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kolibrios/drivers/video/Gallium/include/pipe/p_shader_tokens.h
Sergey Semyonov (Serge) edb28b33f3 Gallium 3D: initial commit 
git-svn-id: svn://kolibrios.org@3770 a494cfbc-eb01-0410-851d-a64ba20cac60
2013-07-06 10:06:47 +00:00

642 lines
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C
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/**************************************************************************
*
* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
* Copyright 2009-2010 VMware, Inc.
* 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, sub license, 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 (including the
* next paragraph) 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
*
**************************************************************************/
#ifndef P_SHADER_TOKENS_H
#define P_SHADER_TOKENS_H
#ifdef __cplusplus
extern "C" {
#endif
struct tgsi_header
{
unsigned HeaderSize : 8;
unsigned BodySize : 24;
};
#define TGSI_PROCESSOR_FRAGMENT 0
#define TGSI_PROCESSOR_VERTEX 1
#define TGSI_PROCESSOR_GEOMETRY 2
#define TGSI_PROCESSOR_COMPUTE 3
struct tgsi_processor
{
unsigned Processor : 4; /* TGSI_PROCESSOR_ */
unsigned Padding : 28;
};
#define TGSI_TOKEN_TYPE_DECLARATION 0
#define TGSI_TOKEN_TYPE_IMMEDIATE 1
#define TGSI_TOKEN_TYPE_INSTRUCTION 2
#define TGSI_TOKEN_TYPE_PROPERTY 3
struct tgsi_token
{
unsigned Type : 4; /**< TGSI_TOKEN_TYPE_x */
unsigned NrTokens : 8; /**< UINT */
unsigned Padding : 20;
};
enum tgsi_file_type {
TGSI_FILE_NULL =0,
TGSI_FILE_CONSTANT =1,
TGSI_FILE_INPUT =2,
TGSI_FILE_OUTPUT =3,
TGSI_FILE_TEMPORARY =4,
TGSI_FILE_SAMPLER =5,
TGSI_FILE_ADDRESS =6,
TGSI_FILE_IMMEDIATE =7,
TGSI_FILE_PREDICATE =8,
TGSI_FILE_SYSTEM_VALUE =9,
TGSI_FILE_RESOURCE =10,
TGSI_FILE_SAMPLER_VIEW =11,
TGSI_FILE_COUNT /**< how many TGSI_FILE_ types */
};
#define TGSI_WRITEMASK_NONE 0x00
#define TGSI_WRITEMASK_X 0x01
#define TGSI_WRITEMASK_Y 0x02
#define TGSI_WRITEMASK_XY 0x03
#define TGSI_WRITEMASK_Z 0x04
#define TGSI_WRITEMASK_XZ 0x05
#define TGSI_WRITEMASK_YZ 0x06
#define TGSI_WRITEMASK_XYZ 0x07
#define TGSI_WRITEMASK_W 0x08
#define TGSI_WRITEMASK_XW 0x09
#define TGSI_WRITEMASK_YW 0x0A
#define TGSI_WRITEMASK_XYW 0x0B
#define TGSI_WRITEMASK_ZW 0x0C
#define TGSI_WRITEMASK_XZW 0x0D
#define TGSI_WRITEMASK_YZW 0x0E
#define TGSI_WRITEMASK_XYZW 0x0F
#define TGSI_INTERPOLATE_CONSTANT 0
#define TGSI_INTERPOLATE_LINEAR 1
#define TGSI_INTERPOLATE_PERSPECTIVE 2
#define TGSI_INTERPOLATE_COLOR 3 /* special color case for smooth/flat */
#define TGSI_INTERPOLATE_COUNT 4
#define TGSI_CYLINDRICAL_WRAP_X (1 << 0)
#define TGSI_CYLINDRICAL_WRAP_Y (1 << 1)
#define TGSI_CYLINDRICAL_WRAP_Z (1 << 2)
#define TGSI_CYLINDRICAL_WRAP_W (1 << 3)
struct tgsi_declaration
{
unsigned Type : 4; /**< TGSI_TOKEN_TYPE_DECLARATION */
unsigned NrTokens : 8; /**< UINT */
