diff options
Diffstat (limited to 'src/gallium/drivers/r600/r600_formats.h')
| -rw-r--r-- | src/gallium/drivers/r600/r600_formats.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/r600_formats.h b/src/gallium/drivers/r600/r600_formats.h index ae0bc43..1c1089d 100644 --- a/src/gallium/drivers/r600/r600_formats.h +++ b/src/gallium/drivers/r600/r600_formats.h @@ -81,4 +81,36 @@ static INLINE unsigned r600_endian_swap(unsigned size) } } +static INLINE bool r600_is_vertex_format_supported(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + unsigned i; + + if (!desc) + return false; + + /* Find the first non-VOID channel. */ + for (i = 0; i < 4; i++) { + if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) + break; + } + if (i == 4) + return false; + + /* No fixed, no double. */ + if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN || + desc->channel[i].type == UTIL_FORMAT_TYPE_FIXED || + (desc->channel[i].size == 64 && + desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT)) + return false; + + /* No scaled/norm formats with 32 bits per channel. */ + if (desc->channel[i].size == 32 && + (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED || + desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED)) + return false; + + return true; +} + #endif |