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change program options numbering to accommodate future

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options (up to 256)
This commit is contained in:
Michal Krol 2004-10-21 13:57:24 +00:00
parent cbef98c2ea
commit 718ba9773b
2 changed files with 50 additions and 28 deletions
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62
src/mesa/shader/arbprogram.syn
View file

@ -1,3 +1,33 @@
/*
* Mesa 3-D graphics library
* Version: 6.2
*
* Copyright (C) 1999-2004 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.
*/
/**
* \file arbprogram.syn
* ARB_fragment/vertex_program syntax
* \author Michal Krol
*/
.syntax program;
/*
@ -18,29 +48,21 @@
.emtcode DECLARATION 0x03
.emtcode END 0x04
/* GL_ARB_fragment_program option flags */
.emtcode ARB_PRECISION_HINT_FASTEST 0x01
.emtcode ARB_PRECISION_HINT_NICEST 0x02
.emtcode ARB_FOG_EXP 0x04
.emtcode ARB_FOG_EXP2 0x08
.emtcode ARB_FOG_LINEAR 0x10
/* GL_ARB_fragment_program option */
.emtcode ARB_PRECISION_HINT_FASTEST 0x00
.emtcode ARB_PRECISION_HINT_NICEST 0x01
.emtcode ARB_FOG_EXP 0x02
.emtcode ARB_FOG_EXP2 0x03
.emtcode ARB_FOG_LINEAR 0x04
/* GL_ARB_vertex_program option flags */
.emtcode ARB_POSITION_INVARIANT 0x20
/* GL_ARB_vertex_program option */
.emtcode ARB_POSITION_INVARIANT 0x05
/* GL_ARB_fragment_program_shadow option flags */
.emtcode ARB_FRAGMENT_PROGRAM_SHADOW 0x40
/* GL_ARB_fragment_program_shadow option */
.emtcode ARB_FRAGMENT_PROGRAM_SHADOW 0x06
/* GL_ARB_draw_buffers option flags */
.emtcode ARB_DRAW_BUFFERS 0x80
/* if we need more flags, we have three options:
1) change the existing flags to indicate an option to a shift, so 0x01 becomes 0 (because
1 << 0 is 0x01), 0x02 becomes 1 (1 << 1 == 0x02), and so on - this would give us
256 flags,
2) mark special value of 0 to say "the following byte will hold the upper 8 bit flags",
3) expand all the existing flags to be 2 bytes long
*/
/* GL_ARB_draw_buffers option */
.emtcode ARB_DRAW_BUFFERS 0x07
/* GL_ARB_fragment_program instruction class */
.emtcode OP_ALU_INST 0x00

16
src/mesa/shader/arbprogram_syn.h
View file

@ -6,14 +6,14 @@
".emtcode INSTRUCTION 0x02\n"
".emtcode DECLARATION 0x03\n"
".emtcode END 0x04\n"
".emtcode ARB_PRECISION_HINT_FASTEST 0x01\n"
".emtcode ARB_PRECISION_HINT_NICEST 0x02\n"
".emtcode ARB_FOG_EXP 0x04\n"
".emtcode ARB_FOG_EXP2 0x08\n"
".emtcode ARB_FOG_LINEAR 0x10\n"
".emtcode ARB_POSITION_INVARIANT 0x20\n"
".emtcode ARB_FRAGMENT_PROGRAM_SHADOW 0x40\n"
".emtcode ARB_DRAW_BUFFERS 0x80\n"
".emtcode ARB_PRECISION_HINT_FASTEST 0x00\n"
".emtcode ARB_PRECISION_HINT_NICEST 0x01\n"
".emtcode ARB_FOG_EXP 0x02\n"
".emtcode ARB_FOG_EXP2 0x03\n"
".emtcode ARB_FOG_LINEAR 0x04\n"
".emtcode ARB_POSITION_INVARIANT 0x05\n"
".emtcode ARB_FRAGMENT_PROGRAM_SHADOW 0x06\n"
".emtcode ARB_DRAW_BUFFERS 0x07\n"
".emtcode OP_ALU_INST 0x00\n"
".emtcode OP_TEX_INST 0x01\n"
".emtcode OP_ALU_VECTOR 0x00\n"