andreacavalli/xserver-multidpi
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
370c8c75ca
xserver-multidpi/hw/dmx/glxProxy/glxvendor.c
Alan Coopersmith 2704bdb24a DMX glxproxy: Don't allocate & copy data just to free it unused 
Two functions in the DMX glxproxy code loop over all the backend
screens, starting at the highest numbered and counting down to
the lowest.

Previously, for each screen, the code would allocate a buffer
large enough to read the reply from the backend, copy that reply
into the buffer, and then if it wasn't the final screen, free it.
Only the buffer from the final screen is used, to pass on to the
client in the reply.

This modifies it to just immediately discard the responses from
the screens as we loop through it, only doing the allocate & copy
work for the one buffer we pass back to the client.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Alex Deucher <aleander.deucher@amd.com>
2013-10-14 17:56:44 -07:00

621 lines
17 KiB
C
Raw Blame History

/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED */
/*
* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
* Copyright (C) 1991-2000 Silicon Graphics, Inc. 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, 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 including the dates of first publication and
* either this permission notice or a reference to
* http://oss.sgi.com/projects/FreeB/
* 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
* SILICON GRAPHICS, INC. 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.
*
* Except as contained in this notice, the name of Silicon Graphics, Inc.
* shall not be used in advertising or otherwise to promote the sale, use or
* other dealings in this Software without prior written authorization from
* Silicon Graphics, Inc.
*/
#ifdef HAVE_DMX_CONFIG_H
#include <dmx-config.h>
#endif
#include "dmx.h"
#include "dmxwindow.h"
#include "dmxpixmap.h"
#include "dmxfont.h"
#include "glxserver.h"
#include "glxext.h"
#include "g_disptab.h"
/* #include "g_disptab_EXT.h" */
#include "unpack.h"
#include "glxutil.h"
#include "GL/glxproto.h"
#ifdef PANORAMIX
#include "panoramiXsrv.h"
#endif
/*
* GetReqVendorPrivate - this is the equivalent of GetReq macro
* from Xlibint.h but it does not set the reqType field (the opcode).
* this is because the GL single opcodes has different naming convension
* the other X opcodes (ie. X_GLsop_GetFloatv).
*/
#if (defined(__STDC__) && !defined(UNIXCPP)) || defined(ANSICPP)
#define GetReqVendorPrivate(name, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(x##name##Req)) > dpy->bufmax)\
_XFlush(dpy);\
req = (x##name##Req *)(dpy->last_req = dpy->bufptr);\
req->length = (SIZEOF(x##name##Req))>>2;\
dpy->bufptr += SIZEOF(x##name##Req);\
dpy->request++
#else /* non-ANSI C uses empty comment instead of "##" for token concatenation */
#define GetReqVendorPrivate(name, req) \
WORD64ALIGN\
if ((dpy->bufptr + SIZEOF(x/**/name/**/Req)) > dpy->bufmax)\
_XFlush(dpy);\
req = (x/**/name/**/Req *)(dpy->last_req = dpy->bufptr);\
req->length = (SIZEOF(x/**/name/**/Req))>>2;\
dpy->bufptr += SIZEOF(x/**/name/**/Req);\
dpy->request++
#endif
extern Display *GetBackEndDisplay(__GLXclientState * cl, int s);
extern int GetCurrentBackEndTag(__GLXclientState * cl, GLXContextTag tag,
int s);
static int swap_vec_element_size = 0;
static void
SendSwappedReply(ClientPtr client,
xGLXVendorPrivReply * reply, char *buf, int buf_size)
{
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&reply->sequenceNumber);
