patch to import Jon Smirl's work from Bitkeeper

1 files changed, 1239 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/r128/r128_state.c b/src/mesa/drivers/dri/r128/r128_state.c
new file mode 100644
index 0000000000..85b3b68402
--- /dev/null
+++ b/src/mesa/drivers/dri/r128/r128_state.c
@@ -0,0 +1,1239 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/r128/r128_state.c,v 1.11 2002/10/30 12:51:39 alanh Exp $ */
+/**************************************************************************
+
+Copyright 1999, 2000 ATI Technologies Inc. and Precision Insight, Inc.,
+                                               Cedar Park, Texas.
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+on the rights to use, copy, modify, merge, publish, distribute, sub
+license, and/or sell copies of the Software, and to permit persons to whom
+the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ATI, PRECISION INSIGHT AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+**************************************************************************/
+
+/*
+ * Authors:
+ *   Gareth Hughes <gareth@valinux.com>
+ *   Kevin E. Martin <martin@valinux.com>
+ *   Keith Whitwell <keith@tungstengraphics.com>
+ *
+ */
+
+#include "r128_context.h"
+#include "r128_state.h"
+#include "r128_ioctl.h"
+#include "r128_tris.h"
+#include "r128_vb.h"
+#include "r128_tex.h"
+
+#include "context.h"
+#include "enums.h"
+#include "colormac.h"
+#include "swrast/swrast.h"
+#include "array_cache/acache.h"
+#include "tnl/tnl.h"
+#include "swrast_setup/swrast_setup.h"
+
+#include "tnl/t_pipeline.h"
+
+
+/* =============================================================
+ * Alpha blending
+ */
+
+static void r128UpdateAlphaMode( GLcontext *ctx )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   GLuint a = rmesa->setup.misc_3d_state_cntl_reg;
+   GLuint t = rmesa->setup.tex_cntl_c;
+
+   if ( ctx->Color.AlphaEnabled ) {
+      GLubyte ref;
+
+      CLAMPED_FLOAT_TO_UBYTE(ref, ctx->Color.AlphaRef);
+
+      a &= ~(R128_ALPHA_TEST_MASK | R128_REF_ALPHA_MASK);
+
+      switch ( ctx->Color.AlphaFunc ) {
+      case GL_NEVER:
+	 a |= R128_ALPHA_TEST_NEVER;
+	 break;
+      case GL_LESS:
+	 a |= R128_ALPHA_TEST_LESS;
+         break;
+      case GL_LEQUAL:
+	 a |= R128_ALPHA_TEST_LESSEQUAL;
+	 break;
+      case GL_EQUAL:
+	 a |= R128_ALPHA_TEST_EQUAL;
+	 break;
+      case GL_GEQUAL:
+	 a |= R128_ALPHA_TEST_GREATEREQUAL;
+	 break;
+      case GL_GREATER:
+	 a |= R128_ALPHA_TEST_GREATER;
+	 break;
+      case GL_NOTEQUAL:
+	 a |= R128_ALPHA_TEST_NEQUAL;
+	 break;
+      case GL_ALWAYS:
+	 a |= R128_ALPHA_TEST_ALWAYS;
+	 break;
+      }
+
+      a |= ref & R128_REF_ALPHA_MASK;
