281 lines
8.2 KiB
C
281 lines
8.2 KiB
C
/*
|
|
* 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_DIX_CONFIG_H
|
|
#include <dix-config.h>
|
|
#endif
|
|
|
|
#include "glxserver.h"
|
|
#include "glxutil.h"
|
|
#include "glxext.h"
|
|
#include "indirect_dispatch.h"
|
|
#include "unpack.h"
|
|
#include "glapitable.h"
|
|
#include "glapi.h"
|
|
#include "glthread.h"
|
|
#include "dispatch.h"
|
|
|
|
int
|
|
__glXDispSwap_FeedbackBuffer(__GLXclientState * cl, GLbyte * pc)
|
|
{
|
|
GLsizei size;
|
|
GLenum type;
|
|
|
|
__GLX_DECLARE_SWAP_VARIABLES;
|
|
__GLXcontext *cx;
|
|
int error;
|
|
|
|
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
|
|
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
|
|
if (!cx) {
|
|
return error;
|
|
}
|
|
|
|
pc += __GLX_SINGLE_HDR_SIZE;
|
|
__GLX_SWAP_INT(pc + 0);
|
|
__GLX_SWAP_INT(pc + 4);
|
|
size = *(GLsizei *) (pc + 0);
|
|
type = *(GLenum *) (pc + 4);
|
|
if (cx->feedbackBufSize < size) {
|
|
cx->feedbackBuf = (GLfloat *) realloc(cx->feedbackBuf,
|
|
(size_t) size
|
|
* __GLX_SIZE_FLOAT32);
|
|
if (!cx->feedbackBuf) {
|
|
cl->client->errorValue = size;
|
|
return BadAlloc;
|
|
}
|
|
cx->feedbackBufSize = size;
|
|
}
|
|
CALL_FeedbackBuffer(GET_DISPATCH(), (size, type, cx->feedbackBuf));
|
|
cx->hasUnflushedCommands = GL_TRUE;
|
|
return Success;
|
|
}
|
|
|
|
int
|
|
__glXDispSwap_SelectBuffer(__GLXclientState * cl, GLbyte * pc)
|
|
{
|
|
__GLXcontext *cx;
|
|
GLsizei size;
|
|
|
|
__GLX_DECLARE_SWAP_VARIABLES;
|
|
int error;
|
|
|
|
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
|
|
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
|
|
if (!cx) {
|
|
return error;
|
|
}
|
|
|
|
pc += __GLX_SINGLE_HDR_SIZE;
|
|
__GLX_SWAP_INT(pc + 0);
|
|
size = *(GLsizei *) (pc + 0);
|
|
if (cx->selectBufSize < size) {
|
|
cx->selectBuf = (GLuint *) realloc(cx->selectBuf,
|
|
(size_t) size * __GLX_SIZE_CARD32);
|
|
if (!cx->selectBuf) {
|
|
cl->client->errorValue = size;
|
|
return BadAlloc;
|
|
}
|
|
cx->selectBufSize = size;
|
|
}
|
|
CALL_SelectBuffer(GET_DISPATCH(), (size, cx->selectBuf));
|
|
cx->hasUnflushedCommands = GL_TRUE;
|
|
return Success;
|
|
}
|
|
|
|
int
|
|
__glXDispSwap_RenderMode(__GLXclientState * cl, GLbyte * pc)
|
|
{
|
|
ClientPtr client;
|
|
__GLXcontext *cx;
|
|
xGLXRenderModeReply reply;
|
|
GLint nitems = 0, retBytes = 0, retval, newModeCheck;
|
|
GLubyte *retBuffer = NULL;
|
|
GLenum newMode;
|
|
|
|
__GLX_DECLARE_SWAP_VARIABLES;
|
|
__GLX_DECLARE_SWAP_ARRAY_VARIABLES;
|
|
int error;
|
|
|
|
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
|
|
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
|
|
if (!cx) {
|
|
return error;
|
|
}
|
|
|
|
pc += __GLX_SINGLE_HDR_SIZE;
|
|
__GLX_SWAP_INT(pc);
|
|
newMode = *(GLenum *) pc;
|
|
retval = CALL_RenderMode(GET_DISPATCH(), (newMode));
|
|
|
|
/* Check that render mode worked */
|
|
CALL_GetIntegerv(GET_DISPATCH(), (GL_RENDER_MODE, &newModeCheck));
|
|
if (newModeCheck != newMode) {
|
|
/* Render mode change failed. Bail */
|
|
newMode = newModeCheck;
|
|
goto noChangeAllowed;
