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dpavlin |
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/* |
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* PearPC |
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* sysdisplay.cc - screen access functions for Win32 |
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* |
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* Copyright (C) 1999-2004 Sebastian Biallas (sb@biallas.net) |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#include <cstdio> |
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#include <cstdlib> |
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#include <cstring> |
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#include "system/sysvaccel.h" |
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#include "system/display.h" |
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#include "system/sysexcept.h" |
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#include "tools/snprintf.h" |
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#include "configparser.h" |
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#undef FASTCALL |
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#define WIN32_LEAN_AND_MEAN |
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#include <windows.h> |
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#include <windowsx.h> |
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#include <commctrl.h> |
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#include <process.h> |
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#undef FASTCALL |
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#include "system/types.h" |
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#include "syswin.h" |
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static byte *winframebuffer = NULL; |
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static HBITMAP gMemoryBitmap = 0; |
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static BITMAPINFO gBitmapInfo; |
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Win32Display::Win32Display(const char *name, const DisplayCharacteristics &chr, int redraw_ms) |
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:SystemDisplay(chr, redraw_ms) |
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{ |
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mClientChar = chr; |
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convertCharacteristicsToHost(mWinChar, mClientChar); |
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mTitle = strdup(name); |
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mMenuHeight = 28; |
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gMenuHeight = mMenuHeight; |
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gFrameBuffer = (byte*)realloc(gFrameBuffer, mClientChar.width |
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* mClientChar.height * mClientChar.bytesPerPixel); |
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winframebuffer = (byte*)realloc(winframebuffer, mWinChar.width |
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* mWinChar.height * mWinChar.bytesPerPixel); |
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memset(gFrameBuffer, 0, mClientChar.width |
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* mClientChar.height * mClientChar.bytesPerPixel); |
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damageFrameBufferAll(); |
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mHomeMouseX = mWinChar.width/2; |
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mHomeMouseY = mWinChar.height/2; |
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InitializeCriticalSection(&gDrawCS); |
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mInvisibleCursor = NULL; |
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} |
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Win32Display::~Win32Display() |
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{ |
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if (gMemoryBitmap) DeleteObject(gMemoryBitmap); |
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DeleteCriticalSection(&gDrawCS); |
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free(gFrameBuffer); |
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free(winframebuffer); |
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if (mInvisibleCursor) DestroyCursor(mInvisibleCursor); |
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} |
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void Win32Display::getHostCharacteristics(Container &modes) |
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{ |
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DEVMODE dm; |
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DWORD num = 0; |
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while (EnumDisplaySettings(NULL, num++, &dm)) { |
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switch (dm.dmBitsPerPel) { |
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case 15: |
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case 16: |
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dm.dmBitsPerPel = 2; |
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break; |
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case 32: |
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dm.dmBitsPerPel = 4; |
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break; |
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default: |
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continue; |
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} |
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DisplayCharacteristics *dc = new DisplayCharacteristics; |
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dc->width = dm.dmPelsWidth; |
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dc->height = dm.dmPelsHeight; |
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dc->bytesPerPixel = dm.dmBitsPerPel; |