+      t |= R128_ALPHA_TEST_ENABLE;
+   } else {
+      t &= ~R128_ALPHA_TEST_ENABLE;
+   }
+
+   FALLBACK( rmesa, R128_FALLBACK_BLEND_FUNC, GL_FALSE );
+
+   if ( ctx->Color.BlendEnabled ) {
+      a &= ~(R128_ALPHA_BLEND_SRC_MASK | R128_ALPHA_BLEND_DST_MASK);
+
+      switch ( ctx->Color.BlendSrcRGB ) {
+      case GL_ZERO:
+	 a |= R128_ALPHA_BLEND_SRC_ZERO;
+	 break;
+      case GL_ONE:
+	 a |= R128_ALPHA_BLEND_SRC_ONE;
+	 break;
+      case GL_DST_COLOR:
+	 a |= R128_ALPHA_BLEND_SRC_DESTCOLOR;
+	 break;
+      case GL_ONE_MINUS_DST_COLOR:
+	 a |= R128_ALPHA_BLEND_SRC_INVDESTCOLOR;
+	 break;
+      case GL_SRC_ALPHA:
+	 a |= R128_ALPHA_BLEND_SRC_SRCALPHA;
+	 break;
+      case GL_ONE_MINUS_SRC_ALPHA:
+	 a |= R128_ALPHA_BLEND_SRC_INVSRCALPHA;
+	 break;
+      case GL_DST_ALPHA:
+	 a |= R128_ALPHA_BLEND_SRC_DESTALPHA;
+	 break;
+      case GL_ONE_MINUS_DST_ALPHA:
+	 a |= R128_ALPHA_BLEND_SRC_INVDESTALPHA;
+	 break;
+      case GL_SRC_ALPHA_SATURATE:
+	 a |= R128_ALPHA_BLEND_SRC_SRCALPHASAT;
+	 break;
+      default:
+         FALLBACK( rmesa, R128_FALLBACK_BLEND_FUNC, GL_TRUE );
+      }
+
+      switch ( ctx->Color.BlendDstRGB ) {
+      case GL_ZERO:
+	 a |= R128_ALPHA_BLEND_DST_ZERO;
+	 break;
+      case GL_ONE:
+	 a |= R128_ALPHA_BLEND_DST_ONE;
+	 break;
+      case GL_SRC_COLOR:
+	 a |= R128_ALPHA_BLEND_DST_SRCCOLOR;
+	 break;
+      case GL_ONE_MINUS_SRC_COLOR:
+	 a |= R128_ALPHA_BLEND_DST_INVSRCCOLOR;
+	 break;
+      case GL_SRC_ALPHA:
+	 a |= R128_ALPHA_BLEND_DST_SRCALPHA;
+	 break;
+      case GL_ONE_MINUS_SRC_ALPHA:
+	 a |= R128_ALPHA_BLEND_DST_INVSRCALPHA;
+	 break;
+      case GL_DST_ALPHA:
+	 a |= R128_ALPHA_BLEND_DST_DESTALPHA;
+	 break;
+      case GL_ONE_MINUS_DST_ALPHA:
+	 a |= R128_ALPHA_BLEND_DST_INVDESTALPHA;
+	 break;
+      default:
+         FALLBACK( rmesa, R128_FALLBACK_BLEND_FUNC, GL_TRUE );
+      }
+
+      t |=  R128_ALPHA_ENABLE;
+   } else {
+      t &= ~R128_ALPHA_ENABLE;
+   }
+
+   if ( rmesa->setup.misc_3d_state_cntl_reg != a ) {
+      rmesa->setup.misc_3d_state_cntl_reg = a;
+      rmesa->dirty |= R128_UPLOAD_CONTEXT | R128_UPLOAD_MASKS;
+   }
+   if ( rmesa->setup.tex_cntl_c != t ) {
+      rmesa->setup.tex_cntl_c = t;
+      rmesa->dirty |= R128_UPLOAD_CONTEXT | R128_UPLOAD_MASKS;
+   }
+}
+
+static void r128DDAlphaFunc( GLcontext *ctx, GLenum func, GLfloat ref )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+   rmesa->new_state |= R128_NEW_ALPHA;
+}
+
+static void r128DDBlendEquation( GLcontext *ctx, GLenum mode )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+
+   /* BlendEquation sets ColorLogicOpEnabled in an unexpected
+    * manner.
