Framebuffer.cpp revision dcb33fa4e1aae96f9a34ec993e8b29dc501a3103
c869993e79c1eafbec61a56bf6cea848fe754c71xy * VBox frontends: VBoxSDL (simple frontend based on SDL):
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Implementation of VBoxSDLFB (SDL framebuffer) class
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Copyright (C) 2006-2012 Oracle Corporation
c869993e79c1eafbec61a56bf6cea848fe754c71xy * This file is part of VirtualBox Open Source Edition (OSE), as
c869993e79c1eafbec61a56bf6cea848fe754c71xy * available from http://www.virtualbox.org. This file is free software;
c869993e79c1eafbec61a56bf6cea848fe754c71xy * you can redistribute it and/or modify it under the terms of the GNU
c869993e79c1eafbec61a56bf6cea848fe754c71xy * General Public License (GPL) as published by the Free Software
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Foundation, in version 2 as it comes in the "COPYING" file of the
c869993e79c1eafbec61a56bf6cea848fe754c71xy * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
c869993e79c1eafbec61a56bf6cea848fe754c71xy * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
c869993e79c1eafbec61a56bf6cea848fe754c71xy# define RT_MAX(Value1, Value2) ((Value1) >= (Value2) ? (Value1) : (Value2))
c869993e79c1eafbec61a56bf6cea848fe754c71xyusing namespace com;
c869993e79c1eafbec61a56bf6cea848fe754c71xyNS_IMPL_THREADSAFE_ISUPPORTS2_CI(VBoxSDLFBOverlay, IFramebufferOverlay, IFramebuffer)
c869993e79c1eafbec61a56bf6cea848fe754c71xy/* function pointers */
c869993e79c1eafbec61a56bf6cea848fe754c71xyDECLSPEC TTF_Font* (SDLCALL *pTTF_OpenFont)(const char *file, int ptsize);
c869993e79c1eafbec61a56bf6cea848fe754c71xyDECLSPEC SDL_Surface* (SDLCALL *pTTF_RenderUTF8_Solid)(TTF_Font *font, const char *text, SDL_Color fg);
c869993e79c1eafbec61a56bf6cea848fe754c71xyDECLSPEC SDL_Surface* (SDLCALL *pTTF_RenderUTF8_Blended)(TTF_Font *font, const char *text, SDL_Color fg);
c869993e79c1eafbec61a56bf6cea848fe754c71xy#endif /* VBOX_SECURELABEL */
c869993e79c1eafbec61a56bf6cea848fe754c71xystatic bool gfSdlInitialized = false; /**< if SDL was initialized */
c869993e79c1eafbec61a56bf6cea848fe754c71xystatic SDL_Surface *gWMIcon = NULL; /**< the application icon */
c869993e79c1eafbec61a56bf6cea848fe754c71xystatic RTNATIVETHREAD gSdlNativeThread = NIL_RTNATIVETHREAD; /**< the SDL thread */
c869993e79c1eafbec61a56bf6cea848fe754c71xy// Constructor / destructor
c869993e79c1eafbec61a56bf6cea848fe754c71xy * SDL framebuffer constructor. It is called from the main
c869993e79c1eafbec61a56bf6cea848fe754c71xy * (i.e. SDL) thread. Therefore it is safe to use SDL calls
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param fFullscreen flag whether we start in fullscreen mode
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param fResizable flag whether the SDL window should be resizable
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param fShowSDLConfig flag whether we print out SDL settings
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param fKeepHostRes flag whether we switch the host screen resolution
c869993e79c1eafbec61a56bf6cea848fe754c71xy * when switching to fullscreen or not
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param iFixedWidth fixed SDL width (-1 means not set)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param iFixedHeight fixed SDL height (-1 means not set)
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Start with standard screen dimensions. */
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsg(rc == VINF_SUCCESS, ("Error from RTCritSectInit!\n"));
c869993e79c1eafbec61a56bf6cea848fe754c71xy HRESULT hr = CoCreateFreeThreadedMarshaler(this, //GetControllingUnknown(),
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* memorize the thread that inited us, that's the SDL thread */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* default to DirectX if nothing else set */
c869993e79c1eafbec61a56bf6cea848fe754c71xy// _putenv("SDL_VIDEODRIVER=windib");
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* On some X servers the mouse is stuck inside the bottom right corner.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * See http://wiki.clug.org.za/wiki/QEMU_mouse_not_working */
c869993e79c1eafbec61a56bf6cea848fe754c71xy int rc = SDL_InitSubSystem(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_NOPARACHUTE);
c869993e79c1eafbec61a56bf6cea848fe754c71xy if (rc != 0)
c869993e79c1eafbec61a56bf6cea848fe754c71xy return false;
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* output what SDL is capable of */
