| 1 |
/* |
| 2 |
* PearPC |
| 3 |
* sysdisplay.cc - screen access functions for X11 |
| 4 |
* |
| 5 |
* Copyright (C) 1999-2002 Stefan Weyergraf |
| 6 |
* 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 |
| 18 |
* 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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|
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#include <csignal> |
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#include <cstdlib> |
| 24 |
#include <unistd.h> |
| 25 |
#include <cstring> |
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|
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#include <X11/Xutil.h> |
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|
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#include "system/display.h" |
| 30 |
#include "system/types.h" |
| 31 |
#include "system/systhread.h" |
| 32 |
#include "system/sysexcept.h" |
| 33 |
#include "system/sysvaccel.h" |
| 34 |
#include "tools/data.h" |
| 35 |
#include "tools/snprintf.h" |
| 36 |
//#include "configparser.h" |
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|
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#include "sysx11.h" |
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|
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#define DPRINTF(a...) |
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//#define DPRINTF(a...) ht_printf(a) |
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|
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static void findMaskShiftAndSize(int &shift, int &size, uint bitmask) |
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{ |
| 45 |
if (!bitmask) { |
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shift = 0; |
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size = 0; |
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return; |
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} |
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shift = 0; |
| 51 |
while (!(bitmask & 1)) { |
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shift++; |
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bitmask >>= 1; |
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} |
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size = 0; |
| 56 |
while (bitmask & 1) { |
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size++; |
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bitmask >>= 1; |
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} |
| 60 |
} |
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|
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class X11SystemDisplay: public SystemDisplay |
| 63 |
{ |
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byte * mXFrameBuffer; |
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GC mXGC; |
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XImage * mXImage; |
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XImage * mMenuXImage; |
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XImage * mMouseXImage; |
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Colormap mDefaultColormap; |
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|
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DisplayCharacteristics mXChar; |
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char *mTitle; |
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char mCurTitle[200]; |
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byte *mouseData; |
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byte *menuData; |
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|
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int bitsPerPixelToXBitmapPad(int bitsPerPixel) |
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{ |
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if (bitsPerPixel <= 8) { |
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return 8; |
| 81 |
} else if (bitsPerPixel <= 16) { |
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return 16; |
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} else { |
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return 32; |
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} |
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} |
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public: |
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X11SystemDisplay(const char *name, const DisplayCharacteristics &aClientChar, int redraw_ms) |
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:SystemDisplay(aClientChar, redraw_ms) |
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{ |
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if (bitsPerPixelToXBitmapPad(mClientChar.bytesPerPixel*8) != mClientChar.bytesPerPixel*8) { |
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ht_printf("nope. bytes per pixel is: %d. only 1,2 or 4 are allowed.\n", mClientChar.bytesPerPixel); |
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exit(1); |
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} |
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|
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// mouse |
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mouseData = (byte*)malloc(2 * 2 * mClientChar.bytesPerPixel); |
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memset(mouseData, 0, 2 * 2 * mClientChar.bytesPerPixel); |
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|
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// menu |
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// mMenuHeight = 28; |
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mMenuHeight = 0; |