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dc->scanLineLength = -1; |
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dc->vsyncFrequency = dm.dmDisplayFrequency; |
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dc->redShift = -1; |
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dc->redSize = -1; |
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dc->greenShift = -1; |
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dc->greenSize = -1; |
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dc->blueShift = -1; |
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dc->blueSize = -1; |
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modes.insert(dc); |
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} |
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} |
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void Win32Display::convertCharacteristicsToHost(DisplayCharacteristics &aHostChar, const DisplayCharacteristics &aClientChar) |
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{ |
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aHostChar = aClientChar; |
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if (!mFullscreen) { |
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HWND dw = GetDesktopWindow(); |
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HDC ddc = GetDC(dw); |
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aHostChar.bytesPerPixel = (GetDeviceCaps(ddc, BITSPIXEL)+7)/8; |
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aHostChar.scanLineLength = aHostChar.bytesPerPixel * aHostChar.width; |
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ReleaseDC(dw, ddc); |
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} |
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switch (aHostChar.bytesPerPixel) { |
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case 2: |
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aHostChar.redShift = 10; |
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aHostChar.redSize = 5; |
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aHostChar.greenShift = 5; |
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aHostChar.greenSize = 5; |
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aHostChar.blueShift = 0; |
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aHostChar.blueSize = 5; |
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break; |
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case 4: |
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aHostChar.redShift = 16; |
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aHostChar.redSize = 8; |
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aHostChar.greenShift = 8; |
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aHostChar.greenSize = 8; |
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aHostChar.blueShift = 0; |
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aHostChar.blueSize = 8; |
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break; |
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} |
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} |
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bool Win32Display::changeResolution(const DisplayCharacteristics &aClientChar) |
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{ |
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if (mFullscreen) { |
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EnterCriticalSection(&gDrawCS); |
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DisplayCharacteristics oldhost = mWinChar; |
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DisplayCharacteristics oldclient = mClientChar; |
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mClientChar = aClientChar; |
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convertCharacteristicsToHost(mWinChar, mClientChar); |
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DEVMODE dm; |
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dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT | DM_DISPLAYFREQUENCY; |
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// dm.dmBitsPerPel = (mWinChar.bytesPerPixel == 2) ? 15 : 32; // GRRRR |
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dm.dmBitsPerPel = (mWinChar.bytesPerPixel == 2) ? 16 : 32; |
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dm.dmPelsWidth = mWinChar.width; |
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dm.dmPelsHeight = mWinChar.height; |
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ht_printf("*** %d **\n", mWinChar.vsyncFrequency); |
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dm.dmDisplayFrequency = mWinChar.vsyncFrequency; |
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LONG err = ChangeDisplaySettings(&dm, CDS_TEST); |
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if (err != DISP_CHANGE_SUCCESSFUL) { |
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if (mWinChar.bytesPerPixel == 2) { |
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dm.dmBitsPerPel = 16; |
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err = ChangeDisplaySettings(&dm, CDS_TEST); |
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} |
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} |
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if (err != DISP_CHANGE_SUCCESSFUL) { |
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mWinChar = oldhost; |
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mClientChar = oldclient; |
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LeaveCriticalSection(&gDrawCS); |
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/* |
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* FIXME: maybe we should switch back to windowed mode |
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* here if running in fullscreen mode. |
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*/ |
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if (mFullscreenChanged) { |
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// do something |
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} |
