VirtualBox

source: vbox/trunk/src/VBox/Frontends/VBoxSDL/Framebuffer.h@ 52320

Last change on this file since 52320 was 51677, checked in by vboxsync, 11 years ago

VBoxSDL: option to run a separate VM process.

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File size: 10.0 KB
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1/** @file
2 *
3 * VBox frontends: VBoxSDL (simple frontend based on SDL):
4 * Declaration of VBoxSDLFB (SDL framebuffer) class
5 */
6
7/*
8 * Copyright (C) 2006-2012 Oracle Corporation
9 *
10 * This file is part of VirtualBox Open Source Edition (OSE), as
11 * available from http://www.virtualbox.org. This file is free software;
12 * you can redistribute it and/or modify it under the terms of the GNU
13 * General Public License (GPL) as published by the Free Software
14 * Foundation, in version 2 as it comes in the "COPYING" file of the
15 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17 */
18
19#ifndef __H_FRAMEBUFFER
20#define __H_FRAMEBUFFER
21
22#include "VBoxSDL.h"
23#include <iprt/thread.h>
24
25#include <iprt/critsect.h>
26
27#ifdef VBOX_SECURELABEL
28#include <SDL_ttf.h>
29/* function pointers */
30extern "C"
31{
32extern DECLSPEC int (SDLCALL *pTTF_Init)(void);
33extern DECLSPEC TTF_Font* (SDLCALL *pTTF_OpenFont)(const char *file, int ptsize);
34extern DECLSPEC SDL_Surface* (SDLCALL *pTTF_RenderUTF8_Solid)(TTF_Font *font, const char *text, SDL_Color fg);
35extern DECLSPEC SDL_Surface* (SDLCALL *pTTF_RenderUTF8_Shaded)(TTF_Font *font, const char *text, SDL_Color fg, SDL_Color bg);
36extern DECLSPEC SDL_Surface* (SDLCALL *pTTF_RenderUTF8_Blended)(TTF_Font *font, const char *text, SDL_Color fg);
37extern DECLSPEC void (SDLCALL *pTTF_CloseFont)(TTF_Font *font);
38extern DECLSPEC void (SDLCALL *pTTF_Quit)(void);
39}
40#endif /* VBOX_SECURELABEL && !VBOX_WITH_SDL13 */
41
42class VBoxSDLFBOverlay;
43
44class ATL_NO_VTABLE VBoxSDLFB :
45 public CComObjectRootEx<CComMultiThreadModel>,
46 VBOX_SCRIPTABLE_IMPL(IFramebuffer)
47{
48public:
49 VBoxSDLFB();
50 ~VBoxSDLFB();
51
52 HRESULT init(uint32_t uScreenId,
53 bool fFullscreen, bool fResizable, bool fShowSDLConfig,
54 bool fKeepHostRes, uint32_t u32FixedWidth,
55 uint32_t u32FixedHeight, uint32_t u32FixedBPP,
56 bool fUpdateImage);
57
58 static bool init(bool fShowSDLConfig);
59 static void uninit();
60
61 DECLARE_NOT_AGGREGATABLE(VBoxSDLFB)
62
63 DECLARE_PROTECT_FINAL_CONSTRUCT()
64
65 BEGIN_COM_MAP(VBoxSDLFB)
66 COM_INTERFACE_ENTRY(IFramebuffer)
67 COM_INTERFACE_ENTRY2(IDispatch,IFramebuffer)
68 COM_INTERFACE_ENTRY_AGGREGATE(IID_IMarshal, m_pUnkMarshaler.p)
69 END_COM_MAP()
70
71 HRESULT FinalConstruct();
72 void FinalRelease();
73
74 STDMETHOD(COMGETTER(Width))(ULONG *width);
75 STDMETHOD(COMGETTER(Height))(ULONG *height);
76 STDMETHOD(COMGETTER(BitsPerPixel))(ULONG *bitsPerPixel);
77 STDMETHOD(COMGETTER(BytesPerLine))(ULONG *bytesPerLine);
78 STDMETHOD(COMGETTER(PixelFormat)) (ULONG *pixelFormat);
79 STDMETHOD(COMGETTER(HeightReduction)) (ULONG *heightReduction);
80 STDMETHOD(COMGETTER(Overlay)) (IFramebufferOverlay **aOverlay);
81 STDMETHOD(COMGETTER(WinId)) (int64_t *winId);
82
83 STDMETHOD(NotifyUpdate)(ULONG x, ULONG y, ULONG w, ULONG h);
84 STDMETHOD(NotifyUpdateImage)(ULONG x, ULONG y, ULONG w, ULONG h, ComSafeArrayIn(BYTE, aImage));
85 STDMETHOD(NotifyChange)(ULONG aScreenId,
86 ULONG aXOrigin,
87 ULONG aYOrigin,
88 ULONG aWidth,
89 ULONG aHeight);
90 STDMETHOD(VideoModeSupported)(ULONG width, ULONG height, ULONG bpp, BOOL *supported);
91
