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Diffstat (limited to 'distrib/sdl-1.2.12/src/video/x11/SDL_x11gl.c')
-rw-r--r--distrib/sdl-1.2.12/src/video/x11/SDL_x11gl.c552
1 files changed, 0 insertions, 552 deletions
diff --git a/distrib/sdl-1.2.12/src/video/x11/SDL_x11gl.c b/distrib/sdl-1.2.12/src/video/x11/SDL_x11gl.c
deleted file mode 100644
index dcf8080..0000000
--- a/distrib/sdl-1.2.12/src/video/x11/SDL_x11gl.c
+++ /dev/null
@@ -1,552 +0,0 @@
-/*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997-2006 Sam Lantinga
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
- Sam Lantinga
- slouken@libsdl.org
-*/
-#include "SDL_config.h"
-
-#include "SDL_x11video.h"
-#include "../../events/SDL_events_c.h"
-#include "SDL_x11dga_c.h"
-#include "SDL_x11gl_c.h"
-
-#if defined(__IRIX__)
-/* IRIX doesn't have a GL library versioning system */
-#define DEFAULT_OPENGL "libGL.so"
-#elif defined(__MACOSX__)
-#define DEFAULT_OPENGL "/usr/X11R6/lib/libGL.1.dylib"
-#elif defined(__QNXNTO__)
-#define DEFAULT_OPENGL "libGL.so.3"
-#elif defined(__OpenBSD__)
-#define DEFAULT_OPENGL "libGL.so.4.0"
-#else
-#define DEFAULT_OPENGL "libGL.so.1"
-#endif
-
-#ifndef GLX_ARB_multisample
-#define GLX_ARB_multisample
-#define GLX_SAMPLE_BUFFERS_ARB 100000
-#define GLX_SAMPLES_ARB 100001
-#endif
-
-#ifndef GLX_EXT_visual_rating
-#define GLX_EXT_visual_rating
-#define GLX_VISUAL_CAVEAT_EXT 0x20
-#define GLX_NONE_EXT 0x8000
-#define GLX_SLOW_VISUAL_EXT 0x8001
-#define GLX_NON_CONFORMANT_VISUAL_EXT 0x800D
-#endif
-
-#if SDL_VIDEO_OPENGL_GLX
-static int glXExtensionSupported(_THIS, const char *extension)
-{
- const char *extensions;
- const char *start;
- const char *where, *terminator;
-
- /* Extension names should not have spaces. */
- where = SDL_strchr(extension, ' ');
- if ( where || *extension == '\0' ) {
- return 0;
- }
-
- extensions = this->gl_data->glXQueryExtensionsString(GFX_Display,SDL_Screen);
- /* It takes a bit of care to be fool-proof about parsing the
- * OpenGL extensions string. Don't be fooled by sub-strings, etc.
- */
-
- start = extensions;
-
- for (;;) {
- where = SDL_strstr(start, extension);
- if (!where) break;
-
- terminator = where + strlen(extension);
- if (where == start || *(where - 1) == ' ')
- if (*terminator == ' ' || *terminator == '\0') return 1;
-
- start = terminator;
- }
- return 0;
-}
-#endif /* SDL_VIDEO_OPENGL_GLX */
-
-XVisualInfo *X11_GL_GetVisual(_THIS)
-{
-#if SDL_VIDEO_OPENGL_GLX
- /* 64 seems nice. */
- int attribs[64];
- int i;
-
- /* load the gl driver from a default path */
- if ( ! this->gl_config.driver_loaded ) {
- /* no driver has been loaded, use default (ourselves) */
- if ( X11_GL_LoadLibrary(this, NULL) < 0 ) {
- return NULL;
- }
- }
-
- /* See if we already have a window which we must use */
- if ( SDL_windowid ) {
- XWindowAttributes a;
- XVisualInfo vi_in;
- int out_count;
-
- XGetWindowAttributes(SDL_Display, SDL_Window, &a);
- vi_in.screen = SDL_Screen;
- vi_in.visualid = XVisualIDFromVisual(a.visual);
