Import s3virge and trident drivers. Not functional yet; no Makefile, no DRI-aware DDX.

6 files changed, 2854 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/trident/trident_context.c b/src/mesa/drivers/dri/trident/trident_context.c
new file mode 100644
index 0000000000..168e7d1fc4
--- /dev/null
+++ b/src/mesa/drivers/dri/trident/trident_context.c
@@ -0,0 +1,419 @@
+/*
+ * Copyright 2002 by Alan Hourihane, Sychdyn, North Wales, UK.
+ *
+ * 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 Alan Hourihane not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Alan Hourihane makes no representations
+ * about the suitability of this software for any purpose.  It is provided
+ * "as is" without express or implied warranty.
+ *
+ * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL ALAN HOURIHANE 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.
+ *
+ * Authors:  Alan Hourihane, <alanh@fairlite.demon.co.uk>
+ *
+ * Trident CyberBladeXP driver.
+ *
+ */
+#include "trident_dri.h"
+#include "trident_context.h"
+#include "trident_lock.h"
+
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "array_cache/acache.h"
+
+#include "tnl/tnl.h"
+#include "tnl/t_pipeline.h"
+
+#include "context.h"
+#include "simple_list.h"
+#include "mem.h"
+#include "matrix.h"
+#include "extensions.h"
+#if defined(USE_X86_ASM)
+#include "X86/common_x86_asm.h"
+#endif
+#include "simple_list.h"
+#include "mem.h"
+#include "mm.h"
+
+static const struct gl_pipeline_stage *trident_pipeline[] = {
+   &_tnl_vertex_transform_stage, 
+   &_tnl_normal_transform_stage, 
+   &_tnl_lighting_stage,
+   &_tnl_texgen_stage, 
+   &_tnl_texture_transform_stage, 
+   &_tnl_render_stage,		
+   0,
+};
+
+
+GLboolean tridentCreateContext( Display *dpy, const __GLcontextModes *glVisual,
+			     __DRIcontextPrivate *driContextPriv,
+                     	     void *sharedContextPrivate)
+{
+   GLcontext *ctx, *shareCtx;
+   __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
+   tridentContextPtr tmesa;
+   tridentScreenPtr tridentscrn;
+#if 0
+   drm_trident_sarea_t *saPriv=(drm_trident_sarea_t *)(((char*)sPriv->pSAREA)+
+						 sizeof(XF86DRISAREARec));
+#endif
+
+   tmesa = (tridentContextPtr) CALLOC( sizeof(*tmesa) );
+   if ( !tmesa ) return GL_FALSE;
+
+   /* Allocate the Mesa context */
+   if (sharedContextPrivate)
+      shareCtx = ((tridentContextPtr) sharedContextPrivate)->glCtx;
+   else
+      shareCtx = NULL;
+
+   tmesa->glCtx = _mesa_create_context(glVisual, shareCtx, tmesa, GL_TRUE);
+   if (!tmesa->glCtx) {
+      FREE(tmesa);
+      return GL_FALSE;
+   }
+
+   tmesa->display = dpy;
+
+   tmesa->driContext = driContextPriv;
+   tmesa->driScreen = sPriv;
+   tmesa->driDrawable = NULL; /* Set by XMesaMakeCurrent */
+
+   tmesa->hHWContext = driContextPriv->hHWContext;
+   tmesa->driHwLock = &sPriv->pSAREA->lock;
+   tmesa->driFd = sPriv->fd;
+#if 0
+   tmesa->sarea = saPriv;
+#endif
+
+   tridentscrn = tmesa->tridentScreen = (tridentScreenPtr)(sPriv->private);
+
+   ctx = tmesa->glCtx;
+
+   ctx->Const.MaxTextureLevels = 13;  /* 4K by 4K?  Is that right? */
+   ctx->Const.MaxTextureUnits = 1; /* Permedia 3 */
+
+   ctx->Const.MinLineWidth = 0.0;
+   ctx->Const.MaxLineWidth = 255.0;
+
+   ctx->Const.MinLineWidthAA = 0.0;
+   ctx->Const.MaxLineWidthAA = 65536.0;
+
+   ctx->Const.MinPointSize = 0.0;
+   ctx->Const.MaxPointSize = 255.0;
+
+   ctx->Const.MinPointSizeAA = 0.5; /* 4x4 quality mode */
+   ctx->Const.MaxPointSizeAA = 16.0; 
+   ctx->Const.PointSizeGranularity = 0.25;
+
+#if 0
+   tmesa->texHeap = mmInit( 0, tmesa->tridentScreen->textureSize );
+
+   make_empty_list(&tmesa->TexObjList);
+   make_empty_list(&tmesa->SwappedOut);
+
+   tmesa->CurrentTexObj[0] = 0;
+   tmesa->CurrentTexObj[1] = 0; /* Permedia 3, second texture */
+
+   tmesa->RenderIndex = ~0;
+#endif
+
+   /* Initialize the software rasterizer and helper modules.
+    */
+   _swrast_CreateContext( ctx );
+   _ac_CreateContext( ctx );
+   _tnl_CreateContext( ctx );
+   _swsetup_CreateContext( ctx );
+
+   /* Install the customized pipeline:
+    */
+   _tnl_destroy_pipeline( ctx );
+   _tnl_install_pipeline( ctx, trident_pipeline );
+
+   /* Configure swrast to match hardware characteristics:
+    */
+   _swrast_allow_pixel_fog( ctx, GL_FALSE );
+   _swrast_allow_vertex_fog( ctx, GL_TRUE );
+
+   tridentInitVB( ctx );
+   tridentDDInitExtensions( ctx );
+   tridentDDInitDriverFuncs( ctx );
+   tridentDDInitStateFuncs( ctx );
+#if 0
+   tridentDDInitSpanFuncs( ctx );
+   tridentDDInitTextureFuncs( ctx );
+#endif
+   tridentDDInitTriFuncs( ctx );
+   tridentDDInitState( tmesa );
+
+    driContextPriv->driverPrivate = (void *)tmesa;
+
+   UNLOCK_HARDWARE(tmesa);
+
+    return GL_TRUE;
+}
+
+static void 
+tridentDestroyContext(__DRIcontextPrivate *driContextPriv)
+{
+    tridentContextPtr tmesa = (tridentContextPtr)driContextPriv->driverPrivate;
+
+    if (tmesa) {
+      _swsetup_DestroyContext( tmesa->glCtx );
+      _tnl_DestroyContext( tmesa->glCtx );
+      _ac_DestroyContext( tmesa->glCtx );
+      _swrast_DestroyContext( tmesa->glCtx );
+
+      /* free the Mesa context */
+      tmesa->glCtx->DriverCtx = NULL;
+      _mesa_destroy_context(tmesa->glCtx);
+
+      Xfree(tmesa);
+      driContextPriv->driverPrivate = NULL;
+    }
+}
+
+
+static GLboolean
+tridentCreateBuffer( Display *dpy,
+                   __DRIscreenPrivate *driScrnPriv,
+                   __DRIdrawablePrivate *driDrawPriv,
+                   const __GLcontextModes *mesaVis,
+                   GLboolean isPixmap )
+{
+   if (isPixmap) {
+      return GL_FALSE; /* not implemented */
+   }
+   else {
+      driDrawPriv->driverPrivate = (void *) 
+         _mesa_create_framebuffer(mesaVis,
+                                  GL_FALSE,  /* software depth buffer? */
+                                  mesaVis->stencilBits > 0,
+                                  mesaVis->accumRedBits > 0,
+                                  mesaVis->alphaBits > 0
+                                  );
+      return (driDrawPriv->driverPrivate != NULL);
+   }
+}
+
+
+static void
+tridentDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
+{
+   _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+}
+
+static void
+tridentSwapBuffers(Display *dpy, void *drawablePrivate)
+{
+   __DRIdrawablePrivate *dPriv = (__DRIdrawablePrivate *) drawablePrivate;
+   (void) dpy;
+
+   if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) {
+      tridentContextPtr tmesa;
+      GLcontext *ctx;
+      tmesa = (tridentContextPtr) dPriv->driContextPriv->driverPrivate;
+      ctx = tmesa->glCtx;
+      if (ctx->Visual.doubleBufferMode) {
+         _mesa_swapbuffers( ctx );  /* flush pending rendering comands */
+         tridentCopyBuffer( dPriv );
+      }
+   }
+   else {
+      /* XXX this shouldn't be an error but we can't handle it for now */
+      _mesa_problem(NULL, "tridentSwapBuffers: drawable has no context!\n");
+   }
+}
+
+static GLboolean 
+tridentMakeCurrent(__DRIcontextPrivate *driContextPriv,
+		 __DRIdrawablePrivate *driDrawPriv,
+		 __DRIdrawablePrivate *driReadPriv)
+{
+    if (driContextPriv) {
+	GET_CURRENT_CONTEXT(ctx);
+	tridentContextPtr oldCtx = ctx ? TRIDENT_CONTEXT(ctx) : NULL;
+	tridentContextPtr newCtx = (tridentContextPtr) driContextPriv->driverPrivate;
+
+	if ( newCtx != oldCtx ) {
+	    newCtx->dirty = ~0;
+	}
+
+	if (newCtx->driDrawable != driDrawPriv) {
+	    newCtx->driDrawable = driDrawPriv;
+#if 0
+	    tridentUpdateWindow ( newCtx->glCtx );
+	    tridentUpdateViewportOffset( newCtx->glCtx );
+#endif
+	}
+
+   newCtx->drawOffset = newCtx->tridentScreen->backOffset;
+   newCtx->drawPitch = newCtx->tridentScreen->backPitch;
+
+	_mesa_make_current2( newCtx->glCtx, 
+			  (GLframebuffer *) driDrawPriv->driverPrivate,
+			  (GLframebuffer *) driReadPriv->driverPrivate );
+
+	if (!newCtx->glCtx->Viewport.Width) {
+	    _mesa_set_viewport(newCtx->glCtx, 0, 0, 
+					driDrawPriv->w, driDrawPriv->h);
+	}
+    } else {
+	_mesa_make_current( 0, 0 );
+    }
+    return GL_TRUE;
+}
+
+
+static GLboolean 
+tridentUnbindContext( __DRIcontextPrivate *driContextPriv )
+{
+   return GL_TRUE;
+}
+
+static GLboolean
+tridentOpenFullScreen(__DRIcontextPrivate *driContextPriv)
+{
+    return GL_TRUE;
+}
+
+static GLboolean
+tridentCloseFullScreen(__DRIcontextPrivate *driContextPriv)
+{
+    return GL_TRUE;
+}
+
+
+tridentScreenPtr tridentCreateScreen( __DRIscreenPrivate *sPriv )
+{
+   TRIDENTDRIPtr tDRIPriv = (TRIDENTDRIPtr)sPriv->pDevPriv;
+   tridentScreenPtr tridentScreen;
+   int i;
+
+#if 0
+   /* Check the DRI version */
+   {
+      int major, minor, patch;
+      if ( XF86DRIQueryVersion( sPriv->display, &major, &minor, &patch ) ) {
+         if ( major != 3 || minor != 1 || patch < 0 ) {
+	    __driUtilMessage( "r128 DRI driver expected DRI version 3.1.x but got version %d.%d.%d", major, minor, patch );
+            return GL_FALSE;
+         }
+      }
+   }
+
+   /* Check that the DDX driver version is compatible */
+   if ( sPriv->ddxMajor != 4 ||
+	sPriv->ddxMinor != 0 ||
+	sPriv->ddxPatch < 0 ) {
+      __driUtilMessage( "r128 DRI driver expected DDX driver version 4.0.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 != 2 ||
+	sPriv->drmMinor != 1 ||
+	sPriv->drmPatch < 0 ) {
+      __driUtilMessage( "r128 DRI driver expected DRM driver version 2.1.x but got version %d.%d.%d", sPriv->drmMajor, sPriv->drmMinor, sPriv->drmPatch );
+      return GL_FALSE;
+   }
+#endif
+
+    /* Allocate the private area */
+    tridentScreen = (tridentScreenPtr) CALLOC( sizeof(*tridentScreen) );
+    if ( !tridentScreen ) return NULL;
+
+   tridentScreen->driScreen = sPriv;
+
+   tridentScreen->frontOffset = tDRIPriv->frontOffset;
+   tridentScreen->backOffset = tDRIPriv->backOffset;
+   tridentScreen->depthOffset = tDRIPriv->depthOffset;
+   tridentScreen->frontPitch = tDRIPriv->frontPitch;
+   tridentScreen->backPitch = tDRIPriv->backPitch;
+   tridentScreen->depthPitch = tDRIPriv->depthPitch;
+   tridentScreen->width = tDRIPriv->width;
+   tridentScreen->height = tDRIPriv->height;
+
+printf("%d %d\n",tridentScreen->width,tridentScreen->height);
+printf("%d %d\n",tridentScreen->frontPitch,tridentScreen->backPitch);
+printf("offset 0x%x 0x%x\n",tridentScreen->backOffset,tridentScreen->depthOffset);
+
+   tridentScreen->mmio.handle = tDRIPriv->regs;
+   tridentScreen->mmio.size = 0x20000;
+    
+   if (drmMap(sPriv->fd,
+	 	tridentScreen->mmio.handle, tridentScreen->mmio.size,
+		(drmAddressPtr)&tridentScreen->mmio.map)) {
+	    FREE(tridentScreen);
+	    return GL_FALSE;
+    }
+printf("MAPPED at 0x%x\n",tridentScreen->mmio.map);
+
+   return tridentScreen;
+}
+
+/* Destroy the device specific screen private data struct.
