不韋 呂
Output the audio signal with filtering by graphic equalizer in the *.wav file on the SD card using onboard CODEC. SD カードの *.wav ファイルのオーディオ信号をグラフィック･イコライザを通して，ボードに搭載されているCODEC で出力する．
Dependencies: F746_GUI F746_SAI_IO SD_PlayerSkeleton FrequencyResponseDrawer
Diff: mbed_src_STM32F7/common/CallChain.cpp
- Revision:
- 16:cbb726ac20d8
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed_src_STM32F7/common/CallChain.cpp Sun Oct 02 06:33:59 2016 +0000
@@ -0,0 +1,90 @@
+#include "CallChain.h"
+#include "cmsis.h"
+
+namespace mbed {
+
+CallChain::CallChain(int size) : _chain(), _size(size), _elements(0) {
+ _chain = new pFunctionPointer_t[size]();
+}
+
+CallChain::~CallChain() {
+ clear();
+ delete _chain;
+}
+
+pFunctionPointer_t CallChain::add(void (*function)(void)) {
+ return common_add(new FunctionPointer(function));
+}
+
+pFunctionPointer_t CallChain::add_front(void (*function)(void)) {
+ return common_add_front(new FunctionPointer(function));
+}
+
+int CallChain::size() const {
+ return _elements;
+}
+
+pFunctionPointer_t CallChain::get(int i) const {
+ if (i < 0 || i >= _elements)
+ return NULL;
+ return _chain[i];
+}
+
+int CallChain::find(pFunctionPointer_t f) const {
+ for (int i = 0; i < _elements; i++)
+ if (f == _chain[i])
+ return i;
+ return -1;
+}
+
+void CallChain::clear() {
+ for(int i = 0; i < _elements; i ++) {
+ delete _chain[i];
+ _chain[i] = NULL;
+ }
+ _elements = 0;
+}
+
+bool CallChain::remove(pFunctionPointer_t f) {
+ int i;
+
+ if ((i = find(f)) == -1)
+ return false;
+ if (i != _elements - 1)
+ memmove(_chain + i, _chain + i + 1, (_elements - i - 1) * sizeof(pFunctionPointer_t));
+ delete f;
+ _elements --;
+ return true;
+}
+
+void CallChain::call() {
+ for(int i = 0; i < _elements; i++)
+ _chain[i]->call();
+}
+
+void CallChain::_check_size() {
+ if (_elements < _size)
+ return;
+ _size = (_size < 4) ? 4 : _size + 4;
+ pFunctionPointer_t* new_chain = new pFunctionPointer_t[_size]();
+ memcpy(new_chain, _chain, _elements * sizeof(pFunctionPointer_t));
+ delete _chain;
+ _chain = new_chain;
+}
+
+pFunctionPointer_t CallChain::common_add(pFunctionPointer_t pf) {
+ _check_size();
+ _chain[_elements] = pf;
+ _elements ++;
+ return pf;
+}
+
+pFunctionPointer_t CallChain::common_add_front(pFunctionPointer_t pf) {
+ _check_size();
+ memmove(_chain + 1, _chain, _elements * sizeof(pFunctionPointer_t));
+ _chain[0] = pf;
+ _elements ++;
+ return pf;
+}
+
+} // namespace mbed