c869993e79c1eafbec61a56bf6cea848fe754c71xy " Hardware surface support: %s\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy " Window manager available: %s\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy " Screen to screen blits accelerated: %s\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy " Screen to screen colorkey blits accelerated: %s\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy " Screen to screen alpha blits accelerated: %s\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy " Memory to screen blits accelerated: %s\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy " Memory to screen colorkey blits accelerated: %s\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy " Memory to screen alpha blits accelerated: %s\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy " Color fills accelerated: %s\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy " Video memory in kilobytes: %d\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy " Optimal bpp mode: %d\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy "SDL video driver: %s\n",
c869993e79c1eafbec61a56bf6cea848fe754c71xy gWMIcon = SDL_AllocSurface(SDL_SWSURFACE, 64, 64, 24, 0xff, 0xff00, 0xff0000, 0);
c869993e79c1eafbec61a56bf6cea848fe754c71xy /** @todo make it as simple as possible. No PNM interpreter here... */
c869993e79c1eafbec61a56bf6cea848fe754c71xy memcpy(gWMIcon->pixels, g_abIco64x01+32, g_cbIco64x01-32);
c869993e79c1eafbec61a56bf6cea848fe754c71xy return true;
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Terminate SDL
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @remarks must be called from the SDL thread!
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsg(gSdlNativeThread == RTThreadNativeSelf(), ("Wrong thread! SDL is not threadsafe!\n"));
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns the current framebuffer width in pixels.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param width Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns the current framebuffer height in pixels.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param height Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Return the current framebuffer color depth.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param bitsPerPixel Address of result variable
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFB::COMGETTER(BitsPerPixel)(ULONG *bitsPerPixel)
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* get the information directly from the surface in use */
c869993e79c1eafbec61a56bf6cea848fe754c71xy *bitsPerPixel = (ULONG)(mSurfVRAM ? mSurfVRAM->format->BitsPerPixel : 0);
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Return the current framebuffer line size in bytes.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param lineSize Address of result variable.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFB::COMGETTER(BytesPerLine)(ULONG *bytesPerLine)
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* get the information directly from the surface */
c869993e79c1eafbec61a56bf6cea848fe754c71xy *bytesPerLine = (ULONG)(mSurfVRAM ? mSurfVRAM->pitch : 0);
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFB::COMGETTER(PixelFormat) (ULONG *pixelFormat)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns by how many pixels the guest should shrink its
c869993e79c1eafbec61a56bf6cea848fe754c71xy * video mode height values.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param heightReduction Address of result variable.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFB::COMGETTER(HeightReduction)(ULONG *heightReduction)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns a pointer to an alpha-blended overlay used for displaying status
c869993e79c1eafbec61a56bf6cea848fe754c71xy * icons above the framebuffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param aOverlay The overlay framebuffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFB::COMGETTER(Overlay)(IFramebufferOverlay **aOverlay)
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Not yet implemented */
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns handle of window where framebuffer context is being drawn
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param winId Handle of associated window.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Notify framebuffer of an update.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param x Update region upper left corner x value.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param y Update region upper left corner y value.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param w Update region width in pixels.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param h Update region height in pixels.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param finished Address of output flag whether the update
c869993e79c1eafbec61a56bf6cea848fe754c71xy * could be fully processed in this call (which
c869993e79c1eafbec61a56bf6cea848fe754c71xy * has to return immediately) or VBox should wait
c869993e79c1eafbec61a56bf6cea848fe754c71xy * for a call to the update complete API before
c869993e79c1eafbec61a56bf6cea848fe754c71xy * continuing with display updates.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * The input values are in guest screen coordinates.
