diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/auxiliary/util/u_format.h | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h index 03b73c0e98f..7659a802a41 100644 --- a/src/gallium/auxiliary/util/u_format.h +++ b/src/gallium/auxiliary/util/u_format.h @@ -673,7 +673,8 @@ util_format_has_alpha(enum pipe_format format) } /** - * Return the matching SRGB format, or PIPE_FORMAT_NONE if none. + * Given a linear RGB colorspace format, return the corresponding SRGB + * format, or PIPE_FORMAT_NONE if none. */ static INLINE enum pipe_format util_format_srgb(enum pipe_format format) @@ -711,6 +712,45 @@ util_format_srgb(enum pipe_format format) } /** + * Given an sRGB format, return the corresponding linear colorspace format. + * For non sRGB formats, return the format unchanged. + */ +static INLINE enum pipe_format +util_format_linear(enum pipe_format format) +{ + switch (format) { + case PIPE_FORMAT_L8_SRGB: + return PIPE_FORMAT_L8_UNORM; + case PIPE_FORMAT_L8A8_SRGB: + return PIPE_FORMAT_L8A8_UNORM; + case PIPE_FORMAT_R8G8B8_SRGB: + return PIPE_FORMAT_R8G8B8_UNORM; + case PIPE_FORMAT_A8B8G8R8_SRGB: + return PIPE_FORMAT_A8B8G8R8_UNORM; + case PIPE_FORMAT_X8B8G8R8_SRGB: + return PIPE_FORMAT_X8B8G8R8_UNORM; + case PIPE_FORMAT_B8G8R8A8_SRGB: + return PIPE_FORMAT_B8G8R8A8_UNORM; + case PIPE_FORMAT_B8G8R8X8_SRGB: + return PIPE_FORMAT_B8G8R8X8_UNORM; + case PIPE_FORMAT_A8R8G8B8_SRGB: + return PIPE_FORMAT_A8R8G8B8_UNORM; + case PIPE_FORMAT_X8R8G8B8_SRGB: + return PIPE_FORMAT_X8R8G8B8_UNORM; + case PIPE_FORMAT_DXT1_SRGB: + return PIPE_FORMAT_DXT1_RGB; + case PIPE_FORMAT_DXT1_SRGBA: + return PIPE_FORMAT_DXT1_RGBA; + case PIPE_FORMAT_DXT3_SRGBA: + return PIPE_FORMAT_DXT3_RGBA; + case PIPE_FORMAT_DXT5_SRGBA: + return PIPE_FORMAT_DXT5_RGBA; + default: + return format; + } +} + +/** * Return the number of components stored. * Formats with block size != 1x1 will always have 1 component (the block). */ |