/*
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

void main(void)
{
    uvec3 gid = gl_GlobalInvocationID;
#ifndef INTERLACED
    ivec2 pos = ivec2(gid);
#else
    ivec2 pos = ivec2(gid.x, (gid.y << 1) + bottom_field);
#endif

    /* Clear luma plane */
    imageStore(dst[0], pos, uvec4(0));

    /* Clear chroma plane */
    if (gid.x < mb_width << (4 - log2_chroma_w)) {
        imageStore(dst[1], pos, uvec4(0));
        imageStore(dst[2], pos, uvec4(0));
    }

    /* Alpha plane doesn't need a clear because it is not sparsely encoded */
}