+ */
+void tridentDestroyScreen( __DRIscreenPrivate *sPriv )
+{
+    tridentScreenPtr tridentScreen = (tridentScreenPtr)sPriv->private;
+
+    FREE(tridentScreen);
+}
+static GLboolean 
+tridentInitDriver(__DRIscreenPrivate *sPriv)
+{
+    sPriv->private = (void *) tridentCreateScreen( sPriv );
+
+    if (!sPriv->private) {
+	tridentDestroyScreen( sPriv );
+	return GL_FALSE;
+    }
+
+    return GL_TRUE;
+}
+
+static struct __DriverAPIRec tridentAPI = {
+   tridentInitDriver,
+   tridentDestroyScreen,
+   tridentCreateContext,
+   tridentDestroyContext,
+   tridentCreateBuffer,
+   tridentDestroyBuffer,
+   tridentSwapBuffers,
+   tridentMakeCurrent,
+   tridentUnbindContext,
+   tridentOpenFullScreen,
+   tridentCloseFullScreen
+};
+
+/*
+ * 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, &tridentAPI);
+   return (void *) psp;
+}
+
+void __driRegisterExtensions(void)
+{
+   /* No extensions */
+}
diff --git a/src/mesa/drivers/dri/trident/trident_context.h b/src/mesa/drivers/dri/trident/trident_context.h
new file mode 100644
index 0000000000..ee098e5e7d
--- /dev/null
+++ b/src/mesa/drivers/dri/trident/trident_context.h
@@ -0,0 +1,209 @@
+/*
+ * Copyright 2002 by Alan Hourihane, Sychdyn, North Wales, UK.
+ *
+ * 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 Alan Hourihane not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Alan Hourihane makes no representations
+ * about the suitability of this software for any purpose.  It is provided
+ * "as is" without express or implied warranty.
+ *
+ * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL ALAN HOURIHANE 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.
+ *
+ * Authors:  Alan Hourihane, <alanh@fairlite.demon.co.uk>
+ *
+ * Trident CyberBladeXP driver.
+ *
+ */
+#ifndef _TRIDENT_CONTEXT_H_
+#define _TRIDENT_CONTEXT_H_
+
+#include "compiler.h"
+#include "dri_util.h"
+#include "macros.h"
+#include "mtypes.h"
+#include "drm.h"
+#include "mm.h"
+
+#define SUBPIXEL_X (0.0F)
+#define SUBPIXEL_Y (0.125F)
+
+#define _TRIDENT_NEW_VERTEX (_NEW_TEXTURE |		\
+			   _DD_NEW_TRI_UNFILLED |	\
+			   _DD_NEW_TRI_LIGHT_TWOSIDE)
+
+#define TRIDENT_FALLBACK_TEXTURE	0x01
+#define TRIDENT_FALLBACK_DRAW_BUFFER	0x02
+
+#define TRIDENT_NEW_CLIP		0x01
+
+#define TRIDENT_UPLOAD_COMMAND_D	0x00000001
+#define TRIDENT_UPLOAD_CONTEXT		0x04000000
+#define TRIDENT_UPLOAD_CLIPRECTS	0x80000000
+
+#define TAG(x) trident##x
+#include "tnl_dd/t_dd_vertex.h"
+#undef TAG
+
+struct trident_context;
+typedef struct trident_context tridentContextRec;
+typedef struct trident_context *tridentContextPtr;
+
+typedef void (*trident_quad_func)( tridentContextPtr, 
+				 const tridentVertex *, 
+				 const tridentVertex *,
+				 const tridentVertex *,
+				 const tridentVertex * );
+typedef void (*trident_tri_func)( tridentContextPtr, 
+				const tridentVertex *, 
+				const tridentVertex *,
+				const tridentVertex * );
+typedef void (*trident_line_func)( tridentContextPtr, 
+				 const tridentVertex *, 
+				 const tridentVertex * );
+typedef void (*trident_point_func)( tridentContextPtr, 
+				  const tridentVertex * );
+
+typedef struct {
+   drmHandle handle;			/* Handle to the DRM region */
+   drmSize size;			/* Size of the DRM region */
+   unsigned char *map;			/* Mapping of the DRM region */
+} tridentRegionRec, *tridentRegionPtr;
+
+typedef struct {
+    __DRIscreenPrivate *driScreen; /* Back pointer to DRI screen */
+
+    drmBufMapPtr buffers;
+
+    unsigned int frontOffset;
+    unsigned int frontPitch;
+    unsigned int backOffset;
+    unsigned int backPitch;
+    unsigned int depthOffset;
+    unsigned int depthPitch;
+    unsigned int width;
+    unsigned int height;
+    unsigned int cpp;
+
+#if 0
+    unsigned int sarea_priv_offset;
+#endif
+
+    tridentRegionRec mmio;
+} tridentScreenRec, *tridentScreenPtr;
+
+struct trident_context {
+	GLcontext 		*glCtx;		/* Mesa context */
+
+	__DRIcontextPrivate	*driContext;
+	__DRIscreenPrivate	*driScreen;
+	__DRIdrawablePrivate	*driDrawable;
+
+	GLuint 			new_gl_state;
+	GLuint 			new_state;
+	GLuint 			dirty;
+
+#if 0
+  	drm_trident_sarea_t	*sarea; 
+#endif
+
+        /* Temporaries for translating away float colors:
+	 */
+        struct gl_client_array UbyteColor;
+        struct gl_client_array UbyteSecondaryColor;
+
+   	/* Mirrors of some DRI state
+    	 */
+   	Display *display;			/* X server display */
+
+	int lastStamp;		        /* mirror driDrawable->lastStamp */
+
+   	drmContext hHWContext;
+   	drmLock *driHwLock;
+   	int driFd;
+
+   	tridentScreenPtr tridentScreen;	/* Screen private DRI data */
+
+  	/* Visual, drawable, cliprect and scissor information
+    	 */
+   	GLenum DrawBuffer;
+   	GLint drawOffset, drawPitch;
+   	GLint drawX, drawY;             /* origin of drawable in draw buffer */
+   	GLint readOffset, readPitch;
+
+   	GLuint numClipRects;		/* Cliprects for the draw buffer */
+   	XF86DRIClipRectPtr pClipRects;
+
+   	GLint scissor;
+   	XF86DRIClipRectRec ScissorRect;	/* Current software scissor */
+
+   	GLuint Fallback;
+	GLuint RenderIndex;
+	GLuint SetupNewInputs;
+	GLuint SetupIndex;
+	GLfloat hw_viewport[16];
+	GLfloat	depth_scale;
+	GLuint vertex_format;
+	GLuint vertex_size;
+	GLuint vertex_stride_shift;
+	char *verts;
+
+	GLint tmu_source[2];
+
+	GLuint hw_primitive;
+	GLenum render_primitive;
+
+   	trident_point_func    draw_point;
+   	trident_line_func     draw_line;
+   	trident_tri_func      draw_tri;
+   	trident_quad_func     draw_quad;
+
+#if 0
+   	gammaTextureObjectPtr CurrentTexObj[2];
+   	struct gamma_texture_object_t TexObjList;
+   	struct gamma_texture_object_t SwappedOut; 
+	GLenum TexEnvImageFmt[2];
+
+	memHeap_t *texHeap;
+
+   	int lastSwap;
+   	int texAge;
+   	int ctxAge;
+   	int dirtyAge;
+        int lastStamp;
+#endif
+
+	/* Chip state */
+	
+	int	commandD;
+
+	/* Context State */
+	
+	int	ClearColor;
+};
+
+void tridentDDInitExtensions( GLcontext *ctx );
+void tridentDDInitDriverFuncs( GLcontext *ctx );
+void tridentDDInitSpanFuncs( GLcontext *ctx );
+void tridentDDInitState( tridentContextPtr tmesa );
+void tridentInitHW( tridentContextPtr tmesa );
+void tridentDDInitStateFuncs( GLcontext *ctx );
+void tridentDDInitTextureFuncs( GLcontext *ctx );
+void tridentDDInitTriFuncs( GLcontext *ctx );
+extern void tridentBuildVertices( GLcontext *ctx, 
+				GLuint start, 
+				GLuint count,
+				GLuint newinputs );
+
+#define TRIDENT_CONTEXT(ctx)		((tridentContextPtr)(ctx->DriverCtx))
+
+#endif /* _TRIDENT_CONTEXT_H_ */
diff --git a/src/mesa/drivers/dri/trident/trident_dd.c b/src/mesa/drivers/dri/trident/trident_dd.c
new file mode 100644
index 0000000000..2f79ffcf6a
--- /dev/null
+++ b/src/mesa/drivers/dri/trident/trident_dd.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2002 by Alan Hourihane, Sychdyn, North Wales, UK.
+ *
+ * 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 Alan Hourihane not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Alan Hourihane makes no representations
+ * about the suitability of this software for any purpose.  It is provided
+ * "as is" without express or implied warranty.
+ *
+ * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL ALAN HOURIHANE 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.
+ *
+ * Authors:  Alan Hourihane, <alanh@fairlite.demon.co.uk>
+ *
+ * Trident CyberBladeXP driver.
+ *
+ */
+#include "trident_context.h"
+#include "trident_lock.h"
+#if defined(USE_X86_ASM)
+#include "X86/common_x86_asm.h"
+#endif
+
+#include "swrast/swrast.h"
+#include "context.h"
+
+#define TRIDENT_DATE	"20020318"
+
+
+/* Return the width and height of the current color buffer.
+ */
+static void tridentDDGetBufferSize( GLframebuffer *framebuffer,
+				 GLuint *width, GLuint *height )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+
+   LOCK_HARDWARE(tmesa);
+   *width  = tmesa->driDrawable->w;
+   *height = tmesa->driDrawable->h;
+   UNLOCK_HARDWARE(tmesa);
+}
+
+
+/* Return various strings for glGetString().
+ */
+static const GLubyte *tridentDDGetString( GLcontext *ctx, GLenum name )
+{
+   static char buffer[128];
+
+   switch ( name ) {
+   case GL_VENDOR:
+      return (GLubyte *)"Alan Hourihane";
+
+   case GL_RENDERER:
+      sprintf( buffer, "Mesa DRI Trident " TRIDENT_DATE );
+
+      /* Append any CPU-specific information.
+       */
+#ifdef USE_X86_ASM
+      if ( _mesa_x86_cpu_features ) {
+	 strncat( buffer, " x86", 4 );
+      }
+#ifdef USE_MMX_ASM
+      if ( cpu_has_mmx ) {
+	 strncat( buffer, "/MMX", 4 );
+      }
+#endif
+#ifdef USE_3DNOW_ASM
+      if ( cpu_has_3dnow ) {
+	 strncat( buffer, "/3DNow!", 7 );
+      }
+#endif
+#ifdef USE_SSE_ASM
+      if ( cpu_has_xmm ) {
+	 strncat( buffer, "/SSE", 4 );
+      }
+#endif
+#endif
+      return (GLubyte *)buffer;
+
+   default:
+      return NULL;
+   }
+}
+
+/* Enable the extensions supported by this driver.
+ */
+void tridentDDInitExtensions( GLcontext *ctx )
+{
+   /* None... */
+}
+
+/* Initialize the driver's misc functions.
+ */
+void tridentDDInitDriverFuncs( GLcontext *ctx )
+{
+   ctx->Driver.GetBufferSize		= tridentDDGetBufferSize;
+   ctx->Driver.GetString		= tridentDDGetString;
+
+   ctx->Driver.Error			= NULL;
+
+   /* Pixel path fallbacks
+    */
+   ctx->Driver.Accum                    = _swrast_Accum;
+   ctx->Driver.Bitmap                   = _swrast_Bitmap;
+   ctx->Driver.CopyPixels               = _swrast_CopyPixels;
+   ctx->Driver.DrawPixels               = _swrast_DrawPixels;
+   ctx->Driver.ReadPixels               = _swrast_ReadPixels;
+   ctx->Driver.ResizeBuffers            = _swrast_alloc_buffers;
+
+   /* Swrast hooks for imaging extensions:
+    */
+   ctx->Driver.CopyColorTable		= _swrast_CopyColorTable;
+   ctx->Driver.CopyColorSubTable	= _swrast_CopyColorSubTable;
+   ctx->Driver.CopyConvolutionFilter1D	= _swrast_CopyConvolutionFilter1D;
+   ctx->Driver.CopyConvolutionFilter2D	= _swrast_CopyConvolutionFilter2D;
+}
diff --git a/src/mesa/drivers/dri/trident/trident_state.c b/src/mesa/drivers/dri/trident/trident_state.c
new file mode 100644
index 0000000000..49318824f5
--- /dev/null
+++ b/src/mesa/drivers/dri/trident/trident_state.c
@@ -0,0 +1,552 @@
+/*
+ * Copyright 2002 by Alan Hourihane, Sychdyn, North Wales, UK.
+ *
+ * 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 Alan Hourihane not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Alan Hourihane makes no representations
+ * about the suitability of this software for any purpose.  It is provided
+ * "as is" without express or implied warranty.
+ *
+ * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL ALAN HOURIHANE 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.
