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#ifndef GD_INTERN_H
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#define GD_INTERN_H
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#ifdef HAVE_LIMITS_H
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#include <limits.h>
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#endif
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#ifndef MAXPATHLEN
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# ifdef PATH_MAX
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# define MAXPATHLEN PATH_MAX
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# elif defined(MAX_PATH)
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# define MAXPATHLEN MAX_PATH
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# else
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# if defined(__GNU__)
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# define MAXPATHLEN 4096
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# else
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# define MAXPATHLEN 256 /* Should be safe for any weird systems that do not define it */
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# endif
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# endif
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#endif
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#ifdef HAVE_STDINT_H
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# include <stdint.h>
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#else
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# if defined(HAVE_INTTYPES_H)
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# include <inttypes.h>
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# else
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# include "msinttypes/inttypes.h"
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# endif
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#endif
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#include "gd.h"
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#ifndef MIN
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#define MIN(a,b) ((a)<(b)?(a):(b))
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#endif
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#define MIN3(a,b,c) ((a)<(b)?(MIN(a,c)):(MIN(b,c)))
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#ifndef MAX
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#define MAX(a,b) ((a)<(b)?(b):(a))
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#endif
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#define MAX3(a,b,c) ((a)<(b)?(MAX(b,c)):(MAX(a,c)))
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typedef enum {
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HORIZONTAL,
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VERTICAL,
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} gdAxis;
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/* Convert a double to an unsigned char, rounding to the nearest
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* integer and clamping the result between 0 and max. The absolute
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* value of clr must be less than the maximum value of an unsigned
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* short. */
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static inline unsigned char
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uchar_clamp(double clr, unsigned char max) {
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unsigned short result;
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//assert(fabs(clr) <= SHRT_MAX);
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/* Casting a negative float to an unsigned short is undefined.
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* However, casting a float to a signed truncates toward zero and
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* casting a negative signed value to an unsigned of the same size
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* results in a bit-identical value (assuming twos-complement
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* arithmetic). This is what we want: all legal negative values
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* for clr will be greater than 255. */
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/* Convert and clamp. */
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result = (unsigned short)(short)(clr + 0.5);
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if (result > max) {
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result = (clr < 0) ? 0 : max;
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}/* if */
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return result;
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}/* uchar_clamp*/
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/* Internal prototypes: */
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/* gd_rotate.c */
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gdImagePtr gdImageRotate90(gdImagePtr src, int ignoretransparent);
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gdImagePtr gdImageRotate180(gdImagePtr src, int ignoretransparent);
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gdImagePtr gdImageRotate270(gdImagePtr src, int ignoretransparent);
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#endif
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