150 lines
4.5 KiB
C
150 lines
4.5 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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* THE COPYRIGHT HOLDERS, THE AUTHORS, AND/OR THEIR SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* \file indirect_program.c
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* Hand-coded routines needed to support programmable pipeline extensions.
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*
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* \author Ian Romanick <idr@us.ibm.com>
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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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#include "glapitable.h"
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#include "glapi.h"
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#include "glthread.h"
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#include "dispatch.h"
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#include "glapioffsets.h"
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static int DoGetProgramString(struct __GLXclientStateRec *cl, GLbyte *pc,
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unsigned get_programiv_offset, unsigned get_program_string_offset,
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Bool do_swap);
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/**
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* Handle both types of glGetProgramString calls.
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*
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* This single function handles both \c glGetProgramStringARB and
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* \c glGetProgramStringNV. The dispatch offsets for the functions to use
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* for \c glGetProgramivARB and \c glGetProgramStringARB are passed in by the
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* caller. These can be the offsets of either the ARB versions or the NV
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* versions.
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*/
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int DoGetProgramString(struct __GLXclientStateRec *cl, GLbyte *pc,
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unsigned get_programiv_offset,
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unsigned get_program_string_offset,
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Bool do_swap)
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{
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xGLXVendorPrivateWithReplyReq * const req =
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(xGLXVendorPrivateWithReplyReq *) 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_VENDPRIV_HDR_SIZE;
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if (cx != NULL) {
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GLenum target;
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GLenum pname;
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GLint compsize = 0;
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char *answer = NULL, answerBuffer[200];
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if (do_swap) {
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target = (GLenum) bswap_32(*(int *)(pc + 0));
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pname = (GLenum) bswap_32(*(int *)(pc + 4));
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}
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else {
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target = *(GLenum *)(pc + 0);
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pname = *(GLuint *)(pc + 4);
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}
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/* The value of the GL_PROGRAM_LENGTH_ARB and GL_PROGRAM_LENGTH_NV
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* enumerants is the same.
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*/
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CALL_by_offset(GET_DISPATCH(),
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(void (GLAPIENTRYP)(GLuint, GLenum, GLint *)),
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get_programiv_offset,
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(target, GL_PROGRAM_LENGTH_ARB, &compsize));
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if (compsize != 0) {
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__GLX_GET_ANSWER_BUFFER(answer,cl,compsize,1);
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__glXClearErrorOccured();
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CALL_by_offset(GET_DISPATCH(),
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(void (GLAPIENTRYP)(GLuint, GLenum, GLubyte *)),
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get_program_string_offset,
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(target, pname, 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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} 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 __glXDisp_GetProgramStringARB(struct __GLXclientStateRec *cl, GLbyte *pc)
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{
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return DoGetProgramString(cl, pc, _gloffset_GetProgramivARB,
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_gloffset_GetProgramStringARB, False);
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}
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int __glXDispSwap_GetProgramStringARB(struct __GLXclientStateRec *cl, GLbyte *pc)
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{
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return DoGetProgramString(cl, pc, _gloffset_GetProgramivARB,
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_gloffset_GetProgramStringARB, True);
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}
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int __glXDisp_GetProgramStringNV(struct __GLXclientStateRec *cl, GLbyte *pc)
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{
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return DoGetProgramString(cl, pc, _gloffset_GetProgramivNV,
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_gloffset_GetProgramStringNV, False);
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}
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int __glXDispSwap_GetProgramStringNV(struct __GLXclientStateRec *cl, GLbyte *pc)
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{
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return DoGetProgramString(cl, pc, _gloffset_GetProgramivNV,
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_gloffset_GetProgramStringNV, True);
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}
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