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/*
* Mesa 3-D graphics library
* Version: 6.5.2
*
* Copyright (C) 2005-2006 Brian Paul 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, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL 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 SLANG_EXECUTE_H
#define SLANG_EXECUTE_H
#include "slang_assemble.h"
#if defined __cplusplus
extern "C" {
#endif
/**
* A memory location
*/
typedef union slang_machine_slot_
{
GLfloat _float;
GLuint _addr;
} slang_machine_slot;
#define SLANG_MACHINE_GLOBAL_SIZE 3072
#define SLANG_MACHINE_STACK_SIZE 1024
#define SLANG_MACHINE_MEMORY_SIZE (SLANG_MACHINE_GLOBAL_SIZE + SLANG_MACHINE_STACK_SIZE)
#if defined(USE_X86_ASM) || defined(SLANG_X86)
/**
* Extra machine state for x86 execution.
*/
typedef struct
{
GLvoid(*compiled_func) (struct slang_machine_ *);
GLuint esp_restore;
GLshort fpucntl_rnd_neg;
GLshort fpucntl_restore;
} slang_machine_x86;
#endif
/**
* Runtime shader machine state.
*/
typedef struct slang_machine_
{
GLuint ip; /**< instruction pointer, for flow control */
GLuint sp; /**< stack pointer, for stack access */
GLuint bp; /**< base pointer, for local variable access */
GLboolean kill; /**< discard the fragment? */
GLboolean exit; /**< terminate the shader */
/** Machine memory */
slang_machine_slot mem[SLANG_MACHINE_MEMORY_SIZE];
struct slang_info_log_ *infolog; /**< printMESA() support */
#if defined(USE_X86_ASM) || defined(SLANG_X86)
slang_machine_x86 x86;
#endif
} slang_machine;
extern GLvoid
slang_machine_ctr(slang_machine *);
extern GLvoid
slang_machine_dtr(slang_machine *);
extern void
slang_machine_init(slang_machine *);
extern GLboolean
_slang_execute2(const slang_assembly_file *, slang_machine *);
#if defined(USE_X86_ASM) || defined(SLANG_X86)
extern GLboolean
_slang_x86_codegen(slang_machine *, slang_assembly_file *, GLuint);
#endif
#ifdef __cplusplus
}
#endif
#endif
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