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/* $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;
}
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