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authormarha <marha@users.sourceforge.net>2009-07-25 19:39:46 +0000
committermarha <marha@users.sourceforge.net>2009-07-25 19:39:46 +0000
commit4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05 (patch)
treec1e02b9d3509aa97703aa4b540d4cd22ec4600ed /xorg-server/hw/kdrive/via/viadraw.c
parentdc3c299dd0995549e2a6973ca0f25b254afd38a5 (diff)
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Added xorg-server-1.6.2.tar.gz
Diffstat (limited to 'xorg-server/hw/kdrive/via/viadraw.c')
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-/*
- * Copyright © 2004 Ralph Thomas
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Ralph Thomas not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. Ralph Thomas makes no
- * representations about the suitability of this software for any purpose. It
- * is provided "as is" without express or implied warranty.
- *
- * RALPH THOMAS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL RALPH THOMAS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-/*
-** VIA CLE266 driver
-** Copyright 2004 (C) Ralph Thomas <ralpht@gmail.com>
-**
-** http://www.viatech.com.tw/
-**
-** This code is for accelerated drawing of solids and accelerated
-** copies. Note that there is currently no software FIFO implemented,
-** and no documentation on any hardware FIFO.
-*/
-
-#include "via.h"
-#include "viadraw.h"
-#include "via_regs.h"
-#include <sched.h>
-#include "kdrive.h"
-#include "kaa.h"
-
-/*
-** A global to contain card information between calls into this file.
-** XXX: This is totally brain-damaged. Why don't I get the information
-** I want in viaSolid/viaCopy/viaDoneXXX?
-*/
-static ViaCardInfo* card;
-
-/*
-** Translation table from GC raster operation values into ROP3 values
-** that the VIA chip understands.
-**
-** viaPatternRop is used by viaPrepareSolid.
-** viaCopyRop is used by viaPrepareCopy.
-*/
-CARD8 viaPatternRop[16] = {
- /* GXclear */ 0x00, /* ROP_0 0 */
- /* GXand */ 0xA0, /* ROP_DPa src AND dst */
- /* GXandReverse */ 0x50, /* ROP_PDna src AND NOT dst */
- /* GXcopy */ 0xF0, /* ROP_P src */
- /* GXandInverted*/ 0x0A, /* ROP_DPna NOT src AND dst */
- /* GXnoop */ 0xAA, /* ROP_D dst */
- /* GXxor */ 0x5A, /* ROP_DPx src XOR dst */
- /* GXor */ 0xFA, /* ROP_DPo src OR dst */
- /* GXnor */ 0x05, /* ROP_DPon NOT src AND NOT dst */
- /* GXequiv */ 0xA5, /* ROP_PDxn NOT src XOR dst */
- /* GXinvert */ 0x55, /* ROP_Dn NOT dst */
- /* GXorReverse */ 0xF5, /* ROP_PDno src OR NOT dst */
- /* GXcopyInverted*/ 0x0F, /* ROP_Pn NOT src */
- /* GXorInverted */ 0xAF, /* ROP_DPno NOT src OR dst */
- /* GXnand */ 0x5F, /* ROP_DPan NOT src OR NOT dst */
- /* GXset */ 0xFF, /* ROP_1 1 */
-};
-
-CARD8 viaCopyRop[16] = {
- /* GXclear */ 0x00, /* ROP_0 0 */
- /* GXand */ 0x88, /* ROP_DSa src AND dst */
- /* GXandReverse */ 0x44, /* ROP_SDna src AND NOT dst */
- /* GXcopy */ 0xCC, /* ROP_S src */
- /* GXandInverted*/ 0x22, /* ROP_DSna NOT src AND dst */
- /* GXnoop */ 0xAA, /* ROP_D dst */
- /* GXxor */ 0x66, /* ROP_DSx src XOR dst */
- /* GXor */ 0xEE, /* ROP_DSo src OR dst */
- /* GXnor */ 0x11, /* ROP_DSon NOT src AND NOT dst */
- /* GXequiv */ 0x99, /* ROP_DSxn NOT src XOR dst */
- /* GXinvert */ 0x55, /* ROP_Dn NOT dst */
- /* GXorReverse */ 0xDD, /* ROP_SDno src OR NOT dst */
- /* GXcopyInverted*/ 0x33, /* ROP_Sn NOT src */
- /* GXorInverted */ 0xBB, /* ROP_DSno NOT src OR dst */
- /* GXnand */ 0x77, /* ROP_DSan NOT src OR NOT dst */
- /* GXset */ 0xFF, /* ROP_1 1 */
-};
-
-/*
-** void viaWaitIdle( ViaCardInfo* viac )
-**
-** Description:
-** Block up the CPU while waiting for the last command sent to
-** the chip to complete. As an experiment I'm going to try to
-** yield my process to others instead of just tight looping.
