janwas
78c751aff6
file: now provides a much more efficient alternative to file_enum that does not sort all files (this was a problem for check_if_oal_dll which was scanning the entire system32 dir) - use the same DirEnt struct for file and VFS due to clever name pointer trick. - wposix: avoid malloc for most opendir() and fix mmap() bugs (thanks to Philip for noticing+reporting them) - VFS: was getting too large to manage, now split into an additional file - WIP: much more efficient mounting; supports other mount sources than file or zip (e.g. if we want to add network files); clean separation between VFS submodules; dox; beginning of thread locking. This was SVN commit r2589.
144 lines
3.5 KiB
C
Executable File
144 lines
3.5 KiB
C
Executable File
#ifndef __OGL_H__
|
|
#define __OGL_H__
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#if OS_WIN
|
|
#include "sysdep/win/wgl.h"
|
|
#endif
|
|
|
|
|
|
//
|
|
// bring in the platform's OpenGL headers (with fixes, if necessary)
|
|
//
|
|
|
|
#ifdef __APPLE__
|
|
# include <OpenGL/gl.h>
|
|
# include <OpenGL/glu.h>
|
|
#else
|
|
# include <GL/gl.h>
|
|
# include <GL/glu.h>
|
|
#endif
|
|
|
|
// if gl.h provides real prototypes for 1.2 / 1.3 functions,
|
|
// exclude the corresponding function pointers in glext_funcs.h
|
|
#ifdef GL_VERSION_1_2
|
|
#define REAL_GL_1_2
|
|
#endif
|
|
#ifdef GL_VERSION_1_3
|
|
#define REAL_GL_1_3
|
|
#endif
|
|
|
|
#undef GL_GLEXT_PROTOTYPES
|
|
#ifdef __APPLE__
|
|
# include <OpenGL/glext.h>
|
|
#else
|
|
# include <GL/glext.h>
|
|
# if OS_WIN
|
|
# include <GL/wglext.h>
|
|
# endif
|
|
#endif
|
|
|
|
#define GL_TEXTURE_IMAGE_SIZE_ARB 0x86A0
|
|
|
|
|
|
//
|
|
// extensions
|
|
//
|
|
|
|
// check if the extension <ext> is supported by the OpenGL implementation.
|
|
// takes subsequently added core support for some extensions into account.
|
|
extern bool oglHaveExtension(const char* ext);
|
|
|
|
// check if the OpenGL implementation is at least at <version>.
|
|
// (format: "%d.%d" major minor)
|
|
extern bool oglHaveVersion(const char* version);
|
|
|
|
// check if all given extension strings (passed as const char* parameters,
|
|
// terminated by a 0 pointer) are supported by the OpenGL implementation,
|
|
// as determined by oglHaveExtension.
|
|
// returns 0 if all are present; otherwise, the first extension in the
|
|
// list that's not supported (useful for reporting errors).
|
|
//
|
|
// note: dummy parameter is necessary to access parameter va_list.
|
|
//
|
|
// rationale: see source.
|
|
extern const char* oglHaveExtensions(int dummy, ...);
|
|
|
|
// return a C string of unspecified length containing a space-separated
|
|
// list of all extensions the OpenGL implementation advertises.
|
|
// (useful for crash logs).
|
|
extern const char* oglExtList(void);
|
|
|
|
|
|
#if OS_WIN
|
|
# define CALL_CONV __stdcall
|
|
#else
|
|
# define CALL_CONV
|
|
#endif
|
|
|
|
#define FUNC(ret, name, params) extern ret (CALL_CONV *name) params;
|
|
#define FUNC2(ret, nameARB, nameCore, version, params) extern ret (CALL_CONV *nameARB) params;
|
|
#include "glext_funcs.h"
|
|
#undef FUNC2
|
|
#undef FUNC
|
|
|
|
// leave CALL_CONV defined for ogl.cpp
|
|
|
|
|
|
//
|
|
// limit / feature detect
|
|
//
|
|
|
|
extern int ogl_max_tex_size; // [pixels]
|
|
extern int ogl_max_tex_units; // limit on GL_TEXTUREn
|
|
extern int ogl_max_VAR_elements; // GF2: 64K; GF3: 1M
|
|
extern int ogl_tex_compression_supported; // S3TC / DXT{1,3,5}
|
|
|
|
// set detect.cpp gfx_card[] and gfx_drv_ver[].
|
|
// (called by detect.cpp get_gfx_info()).
|
|
//
|
|
// fails if OpenGL not ready for use.
|
|
// gfx_card and gfx_drv_ver are unchanged on failure.
|
|
extern int ogl_get_gfx_info(void);
|
|
|
|
|
|
//
|
|
// misc
|
|
//
|
|
|
|
// in non-release builds, enable oglCheck, which breaks into the debugger
|
|
// if an OpenGL error was raised since the last call.
|
|
// add these calls everywhere to close in on the error cause.
|
|
//
|
|
// reports a bogus invalid_operation error if called before OpenGL is
|
|
// initialized, so don't!
|
|
#ifndef NDEBUG
|
|
extern void oglCheck(void);
|
|
#else
|
|
# define oglCheck()
|
|
#endif
|
|
|
|
// ignore and reset the specified error (as returned by glGetError).
|
|
// any other errors that have occurred are reported as oglCheck would.
|
|
//
|
|
// this is useful for suppressing annoying error messages, e.g.
|
|
// "invalid enum" for GL_CLAMP_TO_EDGE even though we've already
|
|
// warned the user that their OpenGL implementation is too old.
|
|
extern void oglSquelchError(GLenum err_to_ignore);
|
|
|
|
|
|
// call before using any of the above, and after each video mode change.
|
|
//
|
|
// fails if OpenGL not ready for use.
|
|
extern void oglInit(void);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // #ifndef __OGL_H__
|