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Fixed bug 3478 - Patch Haiku to use dlopen instead of load_add_on

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Kai Sterker

SDL2 on Haiku so far uses Haiku-specific APIs for loading dynamic objects as add-ons, instead of using dlopen to load them as libraries. This, for example, leads to SDL_mixer not being able to load its audio backends, when compiled with standard settings.

As discussed at https://www.freelists.org/post/haikuports/SDL2-mixer-ogg-music-not-playing-and-other-stuff,2 , the best way to deal with this would be using dlopen instead of load_add_on. The following patch implements this change by dropping the Haiku-specific bits and using dlopen instead.
This commit is contained in:
Sam Lantinga 2016-11-01 10:30:46 -07:00
parent 98d188f5de
commit 9a8642bd6a
6 changed files with 3 additions and 102 deletions
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9
configure vendored
View file

@ -23490,6 +23490,7 @@ fi
CheckDummyVideo
CheckDiskAudio
CheckDummyAudio
CheckDLOPEN
CheckHaikuVideo
CheckHaikuGL
CheckPTHREAD
@ -23518,14 +23519,6 @@ $as_echo "#define SDL_TIMER_HAIKU 1" >>confdefs.h
SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
have_timers=yes
fi
# Set up files for the shared object loading library
if test x$enable_loadso = xyes; then
$as_echo "#define SDL_LOADSO_HAIKU 1" >>confdefs.h
SOURCES="$SOURCES $srcdir/src/loadso/haiku/*.c"
have_loadso=yes
fi
# Set up files for the system power library
if test x$enable_power = xyes; then

7
configure.in
View file

@ -3229,6 +3229,7 @@ AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[defau
CheckDummyVideo
CheckDiskAudio
CheckDummyAudio
CheckDLOPEN
CheckHaikuVideo
CheckHaikuGL
CheckPTHREAD
@ -3251,12 +3252,6 @@ AC_HELP_STRING([--enable-render-d3d], [enable the Direct3D render driver [[defau
SOURCES="$SOURCES $srcdir/src/timer/haiku/*.c"
have_timers=yes
fi
# Set up files for the shared object loading library
if test x$enable_loadso = xyes; then
AC_DEFINE(SDL_LOADSO_HAIKU, 1, [ ])
SOURCES="$SOURCES $srcdir/src/loadso/haiku/*.c"
have_loadso=yes
fi
# Set up files for the system power library
if test x$enable_power = xyes; then
AC_DEFINE(SDL_POWER_HAIKU, 1, [ ])

1
include/SDL_config.h.cmake
View file

@ -252,7 +252,6 @@
#cmakedefine SDL_HAPTIC_XINPUT @SDL_HAPTIC_XINPUT@
/* Enable various shared object loading systems */
#cmakedefine SDL_LOADSO_HAIKU @SDL_LOADSO_HAIKU@
#cmakedefine SDL_LOADSO_DLOPEN @SDL_LOADSO_DLOPEN@
#cmakedefine SDL_LOADSO_DUMMY @SDL_LOADSO_DUMMY@
#cmakedefine SDL_LOADSO_LDG @SDL_LOADSO_LDG@

1
include/SDL_config.h.in
View file

@ -253,7 +253,6 @@
#undef SDL_HAPTIC_XINPUT
/* Enable various shared object loading systems */
#undef SDL_LOADSO_HAIKU
#undef SDL_LOADSO_DLOPEN
#undef SDL_LOADSO_DUMMY
#undef SDL_LOADSO_LDG

16
src/dynapi/SDL_dynapi.c
View file

@ -216,21 +216,7 @@ static SDL_INLINE void *get_sdlapi_entry(const char *fname, const char *sym)
return retval;
}
#elif defined(__HAIKU__)
#include <os/kernel/image.h>
static SDL_INLINE void *get_sdlapi_entry(const char *fname, const char *sym)
{
image_id lib = load_add_on(fname);
void *retval = NULL;
if (lib >= 0) {
if (get_image_symbol(lib, sym, B_SYMBOL_TYPE_TEXT, &retval) != B_NO_ERROR) {
unload_add_on(lib);
retval = NULL;
}
}
return retval;
}
#elif defined(unix) || defined(__unix__) || defined(__APPLE__)
#elif defined(unix) || defined(__unix__) || defined(__APPLE__) || defined(__HAIKU__)
#include <dlfcn.h>
static SDL_INLINE void *get_sdlapi_entry(const char *fname, const char *sym)
{

71
src/loadso/haiku/SDL_sysloadso.c
View file

@ -1,71 +0,0 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#ifdef SDL_LOADSO_HAIKU
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* System dependent library loading routines */
#include <stdio.h>
#include <os/kernel/image.h>
#include "SDL_loadso.h"
void *
SDL_LoadObject(const char *sofile)
{
void *handle = NULL;
image_id library_id = load_add_on(sofile);
if (library_id < 0) {
SDL_SetError(strerror((int) library_id));
} else {
handle = (void *) (library_id);
}
return (handle);
}
void *
SDL_LoadFunction(void *handle, const char *name)
{
void *sym = NULL;
image_id library_id = (image_id) handle;
status_t rc =
get_image_symbol(library_id, name, B_SYMBOL_TYPE_TEXT, &sym);
if (rc != B_NO_ERROR) {
SDL_SetError(strerror(rc));
}
return (sym);
}
void
SDL_UnloadObject(void *handle)
{
image_id library_id;
if (handle != NULL) {
library_id = (image_id) handle;
unload_add_on(library_id);
}
}
#endif /* SDL_LOADSO_HAIKU */
/* vi: set ts=4 sw=4 expandtab: */