src/video/x11/SDL_x11opengl.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 10 Mar 2013 09:07:23 -0700
changeset 6988 2aed1beaf5bc
parent 6948 84a71440360d
child 7037 3fedf1f25b94
permissions -rw-r--r--
Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead Lee Salzman When using SDL_GL_CreateContext() to create a >= 3.0 version or core/forward-compatible context, internally glXCreateContextAttribsARB is used. Mesa in particular seems to be having trouble with this call and returning all sorts of errors, so it is dangerous to poll for the highest GL version by using calls to SDL_GL_CreateContext unless you are sure, a priori, that the call will suceed, defeating the point of its use. X11 protocol errors are of the following form, with varying details depending on user, but the cause is always SDL_GL_CreateContext as above... X Error of failed request: GLXBadFBConfig Major opcode of failed request: 153 (GLX) Minor opcode of failed request: 34 () Serial number of failed request: 215 Current serial number in output stream: 221 These sorts of errors can be temporarily filtered out by setting an X11 error handler to catch and ignore them, which is safe with respect to SDL_GL_CreateContext behavior because this function is allowed to return NULL to indicate failure. A patch is attached to do this temporary filtering/catching of errors generated by trying to use glXCreateContextAttribs and friends...
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_config.h"
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#if SDL_VIDEO_DRIVER_X11
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#include "SDL_x11video.h"
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#include "SDL_assert.h"
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/* GLX implementation of SDL OpenGL support */
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#if SDL_VIDEO_OPENGL_GLX
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#include "SDL_loadso.h"
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#include "SDL_x11opengles.h"
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#if defined(__IRIX__)
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/* IRIX doesn't have a GL library versioning system */
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#define DEFAULT_OPENGL	"libGL.so"
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#elif defined(__MACOSX__)
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#define DEFAULT_OPENGL	"/usr/X11R6/lib/libGL.1.dylib"
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#elif defined(__QNXNTO__)
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#define DEFAULT_OPENGL	"libGL.so.3"
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#else
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#define DEFAULT_OPENGL	"libGL.so.1"
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#endif
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#ifndef GLX_NONE_EXT
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#define GLX_NONE_EXT                       0x8000
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#endif
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#ifndef GLX_ARB_multisample
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#define GLX_ARB_multisample
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#define GLX_SAMPLE_BUFFERS_ARB             100000
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#define GLX_SAMPLES_ARB                    100001
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#endif
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#ifndef GLX_EXT_visual_rating
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#define GLX_EXT_visual_rating
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#define GLX_VISUAL_CAVEAT_EXT              0x20
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#define GLX_NONE_EXT                       0x8000
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#define GLX_SLOW_VISUAL_EXT                0x8001
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#define GLX_NON_CONFORMANT_VISUAL_EXT      0x800D
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#endif
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#ifndef GLX_EXT_visual_info
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#define GLX_EXT_visual_info
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#define GLX_X_VISUAL_TYPE_EXT              0x22
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#define GLX_DIRECT_COLOR_EXT               0x8003
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#endif
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#ifndef GLX_ARB_create_context
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#define GLX_ARB_create_context
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#define GLX_CONTEXT_MAJOR_VERSION_ARB      0x2091
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#define GLX_CONTEXT_MINOR_VERSION_ARB      0x2092
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#define GLX_CONTEXT_FLAGS_ARB              0x2094
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#define GLX_CONTEXT_DEBUG_BIT_ARB          0x0001
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#define GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002
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/* Typedef for the GL 3.0 context creation function */
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typedef GLXContext(*PFNGLXCREATECONTEXTATTRIBSARBPROC) (Display * dpy,
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                                                        GLXFBConfig config,
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                                                        GLXContext
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                                                        share_context,
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                                                        Bool direct,
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                                                        const int
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                                                        *attrib_list);
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#endif
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#ifndef GLX_ARB_create_context_profile
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#define GLX_ARB_create_context_profile
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#define GLX_CONTEXT_PROFILE_MASK_ARB       0x9126
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#define GLX_CONTEXT_CORE_PROFILE_BIT_ARB   0x00000001
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#define GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002
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#endif
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#ifndef GLX_ARB_create_context_robustness
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#define GLX_ARB_create_context_robustness
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#define GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB  0x00000004
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#define GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB     0x8256
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#define GLX_NO_RESET_NOTIFICATION_ARB                   0x8261
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#define GLX_LOSE_CONTEXT_ON_RESET_ARB                   0x8252
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#endif
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#ifndef GLX_EXT_create_context_es2_profile
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#define GLX_EXT_create_context_es2_profile
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#ifndef GLX_CONTEXT_ES2_PROFILE_BIT_EXT
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#define GLX_CONTEXT_ES2_PROFILE_BIT_EXT    0x00000002
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#endif
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#endif
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#ifndef GLX_EXT_swap_control
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#define GLX_SWAP_INTERVAL_EXT              0x20F1
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#define GLX_MAX_SWAP_INTERVAL_EXT          0x20F2
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#endif
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#ifndef GLX_EXT_swap_control_tear
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#define GLX_LATE_SWAPS_TEAR_EXT 0x20F3
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#endif
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#define OPENGL_REQUIRES_DLOPEN
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#if defined(OPENGL_REQUIRES_DLOPEN) && defined(SDL_LOADSO_DLOPEN)
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#include <dlfcn.h>
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#define GL_LoadObject(X)	dlopen(X, (RTLD_NOW|RTLD_GLOBAL))
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#define GL_LoadFunction		dlsym
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#define GL_UnloadObject		dlclose
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#else
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#define GL_LoadObject	SDL_LoadObject
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#define GL_LoadFunction	SDL_LoadFunction
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#define GL_UnloadObject	SDL_UnloadObject
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#endif
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static void X11_GL_InitExtensions(_THIS);
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int
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X11_GL_LoadLibrary(_THIS, const char *path)
