void CRendering::render(SGlobal* Global)
{
int i;
int iKeyX;
int iKeyY = PIANO_Y;
int iNote;
int iOctave;
int iOffset;
// background
SelectObject(sGDI->hdcmem, (HBRUSH)GetStockObject(WHITE_BRUSH));
Rectangle(sGDI->hdcmem, 0, 0, sGDI->ClientX, sGDI->ClientY);
// header
drawText(16, 12, sHeader, sGDI->hFontText, RGB(0, 0, 0));
drawText(16, 30, "C++ Music Library", sGDI->hFontText, RGB(0, 0, 0));
drawText(16, 48, "Sample application", sGDI->hFontText, RGB(0, 0, 0));
drawText(16, 86, "Playing! Press P to change the piece. Press ESC to quit...", sGDI->hFontBold, RGB(0, 0, 0));
// first loop: white keys
for(i = 0; i < 88; i++)
{
if(!MCNotes::isNatural(i + LOWEST_NOTE))
continue;
iNote = (i + LOWEST_NOTE) % 12;
iOctave = (i + LOWEST_NOTE) / 12 - 2; // pitch: [21, 108] --> octave: [0, 7]
iOffset = 2 + (iOctave * 7); // initial offset 2: the first C is the 3rd key
iKeyY = PIANO_Y + (WHITEKEY_HEIGHT * 4 / 5);
switch(iNote)
{
case D:
iOffset += 1;
break;
case E:
iOffset += 2;
break;
case F:
iOffset += 3;
break;
case G:
iOffset += 4;
break;
case A:
iOffset += 5;
break;
case B:
iOffset += 6;
break;
}
iKeyX = 16 + (WHITEKEY_WIDTH / 2) + (WHITEKEY_WIDTH * iOffset);
// draw key
drawBMP(iKeyX - (WHITEKEY_WIDTH / 2), PIANO_Y, WHITEKEY_WIDTH, WHITEKEY_HEIGHT, sGDI->hdcWhiteKey, sGDI->bmpWhiteKey);
if(Global->bKeyPressed[i])
{
SelectObject(sGDI->hdcmem, (HBRUSH)sGDI->hKeyBrush[Global->iKeyIntensity[i]]);
Ellipse(sGDI->hdcmem, iKeyX - 5, iKeyY - 5, iKeyX + 5, iKeyY + 5);
}
}
// second loop: black keys
for(i = 0; i < 88; i++)
{
if(MCNotes::isNatural(i + LOWEST_NOTE))
continue;
iNote = (i + LOWEST_NOTE) % 12;
iOctave = (i + LOWEST_NOTE) / 12 - 2; // pitch: [21, 108] --> octave: [0, 7]
iOffset = 2 + (iOctave * 7); // initial offset 2: the first C is the 3rd key
iKeyY = PIANO_Y + (BLACKKEY_HEIGHT * 2 / 3);
switch(iNote)
{
case Cs:
iOffset += 1;
break;
case Ds:
iOffset += 2;
break;
case Fs:
iOffset += 4;
break;
case Gs:
iOffset += 5;
break;
case As:
iOffset += 6;
break;
}
iKeyX = 16 + (WHITEKEY_WIDTH * iOffset);
// draw key
drawBMP(iKeyX - (WHITEKEY_WIDTH / 2), PIANO_Y, BLACKKEY_WIDTH, BLACKKEY_HEIGHT, sGDI->hdcBlackKey, sGDI->bmpBlackKey);
if(Global->bKeyPressed[i])
{
SelectObject(sGDI->hdcmem, (HBRUSH)sGDI->hKeyBrush[Global->iKeyIntensity[i]]);
Ellipse(sGDI->hdcmem, iKeyX - 5, iKeyY - 5, iKeyX + 5, iKeyY + 5);
}
}
// damper pedal
drawBMP((sGDI->WindowSizeX / 2) - (PEDAL_WIDTH / 2), PIANO_Y + WHITEKEY_HEIGHT, PEDAL_WIDTH, PEDAL_HEIGHT,
(Global->bDamper)? sGDI->hdcPedalOn: sGDI->hdcPedalOff,
(Global->bDamper)? sGDI->bmpPedalOn: sGDI->bmpPedalOff);
}
void CRendering::render(SGlobal* Global)
{
int i;
int iKeyX;
int iKeyY = PIANO_Y;
int iNote;
int iOctave;
int iOffset;
COLORREF cColor;
// background
SelectObject(sGDI->hdcmem, (HBRUSH)GetStockObject(WHITE_BRUSH));
Rectangle(sGDI->hdcmem, 0, 0, sGDI->ClientX, sGDI->ClientY);
// header
