From 20004b7ee09db7de5a58ef50735b64309709a4c7 Mon Sep 17 00:00:00 2001 From: Denis Krjuchkov Date: Fri, 8 Oct 2010 23:55:14 +0600 Subject: win32_output: renamed win32 output plugin to winmm Win32 has many audio APIs. New name is slightly more correct. --- src/output/win32_output_plugin.c | 296 --------------------------------------- 1 file changed, 296 deletions(-) delete mode 100644 src/output/win32_output_plugin.c (limited to 'src/output/win32_output_plugin.c') diff --git a/src/output/win32_output_plugin.c b/src/output/win32_output_plugin.c deleted file mode 100644 index 970c62d79..000000000 --- a/src/output/win32_output_plugin.c +++ /dev/null @@ -1,296 +0,0 @@ -/* - * Copyright (C) 2003-2010 The Music Player Daemon Project - * http://www.musicpd.org - * - * 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 2 of the License, or - * (at your option) 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, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "config.h" -#include "output_api.h" -#include "pcm_buffer.h" - -#include - -#undef G_LOG_DOMAIN -#define G_LOG_DOMAIN "win32_output" - -struct win32_buffer { - struct pcm_buffer buffer; - - WAVEHDR hdr; -}; - -struct win32_output { - HWAVEOUT handle; - - /** - * This event is triggered by Windows when a buffer is - * finished. - */ - HANDLE event; - - struct win32_buffer buffers[8]; - unsigned next_buffer; -}; - -/** - * The quark used for GError.domain. - */ -static inline GQuark -win32_output_quark(void) -{ - return g_quark_from_static_string("win32_output"); -} - -static bool -win32_output_test_default_device(void) -{ - /* we assume that Wave is always available */ - return true; -} - -static void * -win32_output_init(G_GNUC_UNUSED const struct audio_format *audio_format, - G_GNUC_UNUSED const struct config_param *param, - G_GNUC_UNUSED GError **error) -{ - struct win32_output *wo = g_new(struct win32_output, 1); - - return wo; -} - -static void -win32_output_finish(void *data) -{ - struct win32_output *wo = data; - - g_free(wo); -} - -static bool -win32_output_open(void *data, struct audio_format *audio_format, - GError **error_r) -{ - struct win32_output *wo = data; - - wo->event = CreateEvent(NULL, false, false, NULL); - if (wo->event == NULL) { - g_set_error(error_r, win32_output_quark(), 0, - "CreateEvent() failed"); - return false; - } - - switch (audio_format->format) { - case SAMPLE_FORMAT_S8: - case SAMPLE_FORMAT_S16: - break; - - case SAMPLE_FORMAT_S24: - case SAMPLE_FORMAT_S24_P32: - case SAMPLE_FORMAT_S32: - case SAMPLE_FORMAT_UNDEFINED: - /* we havn't tested formats other than S16 */ - audio_format->format = SAMPLE_FORMAT_S16; - break; - } - - if (audio_format->channels > 2) - /* same here: more than stereo was not tested */ - audio_format->channels = 2; - - WAVEFORMATEX format; - format.wFormatTag = WAVE_FORMAT_PCM; - format.nChannels = audio_format->channels; - format.nSamplesPerSec = audio_format->sample_rate; - format.nBlockAlign = audio_format_frame_size(audio_format); - format.nAvgBytesPerSec = format.nSamplesPerSec * format.nBlockAlign; - format.wBitsPerSample = audio_format_sample_size(audio_format) * 8; - format.cbSize = 0; - - MMRESULT result = waveOutOpen(&wo->handle, WAVE_MAPPER, &format, - (DWORD_PTR)wo->event, 0, CALLBACK_EVENT); - if (result != MMSYSERR_NOERROR) { - CloseHandle(wo->event); - g_set_error(error_r, win32_output_quark(), result, - "waveOutOpen() failed"); - return false; - } - - for (unsigned i = 0; i < G_N_ELEMENTS(wo->buffers); ++i) { - pcm_buffer_init(&wo->buffers[i].buffer); - memset(&wo->buffers[i].hdr, 0, sizeof(wo->buffers[i].hdr)); - } - - wo->next_buffer = 0; - - return true; -} - -static void -win32_output_close(void *data) -{ - struct win32_output *wo = data; - - for (unsigned i = 0; i < G_N_ELEMENTS(wo->buffers); ++i) - pcm_buffer_deinit(&wo->buffers[i].buffer); - - waveOutClose(wo->handle); - - CloseHandle(wo->event); -} - -/** - * Copy data into a buffer, and prepare the wave header. - */ -static bool -win32_set_buffer(struct win32_output *wo, struct win32_buffer *buffer, - const void *data, size_t size, - GError **error_r) -{ - void *dest = pcm_buffer_get(&buffer->buffer, size); - if (dest == NULL) { - g_set_error(error_r, win32_output_quark(), 0, - "Out of memory"); - return false; - } - - memcpy(dest, data, size); - - memset(&buffer->hdr, 0, sizeof(buffer->hdr)); - buffer->hdr.lpData = dest; - buffer->hdr.dwBufferLength = size; - - MMRESULT result = waveOutPrepareHeader(wo->handle, &buffer->hdr, - sizeof(buffer->hdr)); - if (result != MMSYSERR_NOERROR) { - g_set_error(error_r, win32_output_quark(), result, - "waveOutPrepareHeader() failed"); - return false; - } - - return true; -} - -/** - * Wait until the buffer is finished. - */ -static bool -win32_drain_buffer(struct win32_output *wo, struct win32_buffer *buffer, - GError **error_r) -{ - if ((buffer->hdr.dwFlags & WHDR_DONE) == WHDR_DONE) - /* already finished */ - return true; - - while (true) { - MMRESULT result = waveOutUnprepareHeader(wo->handle, - &buffer->hdr, - sizeof(buffer->hdr)); - if (result == MMSYSERR_NOERROR) - return true; - else if (result != WAVERR_STILLPLAYING) { - g_set_error(error_r, win32_output_quark(), result, - "waveOutUnprepareHeader() failed"); - return false; - } - - /* wait some more */ - WaitForSingleObject(wo->event, INFINITE); - } -} - -static size_t -win32_output_play(void *data, const void *chunk, size_t size, GError **error_r) -{ - struct win32_output *wo = data; - - /* get the next buffer from the ring and prepare it */ - struct win32_buffer *buffer = &wo->buffers[wo->next_buffer]; - if (!win32_drain_buffer(wo, buffer, error_r) || - !win32_set_buffer(wo, buffer, chunk, size, error_r)) - return 0; - - /* enqueue the buffer */ - MMRESULT result = waveOutWrite(wo->handle, &buffer->hdr, - sizeof(buffer->hdr)); - if (result != MMSYSERR_NOERROR) { - waveOutUnprepareHeader(wo->handle, &buffer->hdr, - sizeof(buffer->hdr)); - g_set_error(error_r, win32_output_quark(), result, - "waveOutWrite() failed"); - return 0; - } - - /* mark our buffer as "used" */ - wo->next_buffer = (wo->next_buffer + 1) % - G_N_ELEMENTS(wo->buffers); - - return size; -} - -static bool -win32_drain_all_buffers(struct win32_output *wo, GError **error_r) -{ - for (unsigned i = wo->next_buffer; i < G_N_ELEMENTS(wo->buffers); ++i) - if (!win32_drain_buffer(wo, &wo->buffers[i], error_r)) - return false; - - for (unsigned i = 0; i < wo->next_buffer; ++i) - if (!win32_drain_buffer(wo, &wo->buffers[i], error_r)) - return false; - - return true; -} - -static void -win32_stop(struct win32_output *wo) -{ - waveOutReset(wo->handle); - - for (unsigned i = 0; i < G_N_ELEMENTS(wo->buffers); ++i) { - struct win32_buffer *buffer = &wo->buffers[i]; - waveOutUnprepareHeader(wo->handle, &buffer->hdr, - sizeof(buffer->hdr)); - } -} - -static void -win32_output_drain(void *data) -{ - struct win32_output *wo = data; - - if (!win32_drain_all_buffers(wo, NULL)) - win32_stop(wo); -} - -static void -win32_output_cancel(void *data) -{ - struct win32_output *wo = data; - - win32_stop(wo); -} - -const struct audio_output_plugin win32_output_plugin = { - .name = "win32", - .test_default_device = win32_output_test_default_device, - .init = win32_output_init, - .finish = win32_output_finish, - .open = win32_output_open, - .close = win32_output_close, - .play = win32_output_play, - .drain = win32_output_drain, - .cancel = win32_output_cancel, -}; 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