+    */
+   FALLBACK( R128_CONTEXT(ctx), R128_FALLBACK_LOGICOP,
+	     (ctx->Color.ColorLogicOpEnabled &&
+	      ctx->Color.LogicOp != GL_COPY));
+
+   /* Can only do blend addition, not min, max, subtract, etc. */
+   FALLBACK( R128_CONTEXT(ctx), R128_FALLBACK_BLEND_EQ,
+	     mode != GL_FUNC_ADD_EXT);
+
+   rmesa->new_state |= R128_NEW_ALPHA;
+}
+
+static void r128DDBlendFunc( GLcontext *ctx, GLenum sfactor, GLenum dfactor )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+   rmesa->new_state |= R128_NEW_ALPHA;
+}
+
+static void r128DDBlendFuncSeparate( GLcontext *ctx,
+				     GLenum sfactorRGB, GLenum dfactorRGB,
+				     GLenum sfactorA, GLenum dfactorA )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+   rmesa->new_state |= R128_NEW_ALPHA;
+}
+
+
+/* =============================================================
+ * Depth testing
+ */
+
+static void r128UpdateZMode( GLcontext *ctx )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   GLuint z = rmesa->setup.z_sten_cntl_c;
+   GLuint t = rmesa->setup.tex_cntl_c;
+
+   if ( ctx->Depth.Test ) {
+      z &= ~R128_Z_TEST_MASK;
+
+      switch ( ctx->Depth.Func ) {
+      case GL_NEVER:
+	 z |= R128_Z_TEST_NEVER;
+	 break;
+      case GL_ALWAYS:
+	 z |= R128_Z_TEST_ALWAYS;
+	 break;
+      case GL_LESS:
+	 z |= R128_Z_TEST_LESS;
+	 break;
+      case GL_LEQUAL:
+	 z |= R128_Z_TEST_LESSEQUAL;
+	 break;
+      case GL_EQUAL:
+	 z |= R128_Z_TEST_EQUAL;
+	 break;
+      case GL_GEQUAL:
+	 z |= R128_Z_TEST_GREATEREQUAL;
+	 break;
+      case GL_GREATER:
+	 z |= R128_Z_TEST_GREATER;
+	 break;
+      case GL_NOTEQUAL:
+	 z |= R128_Z_TEST_NEQUAL;
+	 break;
+      }
+
+      t |=  R128_Z_ENABLE;
+   } else {
+      t &= ~R128_Z_ENABLE;
+   }
+
+   if ( ctx->Depth.Mask ) {
+      t |=  R128_Z_WRITE_ENABLE;
+   } else {
+      t &= ~R128_Z_WRITE_ENABLE;
+   }
+
+   if ( rmesa->setup.z_sten_cntl_c != z ) {
+      rmesa->setup.z_sten_cntl_c = z;
+      rmesa->dirty |= R128_UPLOAD_CONTEXT;
+   }
+   if ( rmesa->setup.tex_cntl_c != t ) {
+      rmesa->setup.tex_cntl_c = t;
+      rmesa->dirty |= R128_UPLOAD_CONTEXT;
+   }
+}
+
+static void r128DDDepthFunc( GLcontext *ctx, GLenum func )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+   rmesa->new_state |= R128_NEW_DEPTH;
+}
+
+static void r128DDDepthMask( GLcontext *ctx, GLboolean flag )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+   rmesa->new_state |= R128_NEW_DEPTH;
+}
+
+static void r128DDClearDepth( GLcontext *ctx, GLclampd d )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   switch ( rmesa->setup.z_sten_cntl_c &  R128_Z_PIX_WIDTH_MASK ) {
+   case R128_Z_PIX_WIDTH_16:
+      rmesa->ClearDepth = d * 0x0000ffff;
+      break;
+   case R128_Z_PIX_WIDTH_24:
+      rmesa->ClearDepth = d * 0x00ffffff;
+      break;
+   case R128_Z_PIX_WIDTH_32:
+      rmesa->ClearDepth = d * 0xffffffff;
+      break;
+   }
+}
+
+
+/* =============================================================
+ * Fog
+ */
+
+static void r128UpdateFogAttrib( GLcontext *ctx )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   GLuint t = rmesa->setup.tex_cntl_c;
+   GLubyte c[4];
+   GLuint col;
+
+   if ( ctx->Fog.Enabled ) {
+      t |=  R128_FOG_ENABLE;
+   } else {
+      t &= ~R128_FOG_ENABLE;
+   }
+
+   c[0] = FLOAT_TO_UBYTE( ctx->Fog.Color[0] );
+   c[1] = FLOAT_TO_UBYTE( ctx->Fog.Color[1] );
+   c[2] = FLOAT_TO_UBYTE( ctx->Fog.Color[2] );
+
+   col = r128PackColor( 4, c[0], c[1], c[2], 0 );
+
+   if ( rmesa->setup.fog_color_c != col ) {
+      rmesa->setup.fog_color_c = col;
+      rmesa->dirty |= R128_UPLOAD_CONTEXT;
+   }
+   if ( rmesa->setup.tex_cntl_c != t ) {
+      rmesa->setup.tex_cntl_c = t;
+      rmesa->dirty |= R128_UPLOAD_CONTEXT;
+   }
+}
+