c869993e79c1eafbec61a56bf6cea848fe754c71xy LogFlow(("VBoxSDLFB::NotifyUpdate: x = %d, y = %d, w = %d, h = %d\n",
c869993e79c1eafbec61a56bf6cea848fe754c71xy x, y, w, h));
c869993e79c1eafbec61a56bf6cea848fe754c71xy * SDL does not allow us to make this call from any other thread than
c869993e79c1eafbec61a56bf6cea848fe754c71xy * the main SDL thread (which initialized the video mode). So we have
c869993e79c1eafbec61a56bf6cea848fe754c71xy * to send an event to the main SDL thread and process it there. For
c869993e79c1eafbec61a56bf6cea848fe754c71xy * sake of simplicity, we encode all information in the event parameters.
c869993e79c1eafbec61a56bf6cea848fe754c71xy // 16 bit is enough for coordinates
c869993e79c1eafbec61a56bf6cea848fe754c71xy#else /* !VBOXSDL_WITH_X11 */
c869993e79c1eafbec61a56bf6cea848fe754c71xy#endif /* !VBOXSDL_WITH_X11 */
c869993e79c1eafbec61a56bf6cea848fe754c71xy LogFlow(("NotifyUpdateImage: %d,%d %dx%d\n", aX, aY, aWidth, aHeight));
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Copy to mSurfVRAM. */
c869993e79c1eafbec61a56bf6cea848fe754c71xy const uint32_t Rmask = 0x00FF0000, Gmask = 0x0000FF00, Bmask = 0x000000FF, Amask = 0;
c869993e79c1eafbec61a56bf6cea848fe754c71xy SDL_Surface *surfSrc = SDL_CreateRGBSurfaceFrom(image.raw(), aWidth, aHeight, 32, aWidth * 4,
c869993e79c1eafbec61a56bf6cea848fe754c71xy gpDisplay->QuerySourceBitmap(aScreenId, pSourceBitmap.asOutParam());
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Disable screen updates. */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Save the new bitmap. */
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns whether we like the given video mode.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param width video mode width in pixels
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param height video mode height in pixels
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param bpp video mode bit depth in bits per pixel
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param supported pointer to result variable
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFB::VideoModeSupported(ULONG width, ULONG height, ULONG bpp, BOOL *supported)
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* are constraints set? */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* nope, we don't want that (but still don't freak out if it is set) */
c869993e79c1eafbec61a56bf6cea848fe754c71xy printf("VBoxSDL::VideoModeSupported: we refused mode %dx%dx%d\n", width, height, bpp);
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* anything will do */
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFB::GetVisibleRegion(BYTE *aRectangles, ULONG aCount,
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFB::SetVisibleRegion(BYTE *aRectangles, ULONG aCount)
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFB::ProcessVHWACommand(BYTE *pCommand)
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFB::Notify3DEvent(ULONG uType, ComSafeArrayIn(BYTE, aData))
c869993e79c1eafbec61a56bf6cea848fe754c71xy// Internal public methods
c869993e79c1eafbec61a56bf6cea848fe754c71xy/* This method runs on the main SDL thread. */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Disable screen updates. */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Do nothing. Change event already processed. */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Release the current bitmap and keep the pending one. */
c869993e79c1eafbec61a56bf6cea848fe754c71xy gpDisplay->SetFramebufferUpdateMode(aScreenId, FramebufferUpdateMode_NotifyUpdateImage);
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Method that does the actual resize of the guest framebuffer and
c869993e79c1eafbec61a56bf6cea848fe754c71xy * then changes the SDL framebuffer setup.