-**
-** Arguments:
-** viac VIA-driver specific chip information
-**
-** Return:
-** None.
-*/
-void
-viaWaitIdle( ViaCardInfo* viac ) {
- while( INREG32( VIA_REG_STATUS ) & VIA_BUSY )
- sched_yield();
-}
-
-/*
-** void viaDrawSync( ScreenPtr pScreen, int marker )
-**
-** Description:
-** Block until the graphics chip has finished all outstanding drawing
-** operations and the framebuffer contents is static.
-**
-** Arguments:
-** pScreen Pointer to screen strucutre for the screen we're
-** waiting for drawing to end on.
-**
-** Return:
-** None.
-*/
-static void
-viaWaitMarker( ScreenPtr pScreen, int marker ) {
- KdScreenPriv( pScreen );
- ViaCardInfo* viac = pScreenPriv->card->driver;
-
- viaWaitIdle( viac );
-}
-
-
-/*
-** Bool viaPrepareSolid( PixmapPtr pPixmap, int alu, Pixel planemask, Pixel fg )
-**
-** Description:
-** Decide if the specified solid fill operation can be accelerated or not,
-** and if the fill can be accelerated, prepare the hardware for doing it.
-**
-** Arguments:
-** pPixmap Pixmap to draw solid into.
-** alu Raster operation to draw using, these are the same
-** values which get set by XSetFunction(3X). See the
-** Xlib PM p. 140 for a list of raster operations as
-** well as descriptions.
-** planemask This is the GC plane mask. We only copy bits which
-** match the plane mask.
-** fg The foreground pixel of the GC, the pixel to draw in.
-**
-** Return:
-** TRUE This operation can be accelerated, call viaSolid to actually
-** have it drawn.
-** FALSE This operation cannot be accelerated, fall back to software.
-**
-** See Also:
-** viaSolid - the function which actually draws the solid.
-*/
-static Bool
-viaPrepareSolid( PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg ) {
- ScreenPtr pScreen = pPixmap->drawable.pScreen;
- KdScreenPriv( pScreen );
- ViaCardInfo* viac = pScreenPriv->card->driver;
-
- /*
- ** We don't accelerate when the plane mask is not everything.
- */
- if( ~planeMask & FbFullMask( pPixmap->drawable.depth ) ) return FALSE;
-
- /*
- ** Compose the command, then store the composed command and color
- ** in the viac structure so that when viaSolid gets called we can
- ** write them out.
- */
- viac->savedCommand = VIA_GEC_BLT | VIA_GEC_FIXCOLOR_PAT |
- (viaPatternRop[alu] << 24);
- viac->savedFgColor = fg;
-
- /*
- ** Store pointer to chip information, due to brain-damaged KAA.
- */
- card = viac;
-
- return TRUE;
-}
-
-/*
-** void viaSolid( int x1, int y1, int x2, int y2 )
-**
-** Description:
-** Perform a solid fill, using the data that was stored by viaPrepareSolid.
-**
-** Arguments:
-** x1 x-coordinate of fill origin
-** y1 y-coordinate of fill origin
-** x2 x-coordinate of fill end point
-** y2 y-coordinate of fill end point
-**
-** Return:
-** None.
-**
-** See Also:
-** viaPrepareSolid - the function that composes the GE command and saves
-** the color for us.
-*/
-static void
-viaSolid( int x1, int y1, int x2, int y2 ) {
- ViaCardInfo* viac = card;
- int w = x2 - x1; int h = y2 - y1;
-
- if( !viac ) return;
- if( !w || !h ) return;
-
- /*
- ** Wait for the card to finish the current draw.
- */
- viaWaitIdle( viac );
-
- /*
- ** Do the draw.
- */
- OUTREG32( VIA_REG_DSTPOS, ((y1 << 16) | x1) );
- OUTREG32( VIA_REG_DIMENSION, (((h - 1) << 16) | (w - 1)) );
- OUTREG32( VIA_REG_FGCOLOR, viac->savedFgColor );
- OUTREG32( VIA_REG_GECMD, viac->savedCommand );
-}
-
-/*
-** void viaDoneSolid
-**
-** Description:
-** Finish up drawing of the solid.