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return false; |
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} |
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ChangeDisplaySettings(&dm, CDS_FULLSCREEN); |
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gMenuHeight = 0; |
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gFrameBuffer = (byte*)realloc(gFrameBuffer, mClientChar.width |
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* mClientChar.height * mClientChar.bytesPerPixel); |
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winframebuffer = (byte*)realloc(winframebuffer, mWinChar.width |
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* mWinChar.height * mWinChar.bytesPerPixel); |
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createBitmap(); |
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damageFrameBufferAll(); |
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mFullscreenChanged = true; |
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LeaveCriticalSection(&gDrawCS); |
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SetWindowLong(gHWNDMain, GWL_STYLE, WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_SYSMENU | WS_OVERLAPPED); |
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SetWindowPos(gHWNDMain, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED); |
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SetWindowPos(gHWNDMain, HWND_TOPMOST, 0, 0, mWinChar.width, mWinChar.height, 0); |
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ShowWindow(gHWNDMain, SW_SHOWMAXIMIZED); |
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setMouseGrab(true); |
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return true; |
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} else { |
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EnterCriticalSection(&gDrawCS); |
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if (mFullscreenChanged) { |
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// switch out of fullscreen mode |
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gMenuHeight = 28; |
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setMouseGrab(false); |
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ChangeDisplaySettings(NULL, 0); |
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} |
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/* |
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* get size of desktop first |
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* (windows doesn't allow windows greater than the desktop) |
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*/ |
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HWND dw = GetDesktopWindow(); |
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RECT desktoprect; |
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GetWindowRect(dw, &desktoprect); |
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if (aClientChar.width > (desktoprect.right-desktoprect.left) |
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|| aClientChar.height > (desktoprect.bottom-desktoprect.top)) { |
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/* |
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* protect user from himself |
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* What shall we do if switching out of full- |
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* screen mode does not work? |
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*/ |
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if (mFullscreenChanged) { |
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// FIXME: insert clever code here |
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} else { |
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return false; |
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} |
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} |
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mFullscreenChanged = false; |
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mClientChar = aClientChar; |
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convertCharacteristicsToHost(mWinChar, mClientChar); |
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gFrameBuffer = (byte*)realloc(gFrameBuffer, mClientChar.width |
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* mClientChar.height * mClientChar.bytesPerPixel); |
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winframebuffer = (byte*)realloc(winframebuffer, mWinChar.width |
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* mWinChar.height * mWinChar.bytesPerPixel); |
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mHomeMouseX = mWinChar.width/2; |
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mHomeMouseY = mWinChar.height/2; |
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createBitmap(); |
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SetWindowLong(gHWNDMain, GWL_STYLE, WS_VISIBLE | WS_SYSMENU | WS_CAPTION | WS_BORDER | WS_MINIMIZEBOX); |
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SetWindowPos(gHWNDMain, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED); |
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SetWindowPos(gHWNDMain, HWND_TOP, 0, 0, mWinChar.width + GetSystemMetrics(SM_CXFIXEDFRAME) * 2, |
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mWinChar.height + gMenuHeight + GetSystemMetrics(SM_CYFIXEDFRAME) * 2 + GetSystemMetrics(SM_CYCAPTION), 0); |
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LeaveCriticalSection(&gDrawCS); |
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RECT rect; |
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RECT rect2; |
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GetWindowRect(gHWNDMain, &rect); |
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GetWindowRect(gHWNDMain, &rect2); |
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rect.right = rect.left+mWinChar.width; |
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rect.bottom = rect.top+mWinChar.height+gMenuHeight; |