c869993e79c1eafbec61a56bf6cea848fe754c71xy LogFlowFunc (("mGuestXRes: %d, mGuestYRes: %d\n", mGuestXRes, mGuestYRes));
c869993e79c1eafbec61a56bf6cea848fe754c71xy ("Wrong thread! SDL is not threadsafe!\n"));
c869993e79c1eafbec61a56bf6cea848fe754c71xy const uint32_t Rmask = 0x00FF0000, Gmask = 0x0000FF00, Bmask = 0x000000FF, Amask = 0;
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* first free the current surface */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Create a source surface from the source bitmap. */
c869993e79c1eafbec61a56bf6cea848fe754c71xy mSurfVRAM = SDL_CreateRGBSurfaceFrom(mPtrVRAM, mGuestXRes, mGuestYRes, mBitsPerPixel,
c869993e79c1eafbec61a56bf6cea848fe754c71xy mSurfVRAM = SDL_CreateRGBSurface(SDL_SWSURFACE, mGuestXRes, mGuestYRes, mBitsPerPixel,
c869993e79c1eafbec61a56bf6cea848fe754c71xy LogFlow(("VBoxSDL:: created VRAM surface %p\n", mSurfVRAM));
c869993e79c1eafbec61a56bf6cea848fe754c71xy LogFlow(("VBoxSDL:: the same resolution requested, skipping the resize.\n"));
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* now adjust the SDL resolution */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Enable screen updates. */
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Sets SDL video mode. This is independent from guest video
c869993e79c1eafbec61a56bf6cea848fe754c71xy * mode changes.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @remarks Must be called from the SDL thread!
c869993e79c1eafbec61a56bf6cea848fe754c71xy * We request a hardware surface from SDL so that we can perform
c869993e79c1eafbec61a56bf6cea848fe754c71xy * accelerated system memory to VRAM blits. The way video handling
c869993e79c1eafbec61a56bf6cea848fe754c71xy * works it that on the one hand we have the screen surface from SDL
c869993e79c1eafbec61a56bf6cea848fe754c71xy * and on the other hand we have a software surface that we create
c869993e79c1eafbec61a56bf6cea848fe754c71xy * using guest VRAM memory for linear modes and using SDL allocated
c869993e79c1eafbec61a56bf6cea848fe754c71xy * system memory for text and non linear graphics modes. We never
c869993e79c1eafbec61a56bf6cea848fe754c71xy * directly write to the screen surface but always use SDL blitting
c869993e79c1eafbec61a56bf6cea848fe754c71xy * functions to blit from our system memory surface to the VRAM.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Therefore, SDL can take advantage of hardware acceleration.
c869993e79c1eafbec61a56bf6cea848fe754c71xy int sdlFlags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
c869993e79c1eafbec61a56bf6cea848fe754c71xy#ifndef RT_OS_OS2 /* doesn't seem to work for some reason... */
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Now we have to check whether there are video mode restrictions
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Get available fullscreen/hardware modes */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* -1 means that any mode is possible (usually non fullscreen) */
c869993e79c1eafbec61a56bf6cea848fe754c71xy * according to the SDL documentation, the API guarantees that
c869993e79c1eafbec61a56bf6cea848fe754c71xy * the modes are sorted from larger to smaller, so we just
c869993e79c1eafbec61a56bf6cea848fe754c71xy * take the first entry as the maximum.
