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/* pixels are scaled up by this factor */
#define QRCODE_SCALE 2
/* this is the maximum scale factor */
#define QRCODE_MAX_SCALE 8
/* width of the border
* this is defined to at least 4, but works well with less */
# define QRCODE_BORDER 1
/* this is the maximum border width */
# define QRCODE_MAX_BORDER 8
/* error correction level used for QR code
* possible values: QR_ECLEVEL_L (lowest, about 7% error can be corrected)
* QR_ECLEVEL_M (about 15%)
* QR_ECLEVEL_Q (about 25%)
* QR_ECLEVEL_H (highest, about 30%)
* image size raises with higher levels */
#define QRCODE_LEVEL QR_ECLEVEL_L
/* note that changing the level at runtime requies
* a numeric value from 0 to 3 */
/* if you really, really, really want to save some bytes...
* It is possible to disable text information in PNG file completly, though
* nobody will have an idea where you got this great software...
* So please do not. */
#define PNG_ENABLE_TEXT 1
/* do you want version information within the PNG file? */
#define PNG_ENABLE_TEXT_VERSIONS 1
/* add referer information to the PNG file? */
#define PNG_ENABLE_TEXT_REFERER 1
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