src/video/x11/SDL_x11opengl.c
author Sam Lantinga <slouken@libsdl.org>
Wed, 15 Aug 2007 03:50:49 +0000
changeset 2244 5234868559fa
parent 2243 5523312f311e
child 2320 166400aa33d7
permissions -rw-r--r--
indent
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     1
/*
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     2
    SDL - Simple DirectMedia Layer
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     3
    Copyright (C) 1997-2006 Sam Lantinga
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     4
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     5
    This library is free software; you can redistribute it and/or
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     6
    modify it under the terms of the GNU Lesser General Public
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     7
    License as published by the Free Software Foundation; either
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     8
    version 2.1 of the License, or (at your option) any later version.
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
     9
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    10
    This library is distributed in the hope that it will be useful,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    11
    but WITHOUT ANY WARRANTY; without even the implied warranty of
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    12
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    13
    Lesser General Public License for more details.
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    14
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    15
    You should have received a copy of the GNU Lesser General Public
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    16
    License along with _this library; if not, write to the Free Software
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    17
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    18
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    19
    Sam Lantinga
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    20
    slouken@libsdl.org
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    21
*/
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    22
#include "SDL_config.h"
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    23
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    24
#include "SDL_x11video.h"
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    25
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    26
/* GLX implementation of SDL OpenGL support */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    27
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    28
#if SDL_VIDEO_OPENGL_GLX
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    29
#include "SDL_loadso.h"
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    30
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    31
#if defined(__IRIX__)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    32
/* IRIX doesn't have a GL library versioning system */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    33
#define DEFAULT_OPENGL	"libGL.so"
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    34
#elif defined(__MACOSX__)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    35
#define DEFAULT_OPENGL	"/usr/X11R6/lib/libGL.1.dylib"
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    36
#elif defined(__QNXNTO__)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    37
#define DEFAULT_OPENGL	"libGL.so.3"
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    38
#else
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    39
#define DEFAULT_OPENGL	"libGL.so.1"
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    40
#endif
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    41
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    42
#ifndef GLX_ARB_multisample
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    43
#define GLX_ARB_multisample
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    44
#define GLX_SAMPLE_BUFFERS_ARB             100000
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    45
#define GLX_SAMPLES_ARB                    100001
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    46
#endif
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    47
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    48
#ifndef GLX_EXT_visual_rating
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    49
#define GLX_EXT_visual_rating
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    50
#define GLX_VISUAL_CAVEAT_EXT              0x20
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    51
#define GLX_NONE_EXT                       0x8000
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    52
#define GLX_SLOW_VISUAL_EXT                0x8001
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    53
#define GLX_NON_CONFORMANT_VISUAL_EXT      0x800D
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    54
#endif
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    55
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    56
#define OPENGL_REQUIRS_DLOPEN
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    57
#if defined(OPENGL_REQUIRS_DLOPEN) && defined(SDL_LOADSO_DLOPEN)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    58
#include <dlfcn.h>
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    59
#define GL_LoadObject(X)	dlopen(X, (RTLD_NOW|RTLD_GLOBAL))
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    60
#define GL_LoadFunction		dlsym
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    61
#define GL_UnloadObject		dlclose
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    62
#else
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    63
#define GL_LoadObject	SDL_LoadObject
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    64
#define GL_LoadFunction	SDL_LoadFunction
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    65
#define GL_UnloadObject	SDL_UnloadObject
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    66
#endif
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    67
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    68
int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    69
X11_GL_LoadLibrary(_THIS, const char *path)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    70
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    71
    void *handle;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    72
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    73
    if (_this->gl_config.driver_loaded) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    74
        if (path) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    75
            SDL_SetError("OpenGL library already loaded");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    76
            return -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    77
        } else {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    78
            ++_this->gl_config.driver_loaded;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    79
            return 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    80
        }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    81
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    82
    if (path == NULL) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    83
        path = SDL_getenv("SDL_OPENGL_LIBRARY");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    84
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    85
    if (path == NULL) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    86
        path = DEFAULT_OPENGL;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    87
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    88
    handle = GL_LoadObject(path);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    89
    if (!handle) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    90
        return -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    91
    }
2243
5523312f311e Date: Wed, 15 Aug 2007 01:08:38 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2178
diff changeset
    92
    // LoadLibrary may be called before WindowCreate!