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menuData = NULL; |
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|
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mXImage = NULL; |
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|
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mClientChar = aClientChar; |
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convertCharacteristicsToHost(mXChar, mClientChar); |
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|
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int screen_num = DefaultScreen(gX11Display); |
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gX11Window = XCreateSimpleWindow(gX11Display, |
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RootWindow(gX11Display, screen_num), 0, 0, |
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mClientChar.width, mClientChar.height+mMenuHeight, |
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0, BlackPixel(gX11Display, screen_num), |
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BlackPixel(gX11Display, screen_num)); |
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|
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XStoreName(gX11Display, gX11Window, name); |
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|
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XSetWindowAttributes attr; |
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attr.save_under = 1; |
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attr.backing_store = Always; |
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XChangeWindowAttributes(gX11Display, gX11Window, CWSaveUnder|CWBackingStore, &attr); |
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|
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mDefaultColormap = DefaultColormap(gX11Display, screen_num); |
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|
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XSelectInput(gX11Display, gX11Window, |
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ExposureMask | KeyPressMask | KeyReleaseMask |
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| ButtonPressMask | ButtonReleaseMask | PointerMotionMask |
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| EnterWindowMask | LeaveWindowMask | StructureNotifyMask |
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| VisibilityChangeMask | FocusChangeMask); |
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|
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XMapWindow(gX11Display, gX11Window); |
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|
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XEvent event; |
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XNextEvent(gX11Display, &event); |
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|
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uint XDepth = mXChar.redSize + mXChar.greenSize + mXChar.blueSize; |
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|
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mMouseXImage = XCreateImage(gX11Display, DefaultVisual(gX11Display, screen_num), |
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XDepth, ZPixmap, 0, (char*)mouseData, |
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2, 2, |
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mXChar.bytesPerPixel*8, 0); |
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|
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mXGC = DefaultGC(gX11Display, screen_num); |
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|
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// setup interna |
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gFrameBuffer = NULL; |
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reinitChar(); |
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|
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// clear fb once on startup |
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memset(gFrameBuffer, 0, mClientChar.width * |
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mClientChar.height * mClientChar.bytesPerPixel); |
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|
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#if 0 |
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fprintf(stderr, "X Server display characteristics:\n"); |
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dumpDisplayChar(mXChar); |
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fprintf(stderr, "Client display characteristics:\n"); |
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dumpDisplayChar(mClientChar); |
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#endif |
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|
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// finally set title |
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mTitle = strdup(name); |
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} |
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|
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virtual ~X11SystemDisplay() |
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{ |
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gX11Display = NULL; |
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free(mTitle); |
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free(mouseData); |
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free(gFrameBuffer); |
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if (menuData) free(menuData); |
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} |