__GLX_SWAP_INT(&reply->length);
__GLX_SWAP_INT(&reply->retval);
__GLX_SWAP_INT(&reply->size);
if ((buf_size == 0) && (swap_vec_element_size > 0)) {
/*
* the reply has single component - need to swap pad3
*/
if (swap_vec_element_size == 2) {
__GLX_SWAP_SHORT(&reply->pad3);
}
else if (swap_vec_element_size == 4) {
__GLX_SWAP_INT(&reply->pad3);
__GLX_SWAP_INT(&reply->pad4);
}
else if (swap_vec_element_size == 8) {
__GLX_SWAP_DOUBLE(&reply->pad3);
}
}
else if ((buf_size > 0) && (swap_vec_element_size > 0)) {
/*
* the reply has vector of elements which needs to be swapped
*/
int vsize = buf_size / swap_vec_element_size;
char *p = buf;
int i;
for (i = 0; i < vsize; i++) {
if (swap_vec_element_size == 2) {
__GLX_SWAP_SHORT(p);
}
else if (swap_vec_element_size == 4) {
__GLX_SWAP_INT(p);
}
else if (swap_vec_element_size == 8) {
__GLX_SWAP_DOUBLE(p);
}
p += swap_vec_element_size;
}
__GLX_SWAP_INT(&reply->pad3);
__GLX_SWAP_INT(&reply->pad4);
__GLX_SWAP_INT(&reply->pad5);
__GLX_SWAP_INT(&reply->pad6);
}
WriteToClient(client, sizeof(xGLXVendorPrivReply), reply);
if (buf_size > 0)
WriteToClient(client, buf_size, buf);
}
int
__glXVForwardSingleReq(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
xGLXVendorPrivateReq *be_req;
__GLXcontext *glxc;
int from_screen = 0;
int to_screen = 0;
int buf_size;
int s;
glxc = __glXLookupContextByTag(cl, req->contextTag);
if (!glxc) {
return 0;
}
from_screen = to_screen = glxc->pScreen->myNum;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
pc += sz_xGLXVendorPrivateReq;
buf_size = (req->length << 2) - sz_xGLXVendorPrivateReq;
/*
* just forward the request to back-end server(s)
*/
for (s = from_screen; s <= to_screen; s++) {
DMXScreenInfo *dmxScreen = &dmxScreens[s];
Display *dpy = GetBackEndDisplay(cl, s);
LockDisplay(dpy);
GetReqVendorPrivate(GLXVendorPrivate, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = req->glxCode;
be_req->length = req->length;
be_req->vendorCode = req->vendorCode;
be_req->contextTag = GetCurrentBackEndTag(cl, req->contextTag, s);
if (buf_size > 0)
_XSend(dpy, (const char *) pc, buf_size);
UnlockDisplay(dpy);
SyncHandle();
}
return Success;
}
int
__glXVForwardPipe0WithReply(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
xGLXVendorPrivateReq *be_req;
xGLXVendorPrivReply reply;
xGLXVendorPrivReply be_reply;
__GLXcontext *glxc;
int buf_size;
char *be_buf = NULL;
int be_buf_size;
DMXScreenInfo *dmxScreen;
Display *dpy;
glxc = __glXLookupContextByTag(cl, req->contextTag);
if (!glxc) {
return __glXBadContext;
}
pc += sz_xGLXVendorPrivateReq;
buf_size = (req->length << 2) - sz_xGLXVendorPrivateReq;
dmxScreen = &dmxScreens[glxc->pScreen->myNum];
dpy = GetBackEndDisplay(cl, glxc->pScreen->myNum);
/*
* send the request to the first back-end server
*/
LockDisplay(dpy);
GetReqVendorPrivate(GLXVendorPrivate, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = req->glxCode;
be_req->length = req->length;
be_req->vendorCode = req->vendorCode;
be_req->contextTag =
GetCurrentBackEndTag(cl, req->contextTag, glxc->pScreen->myNum);
if (buf_size > 0)
_XSend(dpy, (const char *) pc, buf_size);
/*
* get the reply from the back-end server
*/
_XReply(dpy, (xReply *) &be_reply, 0, False);
be_buf_size = be_reply.length << 2;
if (be_buf_size > 0) {
be_buf = (char *) malloc(be_buf_size);
if (be_buf) {
_XRead(dpy, be_buf, be_buf_size);
}
else {
/* Throw data on the floor */
_XEatDataWords(dpy, be_reply.length);
return BadAlloc;
}
}
UnlockDisplay(dpy);
SyncHandle();
/*
* send the reply to the client
*/
memcpy(&reply, &be_reply, sz_xGLXVendorPrivReply);
