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-rw-r--r--src/radeon_dga.c397
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diff --git a/src/radeon_dga.c b/src/radeon_dga.c
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-/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_dga.c,v 1.11 2002/09/18 18:14:58 martin Exp $ */
-/*
- * Copyright 2000 ATI Technologies Inc., Markham, Ontario, and
- * VA Linux Systems Inc., Fremont, California.
- *
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation on the rights to use, copy, modify, merge,
- * publish, distribute, sublicense, and/or sell copies of the Software,
- * and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NON-INFRINGEMENT. IN NO EVENT SHALL ATI, VA LINUX SYSTEMS AND/OR
- * THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * Authors:
- * Kevin E. Martin <martin@xfree86.org>
- *
- * Credits:
- *
- * Thanks to Ove Kåven <ovek@transgaming.com> for writing the Rage 128
- * DGA support. Portions of this file are based on the initialization
- * code for that driver.
- *
- */
-
- /* Driver data structures */
-#include "radeon.h"
-#include "radeon_probe.h"
-
- /* X and server generic header files */
-#include "xf86.h"
-
- /* DGA support */
-#include "dgaproc.h"
-
-
-static Bool RADEON_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **,
- int *, int *, int *);
-static Bool RADEON_SetMode(ScrnInfoPtr, DGAModePtr);
-static int RADEON_GetViewport(ScrnInfoPtr);
-static void RADEON_SetViewport(ScrnInfoPtr, int, int, int);
-static void RADEON_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long);
-static void RADEON_BlitRect(ScrnInfoPtr, int, int, int, int, int, int);
-static void RADEON_BlitTransRect(ScrnInfoPtr, int, int, int, int, int, int,
- unsigned long);
-
-
-static DGAModePtr RADEONSetupDGAMode(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)
-{
- RADEONInfoPtr info = RADEONPTR(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 RADEONDGAInit(ScreenPtr pScreen)
-{
- ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
- RADEONInfoPtr info = RADEONPTR(pScrn);
- DGAModePtr modes = NULL;
- int num = 0;
-
- /* 8 */
- modes = RADEONSetupDGAMode(pScrn, modes, &num, 8, 8,
- (pScrn->bitsPerPixel == 8),
- ((pScrn->bitsPerPixel != 8)
- ? 0 : pScrn->displayWidth),
- 0, 0, 0, PseudoColor);
-
- /* 15 */
- modes = RADEONSetupDGAMode(pScrn, modes, &num, 16, 15,
- (pScrn->bitsPerPixel == 16),
- ((pScrn->depth != 15)
- ? 0 : pScrn->displayWidth),
- 0x7c00, 0x03e0, 0x001f, TrueColor);
-
- modes = RADEONSetupDGAMode(pScrn, modes, &num, 16, 15,
- (pScrn->bitsPerPixel == 16),
- ((pScrn->depth != 15)
- ? 0 : pScrn->displayWidth),
- 0x7c00, 0x03e0, 0x001f, DirectColor);
-
- /* 16 */
- modes = RADEONSetupDGAMode(pScrn, modes, &num, 16, 16,
- (pScrn->bitsPerPixel == 16),
- ((pScrn->depth != 16)
- ? 0 : pScrn->displayWidth),
- 0xf800, 0x07e0, 0x001f, TrueColor);
-
- modes = RADEONSetupDGAMode(pScrn, modes, &num, 16, 16,
- (pScrn->bitsPerPixel == 16),
- ((pScrn->depth != 16)
- ? 0 : pScrn->displayWidth),
- 0xf800, 0x07e0, 0x001f, DirectColor);
-
- /* 32 */
- modes = RADEONSetupDGAMode(pScrn, modes, &num, 32, 24,
- (pScrn->bitsPerPixel == 32),
- ((pScrn->bitsPerPixel != 32)
- ? 0 : pScrn->displayWidth),
- 0xff0000, 0x00ff00, 0x0000ff, TrueColor);
-
