mirror of
https://github.com/bsnes-emu/bsnes.git
synced 2025-10-04 07:21:37 +02:00
7619805266
byuu says: Emulates DMC channel (sound effect when Link gets hit in Zelda 1, for instance), fixes up bugs in rectangle/sweep and triangle channels, adds DMC/frame APU IRQs, adds proper stalling for DMC ROM reads (should even be cycle accurate, but has one extra cycle when triggered during OAM DMA, I think), but forgets the frame IRQ acknowledge clear on $4015 read (will fix next WIP.) All sound courtesy of Ryphecha. Made template configuration settings window (empty for now.) Simplified SNES cheat.cpp code. Some other stuff. Further developed RSI.
98 lines
3.2 KiB
C++
Executable File
98 lines
3.2 KiB
C++
Executable File
bool InterfaceNES::loadCartridge(const string &filename) {
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filemap fp;
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if(fp.open(filename, filemap::mode::read) == false) return false;
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interface->baseName = nall::basename(filename);
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NES::Interface::loadCartridge("", fp.data(), fp.size());
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fp.close();
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return true;
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}
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void InterfaceNES::unloadCartridge() {
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NES::Interface::unloadCartridge();
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interface->baseName = "";
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}
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//
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void InterfaceNES::videoRefresh(const uint16_t *data) {
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interface->video_refresh();
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uint32_t *output;
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unsigned outpitch;
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if(video.lock(output, outpitch, 256, 240)) {
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for(unsigned y = 0; y < 240; y++) {
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const uint16_t *sp = data + y * 256;
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uint32_t *dp = output + y * (outpitch >> 2);
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for(unsigned x = 0; x < 256; x++) {
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*dp++ = palette[*sp++];
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}
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}
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video.unlock();
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video.refresh();
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}
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}
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void InterfaceNES::audioSample(int16_t sample) {
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signed samples[] = { sample };
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dspaudio.sample(samples);
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while(dspaudio.pending()) {
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dspaudio.read(samples);
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audio.sample(samples[0], samples[0]); //NES audio output is monaural; ruby only takes stereo audio
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}
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}
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int16_t InterfaceNES::inputPoll(bool port, unsigned device, unsigned id) {
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if(port == 0 && device == 0) {
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switch(id) {
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case 0: return interface->inputState[keyboard(0)[Keyboard::X]];
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case 1: return interface->inputState[keyboard(0)[Keyboard::Z]];
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case 2: return interface->inputState[keyboard(0)[Keyboard::Apostrophe]];
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case 3: return interface->inputState[keyboard(0)[Keyboard::Return]];
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case 4: return interface->inputState[keyboard(0)[Keyboard::Up]];
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case 5: return interface->inputState[keyboard(0)[Keyboard::Down]];
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case 6: return interface->inputState[keyboard(0)[Keyboard::Left]];
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case 7: return interface->inputState[keyboard(0)[Keyboard::Right]];
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}
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}
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return 0;
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}
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InterfaceNES::InterfaceNES() {
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palette = {
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0x7c7c7c, 0x0000fc, 0x0000bc, 0x4428bc,
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0x940084, 0xa80020, 0xa81000, 0x881400,
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0x503000, 0x007800, 0x006800, 0x005800,
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0x004058, 0x000000, 0x000000, 0x000000,
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0xbcbcbc, 0x0078f8, 0x0058f8, 0x6844fc,
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0xd800cc, 0xe40058, 0xf83800, 0xe45c10,
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0xac7c00, 0x00b800, 0x00a800, 0x00a844,
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0x008888, 0x000000, 0x000000, 0x000000,
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0xf8f8f8, 0x3cbcfc, 0x6888fc, 0x9878f8,
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0xf878f8, 0xf85898, 0xf87858, 0xfca044,
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0xf8b800, 0xb8f818, 0x58d854, 0x58f898,
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0x00e8d8, 0x787878, 0x000000, 0x000000,
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0xfcfcfc, 0xa4e4fc, 0xb8b8b8, 0xd8d8f8,
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0xf8b8f8, 0xf8a4c0, 0xf0d0b0, 0xfce0a8,
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0xf8d878, 0xd8f878, 0xb8f8b8, 0xb8f8d8,
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0x00fcfc, 0xf8d8f8, 0x000000, 0x000000,
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};
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for(unsigned e = 1; e < 8; e++) {
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static const double rfactor[8] = { 1.000, 1.239, 0.794, 1.019, 0.905, 1.023, 0.741, 0.750 };
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static const double gfactor[8] = { 1.000, 0.915, 1.086, 0.980, 1.026, 0.908, 0.987, 0.750 };
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static const double bfactor[8] = { 1.000, 0.743, 0.882, 0.653, 1.277, 0.979, 0.101, 0.750 };
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for(unsigned n = 0; n < 64; n++) {
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unsigned c = palette[n];
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uint8_t r = c >> 16, g = c >> 8, b = c >> 0;
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r = uclamp<8>((unsigned)(r * rfactor[e]));
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g = uclamp<8>((unsigned)(g * gfactor[e]));
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b = uclamp<8>((unsigned)(b * bfactor[e]));
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palette[e * 64 + n] = (r << 16) | (g << 8) | (b << 0);
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}
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}
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}
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