#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86_ansic.h"
#include "xf86Pci.h"
#include "xf86PciInfo.h"
#include "xaa.h"
#include "xaalocal.h"
#include "sis.h"
#include "sis_regs.h"
#include "dgaproc.h"
static Bool SIS_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **,
int *, int *, int *);
static Bool SIS_SetMode(ScrnInfoPtr, DGAModePtr);
static void SIS_Sync(ScrnInfoPtr);
static int SIS_GetViewport(ScrnInfoPtr);
static void SIS_SetViewport(ScrnInfoPtr, int, int, int);
static void SIS_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long);
static void SIS_BlitRect(ScrnInfoPtr, int, int, int, int, int, int);
static void SIS_BlitTransRect(ScrnInfoPtr, int, int, int, int, int, int,
unsigned long);
static
DGAFunctionRec SISDGAFuncs = {
SIS_OpenFramebuffer,
NULL,
SIS_SetMode,
SIS_SetViewport,
SIS_GetViewport,
SIS_Sync,
SIS_FillRect,
SIS_BlitRect,
NULL
};
static
DGAFunctionRec SISDGAFuncs3xx = {
SIS_OpenFramebuffer,
NULL,
SIS_SetMode,
SIS_SetViewport,
SIS_GetViewport,
SIS_Sync,
SIS_FillRect,
SIS_BlitRect,
SIS_BlitTransRect
};
static DGAModePtr
SISSetupDGAMode(
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
){
SISPtr pSiS = SISPTR(pScrn);
DGAModePtr newmodes = NULL, currentMode;
DisplayModePtr pMode, firstMode;
int otherPitch, Bpp = bitsPerPixel >> 3;
Bool oneMore;
pMode = firstMode = pScrn->modes;
while(pMode) {
otherPitch = secondPitch ? secondPitch : pMode->HDisplay;
if(pMode->HDisplay != otherPitch) {
newmodes = xrealloc(modes, (*num + 2) * sizeof(DGAModeRec));
oneMore = TRUE;
} else {
newmodes = xrealloc(modes, (*num + 1) * sizeof(DGAModeRec));
oneMore = FALSE;
}
if(!newmodes) {
xfree(modes);
return NULL;
}
modes = newmodes;
SECOND_PASS:
currentMode = modes + *num;
(*num)++;
currentMode->mode = pMode;
currentMode->flags = DGA_CONCURRENT_ACCESS;
if(pixmap)
currentMode->flags |= DGA_PIXMAP_AVAILABLE;
if(!pSiS->NoAccel) {
currentMode->flags |= DGA_FILL_RECT | DGA_BLIT_RECT;
if((pSiS->VGAEngine == SIS_300_VGA) ||
(pSiS->VGAEngine == SIS_315_VGA) ||
(pSiS->VGAEngine == SIS_530_VGA)) {
currentMode->flags |= DGA_BLIT_RECT_TRANS;
}
}
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 = 1;
currentMode->yViewportStep = 1;
currentMode->viewportFlags = DGA_FLIP_RETRACE;
currentMode->offset = 0;
currentMode->address = pSiS->FbBase;
if(oneMore) {
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;
currentMode->maxViewportY = (currentMode->imageHeight -
currentMode->viewportHeight);
oneMore = FALSE;
goto SECOND_PASS;
} else {
currentMode->bytesPerScanline = ((otherPitch * Bpp) + 3) & ~3L;
currentMode->imageWidth = otherPitch;
currentMode->imageHeight = pMode->VDisplay;
currentMode->pixmapWidth = currentMode->imageWidth;
currentMode->pixmapHeight = currentMode->imageHeight;
currentMode->maxViewportX = (currentMode->imageWidth -
currentMode->viewportWidth);
currentMode->maxViewportY = (currentMode->imageHeight -
currentMode->viewportHeight);
}
pMode = pMode->next;
if(pMode == firstMode)
break;
}
return modes;
}
Bool
SISDGAInit(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
SISPtr pSiS = SISPTR(pScrn);
DGAModePtr modes = NULL;
int num = 0;
#ifdef SISDUALHEAD
if(!pSiS->DualHeadMode) {
#endif
#ifdef SISMERGED
if(!(pSiS->MergedFB)) {
#endif
modes = SISSetupDGAMode(pScrn, modes, &num, 8, 8,
(pScrn->bitsPerPixel == 8),
((pScrn->bitsPerPixel != 8)
? 0 : pScrn->displayWidth),
0, 0, 0, PseudoColor);
#ifdef SISMERGED
}
#endif
#ifdef SISDUALHEAD
}
#endif
modes = SISSetupDGAMode(pScrn, modes, &num, 16, 16,
(pScrn->bitsPerPixel == 16),
((pScrn->depth != 16)
? 0 : pScrn->displayWidth),
0xf800, 0x07e0, 0x001f, TrueColor);
