diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_format.h')
-rw-r--r-- | src/gallium/auxiliary/util/u_format.h | 83 |
1 files changed, 80 insertions, 3 deletions
diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h index 72da2a44c7..97e4d959bc 100644 --- a/src/gallium/auxiliary/util/u_format.h +++ b/src/gallium/auxiliary/util/u_format.h @@ -200,7 +200,7 @@ util_format_is_depth_and_stencil(enum pipe_format format) * Return total bits needed for the pixel format. */ static INLINE uint -util_format_get_bits(enum pipe_format format) +util_format_get_blocksizebits(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); @@ -216,9 +216,9 @@ util_format_get_bits(enum pipe_format format) * Return bytes per pixel for the given format. */ static INLINE uint -util_format_get_size(enum pipe_format format) +util_format_get_blocksize(enum pipe_format format) { - uint bits = util_format_get_bits(format); + uint bits = util_format_get_blocksizebits(format); assert(bits % 8 == 0); @@ -226,6 +226,83 @@ util_format_get_size(enum pipe_format format) } static INLINE uint +util_format_get_blockwidth(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(format); + if (!format) { + return 1; + } + + switch (desc->layout) { + case UTIL_FORMAT_LAYOUT_YUV: + return 2; + case UTIL_FORMAT_LAYOUT_DXT: + return 4; + default: + return 1; + } +} + +static INLINE uint +util_format_get_blockheight(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(format); + if (!format) { + return 1; + } + + switch (desc->layout) { + case UTIL_FORMAT_LAYOUT_DXT: + return 4; + default: + return 1; + } +} + +static INLINE unsigned +util_format_get_nblocksx(enum pipe_format format, + unsigned x) +{ + unsigned blockwidth = util_format_get_blockwidth(format); + return (x + blockwidth - 1) / blockwidth; +} + +static INLINE unsigned +util_format_get_nblocksy(enum pipe_format format, + unsigned y) +{ + unsigned blockheight = util_format_get_blockheight(format); + return (y + blockheight - 1) / blockheight; +} + +static INLINE unsigned +util_format_get_nblocks(enum pipe_format format, + unsigned width, + unsigned height) +{ + return util_format_get_nblocksx(format, width) * util_format_get_nblocksy(format, height); +} + +static INLINE size_t +util_format_get_stride(enum pipe_format format, + unsigned width) +{ + return util_format_get_nblocksx(format, width) * util_format_get_blocksize(format); +} + +static INLINE size_t +util_format_get_2d_size(enum pipe_format format, + size_t stride, + unsigned height) +{ + return util_format_get_nblocksy(format, height) * stride; +} + +static INLINE uint util_format_get_component_bits(enum pipe_format format, enum util_format_colorspace colorspace, uint component) |