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{
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    void *handle;
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    if (_this->gl_data) {
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        SDL_SetError("OpenGL context already created");
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        return -1;
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    }
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    /* If SDL_GL_CONTEXT_EGL has been changed to 1, switch over to X11_GLES functions  */
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    if (_this->gl_config.use_egl == 1) {
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#if SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
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        _this->GL_LoadLibrary = X11_GLES_LoadLibrary;
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        _this->GL_GetProcAddress = X11_GLES_GetProcAddress;
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        _this->GL_UnloadLibrary = X11_GLES_UnloadLibrary;
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        _this->GL_CreateContext = X11_GLES_CreateContext;
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        _this->GL_MakeCurrent = X11_GLES_MakeCurrent;
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        _this->GL_SetSwapInterval = X11_GLES_SetSwapInterval;
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        _this->GL_GetSwapInterval = X11_GLES_GetSwapInterval;
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        _this->GL_SwapWindow = X11_GLES_SwapWindow;
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        _this->GL_DeleteContext = X11_GLES_DeleteContext;
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        return X11_GLES_LoadLibrary(_this, path);
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#else
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        SDL_SetError("SDL not configured with OpenGL ES/EGL support");
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        return -1;
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#endif
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    }
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    /* Load the OpenGL library */
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    if (path == NULL) {
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        path = SDL_getenv("SDL_OPENGL_LIBRARY");
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    }
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    if (path == NULL) {
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        path = DEFAULT_OPENGL;
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    }
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    _this->gl_config.dll_handle = GL_LoadObject(path);
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    if (!_this->gl_config.dll_handle) {
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#if defined(OPENGL_REQUIRES_DLOPEN) && defined(SDL_LOADSO_DLOPEN)
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        SDL_SetError("Failed loading %s: %s", path, dlerror());
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#endif
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        return -1;
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    }
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    SDL_strlcpy(_this->gl_config.driver_path, path,
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                SDL_arraysize(_this->gl_config.driver_path));
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    /* Allocate OpenGL memory */
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    _this->gl_data =
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        (struct SDL_GLDriverData *) SDL_calloc(1,
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                                               sizeof(struct
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                                                      SDL_GLDriverData));
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    if (!_this->gl_data) {
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        SDL_OutOfMemory();
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        return -1;
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    }
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    /* Load function pointers */
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    handle = _this->gl_config.dll_handle;
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    _this->gl_data->glXGetProcAddress =
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        (void *(*)(const GLubyte *))
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            GL_LoadFunction(handle, "glXGetProcAddressARB");
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    _this->gl_data->glXChooseVisual =
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        (XVisualInfo * (*)(Display *, int, int *))
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            X11_GL_GetProcAddress(_this, "glXChooseVisual");
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    _this->gl_data->glXCreateContext =
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        (GLXContext(*)(Display *, XVisualInfo *, GLXContext, int))
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            X11_GL_GetProcAddress(_this, "glXCreateContext");
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    _this->gl_data->glXDestroyContext =
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        (void (*)(Display *, GLXContext))
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            X11_GL_GetProcAddress(_this, "glXDestroyContext");
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    _this->gl_data->glXMakeCurrent =
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        (int (*)(Display *, GLXDrawable, GLXContext))
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            X11_GL_GetProcAddress(_this, "glXMakeCurrent");
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    _this->gl_data->glXSwapBuffers =
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        (void (*)(Display *, GLXDrawable))
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            X11_GL_GetProcAddress(_this, "glXSwapBuffers");
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    _this->gl_data->glXQueryDrawable =
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        (void (*)(Display*,GLXDrawable,int,unsigned int*))
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            X11_GL_GetProcAddress(_this, "glXQueryDrawable");
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    if (!_this->gl_data->glXChooseVisual ||
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        !_this->gl_data->glXCreateContext ||
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        !_this->gl_data->glXDestroyContext ||
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        !_this->gl_data->glXMakeCurrent ||
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        !_this->gl_data->glXSwapBuffers) {
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        SDL_SetError("Could not retrieve OpenGL functions");
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        return -1;
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    }
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    /* Initialize extensions */
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    X11_GL_InitExtensions(_this);
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    return 0;
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}
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void *
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X11_GL_GetProcAddress(_THIS, const char *proc)
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{
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    if (_this->gl_data->glXGetProcAddress) {
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        return _this->gl_data->glXGetProcAddress((const GLubyte *) proc);
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    }
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    return GL_LoadFunction(_this->gl_config.dll_handle, proc);
1952
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}
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void
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X11_GL_UnloadLibrary(_THIS)
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{
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    /* Don't actually unload the library, since it may have registered
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     * X11 shutdown hooks, per the notes at:
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     * http://dri.sourceforge.net/doc/DRIuserguide.html
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     */
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#if 0
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    GL_UnloadObject(_this->gl_config.dll_handle);
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    _this->gl_config.dll_handle = NULL;
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   248
#endif
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    /* Free OpenGL memory */
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   251
    if (_this->gl_data) {
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        SDL_free(_this->gl_data);
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        _this->gl_data = NULL;
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   254
    }
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}
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420716272158 Implemented X11 OpenGL support.
