sndrec32.h File Reference

#include "resource.h"
#include "audio_api.hpp"

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Go to the source code of this file.

Classes
struct	riff_hdr
struct	wave_hdr
struct	data_chunk

Macros
#define	MAX_LOADSTRING   100
#define	MAINWINDOW_W   350
#define	MAINWINDOW_H   190
#define	CONTROLS_CX   10
#define	INITIAL_BUFREC_SECONDS   30.0f
#define	BUTSTART_ID   0
#define	BUTEND_ID   1
#define	BUTPLAY_ID   2
#define	BUTSTOP_ID   3
#define	BUTREC_ID   4
#define	SLIDER_ID   5
#define	WAVEBAR_ID   6
#define	BUTTONS_H   30
#define	BUTTONS_W   60
#define	BUTTONS_CY   100
#define	BUTTONS_CX   (CONTROLS_CX)
#define	BUTTONS_SPACE   5
#define	SLIDER_CX   CONTROLS_CX
#define	SLIDER_CY   65
#define	SLIDER_H   30
#define	SLIDER_W   320
#define	STRPOS_X   240
#define	STRPOS_Y   5
#define	STRDUR_X   (STRPOS_X)
#define	STRDUR_Y   (STRPOS_Y + 13)
#define	STRBUF_X   (STRDUR_X)
#define	STRBUF_Y   (STRDUR_Y + 13)
#define	STRFMT_X   10
#define	STRFMT_Y   (STRPOS_Y)
#define	STRCHAN_X   (STRFMT_X)
#define	STRCHAN_Y   (STRFMT_Y + 13)
#define	WAVEBAR_X   (CONTROLS_CX + 90)
#define	WAVEBAR_Y   (STRPOS_Y)
#define	WAVEBAR_CX   130
#define	WAVEBAR_CY   50
#define	WAVEBAR_TIMERID   2
#define	WAVEBAR_TIMERTIME   80
#define	WAVEBAR_COLOR   (RGB(0, 0, 255))
#define	REFRESHA_X   (STRPOS_X)
#define	REFRESHA_Y   (STRPOS_Y)
#define	REFRESHA_CX   (REFRESHA_X + 100)
#define	REFRESHA_CY   (REFRESHA_Y + 55)
#define	REFRESHB_X   (STRFMT_X)
#define	REFRESHB_Y   (STRFMT_Y)
#define	REFRESHB_CX   (REFRESHB_X + 85)
#define	REFRESHB_CY   (REFRESHB_Y + 55)

Functions
LRESULT CALLBACK	Buttons_proc (HWND, UINT, WPARAM, LPARAM)
BOOL	write_wav (TCHAR *)
BOOL	open_wav (TCHAR *)
VOID	enable_but (DWORD)
VOID	disable_but (DWORD)
void	l_play_finished (void)
void	l_audio_arrival (unsigned int)
void	l_buffer_resized (unsigned int)

Macro Definition Documentation

BUTEND_ID

#define BUTEND_ID   1

Definition at line 23 of file sndrec32.h.

BUTPLAY_ID

#define BUTPLAY_ID   2

Definition at line 24 of file sndrec32.h.

BUTREC_ID

#define BUTREC_ID   4

Definition at line 26 of file sndrec32.h.

BUTSTART_ID

#define BUTSTART_ID   0

Definition at line 22 of file sndrec32.h.

BUTSTOP_ID

#define BUTSTOP_ID   3

Definition at line 25 of file sndrec32.h.

BUTTONS_CX

#define BUTTONS_CX   (CONTROLS_CX)

Definition at line 33 of file sndrec32.h.

BUTTONS_CY

#define BUTTONS_CY   100

Definition at line 32 of file sndrec32.h.

BUTTONS_H

#define BUTTONS_H   30

Definition at line 30 of file sndrec32.h.

BUTTONS_SPACE

#define BUTTONS_SPACE   5

Definition at line 34 of file sndrec32.h.

BUTTONS_W

#define BUTTONS_W   60

Definition at line 31 of file sndrec32.h.

CONTROLS_CX

#define CONTROLS_CX   10

Definition at line 18 of file sndrec32.h.

INITIAL_BUFREC_SECONDS

#define INITIAL_BUFREC_SECONDS   30.0f

Definition at line 20 of file sndrec32.h.

