| 1 | /** @file
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| 2 | *
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| 3 | * VBox frontends: VBoxSDL (simple frontend based on SDL):
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| 4 | * Declaration of VBoxSDLFB (SDL framebuffer) class
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| 5 | */
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| 6 |
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| 7 | /*
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| 8 | * Copyright (C) 2006-2012 Oracle Corporation
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| 9 | *
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| 10 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 11 | * available from http://www.virtualbox.org. This file is free software;
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| 12 | * you can redistribute it and/or modify it under the terms of the GNU
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| 13 | * General Public License (GPL) as published by the Free Software
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| 14 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 15 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 16 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 17 | */
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| 18 |
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| 19 | #ifndef __H_FRAMEBUFFER
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| 20 | #define __H_FRAMEBUFFER
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| 21 |
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| 22 | #include "VBoxSDL.h"
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| 23 | #include <iprt/thread.h>
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| 24 |
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| 25 | #include <iprt/critsect.h>
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| 26 |
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| 27 | #ifdef VBOX_SECURELABEL
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| 28 | #include <SDL_ttf.h>
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| 29 | /* function pointers */
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| 30 | extern "C"
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| 31 | {
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| 32 | extern DECLSPEC int (SDLCALL *pTTF_Init)(void);
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| 33 | extern DECLSPEC TTF_Font* (SDLCALL *pTTF_OpenFont)(const char *file, int ptsize);
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| 34 | extern DECLSPEC SDL_Surface* (SDLCALL *pTTF_RenderUTF8_Solid)(TTF_Font *font, const char *text, SDL_Color fg);
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| 35 | extern DECLSPEC SDL_Surface* (SDLCALL *pTTF_RenderUTF8_Shaded)(TTF_Font *font, const char *text, SDL_Color fg, SDL_Color bg);
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| 36 | extern DECLSPEC SDL_Surface* (SDLCALL *pTTF_RenderUTF8_Blended)(TTF_Font *font, const char *text, SDL_Color fg);
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| 37 | extern DECLSPEC void (SDLCALL *pTTF_CloseFont)(TTF_Font *font);
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| 38 | extern DECLSPEC void (SDLCALL *pTTF_Quit)(void);
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| 39 | }
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| 40 | #endif /* VBOX_SECURELABEL && !VBOX_WITH_SDL13 */
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| 41 |
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| 42 | class VBoxSDLFBOverlay;
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| 43 |
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| 44 | class VBoxSDLFB :
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| 45 | VBOX_SCRIPTABLE_IMPL(IFramebuffer)
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| 46 | {
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| 47 | public:
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| 48 | VBoxSDLFB(uint32_t uScreenId,
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| 49 | bool fFullscreen = false, bool fResizable = true, bool fShowSDLConfig = false,
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| 50 | bool fKeepHostRes = false, uint32_t u32FixedWidth = ~(uint32_t)0,
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| 51 | uint32_t u32FixedHeight = ~(uint32_t)0, uint32_t u32FixedBPP = ~(uint32_t)0);
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| 52 | virtual ~VBoxSDLFB();
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| 53 |
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| 54 | static bool init(bool fShowSDLConfig);
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| 55 | static void uninit();
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| 56 |
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| 57 | #ifdef RT_OS_WINDOWS
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| 58 | STDMETHOD_(ULONG, AddRef)()
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| 59 | {
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| 60 | return ::InterlockedIncrement (&refcnt);
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| 61 | }
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| 62 | STDMETHOD_(ULONG, Release)()
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| 63 | {
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| 64 | long cnt = ::InterlockedDecrement (&refcnt);
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| 65 | if (cnt == 0)
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| 66 | delete this;
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| 67 | return cnt;
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| 68 | }
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| 69 | #endif
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| 70 | VBOX_SCRIPTABLE_DISPATCH_IMPL(IFramebuffer)
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| 71 |
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| 72 | NS_DECL_ISUPPORTS
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| 73 |
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| 74 | STDMETHOD(COMGETTER(Width))(ULONG *width);
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| 75 | STDMETHOD(COMGETTER(Height))(ULONG *height);
