GFXGLDevice::GFXGLDevice(U32 adapterIndex) :
mAdapterIndex(adapterIndex),
mNeedUpdateVertexAttrib(false),
mCurrentPB(NULL),
mDrawInstancesCount(0),
mCurrentShader( NULL ),
m_mCurrentWorld(true),
m_mCurrentView(true),
mContext(NULL),
mPixelFormat(NULL),
mPixelShaderVersion(0.0f),
mMaxShaderTextures(2),
mMaxFFTextures(2),
mMaxTRColors(1),
mClip(0, 0, 0, 0),
mWindowRT(NULL),
mUseGlMap(true)
{
for(int i = 0; i < VERTEX_STREAM_COUNT; ++i)
{
mCurrentVB[i] = NULL;
mCurrentVB_Divisor[i] = 0;
}
// Initiailize capabilities to false.
memset(&mCapabilities, 0, sizeof(GLCapabilities));
loadGLCore();
GFXGLEnumTranslate::init();
GFXVertexColor::setSwizzle( &Swizzles::rgba );
// OpenGL have native RGB, no need swizzle
mDeviceSwizzle32 = &Swizzles::rgba;
mDeviceSwizzle24 = &Swizzles::rgb;
mTextureManager = new GFXGLTextureManager();
gScreenShot = new ScreenShot();
for(U32 i = 0; i < TEXTURE_STAGE_COUNT; i++)
mActiveTextureType[i] = GL_ZERO;
mNumVertexStream = 2;
for(int i = 0; i < GS_COUNT; ++i)
mModelViewProjSC[i] = NULL;
mOpenglStateCache = new GFXGLStateCache;
}
void GFXGLDevice::init( const GFXVideoMode &mode, PlatformWindow *window )
{
AssertFatal(window, "GFXGLDevice::init - no window specified, can't init device without a window!");
PlatformWindowSDL* sdlWindow = dynamic_cast<PlatformWindowSDL*>(window);
AssertFatal(sdlWindow, "Window is not a valid PlatformWindowSDL object");
// Create OpenGL context
mContext = PlatformGL::CreateContextGL( sdlWindow );
PlatformGL::MakeCurrentGL( sdlWindow, mContext );
loadGLCore();
loadGLExtensions(mContext);
// It is very important that extensions be loaded before we call initGLState()
initGLState();
mProjectionMatrix.identity();
mInitialized = true;
deviceInited();
}
void GFXGLDevice::enumerateAdapters( Vector<GFXAdapter*> &adapterList )
{
// GL_ERROR_CHECK();
WNDCLASS windowclass;
dMemset( &windowclass, 0, sizeof( WNDCLASS ) );
windowclass.lpszClassName = L"GFX-OpenGL";
windowclass.style = CS_OWNDC;
windowclass.lpfnWndProc = DefWindowProc;
windowclass.hInstance = winState.appInstance;
if( !RegisterClass( &windowclass ) )
AssertFatal( false, "Failed to register the window class for the GL test window." );
// Now create a window
HWND hwnd = CreateWindow( L"GFX-OpenGL", L"", WS_POPUP, 0, 0, 640, 480,
NULL, NULL, winState.appInstance, NULL );
AssertFatal( hwnd != NULL, "Failed to create the window for the GL test window." );
// Create a device context
HDC tempDC = GetDC( hwnd );
AssertFatal( tempDC != NULL, "Failed to create device context" );
// Create pixel format descriptor...
PIXELFORMATDESCRIPTOR pfd;
CreatePixelFormat( &pfd, 32, 0, 0, false );
if( !SetPixelFormat( tempDC, ChoosePixelFormat( tempDC, &pfd ), &pfd ) )
AssertFatal( false, "I don't know who's responcible for this, but I want caught..." );
// Create a rendering context!
HGLRC tempGLRC = wglCreateContext( tempDC );
if( !wglMakeCurrent( tempDC, tempGLRC ) )
AssertFatal( false, "I want them caught and killed." );
// Add the GL renderer
loadGLCore();
loadGLExtensions(tempDC);
GFXAdapter *toAdd = new GFXAdapter;
toAdd->mIndex = 0;
const char* renderer = (const char*) glGetString( GL_RENDERER );
AssertFatal( renderer != NULL, "GL_RENDERER returned NULL!" );
if (renderer)
{
dStrcpy(toAdd->mName, renderer);
dStrncat(toAdd->mName, " OpenGL", GFXAdapter::MaxAdapterNameLen);
}
else
dStrcpy(toAdd->mName, "OpenGL");
toAdd->mType = OpenGL;
toAdd->mShaderModel = 0.f;
toAdd->mCreateDeviceInstanceDelegate = mCreateDeviceInstance;
// Enumerate all available resolutions:
DEVMODE devMode;
U32 modeNum = 0;
U32 stillGoing = true;
while ( stillGoing )
{
dMemset( &devMode, 0, sizeof( devMode ) );
devMode.dmSize = sizeof( devMode );
stillGoing = EnumDisplaySettings( NULL, modeNum++, &devMode );
if (( devMode.dmPelsWidth >= 480) && (devMode.dmPelsHeight >= 360 )
&& ( devMode.dmBitsPerPel == 16 || devMode.dmBitsPerPel == 32 ))
{
GFXVideoMode vmAdd;
vmAdd.bitDepth = devMode.dmBitsPerPel;
vmAdd.fullScreen = true;
vmAdd.refreshRate = devMode.dmDisplayFrequency;
vmAdd.resolution.x = devMode.dmPelsWidth;
vmAdd.resolution.y = devMode.dmPelsHeight;
// Only add this resolution if it is not already in the list:
bool alreadyInList = false;
for (Vector<GFXVideoMode>::iterator i = toAdd->mAvailableModes.begin(); i != toAdd->mAvailableModes.end(); i++)
{
if (vmAdd == *i)
{
alreadyInList = true;
break;
}
}
if(alreadyInList)
continue;
toAdd->mAvailableModes.push_back( vmAdd );
}
}
// Add to the list of available adapters.