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   257
static SDL_bool
420716272158 Implemented X11 OpenGL support.
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diff changeset
   258
HasExtension(const char *extension, const char *extensions)
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   259
{
420716272158 Implemented X11 OpenGL support.
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diff changeset
   260
    const char *start;
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   261
    const char *where, *terminator;
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   262
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   263
    /* Extension names should not have spaces. */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   264
    where = SDL_strchr(extension, ' ');
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   265
    if (where || *extension == '\0')
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   266
        return SDL_FALSE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   267
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   268
    if (!extensions)
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   269
        return SDL_FALSE;
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   270
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   271
    /* It takes a bit of care to be fool-proof about parsing the
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   272
     * OpenGL extensions string. Don't be fooled by sub-strings,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   273
     * etc. */
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   274
420716272158 Implemented X11 OpenGL support.
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diff changeset
   275
    start = extensions;
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   276
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   277
    for (;;) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   278
        where = SDL_strstr(start, extension);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   279
        if (!where)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   280
            break;
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   281
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
   282
        terminator = where + SDL_strlen(extension);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   283
        if (where == start || *(where - 1) == ' ')
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   284
            if (*terminator == ' ' || *terminator == '\0')
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   285
                return SDL_TRUE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   286
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   287
        start = terminator;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   288
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   289
    return SDL_FALSE;
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
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   292
static void
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   293
X11_GL_InitExtensions(_THIS)
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   294
{
420716272158 Implemented X11 OpenGL support.
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diff changeset
   295
    Display *display = ((SDL_VideoData *) _this->driverdata)->display;
5244
762e40fb8e28 Be explicit about what display you're querying. The default display is 0.
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parents: 5243
diff changeset
   296
    int screen = DefaultScreen(display);
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   297
    XVisualInfo *vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   298
    XSetWindowAttributes xattr;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   299
    Window w;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   300
    GLXContext context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   301
    const char *(*glXQueryExtensionsStringFunc) (Display *, int);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   302
    const char *extensions;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   303
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   304
    vinfo = X11_GL_GetVisual(_this, display, screen);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   305
    if (!vinfo) {
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   306
        return;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   307
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   308
    xattr.background_pixel = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   309
    xattr.border_pixel = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   310
    xattr.colormap =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   311
        XCreateColormap(display, RootWindow(display, screen), vinfo->visual,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   312
                        AllocNone);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   313
    w = XCreateWindow(display, RootWindow(display, screen), 0, 0, 32, 32, 0,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   314
                      vinfo->depth, InputOutput, vinfo->visual,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   315
                      (CWBackPixel | CWBorderPixel | CWColormap), &xattr);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   316
    context = _this->gl_data->glXCreateContext(display, vinfo, NULL, True);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   317
    if (context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   318
        _this->gl_data->glXMakeCurrent(display, w, context);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   319
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   320
    XFree(vinfo);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   321
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   322
    glXQueryExtensionsStringFunc =
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   323
        (const char *(*)(Display *, int)) X11_GL_GetProcAddress(_this,
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   324
                                                                "glXQueryExtensionsString");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   325
    if (glXQueryExtensionsStringFunc) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   326
        extensions = glXQueryExtensionsStringFunc(display, screen);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   327
    } else {
420716272158 Implemented X11 OpenGL support.
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parents:
diff changeset
   328
        extensions = NULL;
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
6382
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   331
    /* Check for GLX_EXT_swap_control(_tear) */
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   332
    _this->gl_data->HAS_GLX_EXT_swap_control_tear = SDL_FALSE;
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   333
    if (HasExtension("GLX_EXT_swap_control", extensions)) {
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   334
        _this->gl_data->glXSwapIntervalEXT =
6846
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   335
            (void (*)(Display*,GLXDrawable,int))
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   336
                X11_GL_GetProcAddress(_this, "glXSwapIntervalEXT");
6382
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   337
        if (HasExtension("GLX_EXT_swap_control_tear", extensions)) {
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   338
            _this->gl_data->HAS_GLX_EXT_swap_control_tear = SDL_TRUE;
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   339
        }
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   340
    }
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
    /* Check for GLX_MESA_swap_control */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   343
    if (HasExtension("GLX_MESA_swap_control", extensions)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   344
        _this->gl_data->glXSwapIntervalMESA =
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   345
            (int(*)(int)) X11_GL_GetProcAddress(_this, "glXSwapIntervalMESA");
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   346
        _this->gl_data->glXGetSwapIntervalMESA =
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   347
            (int(*)(void)) X11_GL_GetProcAddress(_this,
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   348
                                                   "glXGetSwapIntervalMESA");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   349
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   350
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   351
    /* Check for GLX_SGI_swap_control */
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   352
    if (HasExtension("GLX_SGI_swap_control", extensions)) {
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   353
        _this->gl_data->glXSwapIntervalSGI =
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   354
            (int (*)(int)) X11_GL_GetProcAddress(_this, "glXSwapIntervalSGI");
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   355
    }
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   356
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   357
    /* Check for GLX_EXT_visual_rating */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   358
    if (HasExtension("GLX_EXT_visual_rating", extensions)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   359
        _this->gl_data->HAS_GLX_EXT_visual_rating = SDL_TRUE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   360
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   361
6570
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   362
    /* Check for GLX_EXT_visual_info */
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   363
    if (HasExtension("GLX_EXT_visual_info", extensions)) {
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   364
        _this->gl_data->HAS_GLX_EXT_visual_info = SDL_TRUE;
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   365
    }
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   366
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   367
    if (context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   368
        _this->gl_data->glXMakeCurrent(display, None, NULL);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   369
        _this->gl_data->glXDestroyContext(display, context);
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
    XDestroyWindow(display, w);
2323
4ac07ae446d3 Fixed many valgrind errors. But, I broke testdyngl.
