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#ifndef LOAD_WOPL_H
#define LOAD_WOPL_H
#include "../progs_cache.h"
#include "../midi_inst_list.h"
#include "common.h"
static uint8_t wopl_latest_version = 2;
static bool LoadWopl(const char *fn, unsigned bank, const char *prefix)
{
FILE *fp = std::fopen(fn, "rb");
if(!fp)
{
std::fprintf(stderr, "WOPL: CAN'T OPEN FILE %s\n", fn);
std::fflush(stderr);
return false;
}
std::fseek(fp, 0, SEEK_END);
std::vector<unsigned char> data(size_t(std::ftell(fp)));
std::rewind(fp);
if(std::fread(&data[0], 1, data.size(), fp) != data.size())
{
std::fclose(fp);
std::fprintf(stderr, "WOPL: CAN'T READ FILE %s\n", fn);
std::fflush(stderr);
return false;
}
std::fclose(fp);
if(data.size() < 19) // Smaller than header size
{
std::fprintf(stderr, "WOPL: Too small header %s\n", fn);
std::fflush(stderr);
return false;
}
uint16_t version = toUint16LE((const uint8_t *)data.data() + 11);
if(version > wopl_latest_version)
{
std::fprintf(stderr, "WOPL: Version %d is not supported (latest %d) %s\n", version, wopl_latest_version, fn);
std::fflush(stderr);
return false;
}
uint16_t mbanks_count = toUint16BE((const uint8_t *)data.data() + 0x0d);
uint16_t pbanks_count = toUint16BE((const uint8_t *)data.data() + 0x0f);
// Validate file format by size calculation
if(version == 1)
{
//Header size + melodic banks + percussion banks
if(data.size() < size_t(19 + (62 * 128 * mbanks_count) + (62 * 128 * pbanks_count)))
{
std::fprintf(stderr, "WOPL: Version 1 size calculation failed %s\n", fn);
std::fflush(stderr);
return false;
}
}
else if(version >= 2)
{
//Header size + melodic bank meta data + percussion bank meta data + melodic banks + percussion banks
if(data.size() < size_t(19 + (34 * mbanks_count) + (34 * pbanks_count) + (62 * 128 * mbanks_count) + (62 * 128 * pbanks_count)))
{
std::fprintf(stderr, "WOPL: Version %d size calculation failed %s\n", version, fn);
std::fflush(stderr);
return false;
}
}
uint32_t melodic_offset = 0;
uint32_t percussion_offset = 0;
if(version < 2)
melodic_offset = 0x13;
else
melodic_offset = 0x13 + 34 * mbanks_count + 34 * pbanks_count;
percussion_offset = melodic_offset + (62 * 128 * mbanks_count);
for(uint32_t mbank = 0; mbank < 1; mbank++) // only first melodic bank (Until multi-banks support will be implemented)
{
uint32_t bank_offset = melodic_offset + (mbank * 62 * 128);
for(unsigned i = 0; i < 128; i++)
{
uint32_t offset = bank_offset + uint32_t(i * 62);
std::string name;
insdata tmp[2];
name.resize(32);
std::memcpy(&name[0], data.data() + offset, 32);
name.resize(std::strlen(&name[0]));
tmp[0].data[0] = data[offset + 42 + 5];
tmp[0].data[1] = data[offset + 42 + 0];
tmp[0].data[2] = data[offset + 42 + 7];
tmp[0].data[3] = data[offset + 42 + 2];
tmp[0].data[4] = data[offset + 42 + 8];
tmp[0].data[5] = data[offset + 42 + 3];
tmp[0].data[6] = data[offset + 42 + 9];
tmp[0].data[7] = data[offset + 42 + 4];
tmp[0].data[8] = data[offset + 42 + 6];
tmp[0].data[9] = data[offset + 42 + 1];
tmp[0].data[10] = data[offset + 40];
tmp[1].data[0] = data[offset + 52 + 5];
tmp[1].data[1] = data[offset + 52 + 0];
tmp[1].data[2] = data[offset + 52 + 7];
tmp[1].data[3] = data[offset + 52 + 2];
tmp[1].data[4] = data[offset + 52 + 8];
tmp[1].data[5] = data[offset + 52 + 3];
tmp[1].data[6] = data[offset + 52 + 9];
tmp[1].data[7] = data[offset + 52 + 4];
tmp[1].data[8] = data[offset + 52 + 6];
