From 056ae405b6f4659619b9e13ad2ff6fb820e0a837 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jos=C3=A9=20Fonseca?= Date: Tue, 1 Jun 2010 16:37:32 +0100 Subject: [PATCH] tgsi: Drop uses_fogcoord and uses_frontfacing from tgsi_scan. It was not used anywhere; the code was buggy (it didn't take care of indirect registers and could potential cause buffer underflows) and the same effect can now be easily achieved by just by looking at input_semantic_name[] and input_usage_mask[]. --- src/gallium/auxiliary/tgsi/tgsi_scan.c | 14 -------------- src/gallium/auxiliary/tgsi/tgsi_scan.h | 2 -- 2 files changed, 16 deletions(-) diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c index 7ee272b..ced9c94 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_scan.c +++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c @@ -95,20 +95,6 @@ tgsi_scan_shader(const struct tgsi_token *tokens, &fullinst->Src[i]; int ind = src->Register.Index; - /* check if we read the frag shader FOG or FACE inputs */ - if (procType == TGSI_PROCESSOR_FRAGMENT) { - if (src->Register.File == TGSI_FILE_INPUT || - src->Register.File == TGSI_FILE_SYSTEM_VALUE) { - assert(ind >= 0); - if (info->input_semantic_name[ind] == TGSI_SEMANTIC_FOG) { - info->uses_fogcoord = TRUE; - } - else if (info->input_semantic_name[ind] == TGSI_SEMANTIC_FACE) { - info->uses_frontfacing = TRUE; - } - } - } - /* Mark which inputs are effectively used */ if (src->Register.File == TGSI_FILE_INPUT) { unsigned usage_mask; diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.h b/src/gallium/auxiliary/tgsi/tgsi_scan.h index f435414..e752803 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_scan.h +++ b/src/gallium/auxiliary/tgsi/tgsi_scan.h @@ -62,8 +62,6 @@ struct tgsi_shader_info boolean writes_z; /**< does fragment shader write Z value? */ boolean writes_edgeflag; /**< vertex shader outputs edgeflag */ boolean uses_kill; /**< KIL or KILP instruction used? */ - boolean uses_fogcoord; /**< fragment shader uses fog coord? */ - boolean uses_frontfacing; /**< fragment shader uses front/back-face flag? */ struct { unsigned name; -- 2.7.4