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authorKenneth Graunke <[email protected]>2018-07-30 15:20:00 -0700
committerKenneth Graunke <[email protected]>2018-10-14 23:36:28 -0700
commitc3d219837af66b4299ab7e746b65ff33a0a6ca0d (patch)
treeb98292b407a1e7968515ccd0e63fdd5503324cc6 /src
parent5849e0612cc4c21d213bdb4bd8d0a3f9531cc2b3 (diff)
gallium/format: Add a helper to combine separate Z24 and S8 stencil.
This new function takes separate Z24 depth and S8 stencil sources, and packs them into a single combined Z24S8 buffer. Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src')
-rw-r--r--src/gallium/auxiliary/util/u_format_zs.c20
-rw-r--r--src/gallium/auxiliary/util/u_format_zs.h2
2 files changed, 22 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_format_zs.c b/src/gallium/auxiliary/util/u_format_zs.c
index 4ad3a0c6477..4b801d2dcf7 100644
--- a/src/gallium/auxiliary/util/u_format_zs.c
+++ b/src/gallium/auxiliary/util/u_format_zs.c
@@ -449,6 +449,26 @@ 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,
unsigned width, unsigned height)
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);