|
|
}
|
|
|
|
/*
|
|
** Render mode might have still failed if we get here. But in this
|
|
** case we can't really tell, nor does it matter. If it did fail, it
|
|
** will return 0, and thus we won't send any data across the wire.
|
|
*/
|
|
|
|
switch (cx->renderMode) {
|
|
case GL_RENDER:
|
|
cx->renderMode = newMode;
|
|
break;
|
|
case GL_FEEDBACK:
|
|
if (retval < 0) {
|
|
/* Overflow happened. Copy the entire buffer */
|
|
nitems = cx->feedbackBufSize;
|
|
}
|
|
else {
|
|
nitems = retval;
|
|
}
|
|
retBytes = nitems * __GLX_SIZE_FLOAT32;
|
|
retBuffer = (GLubyte *) cx->feedbackBuf;
|
|
__GLX_SWAP_FLOAT_ARRAY((GLbyte *) retBuffer, nitems);
|
|
cx->renderMode = newMode;
|
|
break;
|
|
case GL_SELECT:
|
|
if (retval < 0) {
|
|
/* Overflow happened. Copy the entire buffer */
|
|
nitems = cx->selectBufSize;
|
|
}
|
|
else {
|
|
GLuint *bp = cx->selectBuf;
|
|
GLint i;
|
|
|
|
/*
|
|
** Figure out how many bytes of data need to be sent. Parse
|
|
** the selection buffer to determine this fact as the
|
|
** return value is the number of hits, not the number of
|
|
** items in the buffer.
|
|
*/
|
|
nitems = 0;
|
|
i = retval;
|
|
while (--i >= 0) {
|
|
GLuint n;
|
|
|
|
/* Parse select data for this hit */
|
|
n = *bp;
|
|
bp += 3 + n;
|
|
}
|
|
nitems = bp - cx->selectBuf;
|
|
}
|
|
retBytes = nitems * __GLX_SIZE_CARD32;
|
|
retBuffer = (GLubyte *) cx->selectBuf;
|
|
__GLX_SWAP_INT_ARRAY((GLbyte *) retBuffer, nitems);
|
|
cx->renderMode = newMode;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** First reply is the number of elements returned in the feedback or
|
|
** selection array, as per the API for glRenderMode itself.
|
|
*/
|
|
noChangeAllowed:;
|
|
client = cl->client;
|
|
reply = (xGLXRenderModeReply) {
|
|
.type = X_Reply,
|
|
.sequenceNumber = client->sequence,
|
|
.length = nitems,
|
|
.retval = retval,
|
|
.size = nitems,
|
|
.newMode = newMode
|
|
};
|
|
__GLX_SWAP_SHORT(&reply.sequenceNumber);
|
|
__GLX_SWAP_INT(&reply.length);
|
|
__GLX_SWAP_INT(&reply.retval);
|
|
__GLX_SWAP_INT(&reply.size);
|
|
__GLX_SWAP_INT(&reply.newMode);
|
|
WriteToClient(client, sz_xGLXRenderModeReply, &reply);
|
|
if (retBytes) {
|
|
WriteToClient(client, retBytes, retBuffer);
|
|
}
|
|
return Success;
|
|
}
|
|
|
|
int
|
|
__glXDispSwap_Flush(__GLXclientState * cl, GLbyte * pc)
|
|
{
|
|
__GLXcontext *cx;
|
|
int error;
|
|
|
|
__GLX_DECLARE_SWAP_VARIABLES;
|
|
|
|
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
|
|
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
|
|
if (!cx) {
|
|
return error;
|
|
}
|
|
|
|
CALL_Flush(GET_DISPATCH(), ());
|
|
cx->hasUnflushedCommands = GL_FALSE;
|
|
return Success;
|
|
}
|
|
|
|
int
|
|
__glXDispSwap_Finish(__GLXclientState * cl, GLbyte * pc)
|
|
{
|
|
__GLXcontext *cx;
|
|
ClientPtr client;
|
|
int error;
|
|
|
|
__GLX_DECLARE_SWAP_VARIABLES;
|
|
|
|
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
|
|
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
|
|
if (!cx) {
|
|
return error;
|
|
}
|
|
|
|
/* Do a local glFinish */
|
|
CALL_Finish(GET_DISPATCH(), ());
|
|
cx->hasUnflushedCommands = GL_FALSE;
|
|
|
|
/* Send empty reply packet to indicate finish is finished */
|
|
client = cl->client;
|
|
__GLX_BEGIN_REPLY(0);
|
|
__GLX_PUT_RETVAL(0);
|
|
__GLX_SWAP_REPLY_HEADER();
|
|
__GLX_SEND_HEADER();
|
|
|
|
return Success;
|
|
}
|
|
|
|
int
|
|
__glXDispSwap_GetString(__GLXclientState * cl, GLbyte * pc)
|
|
{
|
|
return DoGetString(cl, pc, GL_TRUE);
|
|
}
|