adapterList.push_back(toAdd);
// Cleanup our window
wglMakeCurrent(NULL, NULL);
wglDeleteContext(tempGLRC);
ReleaseDC(hwnd, tempDC);
DestroyWindow(hwnd);
UnregisterClass(L"GFX-OpenGL", winState.appInstance);
}
void GFXGLDevice::init( const GFXVideoMode &mode, PlatformWindow *window )
{
AssertFatal(window, "GFXGLDevice::init - no window specified, can't init device without a window!");
AssertFatal(dynamic_cast<Win32Window*>(window), "Invalid window class type!");
HWND hwnd = GETHWND(window);
mWindowRT = &static_cast<Win32Window*>(window)->mTarget;
RECT rect;
GetClientRect(hwnd, &rect);
Point2I resolution;
resolution.x = rect.right - rect.left;
resolution.y = rect.bottom - rect.top;
// Create a device context
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;
#if TORQUE_DEBUG
int debugFlag = WGL_CONTEXT_DEBUG_BIT_ARB;
#else
int debugFlag = 0;
#endif
if( gglHasWExtension(ARB_create_context) )
{
int const create_attribs[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, OGL_MAJOR,
WGL_CONTEXT_MINOR_VERSION_ARB, OGL_MINOR,
WGL_CONTEXT_FLAGS_ARB, /*WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB |*/ debugFlag,
WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
//WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
0
};
mContext = wglCreateContextAttribsARB(hdcGL, 0, create_attribs);
if(!mContext)
{
AssertFatal(0,"");
}
}
else
mContext = wglCreateContext( hdcGL );
if( !wglMakeCurrent( hdcGL, (HGLRC)mContext ) )
AssertFatal( false , "GFXGLDevice::init - cannot make our context current. Or maybe we can't create it." );
loadGLCore();
loadGLExtensions(hdcGL);
wglSwapIntervalEXT(0);
// It is very important that extensions be loaded
// before we call initGLState()
initGLState();
mProjectionMatrix.identity();
mInitialized = true;
deviceInited();
}
void GFXGLDevice::enumerateAdapters( Vector<GFXAdapter*> &adapterList )
{
AssertFatal( SDL_WasInit(SDL_INIT_VIDEO), "");
PlatformGL::init(); // for hints about context creation
// Create a dummy window & openGL context so that gl functions can be used here
SDL_Window* tempWindow = SDL_CreateWindow(
"", // window title
SDL_WINDOWPOS_UNDEFINED, // initial x position
SDL_WINDOWPOS_UNDEFINED, // initial y position
640, // width, in pixels
480, // height, in pixels
SDL_WINDOW_OPENGL | SDL_WINDOW_HIDDEN // flags - see below
);
SDL_ClearError();
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
SDL_GLContext tempContext = SDL_GL_CreateContext( tempWindow );
if( !tempContext )
{
const char *err = SDL_GetError();
Con::printf( err );
AssertFatal(0, err );
return;
}
SDL_ClearError();
SDL_GL_MakeCurrent( tempWindow, tempContext );
const char *err = SDL_GetError();
if( err && err[0] )
{
Con::printf( err );
AssertFatal(0, err );
}
// Init GL
loadGLCore();
loadGLExtensions(tempContext);
//check minimun Opengl 3.2
int major, minor;
glGetIntegerv(GL_MAJOR_VERSION, &major);
glGetIntegerv(GL_MINOR_VERSION, &minor);
if( major < 3 || ( major == 3 && minor < 2 ) )
{
return;
}
GFXAdapter *toAdd = new GFXAdapter;
toAdd->mIndex = 0;
const char* renderer = (const char*) glGetString( GL_RENDERER );
AssertFatal( renderer != NULL, "GL_RENDERER returned NULL!" );
if (renderer)
{
dStrcpy(toAdd->mName, renderer);
dStrncat(toAdd->mName, " OpenGL", GFXAdapter::MaxAdapterNameLen);
}
else
dStrcpy(toAdd->mName, "OpenGL");
toAdd->mType = OpenGL;
toAdd->mShaderModel = 0.f;
toAdd->mCreateDeviceInstanceDelegate = mCreateDeviceInstance;
// Enumerate all available resolutions:
EnumerateVideoModes(toAdd->mAvailableModes);
// Add to the list of available adapters.
adapterList.push_back(toAdd);
// Cleanup window & open gl context
SDL_DestroyWindow( tempWindow );
SDL_GL_DeleteContext( tempContext );
}