+static void r128DDFogfv( GLcontext *ctx, GLenum pname, const GLfloat *param )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+   rmesa->new_state |= R128_NEW_FOG;
+}
+
+
+/* =============================================================
+ * Clipping
+ */
+
+static void r128UpdateClipping( GLcontext *ctx )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   if ( rmesa->driDrawable ) {
+      __DRIdrawablePrivate *drawable = rmesa->driDrawable;
+      int x1 = 0;
+      int y1 = 0;
+      int x2 = drawable->w - 1;
+      int y2 = drawable->h - 1;
+
+      if ( ctx->Scissor.Enabled ) {
+	 if ( ctx->Scissor.X > x1 ) {
+	    x1 = ctx->Scissor.X;
+	 }
+	 if ( drawable->h - ctx->Scissor.Y - ctx->Scissor.Height > y1 ) {
+	    y1 = drawable->h - ctx->Scissor.Y - ctx->Scissor.Height;
+	 }
+	 if ( ctx->Scissor.X + ctx->Scissor.Width - 1 < x2 ) {
+	    x2 = ctx->Scissor.X + ctx->Scissor.Width - 1;
+	 }
+	 if ( drawable->h - ctx->Scissor.Y - 1 < y2 ) {
+	    y2 = drawable->h - ctx->Scissor.Y - 1;
+	 }
+      }
+
+      x1 += drawable->x;
+      y1 += drawable->y;
+      x2 += drawable->x;
+      y2 += drawable->y;
+
+      rmesa->setup.sc_top_left_c     = ((y1 << 16) | x1);
+      rmesa->setup.sc_bottom_right_c = ((y2 << 16) | x2);
+
+      rmesa->dirty |= R128_UPLOAD_CONTEXT;
+   }
+}
+
+static void r128DDScissor( GLcontext *ctx,
+			   GLint x, GLint y, GLsizei w, GLsizei h )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+   rmesa->new_state |= R128_NEW_CLIP;
+}
+
+
+/* =============================================================
+ * Culling
+ */
+
+static void r128UpdateCull( GLcontext *ctx )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   GLuint f = rmesa->setup.pm4_vc_fpu_setup;
+
+   f &= ~R128_FRONT_DIR_MASK;
+
+   switch ( ctx->Polygon.FrontFace ) {
+   case GL_CW:
+      f |= R128_FRONT_DIR_CW;
+      break;
+   case GL_CCW:
+      f |= R128_FRONT_DIR_CCW;
+      break;
+   }
+
+   f |= R128_BACKFACE_SOLID | R128_FRONTFACE_SOLID;
+
+   if ( ctx->Polygon.CullFlag ) {
+      switch ( ctx->Polygon.CullFaceMode ) {
+      case GL_FRONT:
+	 f &= ~R128_FRONTFACE_SOLID;
+	 break;
+      case GL_BACK:
+	 f &= ~R128_BACKFACE_SOLID;
+	 break;
+      case GL_FRONT_AND_BACK:
+	 f &= ~(R128_BACKFACE_SOLID |
+		R128_FRONTFACE_SOLID);
+	 break;
+      }
+   }
+
+   if ( 1 || rmesa->setup.pm4_vc_fpu_setup != f ) {
+      rmesa->setup.pm4_vc_fpu_setup = f;
+      rmesa->dirty |= R128_UPLOAD_CONTEXT | R128_UPLOAD_SETUP;
+   }
+}
+
+static void r128DDCullFace( GLcontext *ctx, GLenum mode )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+   rmesa->new_state |= R128_NEW_CULL;
+}
+
+static void r128DDFrontFace( GLcontext *ctx, GLenum mode )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+   rmesa->new_state |= R128_NEW_CULL;
+}
+
+
+/* =============================================================
+ * Masks
+ */
+
+static void r128UpdateMasks( GLcontext *ctx )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   GLuint mask = r128PackColor( rmesa->r128Screen->cpp,
+				ctx->Color.ColorMask[RCOMP],
+				ctx->Color.ColorMask[GCOMP],
+				ctx->Color.ColorMask[BCOMP],
+				ctx->Color.ColorMask[ACOMP] );
+
+   if ( rmesa->setup.plane_3d_mask_c != mask ) {
+      rmesa->setup.plane_3d_mask_c = mask;
+      rmesa->dirty |= R128_UPLOAD_CONTEXT | R128_UPLOAD_MASKS;
+   }
+}
+
+static void r128DDColorMask( GLcontext *ctx,
+			     GLboolean r, GLboolean g,
+			     GLboolean b, GLboolean a )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+   rmesa->new_state |= R128_NEW_MASKS;
+}
+
+
+/* =============================================================
+ * Rendering attributes
+ *
+ * We really don't want to recalculate all this every time we bind a
+ * texture.  These things shouldn't change all that often, so it makes
+ * sense to break them out of the core texture state update routines.