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* no restriction */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* reset the centering offsets */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* we either have a fixed SDL resolution or we take the guest's */
c869993e79c1eafbec61a56bf6cea848fe754c71xy newHeight = RT_MIN(mGuestYRes + mLabelHeight, mMaxScreenHeight);
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* we don't have any extra space by default */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* create new window */
c869993e79c1eafbec61a56bf6cea848fe754c71xy RTStrPrintf(szTitle, sizeof(szTitle), "SDL window %d", mScreenId);
c869993e79c1eafbec61a56bf6cea848fe754c71xy SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTDISCARD) < 0)
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* resize current window */
c869993e79c1eafbec61a56bf6cea848fe754c71xy mTexture = SDL_CreateTexture(format, access, newWidth, newHeight);
c869993e79c1eafbec61a56bf6cea848fe754c71xy int w, h, bpp;
c869993e79c1eafbec61a56bf6cea848fe754c71xy if (SDL_QueryTexture(mTexture, &format, NULL, &w, &h) < 0)
c869993e79c1eafbec61a56bf6cea848fe754c71xy if (!SDL_PixelFormatEnumToMasks(format, &bpp, &Rmask, &Gmask, &Bmask, &Amask))
c869993e79c1eafbec61a56bf6cea848fe754c71xy if (SDL_QueryTexturePixels(mTexture, &pixels, &pitch) == 0)
c869993e79c1eafbec61a56bf6cea848fe754c71xy mScreen = SDL_CreateRGBSurfaceFrom(pixels, w, h, bpp, pitch,
c869993e79c1eafbec61a56bf6cea848fe754c71xy mScreen = SDL_CreateRGBSurface(0, w, h, bpp, Rmask, Gmask, Bmask, Amask);
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Now set the screen resolution and get the surface pointer
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @todo BPP is not supported!
c869993e79c1eafbec61a56bf6cea848fe754c71xy mScreen = SDL_SetVideoMode(newWidth, newHeight, 0, sdlFlags);
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Set the Window ID. Currently used for OpenGL accelerated guests.
c869993e79c1eafbec61a56bf6cea848fe754c71xy# if defined (RT_OS_WINDOWS)
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* XXX ignore this for other architectures */
c869993e79c1eafbec61a56bf6cea848fe754c71xy * For non fixed SDL resolution, the above call tried to add the label height
c869993e79c1eafbec61a56bf6cea848fe754c71xy * to the guest height. If it worked, we have an offset. If it didn't the below
c869993e79c1eafbec61a56bf6cea848fe754c71xy * code will try again with the original guest resolution.
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* if it didn't work, then we have to go for the original resolution and paint over the guest */
c869993e79c1eafbec61a56bf6cea848fe754c71xy mScreen = SDL_SetVideoMode(newWidth, newHeight - mLabelHeight, 0, sdlFlags);
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* we now have some extra space */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* in case the guest resolution is small enough, we do have a top offset */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* we also might have to center the guest picture */
c869993e79c1eafbec61a56bf6cea848fe754c71xy mCenterYOffset = (mFixedSDLHeight - (mGuestYRes + mLabelHeight)) / 2;
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsg(mScreen, ("Error: SDL_SetVideoMode failed!\n"));
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* inform the UI code */
c869993e79c1eafbec61a56bf6cea848fe754c71xy RTPrintf("Resized to %dx%d, screen surface type: %s\n", mScreen->w, mScreen->h,
c869993e79c1eafbec61a56bf6cea848fe754c71xy ((mScreen->flags & SDL_HWSURFACE) == 0) ? "software" : "hardware");
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Update specified framebuffer area. The coordinates can either be
c869993e79c1eafbec61a56bf6cea848fe754c71xy * relative to the guest framebuffer or relative to the screen.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @remarks Must be called from the SDL thread on Linux!
