87c4551c9c
In theory, the linux libGL ABI exposes just GL 1.2 plus GLX 1.3. But, thanks to libglapi, we're letting glGetCompressedTexImageARB() be exposed too. The GLX code was inappropriately relying on it by using GL_GLEXT_PROTOTYPES. Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com>
124 lines
4.1 KiB
C
124 lines
4.1 KiB
C
/*
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* (C) Copyright IBM Corporation 2005, 2006
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sub license,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* IBM,
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* AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include "glxserver.h"
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#include "glxbyteorder.h"
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#include "glxext.h"
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#include "singlesize.h"
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#include "unpack.h"
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#include "indirect_size_get.h"
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#include "indirect_dispatch.h"
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int
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__glXDisp_GetCompressedTexImage(struct __GLXclientStateRec *cl, GLbyte * pc)
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{
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xGLXSingleReq *const req = (xGLXSingleReq *) pc;
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int error;
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__GLXcontext *const cx = __glXForceCurrent(cl, req->contextTag, &error);
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ClientPtr client = cl->client;
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pc += __GLX_SINGLE_HDR_SIZE;
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if (cx != NULL) {
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const GLenum target = *(GLenum *) (pc + 0);
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const GLint level = *(GLint *) (pc + 4);
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GLint compsize = 0;
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char *answer = NULL, answerBuffer[200];
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glGetTexLevelParameteriv(target, level, GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
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&compsize);
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if (compsize != 0) {
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PFNGLGETCOMPRESSEDTEXIMAGEARBPROC GetCompressedTexImageARB =
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__glGetProcAddress("glGetCompressedTexImageARB");
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__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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__glXClearErrorOccured();
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GetCompressedTexImageARB(target, level, answer);
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}
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if (__glXErrorOccured()) {
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__GLX_BEGIN_REPLY(0);
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__GLX_SEND_HEADER();
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}
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else {
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__GLX_BEGIN_REPLY(compsize);
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((xGLXGetTexImageReply *) &__glXReply)->width = compsize;
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__GLX_SEND_HEADER();
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__GLX_SEND_VOID_ARRAY(compsize);
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}
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error = Success;
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}
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return error;
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}
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int
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__glXDispSwap_GetCompressedTexImage(struct __GLXclientStateRec *cl, GLbyte * pc)
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{
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xGLXSingleReq *const req = (xGLXSingleReq *) pc;
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int error;
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__GLXcontext *const cx =
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__glXForceCurrent(cl, bswap_32(req->contextTag), &error);
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ClientPtr client = cl->client;
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pc += __GLX_SINGLE_HDR_SIZE;
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if (cx != NULL) {
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const GLenum target = (GLenum) bswap_32(*(int *) (pc + 0));
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const GLint level = (GLint) bswap_32(*(int *) (pc + 4));
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GLint compsize = 0;
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char *answer = NULL, answerBuffer[200];
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glGetTexLevelParameteriv(target, level, GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
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&compsize);
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if (compsize != 0) {
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PFNGLGETCOMPRESSEDTEXIMAGEARBPROC GetCompressedTexImageARB =
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__glGetProcAddress("glGetCompressedTexImageARB");
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__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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__glXClearErrorOccured();
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GetCompressedTexImageARB(target, level, answer);
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}
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if (__glXErrorOccured()) {
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__GLX_BEGIN_REPLY(0);
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__GLX_SEND_HEADER();
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}
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else {
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__GLX_BEGIN_REPLY(compsize);
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((xGLXGetTexImageReply *) &__glXReply)->width = compsize;
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__GLX_SEND_HEADER();
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__GLX_SEND_VOID_ARRAY(compsize);
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}
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error = Success;
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}
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return error;
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}
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