drawText(16, 12, sHeader, sGDI->hFontText, COLORREF(0x00));
drawText(16, 30, "C++ Music Library", sGDI->hFontText, COLORREF(0x00));
drawText(16, 48, "Sample application", sGDI->hFontText, COLORREF(0x00));
drawText(16, 86, "Playing! Press ESC to quit...", sGDI->hFontBold, COLORREF(0x00));
// hands diagram
drawBMP(sGDI->ClientX / 2 - HANDS_WIDTH / 2, 20, HANDS_WIDTH, HANDS_HEIGHT, sGDI->hdcHands, sGDI->bmpHands);
// first loop: white keys
for(i = 0; i < 88; i++)
{
if(!MCNotes::isNatural(i + LOWEST_NOTE))
continue;
iNote = (i + LOWEST_NOTE) % 12;
iOctave = (i + LOWEST_NOTE) / 12 - 2; // pitch: [21, 108] --> octave: [0, 7]
iOffset = 2 + (iOctave * 7); // initial offset 2: the first C is the 3rd key
iKeyY = PIANO_Y + (WHITEKEY_HEIGHT * 4 / 5);
switch(iNote)
{
case D:
iOffset += 1;
break;
case E:
iOffset += 2;
break;
case F:
iOffset += 3;
break;
case G:
iOffset += 4;
break;
case A:
iOffset += 5;
break;
case B:
iOffset += 6;
break;
}
iKeyX = 16 + (WHITEKEY_WIDTH / 2) + (WHITEKEY_WIDTH * iOffset);
// draw key
drawBMP(iKeyX - (WHITEKEY_WIDTH / 2), PIANO_Y, WHITEKEY_WIDTH, WHITEKEY_HEIGHT, sGDI->hdcWhiteKey, sGDI->bmpWhiteKey);
// key pressed
if(Global->bKeyPressed[i])
{
// left hand: blue
if(Global->iKeyHand[i] == 1)
cColor = RGB(255 - (Global->iKeyIntensity[i] * 2), 255 - (Global->iKeyIntensity[i] * 2), 255);
// right hand: red
else
cColor = RGB(255, 255 - (Global->iKeyIntensity[i] * 2), 255 - (Global->iKeyIntensity[i] * 2));
// finger number
sFinger[0] = Global->iKeyFinger[i] + 48;
drawText(iKeyX - 7, iKeyY - 12, sFinger, sGDI->hFontKeys, cColor);
}
}
// second loop: black keys
for(i = 0; i < 88; i++)
{
if(MCNotes::isNatural(i + LOWEST_NOTE))
continue;
iNote = (i + LOWEST_NOTE) % 12;
iOctave = (i + LOWEST_NOTE) / 12 - 2; // pitch: [21, 108] --> octave: [0, 7]
iOffset = 2 + (iOctave * 7); // initial offset 2: the first C is the 3rd key
iKeyY = PIANO_Y + (BLACKKEY_HEIGHT * 2 / 3);
switch(iNote)
{
case Cs:
iOffset += 1;
break;
case Ds:
iOffset += 2;
break;
case Fs:
iOffset += 4;
break;
case Gs:
iOffset += 5;
break;
case As:
iOffset += 6;
break;
}
iKeyX = 16 + (WHITEKEY_WIDTH * iOffset);
// draw key
drawBMP(iKeyX - (WHITEKEY_WIDTH / 2), PIANO_Y, BLACKKEY_WIDTH, BLACKKEY_HEIGHT, sGDI->hdcBlackKey, sGDI->bmpBlackKey);
// key pressed
if(Global->bKeyPressed[i])
{
// left hand: blue
if(Global->iKeyHand[i] == 1)
cColor = RGB(255 - (Global->iKeyIntensity[i] * 2), 255 - (Global->iKeyIntensity[i] * 2), 255);
// right hand: red
else
cColor = RGB(255, 255 - (Global->iKeyIntensity[i] * 2), 255 - (Global->iKeyIntensity[i] * 2));
// finger number
sFinger[0] = Global->iKeyFinger[i] + 48;
drawText(iKeyX - 7, iKeyY - 12, sFinger, sGDI->hFontKeys, cColor);
}
}
// damper pedal
drawBMP((sGDI->WindowSizeX / 2) - (PEDAL_WIDTH / 2), PIANO_Y + WHITEKEY_HEIGHT, PEDAL_WIDTH, PEDAL_HEIGHT,
(Global->bDamper)? sGDI->hdcPedalOn: sGDI->hdcPedalOff,
