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/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/trident/trident_dga.c,v 1.3 1999/10/26 22:46:59 alanh Exp $ */
#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86_ansic.h"
#include "xf86Pci.h"
#include "xf86PciInfo.h"
#include "xaa.h"
#include "xaalocal.h"
#include "trident.h"
#include "trident_regs.h"
#include "dgaproc.h"
static Bool TRIDENT_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **,
int *, int *, int *);
static Bool TRIDENT_SetMode(ScrnInfoPtr, DGAModePtr);
static void TRIDENT_Sync(ScrnInfoPtr);
static int TRIDENT_GetViewport(ScrnInfoPtr);
static void TRIDENT_SetViewport(ScrnInfoPtr, int, int, int);
static void TRIDENT_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long);
static void TRIDENT_BlitRect(ScrnInfoPtr, int, int, int, int, int, int);
static void TRIDENT_BlitTransRect(ScrnInfoPtr, int, int, int, int, int, int,
unsigned long);
static
DGAFunctionRec TRIDENTDGAFuncs = {
TRIDENT_OpenFramebuffer,
NULL,
TRIDENT_SetMode,
TRIDENT_SetViewport,
TRIDENT_GetViewport,
TRIDENT_Sync,
TRIDENT_FillRect,
TRIDENT_BlitRect,
#if 0
TRIDENT_BlitTransRect
#else
NULL
#endif
};
Bool
TRIDENTDGAInit(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
TRIDENTPtr pTrident = TRIDENTPTR(pScrn);
DGAModePtr modes = NULL, newmodes = NULL, currentMode;
DisplayModePtr pMode, firstMode;
int Bpp = pScrn->bitsPerPixel >> 3;
int num = 0;
Bool oneMore;
pMode = firstMode = pScrn->modes;
while(pMode) {
if(0 /*pScrn->displayWidth != pMode->HDisplay*/) {
newmodes = xrealloc(modes, (num + 2) * sizeof(DGAModeRec));
oneMore = TRUE;
} else {
newmodes = xrealloc(modes, (num + 1) * sizeof(DGAModeRec));
oneMore = FALSE;
}
if(!newmodes) {
xfree(modes);
return FALSE;
}
modes = newmodes;
SECOND_PASS:
currentMode = modes + num;
num++;
currentMode->mode = pMode;
currentMode->flags = DGA_CONCURRENT_ACCESS | DGA_PIXMAP_AVAILABLE;
if(!pTrident->NoAccel)
currentMode->flags |= DGA_FILL_RECT | DGA_BLIT_RECT;
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 = DGA_FLIP_RETRACE;
currentMode->offset = 0;
currentMode->address = pTrident->FbBase;
if(oneMore) { /* first one is narrow width */
currentMode->bytesPerScanline = ((pMode->HDisplay * Bpp) + 3) & ~3L;
currentMode->imageWidth = pMode->HDisplay;
currentMode->imageHeight = pMode->VDisplay;
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;
oneMore = FALSE;
goto SECOND_PASS;
} else {
currentMode->bytesPerScanline =
((pScrn->displayWidth * Bpp) + 3) & ~3L;
currentMode->imageWidth = pScrn->displayWidth;
currentMode->imageHeight = pMode->VDisplay;
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;
}
pMode = pMode->next;
if(pMode == firstMode)
break;
}
pTrident->numDGAModes = num;
pTrident->DGAModes = modes;
return DGAInit(pScreen, &TRIDENTDGAFuncs, modes, num);
}
static Bool
TRIDENT_SetMode(
ScrnInfoPtr pScrn,
DGAModePtr pMode
){
static int OldDisplayWidth[MAXSCREENS];
int index = pScrn->pScreen->myNum;
TRIDENTPtr pTrident = TRIDENTPTR(pScrn);
if(!pMode) { /* restore the original mode */
/* put the ScreenParameters back */
pScrn->displayWidth = OldDisplayWidth[index];
TRIDENTSwitchMode(index, pScrn->currentMode, 0);
pTrident->DGAactive = FALSE;
} else {
if(!pTrident->DGAactive) { /* save the old parameters */
OldDisplayWidth[index] = pScrn->displayWidth;
pTrident->DGAactive = TRUE;
}
pScrn->displayWidth = pMode->bytesPerScanline /
(pMode->bitsPerPixel >> 3);
TRIDENTSwitchMode(index, pMode->mode, 0);
}
return TRUE;
}
static int
TRIDENT_GetViewport(
ScrnInfoPtr pScrn
){
TRIDENTPtr pTrident = TRIDENTPTR(pScrn);
return pTrident->DGAViewportStatus;
}
static void
TRIDENT_SetViewport(
ScrnInfoPtr pScrn,
int x, int y,
int flags
){
TRIDENTPtr pTrident = TRIDENTPTR(pScrn);
TRIDENTAdjustFrame(pScrn->pScreen->myNum, x, y, flags);
pTrident->DGAViewportStatus = 0; /* TRIDENTAdjustFrame loops until finished */
}
static void
TRIDENT_FillRect (
ScrnInfoPtr pScrn,
int x, int y, int w, int h,
unsigned long color
){
TRIDENTPtr pTrident = TRIDENTPTR(pScrn);
if(pTrident->AccelInfoRec) {
(*pTrident->AccelInfoRec->SetupForSolidFill)(pScrn, color, GXcopy, ~0);
(*pTrident->AccelInfoRec->SubsequentSolidFillRect)(pScrn, x, y, w, h);
SET_SYNC_FLAG(pTrident->AccelInfoRec);
}
}
static void
TRIDENT_Sync(
ScrnInfoPtr pScrn
){
TRIDENTPtr pTrident = TRIDENTPTR(pScrn);
if(pTrident->AccelInfoRec) {
(*pTrident->AccelInfoRec->Sync)(pScrn);
}
}
static void
TRIDENT_BlitRect(
ScrnInfoPtr pScrn,
int srcx, int srcy,
int w, int h,
int dstx, int dsty
){
TRIDENTPtr pTrident = TRIDENTPTR(pScrn);
if(pTrident->AccelInfoRec) {
int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
int ydir = (srcy < dsty) ? -1 : 1;
(*pTrident->AccelInfoRec->SetupForScreenToScreenCopy)(
pScrn, xdir, ydir, GXcopy, ~0, -1);
(*pTrident->AccelInfoRec->SubsequentScreenToScreenCopy)(
pScrn, srcx, srcy, dstx, dsty, w, h);
SET_SYNC_FLAG(pTrident->AccelInfoRec);
}
}
static void
TRIDENT_BlitTransRect(
ScrnInfoPtr pScrn,
int srcx, int srcy,
int w, int h,
int dstx, int dsty,
unsigned long color
){
/* this one should be separate since the XAA function would
prohibit usage of ~0 as the key */
}
static Bool
TRIDENT_OpenFramebuffer(
ScrnInfoPtr pScrn,
char **name,
unsigned char **mem,
int *size,
int *offset,
int *flags
){
TRIDENTPtr pTrident = TRIDENTPTR(pScrn);
*name = NULL; /* no special device */
*mem = (unsigned char*)pTrident->FbAddress;
*size = pTrident->FbMapSize;
*offset = 0;
*flags = DGA_NEED_ROOT;
return TRUE;
}
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