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-rw-r--r--editor/import/resource_importer_wav.cpp434
1 files changed, 197 insertions, 237 deletions
diff --git a/editor/import/resource_importer_wav.cpp b/editor/import/resource_importer_wav.cpp
index 684ef4dc5..c28c7dd42 100644
--- a/editor/import/resource_importer_wav.cpp
+++ b/editor/import/resource_importer_wav.cpp
@@ -28,21 +28,21 @@
/*************************************************************************/
#include "resource_importer_wav.h"
-#include "scene/resources/audio_stream_sample.h"
-#include "os/file_access.h"
#include "io/marshalls.h"
#include "io/resource_saver.h"
+#include "os/file_access.h"
+#include "scene/resources/audio_stream_sample.h"
String ResourceImporterWAV::get_importer_name() const {
return "wav";
}
-String ResourceImporterWAV::get_visible_name() const{
+String ResourceImporterWAV::get_visible_name() const {
return "Microsoft WAV";
}
-void ResourceImporterWAV::get_recognized_extensions(List<String> *p_extensions) const{
+void ResourceImporterWAV::get_recognized_extensions(List<String> *p_extensions) const {
p_extensions->push_back("wav");
}
@@ -50,12 +50,12 @@ String ResourceImporterWAV::get_save_extension() const {
return "smp";
}
-String ResourceImporterWAV::get_resource_type() const{
+String ResourceImporterWAV::get_resource_type() const {
return "AudioStreamSample";
}
-bool ResourceImporterWAV::get_option_visibility(const String& p_option,const Map<StringName,Variant>& p_options) const {
+bool ResourceImporterWAV::get_option_visibility(const String &p_option, const Map<StringName, Variant> &p_options) const {
return true;
}
@@ -68,84 +68,78 @@ String ResourceImporterWAV::get_preset_name(int p_idx) const {
return String();
}
+void ResourceImporterWAV::get_import_options(List<ImportOption> *r_options, int p_preset) const {
-void ResourceImporterWAV::get_import_options(List<ImportOption> *r_options,int p_preset) const {
-
- r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL,"force/8_bit"),false));
- r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL,"force/mono"),false));
- r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL,"force/max_rate"),false));
- r_options->push_back(ImportOption(PropertyInfo(Variant::REAL,"force/max_rate_hz",PROPERTY_HINT_EXP_RANGE,"11025,192000,1"),44100));
- r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL,"edit/trim"),true));
- r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL,"edit/normalize"),true));
- r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL,"edit/loop"),false));
- r_options->push_back(ImportOption(PropertyInfo(Variant::INT,"compress/mode",PROPERTY_HINT_ENUM,"Disabled,RAM (Ima-ADPCM)"),0));
-
+ r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "force/8_bit"), false));
+ r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "force/mono"), false));
+ r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "force/max_rate"), false));
+ r_options->push_back(ImportOption(PropertyInfo(Variant::REAL, "force/max_rate_hz", PROPERTY_HINT_EXP_RANGE, "11025,192000,1"), 44100));
+ r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "edit/trim"), true));
+ r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "edit/normalize"), true));
