PATH:
usr
/
include
#ifdef __cplusplus extern "C" { #endif #ifndef GDFX_H #define GDFX_H 1 #include "gd.h" /* im MUST be square, but can have any size. Returns a new image of width and height radius * 2, in which the X axis of the original has been remapped to theta (angle) and the Y axis of the original has been remapped to rho (distance from center). This is known as a "polar coordinate transform." */ BGD_DECLARE(gdImagePtr) gdImageSquareToCircle(gdImagePtr im, int radius); /* Draws the text 'top' and 'bottom' on 'im', curved along the edge of a circle of radius 'radius', with its center at 'cx' and 'cy'. 'top' is written clockwise along the top; 'bottom' is written counterclockwise along the bottom. 'textRadius' determines the 'height' of each character; if 'textRadius' is 1/2 of 'radius', characters extend halfway from the edge to the center. 'fillPortion' varies from 0 to 1.0, with useful values from about 0.4 to 0.9, and determines how much of the 180 degrees of arc assigned to each section of text is actually occupied by text; 0.9 looks better than 1.0 which is rather crowded. 'font' is a freetype font; see gdImageStringFT. 'points' is passed to the freetype engine and has an effect on hinting; although the size of the text is determined by radius, textRadius, and fillPortion, you should pass a point size that 'hints' appropriately -- if you know the text will be large, pass a large point size such as 24.0 to get the best results. 'fgcolor' can be any color, and may have an alpha component, do blending, etc. Returns 0 on success, or an error string. */ BGD_DECLARE(char *) gdImageStringFTCircle( gdImagePtr im, int cx, int cy, double radius, double textRadius, double fillPortion, char *font, double points, char *top, char *bottom, int fgcolor); /* 2.0.16: * Sharpen function added on 2003-11-19 * by Paul Troughton (paul<dot>troughton<at>ieee<dot>org) * Simple 3x3 convolution kernel * Makes use of seperability * Faster, but less flexible, than full-blown unsharp masking * pct is sharpening percentage, and can be greater than 100 * Silently does nothing to non-truecolor images * Silently does nothing for pct<0, as not a useful blurring function * Leaves transparency/alpha-channel untouched */ BGD_DECLARE(void) gdImageSharpen (gdImagePtr im, int pct); #endif /* GDFX_H */ #ifdef __cplusplus } #endif
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