//-----------------------------------------------------------------------------
void GetStartShapeFromPreviousSearch (SHAPE &StartShape, // out
const SHAPE &PrevShape, // in: final shape from previous search
const SHAPE &MeanShape) // in
{
if (MeanShape.nrows() == PrevShape.nrows())
StartShape = PrevShape;
else if (MeanShape.nrows() < PrevShape.nrows())
{
StartShape = PrevShape;
StartShape.dimKeep(MeanShape.nrows(), 2);
}
else // MeanShape.nrows() > PrevShape.nrows()
{
// The algorithm below is: use points from PrevShape where possible,
// but of a point is unused in PrevShape, use the point from the
// aligned MeanShape instead.
// use "assign" not "=" because dims may be different
StartShape.assign(MeanShape);
SHAPE Combined(PrevShape);
Combined.dimKeep(MeanShape.nrows(), 2);
AlignShape(StartShape, Combined);
const int nRows = PrevShape.nrows();
for (unsigned iRow = 0; iRow < unsigned(nRows); iRow++)
if (fPointUsed(StartShape, iRow))
StartShape.row(iRow) = PrevShape.row(iRow);
}
}
// Our Win32 main
int WINAPI WinMain(HINSTANCE hinstance, HINSTANCE hprev, PSTR cmdline, int ishow)
{
HWND hwnd = NULL; // Handle to our window
MSG msg = {0};
WNDCLASSEX wndclassex = {0};
// Init fields we care about
wndclassex.cbSize = sizeof(WNDCLASSEX); // Always set to size of WNDCLASSEX
wndclassex.style = CS_HREDRAW | CS_VREDRAW;
wndclassex.lpfnWndProc = WinProc;
wndclassex.hInstance = hinstance;
wndclassex.lpszClassName = kClassName;
wndclassex.hCursor = (HCURSOR)LoadImage(NULL, MAKEINTRESOURCE(IDC_ARROW),
IMAGE_CURSOR, 0, 0, LR_SHARED);
RegisterClassEx(&wndclassex); // Register the WNDCLASSEX
RECT rect = { 0, 0, kWinWid, kWinHgt }; // Desired window client rect
DWORD winStyleEx = WS_EX_CLIENTEDGE;
DWORD winStyle = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME;
// Adjust window rect so it gives us our desired client rect when we
// create the window
AdjustWindowRectEx(&rect, winStyle, false, winStyleEx);
// Create the window
hwnd = CreateWindowEx(winStyleEx,
kClassName,
"www.GameTutorials.com -- Render Targets",
winStyle,
CW_USEDEFAULT,
CW_USEDEFAULT,
rect.right - rect.left,
rect.bottom - rect.top,
NULL,
NULL,
hinstance,
NULL);
// Get the client rect and make sure our client is the size we want
GetClientRect(hwnd, &rect);
assert(rect.right == kWinWid && rect.bottom == kWinHgt);
// Init our global 3D object
if(g3D->init(hwnd) == false)
return EXIT_FAILURE; // There's been an error, lets get out of this joint
if(!gBlurTexture1.createRenderTexture(256, 256, D3DFMT_A8R8G8B8))
return false; // Couldn't create a off screen texture to render to
if(!gBlurTexture2.createRenderTexture(256, 256, D3DFMT_A8R8G8B8))
return false; // Couldn't create a off screen texture to render to
if(!gDiffTex.load("texture.jpg"))
return false;
if(!gRenderTarget.init(256, 256, D3DFMT_A8R8G8B8, D3DFMT_D24S8))
return false; // Couldn't create a render texture... Does your video card support this?
Make3x3GuassianDistribution();
// Set up our projection matrix once because it will not change
g3D->setProjMatrix(DEG2RAD(60), 1.0f, 2048.0f);
// We set up our view matrix once because it will never change
g3D->setViewMatrix(kEyePos, CPos(0.0f, 0.0f, 0.0f));
g3D->mShader->SetFloatArray("gEyePos", &kEyePos.x, 3); // Set the camera's eye position
g3D->mShader->SetFloatArray("gBlurWeights", gBlurWeights, 9); // Gaussian blur weights
// Show and update the window
ShowWindow(hwnd, ishow);
UpdateWindow(hwnd);
while(1) // While the app is alive
{
if(PeekMessage(&msg,NULL,0,0,PM_REMOVE)) // If the OS has a message for us
{
if(msg.message == WM_QUIT)
break;
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else if(LockFrameRate()) // Else, if it's time to draw
{
// Render the off screen texture (created directly above) to another
// off screen texture using a Gaussian blur
if(gToggle)
Combined();
else
RenderSobelFilter();
// Render the two textures to the screen
RenderScene();
}
else
Sleep(1); // Otherwise, give the OS some time to process other programs
} // end of while(1)
g3D->deinit(); // Free up the D3D object
UnregisterClass(kClassName,hinstance); // Free up WNDCLASSEX
return EXIT_SUCCESS; // Application was a success
}
