Imported the Savage DRI driver from the savage-2-0-0-branch of DRI CVS

with modifications to make it work with current Mesa 6.

1 files changed, 800 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/savage/savage_xmesa.c b/src/mesa/drivers/dri/savage/savage_xmesa.c
new file mode 100644
index 0000000000..bc15e0bd30
--- /dev/null
+++ b/src/mesa/drivers/dri/savage/savage_xmesa.c
@@ -0,0 +1,800 @@
+/*
+ * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2003 S3 Graphics, Inc. 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
+ * 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
+ * VIA, S3 GRAPHICS, AND/OR ITS 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.
+ */
+
+
+#ifdef GLX_DIRECT_RENDERING
+
+#include <X11/Xlibint.h>
+#include <stdio.h>
+
+#include "savagecontext.h"
+#include "context.h"
+#include "matrix.h"
+
+#include "simple_list.h"
+
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/tnl.h"
+#include "array_cache/acache.h"
+
+#include "tnl/t_pipeline.h"
+
+#include "drivers/common/driverfuncs.h"
+
+#include "savagedd.h"
+#include "savagestate.h"
+#include "savagetex.h"
+#include "savagespan.h"
+#include "savagetris.h"
+#include "savagevb.h"
+#include "savageioctl.h"
+#include "savage_bci.h"
+
+#include "savage_dri.h"
+
+#include "savagedma.h"
+
+#ifndef SAVAGE_DEBUG
+int SAVAGE_DEBUG = (0
+/*     		  | DEBUG_ALWAYS_SYNC  */
+/*  		  | DEBUG_VERBOSE_RING    */
+/*  		  | DEBUG_VERBOSE_OUTREG  */
+/*  		  | DEBUG_VERBOSE_MSG */
+/*  		  | DEBUG_NO_OUTRING */
+/*  		  | DEBUG_NO_OUTREG */
+/*  		  | DEBUG_VERBOSE_API */
+/*  		  | DEBUG_VERBOSE_2D */
+/*  		  | DEBUG_VERBOSE_DRI */
+/*  		  | DEBUG_VALIDATE_RING */
+/*  		  | DEBUG_VERBOSE_IOCTL */
+		  );
+#endif
+
+
+/*For time caculating test*/
+#if defined(DEBUG_TIME) && DEBUG_TIME
+struct timeval tv_s,tv_f;
+unsigned long time_sum=0;
+struct timeval tv_s1,tv_f1;
+#endif
+
+/* this is first function called in dirver*/
+
+static GLboolean
+savageInitDriver(__DRIscreenPrivate *sPriv)
+{
+  savageScreenPrivate *savageScreen;
+  SAVAGEDRIPtr         gDRIPriv = (SAVAGEDRIPtr)sPriv->pDevPriv;
+
+
+  /* Check the DRI version */
+   {
+      int major, minor, patch;
+      if (XF86DRIQueryVersion(sPriv->display, &major, &minor, &patch)) {
+         if (major != 4 || minor < 0) {
+	    __driUtilMessage("savage DRI driver expected DRI version 4.0.x but got version %d.%d.%d", major, minor, patch);
+            return GL_FALSE;
+         }
+      }
+   }
+
+   /* Check that the DDX driver version is compatible */
+   if (sPriv->ddxMajor != 1 ||
+       sPriv->ddxMinor < 0) {
+      __driUtilMessage("savage DRI driver expected DDX driver version 1.0.x but got version %d.%d.%d", sPriv->ddxMajor, sPriv->ddxMinor, sPriv->ddxPatch);
+      return GL_FALSE;
+   }
+
+   /* Check that the DRM driver version is compatible */
+   if (sPriv->drmMajor != 1 ||
+       sPriv->drmMinor < 0) {
+      __driUtilMessage("savage DRI driver expected DRM driver version 1.1.x but got version %d.%d.%d", sPriv->drmMajor, sPriv->drmMinor, sPriv->drmPatch);
+      return GL_FALSE;
+   }
+	
+   /* Allocate the private area */