(Global->bDamper)? sGDI->bmpPedalOn: sGDI->bmpPedalOff);
}
int main(int argc, char **argv)
{
XEvent evt;
Colormap colormap;
struct timeval tv;
int screenNumber;
long eventMask;
unsigned long white;
unsigned long black;
Status rc;
int iters;
int opt;
int draw_lines;
int draw_rects;
int draw_stipples;
int draw_fonts;
int draw_image;
int zero_counters;
int scroll_type;
char image_file[256];
char proxy_app[256];
char msg[4096];
// set some defaults
g_winWidth = 640;
g_winHeight = 480;
iters = 5000;
draw_lines = 1;
draw_rects = 1;
draw_stipples = 1;
draw_fonts = 1;
draw_image = 1;
g_delay_dur = 1000;
scroll_type = SCROLL_SMOOTH1;
zero_counters = 0;
strcpy(image_file, "yosemite.bmp");
strcpy(msg, "To be or not to be!");
// process cmd line args
opterr = 0;
while ((opt = getopt(argc, argv, "lrsg:c:f:i:d:o:z:")) != -1)
{
switch (opt)
{
case 'g':
if (sscanf(optarg, "%dx%d", &g_winWidth, &g_winHeight) != 2) {
fprintf(stderr, "\nerror: invalid geometry specified\n\n");
usage();
return -1;
}
break;
case 'c':
if (sscanf(optarg, "%d", &iters) != 1) {
fprintf(stderr, "\nerror: invalid count specified\n\n");
usage();
return -1;
}
break;
case 'l':
draw_lines = 1;
draw_rects = 0;
draw_stipples = 0;
draw_fonts = 0;
draw_image = 0;
break;
case 'r':
draw_rects = 1;
draw_lines = 0;
draw_stipples = 0;
draw_fonts = 0;
draw_image = 0;
break;
case 's':
draw_stipples = 1;
draw_lines = 0;
draw_rects = 0;
draw_fonts = 0;
draw_image = 0;
break;
case 'f':
if (strlen(optarg) <= 0) {
fprintf(stderr, "\nerror: -f option requires an argument\n\n");
usage();
return -1;
}
draw_fonts = 1;
strncpy(msg, optarg, 4096);
draw_lines = 0;
draw_rects = 0;
draw_stipples = 0;
draw_image = 0;
break;
case 'i':
if (strlen(optarg) <= 0) {
fprintf(stderr, "\nerror: -i option requires an argument\n\n");
usage();
return -1;
}
draw_image = 1;
strncpy(image_file, optarg, 255);
draw_lines = 0;
draw_rects = 0;
draw_stipples = 0;
draw_fonts = 0;
break;
case 'h':
usage();
return 0;
break;
case 'v':
printf("xdemo Ver 1.0\n");
return 0;
break;
case 'd':
if (sscanf(optarg, "%d", &g_delay_dur) != 1) {
fprintf(stderr, "\nerror: -d option requires an argument\n\n");
usage();
return -1;
}
break;
case 'z':
if (strlen(optarg) <= 0) {
fprintf(stderr, "\nerror: invalid proxy application specified\n\n");
usage();
return -1;
}
strcpy(proxy_app, optarg);
printf("##### LK_TODO: proxy_app=%s\n", proxy_app);
zero_counters = 1;
break;
case 'o':
if (strcmp(optarg, "jump") == 0) {
scroll_type = SCROLL_JUMP;
}
else if (strcmp(optarg, "smooth1") == 0) {
scroll_type = SCROLL_SMOOTH1;
}
else if (strcmp(optarg, "smooth2") == 0) {
scroll_type = SCROLL_SMOOTH2;
}
else if (strcmp(optarg, "smooth3") == 0) {
scroll_type = SCROLL_SMOOTH3;
}
else if (strcmp(optarg, "smooth4") == 0) {
scroll_type = SCROLL_SMOOTH4;
}
else {
fprintf(stderr, "\ninvalid scroll type specified\n\n");
usage();
return -1;
}
break;
default:
usage();