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| 76 | STDMETHOD(Lock)();
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| 77 | STDMETHOD(Unlock)();
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| 78 | STDMETHOD(COMGETTER(Address))(BYTE **address);
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| 79 | STDMETHOD(COMGETTER(BitsPerPixel))(ULONG *bitsPerPixel);
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| 80 | STDMETHOD(COMGETTER(BytesPerLine))(ULONG *bytesPerLine);
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| 81 | STDMETHOD(COMGETTER(PixelFormat)) (ULONG *pixelFormat);
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| 82 | STDMETHOD(COMGETTER(UsesGuestVRAM)) (BOOL *usesGuestVRAM);
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| 83 | STDMETHOD(COMGETTER(HeightReduction)) (ULONG *heightReduction);
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| 84 | STDMETHOD(COMGETTER(Overlay)) (IFramebufferOverlay **aOverlay);
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| 85 | STDMETHOD(COMGETTER(WinId)) (int64_t *winId);
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| 86 |
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| 87 | STDMETHOD(NotifyUpdate)(ULONG x, ULONG y, ULONG w, ULONG h);
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| 88 | STDMETHOD(RequestResize)(ULONG aScreenId, ULONG pixelFormat, BYTE *vram,
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| 89 | ULONG bitsPerPixel, ULONG bytesPerLine,
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| 90 | ULONG w, ULONG h, BOOL *finished);
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| 91 | STDMETHOD(VideoModeSupported)(ULONG width, ULONG height, ULONG bpp, BOOL *supported);
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| 92 |
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| 93 | STDMETHOD(GetVisibleRegion)(BYTE *aRectangles, ULONG aCount, ULONG *aCountCopied);
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| 94 | STDMETHOD(SetVisibleRegion)(BYTE *aRectangles, ULONG aCount);
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| 95 |
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| 96 | STDMETHOD(ProcessVHWACommand)(BYTE *pCommand);
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| 97 |
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| 98 | // internal public methods
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| 99 | bool initialized() { return mfInitialized; }
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| 100 | void resizeGuest();
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| 101 | void resizeSDL();
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| 102 | void update(int x, int y, int w, int h, bool fGuestRelative);
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| 103 | void repaint();
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| 104 | void setFullscreen(bool fFullscreen);
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| 105 | void getFullscreenGeometry(uint32_t *width, uint32_t *height);
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| 106 | uint32_t getScreenId() { return mScreenId; }
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| 107 | uint32_t getGuestXRes() { return mGuestXRes; }
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| 108 | uint32_t getGuestYRes() { return mGuestYRes; }
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| 109 | int32_t getOriginX() { return mOriginX; }
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| 110 | int32_t getOriginY() { return mOriginY; }
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| 111 | int32_t getXOffset() { return mCenterXOffset; }
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| 112 | int32_t getYOffset() { return mCenterYOffset; }
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| 113 | #ifdef VBOX_WITH_SDL13
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| 114 | bool hasWindow(SDL_WindowID id) { return mScreen && mWindow == id; }
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| 115 | #endif
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| 116 | #ifdef VBOX_SECURELABEL
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| 117 | int initSecureLabel(uint32_t height, char *font, uint32_t pointsize, uint32_t labeloffs);
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| 118 | void setSecureLabelText(const char *text);
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| 119 | void setSecureLabelColor(uint32_t colorFG, uint32_t colorBG);
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| 120 | void paintSecureLabel(int x, int y, int w, int h, bool fForce);
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| 121 | #endif
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| 122 | void setWinId(int64_t winId) { mWinId = winId; }
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| 123 | void setOrigin(int32_t axOrigin, int32_t ayOrigin) { mOriginX = axOrigin; mOriginY = ayOrigin; }
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| 124 | bool getFullscreen() { return mfFullscreen; }
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| 125 |
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| 126 | private:
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| 127 | /** current SDL framebuffer pointer (also includes screen width/height) */
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| 128 | SDL_Surface *mScreen;
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| 129 | #ifdef VBOX_WITH_SDL13
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| 130 | /** the SDL window */
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| 131 | SDL_WindowID mWindow;
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| 132 | /** the texture */
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| 133 | SDL_TextureID mTexture;
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| 134 | /** render info */
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| 135 | SDL_RendererInfo mRenderInfo;
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| 136 | #endif
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| 137 | /** false if constructor failed */
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| 138 | bool mfInitialized;
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| 139 | /** the screen number of this framebuffer */
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| 140 | uint32_t mScreenId;