+ *
+ * Authors:  Alan Hourihane, <alanh@fairlite.demon.co.uk>
+ *
+ * Trident CyberBladeXP driver.
+ *
+ */
+#include "trident_context.h"
+#include "trident_lock.h"
+#include "swrast/swrast.h"
+
+#define TRIDENTPACKCOLOR332(r, g, b)					\
+   (((r) & 0xe0) | (((g) & 0xe0) >> 3) | (((b) & 0xc0) >> 6))
+
+#define TRIDENTPACKCOLOR1555(r, g, b, a)					\
+   ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) |	\
+    ((a) ? 0x8000 : 0))
+
+#define TRIDENTPACKCOLOR565(r, g, b)					\
+   ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
+
+#define TRIDENTPACKCOLOR888(r, g, b)					\
+   (((r) << 16) | ((g) << 8) | (b))
+
+#define TRIDENTPACKCOLOR8888(r, g, b, a)					\
+   (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
+
+#define TRIDENTPACKCOLOR4444(r, g, b, a)					\
+   ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
+
+static __inline__ GLuint tridentPackColor( GLuint cpp,
+					  GLubyte r, GLubyte g,
+					  GLubyte b, GLubyte a )
+{
+   switch ( cpp ) {
+   case 2:
+      return TRIDENTPACKCOLOR565( r, g, b );
+   case 4:
+      return TRIDENTPACKCOLOR8888( r, g, b, a );
+   default:
+      return 0;
+   }
+}
+
+void tridentUploadHwStateLocked( tridentContextPtr tmesa )
+{
+   unsigned char *MMIO = tmesa->tridentScreen->mmio.map;
+#if 0
+   ATISAREAPrivPtr sarea = tmesa->sarea;
+   trident_context_regs_t *regs = &(sarea->ContextState);
+#endif
+
+   if ( tmesa->dirty & TRIDENT_UPLOAD_COMMAND_D ) {
+      MMIO_OUT32(MMIO, 0x00281C, tmesa->commandD );
+      tmesa->dirty &= ~TRIDENT_UPLOAD_COMMAND_D;
+   }
+
+   if ( tmesa->dirty & TRIDENT_UPLOAD_CLIPRECTS ) {
+      /* XXX FIX ME ! */
+      MMIO_OUT32(MMIO, 0x002C80 , 0x20008000 | tmesa->tridentScreen->height );    
+      MMIO_OUT32(MMIO, 0x002C84 , 0x20000000 | tmesa->tridentScreen->width );    
+      tmesa->dirty &= ~TRIDENT_UPLOAD_CLIPRECTS;
+   }
+
+   tmesa->dirty = 0;
+}
+
+/* Copy the back color buffer to the front color buffer.
+ */
+void tridentCopyBuffer( const __DRIdrawablePrivate *dPriv )
+{
+   unsigned char *MMIO;
+   tridentContextPtr tmesa;
+   GLint nbox, i, ret;
+   int busy;
+   XF86DRIClipRectPtr pbox;
+
+   assert(dPriv);
+   assert(dPriv->driContextPriv);
+   assert(dPriv->driContextPriv->driverPrivate);
+
+   tmesa = (tridentContextPtr) dPriv->driContextPriv->driverPrivate;
+   MMIO = tmesa->tridentScreen->mmio.map;
+
+   LOCK_HARDWARE( tmesa );
+
+   /* use front buffer cliprects */
+   nbox = dPriv->numClipRects;
+   pbox = dPriv->pClipRects;
+
+   for ( i = 0 ; i < nbox ; i++ ) {
+#if 0
+      GLint nr = MIN2( i + MACH64_NR_SAREA_CLIPRECTS , nbox );
+      XF86DRIClipRectPtr b = tmesa->sarea->boxes;
+      GLint n = 0;
+
+      for ( ; i < nr ; i++ ) {
+	 *b++ = pbox[i];
+	 n++;
+      }
+      tmesa->sarea->nbox = n;
+#endif
+
+    MMIO_OUT32(MMIO, 0x2150, tmesa->tridentScreen->frontPitch << 20 | tmesa->tridentScreen->frontOffset>>4);
+    MMIO_OUT32(MMIO, 0x2154, tmesa->tridentScreen->backPitch << 20 | tmesa->tridentScreen->backOffset>>4);
+    MMIO_OUT8(MMIO, 0x2127, 0xCC); /* Copy Rop */
+    MMIO_OUT32(MMIO, 0x2128, 0x4); /* scr2scr */
+    MMIO_OUT32(MMIO, 0x2138, (pbox->x1 << 16) | pbox->y1);
+    MMIO_OUT32(MMIO, 0x213C, (pbox->x1 << 16) | pbox->y1);
+    MMIO_OUT32(MMIO, 0x2140, (pbox->x2 - pbox->x1) << 16 | (pbox->y2 - pbox->y1) );
+    MMIO_OUT8(MMIO, 0x2124, 0x01); /* BLT */
+#define GE_BUSY 0x80
+    for (;;) {
+	busy = MMIO_IN8(MMIO, 0x2120);
+	if ( !(busy & GE_BUSY) )
+		break;
+    }
+   }
+
+   UNLOCK_HARDWARE( tmesa );
+
+#if 0
+   tmesa->dirty |= (MACH64_UPLOAD_CONTEXT |
+		    MACH64_UPLOAD_MISC |
+		    MACH64_UPLOAD_CLIPRECTS);
+#endif
+}
+
+
+static void tridentDDClear( GLcontext *ctx, GLbitfield mask, GLboolean all,
+			       GLint cx, GLint cy, GLint cw, GLint ch )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+   unsigned char *MMIO = tmesa->tridentScreen->mmio.map;
+   __DRIdrawablePrivate *dPriv = tmesa->driDrawable;
+   int busy;
+   GLuint flags = 0;
+   GLint i;
+   GLint ret;
+
+#define DRM_TRIDENT_FRONT	0x01
+#define DRM_TRIDENT_BACK	0x02
+#define DRM_TRIDENT_DEPTH	0x04
+
+   if ( tmesa->new_state )
+      tridentDDUpdateHWState( ctx );
+
+   if ( mask & DD_FRONT_LEFT_BIT ) {
+      flags |= DRM_TRIDENT_FRONT;
+      mask &= ~DD_FRONT_LEFT_BIT;
+   }
+
+   if ( mask & DD_BACK_LEFT_BIT ) {
+      flags |= DRM_TRIDENT_BACK;
+      mask &= ~DD_BACK_LEFT_BIT;
+   }
+
+   if ( ( mask & DD_DEPTH_BIT ) && ctx->Depth.Mask ) {
+      flags |= DRM_TRIDENT_DEPTH;
+      mask &= ~DD_DEPTH_BIT;
+   }
+
+   LOCK_HARDWARE(tmesa);
+
+   if ( flags ) {
+   
+      cx += tmesa->drawX;
+      cy += tmesa->drawY;
+   
+      /* HACK!!!
+       */
+      if ( tmesa->dirty & ~TRIDENT_UPLOAD_CLIPRECTS ) {
+         tridentUploadHwStateLocked( tmesa );
+      }
+   
+      for ( i = 0 ; i < tmesa->numClipRects ; i++ ) {
+#if 0
+         int nr = MIN2( i + TRIDENT_NR_SAREA_CLIPRECTS, tmesa->numClipRects );
+         XF86DRIClipRectPtr box = tmesa->pClipRects;
+         XF86DRIClipRectPtr b = tmesa->sarea->boxes;
+         GLint n = 0;
+   
+         if ( !all ) {
+	    for ( ; i < nr ; i++ ) {
+	       GLint x = box[i].x1;
+	       GLint y = box[i].y1;
+	       GLint w = box[i].x2 - x;
+	       GLint h = box[i].y2 - y;
+	       
+	       if ( x < cx ) w -= cx - x, x = cx;
+	       if ( y < cy ) h -= cy - y, y = cy;
+	       if ( x + w > cx + cw ) w = cx + cw - x;
+	       if ( y + h > cy + ch ) h = cy + ch - y;
+	       if ( w <= 0 ) continue;
+	       if ( h <= 0 ) continue;
+	       
+	       b->x1 = x;
+	       b->y1 = y;
+	       b->x2 = x + w;
+	       b->y2 = y + h;
+	       b++;
+	       n++;
+	    }
+         } else {
+	    for ( ; i < nr ; i++ ) {
+	       *b++ = box[i];
+	       n++;
+	    }
+         }
+   
+         tmesa->sarea->nbox = n;
+#endif
+   
+if (flags & DRM_TRIDENT_BACK) {
+    MMIO_OUT32(MMIO, 0x2150, tmesa->tridentScreen->backPitch << 20 | tmesa->tridentScreen->backOffset>>4);
+         MMIO_OUT8(MMIO, 0x2127, 0xF0); /* Pat Rop */
+         MMIO_OUT32(MMIO, 0x2158, tmesa->ClearColor);
+         MMIO_OUT32(MMIO, 0x2128, 0x4000); /* solidfill */
+         MMIO_OUT32(MMIO, 0x2138, cx << 16 | cy);
+         MMIO_OUT32(MMIO, 0x2140, cw << 16 | ch);
+         MMIO_OUT8(MMIO, 0x2124, 0x01); /* BLT */
+#define GE_BUSY 0x80
+	 for (;;) {
+		busy = MMIO_IN8(MMIO, 0x2120);
+		if ( !(busy & GE_BUSY) )
+			break;
+	 }
+}
+if (flags & DRM_TRIDENT_DEPTH) {
+    MMIO_OUT32(MMIO, 0x2150, tmesa->tridentScreen->depthPitch << 20 | tmesa->tridentScreen->depthOffset>>4);
+         MMIO_OUT8(MMIO, 0x2127, 0xF0); /* Pat Rop */
+         MMIO_OUT32(MMIO, 0x2158, tmesa->ClearColor);
+         MMIO_OUT32(MMIO, 0x2128, 0x4000); /* solidfill */
+         MMIO_OUT32(MMIO, 0x2138, cx << 16 | cy);
+         MMIO_OUT32(MMIO, 0x2140, cw << 16 | ch);
+         MMIO_OUT8(MMIO, 0x2124, 0x01); /* BLT */
+#define GE_BUSY 0x80
+	 for (;;) {
+		busy = MMIO_IN8(MMIO, 0x2120);
+		if ( !(busy & GE_BUSY) )
+			break;
+	 }
+}
+    MMIO_OUT32(MMIO, 0x2150, tmesa->tridentScreen->frontPitch << 20 | tmesa->tridentScreen->frontOffset>>4);
+if (flags & DRM_TRIDENT_FRONT) {
+         MMIO_OUT8(MMIO, 0x2127, 0xF0); /* Pat Rop */
+         MMIO_OUT32(MMIO, 0x2158, tmesa->ClearColor);
+         MMIO_OUT32(MMIO, 0x2128, 0x4000); /* solidfill */
+         MMIO_OUT32(MMIO, 0x2138, cx << 16 | cy);
+         MMIO_OUT32(MMIO, 0x2140, cw << 16 | ch);
+         MMIO_OUT8(MMIO, 0x2124, 0x01); /* BLT */
+#define GE_BUSY 0x80
+	 for (;;) {
+		busy = MMIO_IN8(MMIO, 0x2120);
+		if ( !(busy & GE_BUSY) )
+			break;
+	 }
+}
+   
+      }
+   
+#if 0
+      tmesa->dirty |= (TRIDENT_UPLOAD_CONTEXT |
+   		       TRIDENT_UPLOAD_MISC |
+   		       TRIDENT_UPLOAD_CLIPRECTS);
+#endif
+   }
+
+   UNLOCK_HARDWARE(tmesa);
+
+   if ( mask )
+      _swrast_Clear( ctx, mask, all, cx, cy, cw, ch );
+}
+
+static void tridentDDShadeModel( GLcontext *ctx, GLenum mode )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+   GLuint s = tmesa->commandD;
+
+#define TRIDENT_FLAT_SHADE 			0x000000E0
+#define TRIDENT_FLAT_SHADE_VERTEX_C		0x00000060
+#define TRIDENT_FLAT_SHADE_GOURAUD		0x00000080
+
+   s &= ~TRIDENT_FLAT_SHADE;
+
+   switch ( mode ) {
+   case GL_FLAT:
+      s |= TRIDENT_FLAT_SHADE_VERTEX_C;
+      break;
+   case GL_SMOOTH:
+      s |= TRIDENT_FLAT_SHADE_GOURAUD;
+      break;
+   default:
+      return;
+   }
+
+   if ( tmesa->commandD != s ) {
+      tmesa->commandD = s;
+
+      tmesa->dirty |= TRIDENT_UPLOAD_COMMAND_D;
+   }
+}
+
+void tridentCalcViewport( GLcontext *ctx )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+   const GLfloat *v = ctx->Viewport._WindowMap.m;
+   GLfloat *m = tmesa->hw_viewport;
+
+   /* See also trident_translate_vertex.
