src/mesa/shader/slang/slang_execute.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.5.2
   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 #ifndef 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
  35 /**
  36  * A memory location
  37  */
  38 typedef union slang_machine_slot_
  39 {
  40    GLfloat _float;
  41    GLuint _addr;
  42 } slang_machine_slot;
  43
  44 #define SLANG_MACHINE_GLOBAL_SIZE 3072
  45 #define SLANG_MACHINE_STACK_SIZE 1024
  46 #define SLANG_MACHINE_MEMORY_SIZE (SLANG_MACHINE_GLOBAL_SIZE + SLANG_MACHINE_STACK_SIZE)
  47
  48
  49 #if defined(USE_X86_ASM) || defined(SLANG_X86)
  50 /**
  51  * Extra machine state for x86 execution.
  52  */
  53 typedef struct
  54 {
  55    GLvoid(*compiled_func) (struct slang_machine_ *);
  56    GLuint esp_restore;
  57    GLshort fpucntl_rnd_neg;
  58    GLshort fpucntl_restore;
  59 } slang_machine_x86;
  60 #endif
  61
  62
  63 /**
  64  * Runtime shader machine state.
  65  */
  66 typedef struct slang_machine_
  67 {
  68    GLuint ip;               /**< instruction pointer, for flow control */
  69    GLuint sp;               /**< stack pointer, for stack access */
  70    GLuint bp;               /**< base pointer, for local variable access */
  71    GLboolean kill;          /**< discard the fragment? */
  72    GLboolean exit;          /**< terminate the shader */
  73    /** Machine memory */
  74    slang_machine_slot mem[SLANG_MACHINE_MEMORY_SIZE];
  75    struct slang_info_log_ *infolog;     /**< printMESA() support */
  76 #if defined(USE_X86_ASM) || defined(SLANG_X86)
  77    slang_machine_x86 x86;
  78 #endif
  79 } slang_machine;
  80
  81
  82 extern GLvoid
  83 slang_machine_ctr(slang_machine *);
  84
  85 extern GLvoid
  86 slang_machine_dtr(slang_machine *);
  87
  88 extern void
  89 slang_machine_init(slang_machine *);
  90
  91 extern GLboolean
  92 _slang_execute2(const slang_assembly_file *, slang_machine *);
  93
  94
  95 #if defined(USE_X86_ASM) || defined(SLANG_X86)
  96 extern GLboolean
  97 _slang_x86_codegen(slang_machine *, slang_assembly_file *, GLuint);
  98 #endif
  99
 100
 101 #ifdef __cplusplus
 102 }
 103 #endif
 104
 105 #endif