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AdjustWindowRect(&rect, WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN |
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| WS_CAPTION | WS_BORDER | WS_SYSMENU | WS_MINIMIZEBOX, FALSE); |
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MoveWindow(gHWNDMain, rect2.left, rect2.top, rect.right-rect.left, rect.bottom-rect.top, TRUE); |
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ShowWindow(gHWNDMain, SW_SHOWNORMAL); |
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} |
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damageFrameBufferAll(); |
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return true; |
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} |
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int Win32Display::toString(char *buf, int buflen) const |
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{ |
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return snprintf(buf, buflen, "Win32"); |
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} |
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void Win32Display::finishMenu() |
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{ |
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menuData = (byte*)malloc(mWinChar.width * |
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mMenuHeight * mWinChar.bytesPerPixel); |
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gMenuBitmapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); |
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gMenuBitmapInfo.bmiHeader.biWidth = mWinChar.width; |
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gMenuBitmapInfo.bmiHeader.biHeight = -mMenuHeight; |
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gMenuBitmapInfo.bmiHeader.biPlanes = 1; |
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gMenuBitmapInfo.bmiHeader.biBitCount = 8*mWinChar.bytesPerPixel; |
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gMenuBitmapInfo.bmiHeader.biCompression = BI_RGB; |
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gMenuBitmapInfo.bmiHeader.biSizeImage = |
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mWinChar.width * mMenuHeight |
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* mWinChar.bytesPerPixel; |
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gMenuBitmapInfo.bmiHeader.biXPelsPerMeter = 4500; |
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gMenuBitmapInfo.bmiHeader.biYPelsPerMeter = 4500; |
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gMenuBitmapInfo.bmiHeader.biClrUsed = 0; |
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gMenuBitmapInfo.bmiHeader.biClrImportant = 0; |
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// Is this ugly? Yes! |
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fillRGB(0, 0, mClientChar.width, mClientChar.height, MK_RGB(0xff, 0xff, 0xff)); |
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drawMenu(); |
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sys_convert_display(mClientChar, mWinChar, gFrameBuffer, winframebuffer, 0, mClientChar.height-1); |
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memmove(menuData, winframebuffer, mWinChar.width * mMenuHeight |
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* mWinChar.bytesPerPixel); |
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InvalidateRect(gHWNDMain, NULL, FALSE); |
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} |
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void Win32Display::updateTitle() |
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{ |
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String key; |
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int key_toggle_mouse_grab = gKeyboard->getKeyConfig().key_toggle_mouse_grab; |
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SystemKeyboard::convertKeycodeToString(key, key_toggle_mouse_grab); |
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ht_snprintf(mCurTitle, sizeof mCurTitle, "%s - [%s %s mouse]", mTitle,key.contentChar(), (isMouseGrabbed() ? "disables" : "enables")); |
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SetWindowText(gHWNDMain, mCurTitle); |
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} |
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void Win32Display::setMouseGrab(bool enable) |
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{ |
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if (mMouseGrabbed == enable) return; |
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SystemDisplay::setMouseGrab(enable); |
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if (enable) { |
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mResetMouseX = mCurMouseX; |
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mResetMouseY = mCurMouseY; |
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showCursor(false); |
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if (mFullscreenChanged) { |
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SetCursorPos(mHomeMouseX, mHomeMouseY); |
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} else { |
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RECT wndRect; |
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GetWindowRect(gHWNDMain, &wndRect); |
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SetCursorPos(wndRect.left + mHomeMouseX + GetSystemMetrics(SM_CXFIXEDFRAME), |
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wndRect.top + mHomeMouseY + GetSystemMetrics(SM_CYFIXEDFRAME) |
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+ GetSystemMetrics(SM_CYCAPTION)); |
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} |
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} else { |
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if (mFullscreenChanged) { |
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SetCursorPos(mResetMouseX, mResetMouseY); |
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} else { |