-**
-** Arguments:
-** None.
-**
-** Return:
-** None.
-*/
-static void
-viaDoneSolid(void) {
-}
-
-/*
-** Bool viaPrepareCopy( PixmapPtr pSrcPixmap, PixmapPtr pDestPixmap, int dx,
-** int dy, int alu, Pixel planeMask )
-**
-** Description:
-** Set up the VIA chip for a BitBlt.
-**
-** Arguments:
-** pSrcPixmap the source pixmap to copy from
-** pDestPixmap the destination pixmap to copy to
-** dx direction of copy in x
-** dy direction of copy in y
-** alu Raster operation to draw using, these are the same
-** values which get set by XSetFunction(3X). See the
-** Xlib PM p. 140 for a list of raster operations as
-** well as descriptions.
-** planeMask This is the GC plane mask. We only copy bits which
-** match the plane mask.
-**
-** Return:
-** TRUE the requested copy operation can be accelerated using hardware,
-** call viaCopy next.
-** FALSE the requested copy operation cannot be accelerated using
-** hardware - fallback to software.
-**
-** See Also:
-** viaCopy - the function which does the actual copy.
-*/
-static Bool
-viaPrepareCopy( PixmapPtr pSrcPixmap, PixmapPtr pDestPixmap, int dx, int dy,
- int alu, Pixel planeMask ) {
- ScreenPtr pScreen = pDestPixmap->drawable.pScreen;
- KdScreenPriv( pScreen );
- ViaCardInfo* viac = pScreenPriv->card->driver;
-
- /*
- ** Don't accelerate when the plane mask is set.
- */
- if( ~planeMask & FbFullMask( pDestPixmap->drawable.depth ) ) return FALSE;
-
- viac->savedCommand = VIA_GEC_BLT | (viaCopyRop[alu] << 24);
-
- if( dx < 0 ) viac->savedCommand |= VIA_GEC_DECX;
- if( dy < 0 ) viac->savedCommand |= VIA_GEC_DECY;
-
- /*
- ** Store pointer to chip structure, due to brain-damaged KAA.
- */
- card = viac;
-
- return TRUE;
-}
-
-/*
-** void viaCopy( int srcX, int srcY, int dstX, int dstY, int w, int h )
-**
-** Description:
-** Perform a BitBlt from one screen area to another.
-**
-** Arguments:
-** srcX source x-coordinate
-** srcY source y-coordinate
-** dstX destination x-coordinate
-** dstY destination y-coordinate
-** w width of area to copy (pixels)
-** h height of area to copy (pixels)
-**
-** Return:
-** None.
-**
-** See Also:
-** viaPrepareCopy - the function which sets up for the copy.
-*/
-static void
-viaCopy( int srcX, int srcY, int dstX, int dstY, int w, int h ) {
- ViaCardInfo* viac = card;
-
- if( !viac ) return;
- if( !w | !h ) return;
-
- /*
- ** XXX: Check these two "if"s out.
- */
- if( viac->savedCommand & VIA_GEC_DECX ) {
- srcX += ( w - 1 );
- dstX += ( w - 1 );
- }
-
- if( viac->savedCommand & VIA_GEC_DECY ) {
- srcY += ( h - 1 );
- dstY += ( h - 1 );
- }
-
- OUTREG32( VIA_REG_SRCPOS, ((srcY << 16) | srcX) );
- OUTREG32( VIA_REG_DSTPOS, ((dstY << 16) | dstX) );
- OUTREG32( VIA_REG_DIMENSION, (((h - 1) << 16) | (w - 1)) );
- OUTREG32( VIA_REG_GECMD, viac->savedCommand );
-}
-
-/*
-** void viaDoneCopy()
-**
-** Description:
-** Finish up the copy.
-**
-** Arguments:
-** None.
-**
-** Return:
-** None.
-*/
-static void
-viaDoneCopy(void) {
-}
-
-
-/*
-** Bool viaDrawInit( ScreenPtr pScreen )
-**
-** Description:
-** Initialize the 2D acceleration hardware and register the KAA
-** acceleration layer with the VIA acceleration functions (above).
-**
-** Arguments:
-** pScreen Pointer to screen structure for the screen we're
-** enabling acceleration on.
-**
-** Return:
-** TRUE initialization and setup of KAA acceleration was successful.
-** FALSE initialization and setup of KAA acceleration failed.
