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#include "cru/win/graph/win_graph_factory.hpp"
#include "cru/win/exception.hpp"
#include "cru/win/graph/win_brush.hpp"
#include "cru/win/graph/win_font.hpp"
#include "cru/win/graph/win_geometry.hpp"
#include "cru/win/graph/win_text_layout.hpp"
#include <cassert>
#include <cstdlib>
#include <utility>
namespace cru::win::graph {
namespace {
WinGraphFactory* instance = nullptr;
}
} // namespace cru::win::graph
namespace cru::platform::graph {
void GraphFactoryAutoDeleteExitHandler() {
const auto i = ::cru::win::graph::instance; // avoid long namespace prefix
if (i == nullptr) return;
if (i->IsAutoDelete()) delete i;
}
IGraphFactory* IGraphFactory::CreateInstance() {
auto& i = ::cru::win::graph::instance; // avoid long namespace prefix
assert(i == nullptr);
i = new cru::win::graph::WinGraphFactory();
std::atexit(&GraphFactoryAutoDeleteExitHandler);
return i;
}
IGraphFactory* IGraphFactory::GetInstance() {
return ::cru::win::graph::instance;
}
} // namespace cru::platform::graph
namespace cru::win::graph {
WinGraphFactory* WinGraphFactory::GetInstance() { return instance; }
WinGraphFactory::WinGraphFactory() {
UINT creation_flags = D3D11_CREATE_DEVICE_BGRA_SUPPORT;
#ifdef CRU_DEBUG
creation_flags |= D3D11_CREATE_DEVICE_DEBUG;
#endif
const D3D_FEATURE_LEVEL feature_levels[] = {
D3D_FEATURE_LEVEL_11_1, D3D_FEATURE_LEVEL_11_0, D3D_FEATURE_LEVEL_10_1,
D3D_FEATURE_LEVEL_10_0, D3D_FEATURE_LEVEL_9_3, D3D_FEATURE_LEVEL_9_2,
D3D_FEATURE_LEVEL_9_1};
Microsoft::WRL::ComPtr<ID3D11DeviceContext> d3d11_device_context;
ThrowIfFailed(D3D11CreateDevice(
nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, creation_flags,
feature_levels, ARRAYSIZE(feature_levels), D3D11_SDK_VERSION,
&d3d11_device_, nullptr, &d3d11_device_context));
Microsoft::WRL::ComPtr<IDXGIDevice> dxgi_device;
ThrowIfFailed(d3d11_device_->QueryInterface(dxgi_device.GetAddressOf()));
ThrowIfFailed(D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED,
IID_PPV_ARGS(&d2d1_factory_)));
Microsoft::WRL::ComPtr<ID2D1Device> d2d1_device;
ThrowIfFailed(d2d1_factory_->CreateDevice(dxgi_device.Get(), &d2d1_device));
ThrowIfFailed(d2d1_device->CreateDeviceContext(
D2D1_DEVICE_CONTEXT_OPTIONS_NONE, &d2d1_device_context_));
// Identify the physical adapter (GPU or card) this device is runs on.
Microsoft::WRL::ComPtr<IDXGIAdapter> dxgi_adapter;
ThrowIfFailed(dxgi_device->GetAdapter(&dxgi_adapter));
// Get the factory object that created the DXGI device.
ThrowIfFailed(dxgi_adapter->GetParent(IID_PPV_ARGS(&dxgi_factory_)));
ThrowIfFailed(DWriteCreateFactory(
DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory),
reinterpret_cast<IUnknown**>(dwrite_factory_.GetAddressOf())));
ThrowIfFailed(dwrite_factory_->GetSystemFontCollection(
&dwrite_system_font_collection_));
}
WinGraphFactory::~WinGraphFactory() { instance = nullptr; }
platform::graph::ISolidColorBrush* WinGraphFactory::CreateSolidColorBrush(
const ui::Color& color) {
return new WinSolidColorBrush(this, color);
}
platform::graph::IGeometryBuilder* WinGraphFactory::CreateGeometryBuilder() {
return new WinGeometryBuilder(this);
}
platform::graph::IFontDescriptor* WinGraphFactory::CreateFontDescriptor(
const std::wstring_view& font_family, float font_size) {
return new WinFontDescriptor(this, font_family, font_size);
}
platform::graph::ITextLayout* WinGraphFactory::CreateTextLayout(
std::shared_ptr<platform::graph::IFontDescriptor> font, std::wstring text) {
const auto f = std::dynamic_pointer_cast<WinFontDescriptor>(font);
assert(f);
return new WinTextLayout(this, std::move(f), std::move(text));
}
} // namespace cru::win::graph
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