From 9e0c9d3499bc50c3534b4dc500d8b5d0b5f22752 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sun, 15 May 2022 13:56:40 +0800
Subject: ...

---
 src/platform/graphics/direct2d/Image.cpp | 45 ++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 src/platform/graphics/direct2d/Image.cpp

(limited to 'src/platform/graphics/direct2d/Image.cpp')

diff --git a/src/platform/graphics/direct2d/Image.cpp b/src/platform/graphics/direct2d/Image.cpp
new file mode 100644
index 00000000..78cccd6a
--- /dev/null
+++ b/src/platform/graphics/direct2d/Image.cpp
@@ -0,0 +1,45 @@
+#include "cru/platform/graphics/direct2d/Image.h"
+#include <d2d1_1.h>
+#include "cru/common/platform/win/Exception.h"
+#include "cru/platform/graphics/direct2d/ConvertUtil.h"
+#include "cru/platform/graphics/direct2d/Exception.h"
+#include "cru/platform/graphics/direct2d/Factory.h"
+#include "cru/platform/graphics/direct2d/Painter.h"
+
+namespace cru::platform::graphics::direct2d {
+Direct2DImage::Direct2DImage(DirectGraphicsFactory* graphics_factory,
+                             Microsoft::WRL::ComPtr<ID2D1Bitmap1> d2d_bitmap)
+    : DirectGraphicsResource(graphics_factory),
+      d2d_bitmap_(std::move(d2d_bitmap)) {
+  Expects(d2d_bitmap_);
+}
+
+Direct2DImage::~Direct2DImage() {}
+
+float Direct2DImage::GetWidth() { return d2d_bitmap_->GetSize().width; }
+
+float Direct2DImage::GetHeight() { return d2d_bitmap_->GetSize().height; }
+
+std::unique_ptr<IImage> Direct2DImage::CreateWithRect(const Rect& rect) {
+  auto device_context = GetDirectFactory()->CreateD2D1DeviceContext();
+  Microsoft::WRL::ComPtr<ID2D1Bitmap1> bitmap;
+  ThrowIfFailed(device_context->CreateBitmap(
+      D2D1::SizeU(rect.width, rect.height), nullptr, 0,
+      D2D1::BitmapProperties1(D2D1_BITMAP_OPTIONS_TARGET,
+                              D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM,
+                                                D2D1_ALPHA_MODE_PREMULTIPLIED)),
+      &bitmap));
+  device_context->SetTarget(bitmap.Get());
+  device_context->BeginDraw();
+  device_context->DrawBitmap(d2d_bitmap_.Get(), Convert(rect));
+  ThrowIfFailed(device_context->EndDraw());
+  return std::make_unique<Direct2DImage>(GetDirectFactory(), std::move(bitmap));
+}
+
+std::unique_ptr<IPainter> Direct2DImage::CreatePainter() {
+  auto device_context = GetDirectFactory()->CreateD2D1DeviceContext();
+  device_context->SetTarget(d2d_bitmap_.Get());
+  return std::make_unique<D2DDeviceContextPainter>(device_context.Detach(),
+                                                   true);
+}
+}  // namespace cru::platform::graphics::direct2d
-- 
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