IABSD.fr/xenocara/driver/xf86-video-vmware/src/vmware_common.c

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• Author : matthieu
  Date : 2012-05-07 09:42:34
  Hash : 83fcba7e
  Message : Files missed in upgrade to vmware 12.0.2

• driver/xf86-video-vmware/src/vmware_common.c

• /*
   * Copyright 2011 VMWare, 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, sub license, 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 and this permission notice (including the
   * next paragraph) 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 NON-INFRINGEMENT.
   * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
   *
   * Author: Unknown at vmware
   */
  #ifdef HAVE_CONFIG_H
  #include "config.h"
  #endif
  
  #include <xf86.h>
  #include "vmware_common.h"
  
  #ifndef HAVE_XORG_SERVER_1_5_0
  #include <xf86_ansic.h>
  #include <xf86_libc.h>
  #endif
  
  static int
  VMWAREParseTopologyElement(ScrnInfoPtr pScrn,
                             unsigned int output,
                             const char *elementName,
                             const char *element,
                             const char *expectedTerminators,
                             Bool needTerminator,
                             unsigned int *outValue)
  {
     char buf[10] = {0, };
     size_t i = 0;
     int retVal = -1;
     const char *str = element;
  
     for (i = 0; str[i] >= '0' && str[i] <= '9'; i++);
     if (i == 0) {
        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Output %u: unable to parse %s.\n",
                   output, elementName);
        goto exit;
     }
  
     strncpy(buf, str, i);
     *outValue = atoi(buf);
  
     if (*outValue > (unsigned short)-1) {
        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Output %u: %s must be less than %hu.\n",
                   output, elementName, (unsigned short)-1);
        goto exit;
     }
  
     str += i;
  
     if (needTerminator || str[0] != '\0') {
        Bool unexpected = TRUE;
  
        for (i = 0; i < strlen(expectedTerminators); i++) {
           if (str[0] == expectedTerminators[i]) {
              unexpected = FALSE;
           }
        }
  
        if (unexpected) {
           xf86DrvMsg(pScrn->scrnIndex, X_INFO,
                      "Output %u: unexpected character '%c' after %s.\n",
                      output, str[0], elementName);
           goto exit;
        } else {
           str++;
        }
     }
  
     retVal = str - element;
  
   exit:
     return retVal;
  }
  
  xXineramaScreenInfo *
  VMWAREParseTopologyString(ScrnInfoPtr pScrn,
                            const char *topology,
                            unsigned int *retNumOutputs,
  			  const char info[])
  {
     xXineramaScreenInfo *extents = NULL;
     unsigned int numOutputs = 0;
     const char *str = topology;
  
     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Parsing %s topology: Starting...\n",
  	      info);
  
     do {
        unsigned int x, y, width, height;
        int i;
  
        i = VMWAREParseTopologyElement(pScrn, numOutputs, "width", str, "xX", TRUE, &width);
        if (i == -1) {
           goto error;
        }
        str += i;
  
        i = VMWAREParseTopologyElement(pScrn, numOutputs, "height", str, "+", TRUE, &height);
        if (i == -1) {
           goto error;
        }
        str += i;
  
        i= VMWAREParseTopologyElement(pScrn, numOutputs, "X offset", str, "+", TRUE, &x);
        if (i == -1) {
           goto error;
        }
        str += i;
  
        i = VMWAREParseTopologyElement(pScrn, numOutputs, "Y offset", str, ";", FALSE, &y);
        if (i == -1) {
           goto error;
        }
        str += i;
  
        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Output %u: %ux%u+%u+%u\n",
                   numOutputs, width, height, x, y);
  
        numOutputs++;
        extents = realloc(extents, numOutputs * sizeof (xXineramaScreenInfo));
        extents[numOutputs - 1].x_org = x;
        extents[numOutputs - 1].y_org = y;
        extents[numOutputs - 1].width = width;
        extents[numOutputs - 1].height = height;
     } while (*str != 0);
  
     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Parsing %s topology: Succeeded.\n",
  	      info);
     goto exit;
  
   error:
     xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Parsing %s topology: Failed.\n",
  	      info);
  
     free(extents);
     extents = NULL;
     numOutputs = 0;
  
   exit:
     *retNumOutputs = numOutputs;
     return extents;
  }