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RECT wndRect; |
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GetWindowRect(gHWNDMain, &wndRect); |
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SetCursorPos(wndRect.left + mResetMouseX + GetSystemMetrics(SM_CXFIXEDFRAME), |
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wndRect.top + mResetMouseY + GetSystemMetrics(SM_CYFIXEDFRAME) |
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+ GetSystemMetrics(SM_CYCAPTION)); |
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} |
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showCursor(true); |
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} |
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} |
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void Win32Display::displayShow() |
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{ |
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if (!isExposed()) return; |
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uint firstDamagedLine, lastDamagedLine; |
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// We've got problems with races here because gcard_write1/2/4 |
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// might set gDamageAreaFirstAddr, gDamageAreaLastAddr. |
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// We can't use mutexes in gcard for speed reasons. So we'll |
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// try to minimize the probability of loosing the race. |
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if (gDamageAreaFirstAddr > gDamageAreaLastAddr+3) { |
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return; |
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} |
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uint damageAreaFirstAddr = gDamageAreaFirstAddr; |
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uint damageAreaLastAddr = gDamageAreaLastAddr; |
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healFrameBuffer(); |
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// end of race |
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// we enter the critical section early, so that |
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// changeResolution can't conflict here |
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EnterCriticalSection(&gDrawCS); |
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damageAreaLastAddr += 3; // this is a hack. For speed reasons we |
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// inaccurately set gDamageAreaLastAddr |
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// to the first (not last) byte accessed |
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// accesses are up to 4 bytes "long". |
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firstDamagedLine = damageAreaFirstAddr / (mClientChar.width * mClientChar.bytesPerPixel); |
366 |
|
|
lastDamagedLine = damageAreaLastAddr / (mClientChar.width * mClientChar.bytesPerPixel); |
367 |
|
|
// Overflow may happen, because of the hack used above |
368 |
|
|
// and others, that set lastAddr = 0xfffffff0 |
369 |
|
|
if (lastDamagedLine >= (uint)mClientChar.height) { |
370 |
|
|
lastDamagedLine = mClientChar.height-1; |
371 |
|
|
} |
372 |
|
|
|
373 |
|
|
sys_convert_display(mClientChar, mWinChar, gFrameBuffer, winframebuffer, firstDamagedLine, lastDamagedLine); |
374 |
|
|
|
375 |
|
|
HDC hdc = GetDC(gHWNDMain); |
376 |
|
|
|
377 |
|
|
SetDIBitsToDevice( |
378 |
|
|
hdc, |
379 |
|
|
0, |
380 |
|
|
gMenuHeight+firstDamagedLine, |
381 |
|
|
mWinChar.width, |
382 |
|
|
lastDamagedLine-firstDamagedLine+1, // number of lines to draw |
383 |
|
|
0, |
384 |
|
|
mWinChar.height-lastDamagedLine-1, // line src-position (0,0 = lower left) |
385 |
|
|
0, |
386 |
|
|
mWinChar.height, |
387 |
|
|
winframebuffer, &gBitmapInfo, DIB_RGB_COLORS); |
388 |
|
|
|
389 |
|
|
ReleaseDC(gHWNDMain, hdc); |
390 |
|
|
|
391 |
|
|
LeaveCriticalSection(&gDrawCS); |
392 |
|
|
} |
393 |
|
|
|
394 |
|
|
void Win32Display::createBitmap() |
395 |
|
|
{ |
396 |
|
|
if (gMemoryBitmap) DeleteObject(gMemoryBitmap); |
397 |
|
|
HDC hdc = GetDC(gHWNDMain); |
398 |
|
|
gMemoryBitmap = CreateCompatibleBitmap(hdc, mWinChar.width, mWinChar.height); |
399 |
|
|
ReleaseDC(gHWNDMain, hdc); |
400 |
|
|
gBitmapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); |
401 |
|
|
gBitmapInfo.bmiHeader.biWidth = mWinChar.width; |
402 |
|
|
// Height is negative for top-down bitmap |
403 |
|
|
gBitmapInfo.bmiHeader.biHeight = -mWinChar.height; |
404 |
|
|
gBitmapInfo.bmiHeader.biPlanes = 1; |
405 |
|
|
gBitmapInfo.bmiHeader.biBitCount = 8*mWinChar.bytesPerPixel; |
406 |
|
|
gBitmapInfo.bmiHeader.biCompression = BI_RGB; |
407 |
|
|
gBitmapInfo.bmiHeader.biSizeImage = |
408 |
|
|
mWinChar.width * mWinChar.height |
409 |
|
|
* mWinChar.bytesPerPixel; |
410 |
|
|
gBitmapInfo.bmiHeader.biXPelsPerMeter = 4500; |
411 |
|
|
gBitmapInfo.bmiHeader.biYPelsPerMeter = 4500; |
412 |
|
|
gBitmapInfo.bmiHeader.biClrUsed = 0; |
413 |
|
|
gBitmapInfo.bmiHeader.biClrImportant = 0; |
414 |
|
|
} |
415 |
|
|
|
416 |
|
|
void Win32Display::initCursor() |
417 |
|
|
{ |
418 |
|
|
mVisibleCursor = GetCursor(); |
419 |
|
|
|
420 |
|
|
int cx = GetSystemMetrics(SM_CXCURSOR); |
421 |
|
|
int cy = GetSystemMetrics(SM_CYCURSOR); |
422 |
|
|
|
423 |
|
|
BYTE andplane[cx*cy]; |
424 |
|
|
BYTE xorplane[cx*cy]; |
425 |
|
|
|
426 |
|
|
memset(andplane, 0xff, cx*cy); |
427 |
|
|
memset(xorplane, 0, cx*cy); |
428 |
|
|
mInvisibleCursor = CreateCursor(NULL, 0, 0, cx, cy, andplane, xorplane); |
429 |
|
|
} |
430 |
|
|
|
431 |
|
|
void Win32Display::showCursor(bool visible) |
432 |
|
|
{ |
433 |
|
|
SetClassLong(gHWNDMain, GCL_HCURSOR, visible ? (LONG)mVisibleCursor : (LONG)mInvisibleCursor); |
434 |
|
|
} |
435 |
|
|
|
436 |
|
|
SystemDisplay *allocSystemDisplay(const char *title, const DisplayCharacteristics &chr, int redraw_ms) |
437 |
|
|
{ |
438 |
|
|
if (gDisplay) return gDisplay; |
439 |
|
|
return new Win32Display(title, chr, redraw_ms); |
440 |
|
|
} |