#include <string>
#include <fstream> // Needed for tracelog
#include "screen.h"
+#include "sound.h"
#include "resource.h" // Thunder graphics & sounds
using namespace std;
extern uint8_t hScrollOffset; // Horizontal scroll offset
extern uint8_t vScrollOffset; // Vertical scroll offset
extern uint32_t voffsets[8];
-extern uint8_t voice_rom[]; // PCM data pointer
extern fstream tr; // Tracelog
// Global shit
uint16_t show_which_msg; // Which message to show
bool show_gui; // Whether or not to show GUI
uint16_t selection; // Which GUI item currently selected
-uint16_t snd_num;
uint16_t gui_debounce; // GUI key debounce value
uint16_t num_coins; // Number of coins dropped
uint16_t blink = 0; // Used to blink player 1 & 2 start buttons
bool user_selected_something; // Flag for well, you know...
uint16_t dswitch; // Which dipswitch is selected...
-// The following are global for the sound routines...
-
-const float sampleBase = 22050.0/6000.0; // Btwn 5512.5 and 6000
-bool snd_go = false;
-bool chan1_go = false, chan2_go = false, chan3_go = false;
-bool chan4_go = false, chan5_go = false, chan6_go = false;
-uint8_t * sndp1, * sndp2, * sndp3, * sndp4, * sndp5, * sndp6;
-uint32_t rom_pos, end_pos;
-uint32_t spos1, end_pos1;
-uint32_t spos2, end_pos2;
-uint32_t spos3, end_pos3;
-uint32_t spos4, end_pos4;
-uint32_t spos5, end_pos5;
-uint32_t spos6, end_pos6;
-float sample1;
-uint8_t prevSamp1;
-int8_t delta_x1;
-float sample2;
-uint8_t prevSamp2;
-int8_t delta_x2;
-
-uint8_t * snd_array[3] = { sunknown, scya, scamera }; // From RESOURCE.H
-uint32_t snd_lens[3] = { sunknownlen, scyalen, scameralen };
-
// Bitmaps
uint8_t bmp1[] = {
if (selection == SNAPSHOT) // Snapshot
{
SpawnSound(USERSOUND, SCAMERA);
- SnapPCX(screen);
+ SavePCXSnapshot();
}
if (selection == RESET) // Reset machine
ShowNumbers(snd_num);
}
-
-//
-// Sound stuff (Will go elsewhere??? Perhaps in sound.cpp?)
-//
-void SpawnSound(int type, int snd, int channel/* = 0*/)
-{
- extern uint32_t psg_lens[16];
- extern uint8_t * psg_adrs[16];
- extern uint32_t voc_lens[32];
- extern uint8_t * voc_adrs[32];
- extern uint32_t fm_lens[14];
- extern uint8_t * fm_adrs[14];
-
- snd_num = snd;
- SpawnMsg(MSHOWNUMS);
-
- if (type == GAMESOUND)
- {
- snd--; // Will that do it??? Yes!!!
-
- if (channel == 0)
- {
- // 00 nn ss (nn # of repeats of sample ss)
- uint32_t st = 0;
-
- if (snd & 0x40)
- {
- st = 0x10000;
- snd &= 0x0F;
- }
-
- spos1 = (voice_rom[st + (snd << 1)] << 8) | voice_rom[st + (snd << 1) + 1];
- spos1 += st; // Need to add start somewhere...
- prevSamp1 = 128;
- sample1 = 0;
- chan1_go = true;
- }
- else
- {
- uint32_t st = 0;
-
- if (snd & 0x40)
- {
- st = 0x10000;
- snd &= 0x0F;
- }
-
- spos2 = (voice_rom[st + (snd << 1)] << 8) | voice_rom[st + (snd << 1) + 1];
- spos2 += st; // Need to add start somewhere...
- prevSamp2 = 128;
- sample2 = 0;
- chan2_go = true;
- }
- }
- else if (type == PSGSOUND)
- {
- if (snd_num & 0x10) // Second channel?
- {
- spos3 = 0;
- end_pos3 = psg_lens[snd_num & 0x0F];
- sndp3 = psg_adrs[snd_num & 0x0F];
- chan3_go = true;
-
- if (spos3 == end_pos3)
- chan3_go = false; // No sound loaded, so don't do it!
