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add option to swap nibbles on raw sample import

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issue #791
This commit is contained in:
tildearrow 2022-12-17 22:45:08 -05:00
parent 4affc48ebd
commit ceb27728d3
4 changed files with 17 additions and 4 deletions
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10
src/engine/engine.cpp
View file

@ -3293,7 +3293,7 @@ DivSample* DivEngine::sampleFromFile(const char* path) {
#endif
}
DivSample* DivEngine::sampleFromFileRaw(const char* path, DivSampleDepth depth, int channels, bool bigEndian, bool unsign) {
DivSample* DivEngine::sampleFromFileRaw(const char* path, DivSampleDepth depth, int channels, bool bigEndian, bool unsign, bool swapNibbles) {
if (song.sample.size()>=256) {
lastError="too many samples!";
return NULL;
@ -3459,6 +3459,14 @@ DivSample* DivEngine::sampleFromFileRaw(const char* path, DivSampleDepth depth,
}
delete[] buf;
// swap nibbles if needed
if (swapNibbles) {
unsigned char* b=(unsigned char*)sample->getCurBuf();
for (unsigned int i=0; i<sample->getCurBufLen(); i++) {
b[i]=(b[i]<<4)|(b[i]>>4);
}
}
BUSY_END;
return sample;
}

2
src/engine/engine.h
View file

@ -796,7 +796,7 @@ class DivEngine {
DivSample* sampleFromFile(const char* path);
// get raw sample
DivSample* sampleFromFileRaw(const char* path, DivSampleDepth depth, int channels, bool bigEndian, bool unsign);
DivSample* sampleFromFileRaw(const char* path, DivSampleDepth depth, int channels, bool bigEndian, bool unsign, bool swapNibbles);
// delete sample
void delSample(int index);

7
src/gui/gui.cpp
View file

@ -5019,8 +5019,12 @@ bool FurnaceGUI::loop() {
ImGui::Checkbox("Big endian",&pendingRawSampleBigEndian);
ImGui::EndDisabled();
ImGui::BeginDisabled(pendingRawSampleDepth==DIV_SAMPLE_DEPTH_16BIT);
ImGui::Checkbox("Swap nibbles",&pendingRawSampleSwapNibbles);
ImGui::EndDisabled();
if (ImGui::Button("OK")) {
DivSample* s=e->sampleFromFileRaw(pendingRawSample.c_str(),(DivSampleDepth)pendingRawSampleDepth,pendingRawSampleChannels,pendingRawSampleBigEndian,pendingRawSampleUnsigned);
DivSample* s=e->sampleFromFileRaw(pendingRawSample.c_str(),(DivSampleDepth)pendingRawSampleDepth,pendingRawSampleChannels,pendingRawSampleBigEndian,pendingRawSampleUnsigned,pendingRawSampleSwapNibbles);
if (s==NULL) {
showError(e->getLastError());
} else {
@ -5684,6 +5688,7 @@ FurnaceGUI::FurnaceGUI():
pendingRawSampleChannels(1),
pendingRawSampleUnsigned(false),
pendingRawSampleBigEndian(false),
pendingRawSampleSwapNibbles(false),
globalWinFlags(0),
curFileDialog(GUI_FILE_OPEN),
warnAction(GUI_WARN_OPEN),

2
src/gui/gui.h
View file

@ -1116,7 +1116,7 @@ class FurnaceGUI {
String pendingRawSample;
int pendingRawSampleDepth, pendingRawSampleChannels;
bool pendingRawSampleUnsigned, pendingRawSampleBigEndian;
bool pendingRawSampleUnsigned, pendingRawSampleBigEndian, pendingRawSampleSwapNibbles;
ImGuiWindowFlags globalWinFlags;