Medusa Slockbower
cbcd699ab0
- Huge refactor on Wayland loading to support retrieval of Protocol headers - Setup EGL to create surfaces for Wayland windows
86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
// =====================================================================================================================
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// fennec, a free and open source game engine
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// Copyright © 2025 Medusa Slockbower
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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// =====================================================================================================================
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#include <fennec/platform/linux/wayland/lib/headers/wayland-client-protocols.h>
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#include <fennec/platform/linux/wayland/lib/loader.h>
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#define FENNEC_LIB(name) bool FENNEC_HAS_LIB_##name;
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#define FENNEC_SYMBOL(ret, fn, ...) using WAYLAND_sym_##fn = ret(*)(__VA_ARGS__); \
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WAYLAND_sym_##fn WAYLAND_##fn;
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#define FENNEC_GLOBAL(type, name) type* WAYLAND_##name;
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#include <fennec/platform/linux/wayland/lib/sym.h>
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namespace fennec
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{
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namespace libwayland
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{
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using shared_object = platform::shared_object;
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struct shared_lib {
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shared_object* obj;
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const cstring name;
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};
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static int _load_count = 0;
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// Create private variables
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#define FENNEC_LIB(lib) static shared_lib _FENNEC_LIB_##lib = { nullptr, FENNEC_LIB_##lib };
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#include <fennec/platform/linux/wayland/lib/sym.h>
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bool load_symbols(platform* platform) {
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if (_load_count++ != 0) {
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return true;
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}
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shared_lib* current_lib = nullptr;
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#define FENNEC_LIB(lib) _FENNEC_LIB_##lib.obj = platform->load_object(_FENNEC_LIB_##lib.name); \
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FENNEC_HAS_LIB_##lib = _FENNEC_LIB_##lib.obj != nullptr; \
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if(not FENNEC_HAS_LIB_##lib) { \
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unload_symbols(platform); \
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return false; \
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} \
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current_lib = &_FENNEC_LIB_##lib;
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#define FENNEC_SYMBOL(ret, fn, ...) WAYLAND_##fn = (WAYLAND_sym_##fn)(platform->find_symbol(current_lib->obj, #fn)); \
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assertf(WAYLAND_##fn != nullptr, "Failed to find symbol: " #fn);
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#define FENNEC_GLOBAL(type, name) WAYLAND_##name = (type*)(platform->find_symbol(current_lib->obj, #name)); \
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assertf(WAYLAND_##name != nullptr, "Failed to find global: " #name);
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#include <fennec/platform/linux/wayland/lib/sym.h>
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return true;
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}
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void unload_symbols(platform* platform) {
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if (--_load_count != 0) {
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return;
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}
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#define FENNEC_LIB(lib) platform->unload_object(_FENNEC_LIB_##lib.obj); \
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_FENNEC_LIB_##lib.obj = nullptr;
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#define FENNEC_SYMBOL(ret, fn, ...) WAYLAND_##fn = nullptr;
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#define FENNEC_GLOBAL(type, name) WAYLAND_##name = nullptr;
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#include <fennec/platform/linux/wayland/lib/sym.h>
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}
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}
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} |