reply.type = X_Reply;
reply.sequenceNumber = client->sequence;
if (client->swapped) {
SendSwappedReply(client, &reply, be_buf, be_buf_size);
}
else {
WriteToClient(client, sizeof(xGLXVendorPrivReply), &reply);
if (be_buf_size > 0)
WriteToClient(client, be_buf_size, be_buf);
}
if (be_buf_size > 0)
free(be_buf);
return Success;
}
int
__glXVForwardAllWithReply(__GLXclientState * cl, GLbyte * pc)
{
ClientPtr client = cl->client;
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
xGLXVendorPrivateReq *be_req;
xGLXVendorPrivReply reply;
xGLXVendorPrivReply be_reply;
__GLXcontext *glxc;
int buf_size;
char *be_buf = NULL;
int be_buf_size = 0;
int from_screen = 0;
int to_screen = 0;
int s;
DMXScreenInfo *dmxScreen;
Display *dpy;
glxc = __glXLookupContextByTag(cl, req->contextTag);
if (!glxc) {
return 0;
}
from_screen = to_screen = glxc->pScreen->myNum;
#ifdef PANORAMIX
if (!noPanoramiXExtension) {
from_screen = 0;
to_screen = screenInfo.numScreens - 1;
}
#endif
pc += sz_xGLXVendorPrivateReq;
buf_size = (req->length << 2) - sz_xGLXVendorPrivateReq;
/*
* send the request to the first back-end server(s)
*/
for (s = to_screen; s >= from_screen; s--) {
dmxScreen = &dmxScreens[s];
dpy = GetBackEndDisplay(cl, s);
LockDisplay(dpy);
GetReqVendorPrivate(GLXVendorPrivate, be_req);
be_req->reqType = dmxScreen->glxMajorOpcode;
be_req->glxCode = req->glxCode;
be_req->length = req->length;
be_req->vendorCode = req->vendorCode;
be_req->contextTag = GetCurrentBackEndTag(cl, req->contextTag, s);
if (buf_size > 0)
_XSend(dpy, (const char *) pc, buf_size);
/*
* get the reply from the back-end server
*/
_XReply(dpy, (xReply *) &be_reply, 0, False);
if (s == from_screen) {
/* Save data from last reply to send on to client */
be_buf_size = be_reply.length << 2;
if (be_buf_size > 0) {
be_buf = malloc(be_buf_size);
if (be_buf) {
_XRead(dpy, be_buf, be_buf_size);
}
else {
/* Throw data on the floor */
_XEatDataWords(dpy, be_reply.length);
return BadAlloc;
}
}
}
else {
/* Just discard data from all replies before the last one */
if (be_reply.length > 0)
_XEatDataWords(dpy, be_reply.length);
}
UnlockDisplay(dpy);
SyncHandle();
}
/*
* send the reply to the client
*/
memcpy(&reply, &be_reply, sz_xGLXVendorPrivReply);
reply.type = X_Reply;
reply.sequenceNumber = client->sequence;
if (client->swapped) {
SendSwappedReply(client, &reply, be_buf, be_buf_size);
}
else {
WriteToClient(client, sizeof(xGLXVendorPrivReply), &reply);
if (be_buf_size > 0)
WriteToClient(client, be_buf_size, be_buf);
}
if (be_buf_size > 0)
free(be_buf);
return Success;
}
int
__glXVForwardSingleReqSwap(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->vendorCode);
__GLX_SWAP_INT(&req->contextTag);
swap_vec_element_size = 0;
return (__glXVForwardSingleReq(cl, pc));
}
int
__glXVForwardPipe0WithReplySwap(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->vendorCode);
__GLX_SWAP_INT(&req->contextTag);
swap_vec_element_size = 0;
/*
* swap extra data in request - assuming all data
* (if available) are arrays of 4 bytes components !
*/
if (req->length > sz_xGLXVendorPrivateReq / 4) {
int *data = (int *) (req + 1);
int count = req->length - sz_xGLXVendorPrivateReq / 4;
__GLX_SWAP_INT_ARRAY(data, count);
}
return (__glXVForwardPipe0WithReply(cl, pc));
}
int
__glXVForwardPipe0WithReplySwapsv(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->vendorCode);
__GLX_SWAP_INT(&req->contextTag);
swap_vec_element_size = 2;
/*
* swap extra data in request - assuming all data
* (if available) are arrays of 4 bytes components !