- glx_visualinfo = XGetVisualInfo(SDL_Display,
- VisualScreenMask|VisualIDMask, &vi_in, &out_count);
- return glx_visualinfo;
- }
-
- /* Setup our GLX attributes according to the gl_config. */
- i = 0;
- attribs[i++] = GLX_RGBA;
- attribs[i++] = GLX_RED_SIZE;
- attribs[i++] = this->gl_config.red_size;
- attribs[i++] = GLX_GREEN_SIZE;
- attribs[i++] = this->gl_config.green_size;
- attribs[i++] = GLX_BLUE_SIZE;
- attribs[i++] = this->gl_config.blue_size;
-
- if( this->gl_config.alpha_size ) {
- attribs[i++] = GLX_ALPHA_SIZE;
- attribs[i++] = this->gl_config.alpha_size;
- }
-
- if( this->gl_config.buffer_size ) {
- attribs[i++] = GLX_BUFFER_SIZE;
- attribs[i++] = this->gl_config.buffer_size;
- }
-
- if( this->gl_config.double_buffer ) {
- attribs[i++] = GLX_DOUBLEBUFFER;
- }
-
- attribs[i++] = GLX_DEPTH_SIZE;
- attribs[i++] = this->gl_config.depth_size;
-
- if( this->gl_config.stencil_size ) {
- attribs[i++] = GLX_STENCIL_SIZE;
- attribs[i++] = this->gl_config.stencil_size;
- }
-
- if( this->gl_config.accum_red_size ) {
- attribs[i++] = GLX_ACCUM_RED_SIZE;
- attribs[i++] = this->gl_config.accum_red_size;
- }
-
- if( this->gl_config.accum_green_size ) {
- attribs[i++] = GLX_ACCUM_GREEN_SIZE;
- attribs[i++] = this->gl_config.accum_green_size;
- }
-
- if( this->gl_config.accum_blue_size ) {
- attribs[i++] = GLX_ACCUM_BLUE_SIZE;
- attribs[i++] = this->gl_config.accum_blue_size;
- }
-
- if( this->gl_config.accum_alpha_size ) {
- attribs[i++] = GLX_ACCUM_ALPHA_SIZE;
- attribs[i++] = this->gl_config.accum_alpha_size;
- }
-
- if( this->gl_config.stereo ) {
- attribs[i++] = GLX_STEREO;
- }
-
- if( this->gl_config.multisamplebuffers ) {
- attribs[i++] = GLX_SAMPLE_BUFFERS_ARB;
- attribs[i++] = this->gl_config.multisamplebuffers;
- }
-
- if( this->gl_config.multisamplesamples ) {
- attribs[i++] = GLX_SAMPLES_ARB;
- attribs[i++] = this->gl_config.multisamplesamples;
- }
-
- if( this->gl_config.accelerated >= 0 &&
- glXExtensionSupported(this, "GLX_EXT_visual_rating") ) {
- attribs[i++] = GLX_VISUAL_CAVEAT_EXT;
- attribs[i++] = GLX_NONE_EXT;
- }
-
-#ifdef GLX_DIRECT_COLOR /* Try for a DirectColor visual for gamma support */
- if ( !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) {
- attribs[i++] = GLX_X_VISUAL_TYPE;
- attribs[i++] = GLX_DIRECT_COLOR;
- }
-#endif
- attribs[i++] = None;
-
- glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display,
- SDL_Screen, attribs);
-#ifdef GLX_DIRECT_COLOR
- if( !glx_visualinfo && !SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) { /* No DirectColor visual? Try again.. */
- attribs[i-3] = None;
- glx_visualinfo = this->gl_data->glXChooseVisual(GFX_Display,
- SDL_Screen, attribs);
- }
-#endif
- if( !glx_visualinfo ) {
- SDL_SetError( "Couldn't find matching GLX visual");
- return NULL;
- }
-/*
- printf("Found GLX visual 0x%x\n", glx_visualinfo->visualid);
-*/
- return glx_visualinfo;
-#else
- SDL_SetError("X11 driver not configured with OpenGL");
- return NULL;
-#endif
-}
-