Bob Pendleton <bob@pendleton.com>
parents: 2322
diff changeset
   372
    X11_PumpEvents(_this);
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   373
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   374
6296
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   375
/* glXChooseVisual and glXChooseFBConfig have some small differences in
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   376
 * the attribute encoding, it can be chosen with the for_FBConfig parameter. 
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   377
 */
5395
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   378
int 
6296
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   379
X11_GL_GetAttributes(_THIS, Display * display, int screen, int * attribs, int size, Bool for_FBConfig)
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   380
{
5395
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   381
    int i = 0;
6570
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   382
	const int MAX_ATTRIBUTES = 64;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   383
5395
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   384
    /* assert buffer is large enough to hold all SDL attributes. */ 
6570
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   385
    SDL_assert(size >= MAX_ATTRIBUTES);
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   386
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   387
    /* Setup our GLX attributes according to the gl_config. */
6296
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   388
    if( for_FBConfig ) {
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   389
        attribs[i++] = GLX_RENDER_TYPE;
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   390
	attribs[i++] = GLX_RGBA_BIT;
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   391
    } else {
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   392
        attribs[i++] = GLX_RGBA;
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   393
    }
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   394
    attribs[i++] = GLX_RED_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   395
    attribs[i++] = _this->gl_config.red_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   396
    attribs[i++] = GLX_GREEN_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   397
    attribs[i++] = _this->gl_config.green_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   398
    attribs[i++] = GLX_BLUE_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   399
    attribs[i++] = _this->gl_config.blue_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   400
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   401
    if (_this->gl_config.alpha_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   402
        attribs[i++] = GLX_ALPHA_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   403
        attribs[i++] = _this->gl_config.alpha_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   404
    }
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
    if (_this->gl_config.double_buffer) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   407
        attribs[i++] = GLX_DOUBLEBUFFER;
6296
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   408
	if( for_FBConfig )
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   409
	    attribs[i++] = True;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   410
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   411
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   412
    attribs[i++] = GLX_DEPTH_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   413
    attribs[i++] = _this->gl_config.depth_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   414
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   415
    if (_this->gl_config.stencil_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   416
        attribs[i++] = GLX_STENCIL_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   417
        attribs[i++] = _this->gl_config.stencil_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   418
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   419
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   420
    if (_this->gl_config.accum_red_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   421
        attribs[i++] = GLX_ACCUM_RED_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   422
        attribs[i++] = _this->gl_config.accum_red_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   423
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   424
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   425
    if (_this->gl_config.accum_green_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   426
        attribs[i++] = GLX_ACCUM_GREEN_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   427
        attribs[i++] = _this->gl_config.accum_green_size;
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
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   430
    if (_this->gl_config.accum_blue_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   431
        attribs[i++] = GLX_ACCUM_BLUE_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   432
        attribs[i++] = _this->gl_config.accum_blue_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   433
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   434
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   435
    if (_this->gl_config.accum_alpha_size) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   436
        attribs[i++] = GLX_ACCUM_ALPHA_SIZE;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   437
        attribs[i++] = _this->gl_config.accum_alpha_size;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   438
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   439
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   440
    if (_this->gl_config.stereo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   441
        attribs[i++] = GLX_STEREO;
6296
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   442
	if( for_FBConfig )
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   443
	    attribs[i++] = True;
1952
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
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   446
    if (_this->gl_config.multisamplebuffers) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   447
        attribs[i++] = GLX_SAMPLE_BUFFERS_ARB;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   448
        attribs[i++] = _this->gl_config.multisamplebuffers;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   449
    }
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
    if (_this->gl_config.multisamplesamples) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   452
        attribs[i++] = GLX_SAMPLES_ARB;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   453
        attribs[i++] = _this->gl_config.multisamplesamples;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   454
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   455
3571
19691cebb866 Default to allow either accelerated or not
Sam Lantinga <slouken@libsdl.org>
parents: 3570
diff changeset
   456
    if (_this->gl_config.accelerated >= 0 &&
19691cebb866 Default to allow either accelerated or not
Sam Lantinga <slouken@libsdl.org>
parents: 3570
diff changeset
   457
        _this->gl_data->HAS_GLX_EXT_visual_rating) {
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   458
        attribs[i++] = GLX_VISUAL_CAVEAT_EXT;
3570
7812d3e9564e OpenGL hardware acceleration defaults on
Sam Lantinga <slouken@libsdl.org>
parents: 3361
diff changeset
   459
        attribs[i++] = _this->gl_config.accelerated ? GLX_NONE_EXT :
7812d3e9564e OpenGL hardware acceleration defaults on
Sam Lantinga <slouken@libsdl.org>
parents: 3361
diff changeset
   460
                                                      GLX_SLOW_VISUAL_EXT;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   461
    }
3570
7812d3e9564e OpenGL hardware acceleration defaults on
Sam Lantinga <slouken@libsdl.org>
parents: 3361
diff changeset
   462
6817
93103b719488 Cleaned out a few C++ single-line comments.