+   savageScreen = (savageScreenPrivate *)Xmalloc(sizeof(savageScreenPrivate));
+   if (!savageScreen)
+      return GL_FALSE;
+
+   savageScreen->driScrnPriv = sPriv;
+   sPriv->private = (void *)savageScreen;
+
+   savageScreen->chipset=gDRIPriv->chipset; 
+   savageScreen->width=gDRIPriv->width;
+   savageScreen->height=gDRIPriv->height;
+   savageScreen->mem=gDRIPriv->mem;
+   savageScreen->cpp=gDRIPriv->cpp;
+   savageScreen->zpp=gDRIPriv->zpp;
+   savageScreen->frontPitch=gDRIPriv->frontPitch;
+   savageScreen->frontOffset=gDRIPriv->frontOffset;
+   savageScreen->frontBitmapDesc = gDRIPriv->frontBitmapDesc;
+   
+   if (gDRIPriv->cpp == 4) 
+       savageScreen->frontFormat = DV_PF_8888;
+   else
+       savageScreen->frontFormat = DV_PF_565;
+
+   savageScreen->backOffset = gDRIPriv->backOffset; 
+   savageScreen->backBitmapDesc = gDRIPriv->backBitmapDesc; 
+   savageScreen->depthOffset=gDRIPriv->depthOffset;
+   savageScreen->depthBitmapDesc = gDRIPriv->depthBitmapDesc; 
+#if 0   
+   savageScreen->backPitch = gDRIPriv->auxPitch;
+   savageScreen->backPitchBits = gDRIPriv->auxPitchBits;
+#endif   
+   savageScreen->textureOffset[SAVAGE_CARD_HEAP] = 
+                                   gDRIPriv->textureOffset;
+   savageScreen->textureSize[SAVAGE_CARD_HEAP] = 
+                                   gDRIPriv->textureSize;
+   savageScreen->logTextureGranularity[SAVAGE_CARD_HEAP] = 
+                                   gDRIPriv->logTextureGranularity;
+
+   savageScreen->textureOffset[SAVAGE_AGP_HEAP] = 
+                                   gDRIPriv->agpTextures.handle;
+   savageScreen->textureSize[SAVAGE_AGP_HEAP] = 
+                                   gDRIPriv->agpTextures.size;
+   savageScreen->logTextureGranularity[SAVAGE_AGP_HEAP] =
+                                   gDRIPriv->logAgpTextureGranularity;
+   
+   savageScreen->back.handle = gDRIPriv->backbuffer;
+   savageScreen->back.size = gDRIPriv->backbufferSize;
+   savageScreen->back.map = 
+       (drmAddress)(((unsigned int)sPriv->pFB)+gDRIPriv->backOffset);
+   
+   savageScreen->depth.handle = gDRIPriv->depthbuffer;
+   savageScreen->depth.size = gDRIPriv->depthbufferSize;
+
+   savageScreen->depth.map = 
+              (drmAddress)(((unsigned int)sPriv->pFB)+gDRIPriv->depthOffset);
+   
+   savageScreen->sarea_priv_offset = gDRIPriv->sarea_priv_offset;
+
+   savageScreen->texVirtual[SAVAGE_CARD_HEAP] = 
+             (drmAddress)(((unsigned int)sPriv->pFB)+gDRIPriv->textureOffset);
+#if 0
+   savageDDFastPathInit();
+   savageDDTrifuncInit();
+   savageDDSetupInit();
+#endif
+   return GL_TRUE;
+}
+
+/* Accessed by dlsym from dri_mesa_init.c
+ */
+static void
+savageDestroyScreen(__DRIscreenPrivate *sPriv)
+{
+   savageScreenPrivate *savageScreen = (savageScreenPrivate *)sPriv->private;
+
+   
+   Xfree(savageScreen);
+   sPriv->private = NULL;
+}
+
+#if 0
+GLvisual *XMesaCreateVisual(Display *dpy,
+                            __DRIscreenPrivate *driScrnPriv,
+                            const XVisualInfo *visinfo,
+                            const __GLXvisualConfig *config)
+{
+   /* Drivers may change the args to _mesa_create_visual() in order to
+    * setup special visuals.