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| 141 | /** maximum possible screen width in pixels (~0 = no restriction) */
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| 142 | uint32_t mMaxScreenWidth;
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| 143 | /** maximum possible screen height in pixels (~0 = no restriction) */
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| 144 | uint32_t mMaxScreenHeight;
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| 145 | /** current guest screen width in pixels */
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| 146 | ULONG mGuestXRes;
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| 147 | /** current guest screen height in pixels */
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| 148 | ULONG mGuestYRes;
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| 149 | int32_t mOriginX;
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| 150 | int32_t mOriginY;
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| 151 | /** fixed SDL screen width (~0 = not set) */
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| 152 | uint32_t mFixedSDLWidth;
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| 153 | /** fixed SDL screen height (~0 = not set) */
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| 154 | uint32_t mFixedSDLHeight;
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| 155 | /** fixed SDL bits per pixel (~0 = not set) */
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| 156 | uint32_t mFixedSDLBPP;
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| 157 | /** Y offset in pixels, i.e. guest-nondrawable area at the top */
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| 158 | uint32_t mTopOffset;
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| 159 | /** X offset for guest screen centering */
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| 160 | uint32_t mCenterXOffset;
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| 161 | /** Y offset for guest screen centering */
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| 162 | uint32_t mCenterYOffset;
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| 163 | /** flag whether we're in fullscreen mode */
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| 164 | bool mfFullscreen;
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| 165 | /** flag whether we keep the host screen resolution when switching to
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| 166 | * fullscreen or not */
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| 167 | bool mfKeepHostRes;
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| 168 | /** framebuffer update semaphore */
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| 169 | RTCRITSECT mUpdateLock;
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| 170 | /** flag whether the SDL window should be resizable */
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| 171 | bool mfResizable;
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| 172 | /** flag whether we print out SDL information */
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| 173 | bool mfShowSDLConfig;
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| 174 | /** handle to window where framebuffer context is being drawn*/
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| 175 | int64_t mWinId;
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| 176 | #ifdef VBOX_SECURELABEL
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| 177 | /** current secure label text */
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| 178 | Utf8Str mSecureLabelText;
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| 179 | /** current secure label foreground color (RGB) */
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| 180 | uint32_t mSecureLabelColorFG;
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| 181 | /** current secure label background color (RGB) */
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| 182 | uint32_t mSecureLabelColorBG;
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| 183 | /** secure label font handle */
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| 184 | TTF_Font *mLabelFont;
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| 185 | /** secure label height in pixels */
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| 186 | uint32_t mLabelHeight;
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| 187 | /** secure label offset from the top of the secure label */
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| 188 | uint32_t mLabelOffs;
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| 189 |
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| 190 | #endif
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| 191 | #ifdef RT_OS_WINDOWS
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| 192 | long refcnt;
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| 193 | #endif
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| 194 | SDL_Surface *mSurfVRAM;
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| 195 |
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| 196 | BYTE *mPtrVRAM;
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| 197 | ULONG mBitsPerPixel;
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| 198 | ULONG mBytesPerLine;
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| 199 | ULONG mPixelFormat;
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| 200 | BOOL mUsesGuestVRAM;
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| 201 | BOOL mfSameSizeRequested;
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| 202 | };
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| 203 |
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| 204 | class VBoxSDLFBOverlay :
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| 205 | public IFramebufferOverlay
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| 206 | {
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| 207 | public:
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| 208 | VBoxSDLFBOverlay(ULONG x, ULONG y, ULONG width, ULONG height, BOOL visible,
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| 209 | VBoxSDLFB *aParent);
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| 210 | virtual ~VBoxSDLFBOverlay();
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| 211 |