MAINWINDOW_H

#define MAINWINDOW_H   190

Definition at line 16 of file sndrec32.h.

MAINWINDOW_W

#define MAINWINDOW_W   350

Definition at line 15 of file sndrec32.h.

MAX_LOADSTRING

#define MAX_LOADSTRING   100

Definition at line 13 of file sndrec32.h.

REFRESHA_CX

#define REFRESHA_CX   (REFRESHA_X + 100)

Definition at line 68 of file sndrec32.h.

REFRESHA_CY

#define REFRESHA_CY   (REFRESHA_Y + 55)

Definition at line 69 of file sndrec32.h.

REFRESHA_X

#define REFRESHA_X   (STRPOS_X)

Definition at line 66 of file sndrec32.h.

REFRESHA_Y

#define REFRESHA_Y   (STRPOS_Y)

Definition at line 67 of file sndrec32.h.

REFRESHB_CX

#define REFRESHB_CX   (REFRESHB_X + 85)

Definition at line 73 of file sndrec32.h.

REFRESHB_CY

#define REFRESHB_CY   (REFRESHB_Y + 55)

Definition at line 74 of file sndrec32.h.

REFRESHB_X

#define REFRESHB_X   (STRFMT_X)

Definition at line 71 of file sndrec32.h.

REFRESHB_Y

#define REFRESHB_Y   (STRFMT_Y)

Definition at line 72 of file sndrec32.h.

SLIDER_CX

#define SLIDER_CX   CONTROLS_CX

Definition at line 36 of file sndrec32.h.

SLIDER_CY

#define SLIDER_CY   65

Definition at line 37 of file sndrec32.h.

SLIDER_H

#define SLIDER_H   30

Definition at line 38 of file sndrec32.h.

SLIDER_ID

#define SLIDER_ID   5

Definition at line 27 of file sndrec32.h.

SLIDER_W

#define SLIDER_W   320

Definition at line 39 of file sndrec32.h.

STRBUF_X

#define STRBUF_X   (STRDUR_X)

Definition at line 47 of file sndrec32.h.

STRBUF_Y

#define STRBUF_Y   (STRDUR_Y + 13)

Definition at line 48 of file sndrec32.h.

STRCHAN_X

#define STRCHAN_X   (STRFMT_X)

Definition at line 53 of file sndrec32.h.

STRCHAN_Y

#define STRCHAN_Y   (STRFMT_Y + 13)

Definition at line 54 of file sndrec32.h.

STRDUR_X

#define STRDUR_X   (STRPOS_X)

Definition at line 44 of file sndrec32.h.

STRDUR_Y

#define STRDUR_Y   (STRPOS_Y + 13)

Definition at line 45 of file sndrec32.h.

STRFMT_X

#define STRFMT_X   10

Definition at line 50 of file sndrec32.h.

STRFMT_Y

#define STRFMT_Y   (STRPOS_Y)

Definition at line 51 of file sndrec32.h.

STRPOS_X

#define STRPOS_X   240

Definition at line 41 of file sndrec32.h.

STRPOS_Y

#define STRPOS_Y   5

Definition at line 42 of file sndrec32.h.

WAVEBAR_COLOR

#define WAVEBAR_COLOR   (RGB(0, 0, 255))

Definition at line 64 of file sndrec32.h.

WAVEBAR_CX

#define WAVEBAR_CX   130

Definition at line 58 of file sndrec32.h.

WAVEBAR_CY

#define WAVEBAR_CY   50

Definition at line 59 of file sndrec32.h.

WAVEBAR_ID

#define WAVEBAR_ID   6

Definition at line 28 of file sndrec32.h.

WAVEBAR_TIMERID

#define WAVEBAR_TIMERID   2

Definition at line 61 of file sndrec32.h.

WAVEBAR_TIMERTIME

#define WAVEBAR_TIMERTIME   80

Definition at line 62 of file sndrec32.h.

WAVEBAR_X

#define WAVEBAR_X   (CONTROLS_CX + 90)

Definition at line 56 of file sndrec32.h.

WAVEBAR_Y

#define WAVEBAR_Y   (STRPOS_Y)

Definition at line 57 of file sndrec32.h.