+    */
+   return _mesa_create_visual( config->rgba,
+                               config->doubleBuffer,
+                               config->stereo,
+                               _mesa_bitcount(visinfo->red_mask),
+                               _mesa_bitcount(visinfo->green_mask),
+                               _mesa_bitcount(visinfo->blue_mask),
+                               config->alphaSize,
+                               0, /* index bits */
+                               config->depthSize,
+                               config->stencilSize,
+                               config->accumRedSize,
+                               config->accumGreenSize,
+                               config->accumBlueSize,
+                               config->accumAlphaSize,
+                               0 /* num samples */ );
+}
+#endif
+
+
+static GLboolean
+savageCreateContext( const __GLcontextModes *mesaVis,
+		     __DRIcontextPrivate *driContextPriv,
+		     void *sharedContextPrivate )
+{
+   GLcontext *ctx, *shareCtx;
+   savageContextPtr imesa;
+   __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
+   struct dd_function_table functions;
+   SAVAGEDRIPtr         gDRIPriv = (SAVAGEDRIPtr)sPriv->pDevPriv;
+   savageScreenPrivate *savageScreen = (savageScreenPrivate *)sPriv->private;
+   drm_savage_sarea_t *saPriv=(drm_savage_sarea_t *)(((char*)sPriv->pSAREA)+
+						 savageScreen->sarea_priv_offset);
+   int i;
+   imesa = (savageContextPtr)Xcalloc(sizeof(savageContext), 1);
+   if (!imesa) {
+      return GL_FALSE;
+   }
+
+   /* Init default driver functions then plug in savage-specific texture
+    * functions that are needed as early as during context creation. */
+   _mesa_init_driver_functions( &functions );
+   savageDDInitTextureFuncs( &functions );
+
+   /* Allocate the Mesa context */
+   if (sharedContextPrivate)
+      shareCtx = ((savageContextPtr) sharedContextPrivate)->glCtx;
+   else 
+      shareCtx = NULL;
+   ctx = _mesa_create_context(mesaVis, shareCtx, &functions, imesa);
+   if (!ctx) {
+      Xfree(imesa);
+      return GL_FALSE;
+   }
+   driContextPriv->driverPrivate = imesa;
+
+   /*   BEGIN;*/
+   /* Set the maximum texture size small enough that we can guarentee
+    * that both texture units can bind a maximal texture and have them
+    * in memory at once.
+    */
+   if (savageScreen->textureSize[SAVAGE_CARD_HEAP] < 2*1024*1024) {
+      ctx->Const.MaxTextureLevels = 9;
+   } else if (savageScreen->textureSize[SAVAGE_CARD_HEAP] < 8*1024*1024) {
+      ctx->Const.MaxTextureLevels = 10;
+   } else {
+      ctx->Const.MaxTextureLevels = 11;
+   }
+   if (savageScreen->chipset >= S3_SAVAGE4)
+       ctx->Const.MaxTextureUnits = 2;
+   else
+       ctx->Const.MaxTextureUnits = 1;
+
+#if 0
+   ctx->Const.MinLineWidth = 1.0;
+   ctx->Const.MinLineWidthAA = 1.0;
+   ctx->Const.MaxLineWidth = 3.0;
+   ctx->Const.MaxLineWidthAA = 3.0;
+   ctx->Const.LineWidthGranularity = 1.0;
+#endif
+   
+   /* Dri stuff
+    */
+   imesa->hHWContext = driContextPriv->hHWContext;
+   imesa->driFd = sPriv->fd;
+   imesa->driHwLock = &sPriv->pSAREA->lock;
+   
+   imesa->savageScreen = savageScreen;
+   imesa->driScreen = sPriv;
+   imesa->sarea = saPriv;
+   imesa->glBuffer = NULL;
+   
+   /* DMA buffer */
+
+   /*The shadow pointer*/
+   imesa->shadowPointer = 
+     (volatile GLuint *)((((GLuint)(&saPriv->shadow_status)) + 31) & 0xffffffe0L) ;