-int X11_GL_CreateWindow(_THIS, int w, int h)
-{
- int retval;
-#if SDL_VIDEO_OPENGL_GLX
- XSetWindowAttributes attributes;
- unsigned long mask;
- unsigned long black;
-
- black = (glx_visualinfo->visual == DefaultVisual(SDL_Display,
- SDL_Screen))
- ? BlackPixel(SDL_Display, SDL_Screen) : 0;
- attributes.background_pixel = black;
- attributes.border_pixel = black;
- attributes.colormap = SDL_XColorMap;
- mask = CWBackPixel | CWBorderPixel | CWColormap;
-
- SDL_Window = XCreateWindow(SDL_Display, WMwindow,
- 0, 0, w, h, 0, glx_visualinfo->depth,
- InputOutput, glx_visualinfo->visual,
- mask, &attributes);
- if ( !SDL_Window ) {
- SDL_SetError("Could not create window");
- return -1;
- }
- retval = 0;
-#else
- SDL_SetError("X11 driver not configured with OpenGL");
- retval = -1;
-#endif
- return(retval);
-}
-
-int X11_GL_CreateContext(_THIS)
-{
- int retval;
-#if SDL_VIDEO_OPENGL_GLX
-
- /* We do this to create a clean separation between X and GLX errors. */
- XSync( SDL_Display, False );
- glx_context = this->gl_data->glXCreateContext(GFX_Display,
- glx_visualinfo, NULL, True);
- XSync( GFX_Display, False );
-
- if ( glx_context == NULL ) {
- SDL_SetError("Could not create GL context");
- return(-1);
- }
- if ( X11_GL_MakeCurrent(this) < 0 ) {
- return(-1);
- }
- gl_active = 1;
-
- if ( !glXExtensionSupported(this, "GLX_SGI_swap_control") ) {
- this->gl_data->glXSwapIntervalSGI = NULL;
- }
- if ( !glXExtensionSupported(this, "GLX_MESA_swap_control") ) {
- this->gl_data->glXSwapIntervalMESA = NULL;
- this->gl_data->glXGetSwapIntervalMESA = NULL;
- }
- if ( this->gl_config.swap_control >= 0 ) {
- if ( this->gl_data->glXSwapIntervalMESA ) {
- this->gl_data->glXSwapIntervalMESA(this->gl_config.swap_control);
- } else if ( this->gl_data->glXSwapIntervalSGI ) {
- this->gl_data->glXSwapIntervalSGI(this->gl_config.swap_control);
- }
- }
-#else
- SDL_SetError("X11 driver not configured with OpenGL");
-#endif
- if ( gl_active ) {
- retval = 0;
- } else {
- retval = -1;
- }
- return(retval);
-}
-
-void X11_GL_Shutdown(_THIS)
-{
-#if SDL_VIDEO_OPENGL_GLX
- /* Clean up OpenGL */
- if( glx_context ) {
- this->gl_data->glXMakeCurrent(GFX_Display, None, NULL);
-
- if (glx_context != NULL)
- this->gl_data->glXDestroyContext(GFX_Display, glx_context);
-
- glx_context = NULL;
- }
- gl_active = 0;
-#endif /* SDL_VIDEO_OPENGL_GLX */
-}
-
-#if SDL_VIDEO_OPENGL_GLX
-
-/* Make the current context active */
-int X11_GL_MakeCurrent(_THIS)
-{
- int retval;
-
- retval = 0;
- if ( ! this->gl_data->glXMakeCurrent(GFX_Display,
- SDL_Window, glx_context) ) {
- SDL_SetError("Unable to make GL context current");
- retval = -1;
- }
- XSync( GFX_Display, False );
-
- /* More Voodoo X server workarounds... Grr... */
- SDL_Lock_EventThread();
- X11_CheckDGAMouse(this);
- SDL_Unlock_EventThread();
-
- return(retval);
-}
-
-/* Get attribute data from glX. */
-int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value)
-{
- int retval;
- int glx_attrib = None;
-
- switch( attrib ) {
- case SDL_GL_RED_SIZE:
