xorg-server-1.4/GL/glx/indirect_texture_compression.c

   1 /*
   2  * (C) Copyright IBM Corporation 2005, 2006
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  19  * IBM,
  20  * AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  21  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  22  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #define NEED_REPLIES
  27 #ifdef HAVE_DIX_CONFIG_H
  28 #include <dix-config.h>
  29 #endif
  30
  31 #include "glxserver.h"
  32 #include "glxbyteorder.h"
  33 #include "glxext.h"
  34 #include "singlesize.h"
  35 #include "unpack.h"
  36 #include "indirect_size_get.h"
  37 #include "indirect_dispatch.h"
  38 #include "glapitable.h"
  39 #include "glapi.h"
  40 #include "glthread.h"
  41 #include "dispatch.h"
  42
  43 int __glXDisp_GetCompressedTexImageARB(struct __GLXclientStateRec *cl, GLbyte *pc)
  44 {
  45     xGLXSingleReq * const req = (xGLXSingleReq *) pc;
  46     int error;
  47     __GLXcontext * const cx = __glXForceCurrent( cl, req->contextTag, & error );
  48     ClientPtr client = cl->client;
  49
  50
  51     pc += __GLX_SINGLE_HDR_SIZE;
  52     if ( cx != NULL ) {
  53         const GLenum target = *(GLenum *)(pc + 0);
  54         const GLint  level  = *(GLint  *)(pc + 4);
  55         GLint compsize = 0;
  56         char *answer, answerBuffer[200];
  57
  58         CALL_GetTexLevelParameteriv(GET_DISPATCH(), (target, level, GL_TEXTURE_COMPRESSED_IMAGE_SIZE, &compsize));
  59
  60         if ( compsize != 0 ) {
  61             __GLX_GET_ANSWER_BUFFER(answer,cl,compsize,1);
  62             __glXClearErrorOccured();
  63             CALL_GetCompressedTexImageARB(GET_DISPATCH(), (target, level, answer));
  64         }
  65
  66         if (__glXErrorOccured()) {
  67             __GLX_BEGIN_REPLY(0);
  68             __GLX_SEND_HEADER();
  69         } else {
  70             __GLX_BEGIN_REPLY(compsize);
  71             ((xGLXGetTexImageReply *)&__glXReply)->width = compsize;
  72             __GLX_SEND_HEADER();
  73             __GLX_SEND_VOID_ARRAY(compsize);
  74         }
  75
  76         error = Success;
  77     }
  78
  79     return error;
  80 }
  81
  82
  83 int __glXDispSwap_GetCompressedTexImageARB(struct __GLXclientStateRec *cl, GLbyte *pc)
  84 {
  85     xGLXSingleReq * const req = (xGLXSingleReq *) pc;
  86     int error;
  87     __GLXcontext * const cx = __glXForceCurrent( cl, bswap_32( req->contextTag ), & error );
  88     ClientPtr client = cl->client;
  89
  90
  91     pc += __GLX_SINGLE_HDR_SIZE;
  92     if ( cx != NULL ) {
  93         const GLenum target = (GLenum) bswap_32( *(int *)(pc + 0) );
  94         const GLint  level =  (GLint ) bswap_32( *(int *)(pc + 4) );
  95         GLint compsize = 0;
  96         char *answer, answerBuffer[200];
  97
  98         CALL_GetTexLevelParameteriv(GET_DISPATCH(), (target, level, GL_TEXTURE_COMPRESSED_IMAGE_SIZE, &compsize));
  99
 100         if ( compsize != 0 ) {
 101             __GLX_GET_ANSWER_BUFFER(answer,cl,compsize,1);
 102             __glXClearErrorOccured();
 103             CALL_GetCompressedTexImageARB(GET_DISPATCH(), (target, level, answer));
 104         }
 105
 106         if (__glXErrorOccured()) {
 107             __GLX_BEGIN_REPLY(0);
 108             __GLX_SEND_HEADER();
 109         } else {
 110             __GLX_BEGIN_REPLY(compsize);
 111             ((xGLXGetTexImageReply *)&__glXReply)->width = compsize;
 112             __GLX_SEND_HEADER();
 113             __GLX_SEND_VOID_ARRAY(compsize);
 114         }
 115
 116         error = Success;
 117     }
 118
 119     return error;
 120 }