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Diffstat (limited to 'hw/kdrive/via/viadraw.c')
| -rw-r--r-- | hw/kdrive/via/viadraw.c | 505 |
1 files changed, 0 insertions, 505 deletions
diff --git a/hw/kdrive/via/viadraw.c b/hw/kdrive/via/viadraw.c deleted file mode 100644 index 6f0931463..000000000 --- a/hw/kdrive/via/viadraw.c +++ /dev/null @@ -1,505 +0,0 @@ -/* - * 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> - -/* -** 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(); -} - -/* -** 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() { - ; -} - -/* -** 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() { - ; -} - -/* -** viaKaa structure -** -** Description: -** Structure to contain function pointers to accelerated KAA operations -** in this driver. -*/ -KaaScreenInfoRec viaKaa = { - viaPrepareSolid, - viaSolid, - viaDoneSolid, - - viaPrepareCopy, - viaCopy, - viaDoneCopy, -}; - -/* -** 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; - 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" ); - - return kaaDrawInit( pScreen, &viaKaa ); -} - -/* -** 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 ) { - KdMarkSync( 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 ) { -} - -/* -** void viaDrawSync( ScreenPtr pScreen ) -** -** 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. -*/ -void -viaDrawSync( ScreenPtr pScreen ) { - KdScreenPriv( pScreen ); - ViaCardInfo* viac = pScreenPriv->card->driver; - - viaWaitIdle( viac ); -} - |