#include "tseng.h"
#include "dgaproc.h"
static Bool Tseng_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **,
int *, int *, int *);
static Bool Tseng_SetMode(ScrnInfoPtr, DGAModePtr);
static void Tseng_Sync(ScrnInfoPtr);
static int Tseng_GetViewport(ScrnInfoPtr);
static void Tseng_SetViewport(ScrnInfoPtr, int, int, int);
static void Tseng_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long);
static void Tseng_BlitRect(ScrnInfoPtr, int, int, int, int, int, int);
static
DGAFunctionRec TsengDGAFuncs = {
Tseng_OpenFramebuffer,
NULL,
Tseng_SetMode,
Tseng_SetViewport,
Tseng_GetViewport,
Tseng_Sync,
Tseng_FillRect,
Tseng_BlitRect,
NULL
};
Bool
TsengDGAInit(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
TsengPtr pTseng = TsengPTR(pScrn);
DGAModePtr modes = NULL, newmodes = NULL, currentMode;
DisplayModePtr pMode, firstMode;
int Bpp = pScrn->bitsPerPixel >> 3;
int num = 0;
int imlines = (pScrn->videoRam * 1024) /
(pScrn->displayWidth * (pScrn->bitsPerPixel >> 3));
if (!pTseng->UseLinMem)
return FALSE;
if (!pTseng->DGAnumModes) {
pMode = firstMode = pScrn->modes;
while (pMode) {
newmodes = xrealloc(modes, (num + 1) * sizeof (DGAModeRec));
if (!newmodes) {
xfree(modes);
return FALSE;
}
modes = newmodes;
currentMode = modes + num;
num++;
(void)memset(currentMode, 1, sizeof(DGAModeRec));
currentMode->mode = pMode;
currentMode->flags = DGA_PIXMAP_AVAILABLE
| ((pTseng->UseAccel) ? (DGA_FILL_RECT | DGA_BLIT_RECT) : 0);
if (pMode->Flags & V_DBLSCAN)
currentMode->flags |= DGA_DOUBLESCAN;
if(pMode->Flags & V_INTERLACE)
currentMode->flags |= DGA_INTERLACED;
currentMode->byteOrder = pScrn->imageByteOrder;
currentMode->depth = pScrn->depth;
currentMode->bitsPerPixel = pScrn->bitsPerPixel;
currentMode->red_mask = pScrn->mask.red;
currentMode->green_mask = pScrn->mask.green;
currentMode->blue_mask = pScrn->mask.blue;
currentMode->visualClass = (Bpp == 1) ? PseudoColor : TrueColor;
currentMode->viewportWidth = pMode->HDisplay;
currentMode->viewportHeight = pMode->VDisplay;
currentMode->xViewportStep = 1;
currentMode->yViewportStep = 1;
currentMode->viewportFlags = 0 ;
currentMode->offset = 0;
currentMode->address = pTseng->FbBase;
currentMode->bytesPerScanline = ((pScrn->displayWidth * Bpp) + 3) & ~3L;
currentMode->pixmapWidth = currentMode->imageWidth = pScrn->displayWidth;
currentMode->pixmapHeight = currentMode->imageHeight = imlines;
currentMode->maxViewportX = currentMode->imageWidth -
currentMode->viewportWidth;
currentMode->maxViewportY = currentMode->imageHeight -
currentMode->viewportHeight;
pMode = pMode->next;
if(pMode == firstMode)
break;
}
pTseng->DGAnumModes = num;
pTseng->DGAModes = modes;
}
return DGAInit(pScreen, &TsengDGAFuncs, pTseng->DGAModes, pTseng->DGAnumModes);
}
static Bool
Tseng_OpenFramebuffer(
ScrnInfoPtr pScrn,
char **name,
unsigned char **mem,
int *size,
int *offset,
int *flags
){
TsengPtr pTseng = TsengPTR(pScrn);
*name = NULL;
*mem = (unsigned char*)pTseng->LinFbAddress;
*size = pTseng->FbMapSize;
*offset = 0;
*flags = 0;
return TRUE;
}
static Bool
Tseng_SetMode(
ScrnInfoPtr pScrn,
DGAModePtr pMode
){
TsengPtr pTseng = TsengPTR(pScrn);
static int OldDisplayWidth[MAXSCREENS];
int index = pScrn->pScreen->myNum;
Bool ret;
if(!pMode) {
pScrn->displayWidth = OldDisplayWidth[index];
ret = TsengModeInit(xf86Screens[index], pScrn->currentMode);
pTseng->DGAactive = FALSE;
} else {
if(!pTseng->DGAactive) {
OldDisplayWidth[index] = pScrn->displayWidth;
pTseng->DGAactive = TRUE;
}
pScrn->displayWidth = pMode->bytesPerScanline /
(pMode->bitsPerPixel >> 3);
ret = TsengModeInit(xf86Screens[index], pMode->mode);
}
return ret;
}
static void
Tseng_SetViewport(
ScrnInfoPtr pScrn,
int x, int y,
int flags
){
TsengPtr pTseng = TsengPTR(pScrn);
vgaHWPtr hwp = VGAHWPTR(pScrn);
TsengAdjustFrame(pScrn->pScreen->myNum, x, y, flags);
while((hwp->readST01(hwp) & 0x08));
while(!(hwp->readST01(hwp) & 0x08));
pTseng->DGAViewportStatus = 0;
}
static int
Tseng_GetViewport(
ScrnInfoPtr pScrn
){
TsengPtr pTseng = TsengPTR(pScrn);
return pTseng->DGAViewportStatus;
}
static void
Tseng_Sync(
ScrnInfoPtr pScrn
){
TsengPtr pTseng = TsengPTR(pScrn);
if(pTseng->AccelInfoRec) {
(*pTseng->AccelInfoRec->Sync)(pScrn);
}
}
static void
Tseng_FillRect (
ScrnInfoPtr pScrn,
int x, int y, int w, int h,
unsigned long color
){
TsengPtr pTseng = TsengPTR(pScrn);
if(pTseng->AccelInfoRec) {
(*pTseng->AccelInfoRec->SetupForSolidFill)(pScrn, color, GXcopy, ~0);
(*pTseng->AccelInfoRec->SubsequentSolidFillRect)(pScrn, x, y, w, h);
SET_SYNC_FLAG(pTseng->AccelInfoRec);
}
}
static void
Tseng_BlitRect(
ScrnInfoPtr pScrn,
int srcx, int srcy,
int w, int h,
int dstx, int dsty
){
TsengPtr pTseng = TsengPTR(pScrn);
if(pTseng->AccelInfoRec) {
int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
int ydir = (srcy < dsty) ? -1 : 1;
(*pTseng->AccelInfoRec->SetupForScreenToScreenCopy)(
pScrn, xdir, ydir, GXcopy, ~0, -1);
(*pTseng->AccelInfoRec->SubsequentScreenToScreenCopy)(
pScrn, srcx, srcy, dstx, dsty, w, h);
SET_SYNC_FLAG(pTseng->AccelInfoRec);
}
}