unsigned File : 4; /**< one of TGSI_FILE_x */
unsigned UsageMask : 4; /**< bitmask of TGSI_WRITEMASK_x flags */
unsigned Dimension : 1; /**< any extra dimension info? */
unsigned Semantic : 1; /**< BOOL, any semantic info? */
unsigned Interpolate : 1; /**< any interpolation info? */
unsigned Invariant : 1; /**< invariant optimization? */
unsigned Local : 1; /**< optimize as subroutine local variable? */
unsigned Array : 1; /**< extra array info? */
unsigned Padding : 6;
};
struct tgsi_declaration_range
{
unsigned First : 16; /**< UINT */
unsigned Last : 16; /**< UINT */
};
struct tgsi_declaration_dimension
{
unsigned Index2D:16; /**< UINT */
unsigned Padding:16;
};
struct tgsi_declaration_interp
{
unsigned Interpolate : 4; /**< one of TGSI_INTERPOLATE_x */
unsigned Centroid : 1; /**< centroid sampling? */
unsigned CylindricalWrap:4; /**< TGSI_CYLINDRICAL_WRAP_x flags */
unsigned Padding : 23;
};
#define TGSI_SEMANTIC_POSITION 0
#define TGSI_SEMANTIC_COLOR 1
#define TGSI_SEMANTIC_BCOLOR 2 /**< back-face color */
#define TGSI_SEMANTIC_FOG 3
#define TGSI_SEMANTIC_PSIZE 4
#define TGSI_SEMANTIC_GENERIC 5
#define TGSI_SEMANTIC_NORMAL 6
#define TGSI_SEMANTIC_FACE 7
#define TGSI_SEMANTIC_EDGEFLAG 8
#define TGSI_SEMANTIC_PRIMID 9
#define TGSI_SEMANTIC_INSTANCEID 10
#define TGSI_SEMANTIC_VERTEXID 11
#define TGSI_SEMANTIC_STENCIL 12
#define TGSI_SEMANTIC_CLIPDIST 13
#define TGSI_SEMANTIC_CLIPVERTEX 14
#define TGSI_SEMANTIC_GRID_SIZE 15 /**< grid size in blocks */
#define TGSI_SEMANTIC_BLOCK_ID 16 /**< id of the current block */
#define TGSI_SEMANTIC_BLOCK_SIZE 17 /**< block size in threads */
#define TGSI_SEMANTIC_THREAD_ID 18 /**< block-relative id of the current thread */
#define TGSI_SEMANTIC_TEXCOORD 19 /**< texture or sprite coordinates */
#define TGSI_SEMANTIC_PCOORD 20 /**< point sprite coordinate */
#define TGSI_SEMANTIC_VIEWPORT_INDEX 21 /**< viewport index */
#define TGSI_SEMANTIC_LAYER 22 /**< layer (rendertarget index) */
#define TGSI_SEMANTIC_CULLDIST 23
#define TGSI_SEMANTIC_COUNT 24 /**< number of semantic values */
struct tgsi_declaration_semantic
{
unsigned Name : 8; /**< one of TGSI_SEMANTIC_x */
unsigned Index : 16; /**< UINT */
unsigned Padding : 8;
};
struct tgsi_declaration_resource {
unsigned Resource : 8; /**< one of TGSI_TEXTURE_ */
unsigned Raw : 1;
unsigned Writable : 1;
unsigned Padding : 22;
};
struct tgsi_declaration_sampler_view {
unsigned Resource : 8; /**< one of TGSI_TEXTURE_ */
unsigned ReturnTypeX : 6; /**< one of enum pipe_type */
unsigned ReturnTypeY : 6; /**< one of enum pipe_type */
unsigned ReturnTypeZ : 6; /**< one of enum pipe_type */
unsigned ReturnTypeW : 6; /**< one of enum pipe_type */
};
struct tgsi_declaration_array {
unsigned ArrayID : 10;
unsigned Padding : 22;
};
/*
* Special resources that don't need to be declared. They map to the
* GLOBAL/LOCAL/PRIVATE/INPUT compute memory spaces.
