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GLContext: Dynamically load wayland-egl

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This commit is contained in:
Connor McLaughlin
2022-07-25 17:21:15 +10:00
parent 5d89715b17
commit c233a8042f
5 changed files with 46 additions and 11 deletions
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1
src/common/CMakeLists.txt
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@ -205,7 +205,6 @@ if(USE_WAYLAND)
gl/context_egl_wayland.h
)
target_compile_definitions(common PRIVATE "-DUSE_WAYLAND=1")
target_link_libraries(common PRIVATE Wayland::Egl)
endif()
if(APPLE)

44
src/common/gl/context_egl_wayland.cpp
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@ -1,19 +1,25 @@
#include "context_egl_wayland.h"
#include <wayland-egl.h>
#include "../log.h"
#include <dlfcn.h>
Log_SetChannel(ContextEGLWayland);
namespace GL {
static const char* WAYLAND_EGL_MODNAME = "libwayland-egl.so.1";
ContextEGLWayland::ContextEGLWayland(const WindowInfo& wi) : ContextEGL(wi) {}
ContextEGLWayland::~ContextEGLWayland()
{
if (m_wl_window)
wl_egl_window_destroy(m_wl_window);
m_wl_egl_window_destroy(m_wl_window);
if (m_wl_module)
dlclose(m_wl_module);
}
std::unique_ptr<Context> ContextEGLWayland::Create(const WindowInfo& wi, const Version* versions_to_try,
size_t num_versions_to_try)
{
std::unique_ptr<ContextEGLWayland> context = std::make_unique<ContextEGLWayland>(wi);
if (!context->Initialize(versions_to_try, num_versions_to_try))
if (!context->LoadModule() || !context->Initialize(versions_to_try, num_versions_to_try))
return nullptr;
return context;
@ -24,7 +30,7 @@ std::unique_ptr<Context> ContextEGLWayland::CreateSharedContext(const WindowInfo
std::unique_ptr<ContextEGLWayland> context = std::make_unique<ContextEGLWayland>(wi);
context->m_display = m_display;
if (!context->CreateContextAndSurface(m_version, m_context, false))
if (!context->LoadModule() || !context->CreateContextAndSurface(m_version, m_context, false))
return nullptr;
return context;
@ -33,7 +39,7 @@ std::unique_ptr<Context> ContextEGLWayland::CreateSharedContext(const WindowInfo
void ContextEGLWayland::ResizeSurface(u32 new_surface_width, u32 new_surface_height)
{
if (m_wl_window)
wl_egl_window_resize(m_wl_window, new_surface_width, new_surface_height, 0, 0);
m_wl_egl_window_resize(m_wl_window, new_surface_width, new_surface_height, 0, 0);
ContextEGL::ResizeSurface(new_surface_width, new_surface_height);
}
@ -42,15 +48,39 @@ EGLNativeWindowType ContextEGLWayland::GetNativeWindow(EGLConfig config)
{
if (m_wl_window)
{
wl_egl_window_destroy(m_wl_window);
m_wl_egl_window_destroy(m_wl_window);
m_wl_window = nullptr;
}
m_wl_window =
wl_egl_window_create(static_cast<wl_surface*>(m_wi.window_handle), m_wi.surface_width, m_wi.surface_height);
m_wl_egl_window_create(static_cast<wl_surface*>(m_wi.window_handle), m_wi.surface_width, m_wi.surface_height);
if (!m_wl_window)
return {};
return reinterpret_cast<EGLNativeWindowType>(m_wl_window);
}
bool ContextEGLWayland::LoadModule()
{
m_wl_module = dlopen(WAYLAND_EGL_MODNAME, RTLD_NOW | RTLD_GLOBAL);
if (!m_wl_module)
{
Log_ErrorPrintf("Failed to load %s.", WAYLAND_EGL_MODNAME);
return false;
}
m_wl_egl_window_create =
reinterpret_cast<decltype(m_wl_egl_window_create)>(dlsym(m_wl_module, "wl_egl_window_create"));
m_wl_egl_window_destroy =
reinterpret_cast<decltype(m_wl_egl_window_destroy)>(dlsym(m_wl_module, "wl_egl_window_destroy"));
m_wl_egl_window_resize =
reinterpret_cast<decltype(m_wl_egl_window_resize)>(dlsym(m_wl_module, "wl_egl_window_resize"));
if (!m_wl_egl_window_create || !m_wl_egl_window_destroy || !m_wl_egl_window_resize)
{
Log_ErrorPrintf("Failed to load one or more functions from %s.", WAYLAND_EGL_MODNAME);
return false;
}
return true;
}
} // namespace GL

7
src/common/gl/context_egl_wayland.h
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@ -20,7 +20,14 @@ protected:
EGLNativeWindowType GetNativeWindow(EGLConfig config) override;
private:
bool LoadModule();
wl_egl_window* m_wl_window = nullptr;
void* m_wl_module = nullptr;
wl_egl_window* (*m_wl_egl_window_create)(struct wl_surface* surface, int width, int height);
void (*m_wl_egl_window_destroy)(struct wl_egl_window* egl_window);
void (*m_wl_egl_window_resize)(struct wl_egl_window* egl_window, int width, int height, int dx, int dy);
};
} // namespace GL