mesa: Add support to unpack depth-stencil texture in to FLOAT_32_UNSIGNED_INT_24_8_REV

V2: Follow the new naming convention for unpack functions.
    Use double precision for converting Z24 to a float.
V3: Unpack stencil value to most significant byte.
    Use 'struct z32f_x24s8' type.
V4: Unpack stencil value to least significant byte.
    Add a comment to clarify stencil packing.

Cc: <[email protected]>
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/mesa/main/format_unpack.h b/src/mesa/main/format_unpack.h
index 5904a28e755..51f97df4d77 100644
--- a/src/mesa/main/format_unpack.h
+++ b/src/mesa/main/format_unpack.h
@@ -64,6 +64,11 @@ _mesa_unpack_uint_24_8_depth_stencil_row(mesa_format format, GLuint n,
 					 const void *src, GLuint *dst);
 
 void
+_mesa_unpack_float_32_uint_24_8_depth_stencil_row(mesa_format format,
+                                                  GLuint n,
+                                                  const void *src,
+                                                  GLuint *dst);
+void
 _mesa_unpack_depth_stencil_row(mesa_format format, GLuint n,
                               const void *src, GLenum type,
                               GLuint *dst);