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|
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virtual void finishMenu() |
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{ |
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menuData = (byte*)malloc(mXChar.width * |
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mMenuHeight * mXChar.bytesPerPixel); |
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mMenuXImage = XCreateImage(gX11Display, DefaultVisual(gX11Display, DefaultScreen(gX11Display)), |
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mXChar.redSize+mXChar.greenSize+mXChar.blueSize, ZPixmap, 0, (char*)menuData, |
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mXChar.width, mMenuHeight, |
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mXChar.bytesPerPixel*8, 0); |
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|
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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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// convertDisplayClientToServer(0, mClientChar.height-1); |
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if (mXFrameBuffer) { |
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sys_convert_display(mClientChar, mXChar, gFrameBuffer, mXFrameBuffer, 0, mClientChar.height-1); |
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memmove(menuData, mXFrameBuffer, mXChar.width * mMenuHeight |
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* mXChar.bytesPerPixel); |
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} else { |
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memmove(menuData, gFrameBuffer, mXChar.width * mMenuHeight |
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* mXChar.bytesPerPixel); |
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} |
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} |
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|
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/* |
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* must be called with gX11Mutex locked |
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*/ |
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void reinitChar() |
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{ |
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gFrameBuffer = (byte*)realloc(gFrameBuffer, mClientChar.width * |
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mClientChar.height * mClientChar.bytesPerPixel); |
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damageFrameBufferAll(); |
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|
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mHomeMouseX = mClientChar.width / 2; |
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mHomeMouseY = mClientChar.height / 2; |
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|
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uint XDepth = mXChar.redSize + mXChar.greenSize + mXChar.blueSize; |
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int screen_num = DefaultScreen(gX11Display); |
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|
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if (mXImage) XDestroyImage(mXImage); // no need to free gXFrameBuffer. XDeleteImage does this. |
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|
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// Maybe client and (X-)server display characteristics match |
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if (0 && memcmp(&mClientChar, &mXChar, sizeof (mClientChar)) == 0) { |
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// fprintf(stderr, "client and server display characteristics match!!\n"); |
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mXFrameBuffer = NULL; |
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|
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mXImage = XCreateImage(gX11Display, DefaultVisual(gX11Display, screen_num), |
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XDepth, ZPixmap, 0, (char*)gFrameBuffer, |
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mXChar.width, mXChar.height, |
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mXChar.bytesPerPixel*8, 0); |
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} else { |
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// Otherwise we need a second framebuffer |
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// fprintf(stderr, "client and server display characteristics DONT match :-(\n"); |
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mXFrameBuffer = (byte*)malloc(mXChar.width |
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* mXChar.height * mXChar.bytesPerPixel); |
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|
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mXImage = XCreateImage(gX11Display, DefaultVisual(gX11Display, screen_num), |
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XDepth, ZPixmap, 0, (char*)mXFrameBuffer, |
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mXChar.width, mXChar.height, |
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mXChar.bytesPerPixel*8, 0); |
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} |
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} |
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|
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virtual void convertCharacteristicsToHost(DisplayCharacteristics &aHostChar, const DisplayCharacteristics &aClientChar) |
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{ |
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sys_lock_mutex(gX11Mutex); |
