| 1 | | #ifdef HAVE_CONFIG_H |
| 2 | | #include "config.h" |
| 3 | | #endif |
| 4 | | |
| 5 | | #include "xf86.h" |
| 6 | | #include "xf86_OSproc.h" |
| 7 | | #include "dgaproc.h" |
| 8 | | #include "dummy.h" |
| 9 | | |
| 10 | | static Bool DUMMY_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **, |
| 11 | | int *, int *, int *); |
| 12 | | static Bool DUMMY_SetMode(ScrnInfoPtr, DGAModePtr); |
| 13 | | static int DUMMY_GetViewport(ScrnInfoPtr); |
| 14 | | static void DUMMY_SetViewport(ScrnInfoPtr, int, int, int); |
| 15 | | |
| 16 | | static |
| 17 | | DGAFunctionRec DUMMYDGAFuncs = { |
| 18 | | DUMMY_OpenFramebuffer, |
| 19 | | NULL, |
| 20 | | DUMMY_SetMode, |
| 21 | | DUMMY_SetViewport, |
| 22 | | DUMMY_GetViewport, |
| 23 | | NULL, |
| 24 | | NULL, |
| 25 | | NULL, |
| 26 | | #if 0 |
| 27 | | DUMMY_BlitTransRect |
| 28 | | #else |
| 29 | | NULL |
| 30 | | #endif |
| 31 | | }; |
| 32 | | |
| 33 | | Bool |
| 34 | | DUMMYDGAInit(ScreenPtr pScreen) |
| 35 | | { |
| 36 | | ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen); |
| 37 | | DUMMYPtr pDUMMY = DUMMYPTR(pScrn); |
| 38 | | DGAModePtr modes = NULL, newmodes = NULL, currentMode; |
| 39 | | DisplayModePtr pMode, firstMode; |
| 40 | | int Bpp = pScrn->bitsPerPixel >> 3; |
| 41 | | int num = 0, imlines, pixlines; |
| 42 | | |
| 43 | | imlines = (pScrn->videoRam * 1024) / |
| 44 | | (pScrn->displayWidth * (pScrn->bitsPerPixel >> 3)); |
| 45 | | |
| 46 | | pixlines = imlines; |
| 47 | | |
| 48 | | pMode = firstMode = pScrn->modes; |
| 49 | | |
| 50 | | while(pMode) { |
| 51 | | |
| 52 | | newmodes = realloc(modes, (num + 1) * sizeof(DGAModeRec)); |
| 53 | | |
| 54 | | if(!newmodes) { |
| 55 | | free(modes); |
| 56 | | return FALSE; |
| 57 | | } |
| 58 | | modes = newmodes; |
| 59 | | |
| 60 | | currentMode = modes + num; |
| 61 | | num++; |
| 62 | | |
| 63 | | currentMode->mode = pMode; |
| 64 | | currentMode->flags = DGA_CONCURRENT_ACCESS | DGA_PIXMAP_AVAILABLE; |
| 65 | | if(pMode->Flags & V_DBLSCAN) |
| 66 | | currentMode->flags |= DGA_DOUBLESCAN; |
| 67 | | if(pMode->Flags & V_INTERLACE) |
| 68 | | currentMode->flags |= DGA_INTERLACED; |
| 69 | | currentMode->byteOrder = pScrn->imageByteOrder; |
| 70 | | currentMode->depth = pScrn->depth; |
| 71 | | currentMode->bitsPerPixel = pScrn->bitsPerPixel; |
| 72 | | currentMode->red_mask = pScrn->mask.red; |
| 73 | | currentMode->green_mask = pScrn->mask.green; |
| 74 | | currentMode->blue_mask = pScrn->mask.blue; |
| 75 | | currentMode->visualClass = (Bpp == 1) ? PseudoColor : TrueColor; |
| 76 | | currentMode->viewportWidth = pMode->HDisplay; |
| 77 | | currentMode->viewportHeight = pMode->VDisplay; |
| 78 | | currentMode->xViewportStep = 1; |
| 79 | | currentMode->yViewportStep = 1; |
| 80 | | currentMode->viewportFlags = DGA_FLIP_RETRACE; |
| 81 | | currentMode->offset = 0; |
| 82 | | currentMode->address = (unsigned char *)pDUMMY->FBBase; |
| 83 | | |
| 84 | | currentMode->bytesPerScanline = |