Function Documentation

Buttons_proc()

LRESULT CALLBACK Buttons_proc	(	HWND	,
		UINT	,
		WPARAM	,
		LPARAM
	)

disable_but()

VOID disable_but

(

DWORD

id

)

Definition at line 919 of file sndrec32.cpp.

{
    butdisabled[id] = TRUE;
    SendMessage(buttons[id], BM_SETIMAGE, (WPARAM)IMAGE_BITMAP, (LPARAM)butbmps_dis[id]);
}

Referenced by WndProc().

enable_but()

VOID enable_but

(

DWORD

id

)

Definition at line 913 of file sndrec32.cpp.

{
    butdisabled[id] = FALSE;
    SendMessage(buttons[id], BM_SETIMAGE, (WPARAM)IMAGE_BITMAP, (LPARAM)butbmps[id]);
}

Referenced by l_play_finished(), open_wav(), and WndProc().

l_audio_arrival()

void l_audio_arrival

(

unsigned int

samples_arrival

)

Definition at line 904 of file sndrec32.cpp.

{
    slider_pos += (DWORD)((slider_max * samples_arrival) / samples_max);
}

Referenced by _tWinMain().

l_buffer_resized()

void l_buffer_resized

(

unsigned int

new_size

)

Definition at line 909 of file sndrec32.cpp.

{
}

Referenced by _tWinMain().

l_play_finished()

void l_play_finished

(

void

)

Definition at line 892 of file sndrec32.cpp.

{
    stopped_flag = true;
 
    enable_but(BUTSTART_ID);
    enable_but(BUTEND_ID);
    enable_but(BUTREC_ID);
    enable_but(BUTPLAY_ID);
 
    InvalidateRect(wave_win, 0, TRUE);
}

Referenced by _tWinMain().

open_wav()

BOOL open_wav

(

TCHAR *

f

)

Definition at line 925 of file sndrec32.cpp.

{
    HANDLE file;
 
    riff_hdr r;
    wave_hdr w;
    data_chunk d;
 
    BOOL b;
 
    DWORD bytes_recorded_in_wav = 0;
    DWORD is_read = 0;
 
    file = CreateFile(f,
                      GENERIC_READ,
                      0,
                      0,
                      OPEN_EXISTING,
                      FILE_ATTRIBUTE_NORMAL,
                      0);
    if (!file)
    {
        MessageBox(main_win,
                   TEXT("Cannot open file. CreateFile() error."),
                   TEXT("ERROR"),
                   MB_OK | MB_ICONERROR);
 
        return FALSE;
    }
 
    b = ReadFile(file, (LPVOID)&r, sizeof(r), &is_read, 0);
    if (!b)
    {
        MessageBox(main_win,
                   TEXT("Cannot read RIFF header."),
                   TEXT("ERROR"),
                   MB_OK | MB_ICONERROR);
 
        CloseHandle(file);
        return FALSE;
    }
 
    b = ReadFile(file, (LPVOID)&w, sizeof(w), &is_read, 0);
    if (!b)
    {
        MessageBox(main_win,
                   TEXT("Cannot read WAVE header."),
                   TEXT("ERROR"),
                   MB_OK | MB_ICONERROR);
 
        CloseHandle(file);
        return FALSE;
    }
 
    b = ReadFile(file, (LPVOID)&d, sizeof(d), &is_read, 0);
    if (!b)
    {
        MessageBox(main_win,
                   TEXT("Cannot read WAVE subchunk."),
                   TEXT("ERROR"),
                   MB_OK | MB_ICONERROR);
 
        CloseHandle(file);
        return FALSE;
    }
 
    bytes_recorded_in_wav = r.chunksize - 36;
    if (bytes_recorded_in_wav == 0)
    {
        MessageBox(main_win,
                   TEXT("Cannot read file. No audio data."),
                   TEXT("ERROR"),
                   MB_OK | MB_ICONERROR);
 
        CloseHandle(file);
        return FALSE;
    }
 
    snd::audio_format openfmt(w.SampleRate, w.BitsPerSample, w.NumChannels);
 
    AUD_BUF->clear();
    AUD_BUF->alloc_bytes(bytes_recorded_in_wav);
 
    b = ReadFile(file,
                 (LPVOID)AUD_BUF->audio_buffer(),
                 bytes_recorded_in_wav,
                 &is_read,
                 0);
 
