Lines Matching refs:r
19 int r,g,b,a; in gdImageNegate() local
33 r = gdImageRed(src, pxl); in gdImageNegate()
38 new_pxl = gdImageColorAllocateAlpha(src, 255-r, 255-g, 255-b, a); in gdImageNegate()
40 new_pxl = gdImageColorClosestAlpha(src, 255-r, 255-g, 255-b, a); in gdImageNegate()
52 int r,g,b,a; in gdImageGrayScale() local
65 r = gdImageRed(src, pxl); in gdImageGrayScale()
69 r = g = b = (int) (.299 * r + .587 * g + .114 * b); in gdImageGrayScale()
71 new_pxl = gdImageColorAllocateAlpha(src, r, g, b, a); in gdImageGrayScale()
73 new_pxl = gdImageColorClosestAlpha(src, r, g, b, a); in gdImageGrayScale()
85 int r,g,b,a; in gdImageBrightness() local
103 r = gdImageRed(src, pxl); in gdImageBrightness()
108 r = r + brightness; in gdImageBrightness()
112 r = (r > 255)? 255 : ((r < 0)? 0:r); in gdImageBrightness()
116 new_pxl = gdImageColorAllocateAlpha(src, (int)r, (int)g, (int)b, a); in gdImageBrightness()
118 new_pxl = gdImageColorClosestAlpha(src, (int)r, (int)g, (int)b, a); in gdImageBrightness()
130 int r,g,b,a; in gdImageContrast() local
149 r = gdImageRed(src, pxl); in gdImageContrast()
154 rf = (double)r/255.0; in gdImageContrast()
202 int r,g,b,a; in gdImageColor() local
205 r = gdImageRed(src, pxl); in gdImageColor()
210 r = r + red; in gdImageColor()
215 r = (r > 255)? 255 : ((r < 0)? 0 : r); in gdImageColor()
220 new_pxl = gdImageColorAllocateAlpha(src, r, g, b, a); in gdImageColor()
222 new_pxl = gdImageColorClosestAlpha(src, r, g, b, a); in gdImageColor()