add Canvas constructor & add canvas:blit
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@@ -15,6 +15,9 @@ class ImageData {
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uint width;
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uint height;
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std::unique_ptr<ubyte[]> data;
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void blitRGB_on_RGBA(const ImageData& image, int x, int y);
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void blitMatchingFormat(const ImageData& image, int x, int y);
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public:
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ImageData(ImageFormat format, uint width, uint height);
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ImageData(ImageFormat format, uint width, uint height, std::unique_ptr<ubyte[]> data);
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@@ -25,9 +28,7 @@ public:
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void flipY();
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void drawLine(int x1, int y1, int x2, int y2, const glm::ivec4& color);
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void blitRGB_on_RGBA(const ImageData* image, int x, int y);
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void blitMatchingFormat(const ImageData* image, int x, int y);
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void blit(const ImageData* image, int x, int y);
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void blit(const ImageData& image, int x, int y);
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void extrude(int x, int y, int w, int h);
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void fixAlphaColor();
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