+ r_options->push_back(ImportOption(PropertyInfo(Variant::BOOL, "edit/loop"), false));
+ r_options->push_back(ImportOption(PropertyInfo(Variant::INT, "compress/mode", PROPERTY_HINT_ENUM, "Disabled,RAM (Ima-ADPCM)"), 0));
}
-
-Error ResourceImporterWAV::import(const String& p_source_file, const String& p_save_path, const Map<StringName,Variant>& p_options, List<String>* r_platform_variants, List<String> *r_gen_files) {
+Error ResourceImporterWAV::import(const String &p_source_file, const String &p_save_path, const Map<StringName, Variant> &p_options, List<String> *r_platform_variants, List<String> *r_gen_files) {
/* STEP 1, READ WAVE FILE */
Error err;
- FileAccess *file=FileAccess::open(p_source_file, FileAccess::READ,&err);
+ FileAccess *file = FileAccess::open(p_source_file, FileAccess::READ, &err);
- ERR_FAIL_COND_V( err!=OK, ERR_CANT_OPEN );
+ ERR_FAIL_COND_V(err != OK, ERR_CANT_OPEN);
/* CHECK RIFF */
char riff[5];
- riff[4]=0;
- file->get_buffer((uint8_t*)&riff,4); //RIFF
+ riff[4] = 0;
+ file->get_buffer((uint8_t *)&riff, 4); //RIFF
- if (riff[0]!='R' || riff[1]!='I' || riff[2]!='F' || riff[3]!='F') {
+ if (riff[0] != 'R' || riff[1] != 'I' || riff[2] != 'F' || riff[3] != 'F') {
file->close();
memdelete(file);
- ERR_FAIL_V( ERR_FILE_UNRECOGNIZED );
+ ERR_FAIL_V(ERR_FILE_UNRECOGNIZED);
}
-
/* GET FILESIZE */
- uint32_t filesize=file->get_32();
+ uint32_t filesize = file->get_32();
/* CHECK WAVE */
char wave[4];
- file->get_buffer((uint8_t*)&wave,4); //RIFF
-
- if (wave[0]!='W' || wave[1]!='A' || wave[2]!='V' || wave[3]!='E') {
+ file->get_buffer((uint8_t *)&wave, 4); //RIFF
+ if (wave[0] != 'W' || wave[1] != 'A' || wave[2] != 'V' || wave[3] != 'E') {
file->close();
memdelete(file);
ERR_EXPLAIN("Not a WAV file (no WAVE RIFF Header)")
- ERR_FAIL_V( ERR_FILE_UNRECOGNIZED );
+ ERR_FAIL_V(ERR_FILE_UNRECOGNIZED);
}
- int format_bits=0;
- int format_channels=0;
+ int format_bits = 0;
+ int format_channels = 0;
- AudioStreamSample::LoopMode loop=AudioStreamSample::LOOP_DISABLED;
- bool format_found=false;
- bool data_found=false;
- int format_freq=0;
- int loop_begin=0;
- int loop_end=0;
+ AudioStreamSample::LoopMode loop = AudioStreamSample::LOOP_DISABLED;
+ bool format_found = false;
+ bool data_found = false;
+ int format_freq = 0;
+ int loop_begin = 0;
+ int loop_end = 0;
int frames;
Vector<float> data;
while (!file->eof_reached()) {
-
/* chunk */
char chunkID[4];
- file->get_buffer((uint8_t*)&chunkID,4); //RIFF
+ file->get_buffer((uint8_t *)&chunkID, 4); //RIFF
/* chunk size */
- uint32_t chunksize=file->get_32();
- uint32_t file_pos=file->get_pos(); //save file pos, so we can skip to next chunk safely
+ uint32_t chunksize = file->get_32();
+ uint32_t file_pos = file->get_pos(); //save file pos, so we can skip to next chunk safely
if (file->eof_reached()) {
@@ -153,107 +147,96 @@ Error ResourceImporterWAV::import(const String& p_source_file, const String& p_s
break;
}
- if (chunkID[0]=='f' && chunkID[1]=='m' && chunkID[2]=='t' && chunkID[3]==' ' && !format_found) {
+ if (chunkID[0] == 'f' && chunkID[1] == 'm' && chunkID[2] == 't' && chunkID[3] == ' ' && !format_found) {
/* IS FORMAT CHUNK */
- uint16_t compression_code=file->get_16();
-
+ uint16_t compression_code = file->get_16();
