mirror of
https://github.com/dingusdev/dingusppc.git
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35c86ad6bf
Result of running IWYU (https://include-what-you-use.org/) and applying most of the suggestions about unncessary includes and forward declarations. Was motivated by observing that <thread> was being included in ppcopcodes.cpp even though it was unused (found while researching the use of threads), but seems generally good to help with build times and correctness.
104 lines
3.4 KiB
C++
104 lines
3.4 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-23 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** Burgundy sound codec emulation. */
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#include <core/timermanager.h>
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#include <devices/common/hwcomponent.h>
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#include <devices/deviceregistry.h>
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#include <devices/sound/burgundy.h>
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#include <endianswap.h>
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#include <loguru.hpp>
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BurgundyCodec::BurgundyCodec(std::string name) : MacioSndCodec(name)
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{
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supports_types(HWCompType::SND_CODEC);
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static int burgundy_sample_rates[1] = { 44100 };
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// Burgundy seems to supports only one sample rate
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this->sr_table = burgundy_sample_rates;
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this->max_sr_id = 1;
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this->set_sample_rate(0); // set default sample rate
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}
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uint32_t BurgundyCodec::snd_ctrl_read(uint32_t offset, int size) {
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uint32_t result = 0;
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switch (offset) {
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case AWAC_CODEC_CTRL_REG:
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result = this->last_ctrl_data;
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break;
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case AWAC_CODEC_STATUS_REG:
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result = (this->first_valid << 23) | BURGUNDY_READY |
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(this->byte_counter << 14) | (this->read_pos << 12) |
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(this->data_byte << 4);
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break;
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default:
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LOG_F(ERROR, "%s: read from unsupported register 0x%X", this->name.c_str(),
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offset);
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}
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return BYTESWAP_32(result);
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}
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void BurgundyCodec::snd_ctrl_write(uint32_t offset, uint32_t value, int size) {
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uint8_t reg_addr, cur_byte, last_byte;
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value = BYTESWAP_32(value);
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switch (offset) {
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case AWAC_CODEC_CTRL_REG:
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this->last_ctrl_data = value;
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reg_addr = (value >> 12) & 0xFF;
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cur_byte = (value >> 8) & 3;
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last_byte = (value >> 10) & 3;
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if (value & BURGUNDY_REG_WR) {
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uint32_t mask = 0xFFU << (cur_byte * 8);
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this->reg_array[reg_addr] = (this->reg_array[reg_addr] & ~mask) |
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((value & 0xFFU) << (cur_byte * 8));
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} else {
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this->reg_addr = reg_addr;
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this->read_pos = cur_byte;
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this->data_byte = (this->reg_array[reg_addr] >> (cur_byte * 8)) & 0xFFU;
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this->first_valid = 1;
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TimerManager::get_instance()->add_oneshot_timer(
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USECS_TO_NSECS(10), // not sure if this is the correct delay
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[this]() {
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this->first_valid = 0;
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this->byte_counter = (this->byte_counter + 1) & 3;
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});
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}
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break;
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default:
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LOG_F(ERROR, "%s: write to unsupported register 0x%X", this->name.c_str(),
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offset);
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}
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}
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static const DeviceDescription Burgundy_Descriptor = {
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BurgundyCodec::create, {}, {}
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};
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REGISTER_DEVICE(BurgundySnd, Burgundy_Descriptor);
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