| 85 | | ((pScrn->displayWidth * Bpp) + 3) & ~3L; |
| 86 | | currentMode->imageWidth = pScrn->displayWidth; |
| 87 | | currentMode->imageHeight = imlines; |
| 88 | | currentMode->pixmapWidth = currentMode->imageWidth; |
| 89 | | currentMode->pixmapHeight = pixlines; |
| 90 | | currentMode->maxViewportX = currentMode->imageWidth - |
| 91 | | currentMode->viewportWidth; |
| 92 | | currentMode->maxViewportY = currentMode->imageHeight - |
| 93 | | currentMode->viewportHeight; |
| 94 | | |
| 95 | | pMode = pMode->next; |
| 96 | | if(pMode == firstMode) |
| 97 | | break; |
| 98 | | } |
| 99 | | |
| 100 | | pDUMMY->numDGAModes = num; |
| 101 | | pDUMMY->DGAModes = modes; |
| 102 | | |
| 103 | | return DGAInit(pScreen, &DUMMYDGAFuncs, modes, num); |
| 104 | | } |
| 105 | | |
| 106 | | static DisplayModePtr DUMMYSavedDGAModes[MAXSCREENS]; |
| 107 | | |
| 108 | | static Bool |
| 109 | | DUMMY_SetMode( |
| 110 | | ScrnInfoPtr pScrn, |
| 111 | | DGAModePtr pMode |
| 112 | | ){ |
| 113 | | int index = pScrn->pScreen->myNum; |
| 114 | | DUMMYPtr pDUMMY = DUMMYPTR(pScrn); |
| 115 | | |
| 116 | | if(!pMode) { /* restore the original mode */ |
| 117 | | if(pDUMMY->DGAactive) { |
| 118 | | pScrn->currentMode = DUMMYSavedDGAModes[index]; |
| 119 | | DUMMYSwitchMode(SWITCH_MODE_ARGS(pScrn, pScrn->currentMode)); |
| 120 | | DUMMYAdjustFrame(ADJUST_FRAME_ARGS(pScrn, 0, 0)); |
| 121 | | pDUMMY->DGAactive = FALSE; |
| 122 | | } |
| 123 | | } else { |
| 124 | | if(!pDUMMY->DGAactive) { /* save the old parameters */ |
| 125 | | DUMMYSavedDGAModes[index] = pScrn->currentMode; |
| 126 | | pDUMMY->DGAactive = TRUE; |
| 127 | | } |
| 128 | | |
| 129 | | DUMMYSwitchMode(SWITCH_MODE_ARGS(pScrn, pMode->mode)); |
| 130 | | } |
| 131 | | |
| 132 | | return TRUE; |
| 133 | | } |
| 134 | | |
| 135 | | static int |
| 136 | | DUMMY_GetViewport( |
| 137 | | ScrnInfoPtr pScrn |
| 138 | | ){ |
| 139 | | DUMMYPtr pDUMMY = DUMMYPTR(pScrn); |
| 140 | | |
| 141 | | return pDUMMY->DGAViewportStatus; |
| 142 | | } |
| 143 | | |
| 144 | | static void |
| 145 | | DUMMY_SetViewport( |
| 146 | | ScrnInfoPtr pScrn, |
| 147 | | int x, int y, |
| 148 | | int flags |
| 149 | | ){ |
| 150 | | DUMMYPtr pDUMMY = DUMMYPTR(pScrn); |
| 151 | | |
| 152 | | DUMMYAdjustFrame(ADJUST_FRAME_ARGS(pScrn, x, y)); |
| 153 | | pDUMMY->DGAViewportStatus = 0; |
| 154 | | } |
| 155 | | |
| 156 | | |
| 157 | | static Bool |
| 158 | | DUMMY_OpenFramebuffer( |
| 159 | | ScrnInfoPtr pScrn, |
| 160 | | char **name, |
| 161 | | unsigned char **mem, |
| 162 | | int *size, |
| 163 | | int *offset, |
| 164 | | int *flags |
| 165 | | ){ |
| 166 | | DUMMYPtr pDUMMY = DUMMYPTR(pScrn); |
| 167 | | |
| 168 | | *name = NULL; /* no special device */ |
| 169 | | *mem = (unsigned char*)pDUMMY->FBBase; |
| 170 | | *size = pScrn->videoRam * 1024; |
| 171 | | *offset = 0; |
| 172 | | *flags = DGA_NEED_ROOT; |
| 173 | | |
| 174 | | return TRUE; |
| 175 | | } |
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