marko10_000
/
wine-wine
forked from Mirrors/wine-wine
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

windowscodecs: Fix calculation of transparent GIF color index.

oldstable
Dmitry Timoshkov 2012-09-24 13:22:49 +09:00 committed by Alexandre Julliard
parent 56f37637b8
commit 507abc41ca
2 changed files with 3 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
dlls/windowscodecs/gifformat.c
View File

@ -729,9 +729,9 @@ static HRESULT WINAPI GifFrameDecode_CopyPalette(IWICBitmapFrameDecode *iface,
/* look for the transparent color extension */
for (i = 0; i < This->frame->Extensions.ExtensionBlockCount; ++i) {
eb = This->frame->Extensions.ExtensionBlocks + i;
if (eb->Function == 0xF9 && eb->ByteCount == 4) {
if ((eb->Bytes[0] & 1) == 1) {
trans = (unsigned char)eb->Bytes[3];
if (eb->Function == GRAPHICS_EXT_FUNC_CODE && eb->ByteCount == 8) {
if (eb->Bytes[3] & 1) {
trans = (unsigned char)eb->Bytes[6];
colors[trans] &= 0xffffff; /* set alpha to 0 */
break;
}

1
dlls/windowscodecs/tests/gifformat.c
View File

@ -118,7 +118,6 @@ static void test_local_gif_palette(void)
ok(hr == S_OK, "GetColors error %#x\n", hr);
ok(ret == count, "expected %u, got %u\n", count, ret);
ok(color[0] == 0xff010203, "expected 0xff010203, got %#x\n", color[0]);
todo_wine
ok(color[1] == 0x00040506, "expected 0x00040506, got %#x\n", color[1]);
ok(color[2] == 0xff070809, "expected 0xff070809, got %#x\n", color[2]);
ok(color[3] == 0xff0a0b0c, "expected 0xff0a0b0c, got %#x\n", color[3]);