diff options
Diffstat (limited to 'src/r128_dga.c')
| -rw-r--r-- | src/r128_dga.c | 397 |
1 files changed, 397 insertions, 0 deletions
diff --git a/src/r128_dga.c b/src/r128_dga.c new file mode 100644 index 0000000..6c0013a --- /dev/null +++ b/src/r128_dga.c @@ -0,0 +1,397 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/r128_dga.c,v 1.9 2002/10/30 12:52:12 alanh Exp $ */ +/* + * Authors: + * Ove Kåven <ovek@transgaming.com>, + * borrowing some code from the Chips and MGA drivers. + */ + + /* Driver data structures */ +#include "r128.h" +#include "r128_probe.h" + + /* X and server generic header files */ +#include "xf86.h" + + /* DGA support */ +#include "dgaproc.h" + +#ifdef XF86DRI +#include "r128_common.h" +#endif + +static Bool R128_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **, + int *, int *, int *); +static Bool R128_SetMode(ScrnInfoPtr, DGAModePtr); +static int R128_GetViewport(ScrnInfoPtr); +static void R128_SetViewport(ScrnInfoPtr, int, int, int); +static void R128_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long); +static void R128_BlitRect(ScrnInfoPtr, int, int, int, int, int, int); +static void R128_BlitTransRect(ScrnInfoPtr, int, int, int, int, int, int, + unsigned long); + +static DGAModePtr R128SetupDGAMode(ScrnInfoPtr pScrn, + DGAModePtr modes, + int *num, + int bitsPerPixel, + int depth, + Bool pixmap, + int secondPitch, + unsigned long red, + unsigned long green, + unsigned long blue, + short visualClass) +{ + R128InfoPtr info = R128PTR(pScrn); + DGAModePtr newmodes = NULL; + DGAModePtr currentMode; + DisplayModePtr pMode; + DisplayModePtr firstMode; + unsigned int size; + int pitch; + int Bpp = bitsPerPixel >> 3; + +SECOND_PASS: + + pMode = firstMode = pScrn->modes; + + while (1) { + pitch = pScrn->displayWidth; + size = pitch * Bpp * pMode->VDisplay; + + if ((!secondPitch || (pitch != secondPitch)) && + (size <= info->FbMapSize)) { + + if (secondPitch) + pitch = secondPitch; + + if (!(newmodes = xrealloc(modes, (*num + 1) * sizeof(DGAModeRec)))) + break; + + modes = newmodes; + currentMode = modes + *num; + + currentMode->mode = pMode; + currentMode->flags = DGA_CONCURRENT_ACCESS; + + if (pixmap) + currentMode->flags |= DGA_PIXMAP_AVAILABLE; + + if (info->accel) { + if (info->accel->SetupForSolidFill && + info->accel->SubsequentSolidFillRect) + currentMode->flags |= DGA_FILL_RECT; + if (info->accel->SetupForScreenToScreenCopy && + info->accel->SubsequentScreenToScreenCopy) + currentMode->flags |= DGA_BLIT_RECT | DGA_BLIT_RECT_TRANS; + if (currentMode->flags & + (DGA_PIXMAP_AVAILABLE | DGA_FILL_RECT | + DGA_BLIT_RECT | DGA_BLIT_RECT_TRANS)) + currentMode->flags &= ~DGA_CONCURRENT_ACCESS; + } + if (pMode->Flags & V_DBLSCAN) + currentMode->flags |= DGA_DOUBLESCAN; + if (pMode->Flags & V_INTERLACE) + currentMode->flags |= DGA_INTERLACED; + + currentMode->byteOrder = pScrn->imageByteOrder; + currentMode->depth = depth; + currentMode->bitsPerPixel = bitsPerPixel; + currentMode->red_mask = red; + currentMode->green_mask = green; + currentMode->blue_mask = blue; + currentMode->visualClass = visualClass; + currentMode->viewportWidth = pMode->HDisplay; + currentMode->viewportHeight = pMode->VDisplay; + currentMode->xViewportStep = 8; + currentMode->yViewportStep = 1; + currentMode->viewportFlags = DGA_FLIP_RETRACE; + currentMode->offset = 0; + currentMode->address = (unsigned char*)info->LinearAddr; + currentMode->bytesPerScanline = pitch * Bpp; + currentMode->imageWidth = pitch; + currentMode->imageHeight = (info->FbMapSize + / currentMode->bytesPerScanline); + currentMode->pixmapWidth = currentMode->imageWidth; + currentMode->pixmapHeight = currentMode->imageHeight; + currentMode->maxViewportX = (currentMode->imageWidth + - currentMode->viewportWidth); + /* this might need to get clamped to some maximum */ + currentMode->maxViewportY = (currentMode->imageHeight + - currentMode->viewportHeight); + (*num)++; + } + + pMode = pMode->next; + if (pMode == firstMode) + break; + } + + if (secondPitch) { + secondPitch = 0; + goto SECOND_PASS; + } + + return modes; +} + +Bool +R128DGAInit(ScreenPtr pScreen) +{ + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + R128InfoPtr info = R128PTR(pScrn); + DGAModePtr modes = NULL; + int num = 0; + + /* 8 */ + modes = R128SetupDGAMode (pScrn, modes, &num, 8, 8, + (pScrn->bitsPerPixel == 8), + (pScrn->bitsPerPixel != 8) ? 0 : pScrn->displayWidth, + 0, 0, 0, PseudoColor); + + /* 15 */ + modes = R128SetupDGAMode (pScrn, modes, &num, 16, 15, + (pScrn->bitsPerPixel == 16), + (pScrn->depth != 15) ? 0 : pScrn->displayWidth, + 0x7c00, 0x03e0, 0x001f, TrueColor); + + modes = R128SetupDGAMode (pScrn, modes, &num, 16, 15, + (pScrn->bitsPerPixel == 16), + (pScrn->depth != 15) ? 0 : pScrn->displayWidth, + 0x7c00, 0x03e0, 0x001f, DirectColor); + + /* 16 */ + modes = R128SetupDGAMode (pScrn, modes, &num, 16, 16, + (pScrn->bitsPerPixel == 16), + (pScrn->depth != 16) ? 0 : pScrn->displayWidth, + 0xf800, 0x07e0, 0x001f, TrueColor); + + modes = R128SetupDGAMode (pScrn, modes, &num, 16, 16, + (pScrn->bitsPerPixel == 16), + (pScrn->depth != 16) ? 0 : pScrn->displayWidth, + 0xf800, 0x07e0, 0x001f, DirectColor); + + /* 24 */ + modes = R128SetupDGAMode (pScrn, modes, &num, 24, 24, + (pScrn->bitsPerPixel == 24), + (pScrn->bitsPerPixel != 24) ? 0 : pScrn->displayWidth, + 0xff0000, 0x00ff00, 0x0000ff, TrueColor); + + modes = R128SetupDGAMode (pScrn, modes, &num, 24, 24, + (pScrn->bitsPerPixel == 24), + (pScrn->bitsPerPixel != 24) ? 0 : pScrn->displayWidth, + 0xff0000, 0x00ff00, 0x0000ff, DirectColor); + + /* 32 */ + modes = R128SetupDGAMode (pScrn, modes, &num, 32, 24, + (pScrn->bitsPerPixel == 32), + (pScrn->bitsPerPixel != 32) ? 0 : pScrn->displayWidth, + 0xff0000, 0x00ff00, 0x0000ff, TrueColor); + + modes = R128SetupDGAMode (pScrn, modes, &num, 32, 24, + (pScrn->bitsPerPixel == 32), + (pScrn->bitsPerPixel != 32) ? 0 : pScrn->displayWidth, + 0xff0000, 0x00ff00, 0x0000ff, DirectColor); + + info->numDGAModes = num; + info->DGAModes = modes; + + info->DGAFuncs.OpenFramebuffer = R128_OpenFramebuffer; + info->DGAFuncs.CloseFramebuffer = NULL; + info->DGAFuncs.SetMode = R128_SetMode; + info->DGAFuncs.SetViewport = R128_SetViewport; + info->DGAFuncs.GetViewport = R128_GetViewport; + + info->DGAFuncs.Sync = NULL; + info->DGAFuncs.FillRect = NULL; + info->DGAFuncs.BlitRect = NULL; + info->DGAFuncs.BlitTransRect = NULL; + + if (info->accel) { + info->DGAFuncs.Sync = info->accel->Sync; + if (info->accel->SetupForSolidFill && + info->accel->SubsequentSolidFillRect) + info->DGAFuncs.FillRect = R128_FillRect; + if (info->accel->SetupForScreenToScreenCopy && + info->accel->SubsequentScreenToScreenCopy) { + info->DGAFuncs.BlitRect = R128_BlitRect; + info->DGAFuncs.BlitTransRect = R128_BlitTransRect; + } + } + + return DGAInit(pScreen, &(info->DGAFuncs), modes, num); +} + + +static Bool +R128_SetMode( + ScrnInfoPtr pScrn, + DGAModePtr pMode +){ + static R128FBLayout SavedLayouts[MAXSCREENS]; + int indx = pScrn->pScreen->myNum; + R128InfoPtr info = R128PTR(pScrn); + + if(!pMode) { /* restore the original mode */ + /* put the ScreenParameters back */ + if(info->DGAactive) + memcpy(&info->CurrentLayout, &SavedLayouts[indx], sizeof(R128FBLayout)); + + pScrn->currentMode = info->CurrentLayout.mode; + + pScrn->SwitchMode(indx, pScrn->currentMode, 0); +#ifdef XF86DRI + if (info->directRenderingEnabled) { + R128CCE_STOP(pScrn, info); + } +#endif + if (info->accelOn) + R128EngineInit(pScrn); +#ifdef XF86DRI + if (info->directRenderingEnabled) { + R128CCE_START(pScrn, info); + } +#endif + pScrn->AdjustFrame(indx, 0, 0, 0); + info->DGAactive = FALSE; + } else { + if(!info->DGAactive) { /* save the old parameters */ + memcpy(&SavedLayouts[indx], &info->CurrentLayout, sizeof(R128FBLayout)); + info->DGAactive = TRUE; + } + + info->CurrentLayout.bitsPerPixel = pMode->bitsPerPixel; + info->CurrentLayout.depth = pMode->depth; + info->CurrentLayout.displayWidth = pMode->bytesPerScanline / + (pMode->bitsPerPixel >> 3); + info->CurrentLayout.pixel_bytes = pMode->bitsPerPixel / 8; + info->CurrentLayout.pixel_code = (pMode->bitsPerPixel != 16 + ? pMode->bitsPerPixel + : pMode->depth); + /* R128ModeInit() will set the mode field */ + + pScrn->SwitchMode(indx, pMode->mode, 0); + +#ifdef XF86DRI + if (info->directRenderingEnabled) { + R128CCE_STOP(pScrn, info); + } +#endif + if (info->accelOn) + R128EngineInit(pScrn); +#ifdef XF86DRI + if (info->directRenderingEnabled) { + R128CCE_START(pScrn, info); + } +#endif + } + + return TRUE; +} + + + +static int +R128_GetViewport( + ScrnInfoPtr pScrn +){ + R128InfoPtr info = R128PTR(pScrn); + + return info->DGAViewportStatus; +} + + +static void +R128_SetViewport( + ScrnInfoPtr pScrn, + int x, int y, + int flags +){ + R128InfoPtr info = R128PTR(pScrn); + + pScrn->AdjustFrame(pScrn->pScreen->myNum, x, y, flags); + info->DGAViewportStatus = 0; /* FIXME */ +} + + +static void +R128_FillRect ( + ScrnInfoPtr pScrn, + int x, int y, int w, int h, + unsigned long color +){ + R128InfoPtr info = R128PTR(pScrn); + + (*info->accel->SetupForSolidFill)(pScrn, color, GXcopy, (CARD32)(~0)); + (*info->accel->SubsequentSolidFillRect)(pScrn, x, y, w, h); + + if (pScrn->bitsPerPixel == info->CurrentLayout.bitsPerPixel) + SET_SYNC_FLAG(info->accel); +} + +static void +R128_BlitRect( + ScrnInfoPtr pScrn, + int srcx, int srcy, + int w, int h, + int dstx, int dsty +){ + R128InfoPtr info = R128PTR(pScrn); + int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1; + int ydir = (srcy < dsty) ? -1 : 1; + + (*info->accel->SetupForScreenToScreenCopy)( + pScrn, xdir, ydir, GXcopy, (CARD32)(~0), -1); + (*info->accel->SubsequentScreenToScreenCopy)( + pScrn, srcx, srcy, dstx, dsty, w, h); + + if (pScrn->bitsPerPixel == info->CurrentLayout.bitsPerPixel) + SET_SYNC_FLAG(info->accel); +} + + +static void +R128_BlitTransRect( + ScrnInfoPtr pScrn, + int srcx, int srcy, + int w, int h, + int dstx, int dsty, + unsigned long color +){ + R128InfoPtr info = R128PTR(pScrn); + int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1; + int ydir = (srcy < dsty) ? -1 : 1; + + info->XAAForceTransBlit = TRUE; + + (*info->accel->SetupForScreenToScreenCopy)( + pScrn, xdir, ydir, GXcopy, (CARD32)(~0), color); + + info->XAAForceTransBlit = FALSE; + + (*info->accel->SubsequentScreenToScreenCopy)( + pScrn, srcx, srcy, dstx, dsty, w, h); + + if (pScrn->bitsPerPixel == info->CurrentLayout.bitsPerPixel) + SET_SYNC_FLAG(info->accel); +} + + +static Bool +R128_OpenFramebuffer( + ScrnInfoPtr pScrn, + char **name, + unsigned char **mem, + int *size, + int *offset, + int *flags +){ + R128InfoPtr info = R128PTR(pScrn); + + *name = NULL; /* no special device */ + *mem = (unsigned char*)info->LinearAddr; + *size = info->FbMapSize; + *offset = 0; + *flags = /* DGA_NEED_ROOT */ 0; /* don't need root, just /dev/mem access */ + + return TRUE; +} |