//-----------------------------------------------------------------------------
bool Win32Context::initWin32GLContext(HGLRC share_context, const vl::String& title, const vl::OpenGLContextFormat& fmt, int x, int y, int width, int height)
{
class InOutContract
{
Win32Context* mContext;
public:
bool mOK;
InOutContract(Win32Context* context): mContext(context), mOK(true)
{
cleanup();
}
~InOutContract()
{
if (!mOK)
cleanup();
}
void cleanup()
{
// delete HDC
if (mContext->mHDC)
{
DeleteDC(mContext->mHDC);
mContext->mHDC = NULL;
}
// delete HGLRC
if (mContext->mHGLRC)
{
if ( wglDeleteContext(mContext->mHGLRC) == FALSE )
{
MessageBox(NULL, L"OpenGL context cleanup failed.\n"
L"The handle either doesn't specify a valid context or the context is being used by another thread.",
L"Win32Context::init() error!", MB_OK);
mOK = false;
}
mContext->mHGLRC = NULL;
}
}
} contract(this);
if (!contract.mOK)
return false;
framebuffer()->setWidth(width);
framebuffer()->setHeight(height);
if (!hwnd())
{
MessageBox(NULL, L"Cannot create OpenGL context: null HWND.", L"Win32Context::init() error!", MB_OK);
return contract.mOK = false;
}
setWindowTitle(title);
VL_CHECK(mHDC == NULL);
mHDC = ::GetDC(hwnd());
if (!mHDC)
{
MessageBox(NULL, L"Device context acquisition failed.", L"Win32Context::init() error!", MB_OK);
return contract.mOK = false;
}
int pixel_format_index = vlWin32::choosePixelFormat(fmt);
if (pixel_format_index == -1)
{
MessageBox(NULL, L"No suitable pixel fmt found.", L"Win32Context::init() error!", MB_OK);
return contract.mOK = false;
}
if (SetPixelFormat(mHDC, pixel_format_index, NULL) == FALSE)
{
MessageBox(NULL, L"Pixel fmt setup failed.", L"Win32Context::init() error!", MB_OK);
return contract.mOK = false;
}
// OpenGL rendering context creation
if (wglCreateContextAttribsARB && mContextAttribs.size() > 1)
{
// must be 0-terminated list
VL_CHECK(mContextAttribs.back() == 0);
// Creates an OpenGL 3.x / 4.x context with the specified attributes.
mHGLRC = wglCreateContextAttribsARB(mHDC, 0, &mContextAttribs[0]);
}
else
{
// Creates default OpenGL context
mHGLRC = wglCreateContext(mHDC);
}
if (!mHGLRC)
{
MessageBox(NULL, L"OpenGL rendering context creation failed.", L"Win32Context::init() error!", MB_OK);
return contract.mOK = false;
}
// init GL context and makes it current
// mic fixme: check this also on all the other GUI bindings.
if( !initGLContext() )
return contract.mOK = false;
if (fmt.multisample() && !Has_GL_ARB_multisample)
vl::Log::error("WGL_ARB_multisample not supported.\n");
dispatchInitEvent();
setPosition(x, y);
setSize(width, height);
if (Has_GL_EXT_swap_control)
wglSwapIntervalEXT( fmt.vSync() ? 1 : 0 );
if (share_context)
shareOpenGLResources(share_context);
if (fmt.fullscreen())
setFullscreen(true);
return contract.mOK = true;
}
//-----------------------------------------------------------------------------
bool SDLWindow::initSDLWindow(const vl::String& title, const vl::OpenGLContextFormat& info, int x, int y, int width, int height)
{
if (mScreen || mSDLWindow)
{
vl::Log::error("SDL supports only one window at a time.\n");
VL_TRAP();
return false;
}
framebuffer()->setWidth(width);
framebuffer()->setHeight(height);
mSDLWindow = this;
// init key translation map
for(int i=0; key_translation_vec[i]; i+=2)
key_translation_map[ key_translation_vec[i] ] = (vl::EKey)key_translation_vec[i+1];
// SDL_VIDEO_WINDOW_POS
char win_pos[32] = {0};
sprintf ( win_pos, "SDL_VIDEO_WINDOW_POS=%d,%d", x, y );
SDL_putenv(win_pos);
// setenv("SDL_VIDEO_CENTERED", "YES", 0);
// init SDL
if ( SDL_Init(SDL_INIT_VIDEO) < 0 )
{
printf("Unable to init SDL: %s\n", SDL_GetError());
return false;
}
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, info.rgbaBits().r());
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, info.rgbaBits().g());
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, info.rgbaBits().b());
SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, info.rgbaBits().a());
SDL_GL_SetAttribute(SDL_GL_ACCUM_RED_SIZE, info.accumRGBABits().r());
SDL_GL_SetAttribute(SDL_GL_ACCUM_GREEN_SIZE, info.accumRGBABits().g());
SDL_GL_SetAttribute(SDL_GL_ACCUM_BLUE_SIZE, info.accumRGBABits().b());
SDL_GL_SetAttribute(SDL_GL_ACCUM_ALPHA_SIZE, info.accumRGBABits().a());
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, info.depthBufferBits());
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, info.stencilBufferBits());
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, info.doubleBuffer()?1:0);
SDL_GL_SetAttribute(SDL_GL_STEREO, info.stereo());
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, info.multisample()?1:0);
if (info.multisample())
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, info.multisampleSamples());
SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, info.vSync());
int bpp = SDL_GetVideoInfo()->vfmt->BitsPerPixel;
Uint32 flags = SDL_OPENGL | (info.fullscreen() ? SDL_FULLSCREEN : 0);
width = width !=0 ? width : SDL_GetVideoInfo()->current_w;
height = height !=0 ? height : SDL_GetVideoInfo()->current_h;
mScreen = SDL_SetVideoMode( width, height, bpp, flags );
if (mScreen == 0)
{
vl::Log::print( vl::Say("\n error: SDL_SetVideoMode(%n, %n, %n, %hn) failed: %s\n") << width << height << bpp << flags << SDL_GetError() );
exit(1);
}
// window size problem
int viewport[4];
glGetIntegerv(GL_VIEWPORT, viewport);
VL_CHECK(viewport[0] == 0);
VL_CHECK(viewport[1] == 0);
if (viewport[2] != mScreen->w || viewport[3] != mScreen->h)
{
vl::Log::print( vl::Say("\n warning: OpenGL reported %nx%n as video size but SDL says %nx%n\n") << viewport[2] << viewport[3] << mScreen->w << mScreen->h );
VL_TRAP()
}
