libbe/interface/Bitmap.cpp

65 // types defining what is needed to store a color value
169 		   bitmap data (not including any padding) given a color space and a
171 	\param colorSpace The color space.
174 			0, if the color space is not supported.
237 		   data (including any padding) given a color space and a row width.
238 	\param colorSpace The color space.
241 			0, if the color space is not supported.
253 /*!	\brief Returns the brightness of an RGB 24 color.
257 	\return The brightness for the supplied RGB color as a value between 0
272 	This functions defines an metric on the RGB color space. The distance
275 	\param red1 Red component of the first color.
276 	\param green1 Green component of the first color.
277 	\param blue1 Blue component of the first color.
278 	\param red2 Red component of the second color.
279 	\param green2 Green component of the second color.
280 	\param blue2 Blue component of the second color.
384 		   color map.
385 	\param colorMap The completely initialized color map.
414 	// alloc color map
420 	// init color map
423 		// init color list
426 		for (int32 color = 0; color < 32768; color++) {
428 			uint8 red = (color & 0x7c00) >> 7;
429 			uint8 green = (color & 0x3e0) >> 2;
430 			uint8 blue = (color & 0x1f) << 3;
434 			// find closest color
446 			fOwnColorMap->index_map[color] = closestIndex;
455 /*!	\brief Initializes the converter to the supplied color map.
456 	\param colorMap The completely initialized color map.
486 /*!	\brief Returns the palette color index closest to a given RGB 15 color.
490 	\param rgb The RGB 15 color value (R[14:10]G[9:5]B[4:0]).
491 	\return The palette color index for the supplied color.
500 /*!	\brief Returns the palette color index closest to a given RGB 15 color.
504 	\param red Red component of the color (R[4:0]).
505 	\param green Green component of the color (G[4:0]).
506 	\param blue Blue component of the color (B[4:0]).
507 	\return The palette color index for the supplied color.
517 /*!	\brief Returns the palette color index closest to a given RGB 16 color.
521 	\param rgb The RGB 16 color value (R[15:11]G[10:5]B[4:0]).
522 	\return The palette color index for the supplied color.
531 /*!	\brief Returns the palette color index closest to a given RGB 16 color.
535 	\param red Red component of the color (R[4:0]).
536 	\param green Green component of the color (G[5:0]).
537 	\param blue Blue component of the color (B[4:0]).
538 	\return The palette color index for the supplied color.
548 /*!	\brief Returns the palette color index closest to a given RGB 32 color.
552 	\param rgb The RGB 32 color value (R[31:24]G[23:16]B[15:8]).
553 	\return The palette color index for the supplied color.
563 /*!	\brief Returns the palette color index closest to a given RGB 24 color.
567 	\param red Red component of the color.
568 	\param green Green component of the color.
569 	\param blue Blue component of the color.
570 	\return The palette color index for the supplied color.
580 /*!	\brief Returns the palette color index closest to a given Gray 8 color.
584 	\param gray The Gray 8 color value.
585 	\return The palette color index for the supplied color.
594 /*!	\brief Returns the RGB color for a given palette color index.
598 	\param index The palette color index.
599 	\return The color for the supplied palette color index.
608 /*!	\brief Returns the RGB 15 color for a given palette color index.
612 	\param index The palette color index.
613 	\return The color for the supplied palette color index
619 	const rgb_color &color = fColorMap->color_list[index];
620 	return ((color.red & 0xf8) << 7) | ((color.green & 0xf8) << 2)
621 		| (color.blue >> 3);
625 /*!	\brief Returns the RGB 16 color for a given palette color index.
629 	\param index The palette color index.
630 	\return The color for the supplied palette color index
636 	const rgb_color &color = fColorMap->color_list[index];
637 	return ((color.red & 0xf8) << 8) | ((color.green & 0xfc) << 3)
638 		| (color.blue >> 3);
642 /*!	\brief Returns the RGB 24 color for a given palette color index.
646 	\param index The palette color index.
647 	\return The color for the supplied palette color index
653 	const rgb_color &color = fColorMap->color_list[index];
654 	return (color.blue << 24) | (color.red << 8) | (color.green << 16)
655 		| color.alpha;
659 /*!	\brief Returns the RGB 24 color for a given palette color index.
663 	\param index The palette color index.
675 	const rgb_color &color = fColorMap->color_list[index];
676 	red = color.red;
677 	green = color.green;
678 	blue = color.blue;
679 	alpha = color.alpha;
683 /*!	\brief Returns the Gray 8 color for a given palette color index.
687 	\param index The palette color index.
688 	\return The color for the supplied palette color index.
693 	const rgb_color &color = fColorMap->color_list[index];
694 	return brightness_for(color.red, color.green, color.blue);
702 /*!	\brief Returns a PaletteConverter using the system color palette.
