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OpenGL multiple canvas support

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This commit is contained in:
rextimmy 2016-12-14 22:01:18 +10:00
parent efab1299ca
commit 08c0195cba
4 changed files with 60 additions and 28 deletions
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45
Engine/source/gfx/gl/win32/gfxGLDevice.win.cpp
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@ -255,14 +255,6 @@ void GFXGLDevice::init( const GFXVideoMode &mode, PlatformWindow *window )
HDC hdcGL = GetDC( hwnd );
AssertFatal( hdcGL != NULL, "Failed to create device context" );
// Create pixel format descriptor...
PIXELFORMATDESCRIPTOR pfd;
CreatePixelFormat( &pfd, 32, 0, 0, false ); // 32 bit color... We do not need depth or stencil, OpenGL renders into a FBO and then copy the image to window
if( !SetPixelFormat( hdcGL, ChoosePixelFormat( hdcGL, &pfd ), &pfd ) )
{
AssertFatal( false, "GFXGLDevice::init - cannot get the one and only pixel format we check for." );
}
int OGL_MAJOR = 3;
int OGL_MINOR = 2;
@ -330,13 +322,21 @@ U32 GFXGLDevice::getTotalVideoMemory()
//------------------------------------------------------------------------------
GFXWindowTarget *GFXGLDevice::allocWindowTarget( PlatformWindow *window )
GFXWindowTarget *GFXGLDevice::allocWindowTarget(PlatformWindow *window)
{
AssertFatal(!mContext, "");
init(window->getVideoMode(), window);
GFXGLWindowTarget *ggwt = new GFXGLWindowTarget(window, this);
ggwt->registerResourceWithDevice(this);
ggwt->createPixelFormat();
//first window
if (!mContext)
{
init(window->getVideoMode(), window);
ggwt->mSecondaryWindow = false;
}
else
ggwt->mSecondaryWindow = true;
ggwt->mContext = mContext;
AssertFatal(ggwt->mContext, "GFXGLDevice::allocWindowTarget - failed to allocate window target!");
@ -364,15 +364,32 @@ void GFXGLWindowTarget::_setupNewMode()
{
}
void GFXGLWindowTarget::createPixelFormat()
{
HWND hwnd = GETHWND(mWindow);
// Create a device context
HDC hdcGL = GetDC(hwnd);
AssertFatal(hdcGL != NULL, "GFXGLWindowTarget::createPixelFormat() - Failed to create device context");
// Create pixel format descriptor...
PIXELFORMATDESCRIPTOR pfd;
CreatePixelFormat(&pfd, 32, 0, 0, false); // 32 bit color... We do not need depth or stencil, OpenGL renders into a FBO and then copy the image to window
if (!SetPixelFormat(hdcGL, ChoosePixelFormat(hdcGL, &pfd), &pfd))
{
AssertFatal(false, "GFXGLWindowTarget::createPixelFormat() - cannot get the one and only pixel format we check for.");
}
}
void GFXGLWindowTarget::_makeContextCurrent()
{
HWND hwnd = GETHWND(getWindow());
HDC hdc = GetDC(hwnd);
if (!wglMakeCurrent(hdc, (HGLRC)mContext))
{
//HRESULT if needed for debug
//HRESULT hr = HRESULT_FROM_WIN32(GetLastError());
AssertFatal(false, "GFXGLWindowTarget::_makeContextCurrent() - cannot make our context current.");
}
}
}