From 1c94119ae26b94a60bb2c2b33494ed43c3b8a52f Mon Sep 17 00:00:00 2001 From: marha Date: Sun, 16 May 2010 20:50:58 +0000 Subject: svn merge -r588:HEAD ^/branches/released . --- xorg-server/glx/single2.c | 790 +++++++++++++++++++++++----------------------- 1 file changed, 395 insertions(+), 395 deletions(-) (limited to 'xorg-server/glx/single2.c') diff --git a/xorg-server/glx/single2.c b/xorg-server/glx/single2.c index f6e474c46..4d8aeaa83 100644 --- a/xorg-server/glx/single2.c +++ b/xorg-server/glx/single2.c @@ -1,395 +1,395 @@ -/* - * 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 -#else - -#include "glheader.h" - -#endif - -#include -#include -#include - -#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 __glXDisp_FeedbackBuffer(__GLXclientState *cl, GLbyte *pc) -{ - GLsizei size; - GLenum type; - __GLXcontext *cx; - int error; - - cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); - if (!cx) { - return error; - } - - pc += __GLX_SINGLE_HDR_SIZE; - size = *(GLsizei *)(pc+0); - type = *(GLenum *)(pc+4); - if (cx->feedbackBufSize < size) { - cx->feedbackBuf = (GLfloat *) xrealloc(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) ); - __GLX_NOTE_UNFLUSHED_CMDS(cx); - return Success; -} - -int __glXDisp_SelectBuffer(__GLXclientState *cl, GLbyte *pc) -{ - __GLXcontext *cx; - GLsizei size; - int error; - - cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); - if (!cx) { - return error; - } - - pc += __GLX_SINGLE_HDR_SIZE; - size = *(GLsizei *)(pc+0); - if (cx->selectBufSize < size) { - cx->selectBuf = (GLuint *) xrealloc(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) ); - __GLX_NOTE_UNFLUSHED_CMDS(cx); - return Success; -} - -int __glXDisp_RenderMode(__GLXclientState *cl, GLbyte *pc) -{ - ClientPtr client; - xGLXRenderModeReply reply; - __GLXcontext *cx; - GLint nitems=0, retBytes=0, retval, newModeCheck; - GLubyte *retBuffer = NULL; - GLenum newMode; - int error; - - cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); - if (!cx) { - return error; - } - - pc += __GLX_SINGLE_HDR_SIZE; - 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; - 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; - 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.length = nitems; - reply.type = X_Reply; - reply.sequenceNumber = client->sequence; - reply.retval = retval; - reply.size = nitems; - reply.newMode = newMode; - WriteToClient(client, sz_xGLXRenderModeReply, (char *)&reply); - if (retBytes) { - WriteToClient(client, retBytes, (char *)retBuffer); - } - return Success; -} - -int __glXDisp_Flush(__GLXclientState *cl, GLbyte *pc) -{ - __GLXcontext *cx; - int error; - - cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); - if (!cx) { - return error; - } - - CALL_Flush( GET_DISPATCH(), () ); - __GLX_NOTE_FLUSHED_CMDS(cx); - return Success; -} - -int __glXDisp_Finish(__GLXclientState *cl, GLbyte *pc) -{ - __GLXcontext *cx; - ClientPtr client; - int error; - - cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); - if (!cx) { - return error; - } - - /* Do a local glFinish */ - CALL_Finish( GET_DISPATCH(), () ); - __GLX_NOTE_FLUSHED_CMDS(cx); - - /* Send empty reply packet to indicate finish is finished */ - client = cl->client; - __GLX_BEGIN_REPLY(0); - __GLX_SEND_HEADER(); - return Success; -} - -#define SEPARATOR " " - -char *__glXcombine_strings(const char *cext_string, const char *sext_string) -{ - size_t clen, slen; - char *combo_string, *token, *s1; - const char *s2, *end; - - /* safeguard to prevent potentially fatal errors in the string functions */ - if (!cext_string) - cext_string = ""; - if (!sext_string) - sext_string = ""; - - /* - ** String can't be longer than min(cstring, sstring) - ** pull tokens out of shortest string - ** include space in combo_string for final separator and null terminator - */ - clen = strlen(cext_string); - slen = strlen(sext_string); - if (clen > slen) { - combo_string = (char *) xalloc(slen + 2); - s1 = (char *) xalloc(slen + 2); - if (s1) strcpy(s1, sext_string); - s2 = cext_string; - } else { - combo_string = (char *) xalloc(clen + 2); - s1 = (char *) xalloc(clen + 2); - if (s1) strcpy(s1, cext_string); - s2 = sext_string; - } - if (!combo_string || !s1) { - if (combo_string) - xfree(combo_string); - if (s1) - xfree(s1); - return NULL; - } - combo_string[0] = '\0'; - - /* Get