*/
#define TGSI_RESOURCE_GLOBAL 0x7fff
#define TGSI_RESOURCE_LOCAL 0x7ffe
#define TGSI_RESOURCE_PRIVATE 0x7ffd
#define TGSI_RESOURCE_INPUT 0x7ffc
#define TGSI_IMM_FLOAT32 0
#define TGSI_IMM_UINT32 1
#define TGSI_IMM_INT32 2
struct tgsi_immediate
{
unsigned Type : 4; /**< TGSI_TOKEN_TYPE_IMMEDIATE */
unsigned NrTokens : 14; /**< UINT */
unsigned DataType : 4; /**< one of TGSI_IMM_x */
unsigned Padding : 10;
};
union tgsi_immediate_data
{
float Float;
unsigned Uint;
int Int;
};
#define TGSI_PROPERTY_GS_INPUT_PRIM 0
#define TGSI_PROPERTY_GS_OUTPUT_PRIM 1
#define TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES 2
#define TGSI_PROPERTY_FS_COORD_ORIGIN 3
#define TGSI_PROPERTY_FS_COORD_PIXEL_CENTER 4
#define TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS 5
#define TGSI_PROPERTY_FS_DEPTH_LAYOUT 6
#define TGSI_PROPERTY_VS_PROHIBIT_UCPS 7
#define TGSI_PROPERTY_COUNT 8
struct tgsi_property {
unsigned Type : 4; /**< TGSI_TOKEN_TYPE_PROPERTY */
unsigned NrTokens : 8; /**< UINT */
unsigned PropertyName : 8; /**< one of TGSI_PROPERTY */
unsigned Padding : 12;
};
#define TGSI_FS_COORD_ORIGIN_UPPER_LEFT 0
#define TGSI_FS_COORD_ORIGIN_LOWER_LEFT 1
#define TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER 0
#define TGSI_FS_COORD_PIXEL_CENTER_INTEGER 1
#define TGSI_FS_DEPTH_LAYOUT_NONE 0
#define TGSI_FS_DEPTH_LAYOUT_ANY 1
#define TGSI_FS_DEPTH_LAYOUT_GREATER 2
#define TGSI_FS_DEPTH_LAYOUT_LESS 3
#define TGSI_FS_DEPTH_LAYOUT_UNCHANGED 4
struct tgsi_property_data {
unsigned Data;
};
/* TGSI opcodes.
*
* For more information on semantics of opcodes and
* which APIs are known to use which opcodes, see
* gallium/docs/source/tgsi.rst
*/
#define TGSI_OPCODE_ARL 0
#define TGSI_OPCODE_MOV 1
#define TGSI_OPCODE_LIT 2
#define TGSI_OPCODE_RCP 3
#define TGSI_OPCODE_RSQ 4
#define TGSI_OPCODE_EXP 5
#define TGSI_OPCODE_LOG 6
#define TGSI_OPCODE_MUL 7
#define TGSI_OPCODE_ADD 8
#define TGSI_OPCODE_DP3 9
#define TGSI_OPCODE_DP4 10
#define TGSI_OPCODE_DST 11
#define TGSI_OPCODE_MIN 12
#define TGSI_OPCODE_MAX 13
#define TGSI_OPCODE_SLT 14
#define TGSI_OPCODE_SGE 15
#define TGSI_OPCODE_MAD 16
#define TGSI_OPCODE_SUB 17
#define TGSI_OPCODE_LRP 18
#define TGSI_OPCODE_CND 19
#define TGSI_OPCODE_SQRT 20
#define TGSI_OPCODE_DP2A 21
/* gap */
#define TGSI_OPCODE_FRC 24
#define TGSI_OPCODE_CLAMP 25
#define TGSI_OPCODE_FLR 26
#define TGSI_OPCODE_ROUND 27
#define TGSI_OPCODE_EX2 28
#define TGSI_OPCODE_LG2 29
#define TGSI_OPCODE_POW 30
#define TGSI_OPCODE_XPD 31
/* gap */
#define TGSI_OPCODE_ABS 33
#define TGSI_OPCODE_RCC 34
#define TGSI_OPCODE_DPH 35
#define TGSI_OPCODE_COS 36
#define TGSI_OPCODE_DDX 37
#define TGSI_OPCODE_DDY 38
#define TGSI_OPCODE_KILP 39 /* predicated kill */
#define TGSI_OPCODE_PK2H 40
#define TGSI_OPCODE_PK2US 41
