| 1 | /* |
| 2 | * Copyright © 1998 Keith Packard |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 5 | * documentation for any purpose is hereby granted without fee, provided that |
| 6 | * the above copyright notice appear in all copies and that both that |
| 7 | * copyright notice and this permission notice appear in supporting |
| 8 | * documentation, and that the name of Keith Packard not be used in |
| 9 | * advertising or publicity pertaining to distribution of the software without |
| 10 | * specific, written prior permission. Keith Packard makes no |
| 11 | * representations about the suitability of this software for any purpose. It |
| 12 | * is provided "as is" without express or implied warranty. |
| 13 | * |
| 14 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 16 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 20 | * PERFORMANCE OF THIS SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #ifdef HAVE_DIX_CONFIG_H |
| 24 | #include <dix-config.h> |
| 25 | #endif |
| 26 | |
| 27 | #include "fb.h" |
| 28 | |
| 29 | Bool |
| 30 | fbCloseScreen(ScreenPtr pScreen) |
| 31 | { |
| 32 | int d; |
| 33 | DepthPtr depths = pScreen->allowedDepths; |
| 34 | |
| 35 | fbDestroyGlyphCache(); |
| 36 | for (d = 0; d < pScreen->numDepths; d++) |
| 37 | free(depths[d].vids); |
| 38 | free(depths); |
| 39 | free(pScreen->visuals); |
| 40 | free(pScreen->devPrivate); |
| 41 | return TRUE; |
| 42 | } |
| 43 | |
| 44 | Bool |
| 45 | fbRealizeFont(ScreenPtr pScreen, FontPtr pFont) |
| 46 | { |
| 47 | return TRUE; |
| 48 | } |
| 49 | |
| 50 | Bool |
| 51 | fbUnrealizeFont(ScreenPtr pScreen, FontPtr pFont) |
| 52 | { |
| 53 | return TRUE; |
| 54 | } |
| 55 | |
| 56 | void |
| 57 | fbQueryBestSize(int class, |
| 58 | unsigned short *width, unsigned short *height, |
| 59 | ScreenPtr pScreen) |
| 60 | { |
| 61 | unsigned short w; |
| 62 | |
| 63 | switch (class) { |
| 64 | case CursorShape: |
| 65 | if (*width > pScreen->width) |
| 66 | *width = pScreen->width; |
| 67 | if (*height > pScreen->height) |
| 68 | *height = pScreen->height; |
| 69 | break; |
| 70 | case TileShape: |
| 71 | case StippleShape: |
| 72 | w = *width; |
| 73 | if ((w & (w - 1)) && w < FB_UNIT) { |
| 74 | for (w = 1; w < *width; w <<= 1); |
| 75 | *width = w; |
| 76 | } |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | PixmapPtr |
| 81 | _fbGetWindowPixmap(WindowPtr pWindow) |
| 82 | { |
| 83 | return fbGetWindowPixmap(pWindow); |
| 84 | } |
| 85 | |
| 86 | void |
| 87 | _fbSetWindowPixmap(WindowPtr pWindow, PixmapPtr pPixmap) |
| 88 | { |
| 89 | dixSetPrivate(&pWindow->devPrivates, fbGetWinPrivateKey(pWindow), pPixmap); |
| 90 | } |
| 91 | |
| 92 | Bool |
| 93 | fbSetupScreen(ScreenPtr pScreen, pointer pbits, /* pointer to screen bitmap */ |
| 94 | int xsize, /* in pixels */ |
| 95 | int ysize, int dpix, /* dots per inch */ |
| 96 | int dpiy, int width, /* pixel width of frame buffer */ |
| 97 | int bpp) |
| 98 | { /* bits per pixel for screen */ |
