Copy irrlichtmt to <root>/irr/

irr/src/CImage.h

@@ -0,0 +1,74 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#pragma once
+
+#include "IImage.h"
+#include "rect.h"
+
+namespace irr
+{
+namespace video
+{
+
+//! check sanity of image dimensions to prevent issues later, for use by CImageLoaders
+inline bool checkImageDimensions(u32 width, u32 height)
+{
+	// 4 * 23000 * 23000 is just under S32_MAX
+	return width <= 23000 && height <= 23000;
+}
+
+//! IImage implementation with a lot of special image operations for
+//! 16 bit A1R5G5B5/32 Bit A8R8G8B8 images, which are used by the SoftwareDevice.
+class CImage : public IImage
+{
+public:
+	//! constructor from raw image data
+	/** \param useForeignMemory: If true, the image will use the data pointer
+	directly and own it from now on, which means it will also try to delete [] the
+	data when the image will be destructed. If false, the memory will by copied. */
+	CImage(ECOLOR_FORMAT format, const core::dimension2d<u32> &size, void *data,
+			bool ownForeignMemory = true, bool deleteMemory = true);
+
+	//! constructor for empty image
+	CImage(ECOLOR_FORMAT format, const core::dimension2d<u32> &size);
+
+	//! returns a pixel
+	SColor getPixel(u32 x, u32 y) const override;
+
+	//! sets a pixel
+	void setPixel(u32 x, u32 y, const SColor &color, bool blend = false) override;
+
+	//! copies this surface into another, if it has the exact same size and format.
+	bool copyToNoScaling(void *target, u32 width, u32 height, ECOLOR_FORMAT format, u32 pitch = 0) const override;
+
+	//! copies this surface into another, scaling it to fit.
+	void copyToScaling(void *target, u32 width, u32 height, ECOLOR_FORMAT format, u32 pitch = 0) override;
+
+	//! copies this surface into another, scaling it to fit.
+	void copyToScaling(IImage *target) override;
+
+	//! copies this surface into another
+	void copyTo(IImage *target, const core::position2d<s32> &pos = core::position2d<s32>(0, 0)) override;
+
+	//! copies this surface into another
+	void copyTo(IImage *target, const core::position2d<s32> &pos, const core::rect<s32> &sourceRect, const core::rect<s32> *clipRect = 0) override;
+
+	//! copies this surface into another, using the alpha mask, an cliprect and a color to add with
+	virtual void copyToWithAlpha(IImage *target, const core::position2d<s32> &pos,
+			const core::rect<s32> &sourceRect, const SColor &color,
+			const core::rect<s32> *clipRect = 0, bool combineAlpha = false) override;
+
+	//! copies this surface into another, scaling it to fit, applying a box filter
+	void copyToScalingBoxFilter(IImage *target, s32 bias = 0, bool blend = false) override;
+
+	//! fills the surface with given color
+	void fill(const SColor &color) override;
+
+private:
+	inline SColor getPixelBox(s32 x, s32 y, s32 fx, s32 fy, s32 bias) const;
+};
+
+} // end namespace video
+} // end namespace irr