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gallium/util: implement software Z32F_S8X24 depth-stencil clear

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This commit is contained in:
Marek Olšák 2011-06-24 23:39:51 +02:00
parent 8ff6f90c3f
commit e860cb64db
1 changed files with 34 additions and 1 deletions
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35
src/gallium/auxiliary/util/u_surface.c
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@ -358,8 +358,41 @@ util_clear_depth_stencil(struct pipe_context *pipe,
dst_map += dst_stride;
}
}
break;
break;
case 8:
{
uint64_t zstencil = util_pack64_z_stencil(dst->texture->format,
depth, stencil);
assert(dst->format == PIPE_FORMAT_Z32_FLOAT_S8X24_USCALED);
if (!need_rmw) {
for (i = 0; i < height; i++) {
uint64_t *row = (uint64_t *)dst_map;
for (j = 0; j < width; j++)
*row++ = zstencil;
dst_map += dst_stride;
}
}
else {
uint64_t src_mask;
if (clear_flags & PIPE_CLEAR_DEPTH)
src_mask = 0x00000000ffffffffull;
else
src_mask = 0x000000ff00000000ull;
for (i = 0; i < height; i++) {
uint64_t *row = (uint64_t *)dst_map;
for (j = 0; j < width; j++) {
uint64_t tmp = *row & ~src_mask;
*row++ = tmp | (zstencil & src_mask);
}
dst_map += dst_stride;
}
}
break;
}
default:
assert(0);
break;