diff options
author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-06-19 16:12:17 -0600 |
---|---|---|
committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-06-19 16:26:21 -0600 |
commit | 064001dbe7fd6cbb6bd5c91bdf7f0831b9c351a9 (patch) | |
tree | 1709ef7afbfc4081f8f1a1f247da436d34770ba6 /src/gallium/winsys | |
parent | a8533d54930f8fa989036c197ad20b0778ec0cac (diff) |
egl: use dlsym() to try to identify APIs
Diffstat (limited to 'src/gallium/winsys')
-rw-r--r-- | src/gallium/winsys/egl_xlib/egl_xlib.c | 47 |
1 files changed, 45 insertions, 2 deletions
diff --git a/src/gallium/winsys/egl_xlib/egl_xlib.c b/src/gallium/winsys/egl_xlib/egl_xlib.c index 194bf2842ab..85fc83a4dc6 100644 --- a/src/gallium/winsys/egl_xlib/egl_xlib.c +++ b/src/gallium/winsys/egl_xlib/egl_xlib.c @@ -32,6 +32,7 @@ */ +#include <dlfcn.h> #include <X11/Xutil.h> #include "pipe/p_compiler.h" @@ -202,7 +203,6 @@ xlib_eglInitialize(_EGLDriver *drv, EGLDisplay dpy, static EGLBoolean xlib_eglTerminate(_EGLDriver *drv, EGLDisplay dpy) { - return EGL_TRUE; } @@ -342,6 +342,10 @@ xlib_eglCreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config, /* API-dependent context creation */ switch (ctx->Base.ClientAPI) { + case EGL_OPENGL_ES_API: + _eglLog(_EGL_DEBUG, "Create Context for ES version %d\n", + ctx->Base.ClientVersion); + /* fall-through */ case EGL_OPENGL_API: /* create a softpipe context */ ctx->pipe = softpipe_create(xdrv->screen, xdrv->winsys, NULL); @@ -372,6 +376,8 @@ xlib_eglDestroyContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx) else { /* API-dependent clean-up */ switch (context->Base.ClientAPI) { + case EGL_OPENGL_ES_API: + /* fall-through */ case EGL_OPENGL_API: st_destroy_context(context->Context); break; @@ -555,6 +561,36 @@ xlib_eglSwapBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw) /** + * Determine which API(s) is(are) present by looking for some specific + * global symbols. + */ +static EGLint +find_supported_apis(void) +{ + EGLint mask = 0; + void *handle; + + handle = dlopen(NULL, 0); + + if (dlsym(handle, "st_api_OpenGL_ES1")) + mask |= EGL_OPENGL_ES_BIT; + + if (dlsym(handle, "st_api_OpenGL_ES2")) + mask |= EGL_OPENGL_ES2_BIT; + + if (dlsym(handle, "st_api_OpenGL")) + mask |= EGL_OPENGL_BIT; + + if (dlsym(handle, "st_api_OpenVG")) + mask |= EGL_OPENVG_BIT; + + dlclose(handle); + + return mask; +} + + +/** * This is the main entrypoint into the driver. * Called by libEGL to instantiate an _EGLDriver object. */ @@ -584,7 +620,14 @@ _eglMain(_EGLDisplay *dpy, const char *args) xdrv->Base.API.MakeCurrent = xlib_eglMakeCurrent; xdrv->Base.API.SwapBuffers = xlib_eglSwapBuffers; - xdrv->Base.ClientAPIsMask = EGL_OPENGL_BIT /*| EGL_OPENGL_ES_BIT*/; + xdrv->Base.ClientAPIsMask = find_supported_apis(); + if (xdrv->Base.ClientAPIsMask == 0x0) { + /* the app isn't directly linked with any EGL-supprted APIs + * (such as libGLESv2.so) so use an EGL utility to see what + * APIs might be loaded dynamically on this system. + */ + xdrv->Base.ClientAPIsMask = _eglFindAPIs(); + } xdrv->Base.Name = "Xlib/softpipe"; |