| 99 | if (!fbAllocatePrivates(pScreen)) |
| 100 | return FALSE; |
| 101 | pScreen->defColormap = FakeClientID(0); |
| 102 | /* let CreateDefColormap do whatever it wants for pixels */ |
| 103 | pScreen->blackPixel = pScreen->whitePixel = (Pixel) 0; |
| 104 | pScreen->QueryBestSize = fbQueryBestSize; |
| 105 | /* SaveScreen */ |
| 106 | pScreen->GetImage = fbGetImage; |
| 107 | pScreen->GetSpans = fbGetSpans; |
| 108 | pScreen->CreateWindow = fbCreateWindow; |
| 109 | pScreen->DestroyWindow = fbDestroyWindow; |
| 110 | pScreen->PositionWindow = fbPositionWindow; |
| 111 | pScreen->ChangeWindowAttributes = fbChangeWindowAttributes; |
| 112 | pScreen->RealizeWindow = fbMapWindow; |
| 113 | pScreen->UnrealizeWindow = fbUnmapWindow; |
| 114 | pScreen->CopyWindow = fbCopyWindow; |
| 115 | pScreen->CreatePixmap = fbCreatePixmap; |
| 116 | pScreen->DestroyPixmap = fbDestroyPixmap; |
| 117 | pScreen->RealizeFont = fbRealizeFont; |
| 118 | pScreen->UnrealizeFont = fbUnrealizeFont; |
| 119 | pScreen->CreateGC = fbCreateGC; |
| 120 | pScreen->CreateColormap = fbInitializeColormap; |
| 121 | pScreen->DestroyColormap = (void (*)(ColormapPtr)) NoopDDA; |
| 122 | pScreen->InstallColormap = fbInstallColormap; |
| 123 | pScreen->UninstallColormap = fbUninstallColormap; |
| 124 | pScreen->ListInstalledColormaps = fbListInstalledColormaps; |
| 125 | pScreen->StoreColors = (void (*)(ColormapPtr, int, xColorItem *)) NoopDDA; |
| 126 | pScreen->ResolveColor = fbResolveColor; |
| 127 | pScreen->BitmapToRegion = fbPixmapToRegion; |
| 128 | |
| 129 | pScreen->GetWindowPixmap = _fbGetWindowPixmap; |
| 130 | pScreen->SetWindowPixmap = _fbSetWindowPixmap; |
| 131 | |
| 132 | return TRUE; |
| 133 | } |
| 134 | |
| 135 | #ifdef FB_ACCESS_WRAPPER |
| 136 | Bool |
| 137 | wfbFinishScreenInit(ScreenPtr pScreen, |
| 138 | pointer pbits, |
| 139 | int xsize, |
| 140 | int ysize, |
| 141 | int dpix, |
| 142 | int dpiy, |
| 143 | int width, |
| 144 | int bpp, |
| 145 | SetupWrapProcPtr setupWrap, FinishWrapProcPtr finishWrap) |
| 146 | #else |
| 147 | Bool |
| 148 | fbFinishScreenInit(ScreenPtr pScreen, |
| 149 | pointer pbits, |
| 150 | int xsize, int ysize, int dpix, int dpiy, int width, int bpp) |
| 151 | #endif |
| 152 | { |
| 153 | VisualPtr visuals; |
| 154 | DepthPtr depths; |
| 155 | int nvisuals; |
| 156 | int ndepths; |
| 157 | int rootdepth; |
| 158 | VisualID defaultVisual; |
| 159 | int imagebpp = bpp; |
| 160 | |
| 161 | #ifdef FB_DEBUG |
| 162 | int stride; |
| 163 | |
| 164 | ysize -= 2; |
| 165 | stride = (width * bpp) / 8; |
| 166 | fbSetBits((FbStip *) pbits, stride / sizeof(FbStip), FB_HEAD_BITS); |
| 167 | pbits = (void *) ((char *) pbits + stride); |
| 168 | fbSetBits((FbStip *) ((char *) pbits + stride * ysize), |
| 169 | stride / sizeof(FbStip), FB_TAIL_BITS); |
| 170 | #endif |
| 171 | /* |
| 172 | * By default, a 24bpp screen will use 32bpp images, this avoids |
| 173 | * problems with many applications which just can't handle packed |
