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pixman: fix vnc tight png/jpeg support

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This patch adds an x argument to qemu_pixman_linebuf_fill so it can
also be used to convert a partial scanline.  Then fix tight + png/jpeg
encoding by passing in the x+y offset, so the data is read from the
correct screen location instead of the upper left corner.

Cc: 1087974@bugs.launchpad.net
Cc: qemu-stable@nongnu.org
Reported-by: Tim Hardeneck <thardeck@suse.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Gerd Hoffmann 2012-12-14 07:54:24 +00:00 • committed by Blue Swirl
parent f27b2e1dfe
commit bc210eb163
5 changed files with 7 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

4
ui/vnc-enc-tight.c
View file

@ -1212,7 +1212,7 @@ static int send_jpeg_rect(VncState *vs, int x, int y, int w, int h, int quality)
buf = (uint8_t *)pixman_image_get_data(linebuf);
row[0] = buf;
for (dy = 0; dy < h; dy++) {
qemu_pixman_linebuf_fill(linebuf, vs->vd->server, w, dy);
qemu_pixman_linebuf_fill(linebuf, vs->vd->server, w, x, y + dy);
jpeg_write_scanlines(&cinfo, row, 1);
}
qemu_pixman_image_unref(linebuf);
@ -1356,7 +1356,7 @@ static int send_png_rect(VncState *vs, int x, int y, int w, int h,
if (color_type == PNG_COLOR_TYPE_PALETTE) {
memcpy(buf, vs->tight.tight.buffer + (dy * w), w);
} else {
qemu_pixman_linebuf_fill(linebuf, vs->vd->server, w, dy);
qemu_pixman_linebuf_fill(linebuf, vs->vd->server, w, x, y + dy);
}
png_write_row(png_ptr, buf);
}