From be7407b75b12c70e1925c10117937ae2b9e6711f Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Tue, 2 Aug 2011 01:04:58 +0200 Subject: [PATCH] gallium/util: add functions for manipulating swizzles Some of those have been in drivers already. --- src/gallium/auxiliary/util/u_format.c | 50 +++++++++++++++++++ src/gallium/auxiliary/util/u_format.h | 19 +++++++ src/gallium/drivers/r300/r300_fs.c | 5 +- src/gallium/drivers/r300/r300_state_derived.c | 18 +------ src/gallium/drivers/r300/r300_texture.c | 14 +----- src/gallium/drivers/r300/r300_texture.h | 4 -- src/gallium/drivers/r600/r600_texture.c | 6 +-- 7 files changed, 75 insertions(+), 41 deletions(-) diff --git a/src/gallium/auxiliary/util/u_format.c b/src/gallium/auxiliary/util/u_format.c index 9cbdd0a5b99..3a8aeab5fed 100644 --- a/src/gallium/auxiliary/util/u_format.c +++ b/src/gallium/auxiliary/util/u_format.c @@ -390,3 +390,53 @@ util_format_translate(enum pipe_format dst_format, FREE(tmp_row); } } + +void util_format_compose_swizzles(const unsigned char swz1[4], + const unsigned char swz2[4], + unsigned char dst[4]) +{ + unsigned i; + + for (i = 0; i < 4; i++) { + dst[i] = swz2[i] <= UTIL_FORMAT_SWIZZLE_W ? + swz1[swz2[i]] : swz2[i]; + } +} + +void util_format_swizzle_4f(float *dst, const float *src, + const unsigned char swz[4]) +{ + unsigned i; + + for (i = 0; i < 4; i++) { + if (swz[i] < UTIL_FORMAT_SWIZZLE_W) + dst[i] = src[swz[i]]; + else if (swz[i] == UTIL_FORMAT_SWIZZLE_0) + dst[i] = 0; + else if (swz[i] == UTIL_FORMAT_SWIZZLE_1) + dst[i] = 1; + } +} + +void util_format_unswizzle_4f(float *dst, const float *src, + const unsigned char swz[4]) +{ + unsigned i; + + for (i = 0; i < 4; i++) { + switch (swz[i]) { + case UTIL_FORMAT_SWIZZLE_X: + dst[0] = src[i]; + break; + case UTIL_FORMAT_SWIZZLE_Y: + dst[1] = src[i]; + break; + case UTIL_FORMAT_SWIZZLE_Z: + dst[2] = src[i]; + break; + case UTIL_FORMAT_SWIZZLE_W: + dst[3] = src[i]; + break; + } + } +} diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h index bb3ed72e932..566fa79e781 100644 --- a/src/gallium/auxiliary/util/u_format.h +++ b/src/gallium/auxiliary/util/u_format.h @@ -815,6 +815,25 @@ util_format_translate(enum pipe_format dst_format, unsigned src_x, unsigned src_y, unsigned width, unsigned height); +/* + * Swizzle operations. + */ + +/* Compose two sets of swizzles. + * If V is a 4D vector and the function parameters represent functions that + * swizzle vector components, this holds: + * swz2(swz1(V)) = dst(V) + */ +void util_format_compose_swizzles(const unsigned char swz1[4], + const unsigned char swz2[4], + unsigned char dst[4]); + +void util_format_swizzle_4f(float *dst, const float *src, + const unsigned char swz[4]); + +void util_format_unswizzle_4f(float *dst, const float *src, + const unsigned char swz[4]); + #ifdef __cplusplus } // extern "C" { #endif diff --git a/src/gallium/drivers/r300/r300_fs.c b/src/gallium/drivers/r300/r300_fs.c index a9fd3ad40dd..6f21125f70a 100644 --- a/src/gallium/drivers/r300/r300_fs.c +++ b/src/gallium/drivers/r300/r300_fs.c @@ -180,9 +180,10 @@ static void get_external_state( v->base.format == PIPE_FORMAT_LATC1_SNORM) { unsigned char swizzle[4]; - util_format_combine_swizzles(swizzle, + util_format_compose_swizzles( util_format_description(v->base.format)->swizzle, - v->swizzle); + v->swizzle, + swizzle); state->unit[i].texture_swizzle = RC_MAKE_SWIZZLE(swizzle[0], swizzle[1], diff --git a/src/gallium/drivers/r300/r300_state_derived.c b/src/gallium/drivers/r300/r300_state_derived.c index f63114e7eb7..45c11fce1fe 100644 --- a/src/gallium/drivers/r300/r300_state_derived.c +++ b/src/gallium/drivers/r300/r300_state_derived.c @@ -605,7 +605,6 @@ static uint32_t r300_get_border_color(enum pipe_format format, { const struct util_format_description *desc; float border_swizzled[4] = {0}; - unsigned i; union util_color uc = {0}; desc = util_format_description(format); @@ -629,22 +628,7 @@ static uint32_t r300_get_border_color(enum pipe_format format, } /* Apply inverse swizzle of the format. */ - for (i = 0; i < 4; i++) { - switch (desc->swizzle[i]) { - case UTIL_FORMAT_SWIZZLE_X: - border_swizzled[0] = border[i]; - break; - case UTIL_FORMAT_SWIZZLE_Y: - border_swizzled[1] = border[i]; - break; - case UTIL_FORMAT_SWIZZLE_Z: - border_swizzled[2] = border[i]; - break; - case UTIL_FORMAT_SWIZZLE_W: - border_swizzled[3] = border[i]; - break; - } - } + util_format_unswizzle_4f(border_swizzled, border, desc->swizzle); /* Compressed formats. */ if (util_format_is_compressed(format)) { diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c index 08fccbe51c5..fc84004fb97 100644 --- a/src/gallium/drivers/r300/r300_texture.c +++ b/src/gallium/drivers/r300/r300_texture.c @@ -38,18 +38,6 @@ #include "pipe/p_screen.h" -void util_format_combine_swizzles(unsigned char *dst, - const unsigned char *swz1, - const unsigned char *swz2) -{ - unsigned i; - - for (i = 0; i < 4; i++) { - dst[i] = swz2[i] <= UTIL_FORMAT_SWIZZLE_W ? - swz1[swz2[i]] : swz2[i]; - } -} - unsigned r300_get_swizzle_combined(const unsigned char *swizzle_format, const unsigned char *swizzle_view, boolean dxtc_swizzle) @@ -72,7 +60,7 @@ unsigned r300_get_swizzle_combined(const unsigned char *swizzle_format, if (swizzle_view) { /* Combine two sets of swizzles. */ - util_format_combine_swizzles(swizzle, swizzle_format, swizzle_view); + util_format_compose_swizzles(swizzle_format, swizzle_view, swizzle); } else { memcpy(swizzle, swizzle_format, 4); } diff --git a/src/gallium/drivers/r300/r300_texture.h b/src/gallium/drivers/r300/r300_texture.h index 4586bb2e4dc..158a387478f 100644 --- a/src/gallium/drivers/r300/r300_texture.h +++ b/src/gallium/drivers/r300/r300_texture.h @@ -35,10 +35,6 @@ struct r300_texture_desc; struct r300_resource; struct r300_screen; -void util_format_combine_swizzles(unsigned char *dst, - const unsigned char *swz1, - const unsigned char *swz2); - unsigned r300_get_swizzle_combined(const unsigned char *swizzle_format, const unsigned char *swizzle_view, boolean dxtc_swizzle); diff --git a/src/gallium/drivers/r600/r600_texture.c b/src/gallium/drivers/r600/r600_texture.c index e9e8b277243..927eb5dafc9 100644 --- a/src/gallium/drivers/r600/r600_texture.c +++ b/src/gallium/drivers/r600/r600_texture.c @@ -754,11 +754,7 @@ static unsigned r600_get_swizzle_combined(const unsigned char *swizzle_format, }; if (swizzle_view) { - /* Combine two sets of swizzles. */ - for (i = 0; i < 4; i++) { - swizzle[i] = swizzle_view[i] <= UTIL_FORMAT_SWIZZLE_W ? - swizzle_format[swizzle_view[i]] : swizzle_view[i]; - } + util_format_compose_swizzles(swizzle_format, swizzle_view, swizzle); } else { memcpy(swizzle, swizzle_format, 4); } -- 2.30.2