From bfd7a9ca967e5521fb3847db8615127c3ee7b9b3 Mon Sep 17 00:00:00 2001 From: José Fonseca Date: Sun, 25 Oct 2009 09:09:59 +0000 Subject: llvmpipe: New module to help make assertions about formats. --- src/gallium/drivers/llvmpipe/Makefile | 1 + src/gallium/drivers/llvmpipe/SConscript | 1 + src/gallium/drivers/llvmpipe/lp_bld_format.h | 4 ++ src/gallium/drivers/llvmpipe/lp_bld_format_query.c | 72 ++++++++++++++++++++++ 4 files changed, 78 insertions(+) create mode 100644 src/gallium/drivers/llvmpipe/lp_bld_format_query.c (limited to 'src/gallium/drivers/llvmpipe') diff --git a/src/gallium/drivers/llvmpipe/Makefile b/src/gallium/drivers/llvmpipe/Makefile index ea771392b1..96c014e592 100644 --- a/src/gallium/drivers/llvmpipe/Makefile +++ b/src/gallium/drivers/llvmpipe/Makefile @@ -17,6 +17,7 @@ C_SOURCES = \ lp_bld_depth.c \ lp_bld_flow.c \ lp_bld_format_aos.c \ + lp_bld_format_query.c \ lp_bld_format_soa.c \ lp_bld_interp.c \ lp_bld_intr.c \ diff --git a/src/gallium/drivers/llvmpipe/SConscript b/src/gallium/drivers/llvmpipe/SConscript index 169e0abc2b..52983039fd 100644 --- a/src/gallium/drivers/llvmpipe/SConscript +++ b/src/gallium/drivers/llvmpipe/SConscript @@ -30,6 +30,7 @@ llvmpipe = env.ConvenienceLibrary( 'lp_bld_depth.c', 'lp_bld_flow.c', 'lp_bld_format_aos.c', + 'lp_bld_format_query.c', 'lp_bld_format_soa.c', 'lp_bld_interp.c', 'lp_bld_intr.c', diff --git a/src/gallium/drivers/llvmpipe/lp_bld_format.h b/src/gallium/drivers/llvmpipe/lp_bld_format.h index fa560576be..970bee379f 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_format.h +++ b/src/gallium/drivers/llvmpipe/lp_bld_format.h @@ -42,6 +42,10 @@ struct util_format_description; struct lp_type; +boolean +lp_format_is_rgba8(const struct util_format_description *desc); + + void lp_build_format_swizzle_soa(const struct util_format_description *format_desc, struct lp_type type, diff --git a/src/gallium/drivers/llvmpipe/lp_bld_format_query.c b/src/gallium/drivers/llvmpipe/lp_bld_format_query.c new file mode 100644 index 0000000000..f3832d07ff --- /dev/null +++ b/src/gallium/drivers/llvmpipe/lp_bld_format_query.c @@ -0,0 +1,72 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * @file + * Utility functions to make assertions about formats. + * + * This module centralizes most of logic used when determining what algorithm + * is most suitable (i.e., most efficient yet correct) for a given format. + * + * It might be possible to move some of these functions to u_format module, + * but since tiny differences in the format my render it more/less + * appropriate to a given algorithm it is impossible to make any long term + * guarantee about the semantics of these functions. + * + * @author Jose Fonseca + */ + + +#include "util/u_format.h" + +#include "lp_bld_format.h" + + +/** + * Whether this format is a 4 rgba8 variant + */ +boolean +lp_format_is_rgba8(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_SIGNED && + desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID) + return FALSE; + if(desc->channel[chan].size != 8) + return FALSE; + } + + return TRUE; +} -- cgit v1.2.3