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int screen_num = DefaultScreen(gX11Display); |
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|
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XVisualInfo info_tmpl; |
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int ninfo; |
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info_tmpl.screen = screen_num; |
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info_tmpl.visualid = XVisualIDFromVisual(DefaultVisual(gX11Display, screen_num)); |
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XVisualInfo *info = XGetVisualInfo(gX11Display, |
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VisualScreenMask | VisualIDMask, &info_tmpl, &ninfo); |
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/* |
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fprintf(stderr, "got %d XVisualInfo's:\n", ninfo); |
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for (int i=0; i<ninfo; i++) { |
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fprintf(stderr, "XVisualInfo %d:\n", i); |
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fprintf(stderr, "\tscreen = %d:\n", info[i].screen); |
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fprintf(stderr, "\tdepth = %d:\n", info[i].depth); |
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fprintf(stderr, "\tred = %x:\n", info[i].red_mask); |
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fprintf(stderr, "\tgreen = %x:\n", info[i].green_mask); |
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fprintf(stderr, "\tblue = %x:\n", info[i].blue_mask); |
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} |
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*/ |
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// generate X characteristics from visual info |
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aHostChar = aClientChar; |
| 260 |
if (ninfo) { |
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aHostChar.bytesPerPixel = bitsPerPixelToXBitmapPad(info->depth) >> 3; |
| 262 |
aHostChar.scanLineLength = aHostChar.bytesPerPixel * aHostChar.width; |
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findMaskShiftAndSize(aHostChar.redShift, aHostChar.redSize, info->red_mask); |
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findMaskShiftAndSize(aHostChar.greenShift, aHostChar.greenSize, info->green_mask); |
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findMaskShiftAndSize(aHostChar.blueShift, aHostChar.blueSize, info->blue_mask); |
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} else { |
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sys_unlock_mutex(gX11Mutex); |
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printf("ARGH! Couldn't get XVisualInfo...\n"); |
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exit(1); |
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} |
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XFree(info); |
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sys_unlock_mutex(gX11Mutex); |
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} |
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|
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virtual bool changeResolution(const DisplayCharacteristics &aClientChar) |
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{ |
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if (aClientChar.width == mClientChar.width |
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&& aClientChar.height == mClientChar.height |
| 279 |
&& aClientChar.bytesPerPixel == mClientChar.bytesPerPixel) { |
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return true; |
| 281 |
} else { |
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return false; |
| 283 |
} |
| 284 |
} |
| 285 |
|
| 286 |
virtual bool doChangeResolution(const DisplayCharacteristics &aClientChar) |
| 287 |
{ |
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/* |
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* I don't understand how XResizeWindow is supposed to work |
| 290 |
* If you understand, feel free to fix this: |
| 291 |
*/ |
| 292 |
DisplayCharacteristics oldClientChar = mClientChar; |
| 293 |
DisplayCharacteristics oldHostChar = mXChar; |
| 294 |
DisplayCharacteristics newXChar; |
| 295 |
|
| 296 |
convertCharacteristicsToHost(newXChar, aClientChar); |
| 297 |
sys_lock_mutex(gX11Mutex); |
| 298 |
mXChar = newXChar; |
| 299 |
mClientChar = aClientChar; |
| 300 |
if (bitsPerPixelToXBitmapPad(mXChar.bytesPerPixel*8) != mXChar.bytesPerPixel*8) { |
| 301 |
fprintf(stderr, "bitsPerPixelToXBitmapPad(%d) failed\n", mXChar.bytesPerPixel*8); |
| 302 |
mClientChar = oldClientChar; |
| 303 |
mXChar = oldHostChar; |
| 304 |
sys_unlock_mutex(gX11Mutex); |
| 305 |
return false; |
| 306 |
} |
| 307 |
|
| 308 |
XResizeWindow(gX11Display, gX11Window, mXChar.width, mXChar.height+mMenuHeight); |
| 309 |
|
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XSync(gX11Display, False); |
| 311 |
|
| 312 |
XWindowAttributes attr; |
| 313 |
if (!XGetWindowAttributes(gX11Display, gX11Window, &attr)) { |
| 314 |
fprintf(stderr, "Couldn't get X window size\n"); |
| 315 |
mClientChar = oldClientChar; |
| 316 |
mXChar = oldHostChar; |
| 317 |
XResizeWindow(gX11Display, gX11Window, mXChar.width, mXChar.height+mMenuHeight); |
| 318 |
sys_unlock_mutex(gX11Mutex); |
| 319 |
return false; |
| 320 |
} |
| 321 |
|
| 322 |
if ((int)attr.width < mXChar.width || (int)attr.height < (mXChar.height+mMenuHeight)) { |
| 323 |
fprintf(stderr, "Couldn't change X window size to %dx%d\n", mXChar.width, mXChar.height); |
