it* My version of sent	Err	codevoid.de	70
i	Err	codevoid.de	70
hgit clone git://git.codevoid.de/sent-sdk.git	URL:git://git.codevoid.de/sent-sdk.git	codevoid.de	70
1Log	/git/sent-sdk/log.gph	codevoid.de	70
1Files	/git/sent-sdk/files.gph	codevoid.de	70
1Refs	/git/sent-sdk/refs.gph	codevoid.de	70
1README	/git/sent-sdk/file/README.md.gph	codevoid.de	70
1LICENSE	/git/sent-sdk/file/LICENSE.gph	codevoid.de	70
i---	Err	codevoid.de	70
1commit 0798e82d2326fc330168733997006020cc59e215	/git/sent-sdk/commit/0798e82d2326fc330168733997006020cc59e215.gph	codevoid.de	70
1parent b516f468faa3a80c31932cbcb1ea8ccd1468ffc1	/git/sent-sdk/commit/b516f468faa3a80c31932cbcb1ea8ccd1468ffc1.gph	codevoid.de	70
hAuthor: Markus Teich <markus.teich@stusta.mhn.de>	URL:mailto:markus.teich@stusta.mhn.de	codevoid.de	70
iDate:   Tue,  8 Dec 2015 21:46:18 +0100	Err	codevoid.de	70
i	Err	codevoid.de	70
isupport transparent images	Err	codevoid.de	70
i	Err	codevoid.de	70
iDiffstat:	Err	codevoid.de	70
i  M sent.c                              |      19 ++++++++++++++++---	Err	codevoid.de	70
i	Err	codevoid.de	70
i1 file changed, 16 insertions(+), 3 deletions(-)	Err	codevoid.de	70
i---	Err	codevoid.de	70
1diff --git a/sent.c b/sent.c	/git/sent-sdk/file/sent.c.gph	codevoid.de	70
it@@ -215,6 +215,8 @@ int ffread(Image *img)	Err	codevoid.de	70
i {	Err	codevoid.de	70
i         uint32_t y, x;	Err	codevoid.de	70
i         uint16_t *row;	Err	codevoid.de	70
i+        uint8_t opac;	Err	codevoid.de	70
i+        uint8_t fg_r, fg_g, fg_b, bg_r, bg_g, bg_b;	Err	codevoid.de	70
i         size_t rowlen, off, nbytes;	Err	codevoid.de	70
i         ssize_t r;	Err	codevoid.de	70
i 	Err	codevoid.de	70
it@@ -239,6 +241,11 @@ int ffread(Image *img)	Err	codevoid.de	70
i                 return 0;	Err	codevoid.de	70
i         }	Err	codevoid.de	70
i 	Err	codevoid.de	70
i+        /* extract window background color channels for transparency */	Err	codevoid.de	70
i+        bg_r = (sc->bg.pix >> 16) % 256;	Err	codevoid.de	70
i+        bg_g = (sc->bg.pix >>  8) % 256;	Err	codevoid.de	70
i+        bg_b = (sc->bg.pix >>  0) % 256;	Err	codevoid.de	70
i+	Err	codevoid.de	70
i         for (off = 0, y = 0; y < img->bufheight; y++) {	Err	codevoid.de	70
i                 nbytes = 0;	Err	codevoid.de	70
i                 while (nbytes < rowlen) {	Err	codevoid.de	70
it@@ -248,9 +255,15 @@ int ffread(Image *img)	Err	codevoid.de	70
i                         nbytes += r;	Err	codevoid.de	70
i                 }	Err	codevoid.de	70
i                 for (x = 0; x < rowlen / 2; x += 4) {	Err	codevoid.de	70
i-                        img->buf[off++] = ntohs(row[x + 0]) / 257;	Err	codevoid.de	70
i-                        img->buf[off++] = ntohs(row[x + 1]) / 257;	Err	codevoid.de	70
i-                        img->buf[off++] = ntohs(row[x + 2]) / 257;	Err	codevoid.de	70
i+                        fg_r = ntohs(row[x + 0]) / 256;	Err	codevoid.de	70
i+                        fg_g = ntohs(row[x + 1]) / 256;	Err	codevoid.de	70
i+                        fg_b = ntohs(row[x + 2]) / 256;	Err	codevoid.de	70
i+                        opac = ntohs(row[x + 3]) / 256;	Err	codevoid.de	70
i+                        /* blend opaque part of image data with window background color to	Err	codevoid.de	70
i+                         * emulate transparency */	Err	codevoid.de	70
i+                        img->buf[off++] = (fg_r * opac + bg_r * (255 - opac)) / 256;	Err	codevoid.de	70
i+                        img->buf[off++] = (fg_g * opac + bg_g * (255 - opac)) / 256;	Err	codevoid.de	70
i+                        img->buf[off++] = (fg_b * opac + bg_b * (255 - opac)) / 256;	Err	codevoid.de	70
i                 }	Err	codevoid.de	70
i         }	Err	codevoid.de	70
i 	Err	codevoid.de	70
.