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param x left column
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param y top row
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param w width in pixels
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param h height in pixels
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param fGuestRelative flag whether the above values are guest relative or screen relative;
c869993e79c1eafbec61a56bf6cea848fe754c71xyvoid VBoxSDLFB::update(int x, int y, int w, int h, bool fGuestRelative)
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsg(gSdlNativeThread == RTThreadNativeSelf(), ("Wrong thread! SDL is not threadsafe!\n"));
c869993e79c1eafbec61a56bf6cea848fe754c71xy Log(("Updates %d, %d,%d %dx%d\n", mfUpdates, x, y, w, h));
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* the source and destination rectangles */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* this is how many pixels we have to cut off from the height for this specific blit */
c869993e79c1eafbec61a56bf6cea848fe754c71xy bool fPaintLabel = false;
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* if we have a label and no space for it, we have to cut off a bit */
c869993e79c1eafbec61a56bf6cea848fe754c71xy if (y < (int)mLabelHeight)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * If we get a SDL window relative update, we
c869993e79c1eafbec61a56bf6cea848fe754c71xy * just perform a full screen update to keep things simple.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @todo improve
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* repaint the label if necessary */
c869993e79c1eafbec61a56bf6cea848fe754c71xy if (y < (int)mLabelHeight)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Destination rectangle is just offset by the label height.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * There are two cases though: label height is added to the
c869993e79c1eafbec61a56bf6cea848fe754c71xy * guest resolution (mTopOffset == mLabelHeight; yCutoffGuest == 0)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * or the label cuts off a portion of the guest screen (mTopOffset == 0;
c869993e79c1eafbec61a56bf6cea848fe754c71xy * yCutoffGuest >= 0)
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl dstRect.y = RT_MAX(mLabelHeight, y + yCutoffGuest + mTopOffset) + mCenterYOffset;
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl dstRect.y = y + yCutoffGuest + mTopOffset + mCenterYOffset;
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Now we just blit
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* hardware surfaces don't need update notifications */
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertRelease(mRenderInfo.flags & SDL_RENDERER_PRESENTCOPY);
c869993e79c1eafbec61a56bf6cea848fe754c71xy SDL_UpdateRect(mScreen, dstRect.x, dstRect.y, dstRect.w, dstRect.h);
c869993e79c1eafbec61a56bf6cea848fe754c71xy paintSecureLabel(0, 0, 0, 0, false);
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl * Repaint the whole framebuffer
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl * @remarks Must be called from the SDL thread!
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsg(gSdlNativeThread == RTThreadNativeSelf(), ("Wrong thread! SDL is not threadsafe!\n"));
c869993e79c1eafbec61a56bf6cea848fe754c71xy update(0, 0, mScreen->w, mScreen->h, false /* fGuestRelative */);
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Toggle fullscreen mode
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @remarks Must be called from the SDL thread!
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl AssertMsg(gSdlNativeThread == RTThreadNativeSelf(), ("Wrong thread! SDL is not threadsafe!\n"));
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl LogFlow(("VBoxSDLFB::SetFullscreen: fullscreen: %d\n", fFullscreen));
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* only change the SDL resolution, do not touch the guest framebuffer */
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Return the geometry of the host. This isn't very well tested but it seems
c869993e79c1eafbec61a56bf6cea848fe754c71xy * to work at least on Linux hosts.
c869993e79c1eafbec61a56bf6cea848fe754c71xyvoid VBoxSDLFB::getFullscreenGeometry(uint32_t *width, uint32_t *height)
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* Get available fullscreen/hardware modes */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* -1 means that any mode is possible (usually non fullscreen) */
c869993e79c1eafbec61a56bf6cea848fe754c71xy * According to the SDL documentation, the API guarantees that the modes
c869993e79c1eafbec61a56bf6cea848fe754c71xy * are sorted from larger to smaller, so we just take the first entry as
c869993e79c1eafbec61a56bf6cea848fe754c71xy * the maximum.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * XXX Crude Xinerama hack :-/
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Setup the secure labeling parameters
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns VBox status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param height height of the secure label area in pixels
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param font file path fo the TrueType font file
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param pointsize font size in points
c869993e79c1eafbec61a56bf6cea848fe754c71xyint VBoxSDLFB::initSecureLabel(uint32_t height, char *font, uint32_t pointsize, uint32_t labeloffs)
c869993e79c1eafbec61a56bf6cea848fe754c71xy LogFlow(("VBoxSDLFB:initSecureLabel: new offset: %d pixels, new font: %s, new pointsize: %d\n",
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsgFailed(("Failed to open TTF font file %s\n", font));
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Set the secure label text and repaint the label
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param text UTF-8 string of new label
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @remarks must be called from the SDL thread!
c869993e79c1eafbec61a56bf6cea848fe754c71xy paintSecureLabel(0, 0, 0, 0, true);
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Sets the secure label background color.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param colorFG encoded RGB value for text
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param colorBG encored RGB value for background
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @remarks must be called from the SDL thread!
