--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN GRAPHICS 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.
+ *
+ **************************************************************************/
+
+/**
+ * TGSI program scan utility.
+ * Used to determine which registers and instructions are used by a shader.
+ *
+ * Authors: Brian Paul
+ */
+
+
+#include "tgsi_scan.h"
+#include "tgsi/util/tgsi_parse.h"
+#include "tgsi/util/tgsi_build.h"
+
+
+
+
+/**
+ */
+void
+tgsi_scan_shader(const struct tgsi_token *tokens,
+ struct tgsi_shader_info *info)
+{
+ uint procType;
+ struct tgsi_parse_context parse;
+
+ memset(info, 0, sizeof(*info));
+
+ /**
+ ** Setup to begin parsing input shader
+ **/
+ if (tgsi_parse_init( &parse, tokens ) != TGSI_PARSE_OK) {
+ debug_printf("tgsi_parse_init() failed in tgsi_scan_shader()!\n");
+ return;
+ }
+ procType = parse.FullHeader.Processor.Processor;
+ assert(procType == TGSI_PROCESSOR_FRAGMENT ||
+ procType == TGSI_PROCESSOR_VERTEX ||
+ procType == TGSI_PROCESSOR_GEOMETRY);
+
+
+ /**
+ ** Loop over incoming program tokens/instructions
+ */
+ while( !tgsi_parse_end_of_tokens( &parse ) ) {
+
+ tgsi_parse_token( &parse );
+
+ switch( parse.FullToken.Token.Type ) {
+ case TGSI_TOKEN_TYPE_INSTRUCTION:
+ {
+ struct tgsi_full_instruction *fullinst
+ = &parse.FullToken.FullInstruction;
+
+ assert(fullinst->Instruction.Opcode < TGSI_OPCODE_LAST);
+ info->opcode_count[fullinst->Instruction.Opcode]++;
+ }
+ break;
+
+ case TGSI_TOKEN_TYPE_DECLARATION:
+ {
+ struct tgsi_full_declaration *fulldecl
+ = &parse.FullToken.FullDeclaration;
+ uint file = fulldecl->Declaration.File;
+ uint i;
+ for (i = fulldecl->u.DeclarationRange.First;
+ i <= fulldecl->u.DeclarationRange.Last;
+ i++) {
+ info->file_mask[file] |= (1 << i);
+ info->file_count[file]++;
+
+ /* special case */
+ if (procType == TGSI_PROCESSOR_FRAGMENT &&
+ file == TGSI_FILE_OUTPUT &&
+ fulldecl->Semantic.SemanticName == TGSI_SEMANTIC_POSITION) {
+ info->writes_z = TRUE;
+ }
+ }
+ }
+ break;
+
+ case TGSI_TOKEN_TYPE_IMMEDIATE:
+ info->immediate_count++;
+ break;
+
+ default:
+ assert( 0 );
+ }
+ }
+
+ tgsi_parse_free (&parse);
+}
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN GRAPHICS 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.
+ *
+ **************************************************************************/
+
+#ifndef TGSI_SCAN_H
+#define TGSI_SCAN_H
+
+
+#include "pipe/p_util.h"
+#include "pipe/p_shader_tokens.h"
+
+
+/**
+ * Shader summary info
+ */
+struct tgsi_shader_info
+{
+ uint file_mask[TGSI_FILE_COUNT]; /**< bitmask of declared registers */
+ uint file_count[TGSI_FILE_COUNT]; /**< number of declared registers */
+
+ uint immediate_count; /**< number of immediates declared */
+
+ uint opcode_count[TGSI_OPCODE_LAST]; /**< opcode histogram */
+
+ boolean writes_z; /**< does fragment shader write Z value? */
+};
+
+
+extern void
+tgsi_scan_shader(const struct tgsi_token *tokens,
+ struct tgsi_shader_info *info);
+
+
+#endif /* TGSI_SCAN_H */
projects / mesa.git / commitdiff