diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_format.h')
-rw-r--r-- | src/gallium/auxiliary/util/u_format.h | 96 |
1 files changed, 82 insertions, 14 deletions
diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h index 98d4b98ebb..93818a3161 100644 --- a/src/gallium/auxiliary/util/u_format.h +++ b/src/gallium/auxiliary/util/u_format.h @@ -189,6 +189,46 @@ struct util_format_description * Colorspace transformation. */ enum util_format_colorspace colorspace; + + /** + * Unpack pixel blocks to R8G8B8A8_UNORM. + */ + void + (*unpack_8unorm)(uint8_t *dst, unsigned dst_stride, + const uint8_t *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Pack pixel blocks from R8G8B8A8_UNORM. + */ + void + (*pack_8unorm)(uint8_t *dst, unsigned dst_stride, + const uint8_t *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Unpack pixel blocks to R32G32B32A32_FLOAT. + */ + void + (*unpack_float)(float *dst, unsigned dst_stride, + const uint8_t *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Pack pixel blocks from R32G32B32A32_FLOAT. + */ + void + (*pack_float)(uint8_t *dst, unsigned dst_stride, + const float *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Fetch a single pixel (i, j) from a block. + */ + void + (*fetch_float)(float *dst, + const uint8_t *src, + unsigned i, unsigned j); }; @@ -209,8 +249,8 @@ util_format_name(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); - assert(format); - if (!format) { + assert(desc); + if (!desc) { return "???"; } @@ -222,8 +262,8 @@ util_format_is_s3tc(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); - assert(format); - if (!format) { + assert(desc); + if (!desc) { return FALSE; } @@ -235,8 +275,8 @@ util_format_is_depth_or_stencil(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); - assert(format); - if (!format) { + assert(desc); + if (!desc) { return FALSE; } @@ -248,8 +288,8 @@ util_format_is_depth_and_stencil(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); - assert(format); - if (!format) { + assert(desc); + if (!desc) { return FALSE; } @@ -261,6 +301,34 @@ util_format_is_depth_and_stencil(enum pipe_format format) desc->swizzle[1] != UTIL_FORMAT_SWIZZLE_NONE) ? TRUE : FALSE; } +/** + * Whether this format is a rgab8 variant. + * + * That is, any format that matches the + * + * PIPE_FORMAT_?8?8?8?8_UNORM + */ +static INLINE boolean +util_format_is_rgba8_variant(const struct util_format_description *desc) +{ + unsigned chan; + + if(desc->block.width != 1 || + desc->block.height != 1 || + desc->block.bits != 32) + return FALSE; + + for(chan = 0; chan < 4; ++chan) { + if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED && + desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID) + return FALSE; + if(desc->channel[chan].size != 8) + return FALSE; + } + + return TRUE; +} + /** * Return total bits needed for the pixel format per block. @@ -270,8 +338,8 @@ util_format_get_blocksizebits(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); - assert(format); - if (!format) { + assert(desc); + if (!desc) { return 0; } @@ -296,8 +364,8 @@ util_format_get_blockwidth(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); - assert(format); - if (!format) { + assert(desc); + if (!desc) { return 1; } @@ -309,8 +377,8 @@ util_format_get_blockheight(enum pipe_format format) { const struct util_format_description *desc = util_format_description(format); - assert(format); - if (!format) { + assert(desc); + if (!desc) { return 1; } |