29#include "gdk/win32/gdkwin32.h"
37struct TGWin32GLManager::TGLContext {
67 CDCGuard(
const CDCGuard &);
71 explicit CDCGuard(HDC hDC) : fHDC(hDC)
90 WDCGuard(
const WDCGuard &);
94 WDCGuard(HDC hDC,
Window_t winID) : fHDC(hDC), fWinID(winID)
99 ReleaseDC((HWND)GDK_DRAWABLE_XID((GdkWindow *)fWinID), fHDC);
112 BMPGuard(
const BMPGuard &);
116 explicit BMPGuard(HBITMAP bmp) : fBMP(bmp)
134 WGLGuard(
const WGLGuard &);
138 explicit WGLGuard(HGLRC glrc) : fCtx(glrc)
143 wglDeleteContext(fCtx);
152const PIXELFORMATDESCRIPTOR
172const PIXELFORMATDESCRIPTOR
191class TGWin32GLManager::TGWin32GLImpl {
193 TGWin32GLImpl() : fNextFreeContext(0)
196 std::deque<TGLContext> fGLContexts;
200TGWin32GLManager::TGWin32GLImpl::~TGWin32GLImpl()
203 std::deque<TGLContext>::size_type i = 0;
205 for (; i < fGLContexts.size(); ++i) {
208 if (ctx.fGLContext) {
210 ::Warning(
"TGWin32GLManager::~TGLWin32GLManager",
"You forget to destroy gl-context %d\n", i);
212 if (ctx.fPixmapIndex != -1) {
213 gVirtualX->SelectWindow(ctx.fPixmapIndex);
217 wglDeleteContext(ctx.fGLContext);
218 ReleaseDC((HWND)GDK_DRAWABLE_XID((GdkWindow *)
gVirtualX->GetWindowID(ctx.fWindowIndex)),
231 gROOT->GetListOfSpecials()->AddLast(
this);
256 HDC hDC = GetWindowDC((HWND)GDK_DRAWABLE_XID((GdkWindow *)winID));
259 Error(
"CreateGLContext",
"GetWindowDC failed\n");
263 WDCGuard dcGuard(hDC, winID);
267 HGLRC glCtx = wglCreateContext(hDC);
270 Error(
"CreateGLContext",
"wglCreateContext failed\n");
274 TGLContext newDevice = {winInd, -1, hDC, 0, glCtx};
275 PIXELFORMATDESCRIPTOR testFormat = {};
276 DescribePixelFormat(hDC, pixFormat,
sizeof testFormat, &testFormat);
277 newDevice.fHighColor = testFormat.cColorBits < 24 ?
kTRUE :
kFALSE;
279 if (TGLContext *ctx =
fPimpl->fNextFreeContext) {
280 Int_t ind = ctx->fWindowIndex;
281 fPimpl->fNextFreeContext =
fPimpl->fNextFreeContext->fNextFreeContext;
286 WGLGuard wglGuard(glCtx);
287 fPimpl->fGLContexts.push_back(newDevice);
290 return fPimpl->fGLContexts.size() - 1;
293 Error(
"CreateGLContext",
"SetPixelFormat failed\n");
295 Error(
"CreateGLContext",
"ChoosePixelFormat failed\n");
305 HDC dibDC = CreateCompatibleDC(0);
308 Error(
"CreateDIB",
"CreateCompatibleDC failed\n");
312 CDCGuard dcGuard(dibDC);
314 BITMAPINFOHEADER bmpHeader = {
sizeof bmpHeader, ctx.fW, ctx.fH, 1, 32, BI_RGB};
316 HBITMAP hDIB = CreateDIBSection(dibDC, (BITMAPINFO*)&bmpHeader, DIB_RGB_COLORS, &bmpCnt, 0, 0);
319 Error(
"CreateDIB",
"CreateDIBSection failed\n");
323 BMPGuard bmpGuard(hDIB);
327 ctx.fDIBData =
static_cast<UChar_t *
>(bmpCnt);
338 TGLContext &ctx =
fPimpl->fGLContexts[ctxInd];
339 TGLContext newCtx = {ctx.fWindowIndex, -1, ctx.fDC, 0, ctx.fGLContext, w,
h,
x,
y, ctx.fHighColor};
354 TGLContext &ctx =
fPimpl->fGLContexts[ctxInd];
356 if (ctx.fPixmapIndex != -1)
358 TGLContext newCtx = {ctx.fWindowIndex, -1, ctx.fDC, 0, ctx.fGLContext, w,
h,
x,
y, ctx.fHighColor};
361 gVirtualX->SelectWindow(ctx.fPixmapIndex);
365 Error(
"ResizeOffScreenDevice",
"Error trying to create new DIB\n");
387 if (
fPimpl->fGLContexts[pixInd].fPixmapIndex != -1)
388 fPimpl->fGLContexts[pixInd].fDirect = isDirect;
395 TGLContext &ctx =
fPimpl->fGLContexts[ctxInd];
397 if (ctx.fPixmapIndex != -1) {
398 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
399 glReadBuffer(GL_BACK);
400 glReadPixels(0, 0, ctx.fW, ctx.fH, GL_BGRA_EXT, GL_UNSIGNED_BYTE, ctx.fDIBData);