c869993e79c1eafbec61a56bf6cea848fe754c71xyvoid VBoxSDLFB::setSecureLabelColor(uint32_t colorFG, uint32_t colorBG)
c869993e79c1eafbec61a56bf6cea848fe754c71xy paintSecureLabel(0, 0, 0, 0, true);
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Paint the secure label if required
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param fForce Force the repaint
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @remarks must be called from the SDL thread!
c869993e79c1eafbec61a56bf6cea848fe754c71xyvoid VBoxSDLFB::paintSecureLabel(int x, int y, int w, int h, bool fForce)
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsg(gSdlNativeThread == RTThreadNativeSelf(), ("Wrong thread! SDL is not threadsafe!\n"));
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* only when the function is present */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* check if we can skip the paint */
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* first fill the background */
c869993e79c1eafbec61a56bf6cea848fe754c71xy SDL_Rect rect = {0, 0, (Uint16)mScreen->w, (Uint16)mLabelHeight};
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* now the text */
c869993e79c1eafbec61a56bf6cea848fe754c71xy SDL_Color clrFg = {(uint8_t)((mSecureLabelColorFG & 0x00FF0000) >> 16),
c869993e79c1eafbec61a56bf6cea848fe754c71xy ? pTTF_RenderUTF8_Blended(mLabelFont, mSecureLabelText.c_str(), clrFg)
c869993e79c1eafbec61a56bf6cea848fe754c71xy : pTTF_RenderUTF8_Solid(mLabelFont, mSecureLabelText.c_str(), clrFg);
c869993e79c1eafbec61a56bf6cea848fe754c71xy /* make sure to update the screen */
c869993e79c1eafbec61a56bf6cea848fe754c71xy#endif /* VBOX_SECURELABEL */
c869993e79c1eafbec61a56bf6cea848fe754c71xy// IFramebufferOverlay
c869993e79c1eafbec61a56bf6cea848fe754c71xy///////////////////////////////////////////////////////////////////////////////////
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl * Constructor for the VBoxSDLFBOverlay class (IFramebufferOverlay implementation)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param x Initial X offset for the overlay
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param y Initial Y offset for the overlay
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param width Initial width for the overlay
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param height Initial height for the overlay
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param visible Whether the overlay is initially visible
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param alpha Initial alpha channel value for the overlay
c869993e79c1eafbec61a56bf6cea848fe754c71xyVBoxSDLFBOverlay::VBoxSDLFBOverlay(ULONG x, ULONG y, ULONG width, ULONG height,
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Destructor for the VBoxSDLFBOverlay class.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Perform any initialisation of the overlay that can potentially fail
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns S_OK on success or the reason for the failure
c869993e79c1eafbec61a56bf6cea848fe754c71xy mBlendedBits = SDL_CreateRGBSurface(SDL_ANYFORMAT, mOverlayWidth, mOverlayHeight, 32,
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsgReturn(mBlendedBits != NULL, ("Failed to create an SDL surface\n"),
c869993e79c1eafbec61a56bf6cea848fe754c71xy mOverlayBits = SDL_CreateRGBSurface(SDL_SWSURFACE | SDL_SRCALPHA, mOverlayWidth,
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsgReturn(mOverlayBits != NULL, ("Failed to create an SDL surface\n"),
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns the current overlay X offset in pixels.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param x Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns the current overlay height in pixels.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param height Address of result buffer.