return -1;
}
}
// must have at least one operation
if ((!draw_lines) && (!draw_rects) && (!draw_stipples) &&
(!draw_fonts) && (!draw_image)) {
usage();
return -1;
}
g_disp = XOpenDisplay(NULL);
if (!g_disp) {
dprint("error opening X display\n");
exit(-1);
}
screenNumber = DefaultScreen(g_disp);
white = WhitePixel(g_disp, screenNumber);
black = BlackPixel(g_disp, screenNumber);
g_win = XCreateSimpleWindow(g_disp,
DefaultRootWindow(g_disp),
50, 50, // origin
g_winWidth, g_winHeight, // size
0, black, // border
white ); // backgd
XMapWindow(g_disp, g_win);
//eventMask = StructureNotifyMask | MapNotify | VisibilityChangeMask;
eventMask = StructureNotifyMask | VisibilityChangeMask;
XSelectInput(g_disp, g_win, eventMask);
g_gc = XCreateGC(g_disp, g_win,
0, // mask of values
NULL ); // array of values
#if 0
do
{
dprint("about to call XNextEvent(...)\n");
XNextEvent(g_disp, &evt);// calls XFlush
dprint("returned from XNextEvent(...)\n");
}
//while(evt.type != MapNotify);
while(evt.type != VisibilityNotify);
#endif
// get access to the screen's color map
colormap = DefaultColormap(g_disp, screenNumber);
// alloc red color
rc = XAllocNamedColor(g_disp, colormap, "red", &g_colors[0], &g_colors[0]);
if (rc == 0) {
printf("XAllocNamedColor - failed to allocated 'red' color.\n");
exit(1);
}
rc = XAllocNamedColor(g_disp, colormap, "green", &g_colors[1], &g_colors[1]);
if (rc == 0) {
printf("XAllocNamedColor - failed to allocated 'green' color.\n");
exit(1);
}
rc = XAllocNamedColor(g_disp, colormap, "blue", &g_colors[2], &g_colors[2]);
if (rc == 0) {
printf("XAllocNamedColor - failed to allocated 'blue' color.\n");
exit(1);
}
rc = XAllocNamedColor(g_disp, colormap, "yellow", &g_colors[3], &g_colors[3]);
if (rc == 0) {
printf("XAllocNamedColor - failed to allocated 'yellow' color.\n");
exit(1);
}
rc = XAllocNamedColor(g_disp, colormap, "orange", &g_colors[4], &g_colors[4]);
if (rc == 0) {
printf("XAllocNamedColor - failed to allocated 'orange' color.\n");
exit(1);
}
if (zero_counters) {
signal_tcp_proxy(proxy_app);
}
if (draw_lines) {
start_timer(&tv);
drawLines(iters);
printf("drew %d lines in %d ms\n", iters, time_elapsed_ms(tv));
}
if (draw_rects) {
start_timer(&tv);
drawRectangles(iters);
printf("drew %d rects in %d ms\n", iters, time_elapsed_ms(tv));
}
if (draw_stipples) {
start_timer(&tv);
// LK_TODO
}
if (draw_fonts) {
start_timer(&tv);
drawFont(iters, msg);
printf("drew %d strings in %d ms\n", iters, time_elapsed_ms(tv));
}
if (draw_image) {
start_timer(&tv);
drawBMP(image_file, scroll_type);
printf("drew BMP in %d ms\n", time_elapsed_ms(tv));
}
if (zero_counters) {
signal_tcp_proxy(proxy_app);
}
eventMask = ButtonPressMask|ButtonReleaseMask;
XSelectInput(g_disp, g_win, eventMask);
do
{
XNextEvent(g_disp, &evt); // calls XFlush()
}
while(evt.type != ButtonRelease);
XDestroyWindow(g_disp, g_win);
XCloseDisplay(g_disp);
return 0;
}