- if (compression_code!=1) {
+ if (compression_code != 1) {
ERR_PRINT("Format not supported for WAVE file (not PCM). Save WAVE files as uncompressed PCM instead.");
break;
}
- format_channels=file->get_16();
- if (format_channels!=1 && format_channels !=2) {
+ format_channels = file->get_16();
+ if (format_channels != 1 && format_channels != 2) {
ERR_PRINT("Format not supported for WAVE file (not stereo or mono)");
break;
-
}
- format_freq=file->get_32(); //sampling rate
+ format_freq = file->get_32(); //sampling rate
file->get_32(); // average bits/second (unused)
file->get_16(); // block align (unused)
- format_bits=file->get_16(); // bits per sample
+ format_bits = file->get_16(); // bits per sample
- if (format_bits%8) {
+ if (format_bits % 8) {
ERR_PRINT("Strange number of bits in sample (not 8,16,24,32)");
break;
}
/* Dont need anything else, continue */
- format_found=true;
+ format_found = true;
}
-
- if (chunkID[0]=='d' && chunkID[1]=='a' && chunkID[2]=='t' && chunkID[3]=='a' && !data_found) {
+ if (chunkID[0] == 'd' && chunkID[1] == 'a' && chunkID[2] == 't' && chunkID[3] == 'a' && !data_found) {
/* IS FORMAT CHUNK */
- data_found=true;
+ data_found = true;
if (!format_found) {
ERR_PRINT("'data' chunk before 'format' chunk found.");
break;
-
}
- frames=chunksize;
+ frames = chunksize;
- frames/=format_channels;
- frames/=(format_bits>>3);
+ frames /= format_channels;
+ frames /= (format_bits >> 3);
/*print_line("chunksize: "+itos(chunksize));
print_line("channels: "+itos(format_channels));
print_line("bits: "+itos(format_bits));
*/
- int len=frames;
- if (format_channels==2)
- len*=2;
- if (format_bits>8)
- len*=2;
-
-
- data.resize(frames*format_channels);
-
- for (int i=0;i<frames;i++) {
+ int len = frames;
+ if (format_channels == 2)
+ len *= 2;
+ if (format_bits > 8)
+ len *= 2;
+ data.resize(frames * format_channels);
- for (int c=0;c<format_channels;c++) {
+ for (int i = 0; i < frames; i++) {
+ for (int c = 0; c < format_channels; c++) {
- if (format_bits==8) {
+ if (format_bits == 8) {
// 8 bit samples are UNSIGNED
uint8_t s = file->get_8();
- s-=128;
- int8_t *sp=(int8_t*)&s;
+ s -= 128;
+ int8_t *sp = (int8_t *)&s;
- data[i*format_channels+c]=float(*sp)/128.0;
+ data[i * format_channels + c] = float(*sp) / 128.0;
} else {
//16+ bits samples are SIGNED
// if sample is > 16 bits, just read extra bytes
- uint32_t s=0;
- for (int b=0;b<(format_bits>>3);b++) {
+ uint32_t s = 0;
+ for (int b = 0; b < (format_bits >> 3); b++) {
- s|=((uint32_t)file->get_8())<<(b*8);
+ s |= ((uint32_t)file->get_8()) << (b * 8);
}
- s<<=(32-format_bits);
- int32_t ss=s;
+ s <<= (32 - format_bits);
+ int32_t ss = s;
-
- data[i*format_channels+c]=(ss>>16)/32768.0;
+ data[i * format_channels + c] = (ss >> 16) / 32768.0;
}
}
-
}
-
-
if (file->eof_reached()) {
file->close();
memdelete(file);
@@ -262,18 +245,17 @@ Error ResourceImporterWAV::import(const String& p_source_file, const String& p_s
}
}
- if (chunkID[0]=='s' && chunkID[1]=='m' && chunkID[2]=='p' && chunkID[3]=='l') {
+ if (chunkID[0] == 's' && chunkID[1] == 'm' && chunkID[2] == 'p' && chunkID[3] == 'l') {
//loop point info!
- for(int i=0;i<10;i++)
+ for (int i = 0; i < 10; i++)
file->get_32(); // i wish to know why should i do this... no doc!