+    */
+   m[MAT_SX] =   v[MAT_SX];
+   m[MAT_TX] =   v[MAT_TX] + tmesa->drawX + SUBPIXEL_X;
+   m[MAT_SY] = - v[MAT_SY];
+   m[MAT_TY] = - v[MAT_TY] + tmesa->driDrawable->h + tmesa->drawY + SUBPIXEL_Y;
+#if 0
+   m[MAT_SZ] =   v[MAT_SZ] * tmesa->depth_scale;
+   m[MAT_TZ] =   v[MAT_TZ] * tmesa->depth_scale;
+#else
+   m[MAT_SZ] =   v[MAT_SZ];
+   m[MAT_TZ] =   v[MAT_TZ];
+#endif
+
+   tmesa->SetupNewInputs = ~0;
+}
+
+static void tridentDDViewport( GLcontext *ctx,
+			  GLint x, GLint y,
+			  GLsizei width, GLsizei height )
+{
+   tridentCalcViewport( ctx );
+}
+
+static void tridentDDDepthRange( GLcontext *ctx,
+			    GLclampd nearval, GLclampd farval )
+{
+   tridentCalcViewport( ctx );
+}
+
+void tridentSetCliprects( tridentContextPtr tmesa, GLenum mode )
+{
+   __DRIdrawablePrivate *dPriv = tmesa->driDrawable;
+
+   switch ( mode ) {
+   case GL_FRONT_LEFT:
+      if (dPriv->numClipRects == 0) {
+	 static XF86DRIClipRectRec zeroareacliprect = {0,0,0,0};
+	 tmesa->numClipRects = 1;
+	 tmesa->pClipRects = &zeroareacliprect;
+      } else {
+	 tmesa->numClipRects = dPriv->numClipRects;
+	 tmesa->pClipRects = (XF86DRIClipRectPtr)dPriv->pClipRects;
+      }
+      tmesa->drawX = dPriv->x;
+      tmesa->drawY = dPriv->y;
+      break;
+   case GL_BACK_LEFT:
+      if ( dPriv->numBackClipRects == 0 ) {
+	  if (dPriv->numClipRects == 0) {
+	     static XF86DRIClipRectRec zeroareacliprect = {0,0,0,0};
+	     tmesa->numClipRects = 1;
+	     tmesa->pClipRects = &zeroareacliprect;
+	  } else {
+	     tmesa->numClipRects = dPriv->numClipRects;
+	     tmesa->pClipRects = (XF86DRIClipRectPtr)dPriv->pClipRects;
+	     tmesa->drawX = dPriv->x;
+	     tmesa->drawY = dPriv->y;
+	  }
+      }
+      else {
+	 tmesa->numClipRects = dPriv->numBackClipRects;
+	 tmesa->pClipRects = (XF86DRIClipRectPtr)dPriv->pBackClipRects;
+	 tmesa->drawX = dPriv->backX;
+	 tmesa->drawY = dPriv->backY;
+      }
+      break;
+   default:
+      return;
+   }
+
+#if 0
+   tmesa->dirty |= TRIDENT_UPLOAD_CLIPRECTS;
+#endif
+}
+
+static GLboolean tridentDDSetDrawBuffer( GLcontext *ctx, GLenum mode )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+   int found = GL_TRUE;
+
+   if ( tmesa->DrawBuffer != mode ) {
+      tmesa->DrawBuffer = mode;
+      
+      switch ( mode ) {
+      case GL_FRONT_LEFT:
+	 tridentFallback( tmesa, TRIDENT_FALLBACK_DRAW_BUFFER, GL_FALSE );
+	 tmesa->drawOffset = tmesa->tridentScreen->frontOffset;
+	 tmesa->drawPitch  = tmesa->tridentScreen->frontPitch;
+	 tridentSetCliprects( tmesa, GL_FRONT_LEFT );
+	 break;
+      case GL_BACK_LEFT:
+	 tridentFallback( tmesa, TRIDENT_FALLBACK_DRAW_BUFFER, GL_FALSE );
+	 tmesa->drawOffset = tmesa->tridentScreen->backOffset;
+	 tmesa->drawPitch  = tmesa->tridentScreen->backPitch;
+	 tridentSetCliprects( tmesa, GL_BACK_LEFT );
+	 break;
+      default:
+	 tridentFallback( tmesa, TRIDENT_FALLBACK_DRAW_BUFFER, GL_TRUE );
+	 found = GL_FALSE;
+	 break;
+      }
+
+#if 0
+      tmesa->setup.dst_off_pitch = (((tmesa->drawPitch/8) << 22) |
+				    (tmesa->drawOffset >> 3));
+
+      tmesa->dirty |= MACH64_UPLOAD_DST_OFF_PITCH | MACH64_UPLOAD_CONTEXT;
+#endif
+      
+   }
+
+   return found;
+}
+
+static void tridentDDClearColor( GLcontext *ctx,
+				const GLchan color[4] )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+
+   tmesa->ClearColor = tridentPackColor( tmesa->tridentScreen->cpp,
+					color[0], color[1], 
+					color[2], color[3] );
+}
+
+
+void tridentDDUpdateState( GLcontext *ctx, GLuint new_state )
+{
+   _swrast_InvalidateState( ctx, new_state );
+   _swsetup_InvalidateState( ctx, new_state );
+   _ac_InvalidateState( ctx, new_state );
+   _tnl_InvalidateState( ctx, new_state );
+   TRIDENT_CONTEXT(ctx)->new_gl_state |= new_state;
+}
+
+
+/* Initialize the context's hardware state.
+ */
+void tridentDDInitState( tridentContextPtr tmesa )
+{
+   tmesa->new_state = 0;
+
+   switch ( tmesa->glCtx->Visual.depthBits ) {
+   case 16:
+      tmesa->depth_scale = 1.0 / (GLfloat)0xffff;
+      break;
+   case 24:
+      tmesa->depth_scale = 1.0 / (GLfloat)0xffffff;
+      break;
+   }
+}
+
+void tridentDDUpdateHWState( GLcontext *ctx )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+   int new_state = tmesa->new_state;
+
+   if ( new_state )
+   {
+      tmesa->new_state = 0;
+
+#if 0
+      /* Update the various parts of the context's state.
+       */
+      if ( new_state & GAMMA_NEW_ALPHA )
+	 tridentUpdateAlphaMode( ctx );
+
+      if ( new_state & GAMMA_NEW_DEPTH )
+	 tridentUpdateZMode( ctx );
+
+      if ( new_state & GAMMA_NEW_FOG )
+	 gammaUpdateFogAttrib( ctx );
+
+      if ( new_state & GAMMA_NEW_CLIP )
+	 gammaUpdateClipping( ctx );
+
+      if ( new_state & GAMMA_NEW_POLYGON )
+	 gammaUpdatePolygon( ctx );
+
+      if ( new_state & GAMMA_NEW_CULL )
+	 gammaUpdateCull( ctx );
+
+      if ( new_state & GAMMA_NEW_MASKS )
+	 gammaUpdateMasks( ctx );
+
+      if ( new_state & GAMMA_NEW_STIPPLE )
+	 gammaUpdateStipple( ctx );
+#endif
+   }
+
+   /* HACK ! */
+
+#if 0
+   gammaEmitHwState( tmesa );
+#endif
+}
+
+/* Initialize the driver's state functions.
+ */
+void tridentDDInitStateFuncs( GLcontext *ctx )
+{
+   ctx->Driver.UpdateState		= tridentDDUpdateState;
+
+   ctx->Driver.Clear			= tridentDDClear;
+   ctx->Driver.DepthRange		= tridentDDDepthRange;
+   ctx->Driver.ShadeModel		= tridentDDShadeModel;
+   ctx->Driver.Viewport			= tridentDDViewport;
+
+   /* Pixel path fallbacks.
+    */
+   ctx->Driver.Accum = _swrast_Accum;
+   ctx->Driver.Bitmap = _swrast_Bitmap;
+   ctx->Driver.CopyPixels = _swrast_CopyPixels;
+   ctx->Driver.DrawPixels = _swrast_DrawPixels;
+   ctx->Driver.ReadPixels = _swrast_ReadPixels;
+   ctx->Driver.ResizeBuffers = _swrast_alloc_buffers;
+
+   /* Swrast hooks for imaging extensions:
+    */
+   ctx->Driver.CopyColorTable = _swrast_CopyColorTable;
+   ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable;
+   ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D;
+   ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D;
+}
diff --git a/src/mesa/drivers/dri/trident/trident_tris.c b/src/mesa/drivers/dri/trident/trident_tris.c
new file mode 100644
index 0000000000..890e34ed91
--- /dev/null
+++ b/src/mesa/drivers/dri/trident/trident_tris.c
@@ -0,0 +1,1112 @@
+/*
+ * Copyright 2002 by Alan Hourihane, Sychdyn, North Wales, UK.
+ *
+ * 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 Alan Hourihane not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Alan Hourihane makes no representations
+ * about the suitability of this software for any purpose.  It is provided
+ * "as is" without express or implied warranty.
+ *
+ * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL ALAN HOURIHANE 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.
+ *
+ * Authors:  Alan Hourihane, <alanh@fairlite.demon.co.uk>
+ *
+ * Trident CyberBladeXP driver.
+ *
+ */
+
+#include "trident_context.h"
+#include "trident_lock.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+#include "swrast/swrast.h"
+
+static int first = 1;
+
+typedef struct reg {
+	int addr;
+	int data;
+} RegData;
+
+RegData initRegData[]={
+    {0x2804,  0x19980824},
+    {0x2F70,  0x46455858},
+    {0x2F74,    0x41584998},
+    {0x2F00,    0x00000000},
+    {0x2F04,    0x80000800},
+    {0x2F08,    0x00550200},
+    {0x2F40,    0x00000001},
+    {0x2F40,    0x00000001},
+    {0x2F44,    0x00830097},
+    {0x2F48,    0x0087009F},
+    {0x2F4C,    0x00BF0003},
+    {0x2F50,    0xF00B6C1B},
+    {0x2C04,    0x00000000},
+    {0x2D00,    0x00000080},
+    {0x2D00,    0x00000000},
+    {0x2DD4,    0x00100000},
+    {0x2DD4,    0x00100010},
+    {0x2DD8,    0x00100000},
+    {0x2DD8,    0x00100010},
+    {0x2C88,    0xFFFFFFFF},
+    {0x2C94 ,   0xFFFFFFFF},
+    {0x281C,    0x00008000},
+    {0x2C80,    0x00000000},
+    {0x2C80,    0x00000000},
+    {0x2C80 ,   0x00008000},
+    {0x2C00  ,  0x00000000},
+    {0x2C04  ,  0x00000000},
+    {0x2C08  ,  0x00000000},
+    {0x2C0C  ,  0x00000000},
+    {0x2C10  ,  0x00000000},
+    {0x2C14  ,  0x00000000},
+    {0x2C18  ,  0x00000000},
+    {0x2C1C  ,  0x00000000},
+    {0x2C20  ,  0x00000000},
+    {0x2C24  ,  0x00000000},
+    {0x2C2C  ,  0x00000000},
+    {0x2C30  ,  0x00000000},
+    {0x2C34  ,  0x00000000},
+    {0x2C38  ,  0x00000000},
+    {0x2C3C  ,  0x00000000},
+    {0x2C40  ,  0x00000000},
+    {0x2C44  ,  0x00000000},
+    {0x2C48  ,  0x00000000},
+    {0x2C4C  ,  0x00000000},
+    {0x2C50  ,  0x00000000},
+    {0x2C54  ,  0x00000000},
+    {0x2C58  ,  0x00000000},
+    {0x2C5C  ,  0x00000000},
+    {0x2C60  ,  0x00000000},
+    {0x2C64  ,  0x00000000},
+    {0x2C68  ,  0x00000000},
+    {0x2C6C  ,  0x00000000},
+    {0x2C70  ,  0x00000000},
+    {0x2C74  ,  0x00000000},
+    {0x2C78  ,  0x00000000},
+    {0x2C7C  ,  0x00000000},
+    {0x2C80  ,  0x00008000},
+    {0x2C84  ,  0x00000000},
+    {0x2C88  ,  0xFFFFFFFF},
+    {0x2C8C  ,  0x00000000},
+    {0x2C90  ,  0x00000000},
+    {0x2C94  ,  0xFFFFFFFF},
+    {0x2C98  ,  0x00000000},
+    {0x2C9C  ,  0x00000000},
+    {0x2CA0  ,  0x00000000},
+    {0x2CA4   , 0x00000000},
+    {0x2CA8   , 0x00000000},
+    {0x2CAC  ,  0x00000000},
+    {0x2CB0  ,  0x00000000},
+    {0x2CB4  ,  0x00000000},
+    {0x2CB8  ,  0x00000000},
+    {0x2CBC  ,  0x00000000},
+    {0x2CC0  ,  0x00000000},
+    {0x2CC4  ,  0x00000000},
+    {0x2CC8  ,  0x00000000},
+    {0x2CCC  ,  0x00000000},
+    {0x2CD0  ,  0x00000000},
+    {0x2CD4  ,  0x00000000},
+    {0x2CD8  ,  0x00000000},
+    {0x2CDC  ,  0x00000000},
+    {0x2CE0  ,  0x00000000},
+    {0x2CE4  ,  0x00000000},
+    {0x2CE8  ,  0x00000000},
+    {0x2CEC  ,  0x00000000},
+    {0x2CF0  ,  0x00000000},
+    {0x2CF4  ,  0x00000000},
+    {0x2CF8  ,  0x00000000},
+    {0x2CFC  ,  0x00000000},
+    {0x2D00  ,  0x00000000},
+    {0x2D04  ,  0x00000000},
+    {0x2D08  ,  0x00000000},
+    {0x2D0C  ,  0x00000000},
+    {0x2D10  ,  0x00000000},
+    {0x2D14  ,  0x00000000},
+    {0x2D18  ,  0x00000000},
+    {0x2D1C  ,  0x00000000},
+    {0x2D20  ,  0x00000000},
+    {0x2D24  ,  0x00000000},
