From 2db9a5dc2ed4ae59e250fedf293a6fec811d496a Mon Sep 17 00:00:00 2001 From: kramm Date: Sun, 18 Mar 2007 18:27:26 +0000 Subject: [PATCH] added gfximage_transform method --- lib/gfxtools.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/lib/gfxtools.c b/lib/gfxtools.c index b6d826f..eeb1a7a 100644 --- a/lib/gfxtools.c +++ b/lib/gfxtools.c @@ -783,3 +783,34 @@ gfxline_t*gfxline_makerectangle(int x1,int y1,int x2, int y2) line[4].x = x1;line[4].y = y1;line[4].type = gfx_lineTo; return line; } + +void gfximage_transform(gfximage_t*img, gfxcxform_t*cxform) +{ + int t; + int size = img->width*img->height; + + int rr,rg,rb,ra, tr; + int gr,gg,gb,ga, tg; + int br,bg,bb,ba, tb; + int ar,ag,ab,aa, ta; + rr = (int)(cxform->rr*256);gr = (int)(cxform->gr*256); + rg = (int)(cxform->rg*256);gg = (int)(cxform->gg*256); + rb = (int)(cxform->rb*256);gb = (int)(cxform->gb*256); + ra = (int)(cxform->ra*256);ga = (int)(cxform->ga*256); + br = (int)(cxform->br*256);ar = (int)(cxform->ar*256);tr = (int)(cxform->tr*256); + bg = (int)(cxform->bg*256);ag = (int)(cxform->ag*256);tg = (int)(cxform->tg*256); + bb = (int)(cxform->bb*256);ab = (int)(cxform->ab*256);tb = (int)(cxform->tb*256); + ba = (int)(cxform->ba*256);aa = (int)(cxform->aa*256);ta = (int)(cxform->ta*256); + + for(t=0;tdata[t]; + unsigned char r = (pixel->r * rr + pixel->g * rg + pixel->b * rb + pixel->a * ra + tr) / 256; + unsigned char g = (pixel->r * gr + pixel->g * gg + pixel->b * gb + pixel->a * ga + tg) / 256; + unsigned char b = (pixel->r * br + pixel->g * bg + pixel->b * bb + pixel->a * ba + tb) / 256; + unsigned char a = (pixel->r * ar + pixel->g * ag + pixel->b * ab + pixel->a * aa + ta) / 256; + pixel->r = r; + pixel->g = g; + pixel->b = b; + pixel->a = a; + } +} -- 1.7.10.4