- modes = RADEONSetupDGAMode(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 = RADEON_OpenFramebuffer;
- info->DGAFuncs.CloseFramebuffer = NULL;
- info->DGAFuncs.SetMode = RADEON_SetMode;
- info->DGAFuncs.SetViewport = RADEON_SetViewport;
- info->DGAFuncs.GetViewport = RADEON_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 = RADEON_FillRect;
- if (info->accel->SetupForScreenToScreenCopy &&
- info->accel->SubsequentScreenToScreenCopy) {
- info->DGAFuncs.BlitRect = RADEON_BlitRect;
- info->DGAFuncs.BlitTransRect = RADEON_BlitTransRect;
- }
- }
-
- return DGAInit(pScreen, &info->DGAFuncs, modes, num);
-}
-
-static Bool RADEON_SetMode(ScrnInfoPtr pScrn, DGAModePtr pMode)
-{
- static RADEONFBLayout SavedLayouts[MAXSCREENS];
- int indx = pScrn->pScreen->myNum;
- RADEONInfoPtr info = RADEONPTR(pScrn);
-
- if (!pMode) { /* restore the original mode */
- /* put the ScreenParameters back */
- if (info->DGAactive)
- memcpy(&info->CurrentLayout, &SavedLayouts[indx],
- sizeof(RADEONFBLayout));
-
- pScrn->currentMode = info->CurrentLayout.mode;
-
- RADEONSwitchMode(indx, pScrn->currentMode, 0);
-#ifdef XF86DRI
- if (info->directRenderingEnabled) {
- RADEONCP_STOP(pScrn, info);
- }
-#endif
- if (info->accelOn)
- RADEONEngineInit(pScrn);
-#ifdef XF86DRI
- if (info->directRenderingEnabled) {
- RADEONCP_START(pScrn, info);
- }
-#endif
- RADEONAdjustFrame(indx, 0, 0, 0);
- info->DGAactive = FALSE;
- } else {
- if (!info->DGAactive) { /* save the old parameters */
- memcpy(&SavedLayouts[indx], &info->CurrentLayout,
- sizeof(RADEONFBLayout));
- 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);
- /* RADEONModeInit() will set the mode field */
-
- RADEONSwitchMode(indx, pMode->mode, 0);
-
-#ifdef XF86DRI
- if (info->directRenderingEnabled) {
- RADEONCP_STOP(pScrn, info);
- }
-#endif
- if (info->accelOn)
- RADEONEngineInit(pScrn);
-#ifdef XF86DRI
- if (info->directRenderingEnabled) {
- RADEONCP_START(pScrn, info);
- }
-#endif
- }
-
- return TRUE;
-}
-
-static int RADEON_GetViewport(ScrnInfoPtr pScrn)
-{
- RADEONInfoPtr info = RADEONPTR(pScrn);
-
- return info->DGAViewportStatus;
-}
-
-static void RADEON_SetViewport(ScrnInfoPtr pScrn, int x, int y, int flags)
-{
- RADEONInfoPtr info = RADEONPTR(pScrn);
-
- RADEONAdjustFrame(pScrn->pScreen->myNum, x, y, flags);
- info->DGAViewportStatus = 0; /* FIXME */
-}
-
-static void RADEON_FillRect(ScrnInfoPtr pScrn,
- int x, int y, int w, int h,
- unsigned long color)
-{
- RADEONInfoPtr info = RADEONPTR(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 RADEON_BlitRect(ScrnInfoPtr pScrn,
- int srcx, int srcy, int w, int h,
- int dstx, int dsty)
-{
- RADEONInfoPtr info = RADEONPTR(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 RADEON_BlitTransRect(ScrnInfoPtr pScrn,
- int srcx, int srcy, int w, int h,
- int dstx, int dsty, unsigned long color)
-{
- RADEONInfoPtr info = RADEONPTR(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 RADEON_OpenFramebuffer(ScrnInfoPtr pScrn,
- char **name,
- unsigned char **mem,
- int *size, int *offset, int *flags)
-{
- RADEONInfoPtr info = RADEONPTR(pScrn);
-
- *name = NULL; /* no special device */
- *mem = (unsigned char*)info->LinearAddr;
- *size = info->FbMapSize;
- *offset = 0;
- *flags = 0; /* DGA_NEED_ROOT; -- don't need root, just /dev/mem access */
-
- return TRUE;
-}
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