120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
/*
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gl_stub.c
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Dummy glXGetProcAddressARB function
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Copyright (C)2001 Bill Currie <bill@taniwha.org>
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Copyright (C)2002 Chris Ison wildcode@users.sourceforge.net
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This file is part of Quakeforge and lib3Dfxgl.
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Quakeforge and lib3Dfxgl are free software; you can redistribute them
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and/or modify them under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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Quakeforge and lib3Dfxgl are distributed in the hope that they will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Quakeforge and lib3Dfxgl; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#include <stdlib.h>
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#include "3dfxstub.h"
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#include "QF/GL/defines.h"
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#include "QF/GL/extensions.h"
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#include "QF/GL/types.h"
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#include "QF/hash.h"
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#define QFGL_DONT_NEED(ret, func, params) QFGL_NEED(ret, func, params)
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#undef QFGL_WANT
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#undef QFGL_NEED
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#define QFGL_WANT(ret, name, args) \
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ret GLAPIENTRY norm_##name args;
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#define QFGL_NEED(ret, name, args) \
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ret GLAPIENTRY norm_##name args;
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#include "QF/GL/qf_funcs_list.h"
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#undef QFGL_NEED
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#undef QFGL_WANT
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fxMesaContext norm_fxMesaCreateContext (GLuint win, GrScreenResolution_t res, GrScreenRefresh_t ref, const GLint attribList[]);
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void norm_fxMesaMakeCurrent(fxMesaContext fxMesa);
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void norm_fxMesaDestroyContext(fxMesaContext fxMesa);
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void norm_fxMesaSwapBuffers(void);
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#define QFGL_WANT(ret, name, args) \
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ret GLAPIENTRY trace_##name args;
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#define QFGL_NEED(ret, name, args) \
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ret GLAPIENTRY trace_##name args;
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#include "QF/GL/qf_funcs_list.h"
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#undef QFGL_NEED
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#undef QFGL_WANT
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fxMesaContext trace_fxMesaCreateContext (GLuint win, GrScreenResolution_t res, GrScreenRefresh_t ref, const GLint attribList[]);
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void trace_fxMesaMakeCurrent(fxMesaContext fxMesa);
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void trace_fxMesaDestroyContext(fxMesaContext fxMesa);
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void trace_fxMesaSwapBuffers(void);
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typedef struct {
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const char *name;
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void *norm;
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void *trace;
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} gl_stub_t;
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static gl_stub_t gl_stub_funcs[] = {
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#define QFGL_WANT(ret, name, args) \
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{#name, norm_##name, trace_##name},
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#define QFGL_NEED(ret, name, args) \
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{#name, norm_##name, trace_##name},
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#include "QF/GL/qf_funcs_list.h"
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#undef QFGL_NEED
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#undef QFGL_WANT
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{"fxMesaCreateContext", norm_fxMesaCreateContext, trace_fxMesaCreateContext},
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{"fxMesaMakeCurrent", norm_fxMesaMakeCurrent, trace_fxMesaMakeCurrent},
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{"fxMesaDestroyContext", norm_fxMesaDestroyContext, trace_fxMesaDestroyContext},
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{"fxMesaSwapBuffers", norm_fxMesaSwapBuffers, trace_fxMesaSwapBuffers},
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};
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#define NUM_FUNCS (sizeof (gl_stub_funcs) / sizeof (gl_stub_funcs[0]))
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static int
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cmp (const void *a, const void *b)
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{
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return strcmp (((gl_stub_t *)a)->name, ((gl_stub_t *)b)->name);
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}
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void *
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glXGetProcAddressARB (const GLubyte *procName)
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{
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static int called;
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static int trace;
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gl_stub_t *stub;
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gl_stub_t key;
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if (!called) {
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char *glstub_trace;
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qsort (gl_stub_funcs, NUM_FUNCS, sizeof (gl_stub_t), cmp);
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called = 1;
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glstub_trace = getenv ("GLSTUB_TRACE");
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if (glstub_trace)
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trace = atoi (glstub_trace);
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}
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key.name = procName;
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stub = bsearch (&key, gl_stub_funcs, NUM_FUNCS, sizeof (gl_stub_t), cmp);
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if (!stub)
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return 0;
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return trace ? stub->trace : stub->norm;
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}
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