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/*
* File: glwrap.c
* Purpose: Wrapper functions for Win32 OpenGL functions
*
* Authors: Alexander Gottwald
* Jon TURNEY
*
* Copyright (c) Jon TURNEY 2009
* Copyright (c) Alexander Gottwald 2004
*
*
* 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>
#include <GL/gl.h>
#include <GL/glext.h>
#include <glx/glxserver.h>
#include <glx/glxext.h>
#include <glx/glapi.h>
#include <glx/dispatch.h>
#include <glwindows.h>
static unsigned int glWinIndirectProcCalls = 0;
static unsigned int glWinDirectProcCalls = 0;
void
glWinCallDelta(void)
{
static unsigned int glWinIndirectProcCallsLast = 0;
static unsigned int glWinDirectProcCallsLast = 0;
if ((glWinIndirectProcCalls != glWinIndirectProcCallsLast) ||
(glWinDirectProcCalls != glWinDirectProcCallsLast))
{
if (glxWinDebugSettings.enableTrace)
{
ErrorF("after %d direct and %d indirect GL calls\n",
glWinDirectProcCalls - glWinDirectProcCallsLast,
glWinIndirectProcCalls - glWinIndirectProcCallsLast);
}
glWinDirectProcCallsLast = glWinDirectProcCalls;
glWinIndirectProcCallsLast = glWinIndirectProcCalls;
}
}
#define RESOLVE_RET(procname, symbol, retval) \
static Bool init = TRUE; \
static __stdcall procname proc = NULL; \
if (init) { \
proc = (procname)wglGetProcAddress(symbol); \
init = FALSE; \
if (proc == NULL) { \
ErrorF("glwrap: Can't resolve \"%s\"\n", symbol); \
} else \
ErrorF("glwrap: Resolved \"%s\"\n", symbol); \
} \
if (proc == NULL) { \
__glXErrorCallBack(0); \
return retval; \
} \
glWinIndirectProcCalls++;
#define RESOLVE(procname, symbol) RESOLVE_RET(procname, symbol,)
/*
* GL dispatch table debugging
*/
static void
warn_func(void * ctx, const char *format, ...)
{
va_list v;
va_start(v, format);
VErrorF(format, v);
va_end(v);
ErrorF("\n");
}
static void
gl_dispatch_debugging(void)
{
_glapi_set_warning_func(warn_func);
_glapi_noop_enable_warnings(TRUE);
}
/*
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 dispatch table setup function
*/
#include "generated_gl_wrappers.c"
/*
Special non-static wrapper for glGetString for debug output
*/
const GLubyte* glGetStringWrapperNonstatic(GLenum name)
{
return glGetString(name);
}
/*
Special non-static wrapper for glAddSwapHintRectWIN for copySubBuffers
*/
typedef void (__stdcall *PFNGLADDSWAPHINTRECTWIN)(GLint x, GLint y, GLsizei width, GLsizei height);
void glAddSwapHintRectWINWrapperNonstatic(GLint x, GLint y, GLsizei width, GLsizei height)
{
RESOLVE(PFNGLADDSWAPHINTRECTWIN, "glAddSwapHintRectWIN");
proc(x, y, width, height);
}
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