE_SWAP_VARIABLES;
req = (xGLXVendorPrivateWithReplyReq *) pc;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->vendorCode);
vendorcode = req->vendorCode;
switch (vendorcode) {
case X_GLXvop_QueryContextInfoEXT:
return __glXSwapQueryContextInfoEXT(cl, pc);
case X_GLXvop_MakeCurrentReadSGI:
return __glXSwapMakeCurrentReadSGI(cl, pc);
case X_GLXvop_GetFBConfigsSGIX:
return __glXSwapGetFBConfigsSGIX(cl, pc);
case X_GLXvop_CreateContextWithConfigSGIX:
return __glXSwapCreateContextWithConfigSGIX(cl, pc);
case X_GLXvop_CreateGLXPixmapWithConfigSGIX:
return __glXSwapCreateGLXPixmapWithConfigSGIX(cl, pc);
case X_GLXvop_GetDrawableAttributesSGIX:
return __glXSwapGetDrawableAttributesSGIX(cl, pc);
default:
break;
}
if ((vendorcode >= __GLX_MIN_VENDPRIV_OPCODE_EXT) &&
(vendorcode <= __GLX_MAX_VENDPRIV_OPCODE_EXT)) {
return (*__glXSwapVendorPrivTable_EXT[vendorcode-__GLX_MIN_VENDPRIV_OPCODE_EXT])(cl, (GLbyte*)req);
}
cl->client->errorValue = req->vendorCode;
return __glXUnsupportedPrivateRequest;
}
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