src/gallium/state_trackers/vega/asm_util.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.  All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * 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
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  20  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  **************************************************************************/
  26
  27 #ifndef ASM_UTIL_H
  28 #define ASM_UTIL_H
  29
  30 /* μnew = μmask */
  31 static const char set_mask_asm[] =
  32    "FRAG\n"
  33    "DCL IN[0], GENERIC[0], PERSPECTIVE\n"
  34    "DCL SAMP[0], CONSTANT\n"
  35    "DCL OUT[0], COLOR, CONSTANT\n"
  36    "0: TEX OUT[0], IN[0], SAMP[0], 2D\n"/*umask*/
  37    "1: END\n";
  38
  39 /* μnew = 1 – (1 – μmask)*(1 – μprev) */
  40 static const char union_mask_asm[] =
  41    "FRAG\n"
  42    "DCL IN[0], GENERIC[0], PERSPECTIVE\n"
  43    "DCL IN[1], POSITION, LINEAR\n"
  44    "DCL CONST[0], CONSTANT\n"
  45    "DCL SAMP[0..1], CONSTANT\n"
  46    "DCL TEMP[0..3], CONSTANT\n"
  47    "DCL OUT[0], COLOR, CONSTANT\n"
  48    "0: TEX TEMP[1], IN[0], SAMP[0], 2D\n"/*umask*/
  49    "1: TEX TEMP[0], IN[1], SAMP[1], 2D\n"/*uprev*/
  50    "2: SUB TEMP[2], CONST[0], TEMP[0]\n"
  51    "3: SUB TEMP[3], CONST[0], TEMP[1]\n"
  52    "4: MUL TEMP[0].w, TEMP[2].wwww, TEMP[3].wwww\n"
  53    "5: SUB OUT[0], CONST[0], TEMP[0]\n"
  54    "6: END\n";
  55
  56 /* μnew = μmask *μprev */
  57 static const char intersect_mask_asm[] =
  58    "FRAG\n"
  59    "DCL IN[0], GENERIC[0], PERSPECTIVE\n"
  60    "DCL IN[1], POSITION, LINEAR\n"
  61    "DCL CONST[0], CONSTANT\n"
  62    "DCL SAMP[0..1], CONSTANT\n"
  63    "DCL TEMP[0..1], CONSTANT\n"
  64    "DCL OUT[0], COLOR, CONSTANT\n"
  65    "0: TEX TEMP[0], IN[1], SAMP[1], 2D\n"/*uprev*/
  66    "1: TEX TEMP[1], IN[0], SAMP[0], 2D\n"/*umask*/
  67    "2: MUL OUT[0], TEMP[0].wwww, TEMP[1].wwww\n"
  68    "3: END\n";
  69
  70 /* μnew = μprev*(1 – μmask) */
  71 static const char subtract_mask_asm[] =
  72    "FRAG\n"
  73    "DCL IN[0], GENERIC[0], PERSPECTIVE\n"
  74    "DCL IN[1], POSITION, LINEAR\n"
  75    "DCL CONST[0], CONSTANT\n"
  76    "DCL SAMP[0..1], CONSTANT\n"
  77    "DCL TEMP[0..2], CONSTANT\n"
  78    "DCL OUT[0], COLOR, CONSTANT\n"
  79    "0: TEX TEMP[1], IN[0], SAMP[0], 2D\n"/*umask*/
  80    "1: TEX TEMP[0], IN[1], SAMP[1], 2D\n"/*uprev*/
  81    "2: SUB TEMP[2], CONST[0], TEMP[1]\n"
  82    "3: MUL OUT[0], TEMP[2].wwww, TEMP[0].wwww\n"
  83    "4: END\n";
  84
  85 #endif