    AUD_BUF->set_b_received(bytes_recorded_in_wav);
 
    if ((!b) || (is_read != bytes_recorded_in_wav))
    {
        MessageBox(main_win,
                   TEXT("Cannot read file. Error reading audio data."),
                   TEXT("ERROR"),
                   MB_OK | MB_ICONERROR);
 
        CloseHandle(file);
 
        AUD_BUF->reset();
        return FALSE;
    }
 
    CloseHandle(file);
 
    enable_but(BUTPLAY_ID);
    enable_but(BUTSTOP_ID);
    enable_but(BUTSTART_ID);
    enable_but(BUTEND_ID);
    enable_but(BUTREC_ID);
 
    samples_max = AUD_BUF->samples_received();
 
    isnew = FALSE;
 
    return TRUE;
}

Referenced by WndProc().

write_wav()

BOOL write_wav

(

TCHAR *

f

)

Definition at line 1045 of file sndrec32.cpp.

{
    HANDLE file;
    DWORD written;
    BOOL is_writ;
    int i;
    riff_hdr r;
    wave_hdr w;
    data_chunk d;
 
    file = CreateFile(f, GENERIC_WRITE, 0, 0, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0);
    if (!file)
    {
        i = MessageBox(main_win,
                       TEXT("File already exist. Overwrite it?"),
                       TEXT("Warning"),
                       MB_YESNO | MB_ICONQUESTION);
 
        if (i == IDYES)
        {
            file = CreateFile(f, GENERIC_WRITE, 0, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
            if (!file)
            {
                MessageBox(main_win,
                           TEXT("File Error, CreateFile() failed."),
                           TEXT("ERROR"),
                           MB_OK | MB_ICONERROR);
 
                return FALSE;
            }
 
        } else
            return FALSE;
    }
 
    r.magic = 0x46464952;
    r.format = 0x45564157;
    r.chunksize = 36 + AUD_BUF->bytes_recorded();
 
    w.Subchunkid = 0x20746d66;
    w.Subchunk1Size = 16;
    w.AudioFormat = 1;
    w.NumChannels = AUD_BUF->audinfo().channels();
    w.SampleRate = AUD_BUF->audinfo().sample_rate();
    w.ByteRate = AUD_BUF->audinfo().byte_rate();
    w.BlockAlign = AUD_BUF->audinfo().block_align();
    w.BitsPerSample = AUD_BUF->audinfo().bits();
 
    d.subc = 0x61746164;
    d.subc_size = AUD_BUF->bytes_recorded();
 
    /* Writing headers */
    is_writ = WriteFile(file, (LPCVOID)&r, sizeof(r), &written, 0);
    if (!is_writ)
    {
        MessageBox(main_win,
                   TEXT("File Error, WriteFile() failed."),
                   TEXT("ERROR"),
                   MB_OK | MB_ICONERROR);
 
        CloseHandle(file);
        return FALSE;
    }
 
    is_writ = WriteFile(file, (LPCVOID)&w, sizeof(w), &written, 0);
    if (!is_writ)
    {
        MessageBox(main_win,
                   TEXT("File Error, WriteFile() failed."),
                   TEXT("ERROR"),
                   MB_OK | MB_ICONERROR);
 
        CloseHandle(file);
        return FALSE;
    }
 
    is_writ = WriteFile(file, (LPCVOID)&d, sizeof(d), &written, 0);
    if (!is_writ)
    {
        MessageBox(main_win,
                   TEXT("File Error, WriteFile() failed."),
                   TEXT("ERROR"),
                   MB_OK | MB_ICONERROR);
 
        CloseHandle(file);
        return FALSE;
    }
 
    is_writ = WriteFile(file,
                        (LPCVOID)AUD_BUF->audio_buffer(),
                        AUD_BUF->bytes_recorded(),
                        &written,
                        0);
    if (!is_writ)
    {
        MessageBox(main_win,
                   TEXT("File Error, WriteFile() failed."),
                   TEXT("ERROR"),
                   MB_OK | MB_ICONERROR);
 
        CloseHandle(file);
        return FALSE;
    }
 
    CloseHandle(file);
    return TRUE;
}

Referenced by WndProc().