BMP - Revision history

Compn: samples link update

2009-03-21T21:33:45Z

samples link update

← Older revision		Revision as of 14:33, 21 March 2009
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	* Company: [[Microsoft]]		* Company: [[Microsoft]]
	* Samples: http://samples.mplayerhq.hu/bmp-files/		* Samples: http://samples.mplayerhq.hu/image-samples/bmp-files/

	BMP is the format used for storing lossless image data on Microsoft windows. In recent years Microsoft has started to favor other formats such as JPEG and [[Portable Network Graphics\|PNG]], but for many years BMP was the predominant format for [[lossless compression\|lossless]] image storage.		BMP is the format used for storing lossless image data on Microsoft windows. In recent years Microsoft has started to favor other formats such as JPEG and [[Portable Network Graphics\|PNG]], but for many years BMP was the predominant format for [[lossless compression\|lossless]] image storage.

Multimedia Mike: proper Wiki link

2007-10-30T21:25:11Z

proper Wiki link

← Older revision		Revision as of 14:25, 30 October 2007
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	* Samples: http://samples.mplayerhq.hu/bmp-files/		* Samples: http://samples.mplayerhq.hu/bmp-files/

	BMP is the format used for storing lossless image data on Microsoft windows. In recent years Microsoft has started to favor other formats such as [[JPEG~~\|jpeg]]~~ and [[PNG~~\|png~~]], but for many years ~~bmp~~ was the predominant format for [[lossless compression\|lossless]] image storage.		BMP is the format used for storing lossless image data on Microsoft windows. In recent years Microsoft has started to favor other formats such as JPEG and [[Portable Network Graphics\|PNG]], but for many years BMP was the predominant format for [[lossless compression\|lossless]] image storage.
	You can also find bitmap data embedded as resources in [[PE]] files and [[ICO]] files amongst other Microsoft formats.		You can also find bitmap data embedded as resources in [[PE]] files and [[ICO]] files amongst other Microsoft formats.
	The article [[Microsoft_RLE\|RLE]] talks about the compression scheme used in Microsoft bitmap files.		The article [[Microsoft_RLE\|RLE]] talks about the compression scheme used in Microsoft bitmap files.

Ivo: add RGBTRIPLE

2007-09-06T11:18:01Z

add RGBTRIPLE

← Older revision		Revision as of 04:18, 6 September 2007
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	* BMP Header (BITMAPFILEHEADER)		* BMP Header (BITMAPFILEHEADER)
	* Bitmap information (BITMAPCOREHEADER, BITMAPINFOHEADER, BITMAPV4HEADER '''or''' BITMAPV5HEADER)		* Bitmap information (BITMAPCOREHEADER, BITMAPINFOHEADER, BITMAPV4HEADER '''or''' BITMAPV5HEADER)
	* Colormap (array of RGBQUAD)		* Colormap (array of RGBTRIPLE or RGBQUAD)
	* Bitmap data		* Bitmap data

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	int32_t number_of_colors; // only relevant for bits_per_pixel < 16; if set to zero, it's assumed to be 2^bits_per_pixel		int32_t number_of_colors; // only relevant for bits_per_pixel < 16; if set to zero, it's assumed to be 2^bits_per_pixel
	int32_t number_of_important_colors; // 0 means all colors are important		int32_t number_of_important_colors; // 0 means all colors are important
	}		} BITMAPINFOHEADER;

			struct RGBTRIPLE {
			uint8_t blue;
			uint8_t green;
			uint8_t red;
			} RGBTRIPLE;

	struct RGBQUAD {		struct RGBQUAD {
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	uint8_t red;		uint8_t red;
	uint8_t reserved; // or alpha		uint8_t reserved; // or alpha
	}		} RGBQUAD;

	* Structure elements are written in little-endian format.		* Structure elements are written in little-endian format.
	* Each scanline of bitmap data is padded with zeroes to reach a multiple of four bytes.		* Each scanline of bitmap data is padded with zeroes to reach a multiple of four bytes.
	* Colormap data is only written for bits_per_pixel < 16.		* Colormap data is only written for bits_per_pixel < 16.
			* For files containing the 12-byte BITMAPCOREHEADER, colormaps are arrays of RGBTRIPLE. In all other cases, they are arrays of RGBQUAD.
	* The most common BMP files consist of BITMAPFILEHEADER, BITMAPINFOHEADER, possible colormap and the bitmap data.		* The most common BMP files consist of BITMAPFILEHEADER, BITMAPINFOHEADER, possible colormap and the bitmap data.