5523312f311e Date: Wed, 15 Aug 2007 01:08:38 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 2178
diff changeset
    93
    X11_GL_Initialize(_this);
2244
Sam Lantinga <slouken@libsdl.org>
parents: 2243
diff changeset
    94
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    95
    /* Load new function pointers */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    96
    _this->gl_data->glXGetProcAddress =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    97
        (void *(*)(const GLubyte *)) GL_LoadFunction(handle,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    98
                                                     "glXGetProcAddressARB");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
    99
    _this->gl_data->glXChooseVisual =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   100
        (XVisualInfo * (*)(Display *, int, int *)) GL_LoadFunction(handle,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   101
                                                                   "glXChooseVisual");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   102
    _this->gl_data->glXCreateContext =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   103
        (GLXContext(*)(Display *, XVisualInfo *, GLXContext, int))
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   104
        GL_LoadFunction(handle, "glXCreateContext");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   105
    _this->gl_data->glXDestroyContext =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   106
        (void (*)(Display *, GLXContext)) GL_LoadFunction(handle,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   107
                                                          "glXDestroyContext");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   108
    _this->gl_data->glXMakeCurrent =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   109
        (int (*)(Display *, GLXDrawable, GLXContext)) GL_LoadFunction(handle,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   110
                                                                      "glXMakeCurrent");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   111
    _this->gl_data->glXSwapBuffers =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   112
        (void (*)(Display *, GLXDrawable)) GL_LoadFunction(handle,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   113
                                                           "glXSwapBuffers");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   114
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   115
    if (!_this->gl_data->glXChooseVisual ||
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   116
        !_this->gl_data->glXCreateContext ||
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   117
        !_this->gl_data->glXDestroyContext ||
1956
ba0d62354872 Simplified driver window creation code.
Sam Lantinga <slouken@libsdl.org>
parents: 1955
diff changeset
   118
        !_this->gl_data->glXMakeCurrent || !_this->gl_data->glXSwapBuffers) {
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   119
        SDL_SetError("Could not retrieve OpenGL functions");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   120
        return -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   121
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   122
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   123
    _this->gl_config.dll_handle = handle;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   124
    SDL_strlcpy(_this->gl_config.driver_path, path,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   125
                SDL_arraysize(_this->gl_config.driver_path));
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   126
    _this->gl_config.driver_loaded = 1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   127
    return 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   128
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   129
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   130
void *
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   131
X11_GL_GetProcAddress(_THIS, const char *proc)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   132
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   133
    void *handle;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   134
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   135
    handle = _this->gl_config.dll_handle;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   136
    if (_this->gl_data->glXGetProcAddress) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   137
        return _this->gl_data->glXGetProcAddress((const GLubyte *) proc);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   138
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   139
    return GL_LoadFunction(handle, proc);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   140
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   141
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   142
static void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   143
X11_GL_UnloadLibrary(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   144
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   145
    if (_this->gl_config.driver_loaded > 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   146
        if (--_this->gl_config.driver_loaded > 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   147
            return;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   148
        }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   149
        GL_UnloadObject(_this->gl_config.dll_handle);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   150
        _this->gl_config.dll_handle = NULL;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   151
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   152
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   153
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   154
static SDL_bool
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   155
HasExtension(const char *extension, const char *extensions)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   156
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   157
    const char *start;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   158
    const char *where, *terminator;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   159
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   160
    /* Extension names should not have spaces. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   161
    where = SDL_strchr(extension, ' ');
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   162
    if (where || *extension == '\0')
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   163
        return SDL_FALSE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   164
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   165
    if (!extensions)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   166
        return SDL_FALSE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   167
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   168
    /* It takes a bit of care to be fool-proof about parsing the
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   169
     * OpenGL extensions string. Don't be fooled by sub-strings,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   170
     * etc. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   171
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   172
    start = extensions;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   173
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   174
    for (;;) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   175
        where = SDL_strstr(start, extension);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   176
        if (!where)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   177
            break;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   178
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   179
        terminator = where + SDL_strlen(extension);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   180
        if (where == start || *(where - 1) == ' ')
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   181
            if (*terminator == ' ' || *terminator == '\0')
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   182
                return SDL_TRUE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   183
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   184
        start = terminator;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   185
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   186
    return SDL_FALSE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   187
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   188
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   189
static void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   190
X11_GL_InitExtensions(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   191
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   192
    Display *display = ((SDL_VideoData *) _this->driverdata)->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   193