#define TGSI_OPCODE_PK4B 42
#define TGSI_OPCODE_PK4UB 43
#define TGSI_OPCODE_RFL 44
#define TGSI_OPCODE_SEQ 45
#define TGSI_OPCODE_SFL 46
#define TGSI_OPCODE_SGT 47
#define TGSI_OPCODE_SIN 48
#define TGSI_OPCODE_SLE 49
#define TGSI_OPCODE_SNE 50
#define TGSI_OPCODE_STR 51
#define TGSI_OPCODE_TEX 52
#define TGSI_OPCODE_TXD 53
#define TGSI_OPCODE_TXP 54
#define TGSI_OPCODE_UP2H 55
#define TGSI_OPCODE_UP2US 56
#define TGSI_OPCODE_UP4B 57
#define TGSI_OPCODE_UP4UB 58
#define TGSI_OPCODE_X2D 59
#define TGSI_OPCODE_ARA 60
#define TGSI_OPCODE_ARR 61
#define TGSI_OPCODE_BRA 62
#define TGSI_OPCODE_CAL 63
#define TGSI_OPCODE_RET 64
#define TGSI_OPCODE_SSG 65 /* SGN */
#define TGSI_OPCODE_CMP 66
#define TGSI_OPCODE_SCS 67
#define TGSI_OPCODE_TXB 68
#define TGSI_OPCODE_NRM 69
#define TGSI_OPCODE_DIV 70
#define TGSI_OPCODE_DP2 71
#define TGSI_OPCODE_TXL 72
#define TGSI_OPCODE_BRK 73
#define TGSI_OPCODE_IF 74
#define TGSI_OPCODE_UIF 75
#define TGSI_OPCODE_ELSE 77
#define TGSI_OPCODE_ENDIF 78
/* gap */
#define TGSI_OPCODE_PUSHA 81
#define TGSI_OPCODE_POPA 82
#define TGSI_OPCODE_CEIL 83
#define TGSI_OPCODE_I2F 84
#define TGSI_OPCODE_NOT 85
#define TGSI_OPCODE_TRUNC 86
#define TGSI_OPCODE_SHL 87
/* gap */
#define TGSI_OPCODE_AND 89
#define TGSI_OPCODE_OR 90
#define TGSI_OPCODE_MOD 91
#define TGSI_OPCODE_XOR 92
#define TGSI_OPCODE_SAD 93
#define TGSI_OPCODE_TXF 94
#define TGSI_OPCODE_TXQ 95
#define TGSI_OPCODE_CONT 96
#define TGSI_OPCODE_EMIT 97
#define TGSI_OPCODE_ENDPRIM 98
#define TGSI_OPCODE_BGNLOOP 99
#define TGSI_OPCODE_BGNSUB 100
#define TGSI_OPCODE_ENDLOOP 101
#define TGSI_OPCODE_ENDSUB 102
#define TGSI_OPCODE_TXQ_LZ 103 /* TXQ for mipmap level 0 */
/* gap */
#define TGSI_OPCODE_NOP 107
/* gap */
#define TGSI_OPCODE_NRM4 112
#define TGSI_OPCODE_CALLNZ 113
/* gap */
#define TGSI_OPCODE_BREAKC 115
#define TGSI_OPCODE_KIL 116 /* conditional kill */
#define TGSI_OPCODE_END 117 /* aka HALT */
/* gap */
#define TGSI_OPCODE_F2I 119
#define TGSI_OPCODE_IDIV 120
#define TGSI_OPCODE_IMAX 121
#define TGSI_OPCODE_IMIN 122
#define TGSI_OPCODE_INEG 123
#define TGSI_OPCODE_ISGE 124
#define TGSI_OPCODE_ISHR 125
#define TGSI_OPCODE_ISLT 126
#define TGSI_OPCODE_F2U 127
#define TGSI_OPCODE_U2F 128
#define TGSI_OPCODE_UADD 129
#define TGSI_OPCODE_UDIV 130
#define TGSI_OPCODE_UMAD 131
#define TGSI_OPCODE_UMAX 132
#define TGSI_OPCODE_UMIN 133
#define TGSI_OPCODE_UMOD 134
#define TGSI_OPCODE_UMUL 135
#define TGSI_OPCODE_USEQ 136
#define TGSI_OPCODE_USGE 137
#define TGSI_OPCODE_USHR 138
#define TGSI_OPCODE_USLT 139
#define TGSI_OPCODE_USNE 140
#define TGSI_OPCODE_SWITCH 141
#define TGSI_OPCODE_CASE 142
#define TGSI_OPCODE_DEFAULT 143
#define TGSI_OPCODE_ENDSWITCH 144
/* resource related opcodes */
#define TGSI_OPCODE_SAMPLE 145
#define TGSI_OPCODE_SAMPLE_I 146
