xserver

xserver with xephyr scale patch
git clone https://git.neptards.moe/u3shit/xserver.git
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indirect_texture_compression.c (4318B)

      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 #ifdef HAVE_DIX_CONFIG_H
     27 #include <dix-config.h>
     28 #endif
     29 
     30 #include "glxserver.h"
     31 #include "glxbyteorder.h"
     32 #include "glxext.h"
     33 #include "singlesize.h"
     34 #include "unpack.h"
     35 #include "indirect_size_get.h"
     36 #include "indirect_dispatch.h"
     37 
     38 int
     39 __glXDisp_GetCompressedTexImage(struct __GLXclientStateRec *cl, GLbyte * pc)
     40 {
     41     xGLXSingleReq *const req = (xGLXSingleReq *) pc;
     42     int error;
     43     __GLXcontext *const cx = __glXForceCurrent(cl, req->contextTag, &error);
     44     ClientPtr client = cl->client;
     45 
     46     REQUEST_FIXED_SIZE(xGLXSingleReq, 8);
     47 
     48     pc += __GLX_SINGLE_HDR_SIZE;
     49     if (cx != NULL) {
     50         const GLenum target = *(GLenum *) (pc + 0);
     51         const GLint level = *(GLint *) (pc + 4);
     52         GLint compsize = 0;
     53         char *answer = NULL, answerBuffer[200];
     54         xGLXSingleReply reply = { 0, };
     55 
     56         glGetTexLevelParameteriv(target, level, GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
     57                                  &compsize);
     58 
     59         if (compsize != 0) {
     60             PFNGLGETCOMPRESSEDTEXIMAGEARBPROC GetCompressedTexImageARB =
     61                 __glGetProcAddress("glGetCompressedTexImageARB");
     62             __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
     63             __glXClearErrorOccured();
     64             GetCompressedTexImageARB(target, level, answer);
     65         }
     66 
     67         if (__glXErrorOccured()) {
     68             __GLX_BEGIN_REPLY(0);
     69             __GLX_SEND_HEADER();
     70         }
     71         else {
     72             __GLX_BEGIN_REPLY(compsize);
     73             ((xGLXGetTexImageReply *) &reply)->width = compsize;
     74             __GLX_SEND_HEADER();
     75             __GLX_SEND_VOID_ARRAY(compsize);
     76         }
     77 
     78         error = Success;
     79     }
     80 
     81     return error;
     82 }
     83 
     84 int
     85 __glXDispSwap_GetCompressedTexImage(struct __GLXclientStateRec *cl, GLbyte * pc)
     86 {
     87     xGLXSingleReq *const req = (xGLXSingleReq *) pc;
     88     int error;
     89     __GLXcontext *const cx =
     90         __glXForceCurrent(cl, bswap_32(req->contextTag), &error);
     91     ClientPtr client = cl->client;
     92 
     93     REQUEST_FIXED_SIZE(xGLXSingleReq, 8);
     94 
     95     pc += __GLX_SINGLE_HDR_SIZE;
     96     if (cx != NULL) {
     97         const GLenum target = (GLenum) bswap_32(*(int *) (pc + 0));
     98         const GLint level = (GLint) bswap_32(*(int *) (pc + 4));
     99         GLint compsize = 0;
    100         char *answer = NULL, answerBuffer[200];
    101         xGLXSingleReply reply = { 0, };
    102 
    103         glGetTexLevelParameteriv(target, level, GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
    104                                  &compsize);
    105 
    106         if (compsize != 0) {
    107             PFNGLGETCOMPRESSEDTEXIMAGEARBPROC GetCompressedTexImageARB =
    108                 __glGetProcAddress("glGetCompressedTexImageARB");
    109             __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
    110             __glXClearErrorOccured();
    111             GetCompressedTexImageARB(target, level, answer);
    112         }
    113 
    114         if (__glXErrorOccured()) {
    115             __GLX_BEGIN_REPLY(0);
    116             __GLX_SEND_HEADER();
    117         }
    118         else {
    119             __GLX_BEGIN_REPLY(compsize);
    120             ((xGLXGetTexImageReply *) &reply)->width = compsize;
    121             __GLX_SEND_HEADER();
    122             __GLX_SEND_VOID_ARRAY(compsize);
    123         }
    124 
    125         error = Success;
    126     }
    127 
    128     return error;
    129 }