- loop=file->get_32()?AudioStreamSample::LOOP_PING_PONG:AudioStreamSample::LOOP_FORWARD;
- loop_begin=file->get_32();
- loop_end=file->get_32();
-
+ loop = file->get_32() ? AudioStreamSample::LOOP_PING_PONG : AudioStreamSample::LOOP_FORWARD;
+ loop_begin = file->get_32();
+ loop_end = file->get_32();
}
- file->seek( file_pos+chunksize );
+ file->seek(file_pos + chunksize);
}
file->close();
@@ -281,19 +263,17 @@ Error ResourceImporterWAV::import(const String& p_source_file, const String& p_s
// STEP 2, APPLY CONVERSIONS
-
- bool is16=format_bits!=8;
- int rate=format_freq;
+ bool is16 = format_bits != 8;
+ int rate = format_freq;
print_line("Input Sample: ");
- print_line("\tframes: "+itos(frames));
- print_line("\tformat_channels: "+itos(format_channels));
- print_line("\t16bits: "+itos(is16));
- print_line("\trate: "+itos(rate));
- print_line("\tloop: "+itos(loop));
- print_line("\tloop begin: "+itos(loop_begin));
- print_line("\tloop end: "+itos(loop_end));
-
+ print_line("\tframes: " + itos(frames));
+ print_line("\tformat_channels: " + itos(format_channels));
+ print_line("\t16bits: " + itos(is16));
+ print_line("\trate: " + itos(rate));
+ print_line("\tloop: " + itos(loop));
+ print_line("\tloop begin: " + itos(loop_begin));
+ print_line("\tloop end: " + itos(loop_end));
//apply frequency limit
@@ -303,64 +283,62 @@ Error ResourceImporterWAV::import(const String& p_source_file, const String& p_s
//resampleeee!!!
int new_data_frames = frames * limit_rate_hz / rate;
Vector<float> new_data;
- new_data.resize( new_data_frames * format_channels );
- for(int c=0;c<format_channels;c++) {
+ new_data.resize(new_data_frames * format_channels);
+ for (int c = 0; c < format_channels; c++) {
- for(int i=0;i<new_data_frames;i++) {
+ for (int i = 0; i < new_data_frames; i++) {
//simple cubic interpolation should be enough.
float pos = float(i) * frames / new_data_frames;
- float mu = pos-Math::floor(pos);
+ float mu = pos - Math::floor(pos);
int ipos = int(Math::floor(pos));
- float y0=data[MAX(0,ipos-1)*format_channels+c];
- float y1=data[ipos*format_channels+c];
- float y2=data[MIN(frames-1,ipos+1)*format_channels+c];
- float y3=data[MIN(frames-1,ipos+2)*format_channels+c];
+ float y0 = data[MAX(0, ipos - 1) * format_channels + c];
+ float y1 = data[ipos * format_channels + c];
+ float y2 = data[MIN(frames - 1, ipos + 1) * format_channels + c];
+ float y3 = data[MIN(frames - 1, ipos + 2) * format_channels + c];
- float mu2 = mu*mu;
+ float mu2 = mu * mu;
float a0 = y3 - y2 - y0 + y1;
float a1 = y0 - y1 - a0;
float a2 = y2 - y0;
float a3 = y1;
- float res=(a0*mu*mu2+a1*mu2+a2*mu+a3);
+ float res = (a0 * mu * mu2 + a1 * mu2 + a2 * mu + a3);
- new_data[i*format_channels+c]=res;
+ new_data[i * format_channels + c] = res;
}
}
if (loop) {
- loop_begin=loop_begin*new_data_frames/frames;
- loop_end=loop_end*new_data_frames/frames;