+    {0x2D28  ,  0x00000000},
+    {0x2D2C  ,  0x00000000},
+    {0x2D30  ,  0x00000000},
+    {0x2D34  ,  0x00000000},
+    {0x2D38   , 0x00000000},
+    {0x2D3C   , 0x00000000},
+    {0x2D40   , 0x00000000},
+    {0x2D44   , 0x00000000},
+    {0x2D48   , 0x00000000},
+    {0x2D4C   , 0x00000000},
+    {0x2D50   , 0x00000000},
+    {0x2D54  ,  0x00000000},
+    {0x2D58  ,  0x00000000},
+    {0x2D5C  ,  0x00000000},
+    {0x2D60  ,  0x00000000},
+    {0x2D64  ,  0x00000000},
+    {0x2D68  ,  0x00000000},
+    {0x2D6C  ,  0x00000000},
+    {0x2D70   , 0x00000000},
+    {0x2D74   , 0x00000000},
+    {0x2D78   , 0x00000000},
+    {0x2D7C   , 0x00000000},
+    {0x2D80   , 0x00000000},
+    {0x2D84   , 0x00000000},
+    {0x2D88   , 0x00000000},
+    {0x2D8C   , 0x00000000},
+    {0x2D90   , 0x00000000},
+    {0x2D94   , 0x00000000},
+    {0x2D98   , 0x00000000},
+    {0x2D9C   , 0x00000000},
+    {0x2DA0   , 0x00000000},
+    {0x2DA4   , 0x00000000},
+    {0x2DA8   , 0x00000000},
+    {0x2DAC   , 0x00000000},
+    {0x2DB0   , 0x00000000},
+    {0x2DB4   , 0x00000000},
+    {0x2DB8   , 0x00000000},
+    {0x2DBC   , 0x00000000},
+    {0x2DC0   , 0x00000000},
+    {0x2DC4   , 0x00000000},
+    {0x2DC8   , 0x00000000},
+    {0x2DCC   , 0x00000000},
+    {0x2DD0   , 0x00000000},
+    {0x2DD4   , 0x00100010},
+    {0x2DD8   , 0x00100010},
+    {0x2DDC   , 0x00000000},
+    {0x2DE0   , 0x00000000},
+    {0x2DE4   , 0x00000000},
+    {0x2DE8   , 0x00000000},
+    {0x2DEC   , 0x00000000},
+    {0x2DF0   , 0x00000000},
+    {0x2DF4   , 0x00000000},
+    {0x2DF8   , 0x00000000},
+    {0x2DFC   , 0x00000000},
+    {0x2E00   , 0x00000000},
+    {0x2E04   , 0x00000000},
+    {0x2E08   , 0x00000000},
+    {0x2E0C   , 0x00000000},
+    {0x2E10   , 0x00000000},
+    {0x2E14   , 0x00000000},
+    {0x2E18   , 0x00000000},
+    {0x2E1C   , 0x00000000},
+    {0x2E20   , 0x00000000},
+    {0x2E24   , 0x00000000},
+    {0x2E28   , 0x00000000},
+    {0x2E2C   , 0x00000000},
+    {0x2E30   , 0x00000000},
+    {0x2E34   , 0x00000000},
+    {0x2E38   , 0x00000000},
+    {0x2E3C   , 0x00000000},
+    {0x2E40   , 0x00000000},
+    {0x2E44   , 0x00000000},
+    {0x2E48   , 0x00000000},
+    {0x2E4C   , 0x00000000},
+    {0x2E50   , 0x00000000},
+    {0x2E54   , 0x00000000},
+    {0x2E58   , 0x00000000},
+    {0x2E5C   , 0x00000000},
+    {0x2E60   , 0x00000000},
+    {0x2E64   , 0x00000000},
+    {0x2E68   , 0x00000000},
+    {0x2E6C   , 0x00000000},
+    {0x2E70   , 0x00000000},
+    {0x2E74   , 0x00000000},
+    {0x2E78   , 0x00000000},
+    {0x2E7C   , 0x00000000},
+    {0x2E80   , 0x00000000},
+    {0x2E84   , 0x00000000},
+    {0x2E88   , 0x00000000},
+    {0x2E8C   , 0x00000000},
+    {0x2E90   , 0x00000000},
+    {0x2E94   , 0x00000000},
+    {0x2E98   , 0x00000000},
+    {0x2E9C   , 0x00000000},
+    {0x2EA0   , 0x00000000},
+    {0x2EA4   , 0x00000000},
+    {0x2EA8   , 0x00000000},
+    {0x2EAC   , 0x00000000},
+    {0x2EB0   , 0x00000000},
+    {0x2EB4   , 0x00000000},
+    {0x2EB8   , 0x00000000},
+    {0x2EBC   , 0x00000000},
+    {0x2EC0   , 0x00000000},
+    {0x2EC4   , 0x00000000},
+    {0x2EC8   , 0x00000000},
+    {0x2ECC   , 0x00000000},
+    {0x2ED0   , 0x00000000},
+    {0x2ED4   , 0x00000000},
+    {0x2ED8   , 0x00000000},
+    {0x2EDC   , 0x00000000},
+    {0x2EE0   , 0x00000000},
+    {0x2EE4    ,0x00000000},
+    {0x2EE8    ,0x00000000},
+    {0x2EEC   , 0x00000000},
+    {0x2EF0   , 0x00000000},
+    {0x2EF4   , 0x00000000},
+    {0x2EF8   , 0x00000000},
+    {0x2EFC   , 0x00000000},
+    /*{0x2F60   , 0x00000000},*/
+};
+
+int initRegDataNum=sizeof(initRegData)/sizeof(RegData);
+
+typedef union {
+    unsigned int i;
+    float        f;
+} dmaBufRec, *dmaBuf;
+
+void Init3D( tridentContextPtr tmesa )
+{
+   unsigned char *MMIO = tmesa->tridentScreen->mmio.map;
+    int i;
+
+    for(i=0;i<initRegDataNum;++i)
+       MMIO_OUT32(MMIO, initRegData[i].addr, initRegData[i].data);
+}
+
+int DrawTriangle( tridentContextPtr tmesa)
+{
+   volatile unsigned char *MMIO = tmesa->tridentScreen->mmio.map;
+   dmaBufRec clr;
+
+printf("DRAW TRI\n");
+	Init3D(tmesa);
+
+printf("ENGINE STATUS 0x%x\n",MMIO_IN32(MMIO, 0x2800));
+    MMIO_OUT32(MMIO,  0x002800, 0x00000000 );
+#if 0
+    MMIO_OUT32(MMIO,  0x002368 , MMIO_IN32(MMIO,0x002368)|1 );
+#endif
+
+    MMIO_OUT32(MMIO, 0x002C00 , 0x00000014 );
+#if 0
+    MMIO_OUT32(MMIO, 0x002C04 , 0x0A8004C0 );
+#else
+    MMIO_OUT32(MMIO, 0x002C04 , 0x0A8000C0 );
+#endif
+
+#if 0
+    MMIO_OUT32(MMIO, 0x002C08 , 0x00000000 );
+    MMIO_OUT32(MMIO, 0x002C0C , 0xFFCCCCCC );
+    MMIO_OUT32(MMIO, 0x002C10 , 0x3F800000 );
+    MMIO_OUT32(MMIO, 0x002C14 , 0x3D0D3DCB );
+    MMIO_OUT32(MMIO, 0x002C2C , 0x70000000 );
+    MMIO_OUT32(MMIO, 0x002C24 , 0x00202C00 );
+    MMIO_OUT32(MMIO, 0x002C28 , 0xE0002500 );
+    MMIO_OUT32(MMIO, 0x002C30 , 0x00000000 );
+    MMIO_OUT32(MMIO, 0x002C34 , 0xE0000000 );
+    MMIO_OUT32(MMIO, 0x002C38 , 0x00000000 );
+#endif
+
+    MMIO_OUT32(MMIO, 0x002C50 , 0x00000000 );
+    MMIO_OUT32(MMIO, 0x002C54 , 0x0C320C80 );    
+    MMIO_OUT32(MMIO, 0x002C50 , 0x00000000 );
+    MMIO_OUT32(MMIO, 0x002C54 , 0x0C320C80 );    
+    MMIO_OUT32(MMIO, 0x002C80 , 0x20008258 );    
+    MMIO_OUT32(MMIO, 0x002C84 , 0x20000320 );    
+    MMIO_OUT32(MMIO, 0x002C94 , 0xFFFFFFFF );
+
+#if 0
+    MMIO_OUT32(MMIO, 0x002D00 , 0x00009009 );    
+    MMIO_OUT32(MMIO, 0x002D38 , 0x00000000 );
+    MMIO_OUT32(MMIO, 0x002D94 , 0x20002000 );
+    MMIO_OUT32(MMIO, 0x002D50 , 0xf0000000 );
+    MMIO_OUT32(MMIO, 0x002D80 , 0x24002000 );        
+    MMIO_OUT32(MMIO, 0x002D98 , 0x81000000 );        
+    MMIO_OUT32(MMIO, 0x002DB0 , 0x81000000 );        
+    MMIO_OUT32(MMIO, 0x002DC8 , 0x808000FF );
+    MMIO_OUT32(MMIO, 0x002DD4 , 0x02000200 );
+    MMIO_OUT32(MMIO, 0x002DD8 , 0x02000200 );
+    MMIO_OUT32(MMIO, 0x002D30 , 0x02092400 );    
+    MMIO_OUT32(MMIO, 0x002D04 , 0x00102120 );    
+    MMIO_OUT32(MMIO, 0x002D08 , 0xFFFFFFFF );
+    MMIO_OUT32(MMIO, 0x002D0C , 0xF00010D0 );    
+    MMIO_OUT32(MMIO, 0x002D10 , 0xC0000400 );
+#endif
+
+    MMIO_OUT32(MMIO, 0x002814,  0x00000000 );
+#if 0
+    MMIO_OUT32(MMIO, 0x002818 , 0x00036C20 );        
+#else
+    MMIO_OUT32(MMIO, 0x002818 , 0x00036020 );        
+#endif
+    MMIO_OUT32(MMIO, 0x00281C , 0x00098081 );	
+
+printf("first TRI\n");
+    clr.f = 5.0;
+    MMIO_OUT32(MMIO, 0x002820 , clr.i );               
+    clr.f = 595.0;
+    MMIO_OUT32(MMIO, 0x002824 , clr.i );               
+    clr.f = 1.0;
+    MMIO_OUT32(MMIO, 0x002828 , clr.i );
+    MMIO_OUT32(MMIO, 0x00282C , 0x00FF00 );        
+#if 0
+    clr.f = 0.0;
+    MMIO_OUT32(MMIO, 0x002830 , clr.i );
+    clr.f = 1.0;
+    MMIO_OUT32(MMIO, 0x002834 , clr.i );
+#endif
+
+    clr.f = 5.0;
+    MMIO_OUT32(MMIO, 0x002820 , clr.i );               
+    clr.f = 5.0;
+    MMIO_OUT32(MMIO, 0x002824 , clr.i );               
+    clr.f = 1.0;
+    MMIO_OUT32(MMIO, 0x002828 , clr.i );
+    MMIO_OUT32(MMIO, 0x00282C , 0xFF0000 );        
+#if 0
+    clr.f = 0.0;
+    MMIO_OUT32(MMIO, 0x002830 , clr.i );
+    clr.f = 0.0;
+    MMIO_OUT32(MMIO, 0x002834 , clr.i );
+#endif
+
+    clr.f = 395.0;
+printf("0x%x\n",clr.i);
+    MMIO_OUT32(MMIO, 0x002820 , clr.i );               
+    clr.f = 5.0;
+    MMIO_OUT32(MMIO, 0x002824 , clr.i );               
+    clr.f = 1.0;
+    MMIO_OUT32(MMIO, 0x002828 , clr.i );
+    MMIO_OUT32(MMIO, 0x00282C , 0xFF );        
+#if 0
+    clr.f = 1.0;
+    MMIO_OUT32(MMIO, 0x002830 , clr.i );
+    clr.f = 0.0;
+    MMIO_OUT32(MMIO, 0x002834 , clr.i );
+#endif
+
+printf("sec TRI\n");
+    MMIO_OUT32(MMIO, 0x00281C , 0x00093980 );    
+    clr.f = 395.0;
+    MMIO_OUT32(MMIO, 0x002820 , clr.i );               
+    clr.f = 595.0;
+    MMIO_OUT32(MMIO, 0x002824 , clr.i );               
+    clr.f = 1.0;
+    MMIO_OUT32(MMIO, 0x002828 , clr.i );               
+    MMIO_OUT32(MMIO, 0x00282C , 0x00FF00 );        
+#if 0
+    clr.f = 1.0;
+    MMIO_OUT32(MMIO, 0x002830 , clr.i );
+    clr.f = 1.0;
+    MMIO_OUT32(MMIO, 0x002834 , clr.i );
+#endif
+
+#if 0
+    MMIO_OUT32(MMIO,  0x002368 , MMIO_IN32(MMIO,0x002368)&0xfffffffe );
+#endif
+
+printf("fin TRI\n");
+
+    return 0;  
+}
+
+static INLINE void trident_draw_point(tridentContextPtr tmesa, 
+			     const tridentVertex *v0 )
+{
+   unsigned char *MMIO = tmesa->tridentScreen->mmio.map;
+}
+
+static INLINE void trident_draw_line( tridentContextPtr tmesa, 
+			     const tridentVertex *v0,
+			     const tridentVertex *v1 )
+{
+   unsigned char *MMIO = tmesa->tridentScreen->mmio.map;
+}
+
+static INLINE void trident_draw_triangle( tridentContextPtr tmesa,
+				 const tridentVertex *v0,
+				 const tridentVertex *v1, 
+				 const tridentVertex *v2 )
+{
+}
+
+static INLINE void trident_draw_quad( tridentContextPtr tmesa,
+			    const tridentVertex *v0,
+			    const tridentVertex *v1,
+			    const tridentVertex *v2,
+			    const tridentVertex *v3 )
+{
+   GLuint vertsize = tmesa->vertex_size;
+   GLint coloridx = (vertsize > 4) ? 4 : 3;
+   unsigned char *MMIO = tmesa->tridentScreen->mmio.map;
+   int clr;
+   float *ftmp = (float *)(&clr);
+
+   if (tmesa->dirty)
+	tridentUploadHwStateLocked( tmesa );
+#if 0
+	DrawTriangle(tmesa);
+	exit(0);
+#else
+#if 1
+	if (first) {
+	Init3D(tmesa);
+#if 0
+	DrawTriangle(tmesa);
+#endif
+	first = 0;
+	}
+#endif
+    
+    LOCK_HARDWARE( tmesa );
+
+    MMIO_OUT32(MMIO, 0x002C00 , 0x00000010 );
+    MMIO_OUT32(MMIO, 0x002C04 , 0x029C00C0 );
+
+    /* Z buffer */
+    MMIO_OUT32(MMIO, 0x002C24 , 0x00100000 /*| (tmesa->tridentScreen->depthOffset)*/ );
+    MMIO_OUT32(MMIO, 0x002C28 , 0xE0000000 | (tmesa->tridentScreen->depthPitch * 4) );
+
+    /* front buffer */
+    MMIO_OUT32(MMIO, 0x002C50 , 0x00000000 | (tmesa->drawOffset) );
+    MMIO_OUT32(MMIO, 0x002C54 , 0x0C320000 | (tmesa->drawPitch * 4) );    
+
+    /* clipper */
+    MMIO_OUT32(MMIO, 0x002C80 , 0x20008000 | tmesa->tridentScreen->height );    
+    MMIO_OUT32(MMIO, 0x002C84 , 0x20000000 | tmesa->tridentScreen->width );    
+
+    /* writemask */
+    MMIO_OUT32(MMIO, 0x002C94 , 0xFFFFFFFF );