	[[Category:Image Formats]]		[[Category:Image Formats]]

Ivo: first draft of format description

2007-09-06T11:06:51Z

first draft of format description

@@ Line 5: / Line 5: @@
 You can also find bitmap data embedded as resources in [[PE]] files and [[ICO]] files amongst other Microsoft formats.
 The article [[Microsoft_RLE|RLE]] talks about the compression scheme used in Microsoft bitmap files.
 [[Category:Image Formats]]

Multimedia Mike: fix sample link

2007-09-02T20:01:41Z

fix sample link

← Older revision		Revision as of 13:01, 2 September 2007
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	* Company: [[Microsoft]]		* Company: [[Microsoft]]
	* Samples: ~~[http://samples.mplayerhq.hu/V-codecs/RLE/~~ http://samples.mplayerhq.hu/bmp-files/]		* Samples: http://samples.mplayerhq.hu/bmp-files/

	BMP is the format used for storing lossless image data on Microsoft windows. In recent years Microsoft has started to favor other formats such as [[JPEG\|jpeg]] and [[PNG\|png]], but for many years bmp was the predominant format for [[lossless compression\|lossless]] image storage.		BMP is the format used for storing lossless image data on Microsoft windows. In recent years Microsoft has started to favor other formats such as [[JPEG\|jpeg]] and [[PNG\|png]], but for many years bmp was the predominant format for [[lossless compression\|lossless]] image storage.

Crybaby: /* add link to samples, UK eng -> US eng 'favour'. */

2007-08-31T01:33:12Z

add link to samples, UK eng -> US eng 'favour'.

← Older revision		Revision as of 18:33, 30 August 2007
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	BMP is the format used for storing lossless image data on ~~microsoft~~ windows. In recent years ~~microsoft~~ has started to ~~favour~~ other formats such as [[JPEG\|jpeg]] and [[PNG\|png]], but for many years bmp was the predominant format for [[lossless compression\|lossless]] image storage.		* Company: [[Microsoft]]
	You can also find bitmap data embedded as resources in [[PE]] files and [[ICO]] files amongst other ~~microsoft~~ formats.		* Samples: [http://samples.mplayerhq.hu/V-codecs/RLE/ http://samples.mplayerhq.hu/bmp-files/]
	The article [[Microsoft_RLE\|RLE]] talks about the compression scheme used in ~~microsoft~~ bitmap files.
			BMP is the format used for storing lossless image data on Microsoft windows. In recent years Microsoft has started to favor other formats such as [[JPEG\|jpeg]] and [[PNG\|png]], but for many years bmp was the predominant format for [[lossless compression\|lossless]] image storage.
			You can also find bitmap data embedded as resources in [[PE]] files and [[ICO]] files amongst other Microsoft formats.
			The article [[Microsoft_RLE\|RLE]] talks about the compression scheme used in Microsoft bitmap files.
	[[Category:Image Formats]]		[[Category:Image Formats]]

DonDiego: link fix

2007-06-04T09:51:15Z

link fix

← Older revision		Revision as of 02:51, 4 June 2007
Line 1:		Line 1:
	BMP is the format used for storing lossless image data on microsoft windows. In recent years microsoft has started to favour other formats such as [[JPEG\|jpeg]] and [[PNG\|png]], but for many years bmp was the predominant format for [[lossless]] image storage.		BMP is the format used for storing lossless image data on microsoft windows. In recent years microsoft has started to favour other formats such as [[JPEG\|jpeg]] and [[PNG\|png]], but for many years bmp was the predominant format for [[lossless compression\|lossless]] image storage.
	You can also find bitmap data embedded as resources in [[PE]] files and [[ICO]] files amongst other microsoft formats.		You can also find bitmap data embedded as resources in [[PE]] files and [[ICO]] files amongst other microsoft formats.
	The article [[Microsoft_RLE\|RLE]] talks about the compression scheme used in microsoft bitmap files.		The article [[Microsoft_RLE\|RLE]] talks about the compression scheme used in microsoft bitmap files.
	[[Category:Image Formats]]		[[Category:Image Formats]]

Crybaby: Bmp moved to BMP

2007-06-01T03:26:30Z

Bmp moved to BMP

← Older revision	Revision as of 20:26, 31 May 2007
(No difference)

Crybaby: added category

2007-05-29T04:45:55Z

added category

← Older revision		Revision as of 21:45, 28 May 2007
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	You can also find bitmap data embedded as resources in [[PE]] files and [[ICO]] files amongst other microsoft formats.		You can also find bitmap data embedded as resources in [[PE]] files and [[ICO]] files amongst other microsoft formats.
	The article [[Microsoft_RLE\|RLE]] talks about the compression scheme used in microsoft bitmap files.		The article [[Microsoft_RLE\|RLE]] talks about the compression scheme used in microsoft bitmap files.
			[[Category:Image Formats]]

Crybaby at 04:33, 29 May 2007

2007-05-29T04:33:39Z

← Older revision		Revision as of 21:33, 28 May 2007
Line 1:		Line 1:
	BMP is the format used for storing lossless image data on microsoft windows. In recent years microsoft has started to favour other formats such as [[jpeg]] and [[png]], but for many years bmp was the predominant format for [[lossless]] image storage.		BMP is the format used for storing lossless image data on microsoft windows. In recent years microsoft has started to favour other formats such as [[JPEG\|jpeg]] and [[PNG\|png]], but for many years bmp was the predominant format for [[lossless]] image storage.
	You can also find bitmap data embedded as resources in [[PE]] files and [[ICO]] files amongst other microsoft formats.		You can also find bitmap data embedded as resources in [[PE]] files and [[ICO]] files amongst other microsoft formats.
	The article [[Microsoft_RLE\|RLE]] talks about the compression scheme used in microsoft bitmap files.		The article [[Microsoft_RLE\|RLE]] talks about the compression scheme used in microsoft bitmap files.