Ryan C. Gordon <icculus@icculus.org>
parents: 6794
diff changeset
   463
    /* If we're supposed to use DirectColor visuals, and we've got the
93103b719488 Cleaned out a few C++ single-line comments.
Ryan C. Gordon <icculus@icculus.org>
parents: 6794
diff changeset
   464
       EXT_visual_info extension, then add GLX_X_VISUAL_TYPE_EXT. */
6570
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   465
    if (X11_UseDirectColorVisuals() &&
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   466
        _this->gl_data->HAS_GLX_EXT_visual_info) {
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   467
        attribs[i++] = GLX_X_VISUAL_TYPE_EXT;
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   468
        attribs[i++] = GLX_DIRECT_COLOR_EXT;
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   469
    }
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   470
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   471
    attribs[i++] = None;
6570
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   472
45855398762c Add GLX_X_VISUAL_TYPE_EXT so created window will use DirectColor if available (instead of TrueColor).
Michael Sartain <mikesart@valvesoftware.com>
parents: 6522
diff changeset
   473
    SDL_assert(i <= MAX_ATTRIBUTES);
5395
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   474
 
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   475
    return i;
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   476
}
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   477
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   478
XVisualInfo *
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   479
X11_GL_GetVisual(_THIS, Display * display, int screen)
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   480
{
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   481
    XVisualInfo *vinfo;
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   482
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   483
    /* 64 seems nice. */
6296
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   484
    int attribs[64];
6359
b2a768065c32 Removed unused variable to silence compiler warning.
Ryan C. Gordon <icculus@icculus.org>
parents: 6296
diff changeset
   485
    X11_GL_GetAttributes(_this,display,screen,attribs,64,SDL_FALSE);
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   486
6181
e29f01fa2750 Fixed bug 1313 - Segfault on SDL_CreateWindow when gl lib cannot be loaded
Sam Lantinga <slouken@libsdl.org>
parents: 6138
diff changeset
   487
    if (!_this->gl_data) {
e29f01fa2750 Fixed bug 1313 - Segfault on SDL_CreateWindow when gl lib cannot be loaded
Sam Lantinga <slouken@libsdl.org>
parents: 6138
diff changeset
   488
        /* The OpenGL library wasn't loaded, SDL_GetError() should have info */
e29f01fa2750 Fixed bug 1313 - Segfault on SDL_CreateWindow when gl lib cannot be loaded
Sam Lantinga <slouken@libsdl.org>
parents: 6138
diff changeset
   489
        return NULL;
e29f01fa2750 Fixed bug 1313 - Segfault on SDL_CreateWindow when gl lib cannot be loaded
Sam Lantinga <slouken@libsdl.org>
parents: 6138
diff changeset
   490
    }
e29f01fa2750 Fixed bug 1313 - Segfault on SDL_CreateWindow when gl lib cannot be loaded
Sam Lantinga <slouken@libsdl.org>
parents: 6138
diff changeset
   491
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   492
    vinfo = _this->gl_data->glXChooseVisual(display, screen, attribs);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   493
    if (!vinfo) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   494
        SDL_SetError("Couldn't find matching GLX visual");
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
    return vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   497
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   498
6988
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   499
#ifndef GLXBadContext
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   500
#define GLXBadContext 0
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   501
#endif
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   502
#ifndef GLXBadFBConfig
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   503
#define GLXBadFBConfig 9
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   504
#endif
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   505
#ifndef GLXBadProfileARB
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   506
#define GLXBadProfileARB 13
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   507
#endif
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   508
static int (*handler) (Display *, XErrorEvent *) = NULL;
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   509
static int
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   510
X11_GL_CreateContextErrorHandler(Display * d, XErrorEvent * e)
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   511
{
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   512
    switch (e->error_code) {
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   513
    case GLXBadContext:
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   514
    case GLXBadFBConfig:
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   515
    case GLXBadProfileARB:
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   516
    case BadRequest:
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   517
    case BadMatch:
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   518
    case BadValue:
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   519
    case BadAlloc:
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   520
        return (0);
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   521
    default:
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   522
        return (handler(d, e));
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   523
    }
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   524
}
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   525
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   526
SDL_GLContext
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   527
X11_GL_CreateContext(_THIS, SDL_Window * window)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   528
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   529
    SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   530
    Display *display = data->videodata->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   531
    int screen =
5246
58265e606e4e Window coordinates are in the global space and windows are not tied to a particular display.
