diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_format.c')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_format.c | 132 |
1 files changed, 124 insertions, 8 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_format.c b/mesalib/src/gallium/auxiliary/util/u_format.c index 9bf42583e..730dc31ac 100644 --- a/mesalib/src/gallium/auxiliary/util/u_format.c +++ b/mesalib/src/gallium/auxiliary/util/u_format.c @@ -52,14 +52,8 @@ util_format_is_float(enum pipe_format format) 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) { + i = util_format_get_first_non_void_channel(format); + if (i == -1) { return FALSE; } @@ -124,6 +118,45 @@ util_format_is_luminance(enum pipe_format format) return FALSE; } +boolean +util_format_is_pure_integer(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + int i; + + /* Find the first non-void channel. */ + i = util_format_get_first_non_void_channel(format); + if (i == -1) + return FALSE; + + return desc->channel[i].pure_integer ? TRUE : FALSE; +} + +boolean +util_format_is_pure_sint(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + int i; + + 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) ? TRUE : FALSE; +} + +boolean +util_format_is_pure_uint(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + int i; + + i = util_format_get_first_non_void_channel(format); + if (i == -1) + return FALSE; + + return (desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED && desc->channel[i].pure_integer) ? TRUE : FALSE; +} boolean util_format_is_luminance_alpha(enum pipe_format format) @@ -262,6 +295,89 @@ util_format_write_4ub(enum pipe_format format, const uint8_t *src, unsigned src_ format_desc->pack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, w, h); } +void +util_format_read_4ui(enum pipe_format format, + unsigned *dst, unsigned dst_stride, + const void *src, unsigned src_stride, + unsigned x, unsigned y, unsigned w, unsigned h) +{ + const struct util_format_description *format_desc; + const uint8_t *src_row; + unsigned *dst_row; + + format_desc = util_format_description(format); + + assert(x % format_desc->block.width == 0); + assert(y % format_desc->block.height == 0); + + src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8); + dst_row = dst; + + format_desc->unpack_rgba_uint(dst_row, dst_stride, src_row, src_stride, w, h); +} + +void +util_format_write_4ui(enum pipe_format format, + const unsigned int *src, unsigned src_stride, + void *dst, unsigned dst_stride, + unsigned x, unsigned y, unsigned w, unsigned h) +{ + const struct util_format_description *format_desc; + uint8_t *dst_row; + const unsigned *src_row; + + format_desc = util_format_description(format); + + assert(x % format_desc->block.width == 0); + assert(y % format_desc->block.height == 0); + + dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8); + src_row = src; + + format_desc->pack_rgba_uint(dst_row, dst_stride, src_row, src_stride, w, h); +} + +void +util_format_read_4i(enum pipe_format format, + int *dst, unsigned dst_stride, + const void *src, unsigned src_stride, + unsigned x, unsigned y, unsigned w, unsigned h) +{ + const struct util_format_description *format_desc; + const uint8_t *src_row; + int *dst_row; + + format_desc = util_format_description(format); + + assert(x % format_desc->block.width == 0); + assert(y % format_desc->block.height == 0); + + src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8); + dst_row = dst; + + format_desc->unpack_rgba_sint(dst_row, dst_stride, src_row, src_stride, w, h); +} + +void +util_format_write_4i(enum pipe_format format, + const int *src, unsigned src_stride, + void *dst, unsigned dst_stride, + unsigned x, unsigned y, unsigned w, unsigned h) +{ + const struct util_format_description *format_desc; + uint8_t *dst_row; + const int *src_row; + + format_desc = util_format_description(format); + + assert(x % format_desc->block.width == 0); + assert(y % format_desc->block.height == 0); + + dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8); + src_row = src; + + format_desc->pack_rgba_sint(dst_row, dst_stride, src_row, src_stride, w, h); +} boolean util_is_format_compatible(const struct util_format_description *src_desc, |