diff options
Diffstat (limited to 'src/gallium/auxiliary/util')
| -rw-r--r-- | src/gallium/auxiliary/util/u_format.c | 19 | ||||
| -rw-r--r-- | src/gallium/auxiliary/util/u_format.h | 3 |
2 files changed, 22 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_format.c b/src/gallium/auxiliary/util/u_format.c index c1ce408119f..79630bf6dc3 100644 --- a/src/gallium/auxiliary/util/u_format.c +++ b/src/gallium/auxiliary/util/u_format.c @@ -170,6 +170,25 @@ util_format_is_snorm(enum pipe_format format) } boolean +util_format_is_snorm8(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + int i; + + if (desc->is_mixed) + return FALSE; + + i = util_format_get_first_non_void_channel(format); + if (i == -1) + return FALSE; + + return desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED && + !desc->channel[i].pure_integer && + desc->channel[i].normalized && + desc->channel[i].size == 8; +} + +boolean util_format_is_luminance_alpha(enum pipe_format format) { const struct util_format_description *desc = diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h index 42b39ff04fd..a1b1b28fa41 100644 --- a/src/gallium/auxiliary/util/u_format.h +++ b/src/gallium/auxiliary/util/u_format.h @@ -686,6 +686,9 @@ util_format_is_pure_uint(enum pipe_format format); boolean util_format_is_snorm(enum pipe_format format); +boolean +util_format_is_snorm8(enum pipe_format format); + /** * Check if the src format can be blitted to the destination format with * a simple memcpy. For example, blitting from RGBA to RGBx is OK, but not |