+
+if (vertsize == 4) {
+    MMIO_OUT32(MMIO, 0x002818 , 0x0003A020 );        
+    MMIO_OUT32(MMIO, 0x00281C , 0x00098021 );	
+
+    *ftmp = v0->v.x;
+    MMIO_OUT32(MMIO, 0x002820 , clr );               
+    *ftmp = v0->v.y;
+    MMIO_OUT32(MMIO, 0x002824 , clr );               
+    *ftmp = v0->v.z;
+    MMIO_OUT32(MMIO, 0x002828 , clr );
+#if 0
+    *ftmp = v0->v.w;
+    MMIO_OUT32(MMIO, 0x00282C , clr );
+#endif
+    MMIO_OUT32(MMIO, 0x00282C , v0->ui[coloridx] );        
+
+    *ftmp = v1->v.x;
+    MMIO_OUT32(MMIO, 0x002820 , clr );               
+    *ftmp = v1->v.y;
+    MMIO_OUT32(MMIO, 0x002824 , clr );               
+    *ftmp = v1->v.z;
+    MMIO_OUT32(MMIO, 0x002828 , clr );
+#if 0
+    *ftmp = v1->v.w;
+    MMIO_OUT32(MMIO, 0x00282C , clr );
+#endif
+    MMIO_OUT32(MMIO, 0x00282C , v1->ui[coloridx] );        
+
+    *ftmp = v2->v.x;
+    MMIO_OUT32(MMIO, 0x002820 , clr );               
+    *ftmp = v2->v.y;
+    MMIO_OUT32(MMIO, 0x002824 , clr );               
+    *ftmp = v2->v.z;
+    MMIO_OUT32(MMIO, 0x002828 , clr );
+#if 0
+    *ftmp = v2->v.w;
+    MMIO_OUT32(MMIO, 0x00282C , clr );
+#endif
+    MMIO_OUT32(MMIO, 0x00282C , v2->ui[coloridx] );        
+
+    MMIO_OUT32(MMIO, 0x00281C , 0x00093020 );    
+    *ftmp = v3->v.x;
+    MMIO_OUT32(MMIO, 0x002820 , clr );               
+    *ftmp = v3->v.y;
+    MMIO_OUT32(MMIO, 0x002824 , clr );               
+    *ftmp = v3->v.z;
+    MMIO_OUT32(MMIO, 0x002828 , clr );
+#if 0
+    *ftmp = v3->v.w;
+    MMIO_OUT32(MMIO, 0x00282C , clr );
+#endif
+    MMIO_OUT32(MMIO, 0x00282C , v3->ui[coloridx] );        
+
+}
+#endif
+
+    UNLOCK_HARDWARE( tmesa );
+}
+/***********************************************************************
+ *                    Rasterization fallback helpers                   *
+ ***********************************************************************/
+
+
+/* This code is hit only when a mix of accelerated and unaccelerated
+ * primitives are being drawn, and only for the unaccelerated
+ * primitives.  
+ */
+static void 
+trident_fallback_quad( tridentContextPtr tmesa, 
+		    const tridentVertex *v0, 
+		    const tridentVertex *v1, 
+		    const tridentVertex *v2, 
+		    const tridentVertex *v3 )
+{
+   GLcontext *ctx = tmesa->glCtx;
+   SWvertex v[4];
+   trident_translate_vertex( ctx, v0, &v[0] );
+   trident_translate_vertex( ctx, v1, &v[1] );
+   trident_translate_vertex( ctx, v2, &v[2] );
+   trident_translate_vertex( ctx, v3, &v[3] );
+   _swrast_Quad( ctx, &v[0], &v[1], &v[2], &v[3] );
+}
+
+static void 
+trident_fallback_tri( tridentContextPtr tmesa, 
+		    const tridentVertex *v0, 
+		    const tridentVertex *v1, 
+		    const tridentVertex *v2 )
+{
+   GLcontext *ctx = tmesa->glCtx;
+   SWvertex v[3];
+   trident_translate_vertex( ctx, v0, &v[0] );
+   trident_translate_vertex( ctx, v1, &v[1] );
+   trident_translate_vertex( ctx, v2, &v[2] );
+   _swrast_Triangle( ctx, &v[0], &v[1], &v[2] );
+}
+
+static void 
+trident_fallback_line( tridentContextPtr tmesa,
+		     const tridentVertex *v0,
+		     const tridentVertex *v1 )
+{
+   GLcontext *ctx = tmesa->glCtx;
+   SWvertex v[2];
+   trident_translate_vertex( ctx, v0, &v[0] );
+   trident_translate_vertex( ctx, v1, &v[1] );
+   _swrast_Line( ctx, &v[0], &v[1] );
+}
+
+
+static void 
+trident_fallback_point( tridentContextPtr tmesa, 
+		      const tridentVertex *v0 )
+{
+   GLcontext *ctx = tmesa->glCtx;
+   SWvertex v[1];
+   trident_translate_vertex( ctx, v0, &v[0] );
+   _swrast_Point( ctx, &v[0] );
+}
+
+/***********************************************************************
+ *          Macros for t_dd_tritmp.h to draw basic primitives          *
+ ***********************************************************************/
+
+#define TRI( a, b, c )				\
+do {						\
+   if (DO_FALLBACK)				\
+      tmesa->draw_tri( tmesa, a, b, c );	\
+   else						\
+      trident_draw_triangle( tmesa, a, b, c );	\
+} while (0)
+
+#define QUAD( a, b, c, d )			\
+do {						\
+   if (DO_FALLBACK) {				\
+      tmesa->draw_tri( tmesa, a, b, d );	\
+      tmesa->draw_tri( tmesa, b, c, d );	\
+   } else 					\
+      trident_draw_quad( tmesa, a, b, c, d );	\
+} while (0)
+
+#define LINE( v0, v1 )				\
+do {						\
+   if (DO_FALLBACK)				\
+      tmesa->draw_line( tmesa, v0, v1 );	\
+   else 					\
+      trident_draw_line( tmesa, v0, v1 );	\
+} while (0)
+
+#define POINT( v0 )				\
+do {						\
+   if (DO_FALLBACK)				\
+      tmesa->draw_point( tmesa, v0 );		\
+   else 					\
+      trident_draw_point( tmesa, v0 );		\
+} while (0)
+
+/***********************************************************************
+ *              Build render functions from dd templates               *
+ ***********************************************************************/
+
+#define TRIDENT_OFFSET_BIT 	0x01
+#define TRIDENT_TWOSIDE_BIT	0x02
+#define TRIDENT_UNFILLED_BIT	0x04
+#define TRIDENT_FALLBACK_BIT	0x08
+#define TRIDENT_MAX_TRIFUNC	0x10
+
+
+static struct {
+   points_func		points;
+   line_func		line;
+   triangle_func	triangle;
+   quad_func		quad;
+} rast_tab[TRIDENT_MAX_TRIFUNC];
+
+
+#define DO_FALLBACK (IND & TRIDENT_FALLBACK_BIT)
+#define DO_OFFSET   (IND & TRIDENT_OFFSET_BIT)
+#define DO_UNFILLED (IND & TRIDENT_UNFILLED_BIT)
+#define DO_TWOSIDE  (IND & TRIDENT_TWOSIDE_BIT)
+#define DO_FLAT      0
+#define DO_TRI       1
+#define DO_QUAD      1
+#define DO_LINE      1
+#define DO_POINTS    1
+#define DO_FULL_QUAD 1
+
+#define HAVE_RGBA         1
+#define HAVE_SPEC         1
+#define HAVE_BACK_COLORS  0
+#define HAVE_HW_FLATSHADE 1
+#define VERTEX            tridentVertex
+#define TAB               rast_tab
+
+#define DEPTH_SCALE 1.0
+#define UNFILLED_TRI unfilled_tri
+#define UNFILLED_QUAD unfilled_quad
+#define VERT_X(_v) _v->v.x
+#define VERT_Y(_v) _v->v.y
+#define VERT_Z(_v) _v->v.z
+#define AREA_IS_CCW( a ) (a > 0)
+#define GET_VERTEX(e) (tmesa->verts + (e<<tmesa->vertex_stride_shift))
+
+#define TRIDENT_COLOR( dst, src )                \
+do {						\
+   dst[0] = src[2];				\
+   dst[1] = src[1];				\
+   dst[2] = src[0];				\
+   dst[3] = src[3];				\
+} while (0)
+
+#define TRIDENT_SPEC( dst, src )			\
+do {						\
+   dst[0] = src[2];				\
+   dst[1] = src[1];				\
+   dst[2] = src[0];				\
+} while (0)
+
+#define VERT_SET_RGBA( v, c )    TRIDENT_COLOR( v->ub4[coloroffset], c )
+#define VERT_COPY_RGBA( v0, v1 ) v0->ui[coloroffset] = v1->ui[coloroffset]
+#define VERT_SAVE_RGBA( idx )    color[idx] = v[idx]->ui[coloroffset]
+#define VERT_RESTORE_RGBA( idx ) v[idx]->ui[coloroffset] = color[idx]
+
+#define VERT_SET_SPEC( v, c )    if (havespec) TRIDENT_SPEC( v->ub4[5], c )
+#define VERT_COPY_SPEC( v0, v1 ) if (havespec) COPY_3V(v0->ub4[5], v1->ub4[5])
+#define VERT_SAVE_SPEC( idx )    if (havespec) spec[idx] = v[idx]->ui[5]
+#define VERT_RESTORE_SPEC( idx ) if (havespec) v[idx]->ui[5] = spec[idx]
+
+#define LOCAL_VARS(n)						\
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);		\
+   GLuint color[n], spec[n];					\
+   GLuint coloroffset = (tmesa->vertex_size == 4 ? 3 : 4);	\
+   GLboolean havespec = (tmesa->vertex_size == 4 ? 0 : 1);	\
+   (void) color; (void) spec; (void) coloroffset; (void) havespec;
+/***********************************************************************
+ *                Helpers for rendering unfilled primitives            *
+ ***********************************************************************/
+#if 0
+static const GLuint hw_prim[GL_POLYGON+1] = {
+   B_PrimType_Points,
+   B_PrimType_Lines,
+   B_PrimType_Lines,
+   B_PrimType_Lines,
+   B_PrimType_Triangles,
+   B_PrimType_Triangles,
+   B_PrimType_Triangles,
+   B_PrimType_Triangles,
+   B_PrimType_Triangles,
+   B_PrimType_Triangles
+};
+#endif
+
+static void tridentResetLineStipple( GLcontext *ctx );
+static void tridentRasterPrimitive( GLcontext *ctx, GLuint hwprim );
+static void tridentRenderPrimitive( GLcontext *ctx, GLenum prim );
+
+#define RASTERIZE(x) /*if (tmesa->hw_primitive != hw_prim[x]) \
+                        tridentRasterPrimitive( ctx, hw_prim[x] ) */
+#define RENDER_PRIMITIVE tmesa->render_primitive
+#define TAG(x) x
+#define IND TRIDENT_FALLBACK_BIT
+#include "tnl_dd/t_dd_unfilled.h"
+#undef IND
+
+/***********************************************************************
+ *                      Generate GL render functions                   *
+ ***********************************************************************/
+
+#define IND (0)
+#define TAG(x) x
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_OFFSET_BIT)
+#define TAG(x) x##_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_TWOSIDE_BIT)
+#define TAG(x) x##_twoside
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_TWOSIDE_BIT|TRIDENT_OFFSET_BIT)
+#define TAG(x) x##_twoside_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_UNFILLED_BIT)
+#define TAG(x) x##_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_OFFSET_BIT|TRIDENT_UNFILLED_BIT)
+#define TAG(x) x##_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_TWOSIDE_BIT|TRIDENT_UNFILLED_BIT)
+#define TAG(x) x##_twoside_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_TWOSIDE_BIT|TRIDENT_OFFSET_BIT|TRIDENT_UNFILLED_BIT)
+#define TAG(x) x##_twoside_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_FALLBACK_BIT)
+#define TAG(x) x##_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_OFFSET_BIT|TRIDENT_FALLBACK_BIT)
+#define TAG(x) x##_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_TWOSIDE_BIT|TRIDENT_FALLBACK_BIT)
+#define TAG(x) x##_twoside_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_TWOSIDE_BIT|TRIDENT_OFFSET_BIT|TRIDENT_FALLBACK_BIT)
+#define TAG(x) x##_twoside_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_UNFILLED_BIT|TRIDENT_FALLBACK_BIT)
+#define TAG(x) x##_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_OFFSET_BIT|TRIDENT_UNFILLED_BIT|TRIDENT_FALLBACK_BIT)
+#define TAG(x) x##_offset_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_TWOSIDE_BIT|TRIDENT_UNFILLED_BIT|TRIDENT_FALLBACK_BIT)