Sam Lantinga <slouken@libsdl.org>
parents: 5244
diff changeset
   532
        ((SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata)->screen;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   533
    XWindowAttributes xattr;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   534
    XVisualInfo v, *vinfo;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   535
    int n;
6393
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   536
    GLXContext context = NULL, share_context;
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   537
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   538
    if (_this->gl_config.share_with_current_context) {
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   539
        share_context = (GLXContext)(_this->current_glctx);
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   540
    } else {
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   541
        share_context = NULL;
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   542
    }
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   543
1955
Sam Lantinga <slouken@libsdl.org>
parents: 1954
diff changeset
   544
    /* 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
   545
    XSync(display, False);
6988
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   546
    handler = XSetErrorHandler(X11_GL_CreateContextErrorHandler);
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 3571
diff changeset
   547
    XGetWindowAttributes(display, data->xwindow, &xattr);
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   548
    v.screen = screen;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   549
    v.visualid = XVisualIDFromVisual(xattr.visual);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   550
    vinfo = XGetVisualInfo(display, VisualScreenMask | VisualIDMask, &v, &n);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   551
    if (vinfo) {
6393
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   552
        if (_this->gl_config.major_version < 3 &&
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   553
            _this->gl_config.profile_mask == 0 &&
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   554
            _this->gl_config.flags == 0) {
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   555
            /* Create legacy context */
3100
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   556
            context =
6393
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   557
                _this->gl_data->glXCreateContext(display, vinfo, share_context, True);
3100
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   558
        } else {
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   559
            /* If we want a GL 3.0 context or later we need to get a temporary
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   560
               context to grab the new context creation function */
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   561
            GLXContext temp_context =
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   562
                _this->gl_data->glXCreateContext(display, vinfo, NULL, True);
6988
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   563
            if (temp_context) {
6393
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   564
                /* max 8 attributes plus terminator */
6296
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   565
                int attribs[9] = {
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   566
                    GLX_CONTEXT_MAJOR_VERSION_ARB,
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   567
                    _this->gl_config.major_version,
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   568
                    GLX_CONTEXT_MINOR_VERSION_ARB,
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   569
                    _this->gl_config.minor_version,
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   570
                    0
3100
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   571
                };
6393
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   572
                int iattr = 4;
6296
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   573
6393
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   574
                /* SDL profile bits match GLX profile bits */
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   575
                if( _this->gl_config.profile_mask != 0 ) {
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   576
                    attribs[iattr++] = GLX_CONTEXT_PROFILE_MASK_ARB;
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   577
                    attribs[iattr++] = _this->gl_config.profile_mask;
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   578
                }
6296
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   579
6393
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   580
                /* SDL flags match GLX flags */
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   581
                if( _this->gl_config.flags != 0 ) {
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   582
                    attribs[iattr++] = GLX_CONTEXT_FLAGS_ARB;
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   583
                    attribs[iattr++] = _this->gl_config.flags;
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   584
                }
6296
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   585
6393
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   586
                attribs[iattr++] = 0;
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   587
3100
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   588
                /* Get a pointer to the context creation function for GL 3.0 */
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   589
                PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribs =
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   590
                    (PFNGLXCREATECONTEXTATTRIBSARBPROC) _this->gl_data->
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   591
                    glXGetProcAddress((GLubyte *)
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   592
                                      "glXCreateContextAttribsARB");
3100
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   593
                if (!glXCreateContextAttribs) {
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   594
                    SDL_SetError("GL 3.x is not supported");
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   595
                    context = temp_context;
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   596
                } else {
5395
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   597
                    int glxAttribs[64];
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   598
3105
cdeee9f9b14b Fixed bug #721
Sam Lantinga <slouken@libsdl.org>
parents: 3100
diff changeset
   599
                    /* Create a GL 3.x context */
3100
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   600
                    GLXFBConfig *framebuffer_config = NULL;
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   601
                    int fbcount = 0;
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   602
                    GLXFBConfig *(*glXChooseFBConfig) (Display * disp,
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   603
                                                       int screen,
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   604
                                                       const int *attrib_list,
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   605
                                                       int *nelements);
3105
cdeee9f9b14b Fixed bug #721
Sam Lantinga <slouken@libsdl.org>
parents: 3100
diff changeset
   606
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   607
                    glXChooseFBConfig =
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   608
                        (GLXFBConfig *
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   609
                         (*)(Display *, int, const int *,
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   610
                             int *)) _this->gl_data->
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   611
                        glXGetProcAddress((GLubyte *) "glXChooseFBConfig");
3105
cdeee9f9b14b Fixed bug #721
Sam Lantinga <slouken@libsdl.org>
parents: 3100
diff changeset
   612
6296
b42657486c0d Add OpenGL 3.X context creation support
Sam Lantinga <slouken@libsdl.org>
parents: 6282
diff changeset
   613
                    X11_GL_GetAttributes(_this,display,screen,glxAttribs,64,SDL_TRUE);
5395
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   614
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   615
                    if (!glXChooseFBConfig
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   616
                        || !(framebuffer_config =
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   617
                             glXChooseFBConfig(display,
5395
f0e399961f3a Fixed bug 1145 (GL Context creation fails for OpenGL 3.2 + Alpha buffer with X11 BadMatch)
Sam Lantinga <slouken@libsdl.org>
parents: 5262
diff changeset
   618
                                               DefaultScreen(display), glxAttribs,
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   619
                                               &fbcount))) {
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   620
                        SDL_SetError
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   621
                            ("No good framebuffers found. GL 3.x disabled");
3100
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   622
                        context = temp_context;
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   623
                    } else {
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   624
                        context =
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   625
                            glXCreateContextAttribs(display,
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   626
                                                    framebuffer_config[0],
6393
a773384edf20 Fixed bug 1565 - some small GL context creation enhancements
Sam Lantinga <slouken@libsdl.org>
parents: 6382
diff changeset
   627
                                                    share_context, True, attribs);
3139
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   628
                        _this->gl_data->glXDestroyContext(display,
Sam Lantinga <slouken@libsdl.org>
parents: 3105
diff changeset
   629
                                                          temp_context);
3100
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   630
                    }
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   631
                }
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   632
            }
7dc982143c06 Date: Sun, 22 Mar 2009 12:52:29 +0000
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
   633
        }
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   634
        XFree(vinfo);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   635
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   636
    XSync(display, False);
6988
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   637
    XSetErrorHandler(handler);
2aed1beaf5bc Fixed bug 1749 - SDL_GL_CreateContext() causes fatal X11 protocol errors that should just be caught instead
Sam Lantinga <slouken@libsdl.org>
parents: 6948
diff changeset
   638
    
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   639
    if (!context) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   640
        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
   641
        return NULL;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   642
    }
2178
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   643
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   644
    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
   645
        X11_GL_DeleteContext(_this, context);
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   646
        return NULL;
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   647
    }
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   648
114a541cfae2 Creating a context makes it current, per the documentation.
