#include <stdio.h>
#include <iostream>
#include <graphics.h>
#include <math.h>
#include <mmsystem.h>
#define M_PI 3.1415926535
#define fm(fa,fb,va,vb,x) (va*sin(x*fa*M_PI/10000.0+vb*sin(x*fb*M_PI/10000.0)))
using namespace std;
const int w = 640,h = 480;
class pcmplay {
private:
HWAVEOUT hwo;
WAVEHDR wh;
WAVEFORMATEX wfx;
HANDLE wait;
public:
void initpcmout() {
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nChannels = 1;
wfx.nSamplesPerSec = 8000;
wfx.nAvgBytesPerSec = 16000;
wfx.nBlockAlign = 2;
wfx.wBitsPerSample = 16;
wfx.cbSize = 0;
}
void play(char *buf,size_t bufsiz) {
wait = CreateEvent(NULL, 0, 0, NULL);
waveOutOpen(&hwo, WAVE_MAPPER, &wfx, (DWORD_PTR)wait, 0L, CALLBACK_EVENT);
wh.lpData = buf;
wh.dwBufferLength = bufsiz;
wh.dwFlags = 0L;
wh.dwLoops = 1L;
waveOutPrepareHeader(hwo, &wh, sizeof(WAVEHDR));
waveOutWrite(hwo, &wh, sizeof(WAVEHDR));
WaitForSingleObject(wait, INFINITE);
}
void end() {
//waveOutClose(hwo);
waveOutReset(hwo);
}
};
const int buflen = 1024*320;
pcmplay outwav;
double fa=1000,fb=1000,va=120,vb=120;
/*
~=va*sin(x*fa+vb*sin(x*fb))
+----------+ | +----------+ 0,16 255,16
+----------+ | +----------+
|
+----------+ | +----------+
+----------+ | +----------+
|==play==|
*/
void linebar(int x1,int y1,int x2,int y2) {
line (x1,y1,x2,y1);
line (x1,y1,x1,y2);
line (x2,y2,x2,y1);
line (x2,y2,x1,y2);
}
int main() {
outwav.initpcmout();//init
setinitmode (2);
initgraph(w,h);
setfont(16,8,"宋体");
MOUSEMSG msg;
int ldown=0,isplay = 1;
char *buf = new char[buflen];
for (;; delay_fps(60)) {
cleardevice ();
setcolor (0x00ff00);
xyprintf (0,0,"fm合成器 va*sin(x*fa+vb*sin(x*fb)):");
setcolor (0x777777);
xyprintf (0,32,"va(0-255):%.5f",va*2.0);
xyprintf (288,32,"vb(0-255):%.5f",vb*2.0);
xyprintf (0,56,"fa(0-4095):%.5f",fa);
xyprintf (288,56,"fb(0-4095):%.5f",fb);
setcolor (0x22ff55);
linebar(0,32,256,48);
linebar(0,56,256,72);
linebar(288,32,288+256,48);
linebar(288,56,288+256,72);
setcolor (0xffff00);
line (va*2,32,va*2,48);
line (fa/16,56,fa/16,72);
line (288+vb*2,32,288+vb*2,48);
line (288+fb/16,56,288+fb/16,72);
xyprintf (0,h-16,"fps:%.5f FMake by gy134",getfps());
for (int i = 0; i <= w; ++i)
buf[i] = (char)fm(fa,fb,va,vb,i);
for (int i = 0; i <= w; ++i)
putpixel(i,h-128-16+buf[i],0xffffff);
while (mousemsg()) {
msg = GetMouseMsg();
if (msg.uMsg == 513)
ldown = 1;
if (msg.uMsg == 514) {
ldown = 0;
if (isplay == 1) {
for (int i = 0; i < buflen; ++i)
buf[i] = (char)fm(fa,fb,va,vb,i);
outwav.end();
outwav.play(buf,buflen);//play
}
}
}
if (ldown == 1) {
if (msg.x >= 0&&msg.x <= 255&&msg.y > 32&&msg.y < 48)
va = msg.x/2.0;
if (msg.x >= 0&&msg.x <= 255&&msg.y > 56&&msg.y < 72)
fa = 16*msg.x;
if (msg.x >= 288&&msg.x <= 288+255&&msg.y > 32&&msg.y < 48)
vb = (msg.x-288)/2.0;
if (msg.x >= 288&&msg.x <= 288+255&&msg.y > 56&&msg.y < 72)
fb = 16*(msg.x-288);
}
while (kbhit())
if (getch() == 13)isplay = !isplay;
if (isplay == 0)outwav.end();
}
}
/*FMake by gy314*/#include <stdio.h>
