src/mesa/drivers/dri/r300/radeon_program.h

   1 /*
   2  * Copyright (C) 2008 Nicolai Haehnle.
   3  *
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining
   7  * a copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sublicense, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial
  16  * portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  */
  27
  28 #ifndef __RADEON_PROGRAM_H_
  29 #define __RADEON_PROGRAM_H_
  30
  31 #include "glheader.h"
  32 #include "macros.h"
  33 #include "enums.h"
  34 #include "shader/program.h"
  35 #include "shader/prog_instruction.h"
  36
  37
  38 enum {
  39         CLAUSE_MIXED = 0,
  40         CLAUSE_ALU,
  41         CLAUSE_TEX
  42 };
  43
  44 /**
  45  * A clause is simply a sequence of instructions that are executed
  46  * in order.
  47  */
  48 struct radeon_clause {
  49         /**
  50          * Type of this clause, one of CLAUSE_XXX.
  51          */
  52         int Type : 2;
  53
  54         /**
  55          * Pointer to an array of instructions.
  56          * The array is terminated by an OPCODE_END instruction.
  57          */
  58         struct prog_instruction *Instructions;
  59
  60         /**
  61          * Number of instructions in this clause.
  62          */
  63         int NumInstructions;
  64
  65         /**
  66          * Space reserved for instructions in this clause.
  67          */
  68         int ReservedInstructions;
  69 };
  70
  71 /**
  72  * A compile object, holding the current intermediate state during compilation.
  73  */
  74 struct radeon_compiler {
  75         struct gl_program *Source;
  76         GLcontext* Ctx;
  77
  78         /**
  79          * Number of clauses in this program.
  80          */
  81         int NumClauses;
  82
  83         /**
  84          * Pointer to an array of NumClauses clauses.
  85          */
  86         struct radeon_clause *Clauses;
  87
  88         /**
  89          * Number of registers in the PROGRAM_TEMPORARIES file.
  90          */
  91         int NumTemporaries;
  92 };
  93
  94 void radeonCompilerInit(
  95         struct radeon_compiler *compiler,
  96         GLcontext *ctx,
  97         struct gl_program *source);
  98 void radeonCompilerCleanup(struct radeon_compiler *compiler);
  99 int radeonCompilerAllocateTemporary(struct radeon_compiler *compiler);
 100
 101 struct radeon_clause *radeonCompilerInsertClause(
 102         struct radeon_compiler *compiler,
 103         int position,
 104         int type);
 105 void radeonCompilerEraseClauses(
 106         struct radeon_compiler *compiler,
 107         int start,
 108         int end);
 109
 110 #endif