From 7b4b334e777e573040569801d3b4ab28a606a127 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Thu, 5 May 2022 19:31:18 +0800
Subject: ...

---
 include/cru/platform/graphics/ImageFactory.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'include/cru/platform/graphics')

diff --git a/include/cru/platform/graphics/ImageFactory.h b/include/cru/platform/graphics/ImageFactory.h
index 2a7902b2..e74f57e0 100644
--- a/include/cru/platform/graphics/ImageFactory.h
+++ b/include/cru/platform/graphics/ImageFactory.h
@@ -7,5 +7,12 @@ namespace cru::platform::graphics {
 struct CRU_PLATFORM_GRAPHICS_API IImageFactory
     : public virtual IGraphicsResource {
   virtual std::unique_ptr<IImage> DecodeFromStream(io::Stream* stream) = 0;
+
+  /**
+   * \brief Create an empty bitmap with given width and height.
+   * \remarks Implementation should ensure that the bitmap supports alpha
+   * channel. It had better be in 32-bit rgba format.
+   */
+  virtual std::unique_ptr<IImage> CreateBitmap(int width, int height) = 0;
 };
 }  // namespace cru::platform::graphics
-- 
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