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{ throwError, isNodePattern } from '@jimp/utils';\n\nfunction rotate90degrees(bitmap, dstBuffer, clockwise) {\n const dstOffsetStep = clockwise ? -4 : 4;\n let dstOffset = clockwise ? dstBuffer.length - 4 : 0;\n\n let tmp;\n let x;\n let y;\n let srcOffset;\n\n for (x = 0; x < bitmap.width; x++) {\n for (y = bitmap.height - 1; y >= 0; y--) {\n srcOffset = (bitmap.width * y + x) << 2;\n tmp = bitmap.data.readUInt32BE(srcOffset, true);\n dstBuffer.writeUInt32BE(tmp, dstOffset, true);\n dstOffset += dstOffsetStep;\n }\n }\n}\n\n/**\n * Rotates an image clockwise by an arbitrary number of degrees. 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