gallium: added new tgsi_scan.c / tgsi_scan_shader() function
Used to get information about registers, instructions used in a shader.
This commit is contained in:
Brian
parent
e9bb63c8e2
commit
1d77d6caf6
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@ -9,6 +9,7 @@ C_SOURCES = \
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util/tgsi_build.c \
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util/tgsi_dump.c \
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util/tgsi_parse.c \
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util/tgsi_scan.c \
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util/tgsi_transform.c \
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util/tgsi_util.c
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@ -0,0 +1,117 @@
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/**************************************************************************
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*
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* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* TGSI program scan utility.
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* Used to determine which registers and instructions are used by a shader.
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*
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* Authors: Brian Paul
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*/
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#include "tgsi_scan.h"
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#include "tgsi/util/tgsi_parse.h"
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#include "tgsi/util/tgsi_build.h"
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/**
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*/
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void
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tgsi_scan_shader(const struct tgsi_token *tokens,
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struct tgsi_shader_info *info)
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{
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uint procType;
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struct tgsi_parse_context parse;
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memset(info, 0, sizeof(*info));
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/**
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** Setup to begin parsing input shader
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**/
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if (tgsi_parse_init( &parse, tokens ) != TGSI_PARSE_OK) {
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debug_printf("tgsi_parse_init() failed in tgsi_scan_shader()!\n");
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return;
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}
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procType = parse.FullHeader.Processor.Processor;
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assert(procType == TGSI_PROCESSOR_FRAGMENT ||
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procType == TGSI_PROCESSOR_VERTEX ||
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procType == TGSI_PROCESSOR_GEOMETRY);
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/**
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** Loop over incoming program tokens/instructions
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*/
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while( !tgsi_parse_end_of_tokens( &parse ) ) {
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tgsi_parse_token( &parse );
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switch( parse.FullToken.Token.Type ) {
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case TGSI_TOKEN_TYPE_INSTRUCTION:
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{
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struct tgsi_full_instruction *fullinst
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= &parse.FullToken.FullInstruction;
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assert(fullinst->Instruction.Opcode < TGSI_OPCODE_LAST);
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info->opcode_count[fullinst->Instruction.Opcode]++;
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}
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break;
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case TGSI_TOKEN_TYPE_DECLARATION:
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{
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struct tgsi_full_declaration *fulldecl
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= &parse.FullToken.FullDeclaration;
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uint file = fulldecl->Declaration.File;
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uint i;
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for (i = fulldecl->u.DeclarationRange.First;
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i <= fulldecl->u.DeclarationRange.Last;
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i++) {
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info->file_mask[file] |= (1 << i);
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info->file_count[file]++;
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/* special case */
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if (procType == TGSI_PROCESSOR_FRAGMENT &&
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file == TGSI_FILE_OUTPUT &&
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fulldecl->Semantic.SemanticName == TGSI_SEMANTIC_POSITION) {
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info->writes_z = TRUE;
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}
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}
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}
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break;
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case TGSI_TOKEN_TYPE_IMMEDIATE:
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info->immediate_count++;
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break;
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default:
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assert( 0 );
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}
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}
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tgsi_parse_free (&parse);
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}
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@ -0,0 +1,57 @@
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/**************************************************************************
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*
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* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef TGSI_SCAN_H
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#define TGSI_SCAN_H
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#include "pipe/p_util.h"
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#include "pipe/p_shader_tokens.h"
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/**
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* Shader summary info
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*/
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struct tgsi_shader_info
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{
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uint file_mask[TGSI_FILE_COUNT]; /**< bitmask of declared registers */
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uint file_count[TGSI_FILE_COUNT]; /**< number of declared registers */
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uint immediate_count; /**< number of immediates declared */
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uint opcode_count[TGSI_OPCODE_LAST]; /**< opcode histogram */
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boolean writes_z; /**< does fragment shader write Z value? */
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};
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extern void
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tgsi_scan_shader(const struct tgsi_token *tokens,
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struct tgsi_shader_info *info);
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#endif /* TGSI_SCAN_H */
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