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| 212 | #ifdef RT_OS_WINDOWS
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| 213 | STDMETHOD_(ULONG, AddRef)()
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| 214 | {
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| 215 | return ::InterlockedIncrement (&refcnt);
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| 216 | }
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| 217 | STDMETHOD_(ULONG, Release)()
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| 218 | {
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| 219 | long cnt = ::InterlockedDecrement (&refcnt);
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| 220 | if (cnt == 0)
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| 221 | delete this;
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| 222 | return cnt;
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| 223 | }
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| 224 | #endif
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| 225 | VBOX_SCRIPTABLE_DISPATCH_IMPL(IFramebuffer)
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| 226 |
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| 227 | NS_DECL_ISUPPORTS
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| 228 |
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| 229 | STDMETHOD(COMGETTER(X))(ULONG *x);
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| 230 | STDMETHOD(COMGETTER(Y))(ULONG *y);
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| 231 | STDMETHOD(COMGETTER(Width))(ULONG *width);
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| 232 | STDMETHOD(COMGETTER(Height))(ULONG *height);
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| 233 | STDMETHOD(COMGETTER(Visible))(BOOL *visible);
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| 234 | STDMETHOD(COMSETTER(Visible))(BOOL visible);
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| 235 | STDMETHOD(COMGETTER(Alpha))(ULONG *alpha);
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| 236 | STDMETHOD(COMSETTER(Alpha))(ULONG alpha);
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| 237 | STDMETHOD(COMGETTER(Address))(ULONG *address);
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| 238 | STDMETHOD(COMGETTER(BytesPerLine))(ULONG *bytesPerLine);
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| 239 |
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| 240 | /* These are not used, or return standard values. */
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| 241 | STDMETHOD(COMGETTER(BitsPerPixel))(ULONG *bitsPerPixel);
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| 242 | STDMETHOD(COMGETTER(PixelFormat)) (ULONG *pixelFormat);
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| 243 | STDMETHOD(COMGETTER(UsesGuestVRAM)) (BOOL *usesGuestVRAM);
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| 244 | STDMETHOD(COMGETTER(HeightReduction)) (ULONG *heightReduction);
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| 245 | STDMETHOD(COMGETTER(Overlay)) (IFramebufferOverlay **aOverlay);
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| 246 | STDMETHOD(COMGETTER(WinId)) (LONG64 *winId);
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| 247 |
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| 248 | STDMETHOD(Lock)();
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| 249 | STDMETHOD(Unlock)();
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| 250 | STDMETHOD(Move)(ULONG x, ULONG y);
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| 251 | STDMETHOD(NotifyUpdate)(ULONG x, ULONG y, ULONG w, ULONG h);
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| 252 | STDMETHOD(RequestResize)(ULONG aScreenId, ULONG pixelFormat, ULONG vram,
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| 253 | ULONG bitsPerPixel, ULONG bytesPerLine,
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| 254 | ULONG w, ULONG h, BOOL *finished);
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| 255 | STDMETHOD(VideoModeSupported)(ULONG width, ULONG height, ULONG bpp, BOOL *supported);
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| 256 |
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| 257 | // internal public methods
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| 258 | HRESULT init();
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| 259 |
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| 260 | private:
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| 261 | /** Overlay X offset */
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| 262 | ULONG mOverlayX;
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| 263 | /** Overlay Y offset */
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| 264 | ULONG mOverlayY;
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| 265 | /** Overlay width */
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| 266 | ULONG mOverlayWidth;
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| 267 | /** Overlay height */
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| 268 | ULONG mOverlayHeight;
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| 269 | /** Whether the overlay is currently active */
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| 270 | BOOL mOverlayVisible;
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| 271 | /** The parent IFramebuffer */
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| 272 | VBoxSDLFB *mParent;
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| 273 | /** SDL surface containing the actual framebuffer bits */
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| 274 | SDL_Surface *mOverlayBits;
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| 275 | /** Additional SDL surface used for combining the framebuffer and the overlay */
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| 276 | SDL_Surface *mBlendedBits;
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| 277 | #ifdef RT_OS_WINDOWS
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| 278 | long refcnt;
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| 279 | #endif
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| 280 | };
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| 281 |
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| 282 | #endif // __H_FRAMEBUFFER
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