51 lines
1.6 KiB
Nim
51 lines
1.6 KiB
Nim
import pixie/images, pixie/masks, pixie/paths, pixie/common, pixie/blends,
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pixie/fileformats/bmp, pixie/fileformats/png, pixie/fileformats/jpg,
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pixie/fileformats/svg, flatty/binny, os
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export images, masks, paths, common, blends
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type
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FileFormat* = enum
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ffPng, ffBmp, ffJpg
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proc decodeImage*(data: string | seq[uint8]): Image =
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## Loads an image from a memory.
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if data.len > 8 and data.readUint64(0) == cast[uint64](pngSignature):
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decodePng(data)
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elif data.len > 2 and data.readUint16(0) == cast[uint16](jpgStartOfImage):
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decodeJpg(data)
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elif data.len > 2 and data.readStr(0, 2) == bmpSignature:
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decodeBmp(data)
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elif data.len > 5 and data.readStr(0, 5) == svgSignature:
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decodeSvg(data)
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else:
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raise newException(PixieError, "Unsupported image file format")
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proc readImage*(filePath: string): Image =
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## Loads an image from a file.
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decodeImage(readFile(filePath))
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proc encodeImage*(image: Image, fileFormat: FileFormat): string =
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## Encodes an image into memory.
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case fileFormat:
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of ffPng:
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image.encodePng()
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of ffJpg:
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image.encodeJpg()
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of ffBmp:
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image.encodeBmp()
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proc writeFile*(image: Image, filePath: string, fileFormat: FileFormat) =
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## Writes an image to a file.
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writeFile(filePath, image.encodeImage(fileFormat))
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proc writeFile*(image: Image, filePath: string) =
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## Writes an image to a file.
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let fileFormat = case splitFile(filePath).ext:
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of ".png": ffPng
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of ".bmp": ffBmp
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of ".jpg", ".jpeg": ffJpg
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else:
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raise newException(PixieError, "Unsupported image file extension")
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image.writeFile(filePath, fileformat)
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