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MobileGL/MobileGL/MG_Backend/Init.cpp
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// MobileGL - MobileGL/MG_Backend/Init.cpp
// Copyright (c) 2025-2026 MobileGL-Dev
// Licensed under the GNU Lesser General Public License v2.1:
// http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
// SPDX-License-Identifier: LGPL-2.1-only
// End of Source File Header
#include "Backends.h"
#include "MG_Util/Types.h"
#include <Config.h>
#include <MG_Util/BackendLoaders/OpenGL/Loader.h>
#include <MG_Util/Converters/MGToStr/GLExtensionConverter.h>
namespace MobileGL {
namespace MG_Config {
UniquePtr<RendererInfo> RendererInfoPtr = nullptr;
} // namespace MG_Config
namespace MG_Backend {
void LogBackendInfo() {
if (MG_Config::RendererInfoPtr) {
MGLOG_I("MobileGL Backend Info:");
MGLOG_I(" Renderer Name: %s", MG_Config::RendererInfoPtr->RendererName.c_str());
MGLOG_I(" Backend Name: %s", MG_Config::RendererInfoPtr->BackendName.c_str());
if (MG_Config::RendererInfoPtr->ExtraVendor) {
MGLOG_I(" Extra Vendor Info: %s", MG_Config::RendererInfoPtr->ExtraVendor->c_str());
}
MGLOG_I(" Target OpenGL Version: %d.%d",
MG_Config::RendererInfoPtr->RendererGLInfo.TargetGLVersion.Major,
MG_Config::RendererInfoPtr->RendererGLInfo.TargetGLVersion.Minor);
MGLOG_I(" Target GLSL Version: %d.%d",
MG_Config::RendererInfoPtr->RendererGLInfo.TargetGLSLVersion.Major,
MG_Config::RendererInfoPtr->RendererGLInfo.TargetGLSLVersion.Minor);
MGLOG_I(" OpenGL Extensions:");
for (const auto& ext : MG_Config::RendererInfoPtr->RendererGLInfo.Extensions) {
MGLOG_I(" - %s", MG_Util::ConvertGLExtToString(ext).c_str());
}
} else {
MGLOG_W(" No renderer info available");
}
}
Bool InitSpecificBackendLibs() {
#if MOBILEGL_BACKEND == MOBILEGL_BACKEND_DILIGENT
// Nothing to do
MGLOG_D("Diligent Engine backend loaded");
return true;
#elif MOBILEGL_BACKEND == MOBILEGL_BACKEND_TYPE_DIRECT_GLES
Bool result = MG_Util::BackendLoader::GLES::Init();
MGLOG_D("DirectGLES backend loaded, GLES version: %d.%d", MG_External::GLES::g_glesCaps.version.Major,
MG_External::GLES::g_glesCaps.version.Minor);
return result;
#else
MGLOG_W("Unknown backend, skipping backend initialization");
return false;
#endif
}
void Init() {
MGLOG_D("Initializing MobileGL Backend...");
#if MOBILEGL_BACKEND == MOBILEGL_BACKEND_DILIGENT
switch (MG_Config::Backend::Diligent::SpecificBackend) {
case MG_Backend::Diligent::SpecificBackendType::Vulkan:
MG_Config::RendererInfoPtr = MakeUnique<RendererInfo>(Diligent::RendererInfoVulkan);
break;
case MG_Backend::Diligent::SpecificBackendType::Metal:
MG_Config::RendererInfoPtr = MakeUnique<RendererInfo>(Diligent::RendererInfoMetal);
break;
default:
throw RuntimeError("Unsupported renderer type");
}
#elif MOBILEGL_BACKEND == MOBILEGL_BACKEND_TYPE_DIRECT_GLES
MG_Config::RendererInfoPtr = MakeUnique<RendererInfo>(DirectGLES::RendererInfo);
#else
MG_Config::RendererInfoPtr = MakeUnique<RendererInfo>(Unknown::RendererInfoUnknown);
#endif
Bool result = InitSpecificBackendLibs();
if (!result) {
MGLOG_W("Failed to initialize MobileGL backend libraries");
return;
}
LogBackendInfo();
}
} // namespace MG_Backend
} // namespace MobileGL