#include <iostream>
#include <graphics.h>
#include <math.h>
#include <mmsystem.h>
#define M_PI 3.1415926535
#define am(fa,fb,va,vb,x) ((va*sin(x*fa*M_PI/10000.0))*(vb*sin(x*fb*M_PI/10000.0)))
using namespace std;
const int w = 640,h = 480;
class pcmplay {
private:
HWAVEOUT hwo;
WAVEHDR wh;
WAVEFORMATEX wfx;
HANDLE wait;
public:
void initpcmout() {
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nChannels = 1;
wfx.nSamplesPerSec = 8000;
wfx.nAvgBytesPerSec = 16000;
wfx.nBlockAlign = 2;
wfx.wBitsPerSample = 16;
wfx.cbSize = 0;
}
void play(char *buf,size_t bufsiz) {
wait = CreateEvent(NULL, 0, 0, NULL);
waveOutOpen(&hwo, WAVE_MAPPER, &wfx, (DWORD_PTR)wait, 0L, CALLBACK_EVENT);
wh.lpData = buf;
wh.dwBufferLength = bufsiz;
wh.dwFlags = 0L;
wh.dwLoops = 1L;
waveOutPrepareHeader(hwo, &wh, sizeof(WAVEHDR));
waveOutWrite(hwo, &wh, sizeof(WAVEHDR));
WaitForSingleObject(wait, INFINITE);
}
void end() {
//waveOutClose(hwo);
waveOutReset(hwo);
}
};
const int buflen = 1024*320;
pcmplay outwav;
double fa=1000,fb=1000,va=120,vb=120;
/*
~=va*sin(x*fa+vb*sin(x*fb))
+----------+ | +----------+ 0,16 255,16
+----------+ | +----------+
|
+----------+ | +----------+
+----------+ | +----------+
|==play==|
*/
void linebar(int x1,int y1,int x2,int y2) {
line (x1,y1,x2,y1);
line (x1,y1,x1,y2);
line (x2,y2,x2,y1);
line (x2,y2,x1,y2);
}
int main() {
outwav.initpcmout();//init
setinitmode (2);
initgraph(w,h);
setfont(16,8,"宋体");
MOUSEMSG msg;
int ldown=0,isplay = 1;
char *buf = new char[buflen];
for (;; delay_fps(60)) {
cleardevice ();
setcolor (0x00ff00);
xyprintf (0,0,"am合成器 (va*sin(x*fa))*(vb*sin(x*fb)):");
setcolor (0x777777);
xyprintf (0,32,"va(0-255):%.5f",va*2.0);
xyprintf (288,32,"vb(0-255):%.5f",vb*2.0);
xyprintf (0,56,"fa(0-4095):%.5f",fa);
xyprintf (288,56,"fb(0-4095):%.5f",fb);
setcolor (0x22ff55);
linebar(0,32,256,48);
linebar(0,56,256,72);
linebar(288,32,288+256,48);
linebar(288,56,288+256,72);
setcolor (0xffff00);
line (va*2,32,va*2,48);
line (fa/16,56,fa/16,72);
line (288+vb*2,32,288+vb*2,48);
line (288+fb/16,56,288+fb/16,72);
xyprintf (0,h-16,"fps:%.5f AMake by gy134",getfps());
for (int i = 0; i <= w; ++i)
buf[i] = (char)am(fa,fb,va,vb,i);
for (int i = 0; i <= w; ++i)
putpixel(i,h-128-16+buf[i],0xffffff);
while (mousemsg()) {
msg = GetMouseMsg();
if (msg.uMsg == 513)
ldown = 1;
if (msg.uMsg == 514) {
ldown = 0;
if (isplay == 1) {
for (int i = 0; i < buflen; ++i)
buf[i] = (char)am(fa,fb,va,vb,i);
outwav.end();
outwav.play(buf,buflen);//play
}
}
}
if (ldown == 1) {
if (msg.x >= 0&&msg.x <= 255&&msg.y > 32&&msg.y < 48)
va = msg.x/2.0;
if (msg.x >= 0&&msg.x <= 255&&msg.y > 56&&msg.y < 72)
fa = 16*msg.x;
if (msg.x >= 288&&msg.x <= 288+255&&msg.y > 32&&msg.y < 48)
vb = (msg.x-288)/2.0;
if (msg.x >= 288&&msg.x <= 288+255&&msg.y > 56&&msg.y < 72)
fb = 16*(msg.x-288);
}
while (kbhit())
if (getch() == 13)isplay = !isplay;
if (isplay == 0)outwav.end();
}
}
/*AMake by gy314*/
项目：EGE
