Mesa (master): gallium/util: implement software Z32F_S8X24 depth-stencil clear
Marek Olšák
mareko at kemper.freedesktop.org
Sun Jul 10 19:44:51 UTC 2011
Module: Mesa
Branch: master
Commit: e860cb64dbcb170207641fc280e47858fae74891
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=e860cb64dbcb170207641fc280e47858fae74891
Author: Marek Olšák <maraeo at gmail.com>
Date: Fri Jun 24 23:39:51 2011 +0200
gallium/util: implement software Z32F_S8X24 depth-stencil clear
---
src/gallium/auxiliary/util/u_surface.c | 35 +++++++++++++++++++++++++++++++-
1 files changed, 34 insertions(+), 1 deletions(-)
diff --git a/src/gallium/auxiliary/util/u_surface.c b/src/gallium/auxiliary/util/u_surface.c
index 4c5cc4d..8e12386 100644
--- a/src/gallium/auxiliary/util/u_surface.c
+++ b/src/gallium/auxiliary/util/u_surface.c
@@ -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;
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