+ loop_begin = loop_begin * new_data_frames / frames;
+ loop_end = loop_end * new_data_frames / frames;
}
- data=new_data;
- rate=limit_rate_hz;
- frames=new_data_frames;
+ data = new_data;
+ rate = limit_rate_hz;
+ frames = new_data_frames;
}
-
bool normalize = p_options["edit/normalize"];
if (normalize) {
- float max=0;
- for(int i=0;i<data.size();i++) {
+ float max = 0;
+ for (int i = 0; i < data.size(); i++) {
float amp = Math::abs(data[i]);
- if (amp>max)
- max=amp;
+ if (amp > max)
+ max = amp;
}
- if (max>0) {
+ if (max > 0) {
- float mult=1.0/max;
- for(int i=0;i<data.size();i++) {
+ float mult = 1.0 / max;
+ for (int i = 0; i < data.size(); i++) {
- data[i]*=mult;
+ data[i] *= mult;
}
-
}
}
@@ -368,111 +346,108 @@ Error ResourceImporterWAV::import(const String& p_source_file, const String& p_s
if (trim && !loop) {
- int first=0;
- int last=(frames*format_channels)-1;
- bool found=false;
+ int first = 0;
+ int last = (frames * format_channels) - 1;
+ bool found = false;
float limit = Math::db2linear((float)-30);
- for(int i=0;i<data.size();i++) {
+ for (int i = 0; i < data.size(); i++) {
float amp = Math::abs(data[i]);
if (!found && amp > limit) {
- first=i;
- found=true;
+ first = i;
+ found = true;
}
if (found && amp > limit) {
- last=i;
+ last = i;
}
}
- first/=format_channels;
- last/=format_channels;
+ first /= format_channels;
+ last /= format_channels;
- if (first<last) {
+ if (first < last) {
Vector<float> new_data;
- new_data.resize((last-first+1)*format_channels);
- for(int i=first*format_channels;i<=last*format_channels;i++) {
- new_data[i-first*format_channels]=data[i];
+ new_data.resize((last - first + 1) * format_channels);
+ for (int i = first * format_channels; i <= last * format_channels; i++) {
+ new_data[i - first * format_channels] = data[i];
}
- data=new_data;
- frames=data.size()/format_channels;
+ data = new_data;
+ frames = data.size() / format_channels;
}
-
}
bool make_loop = p_options["edit/loop"];
if (make_loop && !loop) {
- loop=AudioStreamSample::LOOP_FORWARD;
- loop_begin=0;
- loop_end=frames;
+ loop = AudioStreamSample::LOOP_FORWARD;
+ loop_begin = 0;
+ loop_end = frames;
}
int compression = p_options["compress/mode"];
bool force_mono = p_options["force/mono"];
-
- if (force_mono && format_channels==2) {
+ if (force_mono && format_channels == 2) {
Vector<float> new_data;
- new_data.resize(data.size()/2);
- for(int i=0;i<frames;i++) {
- new_data[i]=(data[i*2+0]+data[i*2+1])/2.0;
+ new_data.resize(data.size() / 2);
+ for (int i = 0; i < frames; i++) {
+ new_data[i] = (data[i * 2 + 0] + data[i * 2 + 1]) / 2.0;
}
- data=new_data;
- format_channels=1;
+ data = new_data;
+ format_channels = 1;
}
bool force_8_bit = p_options["force/8_bit"];
if (force_8_bit) {
- is16=false;
+ is16 = false;
}
-
PoolVector<uint8_t> dst_data;
AudioStreamSample::Format dst_format;
- if ( compression == 1) {
+ if (compression == 1) {