-*/
-Bool
-viaDrawInit( ScreenPtr pScreen ) {
- KdScreenPriv( pScreen );
- ViaCardInfo* viac = pScreenPriv->card->driver;
- ViaScreenInfo* vias = pScreenPriv->card->driver;
- CARD32 geMode = 0;
-
- if( !viac ) return FALSE;
- DebugF( "viac->mapBase = 0x%x\n", viac->mapBase );
-
- /*
- ** We reset the 2D engine to a known state by setting all of it's
- ** registers to zero.
- */
- OUTREG32( VIA_REG_GEMODE, 0x0 );
- OUTREG32( VIA_REG_SRCPOS, 0x0 );
- OUTREG32( VIA_REG_DSTPOS, 0x0 );
- OUTREG32( VIA_REG_DIMENSION, 0x0 );
- OUTREG32( VIA_REG_PATADDR, 0x0 );
- OUTREG32( VIA_REG_FGCOLOR, 0x0 );
- OUTREG32( VIA_REG_BGCOLOR, 0x0 );
- OUTREG32( VIA_REG_CLIPTL, 0x0 );
- OUTREG32( VIA_REG_CLIPBR, 0x0 );
- OUTREG32( VIA_REG_OFFSET, 0x0 );
- OUTREG32( VIA_REG_KEYCONTROL, 0x0 );
- OUTREG32( VIA_REG_SRCBASE, 0x0 );
- OUTREG32( VIA_REG_DSTBASE, 0x0 );
- OUTREG32( VIA_REG_PITCH, 0x0 );
- OUTREG32( VIA_REG_MONOPAT0, 0x0 );
- OUTREG32( VIA_REG_MONOPAT1, 0x0 );
-
- /*
- ** Set the GE mode up.
- ** XXX: What happens in 24bpp mode?
- */
- switch( pScreenPriv->screen->fb[0].bitsPerPixel ) {
- case 16:
- geMode = VIA_GEM_16bpp;
- break;
- case 32:
- geMode = VIA_GEM_32bpp;
- break;
- default:
- geMode = VIA_GEM_8bpp;
- break;
- }
-
- OUTREG32( VIA_REG_GEMODE, geMode );
-
- /*
- ** Set the source and destination base addresses, and set pitch.
- */
- OUTREG32( VIA_REG_SRCBASE, 0x0 );
- OUTREG32( VIA_REG_DSTBASE, 0x0 );
- OUTREG32( VIA_REG_PITCH, VIA_PITCH_ENABLE |
- ((pScreen->width * pScreenPriv->screen->fb[0].bitsPerPixel >> 3) >> 3) |
- (((pScreen->width * pScreenPriv->screen->fb[0].bitsPerPixel >> 3) >> 3) << 16));
-
- DebugF( "Initialized 2D engine!\n" );
-
- memset(&vias->kaa, 0, sizeof(KaaScreenInfoRec));
- vias->kaa.waitMarker = viaWaitMarker;
- vias->kaa.PrepareSolid = viaPrepareSolid;
- vias->kaa.Solid = viaSolid;
- vias->kaa.DoneSolid = viaDoneSolid;
- vias->kaa.PrepareCopy = viaPrepareCopy;
- vias->kaa.Copy = viaCopy;
- vias->kaa.DoneCopy = viaDoneCopy;
-
- return kaaDrawInit( pScreen, &vias->kaa );
-}
-
-/*
-** void viaDrawEnable( ScreenPtr pScreen )
-**
-** Description:
-** Enable accelerated drawing on the specified screen.
-**
-** Arguments:
-** pScreen Pointer to screen structure for the screen we're
-** enabling acceleration on.
-**
-** Return:
-** None.
-*/
-void
-viaDrawEnable( ScreenPtr pScreen ) {
- kaaMarkSync( pScreen );
-}
-
-/*
-** void viaDrawDisable( ScreenPtr pScreen )
-**
-** Description:
-** Disable accelerated drawing to the specified screen.
-**
-** Arguments:
-** pScreen Pointer to screen structure for the screen we're
-** disabling acceleration on.
-**
-** Return:
-** None
-*/
-void
-viaDrawDisable( ScreenPtr pScreen ) {
-}
-
-/*
-** void viaDrawFini( ScreenPtr pScreen )
-**
-** Description:
-** Shutdown accelerated drawing and free associated strucures and
-** resources.
-**
-** Arguments:
-** pScreen Pointer to screen structure for the screen we're
-** disabling acceleration on.
-**
-** Return:
-** None.
-*/
-void
-viaDrawFini( ScreenPtr pScreen ) {
-}