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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2014 Citra Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <memory>
#include "common/logging.h"
#include "common/settings.h"
#include "core/core.h"
#include "core/frontend/emu_window.h"
#include "core/frontend/graphics_context.h"
#include "video_core/host1x/gpu_device_memory_manager.h"
#include "video_core/host1x/host1x.h"
#include "video_core/renderer_base.h"
#include "video_core/renderer_null/renderer_null.h"
#ifdef HAS_OPENGL
#include "video_core/renderer_opengl/renderer_opengl.h"
#endif
#include "video_core/renderer_vulkan/renderer_vulkan.h"
#include "video_core/video_core.h"
namespace {
std::unique_ptr<VideoCore::RendererBase> CreateRenderer(Core::System& system, Core::Frontend::EmuWindow& emu_window, Tegra::GPU& gpu, std::unique_ptr<Core::Frontend::GraphicsContext> context) {
[[maybe_unused]] auto& device_memory = system.Host1x().MemoryManager();
switch (Settings::values.renderer_backend.GetValue()) {
#ifdef HAS_OPENGL
case Settings::RendererBackend::OpenGL_GLSL:
case Settings::RendererBackend::OpenGL_GLASM:
case Settings::RendererBackend::OpenGL_SPIRV:
return std::make_unique<OpenGL::RendererOpenGL>(emu_window, device_memory, gpu, std::move(context));
#endif
case Settings::RendererBackend::Vulkan:
return std::make_unique<Vulkan::RendererVulkan>(emu_window, device_memory, gpu, std::move(context));
case Settings::RendererBackend::Null:
return std::make_unique<Null::RendererNull>(emu_window, gpu, std::move(context));
default:
return nullptr;
}
}
} // Anonymous namespace
namespace VideoCore {
/// @brief Creates an emulated GPU instance using the given system context.
void CreateGPU(std::optional<Tegra::GPU>& gpu, Core::Frontend::EmuWindow& emu_window, Core::System& system) {
Settings::UpdateRescalingInfo();
const auto nvdec_value = Settings::values.nvdec_emulation.GetValue();
const bool use_nvdec = nvdec_value != Settings::NvdecEmulation::Off;
const bool use_async = Settings::values.use_asynchronous_gpu_emulation.GetValue();
gpu.emplace(system, use_async, use_nvdec);
auto context = emu_window.CreateSharedContext();
auto scope = context->Acquire();
try {
auto renderer = CreateRenderer(system, emu_window, *gpu, std::move(context));
gpu->BindRenderer(std::move(renderer));
} catch (const std::runtime_error& exception) {
scope.Cancel();
LOG_ERROR(HW_GPU, "Failed to initialize GPU: {}", exception.what());
gpu.reset();
}
}
} // namespace VideoCore
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