+   /* here we use eventTag1 because eventTag0 is used by HWXvMC*/
+   imesa->eventTag1 = (volatile GLuint *)(imesa->shadowPointer + 6);
+   /*   imesa->eventTag1=(volatile GLuint *)(imesa->MMIO_BASE+0x48c04);*/
+   imesa->shadowCounter = MAX_SHADOWCOUNTER;
+   imesa->shadowStatus = GL_TRUE;/*Will judge by 2d message */
+
+   if (drmMap(sPriv->fd, 
+	      gDRIPriv->registers.handle, 
+	      gDRIPriv->registers.size, 
+	      (drmAddress *)&(gDRIPriv->registers.map)) != 0) 
+   {
+      Xfree(savageScreen);
+      sPriv->private = NULL;
+      return GL_FALSE;
+   }
+   
+   if (drmMap(sPriv->fd, 
+	      gDRIPriv->agpTextures.handle, 
+	      gDRIPriv->agpTextures.size, 
+	      (drmAddress *)&(gDRIPriv->agpTextures.map)) != 0) 
+   {
+      Xfree(savageScreen);
+      sPriv->private = NULL;
+      return GL_FALSE;
+   }
+
+/* agp texture*/
+   savageScreen->texVirtual[SAVAGE_AGP_HEAP] = 
+                        (drmAddress)(gDRIPriv->agpTextures.map);
+
+   
+
+   gDRIPriv->BCIcmdBuf.map = (drmAddress *)
+                           ((unsigned int)gDRIPriv->registers.map+0x00010000);
+      
+   imesa->MMIO_BASE = (GLuint)gDRIPriv->registers.map;
+   imesa->BCIBase= (GLuint)gDRIPriv->BCIcmdBuf.map;
+
+   savageScreen->aperture.handle = gDRIPriv->aperture.handle;
+   savageScreen->aperture.size   = gDRIPriv->aperture.size;
+   if (drmMap(sPriv->fd, 
+	      savageScreen->aperture.handle, 
+	      savageScreen->aperture.size, 
+	      (drmAddress *)&savageScreen->aperture.map) != 0) 
+   {
+      Xfree(savageScreen);
+      sPriv->private = NULL;
+      return GL_FALSE;
+   } 
+   
+   
+
+
+   
+   for(i=0;i<5;i++)
+   {
+       imesa->apertureBase[i] = ((GLuint)savageScreen->aperture.map + 
+                                 0x01000000 * i );
+       
+   
+   }
+   
+   {
+      volatile unsigned int * tmp;
+      
+      tmp=(volatile unsigned int *)(imesa->MMIO_BASE + 0x850C);
+      
+      
+      tmp=(volatile unsigned int *)(imesa->MMIO_BASE + 0x48C40);
+      
+   
+      tmp=(volatile unsigned int *)(imesa->MMIO_BASE + 0x48C44);
+
+   
+      tmp=(volatile unsigned int *)(imesa->MMIO_BASE + 0x48C48);
+
+   
+   
+   }
+   
+   imesa->aperturePitch = gDRIPriv->aperturePitch;
+   
+   
+   /* change texHeap initialize to support two kind of texture heap*/
+   /* here is some parts of initialization, others in InitDriver() */
+    
+   imesa->lastTexHeap = savageScreen->texVirtual[SAVAGE_AGP_HEAP] ? 2 : 1;
+   
+   /*allocate texHeap for multi-tex*/ 
+   {
+     int i;
+     
+     for(i=0;i<SAVAGE_NR_TEX_HEAPS;i++)
+     {
+       imesa->texHeap[i] = mmInit( 0, savageScreen->textureSize[i] );
+       make_empty_list(&imesa->TexObjList[i]);
+     }
+     
+     make_empty_list(&imesa->SwappedOut);
+   }
+
+   imesa->hw_stencil = GL_FALSE;
+#if HW_STENCIL
+   imesa->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24;
+#endif
+   imesa->depth_scale = (imesa->savageScreen->zpp == 2) ?
+       (1.0F/0x10000):(1.0F/0x1000000);
+
+   /* Utah stuff
+    */
+   imesa->new_state = ~0;
+   imesa->RenderIndex = ~0;
+   imesa->dirty = ~0;
+   imesa->vertex_format = 0;
+   imesa->TextureMode = ctx->Texture.Unit[0].EnvMode;
+   imesa->CurrentTexObj[0] = 0;
+   imesa->CurrentTexObj[1] = 0;
+   imesa->texAge[SAVAGE_CARD_HEAP]=0;
+   imesa->texAge[SAVAGE_AGP_HEAP]=0;
+
+   /* Initialize the software rasterizer and helper modules.