Sam Lantinga <slouken@libsdl.org>
parents: 2105
diff changeset
   649
    return context;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   650
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   651
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   652
int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   653
X11_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   654
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   655
    Display *display = ((SDL_VideoData *) _this->driverdata)->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   656
    Window drawable =
6794
a0d42781fa92 Corrected call to glXMakeCurrent() when setting a NULL context.
Edward Rudd <urkle@outoforder.cc>
parents: 6570
diff changeset
   657
        (context ? ((SDL_WindowData *) window->driverdata)->xwindow : None);
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   658
    GLXContext glx_context = (GLXContext) context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   659
    int status;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   660
6522
edacce9402fb The gl_data is optional for the driver, so don't early out of the context delete call if it doesn't exist.
Sam Lantinga <slouken@libsdl.org>
parents: 6393
diff changeset
   661
    if (!_this->gl_data) {
edacce9402fb The gl_data is optional for the driver, so don't early out of the context delete call if it doesn't exist.
Sam Lantinga <slouken@libsdl.org>
parents: 6393
diff changeset
   662
        SDL_SetError("OpenGL not initialized");
edacce9402fb The gl_data is optional for the driver, so don't early out of the context delete call if it doesn't exist.
Sam Lantinga <slouken@libsdl.org>
parents: 6393
diff changeset
   663
        return -1;
edacce9402fb The gl_data is optional for the driver, so don't early out of the context delete call if it doesn't exist.
Sam Lantinga <slouken@libsdl.org>
parents: 6393
diff changeset
   664
    }
edacce9402fb The gl_data is optional for the driver, so don't early out of the context delete call if it doesn't exist.
Sam Lantinga <slouken@libsdl.org>
parents: 6393
diff changeset
   665
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   666
    status = 0;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   667
    if (!_this->gl_data->glXMakeCurrent(display, drawable, glx_context)) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   668
        SDL_SetError("Unable to make GL context current");
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   669
        status = -1;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   670
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   671
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   672
    return (status);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   673
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   674
2327
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
   675
/* 
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   676
   0 is a valid argument to glxSwapInterval(MESA|EXT) and setting it to 0
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   677
   will undo the effect of a previous call with a value that is greater
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   678
   than zero (or at least that is what the docs say). OTOH, 0 is an invalid
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   679
   argument to glxSwapIntervalSGI and it returns an error if you call it
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   680
   with 0 as an argument.
2327
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
   681
*/
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
   682
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
   683
static int swapinterval = -1;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   684
int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   685
X11_GL_SetSwapInterval(_THIS, int interval)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   686
{
6382
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   687
    int status = -1;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   688
6382
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   689
    if ((interval < 0) && (!_this->gl_data->HAS_GLX_EXT_swap_control_tear)) {
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   690
        SDL_SetError("Negative swap interval unsupported in this GL");
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   691
    } else if (_this->gl_data->glXSwapIntervalEXT) {
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   692
        Display *display = ((SDL_VideoData *) _this->driverdata)->display;
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   693
        const SDL_WindowData *windowdata = (SDL_WindowData *)
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   694
            _this->current_glwin->driverdata;
6846
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   695
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   696
        Window drawable = windowdata->xwindow;
6846
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   697
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   698
        /*
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   699
         * This is a workaround for a bug in NVIDIA drivers. Bug has been reported
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   700
         * and will be fixed in a future release (probably 319.xx).
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   701
         *
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   702
         * There's a bug where glXSetSwapIntervalEXT ignores updates because
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   703
         * it has the wrong value cached. To work around it, we just run a no-op
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   704
         * update to the current value.
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   705
         */
6851
a58fc7ff4a0f Fixed compiler warnings
Sam Lantinga <slouken@libsdl.org>
parents: 6846
diff changeset
   706
        int currentInterval = X11_GL_GetSwapInterval(_this);
6846
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   707
        _this->gl_data->glXSwapIntervalEXT(display, drawable, currentInterval);
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   708
        _this->gl_data->glXSwapIntervalEXT(display, drawable, interval);
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   709
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   710
        status = 0;
97eb26e2dee0 Workaround for NVIDIA bug in glXSwapIntervalEXT.
