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/**************************************************************************
*
* 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_TRANSFORM_H
#define TGSI_TRANSFORM_H
#include "pipe/p_util.h"
#include "pipe/p_shader_tokens.h"
#include "tgsi/tgsi_parse.h"
#include "tgsi/tgsi_build.h"
/**
* Subclass this to add caller-specific data
*/
struct tgsi_transform_context
{
/**** PUBLIC ***/
/**
* User-defined callbacks invoked per instruction.
*/
void (*transform_instruction)(struct tgsi_transform_context *ctx,
struct tgsi_full_instruction *inst);
void (*transform_declaration)(struct tgsi_transform_context *ctx,
struct tgsi_full_declaration *decl);
void (*transform_immediate)(struct tgsi_transform_context *ctx,
struct tgsi_full_immediate *imm);
/**
* Called at end of input program to allow caller to append extra
* instructions. Return number of tokens emitted.
*/
void (*epilog)(struct tgsi_transform_context *ctx);
/*** PRIVATE ***/
/**
* These are setup by tgsi_transform_shader() and cannot be overridden.
* Meant to be called from in the above user callback functions.
*/
void (*emit_instruction)(struct tgsi_transform_context *ctx,
const struct tgsi_full_instruction *inst);
void (*emit_declaration)(struct tgsi_transform_context *ctx,
const struct tgsi_full_declaration *decl);
void (*emit_immediate)(struct tgsi_transform_context *ctx,
const struct tgsi_full_immediate *imm);
struct tgsi_header *header;
uint max_tokens_out;
struct tgsi_token *tokens_out;
uint ti;
};
extern int
tgsi_transform_shader(const struct tgsi_token *tokens_in,
struct tgsi_token *tokens_out,
uint max_tokens_out,
struct tgsi_transform_context *ctx);
#endif /* TGSI_TRANSFORM_H */
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