    int screen = ((SDL_DisplayData *) SDL_CurrentDisplay.driverdata)->screen;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   194
    XVisualInfo *vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   195
    XSetWindowAttributes xattr;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   196
    Window w;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   197
    GLXContext context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   198
    const char *(*glXQueryExtensionsStringFunc) (Display *, int);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   199
    const char *extensions;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   200
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   201
    vinfo = X11_GL_GetVisual(_this, display, screen);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   202
    if (!vinfo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   203
        return;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   204
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   205
    xattr.background_pixel = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   206
    xattr.border_pixel = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   207
    xattr.colormap =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   208
        XCreateColormap(display, RootWindow(display, screen), vinfo->visual,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   209
                        AllocNone);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   210
    w = XCreateWindow(display, RootWindow(display, screen), 0, 0, 32, 32, 0,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   211
                      vinfo->depth, InputOutput, vinfo->visual,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   212
                      (CWBackPixel | CWBorderPixel | CWColormap), &xattr);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   213
    context = _this->gl_data->glXCreateContext(display, vinfo, NULL, True);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   214
    if (context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   215
        _this->gl_data->glXMakeCurrent(display, w, context);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   216
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   217
    XFree(vinfo);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   218
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   219
    glXQueryExtensionsStringFunc =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   220
        (const char *(*)(Display *, int)) X11_GL_GetProcAddress(_this,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   221
                                                                "glXQueryExtensionsString");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   222
    if (glXQueryExtensionsStringFunc) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   223
        extensions = glXQueryExtensionsStringFunc(display, screen);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   224
    } else {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   225
        extensions = NULL;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   226
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   227
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   228
    /* Check for SGI_swap_control */
2105
12bcd4fd2606 Date: Wed, 23 May 2007 00:39:47 +0300
Ryan C. Gordon <icculus@icculus.org>
parents: 1956
diff changeset
   229
    if (HasExtension("GLX_SGI_swap_control", extensions)) {
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   230
        _this->gl_data->glXSwapIntervalSGI =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   231
            (int (*)(int)) X11_GL_GetProcAddress(_this, "glXSwapIntervalSGI");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   232
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   233
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   234
    /* Check for GLX_MESA_swap_control */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   235
    if (HasExtension("GLX_MESA_swap_control", extensions)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   236
        _this->gl_data->glXSwapIntervalMESA =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   237
            (GLint(*)(unsigned)) X11_GL_GetProcAddress(_this,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   238
                                                       "glXSwapIntervalMESA");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   239
        _this->gl_data->glXGetSwapIntervalMESA =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   240
            (GLint(*)(void)) X11_GL_GetProcAddress(_this,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   241
                                                   "glXGetSwapIntervalMESA");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   242
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   243
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   244
    /* Check for GLX_EXT_visual_rating */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   245
    if (HasExtension("GLX_EXT_visual_rating", extensions)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   246
        _this->gl_data->HAS_GLX_EXT_visual_rating = SDL_TRUE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   247
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   248
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   249
    if (context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   250
        _this->gl_data->glXMakeCurrent(display, None, NULL);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   251
        _this->gl_data->glXDestroyContext(display, context);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   252
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   253
    XDestroyWindow(display, w);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   254
    X11_PumpEvents(_this);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   255
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   256
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   257
int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   258
X11_GL_Initialize(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   259
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   260
    if (_this->gl_data) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   261
        ++_this->gl_data->initialized;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   262
        return 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   263
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   264
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   265
    _this->gl_data =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   266
        (struct SDL_GLDriverData *) SDL_calloc(1,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   267
                                               sizeof(struct
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   268
                                                      SDL_GLDriverData));
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   269
    if (!_this->gl_data) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   270
        SDL_OutOfMemory();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   271
        return -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   272
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   273
    _this->gl_data->initialized = 1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   274
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   275
    if (X11_GL_LoadLibrary(_this, NULL) < 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   276
        return -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   277
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   278
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   279
    /* Initialize extensions */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   280
    X11_GL_InitExtensions(_this);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   281
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   282
    return 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   283
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   284
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   285
void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   286
X11_GL_Shutdown(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   287
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   288
    if (!_this->gl_data || (--_this->gl_data->initialized > 0)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   289
        return;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   290
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   291
1954
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
   292
    /* Don't actually unload the library, since it may have registered
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
   293
     * X11 shutdown hooks, per the notes at:
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
   294
     * http://dri.sourceforge.net/doc/DRIuserguide.html
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
   295
     * //X11_GL_UnloadLibrary(_this);
c20e158a9299 Don't unload the OpenGL library before the X display is closed.