92 STDMETHOD(GetVisibleRegion)(BYTE *aRectangles, ULONG aCount, ULONG *aCountCopied);
93 STDMETHOD(SetVisibleRegion)(BYTE *aRectangles, ULONG aCount);
94
95 STDMETHOD(ProcessVHWACommand)(BYTE *pCommand);
96
97 STDMETHOD(Notify3DEvent)(ULONG uType, ComSafeArrayIn(BYTE, aData));
98
99 // internal public methods
100 bool initialized() { return mfInitialized; }
101 void notifyChange(ULONG aScreenId);
102 void resizeGuest();
103 void resizeSDL();
104 void update(int x, int y, int w, int h, bool fGuestRelative);
105 void repaint();
106 void setFullscreen(bool fFullscreen);
107 void getFullscreenGeometry(uint32_t *width, uint32_t *height);
108 uint32_t getScreenId() { return mScreenId; }
109 uint32_t getGuestXRes() { return mGuestXRes; }
110 uint32_t getGuestYRes() { return mGuestYRes; }
111 int32_t getOriginX() { return mOriginX; }
112 int32_t getOriginY() { return mOriginY; }
113 int32_t getXOffset() { return mCenterXOffset; }
114 int32_t getYOffset() { return mCenterYOffset; }
115#ifdef VBOX_WITH_SDL13
116 bool hasWindow(SDL_WindowID id) { return mScreen && mWindow == id; }
117#endif
118#ifdef VBOX_SECURELABEL
119 int initSecureLabel(uint32_t height, char *font, uint32_t pointsize, uint32_t labeloffs);
120 void setSecureLabelText(const char *text);
121 void setSecureLabelColor(uint32_t colorFG, uint32_t colorBG);
122 void paintSecureLabel(int x, int y, int w, int h, bool fForce);
123#endif
124 void setWinId(int64_t winId) { mWinId = winId; }
125 void setOrigin(int32_t axOrigin, int32_t ayOrigin) { mOriginX = axOrigin; mOriginY = ayOrigin; }
126 bool getFullscreen() { return mfFullscreen; }
127
128private:
129 /** current SDL framebuffer pointer (also includes screen width/height) */
130 SDL_Surface *mScreen;
131#ifdef VBOX_WITH_SDL13
132 /** the SDL window */
133 SDL_WindowID mWindow;
134 /** the texture */
135 SDL_TextureID mTexture;
136 /** render info */
137 SDL_RendererInfo mRenderInfo;
138#endif
139 /** false if constructor failed */
140 bool mfInitialized;
141 /** the screen number of this framebuffer */
142 uint32_t mScreenId;
143 /** use NotifyUpdateImage */
144 bool mfUpdateImage;
145 /** maximum possible screen width in pixels (~0 = no restriction) */
146 uint32_t mMaxScreenWidth;
147 /** maximum possible screen height in pixels (~0 = no restriction) */
148 uint32_t mMaxScreenHeight;
149 /** current guest screen width in pixels */
150 ULONG mGuestXRes;
151 /** current guest screen height in pixels */
152 ULONG mGuestYRes;
153 int32_t mOriginX;
154 int32_t mOriginY;
155 /** fixed SDL screen width (~0 = not set) */
156 uint32_t mFixedSDLWidth;
157 /** fixed SDL screen height (~0 = not set) */
158 uint32_t mFixedSDLHeight;
159 /** fixed SDL bits per pixel (~0 = not set) */
160 uint32_t mFixedSDLBPP;
161 /** Y offset in pixels, i.e. guest-nondrawable area at the top */
162 uint32_t mTopOffset;
163 /** X offset for guest screen centering */
164 uint32_t mCenterXOffset;
165 /** Y offset for guest screen centering */
166 uint32_t mCenterYOffset;
167 /** flag whether we're in fullscreen mode */
168 bool mfFullscreen;
169 /** flag whether we keep the host screen resolution when switching to
170 * fullscreen or not */
171 bool mfKeepHostRes;
172 /** framebuffer update semaphore */
173 RTCRITSECT mUpdateLock;
174 /** flag whether the SDL window should be resizable */
175 bool mfResizable;
176 /** flag whether we print out SDL information */
177 bool mfShowSDLConfig;
178 /** handle to window where framebuffer context is being drawn*/
179 int64_t mWinId;