408 return fPimpl->fGLContexts[ctxInd].fPixmapIndex;
415 TGLContext &ctx =
fPimpl->fGLContexts[ctxInd];
416 return (
Bool_t)wglMakeCurrent(ctx.fDC, ctx.fGLContext);
423 TGLContext &ctx =
fPimpl->fGLContexts[ctxInd];
425 if (ctx.fPixmapIndex == -1) {
427 wglSwapLayerBuffers(ctx.fDC, WGL_SWAP_MAIN_PLANE);
428 }
else if (ctx.fDirect) {
430 HDC hDC = CreateCompatibleDC(0);
433 Error(
"Flush",
"CreateCompatibleDC failed\n");
437 HBITMAP oldDIB = (HBITMAP)SelectObject(hDC, ctx.fHBitmap);
439 if (!BitBlt(ctx.fDC, ctx.fX, ctx.fY, ctx.fW, ctx.fH, hDC, 0, 0, SRCCOPY))
442 SelectObject(hDC, oldDIB);
452 TGLContext &ctx =
fPimpl->fGLContexts[ctxInd];
454 if (ctx.fPixmapIndex != -1) {
455 gVirtualX->SelectWindow(ctx.fPixmapIndex);
457 ctx.fPixmapIndex = -1;
460 wglDeleteContext(ctx.fGLContext);
462 ReleaseDC((HWND)GDK_DRAWABLE_XID((GdkWindow *)
gVirtualX->GetWindowID(ctx.fWindowIndex)),
465 ctx.fWindowIndex = ctxInd;
466 ctx.fNextFreeContext =
fPimpl->fNextFreeContext;
467 fPimpl->fNextFreeContext = &ctx;
474 TGLContext &ctx =
fPimpl->fGLContexts[ctxInd];
476 if (ctx.fPixmapIndex != -1) {
479 viewport[2] = ctx.fW;
480 viewport[3] = ctx.fH;
502 return manip->
Select(*camera, *rect, *sceneBox);
533 return fPimpl->fGLContexts[ctxInd].fHighColor;
void Warning(const char *location, const char *msgfmt,...)
const PIXELFORMATDESCRIPTOR doubleBufferDesc
const PIXELFORMATDESCRIPTOR singleScreenDesc
Binding & operator=(OUT(*fun)(void))
R__EXTERN TGLManager *(* gPtr2GLManager)()
Concrete class describing an orientated (free) or axis aligned box of 8 vertices.
Abstract base camera class - concrete classes for orthographic and perspective cameras derive from it...
This class encapsulates window-system specific information about a GL-context and alows their proper ...
Viewport (pixel base) 2D rectangle class.
static TGLManager * ProxyObject()
Int_t InitGLWindow(Window_t winID)
Int_t CreateGLContext(Int_t winInd)
winInd is TGWin32 index, returned by previous call gGLManager->InitGLWindow returns descripto (index)...
Bool_t ResizeOffScreenDevice(Int_t devInd, Int_t x, Int_t y, UInt_t w, UInt_t h)
Create new DIB if needed.
Bool_t PlotSelected(TVirtualGLPainter *plot, Int_t px, Int_t py)
void PaintSingleObject(TVirtualGLPainter *)
void PrintViewer(TVirtualViewer3D *vv)
Bool_t CreateDIB(TGLContext &ctx) const
Create DIB section to read GL buffer into.
Int_t GetVirtualXInd(Int_t devInd)
void PanObject(TVirtualGLPainter *o, Int_t x, Int_t y)
void DeleteGLContext(Int_t devInd)
void ExtractViewport(Int_t devInd, Int_t *vp)
void SelectOffScreenDevice(Int_t devInd)
void MarkForDirectCopy(Int_t devInd, Bool_t)
Bool_t MakeCurrent(Int_t devInd)
void ReadGLBuffer(Int_t devInd)
Bool_t AttachOffScreenDevice(Int_t ctxInd, Int_t x, Int_t y, UInt_t w, UInt_t h)
Bool_t HighColorFormat(Int_t ctx)
char * GetPlotInfo(TVirtualGLPainter *plot, Int_t px, Int_t py)
Bool_t SelectManip(TVirtualGLManip *manip, const TGLCamera *camera, const TGLRect *rect, const TGLBoundingBox *sceneBox)
virtual void Error(const char *method, const char *msgfmt,...) const
Issue error message.
virtual Bool_t Select(const TGLCamera &camera, const TGLRect &rect, const TGLBoundingBox &sceneBox)=0
virtual Bool_t PlotSelected(Int_t px, Int_t py)=0
virtual char * GetPlotInfo(Int_t px, Int_t py)=0
virtual void Pan(Int_t px, Int_t py)=0
Abstract 3D shapes viewer.
virtual void PrintObjects()