if((pSiS->VGAEngine == SIS_530_VGA) || (pSiS->VGAEngine == SIS_OLD_VGA)) {
modes = SISSetupDGAMode(pScrn, modes, &num, 24, 24,
(pScrn->bitsPerPixel == 24),
((pScrn->bitsPerPixel != 24)
? 0 : pScrn->displayWidth),
0xff0000, 0x00ff00, 0x0000ff, TrueColor);
}
if(pSiS->VGAEngine != SIS_OLD_VGA) {
modes = SISSetupDGAMode(pScrn, modes, &num, 32, 24,
(pScrn->bitsPerPixel == 32),
((pScrn->bitsPerPixel != 32)
? 0 : pScrn->displayWidth),
0xff0000, 0x00ff00, 0x0000ff, TrueColor);
}
pSiS->numDGAModes = num;
pSiS->DGAModes = modes;
if((pSiS->VGAEngine == SIS_300_VGA) ||
(pSiS->VGAEngine == SIS_315_VGA) ||
(pSiS->VGAEngine == SIS_530_VGA)) {
return DGAInit(pScreen, &SISDGAFuncs3xx, modes, num);
} else {
return DGAInit(pScreen, &SISDGAFuncs, modes, num);
}
}
static Bool
SIS_SetMode(
ScrnInfoPtr pScrn,
DGAModePtr pMode
){
static SISFBLayout BackupLayouts[MAXSCREENS];
int index = pScrn->pScreen->myNum;
SISPtr pSiS = SISPTR(pScrn);
if(!pMode) {
if(pSiS->DGAactive) {
memcpy(&pSiS->CurrentLayout, &BackupLayouts[index], sizeof(SISFBLayout));
}
pScrn->currentMode = pSiS->CurrentLayout.mode;
(*pScrn->SwitchMode)(index, pScrn->currentMode, 0);
(*pScrn->AdjustFrame)(index, pScrn->frameX0, pScrn->frameY0, 0);
pSiS->DGAactive = FALSE;
} else {
if(!pSiS->DGAactive) {
memcpy(&BackupLayouts[index], &pSiS->CurrentLayout, sizeof(SISFBLayout));
pSiS->DGAactive = TRUE;
}
pSiS->CurrentLayout.bitsPerPixel = pMode->bitsPerPixel;
pSiS->CurrentLayout.depth = pMode->depth;
pSiS->CurrentLayout.displayWidth = pMode->bytesPerScanline / (pMode->bitsPerPixel >> 3);
(*pScrn->SwitchMode)(index, pMode->mode, 0);
(*pScrn->AdjustFrame)(index, 0, 0, 0);
}
return TRUE;
}
static int
SIS_GetViewport(
ScrnInfoPtr pScrn
){
SISPtr pSiS = SISPTR(pScrn);
return pSiS->DGAViewportStatus;
}
static void
SIS_SetViewport(
ScrnInfoPtr pScrn,
int x, int y,
int flags
){
SISPtr pSiS = SISPTR(pScrn);
(*pScrn->AdjustFrame)(pScrn->pScreen->myNum, x, y, flags);
pSiS->DGAViewportStatus = 0;
}
static void
SIS_FillRect (
ScrnInfoPtr pScrn,
int x, int y, int w, int h,
unsigned long color
){
SISPtr pSiS = SISPTR(pScrn);
if(pSiS->AccelInfoPtr) {
(*pSiS->AccelInfoPtr->SetupForSolidFill)(pScrn, color, GXcopy, ~0);
(*pSiS->AccelInfoPtr->SubsequentSolidFillRect)(pScrn, x, y, w, h);
SET_SYNC_FLAG(pSiS->AccelInfoPtr);
}
}
static void
SIS_Sync(
ScrnInfoPtr pScrn
){
SISPtr pSiS = SISPTR(pScrn);
if(pSiS->AccelInfoPtr) {
(*pSiS->AccelInfoPtr->Sync)(pScrn);
}
}
static void
SIS_BlitRect(
ScrnInfoPtr pScrn,
int srcx, int srcy,
int w, int h,
int dstx, int dsty
){
SISPtr pSiS = SISPTR(pScrn);
if(pSiS->AccelInfoPtr) {
int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
int ydir = (srcy < dsty) ? -1 : 1;
(*pSiS->AccelInfoPtr->SetupForScreenToScreenCopy)(
pScrn, xdir, ydir, GXcopy, (CARD32)~0, -1);
(*pSiS->AccelInfoPtr->SubsequentScreenToScreenCopy)(
pScrn, srcx, srcy, dstx, dsty, w, h);
SET_SYNC_FLAG(pSiS->AccelInfoPtr);
}
}
static void
SIS_BlitTransRect(
ScrnInfoPtr pScrn,
int srcx, int srcy,
int w, int h,
int dstx, int dsty,
unsigned long color
){
SISPtr pSiS = SISPTR(pScrn);
if(pSiS->AccelInfoPtr) {
int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
int ydir = (srcy < dsty) ? -1 : 1;
(*pSiS->AccelInfoPtr->SetupForScreenToScreenCopy)(
pScrn, xdir, ydir, GXcopy, ~0, color);
(*pSiS->AccelInfoPtr->SubsequentScreenToScreenCopy)(
pScrn, srcx, srcy, dstx, dsty, w, h);
SET_SYNC_FLAG(pSiS->AccelInfoPtr);
}
}
static Bool
SIS_OpenFramebuffer(
ScrnInfoPtr pScrn,
char **name,
unsigned char **mem,
int *size,
int *offset,
int *flags
){
SISPtr pSiS = SISPTR(pScrn);
*name = NULL;
*mem = (unsigned char*)pSiS->FbAddress;
*size = pSiS->maxxfbmem;
*offset = 0;
*flags = DGA_NEED_ROOT;
return TRUE;
}