- }
- else // First channel
- {
- spos4 = 0;
- end_pos4 = psg_lens[snd_num & 0x0F];
- sndp4 = psg_adrs[snd_num & 0x0F];
- chan4_go = true;
-
- if (spos4 == end_pos4)
- chan4_go = false; // No sound loaded, so don't do it!
- }
- }
- else if (type == FMSOUND)
- {
- spos5 = 0;
- end_pos5 = fm_lens[snd_num];
- sndp5 = fm_adrs[snd_num];
- chan5_go = true;
-
- if (spos5 == end_pos5)
- chan5_go = false; // No sound loaded, so don't do it!
- }
- else if (type == USERSOUND)
- {
- spos6 = 0;
- end_pos6 = snd_lens[snd_num]; // User sound
- sndp6 = snd_array[snd_num]; // Load pointer
- chan6_go = true;
- }
-}
-
-
-//
-// Sound card IRQ handler
-//
-void SoundFunc(void * userdata, Uint8 * buff, int num)
-{
- // 0-22 different sounds...
- uint16_t cnt = 0, sample;
- uint8_t start_samp1, end_samp1, start_samp2, end_samp2;
- uint8_t samp1 = 128, samp2 = 128, samp3 = 128,
- samp4 = 128, samp5 = 128, samp6 = 128; // Zero samples...
-
- // Kill sound...
- memset(buff, 128, num);
-
- if (chan1_go || chan2_go || chan3_go || chan4_go || chan5_go || chan6_go)
- {
- while (cnt != num)
- {
- if (chan1_go)
- {
- if (sample1 < 1)
- {
- samp1 = voice_rom[spos1++];
-
- // Kill channel 1 if done...
- if (samp1 == 0xFF)
- {
- chan1_go = false;
- samp1 = 128;
- }
- // RLE compression...
- else if (samp1 == 0x00)
- {
- // # of repeats
- sample1 += (float)voice_rom[spos1++] * sampleBase;
- // Get last good sample
- samp1 = prevSamp1;
- }
- else
- // Keep fractional part intact
- sample1 += sampleBase;
- }
-
- prevSamp1 = samp1; // Save last sample value
- sample1 -= 1.0; // Decrement repeat counter
- }
-
-// Stretching 5KHz samples to 22KHz:
-// numRepeats = 4;
-// 6KHz -> 22KHz: 22/6 repeats...
- if (chan2_go)
- {
- if (sample2 < 1)
- {
- samp2 = voice_rom[spos2++];
-
- if (samp2 == 0xFF)
- {
- chan2_go = false;
- samp2 = 128; // Kill channel 2 if done...
- }
- else if (samp2 == 0x00) // RLE compression...
- {
- sample2 += (float)voice_rom[spos2++] * sampleBase; // # of repeats
- samp2 = prevSamp2;
- }
- else
- sample2 += sampleBase;
- }
-
-// Delta-X values were making the samples sound like crap...
-// start_samp2 += delta_x2;
- prevSamp2 = samp2;
- sample2 -= 1.0;
- }
-
- if (chan3_go)
- {
- samp3 = sndp3[spos3++];
-
- if (spos3 == end_pos3)
- {
- chan3_go = false;
- samp3 = 128; // Kill channel 3 if done...
- }
- }
-
- if (chan4_go)
- {
- samp4 = sndp4[spos4++];
-
- if (spos4 == end_pos4)
- {
- chan4_go = false;
- samp4 = 128; // Kill channel 4 if done...
- }
- }
-
- if (chan5_go)
- {
- samp5 = sndp5[spos5++];
-
- if (spos5 == end_pos5)
- {
- chan5_go = false;
- samp5 = 128; // Kill channel 5 if done...
- }
- }
-
- if (chan6_go)
- {
- samp6 = sndp6[spos6++];
-
- if (spos6 == end_pos6)
- {
- chan6_go = false;
- samp6 = 128; // Kill channel 6...
- }
- }
-
- // Mix 'em...
- sample = samp1 + samp2 + samp3 + samp4 + samp5 + samp6 - 640;
-
- // If it overflowed, clip it
- if (sample & 0xFF00)
- sample = (sample & 0x8000 ? 0x00 : 0xFF);
-
- buff[cnt++] = sample;
- }
- }
-}
-
projects / thunder / blobdiff