745 	inline void Read(rgb_color_value &color)
748 		color.red = pixel.red;
749 		color.green = pixel.green;
750 		color.blue = pixel.blue;
751 		color.alpha = 255;
757 		rgb_color_value color;
758 		Read(color);
759 		gray = brightness_for(color.red, color.green, color.blue);
771 	inline void Read(rgb_color_value &color)
776 		color.red = pixel.rg & 0xf8;
777 		color.green = ((pixel.rg & 0x07) << 5) & ((pixel.gb & 0xe0) >> 3);
778 		color.blue = (pixel.gb & 0x1f) << 3;
779 		color.red |= color.red >> 5;
780 		color.green |= color.green >> 6;
781 		color.blue |= color.blue >> 5;
782 		color.alpha = 255;
788 		rgb_color_value color;
789 		Read(color);
790 		gray = brightness_for(color.red, color.green, color.blue);
802 	inline void Read(rgb_color_value &color)
807 		color.red = (pixel.rg & 0x7c) << 1;
808 		color.green = ((pixel.rg & 0x03) << 6) & ((pixel.gb & 0xe0) >> 2);
809 		color.blue = (pixel.gb & 0x1f) << 3;
810 		color.red |= color.red >> 5;
811 		color.green |= color.green >> 5;
812 		color.blue |= color.blue >> 5;
813 		color.alpha = 255;
819 		rgb_color_value color;
820 		Read(color);
821 		gray = brightness_for(color.red, color.green, color.blue);
832 	inline void Read(rgb_color_value &color)
834 		converter.RGB24ColorForIndex(*BaseReader<uint8>::pixels, color.red, color.green,
835 									 color.blue, color.alpha);
854 	inline void Read(rgb_color_value &color)
856 		color.red = color.green = color.blue = *BaseReader<uint8>::pixels;
857 		color.alpha = 255;
890 	inline void Read(rgb_color_value &color)
893 			color.red = color.green = color.blue = 255;
895 			color.red = color.green = color.blue = 0;
896 		color.alpha = 255;
945 	inline void Write(const rgb_color_value &color)
948 		pixel.red = color.red;
949 		pixel.green = color.green;
950 		pixel.blue = color.blue;
951 		pixel.alpha = color.alpha;
974 	inline void Write(const rgb_color_value &color)
977 		pixel.red = color.red;
978 		pixel.green = color.green;
979 		pixel.blue = color.blue;
1001 	inline void Write(const rgb_color_value &color)
1006 		pixel.rg = (color.red & 0xf8) | (color.green >> 5);
1007 		pixel.gb = ((color.green & 0x1c) << 3) | (color.blue >> 3);
1028 	inline void Write(const rgb_color_value &color)
1033 		pixel.rg = ((color.red & 0xf8) >> 1) | (color.green >> 6);
1034 		pixel.gb = ((color.green & 0x38) << 2) | (color.blue >> 3);
1054 	inline void Write(const rgb_color_value &color)
1056 		*pixels = converter.IndexForRGB24(color.red, color.green, color.blue);
1075 	inline void Write(const rgb_color_value &color)
1077 		*pixels = brightness_for(color.red, color.green, color.blue);
1107 	inline void Write(const rgb_color_value &color)
1109 		Write(brightness_for(color.red, color.green, color.blue));
1121 	\param color_value_t The color value type used to transport a pixel from
1168 				color_value_t color;
1169 				reader.Read(color);
1170 				writer.Write(color);
1177 				color_value_t color;
1178 				reader.Read(color);
1179 				writer.Write(color);
1193 		   it (converted) to another one, which uses color space \c B_GRAY1.
1196 	\param color_value_t The color value type used to transport a pixel from
1242 				color_value_t color;
1243 				reader.Read(color);
1244 				writer.Write(color);
1251 				color_value_t color;
1252 				reader.Read(color);
1253 				writer.Write(color);
1430 	\param colorSpace The bitmap's color space.
1456 	\param colorSpace The bitmap's color space.
1706 /*!	\brief Returns the bitmap's color space.
1707 	\return The bitmap's color space.
1734 	- other color spaces: The source buffer is supposed to contain data
1735 	  according to the specified color space being rowwise padded to int32.
1737 	The currently supported source/target color spaces are
1768 		// If in color space is B_CMAP8, but the bitmap's is another one,
1784 	is supposed to contain data of that color space. \a bpr specifies how
1788 	The currently supported source/target color spaces are
1828 		// TODO: Retrieve color map from BScreen, when available:
1950 	Its data are converted to the color space of this bitmap.
1952 	The currently supported source/target color spaces are
1959 	  or the conversion from or to one of the color spaces is not supported.
2034 	\param colorSpace The bitmap's color space.
2167 	// dependent on color space.