*/
if (req->length > sz_xGLXVendorPrivateReq / 4) {
int *data = (int *) (req + 1);
int count = req->length - sz_xGLXVendorPrivateReq / 4;
__GLX_SWAP_INT_ARRAY(data, count);
}
return (__glXVForwardPipe0WithReply(cl, pc));
}
int
__glXVForwardPipe0WithReplySwapiv(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->vendorCode);
__GLX_SWAP_INT(&req->contextTag);
swap_vec_element_size = 4;
/*
* swap extra data in request - assuming all data
* (if available) are arrays of 4 bytes components !
*/
if (req->length > sz_xGLXVendorPrivateReq / 4) {
int *data = (int *) (req + 1);
int count = req->length - sz_xGLXVendorPrivateReq / 4;
__GLX_SWAP_INT_ARRAY(data, count);
}
return (__glXVForwardPipe0WithReply(cl, pc));
}
int
__glXVForwardPipe0WithReplySwapdv(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->vendorCode);
__GLX_SWAP_INT(&req->contextTag);
swap_vec_element_size = 8;
/*
* swap extra data in request - assuming all data
* (if available) are arrays of 4 bytes components !
*/
if (req->length > sz_xGLXVendorPrivateReq / 4) {
int *data = (int *) (req + 1);
int count = req->length - sz_xGLXVendorPrivateReq / 4;
__GLX_SWAP_INT_ARRAY(data, count);
}
return (__glXVForwardPipe0WithReply(cl, pc));
}
int
__glXVForwardAllWithReplySwap(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->vendorCode);
__GLX_SWAP_INT(&req->contextTag);
swap_vec_element_size = 0;
/*
* swap extra data in request - assuming all data
* (if available) are arrays of 4 bytes components !
*/
if (req->length > sz_xGLXVendorPrivateReq / 4) {
int *data = (int *) (req + 1);
int count = req->length - sz_xGLXVendorPrivateReq / 4;
__GLX_SWAP_INT_ARRAY(data, count);
}
return (__glXVForwardAllWithReply(cl, pc));
}
int
__glXVForwardAllWithReplySwapsv(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->vendorCode);
__GLX_SWAP_INT(&req->contextTag);
swap_vec_element_size = 2;
/*
* swap extra data in request - assuming all data
* (if available) are arrays of 4 bytes components !
*/
if (req->length > sz_xGLXVendorPrivateReq / 4) {
int *data = (int *) (req + 1);
int count = req->length - sz_xGLXVendorPrivateReq / 4;
__GLX_SWAP_INT_ARRAY(data, count);
}
return (__glXVForwardAllWithReply(cl, pc));
}
int
__glXVForwardAllWithReplySwapiv(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->vendorCode);
__GLX_SWAP_INT(&req->contextTag);
swap_vec_element_size = 4;
/*
* swap extra data in request - assuming all data
* (if available) are arrays of 4 bytes components !
*/
if (req->length > sz_xGLXVendorPrivateReq / 4) {
int *data = (int *) (req + 1);
int count = req->length - sz_xGLXVendorPrivateReq / 4;
__GLX_SWAP_INT_ARRAY(data, count);
}
return (__glXVForwardAllWithReply(cl, pc));
}
int
__glXVForwardAllWithReplySwapdv(__GLXclientState * cl, GLbyte * pc)
{
xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
__GLX_SWAP_SHORT(&req->length);
__GLX_SWAP_INT(&req->vendorCode);
__GLX_SWAP_INT(&req->contextTag);
swap_vec_element_size = 8;
/*
* swap extra data in request - assuming all data
* (if available) are arrays of 4 bytes components !
*/
if (req->length > sz_xGLXVendorPrivateReq / 4) {
int *data = (int *) (req + 1);
int count = req->length - sz_xGLXVendorPrivateReq / 4;
__GLX_SWAP_INT_ARRAY(data, count);
}
return (__glXVForwardAllWithReply(cl, pc));
}
Reference in New Issue View Git Blame Copy Permalink