90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
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#include "NativeRendererSupport.h"
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namespace XCEngine::UI::Editor::Host {
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using namespace NativeRendererSupport;
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void NativeRenderer::Resize(UINT width, UINT height) {
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if (!m_renderTarget || width == 0 || height == 0) {
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return;
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}
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const HRESULT hr = m_renderTarget->Resize(D2D1::SizeU(width, height));
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if (hr == D2DERR_RECREATE_TARGET) {
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DiscardRenderTarget();
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}
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}
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bool NativeRenderer::EnsureRenderTarget() {
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if (!m_hwnd || !m_d2dFactory || !m_dwriteFactory) {
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m_lastRenderError = "EnsureRenderTarget requires hwnd, D2D factory, and DWrite factory.";
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return false;
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}
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return CreateDeviceResources();
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}
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void NativeRenderer::DiscardRenderTarget() {
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InvalidateCachedTextureBitmaps(m_renderTarget.Get());
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m_solidBrush.Reset();
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m_renderTarget.Reset();
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}
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bool NativeRenderer::CreateDeviceResources() {
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if (m_renderTarget) {
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return true;
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}
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RECT clientRect = {};
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GetClientRect(m_hwnd, &clientRect);
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const UINT width = static_cast<UINT>((std::max)(clientRect.right - clientRect.left, 1L));
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const UINT height = static_cast<UINT>((std::max)(clientRect.bottom - clientRect.top, 1L));
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const D2D1_RENDER_TARGET_PROPERTIES renderTargetProps = D2D1::RenderTargetProperties(
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D2D1_RENDER_TARGET_TYPE_DEFAULT,
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D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_PREMULTIPLIED),
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kBaseDpi,
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kBaseDpi);
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const D2D1_HWND_RENDER_TARGET_PROPERTIES hwndProps = D2D1::HwndRenderTargetProperties(
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m_hwnd,
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D2D1::SizeU(width, height));
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const HRESULT renderTargetHr = m_d2dFactory->CreateHwndRenderTarget(
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renderTargetProps,
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hwndProps,
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m_renderTarget.ReleaseAndGetAddressOf());
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if (FAILED(renderTargetHr)) {
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m_lastRenderError = HrToString("ID2D1Factory::CreateHwndRenderTarget", renderTargetHr);
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return false;
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}
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const HRESULT brushHr = m_renderTarget->CreateSolidColorBrush(
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D2D1::ColorF(1.0f, 1.0f, 1.0f, 1.0f),
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m_solidBrush.ReleaseAndGetAddressOf());
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if (FAILED(brushHr)) {
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m_lastRenderError = HrToString("ID2D1HwndRenderTarget::CreateSolidColorBrush", brushHr);
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DiscardRenderTarget();
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return false;
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}
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m_renderTarget->SetDpi(kBaseDpi, kBaseDpi);
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m_renderTarget->SetTextAntialiasMode(D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE);
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m_lastRenderError.clear();
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return true;
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}
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void NativeRenderer::InvalidateCachedTextureBitmaps(const ID2D1RenderTarget* renderTarget) {
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for (NativeTextureResource* texture : m_liveTextures) {
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if (texture == nullptr) {
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continue;
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}
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if (renderTarget == nullptr || texture->cachedTarget == renderTarget) {
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texture->cachedBitmap.Reset();
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texture->cachedTarget = nullptr;
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}
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}
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}
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} // namespace XCEngine::UI::Editor::Host
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