From a2d360b91545ad00abec518e8449df5d8d838b13 Mon Sep 17 00:00:00 2001 From: José Fonseca Date: Fri, 2 Jul 2010 18:38:11 +0100 Subject: util: Add a fetch_rgba_8unorm. Not always implemented, but useful in situations where we want 8unorms and the samples comes as 8unorms as we needlessly convert to/from floats. --- src/gallium/auxiliary/util/u_format.h | 10 ++++++++++ src/gallium/auxiliary/util/u_format_table.py | 5 +++++ 2 files changed, 15 insertions(+) (limited to 'src') diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h index a4f282979b..38254b1096 100644 --- a/src/gallium/auxiliary/util/u_format.h +++ b/src/gallium/auxiliary/util/u_format.h @@ -212,6 +212,16 @@ struct util_format_description const uint8_t *src, unsigned src_stride, unsigned width, unsigned height); + /** + * Fetch a single pixel (i, j) from a block. + * + * XXX: Only defined for a very few select formats. + */ + void + (*fetch_rgba_8unorm)(uint8_t *dst, + const uint8_t *src, + unsigned i, unsigned j); + /** * Unpack pixel blocks to R32G32B32A32_FLOAT. * Note: strides are in bytes. diff --git a/src/gallium/auxiliary/util/u_format_table.py b/src/gallium/auxiliary/util/u_format_table.py index ae9a598197..f0b407b8b8 100755 --- a/src/gallium/auxiliary/util/u_format_table.py +++ b/src/gallium/auxiliary/util/u_format_table.py @@ -132,12 +132,17 @@ def write_format_table(formats): if format.colorspace != ZS: print " &util_format_%s_unpack_rgba_8unorm," % format.short_name() print " &util_format_%s_pack_rgba_8unorm," % format.short_name() + if format.layout == 's3tc': + print " &util_format_%s_fetch_rgba_8unorm," % format.short_name() + else: + print " NULL, /* fetch_rgba_8unorm */" print " &util_format_%s_unpack_rgba_float," % format.short_name() print " &util_format_%s_pack_rgba_float," % format.short_name() print " &util_format_%s_fetch_rgba_float," % format.short_name() else: print " NULL, /* unpack_rgba_8unorm */" print " NULL, /* pack_rgba_8unorm */" + print " NULL, /* fetch_rgba_8unorm */" print " NULL, /* unpack_rgba_float */" print " NULL, /* pack_rgba_float */" print " NULL, /* fetch_rgba_float */" -- cgit v1.2.3