+#define TAG(x) x##_twoside_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (TRIDENT_TWOSIDE_BIT|TRIDENT_OFFSET_BIT|TRIDENT_UNFILLED_BIT|TRIDENT_FALLBACK_BIT)
+#define TAG(x) x##_twoside_offset_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+static void init_rast_tab( void )
+{
+   init();
+   init_offset();
+   init_twoside();
+   init_twoside_offset();
+   init_unfilled();
+   init_offset_unfilled();
+   init_twoside_unfilled();
+   init_twoside_offset_unfilled();
+   init_fallback();
+   init_offset_fallback();
+   init_twoside_fallback();
+   init_twoside_offset_fallback();
+   init_unfilled_fallback();
+   init_offset_unfilled_fallback();
+   init_twoside_unfilled_fallback();
+   init_twoside_offset_unfilled_fallback();
+}
+
+
+/**********************************************************************/
+/*               Render unclipped begin/end objects                   */
+/**********************************************************************/
+
+#define VERT(x) (tridentVertex *)(tridentverts + (x << shift))
+#define RENDER_POINTS( start, count )		\
+   for ( ; start < count ; start++) 		\
+      trident_draw_point( tmesa, VERT(start) )
+#define RENDER_LINE( v0, v1 ) \
+   trident_draw_line( tmesa, VERT(v0), VERT(v1) )
+#define RENDER_TRI( v0, v1, v2 )  \
+   trident_draw_triangle( tmesa, VERT(v0), VERT(v1), VERT(v2) )
+#define RENDER_QUAD( v0, v1, v2, v3 ) \
+   trident_draw_quad( tmesa, VERT(v0), VERT(v1), VERT(v2), VERT(v3) )
+#define INIT(x) tridentRenderPrimitive( ctx, x );
+#undef LOCAL_VARS
+#define LOCAL_VARS						\
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);		\
+   const GLuint shift = tmesa->vertex_stride_shift;		\
+   const char *tridentverts = (char *)tmesa->verts;		\
+   const GLboolean stipple = ctx->Line.StippleFlag;		\
+   const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts;	\
+   (void) elt;
+#define RESET_STIPPLE	if ( stipple ) tridentResetLineStipple( ctx );
+#define RESET_OCCLUSION
+#define PRESERVE_VB_DEFS
+#define ELT(x) (x)
+#define TAG(x) trident_##x##_verts
+#include "tnl/t_vb_rendertmp.h"
+#undef ELT
+#undef TAG
+#define TAG(x) trident_##x##_elts
+#define ELT(x) elt[x]
+#include "tnl/t_vb_rendertmp.h"
+
+/**********************************************************************/
+/*                   Render clipped primitives                        */
+/**********************************************************************/
+
+static void tridentRenderClippedPoly( GLcontext *ctx, const GLuint *elts, 
+				   GLuint n )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   GLuint prim = tmesa->render_primitive;
+
+   /* Render the new vertices as an unclipped polygon. 
+    */
+   {
+      GLuint *tmp = VB->Elts;
+      VB->Elts = (GLuint *)elts;
+      tnl->Driver.Render.PrimTabElts[GL_POLYGON]( ctx, 0, n, PRIM_BEGIN|PRIM_END );
+      VB->Elts = tmp;
+   }
+
+   /* Restore the render primitive
+    */
+   if (prim != GL_POLYGON)
+      tnl->Driver.Render.PrimitiveNotify( ctx, prim );
+}
+
+static void tridentRenderClippedLine( GLcontext *ctx, GLuint ii, GLuint jj )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   tnl->Driver.Render.Line( ctx, ii, jj );
+}
+
+
+/**********************************************************************/
+/*                    Choose render functions                         */
+/**********************************************************************/
+
+#define _TRIDENT_NEW_RENDER_STATE (_DD_NEW_LINE_STIPPLE |	\
+			          _DD_NEW_LINE_SMOOTH |		\
+			          _DD_NEW_POINT_SMOOTH |	\
+			          _DD_NEW_TRI_SMOOTH |		\
+			          _DD_NEW_TRI_UNFILLED |	\
+			          _DD_NEW_TRI_LIGHT_TWOSIDE |	\
+			          _DD_NEW_TRI_OFFSET)		\
+
+
+#define POINT_FALLBACK (DD_POINT_SMOOTH)
+#define LINE_FALLBACK (DD_LINE_STIPPLE|DD_LINE_SMOOTH)
+#define TRI_FALLBACK (DD_TRI_SMOOTH)
+#define ANY_FALLBACK_FLAGS (POINT_FALLBACK|LINE_FALLBACK|TRI_FALLBACK)
+#define ANY_RASTER_FLAGS (DD_TRI_LIGHT_TWOSIDE|DD_TRI_OFFSET|DD_TRI_UNFILLED)
+
+
+static void tridentChooseRenderState(GLcontext *ctx)
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   GLuint flags = ctx->_TriangleCaps;
+   GLuint index = 0;
+
+   if (flags & (ANY_RASTER_FLAGS|ANY_FALLBACK_FLAGS)) {
+      tmesa->draw_point = trident_draw_point;
+      tmesa->draw_line = trident_draw_line;
+      tmesa->draw_tri = trident_draw_triangle;
+
+      if (flags & ANY_RASTER_FLAGS) {
+	 if (flags & DD_TRI_LIGHT_TWOSIDE) index |= TRIDENT_TWOSIDE_BIT;
+	 if (flags & DD_TRI_OFFSET)        index |= TRIDENT_OFFSET_BIT;
+	 if (flags & DD_TRI_UNFILLED)      index |= TRIDENT_UNFILLED_BIT;
+      }
+
+      /* Hook in fallbacks for specific primitives.
+       */
+      if (flags & (POINT_FALLBACK|LINE_FALLBACK|TRI_FALLBACK)) {
+	 if (flags & POINT_FALLBACK) tmesa->draw_point = trident_fallback_point;
+	 if (flags & LINE_FALLBACK)  tmesa->draw_line = trident_fallback_line;
+	 if (flags & TRI_FALLBACK)   tmesa->draw_tri = trident_fallback_tri;
+	 index |= TRIDENT_FALLBACK_BIT;
+      }
+   }
+
+   if (tmesa->RenderIndex != index) {
+      tmesa->RenderIndex = index;
+
+      tnl->Driver.Render.Points = rast_tab[index].points;
+      tnl->Driver.Render.Line = rast_tab[index].line;
+      tnl->Driver.Render.Triangle = rast_tab[index].triangle;
+      tnl->Driver.Render.Quad = rast_tab[index].quad;
+         
+      if (tmesa->RenderIndex == 0) {
+         tnl->Driver.Render.PrimTabVerts = trident_render_tab_verts;
+         tnl->Driver.Render.PrimTabElts = trident_render_tab_elts;
+      } else {
+         tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
+         tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
+      }
+      tnl->Driver.Render.ClippedLine = tridentRenderClippedLine;
+      tnl->Driver.Render.ClippedPolygon = tridentRenderClippedPoly;
+   }
+}
+
+
+/**********************************************************************/
+/*                 High level hooks for t_vb_render.c                 */
+/**********************************************************************/
+
+
+
+/* Determine the rasterized primitive when not drawing unfilled 
+ * polygons.
+ *
+ * Used only for the default render stage which always decomposes
+ * primitives to trianges/lines/points.  For the accelerated stage,
+ * which renders strips as strips, the equivalent calculations are
+ * performed in tridentrender.c.
+ */
+
+static void tridentRasterPrimitive( GLcontext *ctx, GLuint hwprim )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+   if (tmesa->hw_primitive != hwprim)
+      tmesa->hw_primitive = hwprim;
+}
+
+static void tridentRenderPrimitive( GLcontext *ctx, GLenum prim )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+   tmesa->render_primitive = prim;
+}
+
+static void tridentRunPipeline( GLcontext *ctx )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+
+   if ( tmesa->new_state )
+      tridentDDUpdateHWState( ctx );
+
+   if (tmesa->new_gl_state) {
+#if 0
+      if (tmesa->new_gl_state & _NEW_TEXTURE)
+	 tridentUpdateTextureState( ctx );
+#endif
+
+   if (!tmesa->Fallback) {
+      if (tmesa->new_gl_state & _TRIDENT_NEW_VERTEX)
+	 tridentChooseVertexState( ctx );
+      
+      if (tmesa->new_gl_state & _TRIDENT_NEW_RENDER_STATE)
+	 tridentChooseRenderState( ctx );
+   }
+      
+      tmesa->new_gl_state = 0;
+   }
+
+   _tnl_run_pipeline( ctx );
+}
+
+static void tridentRenderStart( GLcontext *ctx )
+{
+   /* Check for projective texturing.  Make sure all texcoord
+    * pointers point to something.  (fix in mesa?)  
+    */
+   tridentCheckTexSizes( ctx );
+}
+
+static void tridentRenderFinish( GLcontext *ctx )
+{
+   if (0)
+      _swrast_flush( ctx );	/* never needed */
+}
+
+static void tridentResetLineStipple( GLcontext *ctx )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+
+   /* Reset the hardware stipple counter.
+    */
+}
+
+
+/**********************************************************************/
+/*           Transition to/from hardware rasterization.               */
+/**********************************************************************/
+
+
+void tridentFallback( tridentContextPtr tmesa, GLuint bit, GLboolean mode )
+{
+   GLcontext *ctx = tmesa->glCtx;
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   GLuint oldfallback = tmesa->Fallback;
+
+      _tnl_need_projected_coords( ctx, GL_FALSE );
+
+   if (mode) {
+      tmesa->Fallback |= bit;
+      if (oldfallback == 0) {
+	 _swsetup_Wakeup( ctx );
+	 tmesa->RenderIndex = ~0;
+      }
+   }
+   else {
+      tmesa->Fallback &= ~bit;
+      if (oldfallback == bit) {
+	 _swrast_flush( ctx );
+	 tnl->Driver.Render.Start = tridentRenderStart;
+	 tnl->Driver.Render.PrimitiveNotify = tridentRenderPrimitive;
+	 tnl->Driver.Render.Finish = tridentRenderFinish;
+	 tnl->Driver.Render.BuildVertices = tridentBuildVertices;
+         tnl->Driver.Render.ResetLineStipple = tridentResetLineStipple;
+	 tmesa->new_gl_state |= (_TRIDENT_NEW_RENDER_STATE|
+				 _TRIDENT_NEW_VERTEX);
+      }
+   }
+}
+
+
+/**********************************************************************/
+/*                            Initialization.                         */
+/**********************************************************************/
+
+
+void tridentDDInitTriFuncs( GLcontext *ctx )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   static int firsttime = 1;
+
+   if (firsttime) {
+      init_rast_tab();
+      firsttime = 0;
+   }
+   
+   tmesa->RenderIndex = ~0;
+
+   tnl->Driver.RunPipeline = tridentRunPipeline;
+   tnl->Driver.Render.Start = tridentRenderStart;
+   tnl->Driver.Render.Finish = tridentRenderFinish; 
+   tnl->Driver.Render.PrimitiveNotify = tridentRenderPrimitive;
+   tnl->Driver.Render.ResetLineStipple = tridentResetLineStipple;
+   tnl->Driver.Render.BuildVertices = tridentBuildVertices;
+}
diff --git a/src/mesa/drivers/dri/trident/trident_vb.c b/src/mesa/drivers/dri/trident/trident_vb.c
new file mode 100644
index 0000000000..4c6e088da4
--- /dev/null
+++ b/src/mesa/drivers/dri/trident/trident_vb.c
@@ -0,0 +1,435 @@
+/*
+ * Copyright 2002 by Alan Hourihane, Sychdyn, North Wales, UK.