- dst_format=AudioStreamSample::FORMAT_IMA_ADPCM;
- if (format_channels==1) {
- _compress_ima_adpcm(data,dst_data);
+ dst_format = AudioStreamSample::FORMAT_IMA_ADPCM;
+ if (format_channels == 1) {
+ _compress_ima_adpcm(data, dst_data);
} else {
//byte interleave
Vector<float> left;
Vector<float> right;
- int tframes = data.size()/2;
+ int tframes = data.size() / 2;
left.resize(tframes);
right.resize(tframes);
- for(int i=0;i<tframes;i++) {
- left[i]=data[i*2+0];
- right[i]=data[i*2+1];
+ for (int i = 0; i < tframes; i++) {
+ left[i] = data[i * 2 + 0];
+ right[i] = data[i * 2 + 1];
}
PoolVector<uint8_t> bleft;
PoolVector<uint8_t> bright;
- _compress_ima_adpcm(left,bleft);
- _compress_ima_adpcm(right,bright);
+ _compress_ima_adpcm(left, bleft);
+ _compress_ima_adpcm(right, bright);
int dl = bleft.size();
- dst_data.resize( dl *2 );
+ dst_data.resize(dl * 2);
- PoolVector<uint8_t>::Write w=dst_data.write();
- PoolVector<uint8_t>::Read rl=bleft.read();
- PoolVector<uint8_t>::Read rr=bright.read();
+ PoolVector<uint8_t>::Write w = dst_data.write();
+ PoolVector<uint8_t>::Read rl = bleft.read();
+ PoolVector<uint8_t>::Read rr = bright.read();
- for(int i=0;i<dl;i++) {
- w[i*2+0]=rl[i];
- w[i*2+1]=rr[i];
+ for (int i = 0; i < dl; i++) {
+ w[i * 2 + 0] = rl[i];
+ w[i * 2 + 1] = rr[i];
}
}
@@ -480,26 +455,25 @@ Error ResourceImporterWAV::import(const String& p_source_file, const String& p_s
} else {
- dst_format=is16?AudioStreamSample::FORMAT_16_BITS:AudioStreamSample::FORMAT_8_BITS;
- dst_data.resize( data.size() * (is16?2:1));
+ dst_format = is16 ? AudioStreamSample::FORMAT_16_BITS : AudioStreamSample::FORMAT_8_BITS;
+ dst_data.resize(data.size() * (is16 ? 2 : 1));
{
PoolVector<uint8_t>::Write w = dst_data.write();
- int ds=data.size();
- for(int i=0;i<ds;i++) {
+ int ds = data.size();
+ for (int i = 0; i < ds; i++) {
if (is16) {
- int16_t v = CLAMP(data[i]*32768,-32768,32767);
- encode_uint16(v,&w[i*2]);
+ int16_t v = CLAMP(data[i] * 32768, -32768, 32767);
+ encode_uint16(v, &w[i * 2]);
} else {
- int8_t v = CLAMP(data[i]*128,-128,127);
- w[i]=v;
+ int8_t v = CLAMP(data[i] * 128, -128, 127);
+ w[i] = v;
}
}
}
}
-
Ref<AudioStreamSample> sample;
sample.instance();
sample->set_data(dst_data);
@@ -508,17 +482,14 @@ Error ResourceImporterWAV::import(const String& p_source_file, const String& p_s
sample->set_loop_mode(loop);
sample->set_loop_begin(loop_begin);
sample->set_loop_end(loop_end);
- sample->set_stereo(format_channels==2);
-
- ResourceSaver::save(p_save_path+".smp",sample);
+ sample->set_stereo(format_channels == 2);
+ ResourceSaver::save(p_save_path + ".smp", sample);
return OK;
-
}
-void ResourceImporterWAV::_compress_ima_adpcm(const Vector<float>& p_data,PoolVector<uint8_t>& dst_data) {
-
+void ResourceImporterWAV::_compress_ima_adpcm(const Vector<float> &p_data, PoolVector<uint8_t> &dst_data) {
/*p_sample_data->data = (void*)malloc(len);
