src/mesa/shader/slang/slang_execute.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.5
   4  *
   5  * Copyright (C) 2005-2006  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #if !defined SLANG_EXECUTE_H
  26 #define SLANG_EXECUTE_H
  27
  28 #include "slang_assemble.h"
  29
  30 #if defined __cplusplus
  31 extern "C" {
  32 #endif
  33
  34 typedef union slang_machine_slot_
  35 {
  36         GLfloat _float;
  37         GLuint _addr;
  38 } slang_machine_slot;
  39
  40 #define SLANG_MACHINE_GLOBAL_SIZE 3072
  41 #define SLANG_MACHINE_STACK_SIZE 1024
  42 #define SLANG_MACHINE_MEMORY_SIZE (SLANG_MACHINE_GLOBAL_SIZE + SLANG_MACHINE_STACK_SIZE)
  43
  44 #if defined(USE_X86_ASM) || defined(SLANG_X86)
  45 typedef struct
  46 {
  47         GLvoid (* compiled_func) (struct slang_machine_ *);
  48         GLuint esp_restore;
  49         GLshort fpucntl_rnd_neg;
  50         GLshort fpucntl_restore;
  51 } slang_machine_x86;
  52 #endif
  53
  54 typedef struct slang_machine_
  55 {
  56         GLuint ip;                                      /* instruction pointer, for flow control */
  57         GLuint sp;                                      /* stack pointer, for stack access */
  58         GLuint bp;                                      /* base pointer, for local variable access */
  59         GLuint kill;                            /* discard the fragment */
  60         GLuint exit;                            /* terminate the shader */
  61         slang_machine_slot mem[SLANG_MACHINE_MEMORY_SIZE];
  62 #if defined(USE_X86_ASM) || defined(SLANG_X86)
  63         slang_machine_x86 x86;
  64 #endif
  65 } slang_machine;
  66
  67 GLvoid slang_machine_ctr (slang_machine *);
  68 GLvoid slang_machine_dtr (slang_machine *);
  69
  70 void slang_machine_init (slang_machine *);
  71
  72 int _slang_execute (const slang_assembly_file *);
  73 int _slang_execute2 (const slang_assembly_file *, slang_machine *);
  74
  75 #ifdef __cplusplus
  76 }
  77 #endif
  78
  79 #endif
  80