Sam Lantinga <slouken@libsdl.org>
parents: 1953
diff changeset
   296
     */
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   297
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   298
    SDL_free(_this->gl_data);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   299
    _this->gl_data = NULL;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   300
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   301
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   302
XVisualInfo *
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   303
X11_GL_GetVisual(_THIS, Display * display, int screen)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   304
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   305
    XVisualInfo *vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   306
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   307
    /* 64 seems nice. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   308
    int attribs[64];
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   309
    int i;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   310
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   311
    /* Setup our GLX attributes according to the gl_config. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   312
    i = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   313
    attribs[i++] = GLX_RGBA;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   314
    attribs[i++] = GLX_RED_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   315
    attribs[i++] = _this->gl_config.red_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   316
    attribs[i++] = GLX_GREEN_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   317
    attribs[i++] = _this->gl_config.green_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   318
    attribs[i++] = GLX_BLUE_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   319
    attribs[i++] = _this->gl_config.blue_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   320
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   321
    if (_this->gl_config.alpha_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   322
        attribs[i++] = GLX_ALPHA_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   323
        attribs[i++] = _this->gl_config.alpha_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   324
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   325
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   326
    if (_this->gl_config.buffer_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   327
        attribs[i++] = GLX_BUFFER_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   328
        attribs[i++] = _this->gl_config.buffer_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   329
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   330
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   331
    if (_this->gl_config.double_buffer) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   332
        attribs[i++] = GLX_DOUBLEBUFFER;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   333
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   334
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   335
    attribs[i++] = GLX_DEPTH_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   336
    attribs[i++] = _this->gl_config.depth_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   337
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   338
    if (_this->gl_config.stencil_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   339
        attribs[i++] = GLX_STENCIL_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   340
        attribs[i++] = _this->gl_config.stencil_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   341
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   342
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   343
    if (_this->gl_config.accum_red_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   344
        attribs[i++] = GLX_ACCUM_RED_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   345
        attribs[i++] = _this->gl_config.accum_red_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   346
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   347
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   348
    if (_this->gl_config.accum_green_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   349
        attribs[i++] = GLX_ACCUM_GREEN_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   350
        attribs[i++] = _this->gl_config.accum_green_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   351
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   352
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   353
    if (_this->gl_config.accum_blue_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   354
        attribs[i++] = GLX_ACCUM_BLUE_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   355
        attribs[i++] = _this->gl_config.accum_blue_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   356
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   357
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   358
    if (_this->gl_config.accum_alpha_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   359
        attribs[i++] = GLX_ACCUM_ALPHA_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   360
        attribs[i++] = _this->gl_config.accum_alpha_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   361
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   362
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   363
    if (_this->gl_config.stereo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   364
        attribs[i++] = GLX_STEREO;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   365
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   366
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   367
    if (_this->gl_config.multisamplebuffers) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   368
        attribs[i++] = GLX_SAMPLE_BUFFERS_ARB;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   369
        attribs[i++] = _this->gl_config.multisamplebuffers;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   370
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   371
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   372
    if (_this->gl_config.multisamplesamples) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   373
        attribs[i++] = GLX_SAMPLES_ARB;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   374
        attribs[i++] = _this->gl_config.multisamplesamples;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   375
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   376
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   377
    if (_this->gl_config.accelerated >= 0
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   378
        && _this->gl_data->HAS_GLX_EXT_visual_rating) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   379
        attribs[i++] = GLX_VISUAL_CAVEAT_EXT;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   380
        attribs[i++] = GLX_NONE_EXT;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   381
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   382
#ifdef GLX_DIRECT_COLOR         /* Try for a DirectColor visual for gamma support */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   383
    if (!SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR")) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   384
        attribs[i++] = GLX_X_VISUAL_TYPE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   385
        attribs[i++] = GLX_DIRECT_COLOR;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   386
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   387
#endif
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   388
    attribs[i++] = None;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   389
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   390
    vinfo = _this->gl_data->glXChooseVisual(display, screen, attribs);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   391
#ifdef GLX_DIRECT_COLOR
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   392
    if (!vinfo && !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR")) { /* No DirectColor visual?  Try again.. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   393
        attribs[i - 3] = None;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   394
        vinfo = _this->gl_data->glXChooseVisual(display, screen, attribs);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   395
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   396
#endif
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   397
    if (!vinfo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   398
        SDL_SetError("Couldn't find matching GLX visual");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   399
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   400
    return vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   401
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   402
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   403
SDL_GLContext
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   404
X11_GL_CreateContext(_THIS, SDL_Window * window)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   405