tmp[1].data[9] = data[offset + 52 + 1];
tmp[1].data[10] = data[offset + 41];
tmp[0].finetune = int8_t(toSint16BE((const uint8_t *)data.data() + offset + 32));
tmp[1].finetune = int8_t(toSint16BE((const uint8_t *)data.data() + offset + 34));
uint8_t flags = data[offset + 39];
struct ins tmp2;
tmp2.notenum = 0;
tmp2.pseudo4op = (flags & 0x02) != 0;
tmp2.voice2_fine_tune = 0;
int8_t fine_tune = (int8_t)data[offset + 37];
if(fine_tune != 0)
{
if(fine_tune == 1)
tmp2.voice2_fine_tune = 0.000025;
else if(fine_tune == -1)
tmp2.voice2_fine_tune = -0.000025;
else
tmp2.voice2_fine_tune = ((fine_tune * 15.625) / 1000.0);
}
if(name.empty())
name = std::string(1, '\377') + MidiInsName[i];
else
name.insert(0, 1, '\377');
char name2[512];
sprintf(name2, "%sM%u", prefix, i);
if(!flags)
{
size_t resno = InsertIns(tmp[0], tmp[0], tmp2, name, name2);
SetBank(bank, i, resno);
}
else
{
size_t resno = InsertIns(tmp[0], tmp[1], tmp2, name, name2);
SetBank(bank, i, resno);
}
}
}
for(uint32_t pbank = 0; pbank < 1; pbank++) // only first percussion bank (Until multi-banks support will be implemented)
{
uint32_t bank_offset = percussion_offset + (pbank * 62 * 128);
for(uint32_t i = 0; i < 128; i++)
{
uint32_t offset = bank_offset + (i * 62);
std::string name;
insdata tmp[2];
name.resize(32);
std::memcpy(&name[0], data.data() + offset, 32);
name.resize(std::strlen(&name[0]));
tmp[0].data[0] = data[offset + 42 + 5];
tmp[0].data[1] = data[offset + 42 + 0];
tmp[0].data[2] = data[offset + 42 + 7];
tmp[0].data[3] = data[offset + 42 + 2];
tmp[0].data[4] = data[offset + 42 + 8];
tmp[0].data[5] = data[offset + 42 + 3];
tmp[0].data[6] = data[offset + 42 + 9];
tmp[0].data[7] = data[offset + 42 + 4];
tmp[0].data[8] = data[offset + 42 + 6];
tmp[0].data[9] = data[offset + 42 + 1];
tmp[0].data[10] = data[offset + 40];
tmp[1].data[0] = data[offset + 52 + 5];
tmp[1].data[1] = data[offset + 52 + 0];
tmp[1].data[2] = data[offset + 52 + 7];
tmp[1].data[3] = data[offset + 52 + 2];
tmp[1].data[4] = data[offset + 52 + 8];
tmp[1].data[5] = data[offset + 52 + 3];
tmp[1].data[6] = data[offset + 52 + 9];
tmp[1].data[7] = data[offset + 52 + 4];
tmp[1].data[8] = data[offset + 52 + 6];
tmp[1].data[9] = data[offset + 52 + 1];
tmp[1].data[10] = data[offset + 41];
tmp[0].finetune = int8_t(toSint16BE((const uint8_t *)data.data() + offset + 32));
tmp[1].finetune = int8_t(toSint16BE((const uint8_t *)data.data() + offset + 34));
uint8_t flags = data[offset + 39];
struct ins tmp2;
tmp2.notenum = data[offset + 38];
tmp2.pseudo4op = (flags & 0x02) != 0;
tmp2.voice2_fine_tune = 0;
int8_t fine_tune = (int8_t)data[offset + 37];
if(fine_tune != 0)
{
if(fine_tune == 1)
tmp2.voice2_fine_tune = 0.000025;
else if(fine_tune == -1)
tmp2.voice2_fine_tune = -0.000025;
else
tmp2.voice2_fine_tune = ((fine_tune * 15.625) / 1000.0);
}
uint32_t gmno = i + 128;
int midi_index = (gmno < (128 + 35)) ? -1
: (gmno < (128 + 88)) ? int(gmno) - 35
: -1;
if(name.empty() && (midi_index >= 0))
name = std::string(1, '\377') + MidiInsName[midi_index];
if(!name.empty())
name.insert(0, 1, '\377');
char name2[512];
sprintf(name2, "%sP%u", prefix, gmno & 127);
if(!flags)
{
size_t resno = InsertIns(tmp[0], tmp[0], tmp2, name, name2);
SetBank(bank, gmno, resno);
}
else
{
size_t resno = InsertIns(tmp[0], tmp[1], tmp2, name, name2);
SetBank(bank, gmno, resno);
}
}
}
return true;
}
#endif // LOAD_WOPL_H
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