diff options
author | Chia-I Wu <olvaffe@gmail.com> | 2010-01-22 16:31:43 +0800 |
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committer | Chia-I Wu <olvaffe@gmail.com> | 2010-01-22 16:45:28 +0800 |
commit | 3c967a920718c2a74996ac23b8c1964915db88c2 (patch) | |
tree | c0dc48858a5abaa75cc7bb68682a7ef3e1136593 /src/gallium/state_trackers/egl/common/egl_st.c | |
parent | 3a4b7d3071c7377d8fbe37a0a2f486b919ff53cb (diff) |
st/egl_g3d: Rename to st/egl.
Simply the name to egl.
Diffstat (limited to 'src/gallium/state_trackers/egl/common/egl_st.c')
-rw-r--r-- | src/gallium/state_trackers/egl/common/egl_st.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/egl/common/egl_st.c b/src/gallium/state_trackers/egl/common/egl_st.c new file mode 100644 index 0000000000..a88ff911cd --- /dev/null +++ b/src/gallium/state_trackers/egl/common/egl_st.c @@ -0,0 +1,131 @@ +/* + * Mesa 3-D graphics library + * Version: 7.8 + * + * Copyright (C) 2009-2010 Chia-I Wu <olv@0xlab.org> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <dlfcn.h> +#include "pipe/p_compiler.h" +#include "util/u_memory.h" +#include "egllog.h" +#include "EGL/egl.h" /* for EGL_api_BIT */ + +#include "egl_st.h" + +#ifndef HAVE_DLADDR +#define HAVE_DLADDR 1 +#endif + +#if HAVE_DLADDR + +static const char * +egl_g3d_st_names[] = { +#define ST_PUBLIC(name, ...) #name, +#include "st_public_tmp.h" + NULL +}; + +static boolean +egl_g3d_fill_st(struct egl_g3d_st *stapi, void *sym) +{ + st_proc *procs = (st_proc *) stapi; + void *handle; + Dl_info info; + const char **name; + + if (!dladdr(sym, &info)) + return FALSE; + handle = dlopen(info.dli_fname, RTLD_LAZY | RTLD_LOCAL | RTLD_NODELETE); + if (!handle) + return FALSE; + + for (name = egl_g3d_st_names; *name; name++) { + st_proc proc = (st_proc) dlsym(handle, *name); + if (!proc) { + _eglLog(_EGL_WARNING, "%s is missing in %s", *name, info.dli_fname); + memset(stapi, 0, sizeof(*stapi)); + dlclose(handle); + return FALSE; + } + *procs++ = proc; + } + + dlclose(handle); + return TRUE; +} + +#else /* HAVE_DLADDR */ + +static boolean +egl_g3d_fill_st(struct egl_g3d_st *stapi, void *sym) +{ +#define ST_PUBLIC(name, ...) stapi->name = name; +#include "st_public_tmp.h" + return TRUE; +} + +#endif /* HAVE_DLADDR */ + +static boolean +egl_g3d_init_st(struct egl_g3d_st *stapi, const char *api) +{ + void *handle, *sym; + boolean res = FALSE; + + /* already initialized */ + if (stapi->st_notify_swapbuffers != NULL) + return TRUE; + + handle = dlopen(NULL, RTLD_LAZY | RTLD_LOCAL); + if (!handle) + return FALSE; + + sym = dlsym(handle, api); + if (sym && egl_g3d_fill_st(stapi, sym)) + res = TRUE; + + dlclose(handle); + return res; +} + +static struct { + const char *symbol; + EGLint api_bit; +} egl_g3d_st_info[NUM_EGL_G3D_STS] = { + { "st_api_OpenGL_ES1", EGL_OPENGL_ES_BIT }, + { "st_api_OpenVG", EGL_OPENVG_BIT }, + { "st_api_OpenGL_ES2", EGL_OPENGL_ES2_BIT }, + { "st_api_OpenGL", EGL_OPENGL_BIT }, +}; + +const struct egl_g3d_st * +egl_g3d_get_st(enum egl_g3d_st_api api) +{ + static struct egl_g3d_st all_trackers[NUM_EGL_G3D_STS]; + + if (egl_g3d_init_st(&all_trackers[api], egl_g3d_st_info[api].symbol)) { + all_trackers[api].api_bit = egl_g3d_st_info[api].api_bit; + return &all_trackers[api]; + } + else { + return NULL; + } +} |