3265d0c81f
Somehow I'd managed to write this with this dependency missing, so this only works correctly when the generated files already exist and the correct automatic dependencies generated, but fails on a clean build. Including generated files with a .c extension into the sources for a target causes meson to want to compile them (and it seems to be hard to say "make the directory containing this generated file available to include"). So, change the extension of included generated C fragments to .ic Update the autotools build to align. Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/*
|
|
* File: glthunk.c
|
|
* Purpose: cdecl thunk wrapper library for Win32 stdcall OpenGL library
|
|
*
|
|
* Copyright (c) Jon TURNEY 2009,2013
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
// define USE_OPENGL32 makes gl.h declare gl*() function prototypes with stdcall linkage,
|
|
// so our generated wrappers will correctly link with the functions in opengl32.dll
|
|
#define USE_OPENGL32
|
|
|
|
#ifdef HAVE_XWIN_CONFIG_H
|
|
#include <xwin-config.h>
|
|
#endif
|
|
|
|
#include <X11/Xwindows.h>
|
|
|
|
#define GL_GLEXT_LEGACY
|
|
#include <GL/gl.h>
|
|
#undef GL_ARB_imaging
|
|
#undef GL_VERSION_1_3
|
|
#include <GL/glext.h>
|
|
|
|
static PROC
|
|
glWinResolveHelper(PROC * cache, const char *symbol)
|
|
{
|
|
PROC proc = NULL;
|
|
|
|
/* If not yet cached, call wglGetProcAddress */
|
|
if ((*cache) == NULL) {
|
|
proc = wglGetProcAddress(symbol);
|
|
if (proc == NULL) {
|
|
(*cache) = (PROC) - 1;
|
|
}
|
|
else {
|
|
(*cache) = proc;
|
|
}
|
|
}
|
|
/* Cached wglGetProcAddress failure */
|
|
else if ((*cache) == (PROC) - 1) {
|
|
proc = 0;
|
|
}
|
|
/* Cached wglGetProcAddress result */
|
|
else {
|
|
proc = (*cache);
|
|
}
|
|
|
|
return proc;
|
|
}
|
|
|
|
#define RESOLVE_RET(proctype, symbol, retval) \
|
|
static PROC cache = NULL; \
|
|
__stdcall proctype proc = (proctype)glWinResolveHelper(&cache, symbol); \
|
|
if (proc == NULL) { \
|
|
return retval; \
|
|
}
|
|
|
|
#define RESOLVE(proctype, symbol) RESOLVE_RET(proctype, symbol,)
|
|
|
|
#define RESOLVED_PROC(proctype) proc
|
|
|
|
/*
|
|
Include generated cdecl wrappers for stdcall gl*() functions in opengl32.dll
|
|
|
|
OpenGL 1.2 and upward is treated as extensions, function address must
|
|
found using wglGetProcAddress(), but also stdcall so still need wrappers...
|
|
*/
|
|
|
|
#include "generated_gl_thunks.ic"
|