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/*
* 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;
};
}
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