Sam Lantinga <slouken@libsdl.org>
parents: 6817
diff changeset
   711
        swapinterval = interval;
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   712
    } else if (_this->gl_data->glXSwapIntervalMESA) {
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   713
        status = _this->gl_data->glXSwapIntervalMESA(interval);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   714
        if (status != 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   715
            SDL_SetError("glxSwapIntervalMESA failed");
2327
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
   716
        } else {
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
   717
            swapinterval = interval;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   718
        }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   719
    } else if (_this->gl_data->glXSwapIntervalSGI) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   720
        status = _this->gl_data->glXSwapIntervalSGI(interval);
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   721
        if (status != 0) {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   722
            SDL_SetError("glxSwapIntervalSGI failed");
2327
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
   723
        } else {
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
   724
            swapinterval = interval;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   725
        }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   726
    } else {
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   727
        SDL_Unsupported();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   728
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   729
    return status;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   730
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   731
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   732
int
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   733
X11_GL_GetSwapInterval(_THIS)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   734
{
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   735
    if (_this->gl_data->glXSwapIntervalEXT) {
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   736
        Display *display = ((SDL_VideoData *) _this->driverdata)->display;
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   737
        const SDL_WindowData *windowdata = (SDL_WindowData *)
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   738
            _this->current_glwin->driverdata;
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   739
        Window drawable = windowdata->xwindow;
6382
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   740
        unsigned int allow_late_swap_tearing = 0;
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   741
        unsigned int interval = 0;
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   742
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   743
        if (_this->gl_data->HAS_GLX_EXT_swap_control_tear) {
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   744
            _this->gl_data->glXQueryDrawable(display, drawable,
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   745
                                            GLX_LATE_SWAPS_TEAR_EXT,
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   746
                                            &allow_late_swap_tearing);
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   747
        }
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   748
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   749
        _this->gl_data->glXQueryDrawable(display, drawable,
6382
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   750
                                         GLX_SWAP_INTERVAL_EXT, &interval);
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   751
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   752
        if ((allow_late_swap_tearing) && (interval > 0)) {
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   753
            return -((int) interval);
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   754
        }
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   755
64d54101773a Add support for (GLX|WGL)_EXT_swap_control_tear.
Ryan C. Gordon <icculus@icculus.org>
parents: 6375
diff changeset
   756
        return (int) interval;
5572
32a785da3f49 Added support for GLX_EXT_swap_control, and cleaned up some other extensions.
Ryan C. Gordon <icculus@icculus.org>
parents: 5535
diff changeset
   757
    } else if (_this->gl_data->glXGetSwapIntervalMESA) {
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   758
        return _this->gl_data->glXGetSwapIntervalMESA();
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   759
    } else {
2327
7b53a8401195 In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was
Bob Pendleton <bob@pendleton.com>
parents: 2324
diff changeset
   760
        return swapinterval;
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   761
    }
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   762
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   763
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   764
void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   765
X11_GL_SwapWindow(_THIS, SDL_Window * window)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   766
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   767
    SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   768
    Display *display = data->videodata->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   769
3685
64ce267332c6 Switched from SDL_WindowID and SDL_TextureID to SDL_Window* and SDL_Texture* for code simplicity and improved performance.
Sam Lantinga <slouken@libsdl.org>
parents: 3571
diff changeset
   770
    _this->gl_data->glXSwapBuffers(display, data->xwindow);
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   771
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   772
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   773
void
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   774
X11_GL_DeleteContext(_THIS, SDL_GLContext context)
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   775
{
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   776
    Display *display = ((SDL_VideoData *) _this->driverdata)->display;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   777
    GLXContext glx_context = (GLXContext) context;
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   778
6522
edacce9402fb The gl_data is optional for the driver, so don't early out of the context delete call if it doesn't exist.
Sam Lantinga <slouken@libsdl.org>
parents: 6393
diff changeset
   779
    if (!_this->gl_data) {
edacce9402fb The gl_data is optional for the driver, so don't early out of the context delete call if it doesn't exist.
Sam Lantinga <slouken@libsdl.org>
parents: 6393
diff changeset
   780
        return;
edacce9402fb The gl_data is optional for the driver, so don't early out of the context delete call if it doesn't exist.
Sam Lantinga <slouken@libsdl.org>
parents: 6393
diff changeset
   781
    }
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   782
    _this->gl_data->glXDestroyContext(display, glx_context);
2324
3202e4826c57 more valgrind errors fixed. Plus I ran make indent which changed a few files.
Bob Pendleton <bob@pendleton.com>
parents: 2323
diff changeset
   783
    XSync(display, False);
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   784
}
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   785
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   786
#endif /* SDL_VIDEO_OPENGL_GLX */
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   787
6044
35448a5ea044 Lots of fixes importing SDL source wholesale into a new iOS project
Sam Lantinga <slouken@libsdl.org>
parents: 5981
diff changeset
   788
#endif /* SDL_VIDEO_DRIVER_X11 */
35448a5ea044 Lots of fixes importing SDL source wholesale into a new iOS project
Sam Lantinga <slouken@libsdl.org>
parents: 5981
diff changeset
   789
1952
420716272158 Implemented X11 OpenGL support.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
   790
/* vi: set ts=4 sw=4 expandtab: */