- glx_attrib = GLX_RED_SIZE;
- break;
- case SDL_GL_GREEN_SIZE:
- glx_attrib = GLX_GREEN_SIZE;
- break;
- case SDL_GL_BLUE_SIZE:
- glx_attrib = GLX_BLUE_SIZE;
- break;
- case SDL_GL_ALPHA_SIZE:
- glx_attrib = GLX_ALPHA_SIZE;
- break;
- case SDL_GL_DOUBLEBUFFER:
- glx_attrib = GLX_DOUBLEBUFFER;
- break;
- case SDL_GL_BUFFER_SIZE:
- glx_attrib = GLX_BUFFER_SIZE;
- break;
- case SDL_GL_DEPTH_SIZE:
- glx_attrib = GLX_DEPTH_SIZE;
- break;
- case SDL_GL_STENCIL_SIZE:
- glx_attrib = GLX_STENCIL_SIZE;
- break;
- case SDL_GL_ACCUM_RED_SIZE:
- glx_attrib = GLX_ACCUM_RED_SIZE;
- break;
- case SDL_GL_ACCUM_GREEN_SIZE:
- glx_attrib = GLX_ACCUM_GREEN_SIZE;
- break;
- case SDL_GL_ACCUM_BLUE_SIZE:
- glx_attrib = GLX_ACCUM_BLUE_SIZE;
- break;
- case SDL_GL_ACCUM_ALPHA_SIZE:
- glx_attrib = GLX_ACCUM_ALPHA_SIZE;
- break;
- case SDL_GL_STEREO:
- glx_attrib = GLX_STEREO;
- break;
- case SDL_GL_MULTISAMPLEBUFFERS:
- glx_attrib = GLX_SAMPLE_BUFFERS_ARB;
- break;
- case SDL_GL_MULTISAMPLESAMPLES:
- glx_attrib = GLX_SAMPLES_ARB;
- break;
- case SDL_GL_ACCELERATED_VISUAL:
- if ( glXExtensionSupported(this, "GLX_EXT_visual_rating") ) {
- glx_attrib = GLX_VISUAL_CAVEAT_EXT;
- retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value);
- if ( *value == GLX_SLOW_VISUAL_EXT ) {
- *value = SDL_FALSE;
- } else {
- *value = SDL_TRUE;
- }
- return retval;
- } else {
- return(-1);
- }
- break;
- case SDL_GL_SWAP_CONTROL:
- if ( this->gl_data->glXGetSwapIntervalMESA ) {
- *value = this->gl_data->glXGetSwapIntervalMESA();
- return(0);
- } else {
- return(-1);
- }
- break;
- default:
- return(-1);
- }
-
- retval = this->gl_data->glXGetConfig(GFX_Display, glx_visualinfo, glx_attrib, value);
-
- return retval;
-}
-
-void X11_GL_SwapBuffers(_THIS)
-{
- this->gl_data->glXSwapBuffers(GFX_Display, SDL_Window);
-}
-
-#endif /* SDL_VIDEO_OPENGL_GLX */
-
-#define OPENGL_REQUIRS_DLOPEN
-#if defined(OPENGL_REQUIRS_DLOPEN) && defined(SDL_LOADSO_DLOPEN)
-#include <dlfcn.h>
-#define GL_LoadObject(X) dlopen(X, (RTLD_NOW|RTLD_GLOBAL))
-#define GL_LoadFunction dlsym
-#define GL_UnloadObject dlclose
-#else
-#define GL_LoadObject SDL_LoadObject
-#define GL_LoadFunction SDL_LoadFunction
-#define GL_UnloadObject SDL_UnloadObject
-#endif
-
-void X11_GL_UnloadLibrary(_THIS)
-{
-#if SDL_VIDEO_OPENGL_GLX
- if ( this->gl_config.driver_loaded ) {
-
- GL_UnloadObject(this->gl_config.dll_handle);
-
- this->gl_data->glXGetProcAddress = NULL;
- this->gl_data->glXChooseVisual = NULL;
- this->gl_data->glXCreateContext = NULL;
- this->gl_data->glXDestroyContext = NULL;
- this->gl_data->glXMakeCurrent = NULL;
- this->gl_data->glXSwapBuffers = NULL;
- this->gl_data->glXSwapIntervalSGI = NULL;
- this->gl_data->glXSwapIntervalMESA = NULL;
- this->gl_data->glXGetSwapIntervalMESA = NULL;
-
- this->gl_config.dll_handle = NULL;
- this->gl_config.driver_loaded = 0;
- }
-#endif
-}
-
-#if SDL_VIDEO_OPENGL_GLX
-
-/* Passing a NULL path means load pointers from the application */
-int X11_GL_LoadLibrary(_THIS, const char* path)
