-
-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
33 changed files
with
10,641 additions
and
474 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,7 @@ | ||
| include ../shared/desktop/Makefile.sources | ||
| include ../shared/desktop/makefiles/Makefile.sources | ||
|
|
||
| SOURCES_CXX += $(DESKTOP_SRC_DIR)/nfd/nfd_gtk.cpp | ||
| CPPFLAGS += `pkg-config --cflags gtk+-3.0` | ||
| LDFLAGS += `pkg-config --libs gtk+-3.0` | ||
|
|
||
| include ../shared/desktop/Makefile.common | ||
| include ../shared/desktop/makefiles/Makefile.common |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,7 +1,7 @@ | ||
| include ../shared/desktop/Makefile.sources | ||
| include ../shared/desktop/makefiles/Makefile.sources | ||
|
|
||
| SOURCES_CXX += $(DESKTOP_SRC_DIR)/nfd/nfd_gtk.cpp | ||
| CPPFLAGS += `pkg-config --cflags gtk+-3.0` | ||
| LDFLAGS += `pkg-config --libs gtk+-3.0` | ||
|
|
||
| include ../shared/desktop/Makefile.common | ||
| include ../shared/desktop/makefiles/Makefile.common |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,191 @@ | ||
| /* | ||
| * Geargrafx - PC Engine / TurboGrafx Emulator | ||
| * Copyright (C) 2024 Ignacio Sanchez | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * any later version. | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see http://www.gnu.org/licenses/ | ||
| * | ||
| */ | ||
|
|
||
| #include "sound_queue.h" | ||
| #include <string> | ||
| #include <assert.h> | ||
| #include "../../../src/geargrafx.h" | ||
|
|
||
| static void sdl_error(const char* str) | ||
| { | ||
| const char* sdl_str = SDL_GetError(); | ||
| if (sdl_str && *sdl_str) | ||
| str = sdl_str; | ||
|
|
||
| Log("Sound Queue: %s", str); | ||
| } | ||
|
|
||
| SoundQueue::SoundQueue() | ||
| { | ||
| m_buffers = NULL; | ||
| m_free_sem = NULL; | ||
| m_sound_open = false; | ||
| m_sync_output = true; | ||
|
|
||
| std::string platform = SDL_GetPlatform(); | ||
| if ((platform == "Linux") && (!IsRunningInWSL())) | ||
| { | ||
| Debug("SoundQueue: Linux detected"); | ||
| SDL_InitSubSystem(SDL_INIT_AUDIO); | ||
| SDL_AudioInit("alsa"); | ||
| } | ||
| else | ||
| { | ||
| SDL_Init(SDL_INIT_AUDIO); | ||
| } | ||
|
|
||
| Debug("SoundQueue: Initialized"); | ||
|
|
||
| atexit(SDL_Quit); | ||
| } | ||
|
|
||
| SoundQueue::~SoundQueue() | ||
| { | ||
| Stop(); | ||
| } | ||
|
|
||
| bool SoundQueue::Start(int sample_rate, int channel_count, int buffer_size, int buffer_count) | ||
| { | ||
| m_write_buffer = 0; | ||
| m_write_position = 0; | ||
| m_read_buffer = 0; | ||
| m_buffer_size = buffer_size; | ||
| m_buffer_count = buffer_count; | ||
|
|
||
| m_buffers = new int16_t[m_buffer_size * m_buffer_count]; | ||
| m_currently_playing = m_buffers; | ||
|
|
||
| for (int i = 0; i < (m_buffer_size * m_buffer_count); i++) | ||
| m_buffers[i] = 0; | ||
|
|
||
| m_free_sem = SDL_CreateSemaphore(m_buffer_count - 1); | ||
| if (!m_free_sem) | ||
| { | ||
| sdl_error("Couldn't create semaphore"); | ||
| return false; | ||
| } | ||
|
|
||
| SDL_AudioSpec as; | ||
| as.freq = sample_rate; | ||
| as.format = AUDIO_S16SYS; | ||
| as.channels = channel_count; | ||
| as.silence = 0; | ||
| as.samples = m_buffer_size / channel_count; | ||
| as.size = 0; | ||
| as.callback = FillBufferCallback; | ||
| as.userdata = this; | ||
| if (SDL_OpenAudio(&as, NULL) < 0) | ||
| { | ||
| sdl_error("Couldn't open SDL audio"); | ||
| return false; | ||
| } | ||
| SDL_PauseAudio(false); | ||
| m_sound_open = true; | ||
|
|
||
| Debug("SoundQueue: Started with %d Hz, %d channels, %d buffer size, %d buffers", sample_rate, channel_count, m_buffer_size, m_buffer_count); | ||
|
|
||
| return true; | ||
| } | ||
|
|
||
| void SoundQueue::Stop() | ||
| { | ||
| if (m_sound_open) | ||
| { | ||