| 324 |
fprintf(stderr, "Reported new size: %dx(%d+%d)\n", attr.width, attr.height-mMenuHeight, mMenuHeight); |
| 325 |
mClientChar = oldClientChar; |
| 326 |
mXChar = oldHostChar; |
| 327 |
XResizeWindow(gX11Display, gX11Window, mXChar.width, mXChar.height+mMenuHeight); |
| 328 |
sys_unlock_mutex(gX11Mutex); |
| 329 |
return false; |
| 330 |
} |
| 331 |
|
| 332 |
reinitChar(); |
| 333 |
sys_unlock_mutex(gX11Mutex); |
| 334 |
fprintf(stderr, "Change resolution OK\n"); |
| 335 |
return true; |
| 336 |
} |
| 337 |
|
| 338 |
virtual void getHostCharacteristics(Container &modes) |
| 339 |
{ |
| 340 |
// FIXME: implement me |
| 341 |
} |
| 342 |
|
| 343 |
virtual int getKeybLEDs() |
| 344 |
{ |
| 345 |
return 0; |
| 346 |
} |
| 347 |
|
| 348 |
virtual void setKeybLEDs(int leds) |
| 349 |
{ |
| 350 |
} |
| 351 |
|
| 352 |
virtual void updateTitle() |
| 353 |
{ |
| 354 |
String key; |
| 355 |
int key_toggle_mouse_grab = gKeyboard->getKeyConfig().key_toggle_mouse_grab; |
| 356 |
SystemKeyboard::convertKeycodeToString(key, key_toggle_mouse_grab); |
| 357 |
ht_snprintf(mCurTitle, sizeof mCurTitle, "%s - [%s %s mouse]", mTitle,key.contentChar(), (isMouseGrabbed() ? "disables" : "enables")); |
| 358 |
XTextProperty name_prop; |
| 359 |
char *mCurTitlep = mCurTitle; |
| 360 |
XStringListToTextProperty(&mCurTitlep, 1, &name_prop); |
| 361 |
XSetWMName(gX11Display, gX11Window, &name_prop); |
| 362 |
} |
| 363 |
|
| 364 |
virtual int toString(char *buf, int buflen) const |
| 365 |
{ |
| 366 |
return snprintf(buf, buflen, "POSIX X11"); |
| 367 |
} |
| 368 |
|
| 369 |
virtual void setMouseGrab(bool enable) |
| 370 |
{ |
| 371 |
SystemDisplay::setMouseGrab(enable); |
| 372 |
updateTitle(); |
| 373 |
if (enable) { |
| 374 |
mResetMouseX = mCurMouseX; |
| 375 |
mResetMouseY = mCurMouseY; |
| 376 |
|
| 377 |
static Cursor cursor; |
| 378 |
static bool cursor_created = false; |
| 379 |
|
| 380 |
static char shape_bits[16*16] = {0, }; |
| 381 |
static char mask_bits[16*16] = {0, }; |
| 382 |
|
| 383 |
if (!cursor_created) { |
| 384 |
Pixmap shape, mask; |
| 385 |
XColor white, black; |
| 386 |
shape = XCreatePixmapFromBitmapData(gX11Display, |
| 387 |
RootWindow(gX11Display, DefaultScreen(gX11Display)), |
| 388 |
shape_bits, 16, 16, 1, 0, 1); |
| 389 |
mask = XCreatePixmapFromBitmapData(gX11Display, |
| 390 |
RootWindow(gX11Display, DefaultScreen(gX11Display)), |
| 391 |
mask_bits, 16, 16, 1, 0, 1); |
| 392 |
XParseColor(gX11Display, mDefaultColormap, "black", &black); |
| 393 |
XParseColor(gX11Display, mDefaultColormap, "white", &white); |
| 394 |
cursor = XCreatePixmapCursor(gX11Display, shape, mask, |
| 395 |
&white, &black, 1, 1); |
| 396 |
cursor_created = true; |
| 397 |
} |
| 398 |
|
| 399 |
XDefineCursor(gX11Display, gX11Window, cursor); |
| 400 |
XWarpPointer(gX11Display, gX11Window, gX11Window, 0, 0, 0, 0, mHomeMouseX, mHomeMouseY); |
| 401 |
} else { |
| 402 |
XWarpPointer(gX11Display, gX11Window, gX11Window, 0, 0, 0, 0, mResetMouseX, mResetMouseY); |
| 403 |
XUndefineCursor(gX11Display, gX11Window); |
| 404 |
} |
| 405 |
} |
| 406 |
|
| 407 |
virtual void displayShow() |
| 408 |
{ |
| 409 |
if (!isExposed()) return; |
| 410 |
|
| 411 |
int firstDamagedLine, lastDamagedLine; |
| 412 |
// We've got problems with races here because gcard_write1/2/4 |
| 413 |
// might set gDamageAreaFirstAddr, gDamageAreaLastAddr. |
| 414 |
// We can't use mutexes in gcard for speed reasons. So we'll |
| 415 |
// try to minimize the probability of loosing the race. |
| 416 |
if (gDamageAreaFirstAddr > gDamageAreaLastAddr+3) { |
| 417 |
return; |
| 418 |
} |
| 419 |
uint damageAreaFirstAddr = gDamageAreaFirstAddr; |
| 420 |
uint damageAreaLastAddr = gDamageAreaLastAddr; |
| 421 |
healFrameBuffer(); |
| 422 |
// end of race |
| 423 |
damageAreaLastAddr += 3; // this is a hack. For speed reasons we |
| 424 |
// inaccurately set gDamageAreaLastAddr |
| 425 |
// to the first (not last) byte accessed |
| 426 |
// accesses are up to 4 bytes "long". |
| 427 |
|
| 428 |
firstDamagedLine = damageAreaFirstAddr / (mClientChar.width * mClientChar.bytesPerPixel); |
| 429 |
lastDamagedLine = damageAreaLastAddr / (mClientChar.width * mClientChar.bytesPerPixel); |
| 430 |
// Overflow may happen, because of the hack used above |
| 431 |
// and others, that set lastAddr = 0xfffffff0 (damageFrameBufferAll()) |
| 432 |
if (lastDamagedLine >= mClientChar.height) { |
| 433 |
lastDamagedLine = mClientChar.height-1; |
| 434 |
} |
| 435 |
|
| 436 |
if (mXFrameBuffer) { |
| 437 |
sys_convert_display(mClientChar, mXChar, gFrameBuffer, mXFrameBuffer, firstDamagedLine, lastDamagedLine); |
| 438 |
} |
| 439 |
|
| 440 |
sys_lock_mutex(gX11Mutex); |
| 441 |
// draw menu |
| 442 |
/* XPutImage(gX11Display, gX11Window, mXGC, mMenuXImage, 0, 0, 0, 0, |
| 443 |
mClientChar.width, |
| 444 |
mMenuHeight);*/ |
| 445 |
|
| 446 |
XPutImage(gX11Display, gX11Window, mXGC, mXImage, |
| 447 |
0, |
| 448 |
firstDamagedLine, |
| 449 |
0, |
| 450 |
mMenuHeight+firstDamagedLine, |
| 451 |
mClientChar.width, |
| 452 |
lastDamagedLine-firstDamagedLine+1); |
| 453 |
|
| 454 |
/* if (mHWCursorVisible) { |
| 455 |
XPutImage(gX11Display, gX11Window, mXGC, mMouseXImage, 0, 0, |
| 456 |
mHWCursorX, mHWCursorY, 2, 2); |
| 457 |
}*/ |
| 458 |
sys_unlock_mutex(gX11Mutex); |
| 459 |
} |
| 460 |
}; |
| 461 |
|
| 462 |
SystemDisplay *allocSystemDisplay(const char *title, const DisplayCharacteristics &chr, int redraw_ms, bool fullscreen) |
| 463 |
{ |
| 464 |
if (gDisplay) return NULL; |
| 465 |
return new X11SystemDisplay(title, chr, redraw_ms); |
| 466 |
} |
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