-{
- void* handle = NULL;
-
- if ( gl_active ) {
- SDL_SetError("OpenGL context already created");
- return -1;
- }
-
- if ( path == NULL ) {
- path = SDL_getenv("SDL_VIDEO_GL_DRIVER");
- if ( path == NULL ) {
- path = DEFAULT_OPENGL;
- }
- }
-
- handle = GL_LoadObject(path);
- if ( handle == NULL ) {
-#if defined(OPENGL_REQUIRS_DLOPEN) && defined(SDL_LOADSO_DLOPEN)
- SDL_SetError("Failed loading %s", path);
-#else
- /* SDL_LoadObject() will call SDL_SetError() for us. */
-#endif
- return -1;
- }
-
- /* Unload the old driver and reset the pointers */
- X11_GL_UnloadLibrary(this);
-
- /* Load new function pointers */
- this->gl_data->glXGetProcAddress =
- (void *(*)(const GLubyte *)) GL_LoadFunction(handle, "glXGetProcAddressARB");
- this->gl_data->glXChooseVisual =
- (XVisualInfo *(*)(Display *, int, int *)) GL_LoadFunction(handle, "glXChooseVisual");
- this->gl_data->glXCreateContext =
- (GLXContext (*)(Display *, XVisualInfo *, GLXContext, int)) GL_LoadFunction(handle, "glXCreateContext");
- this->gl_data->glXDestroyContext =
- (void (*)(Display *, GLXContext)) GL_LoadFunction(handle, "glXDestroyContext");
- this->gl_data->glXMakeCurrent =
- (int (*)(Display *, GLXDrawable, GLXContext)) GL_LoadFunction(handle, "glXMakeCurrent");
- this->gl_data->glXSwapBuffers =
- (void (*)(Display *, GLXDrawable)) GL_LoadFunction(handle, "glXSwapBuffers");
- this->gl_data->glXGetConfig =
- (int (*)(Display *, XVisualInfo *, int, int *)) GL_LoadFunction(handle, "glXGetConfig");
- this->gl_data->glXQueryExtensionsString =
- (const char *(*)(Display *, int)) GL_LoadFunction(handle, "glXQueryExtensionsString");
- this->gl_data->glXSwapIntervalSGI =
- (int (*)(int)) GL_LoadFunction(handle, "glXSwapIntervalSGI");
- this->gl_data->glXSwapIntervalMESA =
- (GLint (*)(unsigned)) GL_LoadFunction(handle, "glXSwapIntervalMESA");
- this->gl_data->glXGetSwapIntervalMESA =
- (GLint (*)(void)) GL_LoadFunction(handle, "glXGetSwapIntervalMESA");
-
- if ( (this->gl_data->glXChooseVisual == NULL) ||
- (this->gl_data->glXCreateContext == NULL) ||
- (this->gl_data->glXDestroyContext == NULL) ||
- (this->gl_data->glXMakeCurrent == NULL) ||
- (this->gl_data->glXSwapBuffers == NULL) ||
- (this->gl_data->glXGetConfig == NULL) ||
- (this->gl_data->glXQueryExtensionsString == NULL)) {
- SDL_SetError("Could not retrieve OpenGL functions");
- return -1;
- }
-
- this->gl_config.dll_handle = handle;
- this->gl_config.driver_loaded = 1;
- if ( path ) {
- SDL_strlcpy(this->gl_config.driver_path, path,
- SDL_arraysize(this->gl_config.driver_path));
- } else {
- *this->gl_config.driver_path = '\0';
- }
- return 0;
-}
-
-void *X11_GL_GetProcAddress(_THIS, const char* proc)
-{
- void* handle;
-
- handle = this->gl_config.dll_handle;
- if ( this->gl_data->glXGetProcAddress ) {
- return this->gl_data->glXGetProcAddress((const GLubyte *)proc);
- }
- return GL_LoadFunction(handle, proc);
-}
-
-#endif /* SDL_VIDEO_OPENGL_GLX */
generated by cgit v1.1 at 2024-04-28 16:08:25 +0000