prepare to add a reference player

src/engine/filePlayer.cpp

@@ -0,0 +1,87 @@
+/**
+ * Furnace Tracker - multi-system chiptune tracker
+ * Copyright (C) 2021-2025 tildearrow and contributors
+ *
+ * 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 "filePlayer.h"
+
+#define DIV_FPCACHE_BLOCK_SHIFT 16
+#define DIV_FPCACHE_BLOCK_SIZE (1U<<DIV_FPCACHE_BLOCK_SHIFT)
+#define DIV_FPCACHE_BLOCK_MASK (DIV_FPCACHE_BLOCK_SIZE-1)
+
+void DivFilePlayer::fillBlocksNear(size_t pos) {
+}
+
+void DivFilePlayer::mix(float** buf, int chans, unsigned int size) {
+
+}
+
+size_t DivFilePlayer::getPos() {
+  return playPos;
+}
+
+size_t DivFilePlayer::setPos(size_t newPos, unsigned int offset=0) {
+
+}
+
+void DivFilePlayer::play(unsigned int offset=0) {
+  playing=true;
+}
+
+void DivFilePlayer::stop(unsigned int offset=0) {
+  playing=false;
+}
+
+bool DivFilePlayer::closeFile() {
+  if (sf==NULL) return false;
+  sf_close(sf);
+  sf=NULL;
+}
+
+bool DivFilePlayer::loadFile(const char* path) {
+}
+
+String DivFilePlayer::getLastError() {
+  return lastError;
+}
+
+void DivFilePlayer::setOutputRate(int rate) {
+
+}
+
+float DivFilePlayer::getVolume() {
+
+}
+
+void DivFilePlayer::setVolume(float vol) {
+
+}
+
+DivFilePlayer::DivFilePlayer():
+  blocks(NULL),
+  sf(NULL),
+  playPos(0),
+  outRate(44100),
+  rateAccum(0),
+  volume(1.0f),
+  playing(false),
+  fileError(false) {
+}
+
+DivFilePlayer::~DivFilePlayer() {
+  closeFile();
+}