mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 07:42:43 +00:00
1e548a84d6
This adds a simple instruction set with basic operations and adds an instruction list to the shader class.
63 lines
1.2 KiB
C++
63 lines
1.2 KiB
C++
/*
|
|
* Copyright (c) 2022, Stephan Unverwerth <s.unverwerth@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Types.h>
|
|
|
|
namespace SoftGPU {
|
|
|
|
constexpr u8 swizzle_pattern(u8 a, u8 b, u8 c, u8 d)
|
|
{
|
|
return a | (b << 2) | (c << 4) | (d << 6);
|
|
}
|
|
|
|
constexpr u8 swizzle_index(u8 pattern, u8 element)
|
|
{
|
|
return (pattern & (3 << (element * 2))) >> (element * 2);
|
|
}
|
|
|
|
enum class Opcode : u8 {
|
|
Input,
|
|
Output,
|
|
Sample2D,
|
|
Swizzle,
|
|
Add,
|
|
Sub,
|
|
Mul,
|
|
Div,
|
|
};
|
|
|
|
struct Instruction final {
|
|
union Arguments {
|
|
struct {
|
|
u16 target_register;
|
|
u8 input_index;
|
|
} input;
|
|
struct {
|
|
u16 source_register;
|
|
u8 output_index;
|
|
} output;
|
|
struct {
|
|
u16 target_register;
|
|
u16 coordinates_register;
|
|
u8 sampler_index;
|
|
} sample;
|
|
struct {
|
|
u16 target_register;
|
|
u16 source_register;
|
|
u8 pattern;
|
|
} swizzle;
|
|
struct {
|
|
u16 target_register;
|
|
u16 source_register1;
|
|
u16 source_register2;
|
|
} binop;
|
|
} arguments;
|
|
Opcode operation;
|
|
};
|
|
|
|
}
|