Show Posts
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
// taken from RenderTarget::Draw and RenderTarget::SetRenderStates
void _preSFML()
{
glMatrixMode(GL_MODELVIEW); glPushMatrix();
glMatrixMode(GL_PROJECTION); glPushMatrix();
glPushAttrib(GL_COLOR_BUFFER_BIT | GL_CURRENT_BIT | GL_ENABLE_BIT |
GL_TEXTURE_BIT | GL_TRANSFORM_BIT | GL_VIEWPORT_BIT);
glDisable(GL_ALPHA_TEST);
glDisable(GL_DEPTH_TEST);
glDisable(GL_LIGHTING);
}
void _postSFML()
{
glMatrixMode(GL_PROJECTION); glPopMatrix();
glMatrixMode(GL_MODELVIEW); glPopMatrix();
glPopAttrib();
}
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <GL/gl.h>
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
void EnableOpenGL(HDC hDC, HGLRC hRC);
void DisableOpenGL(HDC hDC, HGLRC hRC);
volatile bool quit = false;
volatile bool paused = false;
struct GlThreadData
{
HDC hDC;
HGLRC hRC;
};
DWORD WINAPI GlThread(LPVOID arg1)
{
GlThreadData d = *reinterpret_cast<GlThreadData*>(arg1);
HDC hDC = d.hDC;
HGLRC hRC = d.hRC;
float theta = 0.0f;
EnableOpenGL( d.hDC, d.hRC );
glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
while(!quit)
{
glClear( GL_COLOR_BUFFER_BIT );
glPushMatrix();
glScalef(0.9f,0.9f,0.9f);
glRotatef( theta, 0.0f, 0.0f, 1.0f );
glBegin( GL_TRIANGLES );
glColor3f( 1.0f, 0.0f, 0.0f ); glVertex2f( 0.0f, 1.0f );
glColor3f( 0.0f, 1.0f, 0.0f ); glVertex2f( 0.87f, -0.5f );
glColor3f( 0.0f, 0.0f, 1.0f ); glVertex2f( -0.87f, -0.5f );
glEnd();
glPopMatrix();
SwapBuffers( d.hDC );
if(!paused)
theta += 1.0f;
}
DisableOpenGL( d.hDC, d.hRC );
return 0;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int iCmdShow)
{
WNDCLASS wc;
HWND hWnd;
MSG msg;
wc.style = CS_OWNDC;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon( NULL, IDI_APPLICATION );
wc.hCursor = LoadCursor( NULL, IDC_ARROW );
wc.hbrBackground = (HBRUSH)GetStockObject( BLACK_BRUSH );
wc.lpszMenuName = NULL;
wc.lpszClassName = L"MsgPumpThread";
RegisterClass(&wc);
hWnd = CreateWindow(
L"MsgPumpThread", L"Threaded OpenGL / Windows Message Pump",
WS_CAPTION | WS_POPUPWINDOW | WS_VISIBLE,
0, 0, 300, 300,
NULL, NULL, hInstance, NULL );
PIXELFORMATDESCRIPTOR pfd;
int format;
HDC hDC = GetDC( hWnd );
ZeroMemory( &pfd, sizeof( pfd ) );
pfd.nSize = sizeof( pfd );
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 24;
pfd.cAlphaBits = 8;
pfd.cDepthBits = 24;
pfd.cStencilBits = 8;
pfd.iLayerType = PFD_MAIN_PLANE;
format = ChoosePixelFormat( hDC, &pfd );
SetPixelFormat( hDC, format, &pfd );
HGLRC hRC = wglCreateContext( hDC );
GlThreadData gtd = { hDC, hRC };
HANDLE hGlThread;
hGlThread=CreateThread(0,0,&GlThread,>d,0,0);
while(!quit)
{
if(!GetMessage(&msg, NULL, 0, 0))
{
quit = true;
}
else
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
WaitForSingleObject(hGlThread,INFINITE);
wglDeleteContext( hRC );
ReleaseDC( hWnd, hDC );
DestroyWindow( hWnd );
return msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_CREATE:
return 0;
case WM_CLOSE:
PostQuitMessage( 0 );
return 0;
case WM_DESTROY:
return 0;
case WM_KEYDOWN:
switch ( wParam )
{
case VK_SPACE:
paused = !paused;
return 0;
case VK_ESCAPE:
PostQuitMessage(0);
return 0;
}
return 0;
default:
return DefWindowProc( hWnd, message, wParam, lParam );
}
}
void EnableOpenGL(HDC hDC, HGLRC hRC)
{
wglMakeCurrent( hDC, hRC );
}
void DisableOpenGL(HDC hDC, HGLRC hRC)
{
wglMakeCurrent( NULL, NULL );
}