+    */
+   _swrast_CreateContext( ctx );
+   _ac_CreateContext( ctx );
+   _tnl_CreateContext( ctx );
+   
+   _swsetup_CreateContext( ctx );
+
+   /* Install the customized pipeline:
+    */
+#if 0
+   _tnl_destroy_pipeline( ctx );
+   _tnl_install_pipeline( ctx, savage_pipeline );
+#endif
+
+   /* Configure swrast to match hardware characteristics:
+    */
+   _swrast_allow_pixel_fog( ctx, GL_FALSE );
+   _swrast_allow_vertex_fog( ctx, GL_TRUE );
+
+   ctx->DriverCtx = (void *) imesa;
+   imesa->glCtx = ctx;
+   if (savageDMAInit(imesa) == GL_FALSE)
+       return GL_FALSE;  
+   
+   savageDDExtensionsInit( ctx );
+
+   savageDDInitStateFuncs( ctx );
+   savageDDInitSpanFuncs( ctx );
+   savageDDInitDriverFuncs( ctx );
+   savageDDInitIoctlFuncs( ctx );
+   savageInitTriFuncs( ctx );
+
+   savageInitVB( ctx );
+   savageDDInitState( imesa );
+
+   driContextPriv->driverPrivate = (void *) imesa;
+
+   return GL_TRUE;
+}
+
+static void
+savageDestroyContext(__DRIcontextPrivate *driContextPriv)
+{
+   savageContextPtr imesa = (savageContextPtr) driContextPriv->driverPrivate;
+
+   assert (imesa); /* should never be NULL */
+   if (imesa) {
+      savageTextureObjectPtr next_t, t;
+
+      /* update for multi-tex*/ 
+      {
+       int i;
+       for(i=0;i<SAVAGE_NR_TEX_HEAPS;i++)
+          foreach_s (t, next_t, &(imesa->TexObjList[i]))
+	 savageDestroyTexObj(imesa, t);
+      }
+      foreach_s (t, next_t, &(imesa->SwappedOut))
+	 savageDestroyTexObj(imesa, t);
+      /*free the dma buffer*/
+      savageDMAClose(imesa);
+      _swsetup_DestroyContext(imesa->glCtx );
+      _tnl_DestroyContext( imesa->glCtx );
+      _ac_DestroyContext( imesa->glCtx );
+      _swrast_DestroyContext( imesa->glCtx );
+
+      savageFreeVB( imesa->glCtx );
+
+      /* free the Mesa context */
+      imesa->glCtx->DriverCtx = NULL;
+      _mesa_destroy_context(imesa->glCtx);
+
+      /* no longer use vertex_dma_buf*/
+      Xfree(imesa);
+   }
+}
+
+static GLboolean
+savageCreateBuffer( __DRIscreenPrivate *driScrnPriv,
+		    __DRIdrawablePrivate *driDrawPriv,
+		    const __GLcontextModes *mesaVis,
+		    GLboolean isPixmap)
+{
+   if (isPixmap) {
+      return GL_FALSE; /* not implemented */
+   }
+   else {
+#if HW_STENCIL
+       GLboolean swStencil = mesaVis->stencilBits > 0 && mesaVis->depthBits != 24;
+#else
+       GLboolean swStencil = mesaVis->stencilBits > 0;
+#endif
+      driDrawPriv->driverPrivate = (void *) 
+         _mesa_create_framebuffer(mesaVis,
+                                  GL_FALSE,  /* software depth buffer? */
+                                  swStencil,
+                                  mesaVis->accumRedBits > 0,
+                                  mesaVis->alphaBits > 0 );
+
+      return (driDrawPriv->driverPrivate != NULL);
+   }
+}
+
+static void
+savageDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
+{
+   _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+}
+
+#if 0
+void XMesaSwapBuffers(__DRIdrawablePrivate *driDrawPriv)
+{
+   /* XXX should do swap according to the buffer, not the context! */
+   savageContextPtr imesa = savageCtx; 
+
+   FLUSH_VB( imesa->glCtx, "swap buffers" );
+   savageSwapBuffers(imesa);
+}
+#endif
+
+void savageXMesaSetFrontClipRects( savageContextPtr imesa )
+{
+   __DRIdrawablePrivate *dPriv = imesa->driDrawable;
+
+   imesa->numClipRects = dPriv->numClipRects;
+   imesa->pClipRects = dPriv->pClipRects;
+   imesa->dirty |= SAVAGE_UPLOAD_CLIPRECTS;
+   imesa->drawX = dPriv->x;
+   imesa->drawY = dPriv->y;
+
+   savageEmitDrawingRectangle( imesa );
+}
+
+
