clobber
56420c3a12
Includes:
- Partial Expansion Module (XM) support
- XRAM
- XPokey (limited to single Pokey)
- Added support for cartridges with sizes greater than 144k
- Additional bank switching modes and cartridge types
- Multiple bank switching fixes
- Reworked cartridge header detection
- Now properly detects bank switching, RAM, etc.
- Detects Expansion Module (XM)
- Detects High score cartridge
- Detects Pokey at $0450
- Cartridge database
- Added several new cartridge properties
- Pokey at $0450
- Default difficulty switch settings
- Expansion Module (XM) enabled/disabled
- High score cartridge enabled/disabled
- Database content
- Fixed incorrect controller settings for Sirius, Crossbow,
and Alien Brigade
- Added many homebrew cartridges
- Fixed issue occurring when Kangaroo and Holey were enabled (caused
background to be displayed, resulting in large black squares)
Missing:
- High Score Cartridge support
88 lines
3.0 KiB
C++
Executable File
88 lines
3.0 KiB
C++
Executable File
// ----------------------------------------------------------------------------
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// ___ ___ ___ ___ ___ ____ ___ _ _ __ ___
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// /__/ /__/ / / /__ /__/ /__ / /_ / |/ / / / _
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// / / \ /__/ ___/ ___/ ___/ / /__ / / ___/ /__/
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//
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// ----------------------------------------------------------------------------
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// Copyright 2005 Greg Stanton
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// Copyright 2020 Rupert Carmichael
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//
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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 2 of the License, or
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// (at your option) any later version.
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//
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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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//
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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, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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// ----------------------------------------------------------------------------
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// Sound.c
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// ----------------------------------------------------------------------------
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#include <stdint.h>
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#include <stdbool.h>
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#include <string.h>
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#include "Sound.h"
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#define MAX_BUFFER_SIZE 8192
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static uint32_t nSamplesPerSec = 48000;
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static void sound_Resample(const uint8_t *source, uint8_t *target, int length) {
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int measurement = nSamplesPerSec;
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int sourceIndex = 0;
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int targetIndex = 0;
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int max = ((prosystem_frequency * prosystem_scanlines) << 1);
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while (targetIndex < length) {
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if (measurement >= max) {
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target[targetIndex++] = source[sourceIndex];
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measurement -= max;
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}
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else {
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sourceIndex++;
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measurement += nSamplesPerSec;
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}
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}
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}
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uint32_t sound_Store(uint8_t *out_buffer) {
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memset(out_buffer, 0, MAX_BUFFER_SIZE);
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uint32_t length = nSamplesPerSec / prosystem_frequency;
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sound_Resample(tia_buffer, out_buffer, length);
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tia_Clear();
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// Ballblazer, Commando, various homebrew and hacks
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if(cartridge_pokey || xm_pokey_enabled) {
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uint8_t pokeySample[MAX_BUFFER_SIZE];
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memset(pokeySample, 0, MAX_BUFFER_SIZE);
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sound_Resample(pokey_buffer, pokeySample, length);
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for(uint32_t index = 0; index < length; index++) {
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uint32_t sound = out_buffer[index] + pokeySample[index];
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out_buffer[index] = sound >> 1;
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}
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}
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else {
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for(uint32_t index = 0; index < length; index++) {
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out_buffer[index] = out_buffer[index] * 0.75; //>> 1;
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}
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}
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pokey_Clear();
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return length;
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}
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void sound_SetSampleRate(uint32_t rate) {
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nSamplesPerSec = rate;
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}
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uint32_t sound_GetSampleRate(void) {
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return nSamplesPerSec;
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}
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