This new function takes separate Z24 depth and S8 stencil sources,
and packs them into a single combined Z24S8 buffer.
---
src/gallium/auxiliary/util/u_format_zs.c | 20 ++++++++++++++++++++
src/gallium/auxiliary/util/u_format_zs.h | 2 ++
2 files changed, 22 insertions(+)
diff --git a/src/gallium/auxiliary/util/u_format_zs.c
b/src/gallium/auxiliary/util/u_format_zs.c
index 69f2f2971f7..4138fbe6503 100644
--- a/src/gallium/auxiliary/util/u_format_zs.c
+++ b/src/gallium/auxiliary/util/u_format_zs.c
@@ -448,6 +448,26 @@ util_format_z24_unorm_s8_uint_pack_s_8uint(uint8_t
*dst_row, unsigned dst_stride
}
}
+void
+util_format_z24_unorm_s8_uint_pack_separate(uint8_t *dst_row, unsigned
dst_stride,
+ const uint32_t *z_src_row,
unsigned z_src_stride,
+ const uint8_t *s_src_row, unsigned
s_src_stride,
+ unsigned width, unsigned height)
+{
+ unsigned x, y;
+ for(y = 0; y < height; ++y) {
+ const uint32_t *z_src = z_src_row;
+ const uint8_t *s_src = s_src_row;
+ uint32_t *dst = (uint32_t *)dst_row;
+ for(x = 0; x < width; ++x) {
+ *dst++ = (*z_src++ & 0x00ffffff) | (*s_src++ << 24);
+ }
+ dst_row += dst_stride/sizeof(*dst_row);
+ z_src_row += z_src_stride/sizeof(*z_src_row);
+ s_src_row += s_src_stride/sizeof(*s_src_row);
+ }
+}
+
void
util_format_s8_uint_z24_unorm_unpack_z_float(float *dst_row, unsigned
dst_stride,
const uint8_t *src_row,
unsigned src_stride,
diff --git a/src/gallium/auxiliary/util/u_format_zs.h
b/src/gallium/auxiliary/util/u_format_zs.h
index adddfaf3a74..160919dde73 100644
--- a/src/gallium/auxiliary/util/u_format_zs.h
+++ b/src/gallium/auxiliary/util/u_format_zs.h
@@ -112,6 +112,8 @@ util_format_z24_unorm_s8_uint_unpack_s_8uint(uint8_t
*dst_row, unsigned dst_stri
void
util_format_z24_unorm_s8_uint_pack_s_8uint(uint8_t *dst_row, unsigned
dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width,
unsigned height);
+void
+util_format_z24_unorm_s8_uint_pack_separate(uint8_t *dst_row, unsigned
dst_stride, const uint32_t *z_src_row, unsigned z_src_stride, const uint8_t
*s_src_row, unsigned s_src_stride, const unsigned width, unsigned height);
void
util_format_s8_uint_z24_unorm_unpack_z_float(float *dst_row, unsigned
dst_stride, const uint8_t *src_row, unsigned src_stride, unsigned width,
unsigned height);
--
2.18.0
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