2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
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:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
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.
26 /* Private fragment program types and constants only used by files
27 * related to fragment programs.
29 * XXX TO-DO: Rename this file "fragprog.h" since it's not NV-specific.
39 /* output registers */
40 #define FRAG_OUTPUT_COLR 0
41 #define FRAG_OUTPUT_COLH 1
42 #define FRAG_OUTPUT_DEPR 2
46 #define COND_GT 1 /* greater than zero */
47 #define COND_EQ 2 /* equal to zero */
48 #define COND_LT 3 /* less than zero */
49 #define COND_UN 4 /* unordered (NaN) */
50 #define COND_GE 5 /* greater then or equal to zero */
51 #define COND_LE 6 /* less then or equal to zero */
52 #define COND_NE 7 /* not equal to zero */
53 #define COND_TR 8 /* always true */
54 #define COND_FL 9 /* always false */
57 /* instruction precision */
63 /* Fragment program instruction opcodes */
65 FP_OPCODE_INVALID
= -1, /* Force signed enum */
66 FP_OPCODE_ABS
= 1000, /* ARB_f_p only */
68 FP_OPCODE_CMP
, /* ARB_f_p only */
70 FP_OPCODE_DDX
, /* NV_f_p only */
71 FP_OPCODE_DDY
, /* NV_f_p only */
74 FP_OPCODE_DPH
, /* ARB_f_p only */
79 FP_OPCODE_KIL_NV
, /* NV_f_p only */
80 FP_OPCODE_KIL
, /* ARB_f_p only */
89 FP_OPCODE_PK2H
, /* NV_f_p only */
90 FP_OPCODE_PK2US
, /* NV_f_p only */
91 FP_OPCODE_PK4B
, /* NV_f_p only */
92 FP_OPCODE_PK4UB
, /* NV_f_p only */
95 FP_OPCODE_RFL
, /* NV_f_p only */
97 FP_OPCODE_SCS
, /* ARB_f_p only */
98 FP_OPCODE_SEQ
, /* NV_f_p only */
99 FP_OPCODE_SFL
, /* NV_f_p only */
100 FP_OPCODE_SGE
, /* NV_f_p only */
101 FP_OPCODE_SGT
, /* NV_f_p only */
103 FP_OPCODE_SLE
, /* NV_f_p only */
105 FP_OPCODE_SNE
, /* NV_f_p only */
106 FP_OPCODE_STR
, /* NV_f_p only */
108 FP_OPCODE_SWZ
, /* ARB_f_p only */
110 FP_OPCODE_TXB
, /* ARB_f_p only */
111 FP_OPCODE_TXD
, /* NV_f_p only */
112 FP_OPCODE_TXP
, /* ARB_f_p only */
113 FP_OPCODE_TXP_NV
, /* NV_f_p only */
114 FP_OPCODE_UP2H
, /* NV_f_p only */
115 FP_OPCODE_UP2US
, /* NV_f_p only */
116 FP_OPCODE_UP4B
, /* NV_f_p only */
117 FP_OPCODE_UP4UB
, /* NV_f_p only */
118 FP_OPCODE_X2D
, /* NV_f_p only - 2d mat mul */
119 FP_OPCODE_XPD
, /* ARB_f_p only - cross product */
120 FP_OPCODE_END
/* private opcode */
124 /* Instruction source register */
125 struct fp_src_register
127 enum register_file File
;
130 GLboolean NegateBase
; /* negate before absolute value? */
131 GLboolean Abs
; /* take absolute value? */
132 GLboolean NegateAbs
; /* negate after absolute value? */
136 /* Instruction destination register */
137 struct fp_dst_register
139 enum register_file File
;
141 GLboolean WriteMask
[4];
143 GLuint CondSwizzle
[4];
147 /* Fragment program instruction */
148 struct fp_instruction
150 enum fp_opcode Opcode
;
151 struct fp_src_register SrcReg
[3];
152 struct fp_dst_register DstReg
;
154 GLboolean UpdateCondRegister
;
155 GLubyte Precision
; /* FLOAT32, FLOAT16 or FIXED12 */
156 GLubyte TexSrcUnit
; /* texture unit for TEX, TXD, TXP instructions */
157 GLubyte TexSrcBit
; /* TEXTURE_1D,2D,3D,CUBE,RECT_BIT source target */
158 #if FEATURE_MESA_program_debug