180#ifdef VBOX_SECURELABEL
181 /** current secure label text */
182 Utf8Str mSecureLabelText;
183 /** current secure label foreground color (RGB) */
184 uint32_t mSecureLabelColorFG;
185 /** current secure label background color (RGB) */
186 uint32_t mSecureLabelColorBG;
187 /** secure label font handle */
188 TTF_Font *mLabelFont;
189 /** secure label height in pixels */
190 uint32_t mLabelHeight;
191 /** secure label offset from the top of the secure label */
192 uint32_t mLabelOffs;
193
194#endif
195
196 SDL_Surface *mSurfVRAM;
197
198 BYTE *mPtrVRAM;
199 ULONG mBitsPerPixel;
200 ULONG mBytesPerLine;
201 BOOL mfSameSizeRequested;
202
203 ComPtr<IDisplaySourceBitmap> mpSourceBitmap;
204 ComPtr<IDisplaySourceBitmap> mpPendingSourceBitmap;
205 bool mfUpdates;
206
207#ifdef RT_OS_WINDOWS
208 CComPtr <IUnknown> m_pUnkMarshaler;
209#endif
210};
211
212class VBoxSDLFBOverlay :
213 public IFramebufferOverlay
214{
215public:
216 VBoxSDLFBOverlay(ULONG x, ULONG y, ULONG width, ULONG height, BOOL visible,
217 VBoxSDLFB *aParent);
218 virtual ~VBoxSDLFBOverlay();
219
220#ifdef RT_OS_WINDOWS
221 STDMETHOD_(ULONG, AddRef)()
222 {
223 return ::InterlockedIncrement (&refcnt);
224 }
225 STDMETHOD_(ULONG, Release)()
226 {
227 long cnt = ::InterlockedDecrement (&refcnt);
228 if (cnt == 0)
229 delete this;
230 return cnt;
231 }
232#endif
233 VBOX_SCRIPTABLE_DISPATCH_IMPL(IFramebuffer)
234
235 NS_DECL_ISUPPORTS
236
237 STDMETHOD(COMGETTER(X))(ULONG *x);
238 STDMETHOD(COMGETTER(Y))(ULONG *y);
239 STDMETHOD(COMGETTER(Width))(ULONG *width);
240 STDMETHOD(COMGETTER(Height))(ULONG *height);
241 STDMETHOD(COMGETTER(Visible))(BOOL *visible);
242 STDMETHOD(COMSETTER(Visible))(BOOL visible);
243 STDMETHOD(COMGETTER(Alpha))(ULONG *alpha);
244 STDMETHOD(COMSETTER(Alpha))(ULONG alpha);
245 STDMETHOD(COMGETTER(Address))(ULONG *address);
246 STDMETHOD(COMGETTER(BytesPerLine))(ULONG *bytesPerLine);
247
248 /* These are not used, or return standard values. */
249 STDMETHOD(COMGETTER(BitsPerPixel))(ULONG *bitsPerPixel);
250 STDMETHOD(COMGETTER(PixelFormat)) (ULONG *pixelFormat);
251 STDMETHOD(COMGETTER(UsesGuestVRAM)) (BOOL *usesGuestVRAM);
252 STDMETHOD(COMGETTER(HeightReduction)) (ULONG *heightReduction);
253 STDMETHOD(COMGETTER(Overlay)) (IFramebufferOverlay **aOverlay);
254 STDMETHOD(COMGETTER(WinId)) (LONG64 *winId);
255
256 STDMETHOD(Lock)();
257 STDMETHOD(Unlock)();
258 STDMETHOD(Move)(ULONG x, ULONG y);
259 STDMETHOD(NotifyUpdate)(ULONG x, ULONG y, ULONG w, ULONG h);
260 STDMETHOD(RequestResize)(ULONG aScreenId, ULONG pixelFormat, ULONG vram,
261 ULONG bitsPerPixel, ULONG bytesPerLine,
262 ULONG w, ULONG h, BOOL *finished);
263 STDMETHOD(VideoModeSupported)(ULONG width, ULONG height, ULONG bpp, BOOL *supported);
264
265 // internal public methods
266 HRESULT init();
267
268private:
269 /** Overlay X offset */
270 ULONG mOverlayX;
271 /** Overlay Y offset */
272 ULONG mOverlayY;
273 /** Overlay width */
274 ULONG mOverlayWidth;
275 /** Overlay height */
276 ULONG mOverlayHeight;
277 /** Whether the overlay is currently active */
278 BOOL mOverlayVisible;
279 /** The parent IFramebuffer */
280 VBoxSDLFB *mParent;
281 /** SDL surface containing the actual framebuffer bits */
282 SDL_Surface *mOverlayBits;
283 /** Additional SDL surface used for combining the framebuffer and the overlay */
284 SDL_Surface *mBlendedBits;
285#ifdef RT_OS_WINDOWS
286 long refcnt;
287#endif
288};
289
290#endif // __H_FRAMEBUFFER
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