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl * Returns the current overlay width in pixels. In fact, this returns the line size.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param width Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(Width)(ULONG *width)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns the current overlay line size in pixels.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl * @param lineSize Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(BytesPerLine)(ULONG *bytesPerLine)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns the current overlay height in pixels.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param height Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(Height)(ULONG *height)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns whether the overlay is currently visible.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param visible Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(Visible)(BOOL *visible)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Sets whether the overlay is currently visible.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param visible New value.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMSETTER(Visible)(BOOL visible)
fa25784ca4b51c206177d891a654f1d36a25d41fxy * Returns the value of the global alpha channel.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param alpha Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(Alpha)(ULONG *alpha)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Sets whether the overlay is currently visible.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param alpha new value.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMSETTER(Alpha)(ULONG alpha)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns the address of the framebuffer bits for writing to.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param alpha Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(Address)(ULONG *address)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns the current colour depth. In fact, this is always 32bpp.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param bitsPerPixel Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(BitsPerPixel)(ULONG *bitsPerPixel)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns the current pixel format. In fact, this is always RGB.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param pixelFormat Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(PixelFormat)(ULONG *pixelFormat)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns whether the guest VRAM is used directly. In fact, this is always FALSE.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param usesGuestVRAM Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(UsesGuestVRAM)(BOOL *usesGuestVRAM)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns the height reduction. In fact, this is always 0.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param heightReduction Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(HeightReduction)(ULONG *heightReduction)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns the overlay for this framebuffer. Obviously, we return NULL here.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param overlay Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(Overlay)(IFramebufferOverlay **aOverlay)
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns associated window handle. We return NULL here.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param winId Address of result buffer.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::COMGETTER(WinId)(LONG64 *winId)
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl * Lock the overlay. This should not be used - lock the parent IFramebuffer instead.
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsgFailed(("You should not attempt to lock an IFramebufferOverlay object -\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy "lock the parent IFramebuffer object instead.\n"));
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Unlock the overlay.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsgFailed(("You should not attempt to lock an IFramebufferOverlay object -\n"
c869993e79c1eafbec61a56bf6cea848fe754c71xy "lock the parent IFramebuffer object instead.\n"));
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Change the X and Y co-ordinates of the overlay area.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param x New X co-ordinate.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param y New Y co-ordinate.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Notify the overlay that a section of the framebuffer has been redrawn.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param x X co-ordinate of upper left corner of modified area.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param y Y co-ordinate of upper left corner of modified area.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param w Width of modified area.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param h Height of modified area.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @retval finished Set if the operation has completed.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * All we do here is to send a request to the parent to update the affected area,
c869993e79c1eafbec61a56bf6cea848fe754c71xy * translating between our co-ordinate system and the parent's. It would be have
c869993e79c1eafbec61a56bf6cea848fe754c71xy * been better to call the parent directly, but such is life. We leave bounds
c869993e79c1eafbec61a56bf6cea848fe754c71xy * checking to the parent.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::NotifyUpdate(ULONG x, ULONG y,
c869993e79c1eafbec61a56bf6cea848fe754c71xy return mParent->NotifyUpdate(x + mOverlayX, y + mOverlayY, w, h);
8bb4b220fdb894543e41a5f9037898cf3c3f312bgl * Change the dimensions of the overlay.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param pixelFormat Must be FramebufferPixelFormat_PixelFormatRGB32.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param vram Must be NULL.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param lineSize Ignored.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param w New overlay width.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param h New overlay height.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @retval finished Set if the operation has completed.
c869993e79c1eafbec61a56bf6cea848fe754c71xySTDMETHODIMP VBoxSDLFBOverlay::RequestResize(ULONG aScreenId, ULONG pixelFormat, ULONG vram,
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertReturn(pixelFormat == FramebufferPixelFormat_FOURCC_RGB, E_INVALIDARG);
c869993e79c1eafbec61a56bf6cea848fe754c71xy mBlendedBits = SDL_CreateRGBSurface(SDL_ANYFORMAT, mOverlayWidth, mOverlayHeight, 32,
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsgReturn(mBlendedBits != NULL, ("Failed to create an SDL surface\n"),
c869993e79c1eafbec61a56bf6cea848fe754c71xy mOverlayBits = SDL_CreateRGBSurface(SDL_SWSURFACE | SDL_SRCALPHA, mOverlayWidth,
c869993e79c1eafbec61a56bf6cea848fe754c71xy AssertMsgReturn(mOverlayBits != NULL, ("Failed to create an SDL surface\n"),
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Returns whether we like the given video mode.
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @returns COM status code
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param width video mode width in pixels
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param height video mode height in pixels
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @param bpp video mode bit depth in bits per pixel
c869993e79c1eafbec61a56bf6cea848fe754c71xy * @retval supported pointer to result variable
c869993e79c1eafbec61a56bf6cea848fe754c71xy * Basically, we support anything with 32bpp.