| 174 | * pixels. If you want real 24bit images, include a 24bpp |
| 175 | * format in the pixmap formats |
| 176 | */ |
| 177 | if (bpp == 24) { |
| 178 | int f; |
| 179 | |
| 180 | imagebpp = 32; |
| 181 | /* |
| 182 | * Check to see if we're advertising a 24bpp image format, |
| 183 | * in which case windows will use it in preference to a 32 bit |
| 184 | * format. |
| 185 | */ |
| 186 | for (f = 0; f < screenInfo.numPixmapFormats; f++) { |
| 187 | if (screenInfo.formats[f].bitsPerPixel == 24) { |
| 188 | imagebpp = 24; |
| 189 | break; |
| 190 | } |
| 191 | } |
| 192 | } |
| 193 | if (imagebpp == 32) { |
| 194 | fbGetScreenPrivate(pScreen)->win32bpp = bpp; |
| 195 | fbGetScreenPrivate(pScreen)->pix32bpp = bpp; |
| 196 | } |
| 197 | else { |
| 198 | fbGetScreenPrivate(pScreen)->win32bpp = 32; |
| 199 | fbGetScreenPrivate(pScreen)->pix32bpp = 32; |
| 200 | } |
| 201 | #ifdef FB_ACCESS_WRAPPER |
| 202 | fbGetScreenPrivate(pScreen)->setupWrap = setupWrap; |
| 203 | fbGetScreenPrivate(pScreen)->finishWrap = finishWrap; |
| 204 | #endif |
| 205 | rootdepth = 0; |
| 206 | if (!fbInitVisuals(&visuals, &depths, &nvisuals, &ndepths, &rootdepth, |
| 207 | &defaultVisual, ((unsigned long) 1 << (imagebpp - 1)), |
| 208 | 8)) |
| 209 | return FALSE; |
| 210 | if (!miScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width, |
| 211 | rootdepth, ndepths, depths, |
| 212 | defaultVisual, nvisuals, visuals)) |
| 213 | return FALSE; |
| 214 | /* overwrite miCloseScreen with our own */ |
| 215 | pScreen->CloseScreen = fbCloseScreen; |
| 216 | if (bpp == 24 && imagebpp == 32) { |
| 217 | pScreen->ModifyPixmapHeader = fb24_32ModifyPixmapHeader; |
| 218 | pScreen->CreateScreenResources = fb24_32CreateScreenResources; |
| 219 | } |
| 220 | return TRUE; |
| 221 | } |
| 222 | |
| 223 | /* dts * (inch/dot) * (25.4 mm / inch) = mm */ |
| 224 | #ifdef FB_ACCESS_WRAPPER |
| 225 | Bool |
| 226 | wfbScreenInit(ScreenPtr pScreen, |
| 227 | pointer pbits, |
| 228 | int xsize, |
| 229 | int ysize, |
| 230 | int dpix, |
| 231 | int dpiy, |
| 232 | int width, |
| 233 | int bpp, SetupWrapProcPtr setupWrap, FinishWrapProcPtr finishWrap) |
| 234 | { |
| 235 | if (!fbSetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy, width, bpp)) |
| 236 | return FALSE; |
| 237 | if (!wfbFinishScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, |
| 238 | width, bpp, setupWrap, finishWrap)) |
| 239 | return FALSE; |
| 240 | return TRUE; |
| 241 | } |
| 242 | #else |
| 243 | Bool |
| 244 | fbScreenInit(ScreenPtr pScreen, |
| 245 | pointer pbits, |
| 246 | int xsize, int ysize, int dpix, int dpiy, int width, int bpp) |
| 247 | { |
| 248 | if (!fbSetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy, width, bpp)) |
| 249 | return FALSE; |
| 250 | if (!fbFinishScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, |
| 251 | width, bpp)) |
| 252 | return FALSE; |
| 253 | return TRUE; |
| 254 | } |
| 255 | #endif |