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[OpenGL] Force-load libGL.so.1 with dlopen() if dlsym fails to find functions

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This commit is contained in:
jackun 2020-03-13 09:35:14 +02:00
parent e0ce0493f7
commit 297b44bfe6
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GPG Key ID: 119DB3F1D05A9ED3
1 changed files with 13 additions and 5 deletions
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16
src/gl/inject.cpp
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@ -162,11 +162,19 @@ void* get_proc_address(const char* name) {
} }
void* get_glx_proc_address(const char* name) { void* get_glx_proc_address(const char* name) {
if (!gl.Load()) {
// Force load libGL then. If it still doesn't find it, get_proc_address should quit the program
void *handle = dlopen("libGL.so.1", RTLD_GLOBAL | RTLD_LAZY | RTLD_DEEPBIND);
if (!handle)
std::cerr << "MangoHud: couldn't find libGL.so.1" << std::endl;
gl.Load(); gl.Load();
}
void *func = gl.glXGetProcAddress( (const unsigned char*) name ); void *func = nullptr;
if (gl.glXGetProcAddress)
func = gl.glXGetProcAddress( (const unsigned char*) name );
if (!func) if (!func && gl.glXGetProcAddressARB)
func = gl.glXGetProcAddressARB( (const unsigned char*) name ); func = gl.glXGetProcAddressARB( (const unsigned char*) name );
if (!func) if (!func)
@ -297,7 +305,7 @@ EXPORT_C_(void *) glXGetProcAddress(const unsigned char* procName) {
if (func) if (func)
return func; return func;
return gl.glXGetProcAddress(procName); return get_glx_proc_address((const char*)procName);
} }
EXPORT_C_(void *) glXGetProcAddressARB(const unsigned char* procName) { EXPORT_C_(void *) glXGetProcAddressARB(const unsigned char* procName) {
@ -309,7 +317,7 @@ EXPORT_C_(void *) glXGetProcAddressARB(const unsigned char* procName) {
if (func) if (func)
return func; return func;
return gl.glXGetProcAddressARB(procName); return get_glx_proc_address((const char*)procName);
} }
#ifdef HOOK_DLSYM #ifdef HOOK_DLSYM