From 0f2e1869263ef04b3bc47d9817278a555201bda8 Mon Sep 17 00:00:00 2001 From: Alan Hourihane Date: Tue, 30 Sep 2003 11:13:31 +0000 Subject: add the SiS driver - no kernel driver yet (build tested, but not physically tested) --- src/mesa/drivers/dri/sis/sis_screen.c | 285 ++++++++++++++++++++++++++++++++++ 1 file changed, 285 insertions(+) create mode 100644 src/mesa/drivers/dri/sis/sis_screen.c (limited to 'src/mesa/drivers/dri/sis/sis_screen.c') diff --git a/src/mesa/drivers/dri/sis/sis_screen.c b/src/mesa/drivers/dri/sis/sis_screen.c new file mode 100644 index 0000000000..1de992e18b --- /dev/null +++ b/src/mesa/drivers/dri/sis/sis_screen.c @@ -0,0 +1,285 @@ +/* $XFree86$ */ +/************************************************************************** + +Copyright 2003 Eric Anholt +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, sub +license, 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, PRECISION INSIGHT 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: + * Eric Anholt + */ + +#include "dri_util.h" + +#include "context.h" +#include "utils.h" +#include "imports.h" + +#include "sis_context.h" +#include "sis_dri.h" +#include "sis_lock.h" + +/* Create the device specific screen private data struct. + */ +static sisScreenPtr +sisCreateScreen( __DRIscreenPrivate *sPriv ) +{ + sisScreenPtr sisScreen; + SISDRIPtr sisDRIPriv = (SISDRIPtr)sPriv->pDevPriv; + + if ( !driCheckDriDdxDrmVersions( sPriv, "SiS", 4, 0, 0, 1, 1, 0 ) ) + return NULL; + + /* Allocate the private area */ + sisScreen = (sisScreenPtr)CALLOC( sizeof(*sisScreen) ); + if ( sisScreen == NULL ) + return NULL; + + sisScreen->screenX = sisDRIPriv->width; + sisScreen->screenY = sisDRIPriv->height; + sisScreen->cpp = sisDRIPriv->bytesPerPixel; + sisScreen->irqEnabled = sisDRIPriv->bytesPerPixel; + sisScreen->deviceID = sisDRIPriv->deviceID; + sisScreen->AGPCmdBufOffset = sisDRIPriv->AGPCmdBufOffset; + sisScreen->AGPCmdBufSize = sisDRIPriv->AGPCmdBufSize; + sisScreen->sarea_priv_offset = sizeof(XF86DRISAREARec); + + sisScreen->mmio.handle = sisDRIPriv->regs.handle; + sisScreen->mmio.size = sisDRIPriv->regs.size; + if ( drmMap( sPriv->fd, sisScreen->mmio.handle, sisScreen->mmio.size, + &sisScreen->mmio.map ) ) + { + FREE( sisScreen ); + return NULL; + } + + if (sisDRIPriv->agp.size) { + sisScreen->agp.handle = sisDRIPriv->agp.handle; + sisScreen->agp.size = sisDRIPriv->agp.size; + if ( drmMap( sPriv->fd, sisScreen->agp.handle, sisScreen->agp.size, + &sisScreen->agp.map ) ) + { + sisScreen->agp.size = 0; + } + } + + sisScreen->driScreen = sPriv; + + return sisScreen; +} + +/* Destroy the device specific screen private data struct. + */ +static void +sisDestroyScreen( __DRIscreenPrivate *sPriv ) +{ + sisScreenPtr sisScreen = (sisScreenPtr)sPriv->private; + + if ( sisScreen == NULL ) + return; + + if (sisScreen->agp.size != 0) + drmUnmap( sisScreen->agp.map, sisScreen->agp.size ); + drmUnmap( sisScreen->mmio.map, sisScreen->mmio.size ); + + FREE( sisScreen ); + sPriv->private = NULL; +} + +/* Create and initialize the Mesa and driver specific pixmap buffer + * data. + */ +static GLboolean +sisCreateBuffer( __DRIscreenPrivate *driScrnPriv, + __DRIdrawablePrivate *driDrawPriv, + const __GLcontextModes *mesaVis, + GLboolean isPixmap ) +{ + if (isPixmap) + return GL_FALSE; /* not implemented */ + + driDrawPriv->driverPrivate = (void *)_mesa_create_framebuffer( + mesaVis, + GL_FALSE, /* software depth buffer? */ + mesaVis->stencilBits > 0, + mesaVis->accumRedBits > 0, + mesaVis->alphaBits > 0 ); /* XXX */ + return (driDrawPriv->driverPrivate != NULL); +} + + +static void +sisDestroyBuffer(__DRIdrawablePrivate *driDrawPriv) +{ + _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate)); +} + +__inline__ static void +sis_bitblt_copy_cmd (sisContextPtr smesa, ENGPACKET * pkt) +{ + GLint *lpdwDest, *lpdwSrc; + int i; + + lpdwSrc = (GLint *) pkt; + lpdwDest = (GLint *) (GET_IOBase (smesa) + REG_SRC_ADDR); + + mWait3DCmdQueue (10); + + for (i = 0; i < 7; i++) + *lpdwDest++ = *lpdwSrc++; + + MMIO(REG_CMD0, *(GLint *)&pkt->stdwCmd); + MMIO(REG_QueueLen, -1); +} + +static void sisCopyBuffer( __DRIdrawablePrivate *dPriv ) +{ + sisContextPtr smesa = (sisContextPtr)dPriv->driContextPriv->driverPrivate; + int i; + ENGPACKET stEngPacket; + + while ((*smesa->FrameCountPtr) - MMIO_READ(0x8a2c) > SIS_MAX_FRAME_LENGTH) + usleep(1); + + LOCK_HARDWARE(); + + stEngPacket.dwSrcBaseAddr = smesa->backOffset; + stEngPacket.dwSrcPitch = smesa->backPitch | + ((smesa->bytesPerPixel == 2) ? 0x80000000 : 0xc0000000); + stEngPacket.dwDestBaseAddr = 0; + stEngPacket.wDestPitch = smesa->frontPitch; + /* TODO: set maximum value? */ + stEngPacket.wDestHeight = smesa->virtualY; + + stEngPacket.stdwCmd.cRop = 0xcc; + + if (smesa->blockWrite) + stEngPacket.stdwCmd.cCmd0 = CMD0_PAT_FG_COLOR; + else + stEngPacket.stdwCmd.cCmd0 = 0; + stEngPacket.stdwCmd.cCmd1 = CMD1_DIR_X_INC | CMD1_DIR_Y_INC; + + for (i = 0; i < dPriv->numClipRects; i++) { + XF86DRIClipRectPtr box = &dPriv->pClipRects[i]; + stEngPacket.stdwSrcPos.wY = box->y1 - dPriv->y; + stEngPacket.stdwSrcPos.wX = box->x1 - dPriv->x; + stEngPacket.stdwDestPos.wY = box->y1; + stEngPacket.stdwDestPos.wX = box->x1; + + stEngPacket.stdwDim.wWidth = (GLshort) box->x2 - box->x1; + stEngPacket.stdwDim.wHeight = (GLshort) box->y2 - box->y1; + sis_bitblt_copy_cmd( smesa, &stEngPacket ); + } + + *(GLint *)(smesa->IOBase+0x8a2c) = *smesa->FrameCountPtr; + (*smesa->FrameCountPtr)++; + + UNLOCK_HARDWARE (); +} + + +/* Copy the back color buffer to the front color buffer */ +static void +sisSwapBuffers(__DRIdrawablePrivate *dPriv) +{ + if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) { + sisContextPtr smesa = (sisContextPtr) dPriv->driContextPriv->driverPrivate; + GLcontext *ctx = smesa->glCtx; + + if (ctx->Visual.doubleBufferMode) { + _mesa_notifySwapBuffers( ctx ); /* flush pending rendering comands */ + sisCopyBuffer( dPriv ); + } + } else { + /* XXX this shouldn't be an error but we can't handle it for now */ + _mesa_problem(NULL, "%s: drawable has no context!", __FUNCTION__); + } +} + + +/* Initialize the driver specific screen private data. + */ +static GLboolean +sisInitDriver( __DRIscreenPrivate *sPriv ) +{ + sPriv->private = (void *) sisCreateScreen( sPriv ); + + if ( !sPriv->private ) { + sisDestroyScreen( sPriv ); + return GL_FALSE; + } + + return GL_TRUE; +} + +/* Fullscreen mode change stub + */ +static GLboolean +sisOpenCloseFullScreen( __DRIcontextPrivate *driContextPriv ) +{ + return GL_TRUE; +} + +static struct __DriverAPIRec sisAPI = { + .InitDriver = sisInitDriver, + .DestroyScreen = sisDestroyScreen, + .CreateContext = sisCreateContext, + .DestroyContext = sisDestroyContext, + .CreateBuffer = sisCreateBuffer, + .DestroyBuffer = sisDestroyBuffer, + .SwapBuffers = sisSwapBuffers, + .MakeCurrent = sisMakeCurrent, + .UnbindContext = sisUnbindContext, + .OpenFullScreen = sisOpenCloseFullScreen, + .CloseFullScreen = sisOpenCloseFullScreen, + .GetSwapInfo = NULL, + .GetMSC = NULL, + .WaitForMSC = NULL, + .WaitForSBC = NULL, + .SwapBuffersMSC = NULL + +}; + +/* + * This is the bootstrap function for the driver. + * The __driCreateScreen name is the symbol that libGL.so fetches. + * Return: pointer to a __DRIscreenPrivate. + */ +#ifndef _SOLO +void *__driCreateScreen(Display *dpy, int scrn, __DRIscreen *psc, + int numConfigs, __GLXvisualConfig *config) +{ + __DRIscreenPrivate *psp; + psp = __driUtilCreateScreen( dpy, scrn, psc, numConfigs, config, &sisAPI ); + return (void *)psp; +} +#else +void *__driCreateScreen(struct DRIDriverRec *driver, + struct DRIDriverContextRec *driverContext) +{ + __DRIscreenPrivate *psp; + psp = __driUtilCreateScreen(driver, driverContext, &sisAPI); + return (void *) psp; +} +#endif -- cgit v1.2.3