+ *
+ * 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 Alan Hourihane not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Alan Hourihane makes no representations
+ * about the suitability of this software for any purpose.  It is provided
+ * "as is" without express or implied warranty.
+ *
+ * ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL ALAN HOURIHANE 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.
+ *
+ * Authors:  Alan Hourihane, <alanh@fairlite.demon.co.uk>
+ *
+ * Trident CyberBladeXP driver.
+ *
+ */
+#include "glheader.h"
+#include "mtypes.h"
+#include "mem.h"
+#include "macros.h"
+#include "colormac.h"
+#include "mmath.h"
+
+#include "swrast_setup/swrast_setup.h"
+#include "swrast/swrast.h"
+#include "tnl/t_context.h"
+#include "tnl/tnl.h"
+
+#include "trident_context.h"
+
+#define TRIDENT_TEX1_BIT       0x1
+#define TRIDENT_TEX0_BIT       0x2
+#define TRIDENT_RGBA_BIT       0x4
+#define TRIDENT_SPEC_BIT       0x8
+#define TRIDENT_FOG_BIT        0x10
+#define TRIDENT_XYZW_BIT       0x20
+#define TRIDENT_PTEX_BIT       0x40
+#define TRIDENT_MAX_SETUP      0x80
+
+static struct {
+   void                (*emit)( GLcontext *, GLuint, GLuint, void *, GLuint );
+   interp_func		interp;
+   copy_pv_func	        copy_pv;
+   GLboolean           (*check_tex_sizes)( GLcontext *ctx );
+   GLuint               vertex_size;
+   GLuint               vertex_stride_shift;
+   GLuint               vertex_format;
+} setup_tab[TRIDENT_MAX_SETUP];
+
+#define TINY_VERTEX_FORMAT      1
+#define NOTEX_VERTEX_FORMAT     2
+#define TEX0_VERTEX_FORMAT      3
+#define TEX1_VERTEX_FORMAT      4
+#define PROJ_TEX1_VERTEX_FORMAT 5
+#define TEX2_VERTEX_FORMAT      6
+#define TEX3_VERTEX_FORMAT      7
+#define PROJ_TEX3_VERTEX_FORMAT 8
+
+#define DO_XYZW (IND & TRIDENT_XYZW_BIT)
+#define DO_RGBA (IND & TRIDENT_RGBA_BIT)
+#define DO_SPEC (IND & TRIDENT_SPEC_BIT)
+#define DO_FOG  (IND & TRIDENT_FOG_BIT)
+#define DO_TEX0 (IND & TRIDENT_TEX0_BIT)
+#define DO_TEX1 (IND & TRIDENT_TEX1_BIT)
+#define DO_TEX2 0
+#define DO_TEX3 0
+#define DO_PTEX (IND & TRIDENT_PTEX_BIT)
+
+#define VERTEX tridentVertex
+#define LOCALVARS tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+#define GET_VIEWPORT_MAT() 		tmesa->hw_viewport
+#define GET_TEXSOURCE(n)  		tmesa->tmu_source[n]
+#define GET_VERTEX_FORMAT() 		tmesa->vertex_format
+#define GET_VERTEX_STORE()  		tmesa->verts
+#define GET_VERTEX_STRIDE_SHIFT() 	tmesa->vertex_stride_shift
+#define GET_UBYTE_COLOR_STORE() 	&tmesa->UbyteColor
+#define GET_UBYTE_SPEC_COLOR_STORE() 	&tmesa->UbyteSecondaryColor
+			       
+#define HAVE_HW_VIEWPORT    0
+#define HAVE_HW_DIVIDE      0
+#define HAVE_RGBA_COLOR     0 
+#define HAVE_TINY_VERTICES  1
+#define HAVE_NOTEX_VERTICES 1
+#define HAVE_TEX0_VERTICES  1
+#define HAVE_TEX1_VERTICES  1
+#define HAVE_TEX2_VERTICES  0
+#define HAVE_TEX3_VERTICES  0
+#define HAVE_PTEX_VERTICES  0
+
+#define UNVIEWPORT_VARS                                 \
+   const GLfloat dx = - tmesa->drawX - SUBPIXEL_X;	\
+   const GLfloat dy = (tmesa->driDrawable->h + 	        \
+		       tmesa->drawY + SUBPIXEL_Y);	\
+   const GLfloat sz = 1.0 / tmesa->depth_scale
+
+#define UNVIEWPORT_X(x)    x  +  dx;
+#define UNVIEWPORT_Y(y)  - y  +  dy;
+#define UNVIEWPORT_Z(z)    z  *  sz;
+
+#define PTEX_FALLBACK()	 tridentFallback(TRIDENT_CONTEXT(ctx), TRIDENT_FALLBACK_TEXTURE, 1)
+
+#define IMPORT_FLOAT_COLORS trident_import_float_colors
+#define IMPORT_FLOAT_SPEC_COLORS trident_import_float_spec_colors
+
+#define INTERP_VERTEX setup_tab[tmesa->SetupIndex].interp
+#define COPY_PV_VERTEX setup_tab[tmesa->SetupIndex].copy_pv
+
+/***********************************************************************
+ *         Generate  pv-copying and translation functions              *
+ ***********************************************************************/
+
+#define TAG(x) trident_##x
+#include "tnl_dd/t_dd_vb.c"
+
+/***********************************************************************
+ *             Generate vertex emit and interp functions               *
+ ***********************************************************************/
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT)
+#define TAG(x) x##_wg
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT)
+#define TAG(x) x##_wgs
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_TEX0_BIT)
+#define TAG(x) x##_wgt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
+#define TAG(x) x##_wgt0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_TEX0_BIT|TRIDENT_PTEX_BIT)
+#define TAG(x) x##_wgpt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT)
+#define TAG(x) x##_wgst0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
+#define TAG(x) x##_wgst0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_PTEX_BIT)
+#define TAG(x) x##_wgspt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT)
+#define TAG(x) x##_wgf
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT)
+#define TAG(x) x##_wgfs
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT)
+#define TAG(x) x##_wgft0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
+#define TAG(x) x##_wgft0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT|TRIDENT_PTEX_BIT)
+#define TAG(x) x##_wgfpt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT)
+#define TAG(x) x##_wgfst0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
+#define TAG(x) x##_wgfst0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_PTEX_BIT)
+#define TAG(x) x##_wgfspt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_TEX0_BIT)
+#define TAG(x) x##_t0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
+#define TAG(x) x##_t0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_FOG_BIT)
+#define TAG(x) x##_f
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT)
+#define TAG(x) x##_ft0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
+#define TAG(x) x##_ft0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT)
+#define TAG(x) x##_g
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT)
+#define TAG(x) x##_gs
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT|TRIDENT_TEX0_BIT)
+#define TAG(x) x##_gt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
+#define TAG(x) x##_gt0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT)
+#define TAG(x) x##_gst0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
+#define TAG(x) x##_gst0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT)
+#define TAG(x) x##_gf
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT)
+#define TAG(x) x##_gfs
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT)
+#define TAG(x) x##_gft0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
+#define TAG(x) x##_gft0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT)
+#define TAG(x) x##_gfst0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (TRIDENT_RGBA_BIT|TRIDENT_FOG_BIT|TRIDENT_SPEC_BIT|TRIDENT_TEX0_BIT|TRIDENT_TEX1_BIT)
+#define TAG(x) x##_gfst0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+static void init_setup_tab( void )
+{
+   init_wg();
+   init_wgs();
+   init_wgt0();
+   init_wgt0t1();
+   init_wgpt0();
+   init_wgst0();
+   init_wgst0t1();
+   init_wgspt0();
+   init_wgf();
+   init_wgfs();
+   init_wgft0();
+   init_wgft0t1();
+   init_wgfpt0();
+   init_wgfst0();
+   init_wgfst0t1();
+   init_wgfspt0();
+   init_t0();
+   init_t0t1();
+   init_f();
+   init_ft0();
+   init_ft0t1();
+   init_g();
+   init_gs();
+   init_gt0();
+   init_gt0t1();
+   init_gst0();
+   init_gst0t1();
+   init_gf();
+   init_gfs();
+   init_gft0();
+   init_gft0t1();
+   init_gfst0();
+   init_gfst0t1();
+}
+
+void tridentBuildVertices( GLcontext *ctx, 
+			 GLuint start, 
+			 GLuint count,
+			 GLuint newinputs )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT( ctx );
+   GLubyte *v = ((GLubyte *)tmesa->verts + (start<<tmesa->vertex_stride_shift));
+   GLuint stride = 1<<tmesa->vertex_stride_shift;
+
+   newinputs |= tmesa->SetupNewInputs;
+   tmesa->SetupNewInputs = 0;
+
+   if (!newinputs)
+      return;
+
+   if (newinputs & VERT_CLIP) {
+      setup_tab[tmesa->SetupIndex].emit( ctx, start, count, v, stride );   
+   } else {
+      GLuint ind = 0;
+
+      if (newinputs & VERT_RGBA)
+	 ind |= TRIDENT_RGBA_BIT;
+
+      if (newinputs & VERT_SPEC_RGB)
+	 ind |= TRIDENT_SPEC_BIT;
+
+      if (newinputs & VERT_TEX0)
+	 ind |= TRIDENT_TEX0_BIT;
+
+      if (newinputs & VERT_TEX1)
+	 ind |= TRIDENT_TEX1_BIT;
+
+      if (newinputs & VERT_FOG_COORD)
+	 ind |= TRIDENT_FOG_BIT;
+
+      if (tmesa->SetupIndex & TRIDENT_PTEX_BIT)
+	 ind = ~0;
+
+      ind &= tmesa->SetupIndex;
+
+      if (ind) {
+	 setup_tab[ind].emit( ctx, start, count, v, stride );   
+      }
+   }
+}
+
+void tridentCheckTexSizes( GLcontext *ctx )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT( ctx );
+
+   if (!setup_tab[tmesa->SetupIndex].check_tex_sizes(ctx)) {
+      TNLcontext *tnl = TNL_CONTEXT(ctx);
+
+      /* Invalidate stored verts
+       */
+      tmesa->SetupNewInputs = ~0;
+      tmesa->SetupIndex |= TRIDENT_PTEX_BIT;
+
+      if (!tmesa->Fallback &&
+	  !(ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
+	 tnl->Driver.Render.Interp = setup_tab[tmesa->SetupIndex].interp;
+	 tnl->Driver.Render.CopyPV = setup_tab[tmesa->SetupIndex].copy_pv;
+      }
+   }
+}
+
+void tridentChooseVertexState( GLcontext *ctx )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT( ctx );
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   GLuint ind = TRIDENT_XYZW_BIT|TRIDENT_RGBA_BIT;
+
+   if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR)
+      ind |= TRIDENT_SPEC_BIT;
+
+   if (ctx->Fog.Enabled)
+      ind |= TRIDENT_FOG_BIT;
+
+   if (ctx->Texture._ReallyEnabled) {
+      ind |= TRIDENT_TEX0_BIT;
+      if (ctx->Texture.Unit[0]._ReallyEnabled &&
+	  ctx->Texture.Unit[1]._ReallyEnabled) {
+	 ind |= TRIDENT_TEX1_BIT;
+      }
+   }
+
+   tmesa->SetupIndex = ind;
+
+   if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) {
+      tnl->Driver.Render.Interp = trident_interp_extras;
+      tnl->Driver.Render.CopyPV = trident_copy_pv_extras;
+   } else {
+      tnl->Driver.Render.Interp = setup_tab[ind].interp;
+      tnl->Driver.Render.CopyPV = setup_tab[ind].copy_pv;
+   }
+
+   if (setup_tab[ind].vertex_format != tmesa->vertex_format) {
+      tmesa->vertex_format = setup_tab[ind].vertex_format;
+      tmesa->vertex_size = setup_tab[ind].vertex_size;
+      tmesa->vertex_stride_shift = setup_tab[ind].vertex_stride_shift;
+   }
+}
+
+void tridentInitVB( GLcontext *ctx )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+   GLuint size = TNL_CONTEXT(ctx)->vb.Size;
+
+   tmesa->verts = (char *)ALIGN_MALLOC( size * 16 * 4, 32 );
+
+   {
+      static int firsttime = 1;
+      if (firsttime) {
+	 init_setup_tab();
+	 firsttime = 0;
+      }
+   }
+}
+
+void tridentFreeVB( GLcontext *ctx )
+{
+   tridentContextPtr tmesa = TRIDENT_CONTEXT(ctx);
+
+   if (tmesa->verts) {
+      ALIGN_FREE(tmesa->verts);
+      tmesa->verts = 0;
+   }
+
+   if (tmesa->UbyteSecondaryColor.Ptr) {
+      ALIGN_FREE(tmesa->UbyteSecondaryColor.Ptr);
+      tmesa->UbyteSecondaryColor.Ptr = 0;
+   }
+
+   if (tmesa->UbyteColor.Ptr) {
+      ALIGN_FREE(tmesa->UbyteColor.Ptr);
+      tmesa->UbyteColor.Ptr = 0;
+   }
+}