+void savageXMesaSetBackClipRects( savageContextPtr imesa )
+{
+   __DRIdrawablePrivate *dPriv = imesa->driDrawable;
+
+   if (dPriv->numBackClipRects == 0) 
+   {
+
+
+      imesa->numClipRects = dPriv->numClipRects;
+      imesa->pClipRects = dPriv->pClipRects;
+      imesa->drawX = dPriv->x;
+      imesa->drawY = dPriv->y;
+   } else {
+
+
+      imesa->numClipRects = dPriv->numBackClipRects;
+      imesa->pClipRects = dPriv->pBackClipRects;
+      imesa->drawX = dPriv->backX;
+      imesa->drawY = dPriv->backY;
+   }
+
+   savageEmitDrawingRectangle( imesa );
+   imesa->dirty |= SAVAGE_UPLOAD_CLIPRECTS;
+
+
+}
+
+
+static void savageXMesaWindowMoved( savageContextPtr imesa ) 
+{
+   if (0)
+      fprintf(stderr, "savageXMesaWindowMoved\n\n");
+
+   switch (imesa->glCtx->Color._DrawDestMask) {
+   case FRONT_LEFT_BIT:
+      savageXMesaSetFrontClipRects( imesa );
+      break;
+   case BACK_LEFT_BIT:
+      savageXMesaSetBackClipRects( imesa );
+      break;
+   default:
+       break;
+   }
+}
+
+
+static GLboolean
+savageUnbindContext(__DRIcontextPrivate *driContextPriv)
+{
+   savageContextPtr savage = (savageContextPtr) driContextPriv->driverPrivate;
+   if (savage)
+      savage->dirty = ~0;
+
+   return GL_TRUE;
+}
+
+static GLboolean
+savageOpenFullScreen(__DRIcontextPrivate *driContextPriv)
+{
+    
+  
+    
+    if (driContextPriv) {
+      savageContextPtr imesa = (savageContextPtr) driContextPriv->driverPrivate;
+      imesa->IsFullScreen = GL_TRUE;
+      imesa->backup_frontOffset = imesa->savageScreen->frontOffset;
+      imesa->backup_backOffset = imesa->savageScreen->backOffset;
+      imesa->backup_frontBitmapDesc = imesa->savageScreen->frontBitmapDesc;
+      imesa->savageScreen->frontBitmapDesc = imesa->savageScreen->backBitmapDesc;      
+      imesa->toggle = TARGET_BACK;
+   }
+
+    return GL_TRUE;
+}
+
+static GLboolean
+savageCloseFullScreen(__DRIcontextPrivate *driContextPriv)
+{
+    
+    if (driContextPriv) {
+      savageContextPtr imesa = (savageContextPtr) driContextPriv->driverPrivate;
+      WAIT_IDLE_EMPTY;
+      imesa->IsFullScreen = GL_FALSE;   
+      imesa->savageScreen->frontOffset = imesa->backup_frontOffset;
+      imesa->savageScreen->backOffset = imesa->backup_backOffset;
+      imesa->savageScreen->frontBitmapDesc = imesa->backup_frontBitmapDesc;
+   }
+    return GL_TRUE;
+}
+
+
+static GLboolean
+savageMakeCurrent(__DRIcontextPrivate *driContextPriv,
+		  __DRIdrawablePrivate *driDrawPriv,
+		  __DRIdrawablePrivate *driReadPriv)
+{
+   if (driContextPriv) {
+      savageContextPtr imesa = (savageContextPtr) driContextPriv->driverPrivate;
+      
+      imesa->driReadable = driReadPriv;
+      imesa->driDrawable = driDrawPriv;
+      imesa->mesa_drawable = driDrawPriv;
+      imesa->dirty = ~0;
+      
+      _mesa_make_current2(imesa->glCtx,
+                          (GLframebuffer *) driDrawPriv->driverPrivate,
+                          (GLframebuffer *) driReadPriv->driverPrivate);
+      
+      savageXMesaWindowMoved( imesa );
+      
+      if (!imesa->glCtx->Viewport.Width)
+	 _mesa_set_viewport(imesa->glCtx, 0, 0,
+                            driDrawPriv->w, driDrawPriv->h);
+   }
+   else 
+   {
+      _mesa_make_current(NULL, NULL);
+   }
+   return GL_TRUE;
+}
+
+
+void savageGetLock( savageContextPtr imesa, GLuint flags ) 
+{
+   __DRIdrawablePrivate *dPriv = imesa->driDrawable;
+   __DRIscreenPrivate *sPriv = imesa->driScreen;
+   drm_savage_sarea_t *sarea = imesa->sarea;
+   int me = imesa->hHWContext;
+   int stamp = dPriv->lastStamp; 
+   int heap;
+
+  
+
+   /* We know there has been contention.