xm_s8 *dataptr=(xm_s8*)p_sample_data->data;*/
@@ -540,41 +511,37 @@ void ResourceImporterWAV::_compress_ima_adpcm(const Vector<float>& p_data,PoolVe
-1, -1, -1, -1, 2, 4, 6, 8
};
-
int datalen = p_data.size();
- int datamax=datalen;
- if (datalen&1)
+ int datamax = datalen;
+ if (datalen & 1)
datalen++;
- dst_data.resize(datalen/2+4);
+ dst_data.resize(datalen / 2 + 4);
PoolVector<uint8_t>::Write w = dst_data.write();
-
- int i,step_idx=0,prev=0;
+ int i, step_idx = 0, prev = 0;
uint8_t *out = w.ptr();
//int16_t xm_prev=0;
- const float *in=p_data.ptr();
-
+ const float *in = p_data.ptr();
/* initial value is zero */
- *(out++) =0;
- *(out++) =0;
+ *(out++) = 0;
+ *(out++) = 0;
/* Table index initial value */
- *(out++) =0;
+ *(out++) = 0;
/* unused */
- *(out++) =0;
+ *(out++) = 0;
- for (i=0;i<datalen;i++) {
- int step,diff,vpdiff,mask;
+ for (i = 0; i < datalen; i++) {
+ int step, diff, vpdiff, mask;
uint8_t nibble;
int16_t xm_sample;
- if (i>=datamax)
- xm_sample=0;
+ if (i >= datamax)
+ xm_sample = 0;
else {
-
- xm_sample=CLAMP(in[i]*32767.0,-32768,32767);
+ xm_sample = CLAMP(in[i] * 32767.0, -32768, 32767);
/*
if (xm_sample==32767 || xm_sample==-32768)
printf("clippy!\n",xm_sample);
@@ -584,16 +551,16 @@ void ResourceImporterWAV::_compress_ima_adpcm(const Vector<float>& p_data,PoolVe
//xm_sample=xm_sample+xm_prev;
//xm_prev=xm_sample;
- diff = (int)xm_sample - prev ;
+ diff = (int)xm_sample - prev;
- nibble=0 ;
- step = _ima_adpcm_step_table[ step_idx ];
- vpdiff = step >> 3 ;
+ nibble = 0;
+ step = _ima_adpcm_step_table[step_idx];
+ vpdiff = step >> 3;
if (diff < 0) {
- nibble=8;
- diff=-diff ;
+ nibble = 8;
+ diff = -diff;
}
- mask = 4 ;
+ mask = 4;
while (mask) {
if (diff >= step) {
@@ -603,45 +570,38 @@ void ResourceImporterWAV::_compress_ima_adpcm(const Vector<float>& p_data,PoolVe
vpdiff += step;
}
- step >>= 1 ;
- mask >>= 1 ;
+ step >>= 1;
+ mask >>= 1;
};
- if (nibble&8)
- prev-=vpdiff ;
+ if (nibble & 8)
+ prev -= vpdiff;
else
- prev+=vpdiff ;
+ prev += vpdiff;
if (prev > 32767) {
//printf("%i,xms %i, prev %i,diff %i, vpdiff %i, clip up %i\n",i,xm_sample,prev,diff,vpdiff,prev);
- prev=32767;
+ prev = 32767;
} else if (prev < -32768) {
//printf("%i,xms %i, prev %i,diff %i, vpdiff %i, clip down %i\n",i,xm_sample,prev,diff,vpdiff,prev);
- prev = -32768 ;
+ prev = -32768;
}
step_idx += _ima_adpcm_index_table[nibble];
- if (step_idx< 0)
- step_idx= 0 ;
- else if (step_idx> 88)
- step_idx= 88 ;
-
+ if (step_idx < 0)
+ step_idx = 0;
+ else if (step_idx > 88)
+ step_idx = 88;
- if (i&1) {
- *out|=nibble<<4;
+ if (i & 1) {
+ *out |= nibble << 4;
out++;
} else {
- *out=nibble;
+ *out = nibble;
}
/*dataptr[i]=prev>>8;*/
}
-
-
-
-
}
-ResourceImporterWAV::ResourceImporterWAV()
-{
-
+ResourceImporterWAV::ResourceImporterWAV() {
}
generated by cgit v1.2.3-70-g09d2 (git 2.52.0) at 2025-12-28 05:36:44 +0000