#define TGSI_OPCODE_SAMPLE_I_MS 147
#define TGSI_OPCODE_SAMPLE_B 148
#define TGSI_OPCODE_SAMPLE_C 149
#define TGSI_OPCODE_SAMPLE_C_LZ 150
#define TGSI_OPCODE_SAMPLE_D 151
#define TGSI_OPCODE_SAMPLE_L 152
#define TGSI_OPCODE_GATHER4 153
#define TGSI_OPCODE_SVIEWINFO 154
#define TGSI_OPCODE_SAMPLE_POS 155
#define TGSI_OPCODE_SAMPLE_INFO 156
#define TGSI_OPCODE_UARL 157
#define TGSI_OPCODE_UCMP 158
#define TGSI_OPCODE_IABS 159
#define TGSI_OPCODE_ISSG 160
#define TGSI_OPCODE_LOAD 161
#define TGSI_OPCODE_STORE 162
#define TGSI_OPCODE_MFENCE 163
#define TGSI_OPCODE_LFENCE 164
#define TGSI_OPCODE_SFENCE 165
#define TGSI_OPCODE_BARRIER 166
#define TGSI_OPCODE_ATOMUADD 167
#define TGSI_OPCODE_ATOMXCHG 168
#define TGSI_OPCODE_ATOMCAS 169
#define TGSI_OPCODE_ATOMAND 170
#define TGSI_OPCODE_ATOMOR 171
#define TGSI_OPCODE_ATOMXOR 172
#define TGSI_OPCODE_ATOMUMIN 173
#define TGSI_OPCODE_ATOMUMAX 174
#define TGSI_OPCODE_ATOMIMIN 175
#define TGSI_OPCODE_ATOMIMAX 176
/* to be used for shadow cube map compares */
#define TGSI_OPCODE_TEX2 177
#define TGSI_OPCODE_TXB2 178
#define TGSI_OPCODE_TXL2 179
#define TGSI_OPCODE_LAST 180
#define TGSI_SAT_NONE 0 /* do not saturate */
#define TGSI_SAT_ZERO_ONE 1 /* clamp to [0,1] */
#define TGSI_SAT_MINUS_PLUS_ONE 2 /* clamp to [-1,1] */
/**
* Opcode is the operation code to execute. A given operation defines the
* semantics how the source registers (if any) are interpreted and what is
* written to the destination registers (if any) as a result of execution.
*
* NumDstRegs and NumSrcRegs is the number of destination and source registers,
* respectively. For a given operation code, those numbers are fixed and are
* present here only for convenience.
*
* If Predicate is TRUE, tgsi_instruction_predicate token immediately follows.
*
* Saturate controls how are final results in destination registers modified.
*/
struct tgsi_instruction
{
unsigned Type : 4; /* TGSI_TOKEN_TYPE_INSTRUCTION */
unsigned NrTokens : 8; /* UINT */
unsigned Opcode : 8; /* TGSI_OPCODE_ */
unsigned Saturate : 2; /* TGSI_SAT_ */
unsigned NumDstRegs : 2; /* UINT */
unsigned NumSrcRegs : 4; /* UINT */
unsigned Predicate : 1; /* BOOL */
unsigned Label : 1;
unsigned Texture : 1;
unsigned Padding : 1;
};
/*
* If tgsi_instruction::Label is TRUE, tgsi_instruction_label follows.
*
* If tgsi_instruction::Texture is TRUE, tgsi_instruction_texture follows.
* if texture instruction has a number of offsets,
* then tgsi_instruction::Texture::NumOffset of tgsi_texture_offset follow.
*
* Then, tgsi_instruction::NumDstRegs of tgsi_dst_register follow.
*
* Then, tgsi_instruction::NumSrcRegs of tgsi_src_register follow.
*
* tgsi_instruction::NrTokens contains the total number of words that make the
* instruction, including the instruction word.