+    */
+   drmGetLock(imesa->driFd, imesa->hHWContext, flags);	
+
+
+   /* Note contention for throttling hint
+    */
+   imesa->any_contend = 1;
+
+   /* If the window moved, may need to set a new cliprect now.
+    *
+    * NOTE: This releases and regains the hw lock, so all state
+    * checking must be done *after* this call:
+    */
+   DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);		
+
+
+  
+
+   /* If we lost context, need to dump all registers to hardware.
+    * Note that we don't care about 2d contexts, even if they perform
+    * accelerated commands, so the DRI locking in the X server is even
+    * more broken than usual.
+    */
+   if (sarea->ctxOwner != me) {
+      imesa->dirty |= (SAVAGE_UPLOAD_CTX |
+		       SAVAGE_UPLOAD_CLIPRECTS |
+		       SAVAGE_UPLOAD_TEX0 |
+		       SAVAGE_UPLOAD_TEX1);
+      imesa->Registers.changed.uiRegistersChanged = __HW_ALL_CHANGED;
+      sarea->ctxOwner = me;
+   }
+
+   /* Shared texture managment - if another client has played with
+    * texture space, figure out which if any of our textures have been
+    * ejected, and update our global LRU.
+    */
+   /*frank just for compiling,texAge,texList,AGP*/ 
+   
+   for(heap= 0 ;heap < imesa->lastTexHeap ; heap++)
+   {
+       if (sarea->texAge[heap] != imesa->texAge[heap]) {
+           int sz = 1 << (imesa->savageScreen->logTextureGranularity[heap]);
+           int idx, nr = 0;
+
+      /* Have to go right round from the back to ensure stuff ends up
+       * LRU in our local list...
+       */
+           for (idx = sarea->texList[heap][SAVAGE_NR_TEX_REGIONS].prev ; 
+	       idx != SAVAGE_NR_TEX_REGIONS && nr < SAVAGE_NR_TEX_REGIONS ; 
+	       idx = sarea->texList[heap][idx].prev, nr++)
+           {
+	       if (sarea->texList[heap][idx].age > imesa->texAge[heap])
+	       {
+	           savageTexturesGone(imesa, heap ,idx * sz, sz, 
+	                              sarea->texList[heap][idx].in_use);
+	       }
+           }
+
+           if (nr == SAVAGE_NR_TEX_REGIONS) 
+           {
+	      savageTexturesGone(imesa, heap, 0, 
+	                         imesa->savageScreen->textureSize[heap], 0);
+	      savageResetGlobalLRU( imesa , heap );
+           }
+
+           imesa->dirty |= SAVAGE_UPLOAD_TEX0IMAGE;
+           imesa->dirty |= SAVAGE_UPLOAD_TEX1IMAGE;
+           imesa->texAge[heap] = sarea->texAge[heap];
+       }
+   } /* end of for loop */ 
+   
+   if (dPriv->lastStamp != stamp)
+      savageXMesaWindowMoved( imesa );
+
+  
+   
+}
+
+
+
+static const struct __DriverAPIRec savageAPI = {
+   savageInitDriver,
+   savageDestroyScreen,
+   savageCreateContext,
+   savageDestroyContext,
+   savageCreateBuffer,
+   savageDestroyBuffer,
+   savageSwapBuffers,
+   savageMakeCurrent,
+   savageUnbindContext,
+   savageOpenFullScreen,
+   savageCloseFullScreen
+};
+
+
+
+/*
+ * This is the bootstrap function for the driver.
+ * The __driCreateScreen name is the symbol that libGL.so fetches.
+ * Return:  pointer to a __DRIscreenPrivate.
+ */
+void *__driCreateScreen(Display *dpy, int scrn, __DRIscreen *psc,
+                        int numConfigs, __GLXvisualConfig *config)
+{
+   __DRIscreenPrivate *psp;
+   psp = __driUtilCreateScreen(dpy, scrn, psc, numConfigs, config, &savageAPI);
+   return (void *) psp;
+}
+
+
+#endif