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<!---======================= begin_copyright_notice ============================
Copyright (C) 2020-2022 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ==========================-->
## Opcode
INFO = 0x70
## Format
| | | | | | |
| --- | --- | --- | --- | --- | --- |
| 0x70(INFO) | Op | Exec_size | Surface | LOD | Dst |
## Semantics
```
Returns information about the surface
```
## Description
```
<exec_size>*4 elements are returned in RGBA order with the format described below. Only the enabled pixels are written to in <dst>.
**Return format for resinfo:**
+----------------+------------------------------------+--------------------------------------+------------------+------------+
| Surface type | R | G | B | A |
+----------------+------------------------------------+--------------------------------------+------------------+------------+
| 1D | (Width+1)>>LOD | 0 | 0 | MIPCount |
+----------------+------------------------------------+--------------------------------------+------------------+------------+
| 1D_array | (Width+1)>>LOD | Depth+1 | 0 | MIPCount |
+----------------+------------------------------------+--------------------------------------+------------------+------------+
| 2D | ((Width+1)>>LOD)*(QuiltWidth+1) | ((Height+1)>>LOD)*(QuiltHeight+1) | 0 | MIPCount |
+----------------+------------------------------------+--------------------------------------+------------------+------------+
| 2D_array | ((Width+1)>>LOD)*(QuiltWidth+1) | ((Height+1)>>LOD)*(QuiltHeight+1) | Depth+1 | MIPCount |
+----------------+------------------------------------+--------------------------------------+------------------+------------+
| 3D | (Width+1)>>LOD | (Height+1)>>LOD | (Depth+1)>>LOD | MIPCount |
+----------------+------------------------------------+--------------------------------------+------------------+------------+
| CUBE | Buffer size | (Height+1)>>LOD | Depth+1 | MIPCount |
+----------------+------------------------------------+--------------------------------------+------------------+------------+
Return format for sampleinfo:
+----------------+---------------------+-------+-------+---------------------------------+
| Surface type | R | G | B | A |
+----------------+---------------------+-------+-------+---------------------------------+
| 2D | Number of samples | N/A | N/A | Sample position palette index |
+----------------+---------------------+-------+-------+---------------------------------+
```
- **Op(uw):**
- Bit[7..0]: encodes the sampler operation
- 0b00001010: resinfo
- 0b00001011: sampleinfo
- **Exec_size(ub):** Execution size
- Bit[2..0]: size of the region for source and destination operands
- 0b011: 8 elements
- 0b100: 16 elements
- 0b101: 32 elements
- Bit[7..4]: execution mask (explicit control over the enabled channels)
- 0b0000: M1
- 0b0001: M2
- 0b0010: M3
- 0b0011: M4
- 0b0100: M5
- 0b0101: M6
- 0b0110: M7
- 0b0111: M8
- 0b1000: M1_NM
- 0b1001: M2_NM
- 0b1010: M3_NM
- 0b1011: M4_NM
- 0b1100: M5_NM
- 0b1101: M6_NM
- 0b1110: M7_NM
- 0b1111: M8_NM
- **Surface(ub):** Index of the surface variable
- **LOD(raw_operand):** The LOD parameter. The field is present only for resinfo. Must have type UD
- **Dst(raw_operand):** results of the sampler operation. Must have type UD
#### Properties
## Text
```
RESINFO (exec_size) <surface> <lod> <dst>
SAMPLEINFO (exec_size) <surface> <dst>
```
## Notes
|