| m_sound_open = false; | ||
| SDL_PauseAudio(true); | ||
| SDL_CloseAudio(); | ||
| } | ||
|
|
||
| if (m_free_sem) | ||
| { | ||
| SDL_DestroySemaphore(m_free_sem); | ||
| m_free_sem = NULL; | ||
| } | ||
|
|
||
| delete [] m_buffers; | ||
| m_buffers = NULL; | ||
| } | ||
|
|
||
| int SoundQueue::GetSampleCount() | ||
| { | ||
| int buffer_free = SDL_SemValue(m_free_sem) * m_buffer_size + (m_buffer_size - m_write_position); | ||
| return m_buffer_size * m_buffer_count - buffer_free; | ||
| } | ||
|
|
||
| void SoundQueue::Write(int16_t* samples, int count, bool sync) | ||
| { | ||
| m_sync_output = sync; | ||
|
|
||
| while (count) | ||
| { | ||
| int n = m_buffer_size - m_write_position; | ||
| if (n > count) | ||
| n = count; | ||
|
|
||
| memcpy(Buffer(m_write_buffer) + m_write_position, samples, n * sizeof(int16_t)); | ||
| samples += n; | ||
| m_write_position += n; | ||
| count -= n; | ||
|
|
||
| if (m_write_position >= m_buffer_size) | ||
| { | ||
| m_write_position = 0; | ||
| m_write_buffer = (m_write_buffer + 1) % m_buffer_count; | ||
|
|
||
| if (m_sync_output) | ||
| SDL_SemWait(m_free_sem); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| void SoundQueue::FillBuffer(uint8_t* buffer, int count) | ||
| { | ||
| if ((SDL_SemValue(m_free_sem) < (unsigned int)m_buffer_count - 1) || !m_sync_output) | ||
| { | ||
| m_currently_playing = Buffer(m_read_buffer); | ||
| memcpy( buffer, Buffer(m_read_buffer), count); | ||
| m_read_buffer = (m_read_buffer + 1) % m_buffer_count; | ||
|
|
||
| if (m_sync_output) | ||
| SDL_SemPost(m_free_sem); | ||
| } | ||
| else | ||
| { | ||
| memset(buffer, 0, count); | ||
| } | ||
| } | ||
|
|
||
| void SoundQueue::FillBufferCallback(void* user_data, uint8_t* buffer, int count) | ||
| { | ||
| ((SoundQueue*) user_data)->FillBuffer(buffer, count); | ||
| } | ||
|
|
||
| bool SoundQueue::IsRunningInWSL() | ||
| { | ||
| FILE *file; | ||
|
|
||
| if ((file = fopen("/proc/sys/fs/binfmt_misc/WSLInterop", "r"))) | ||
| { | ||
| Debug("SoundQueue: Running in WSL"); | ||
| fclose(file); | ||
| return true; | ||
| } | ||
|
|
||
| return false; | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| /* | ||
| * Geargrafx - PC Engine / TurboGrafx Emulator | ||
| * Copyright (C) 2024 Ignacio Sanchez | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * any later version. | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see http://www.gnu.org/licenses/ | ||
| * | ||
| */ | ||
|
|
||
| #ifndef SOUND_QUEUE_H | ||
| #define SOUND_QUEUE_H | ||
|
|
||
| #include <SDL.h> | ||
| #include <stdint.h> | ||
| #include <assert.h> | ||
|
|
||
| class SoundQueue | ||
| { | ||
| public: | ||
| SoundQueue(); | ||
| ~SoundQueue(); | ||
| bool Start(int sample_rate, int channel_count, int buffer_size = 2048, int buffer_count = 3); | ||
| void Stop(); | ||
| void Write(int16_t* samples, int count, bool sync); | ||
| int GetSampleCount(); | ||
| int16_t* GetCurrentlyPlaying(); | ||
|
|
||
| private: | ||
| int16_t* volatile m_buffers; | ||
| SDL_sem* volatile m_free_sem; | ||
| int16_t* volatile m_currently_playing; | ||
| int volatile m_read_buffer; | ||
| int m_write_buffer; | ||
| int m_write_position; | ||
| bool m_sound_open; | ||
| bool m_sync_output; | ||
| int m_buffer_size; | ||
| int m_buffer_count; | ||
|
|
||
| private: | ||
| int16_t* Buffer(int index); | ||
| void FillBuffer(uint8_t* buffer, int count); | ||
| bool IsRunningInWSL(); | ||
| static void FillBufferCallback(void* user_data, uint8_t* buffer, int count); | ||
| }; | ||
|
|
||
| inline int16_t* SoundQueue::Buffer(int index) | ||
| { | ||
| assert(index < m_buffer_count); | ||
| return m_buffers + (index * m_buffer_size); | ||
| } | ||
|
|
||
| #endif /* SOUND_QUEUE_H */ |
Oops, something went wrong.