first extension token */ - token = strtok( s1, SEPARATOR); - while ( token != NULL ) { - - /* - ** if token in second string then save it - ** beware of extension names which are prefixes of other extension names - */ - const char *p = s2; - end = p + strlen(p); - while (p < end) { - size_t n = strcspn(p, SEPARATOR); - if ((strlen(token) == n) && (strncmp(token, p, n) == 0)) { - combo_string = strcat(combo_string, token); - combo_string = strcat(combo_string, SEPARATOR); - } - p += (n + 1); - } - - /* Get next extension token */ - token = strtok( NULL, SEPARATOR); - } - xfree(s1); - return combo_string; -} - -int DoGetString(__GLXclientState *cl, GLbyte *pc, GLboolean need_swap) -{ - ClientPtr client; - __GLXcontext *cx; - GLenum name; - const char *string; - __GLX_DECLARE_SWAP_VARIABLES; - int error; - char *buf = NULL, *buf1 = NULL; - GLint length = 0; - - /* If the client has the opposite byte order, swap the contextTag and - * the name. - */ - if ( need_swap ) { - __GLX_SWAP_INT(pc + 4); - __GLX_SWAP_INT(pc + __GLX_SINGLE_HDR_SIZE); - } - - cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); - if (!cx) { - return error; - } - - pc += __GLX_SINGLE_HDR_SIZE; - name = *(GLenum *)(pc + 0); - string = (const char *) CALL_GetString( GET_DISPATCH(), (name) ); - client = cl->client; - - if (string == NULL) - string = ""; - - /* - ** Restrict extensions to those that are supported by both the - ** implementation and the connection. That is, return the - ** intersection of client, server, and core extension strings. - */ - if (name == GL_EXTENSIONS) { - buf1 = __glXcombine_strings(string, - cl->GLClientextensions); - buf = __glXcombine_strings(buf1, - cx->pGlxScreen->GLextensions); - if (buf1 != NULL) { - xfree(buf1); - } - string = buf; - } - else if ( name == GL_VERSION ) { - if ( atof( string ) > atof( GLServerVersion ) ) { - buf = xalloc( strlen( string ) + strlen( GLServerVersion ) + 4 ); - if ( buf == NULL ) { - string = GLServerVersion; - } - else { - sprintf( buf, "%s (%s)", GLServerVersion, string ); - string = buf; - } - } - } - if (string) { - length = strlen((const char *) string) + 1; - } - - __GLX_BEGIN_REPLY(length); - __GLX_PUT_SIZE(length); - - if ( need_swap ) { - __GLX_SWAP_REPLY_SIZE(); - __GLX_SWAP_REPLY_HEADER(); - } - - __GLX_SEND_HEADER(); - WriteToClient(client, length, (char *) string); - if (buf != NULL) - xfree(buf); - - return Success; -} - -int __glXDisp_GetString(__GLXclientState *cl, GLbyte *pc) -{ - return DoGetString(cl, pc, GL_FALSE); -} +/* + * 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 +#else + +#include "glheader.h" + +#endif + +#include +#include +#include + +#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 __glXDisp_FeedbackBuffer(__GLXclientState *cl, GLbyte *pc) +{ + GLsizei size; + GLenum type; + __GLXcontext *cx; + int error; + + cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); + if (!cx) { + return error; + } + + pc += __GLX_SINGLE_HDR_SIZE; + 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) ); + __GLX_NOTE_UNFLUSHED_CMDS(cx); + return Success; +} + +int __glXDisp_SelectBuffer(__GLXclientState *cl, GLbyte *pc) +{ + __GLXcontext *cx; + GLsizei size; + int error; + + cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); + if (!cx) { + return error; + } + + pc += __GLX_SINGLE_HDR_SIZE; + 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) ); + __GLX_NOTE_UNFLUSHED_CMDS(cx); + return Success; +} + +int __glXDisp_RenderMode(__GLXclientState *cl, GLbyte *pc) +{ + ClientPtr client; + xGLXRenderModeReply reply; + __GLXcontext *cx; + GLint nitems=0, retBytes=0, retval, newModeCheck; + GLubyte *retBuffer = NULL; + GLenum newMode; + int error; + + cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); + if (!cx) { + return error; + } + + pc += __GLX_SINGLE_HDR_SIZE; + 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; + 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; + 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.length = nitems; + reply.type = X_Reply; + reply.sequenceNumber = client->sequence; + reply.retval = retval; + reply.size = nitems; + reply.newMode = newMode; + WriteToClient(client, sz_xGLXRenderModeReply, (char *)&reply); + if (retBytes) { + WriteToClient(client, retBytes, (char *)retBuffer); + } + return Success; +} + +int __glXDisp_Flush(__GLXclientState *cl, GLbyte *pc) +{ + __GLXcontext *cx; + int error; + + cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); + if (!cx) { + return error; + } + + CALL_Flush( GET_DISPATCH(), () ); + __GLX_NOTE_FLUSHED_CMDS(cx); + return Success; +} + +int __glXDisp_Finish(__GLXclientState *cl, GLbyte *pc) +{ + __GLXcontext *cx; + ClientPtr client; + int error; + + cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); + if (!cx) { + return error; + } + + /* Do a local glFinish */ + CALL_Finish( GET_DISPATCH(), () ); + __GLX_NOTE_FLUSHED_CMDS(cx); + + /* Send empty reply packet to indicate finish is finished */ + client = cl->client; + __GLX_BEGIN_REPLY(0); + __GLX_SEND_HEADER(); + return Success; +} + +#define SEPARATOR " " + +char *__glXcombine_strings(const char *cext_string, const char *sext_string) +{ + size_t clen, slen; + char *combo_string, *token, *s1; + const char *s2, *end; + + /* safeguard to prevent potentially fatal errors in the string functions */ + if (!cext_string) + cext_string = ""; + if (!sext_string) + sext_string = ""; + + /* + ** String can't be longer than min(cstring, sstring) + ** pull tokens out of shortest string + ** include space in combo_string for final separator and null terminator + */ + clen = strlen(cext_string); + slen = strlen(sext_string); + if (clen > slen) { + combo_string = (char *) malloc(slen + 2); + s1 = (char *) malloc(slen + 2); + if (s1) strcpy(s1, sext_string); + s2 = cext_string; + } else { + combo_string = (char *) malloc(clen + 2); + s1 = (char *) malloc(clen + 2); + if (s1) strcpy(s1, cext_string); + s2 = sext_string; + } + if (!combo_string || !s1) { + if (combo_string) + free(combo_string); + if (s1) + free(s1); + return NULL; + } + combo_string[0] = '\0'; + + /* Get first extension token */ + token = strtok( s1, SEPARATOR); + while ( token != NULL ) { + + /* + ** if token in second string then save it + ** beware of extension names which are prefixes of other extension names + */ + const char *p = s2; + end = p + strlen(p); + while (p < end) { + size_t n = strcspn(p, SEPARATOR); + if ((strlen(token) == n) && (strncmp(token, p, n) == 0)) { + combo_string = strcat(combo_string, token); + combo_string = strcat(combo_string, SEPARATOR); + } + p += (n + 1); + } + + /* Get next extension token */ + token = strtok( NULL, SEPARATOR); + } + free(s1); + return combo_string; +} + +int DoGetString(__GLXclientState *cl, GLbyte *pc, GLboolean need_swap) +{ + ClientPtr client; + __GLXcontext *cx; + GLenum name; + const char *string; + __GLX_DECLARE_SWAP_VARIABLES; + int error; + char *buf = NULL, *buf1 = NULL; + GLint length = 0; + + /* If the client has the opposite byte order, swap the contextTag and + * the name. + */ + if ( need_swap ) { + __GLX_SWAP_INT(pc + 4); + __GLX_SWAP_INT(pc + __GLX_SINGLE_HDR_SIZE); + } + + cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error); + if (!cx) { + return error; + } + + pc += __GLX_SINGLE_HDR_SIZE; + name = *(GLenum *)(pc + 0); + string = (const char *) CALL_GetString( GET_DISPATCH(), (name) ); + client = cl->client; + + if (string == NULL) + string = ""; + + /* + ** Restrict extensions to those that are supported by both the + ** implementation and the connection. That is, return the + ** intersection of client, server, and core extension strings. + */ + if (name == GL_EXTENSIONS) { + buf1 = __glXcombine_strings(string, + cl->GLClientextensions); + buf = __glXcombine_strings(buf1, + cx->pGlxScreen->GLextensions); + if (buf1 != NULL) { + free(buf1); + } + string = buf; + } + else if ( name == GL_VERSION ) { + if ( atof( string ) > atof( GLServerVersion ) ) { + buf = malloc( strlen( string ) + strlen( GLServerVersion ) + 4 ); + if ( buf == NULL ) { + string = GLServerVersion; + } + else { + sprintf( buf, "%s (%s)", GLServerVersion, string ); + string = buf; + } + } + } + if (string) { + length = strlen((const char *) string) + 1; + } + + __GLX_BEGIN_REPLY(length); + __GLX_PUT_SIZE(length); + + if ( need_swap ) { + __GLX_SWAP_REPLY_SIZE(); + __GLX_SWAP_REPLY_HEADER(); + } + + __GLX_SEND_HEADER(); + WriteToClient(client, length, (char *) string); + if (buf != NULL) + free(buf); + + return Success; +} + +int __glXDisp_GetString(__GLXclientState *cl, GLbyte *pc) +{ + return DoGetString(cl, pc, GL_FALSE); +} -- cgit v1.2.3