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   406
    SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   407
    Display *display = data->videodata->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   408
    int screen =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   409
        ((SDL_DisplayData *) SDL_GetDisplayFromWindow(window)->driverdata)->
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   410
        screen;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   411
    XWindowAttributes xattr;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   412
    XVisualInfo v, *vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   413
    int n;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   414
    GLXContext context = NULL;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   415
1955
Sam Lantinga <slouken@libsdl.org>
parents: 1954
diff changeset
   416
    /* We do this to create a clean separation between X and GLX errors. */
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   417
    XSync(display, False);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   418
    XGetWindowAttributes(display, data->window, &xattr);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   419
    v.screen = screen;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   420
    v.visualid = XVisualIDFromVisual(xattr.visual);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   421
    vinfo = XGetVisualInfo(display, VisualScreenMask | VisualIDMask, &v, &n);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   422
    if (vinfo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   423
        context =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   424
            _this->gl_data->glXCreateContext(display, vinfo, NULL, True);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   425
        XFree(vinfo);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   426
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   427
    XSync(display, False);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   428
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   429
    if (!context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   430
        SDL_SetError("Could not create GL context");
2178
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   431
        return NULL;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   432
    }
2178
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   433
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   434
    if (X11_GL_MakeCurrent(_this, window, context) < 0) {
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   435
        X11_GL_DeleteContext(_this, context);
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   436
        return NULL;
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   437
    }
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   438
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   439
    return context;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   440
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   441
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   442
int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   443
X11_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   444
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   445
    Display *display = ((SDL_VideoData *) _this->driverdata)->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   446
    Window drawable =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   447
        (window ? ((SDL_WindowData *) window->driverdata)->window : None);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   448
    GLXContext glx_context = (GLXContext) context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   449
    int status;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   450
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   451
    status = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   452
    if (!_this->gl_data->glXMakeCurrent(display, drawable, glx_context)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   453
        SDL_SetError("Unable to make GL context current");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   454
        status = -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   455
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   456
    XSync(display, False);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   457
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   458
    return (status);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   459
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   460
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   461
int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   462
X11_GL_SetSwapInterval(_THIS, int interval)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   463
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   464
    int status;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   465
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   466
    if (_this->gl_data->glXSwapIntervalMESA) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   467
        status = _this->gl_data->glXSwapIntervalMESA(interval);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   468
        if (status != 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   469
            SDL_SetError("glxSwapIntervalMESA failed");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   470
            status = -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   471
        }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   472
    } else if (_this->gl_data->glXSwapIntervalSGI) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   473
        status = _this->gl_data->glXSwapIntervalSGI(interval);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   474
        if (status != 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   475
            SDL_SetError("glxSwapIntervalSGI failed");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   476
            status = -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   477
        }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   478
    } else {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   479
        SDL_Unsupported();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   480
        status = -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   481
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   482
    return status;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   483
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   484
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   485
int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   486
X11_GL_GetSwapInterval(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   487
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   488
    if (_this->gl_data->glXGetSwapIntervalMESA) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   489
        return _this->gl_data->glXGetSwapIntervalMESA();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   490
    } else {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   491
        SDL_Unsupported();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   492
        return -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   493
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   494
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   495
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   496
void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   497
X11_GL_SwapWindow(_THIS, SDL_Window * window)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   498
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   499
    SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   500
    Display *display = data->videodata->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   501
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   502
    _this->gl_data->glXSwapBuffers(display, data->window);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   503
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   504
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   505
void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   506
X11_GL_DeleteContext(_THIS, SDL_GLContext context)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   507
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   508
    Display *display = ((SDL_VideoData *) _this->driverdata)->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   509
    GLXContext glx_context = (GLXContext) context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   510
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   511
    _this->gl_data->glXDestroyContext(display, glx_context);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   512
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   513
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   514
#endif /* SDL_VIDEO_OPENGL_GLX */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   515
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   516
/* vi: set ts=4 sw=4 expandtab: */