*/
#define TGSI_SWIZZLE_X 0
#define TGSI_SWIZZLE_Y 1
#define TGSI_SWIZZLE_Z 2
#define TGSI_SWIZZLE_W 3
struct tgsi_instruction_label
{
unsigned Label : 24; /* UINT */
unsigned Padding : 8;
};
#define TGSI_TEXTURE_BUFFER 0
#define TGSI_TEXTURE_1D 1
#define TGSI_TEXTURE_2D 2
#define TGSI_TEXTURE_3D 3
#define TGSI_TEXTURE_CUBE 4
#define TGSI_TEXTURE_RECT 5
#define TGSI_TEXTURE_SHADOW1D 6
#define TGSI_TEXTURE_SHADOW2D 7
#define TGSI_TEXTURE_SHADOWRECT 8
#define TGSI_TEXTURE_1D_ARRAY 9
#define TGSI_TEXTURE_2D_ARRAY 10
#define TGSI_TEXTURE_SHADOW1D_ARRAY 11
#define TGSI_TEXTURE_SHADOW2D_ARRAY 12
#define TGSI_TEXTURE_SHADOWCUBE 13
#define TGSI_TEXTURE_2D_MSAA 14
#define TGSI_TEXTURE_2D_ARRAY_MSAA 15
#define TGSI_TEXTURE_CUBE_ARRAY 16
#define TGSI_TEXTURE_SHADOWCUBE_ARRAY 17
#define TGSI_TEXTURE_UNKNOWN 18
#define TGSI_TEXTURE_COUNT 19
struct tgsi_instruction_texture
{
unsigned Texture : 8; /* TGSI_TEXTURE_ */
unsigned NumOffsets : 4;
unsigned Padding : 20;
};
/* for texture offsets in GLSL and DirectX.
* Generally these always come from TGSI_FILE_IMMEDIATE,
* however DX11 appears to have the capability to do
* non-constant texture offsets.
*/
struct tgsi_texture_offset
{
int Index : 16;
unsigned File : 4; /**< one of TGSI_FILE_x */
unsigned SwizzleX : 2; /* TGSI_SWIZZLE_x */
unsigned SwizzleY : 2; /* TGSI_SWIZZLE_x */
unsigned SwizzleZ : 2; /* TGSI_SWIZZLE_x */
unsigned Padding : 6;
};
/*
* For SM3, the following constraint applies.
* - Swizzle is either set to identity or replicate.
*/
struct tgsi_instruction_predicate
{
int Index : 16; /* SINT */
unsigned SwizzleX : 2; /* TGSI_SWIZZLE_x */
unsigned SwizzleY : 2; /* TGSI_SWIZZLE_x */
unsigned SwizzleZ : 2; /* TGSI_SWIZZLE_x */
unsigned SwizzleW : 2; /* TGSI_SWIZZLE_x */
unsigned Negate : 1; /* BOOL */
unsigned Padding : 7;
};
/**
* File specifies the register array to access.
*
* Index specifies the element number of a register in the register file.
*
* If Indirect is TRUE, Index should be offset by the X component of the indirect
* register that follows. The register can be now fetched into local storage
* for further processing.
*
* If Negate is TRUE, all components of the fetched register are negated.
*
* The fetched register components are swizzled according to SwizzleX, SwizzleY,
* SwizzleZ and SwizzleW.
*
*/
struct tgsi_src_register
{
unsigned File : 4; /* TGSI_FILE_ */
unsigned Indirect : 1; /* BOOL */
unsigned Dimension : 1; /* BOOL */
int Index : 16; /* SINT */
unsigned SwizzleX : 2; /* TGSI_SWIZZLE_ */
unsigned SwizzleY : 2; /* TGSI_SWIZZLE_ */
unsigned SwizzleZ : 2; /* TGSI_SWIZZLE_ */
unsigned SwizzleW : 2; /* TGSI_SWIZZLE_ */
unsigned Absolute : 1; /* BOOL */
unsigned Negate : 1; /* BOOL */
};
/**
* If tgsi_src_register::Indirect is TRUE, tgsi_ind_register follows.
*
* File, Index and Swizzle are handled the same as in tgsi_src_register.
*
* If ArrayID is zero the whole register file might be is indirectly addressed,
* if not only the Declaration with this ArrayID is accessed by this operand.
*
*/
struct tgsi_ind_register
{
unsigned File : 4; /* TGSI_FILE_ */
int Index : 16; /* SINT */
unsigned Swizzle : 2; /* TGSI_SWIZZLE_ */
unsigned ArrayID : 10; /* UINT */
};
/**
* If tgsi_src_register::Dimension is TRUE, tgsi_dimension follows.
*/
struct tgsi_dimension
{
unsigned Indirect : 1; /* BOOL */
unsigned Dimension : 1; /* BOOL */
unsigned Padding : 14;
int Index : 16; /* SINT */
};
struct tgsi_dst_register
{
unsigned File : 4; /* TGSI_FILE_ */
unsigned WriteMask : 4; /* TGSI_WRITEMASK_ */
unsigned Indirect : 1; /* BOOL */
unsigned Dimension : 1; /* BOOL */
int Index : 16; /* SINT */
unsigned Padding : 6;
};
#ifdef __cplusplus
}
#endif
#endif /* P_SHADER_TOKENS_H */
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