+ */
+
+static void updateSpecularLighting( GLcontext *ctx )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   GLuint t = rmesa->setup.tex_cntl_c;
+
+   if ( ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR &&
+        ctx->Light.Enabled) {
+      /* XXX separate specular color just doesn't seem to work as it should.
+       * For now, we fall back to s/w rendering whenever separate specular
+       * is enabled.
+       */
+#if 0
+      if (ctx->Light.ShadeModel == GL_FLAT) {
+         /* R128 can't do flat-shaded separate specular */
+         t &= ~R128_SPEC_LIGHT_ENABLE;
+         FALLBACK( rmesa, R128_FALLBACK_SEP_SPECULAR, GL_TRUE );
+         /*printf("%s fallback  sep spec\n", __FUNCTION__);*/
+      }
+      else {
+         t |= R128_SPEC_LIGHT_ENABLE;
+         FALLBACK( rmesa, R128_FALLBACK_SEP_SPECULAR, GL_FALSE );
+         /*printf("%s enable sep spec\n", __FUNCTION__);*/
+      }
+#else
+      t &= ~R128_SPEC_LIGHT_ENABLE;
+      FALLBACK( rmesa, R128_FALLBACK_SEP_SPECULAR, GL_TRUE );
+      /*printf("%s fallback  sep spec\n", __FUNCTION__);*/
+#endif
+   }
+   else {
+      t &= ~R128_SPEC_LIGHT_ENABLE;
+      FALLBACK( rmesa, R128_FALLBACK_SEP_SPECULAR, GL_FALSE );
+      /*printf("%s disable sep spec\n", __FUNCTION__);*/
+   }
+
+   if ( rmesa->setup.tex_cntl_c != t ) {
+      rmesa->setup.tex_cntl_c = t;
+      rmesa->dirty |= R128_UPLOAD_CONTEXT;
+      rmesa->dirty |= R128_UPLOAD_SETUP;
+      rmesa->new_state |= R128_NEW_CONTEXT;
+   }
+}
+
+
+static void r128DDLightModelfv( GLcontext *ctx, GLenum pname,
+				const GLfloat *param )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   if ( pname == GL_LIGHT_MODEL_COLOR_CONTROL ) {
+      FLUSH_BATCH( rmesa );
+      updateSpecularLighting(ctx);
+   }
+}
+
+static void r128DDShadeModel( GLcontext *ctx, GLenum mode )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   GLuint s = rmesa->setup.pm4_vc_fpu_setup;
+
+   s &= ~R128_FPU_COLOR_MASK;
+
+   switch ( mode ) {
+   case GL_FLAT:
+      s |= R128_FPU_COLOR_FLAT;
+      break;
+   case GL_SMOOTH:
+      s |= R128_FPU_COLOR_GOURAUD;
+      break;
+   default:
+      return;
+   }
+
+   updateSpecularLighting(ctx);
+
+   if ( rmesa->setup.pm4_vc_fpu_setup != s ) {
+      FLUSH_BATCH( rmesa );
+      rmesa->setup.pm4_vc_fpu_setup = s;
+
+      rmesa->new_state |= R128_NEW_CONTEXT;
+      rmesa->dirty |= R128_UPLOAD_SETUP;
+   }
+}
+
+
+/* =============================================================
+ * Window position
+ */
+
+void r128UpdateWindow( GLcontext *ctx )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   int x = rmesa->driDrawable->x;
+   int y = rmesa->driDrawable->y;
+
+   rmesa->setup.window_xy_offset = ((y << R128_WINDOW_Y_SHIFT) |
+				    (x << R128_WINDOW_X_SHIFT));
+
+   rmesa->dirty |= R128_UPLOAD_CONTEXT | R128_UPLOAD_WINDOW;
+}
+
+/* =============================================================
+ * Viewport
+ */
+
+
+static void r128CalcViewport( GLcontext *ctx )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   const GLfloat *v = ctx->Viewport._WindowMap.m;
+   GLfloat *m = rmesa->hw_viewport;
+
+   /* See also r128_translate_vertex.
+    */
+   m[MAT_SX] =   v[MAT_SX];
+   m[MAT_TX] =   v[MAT_TX] + SUBPIXEL_X;
+   m[MAT_SY] = - v[MAT_SY];
+   m[MAT_TY] = - v[MAT_TY] + rmesa->driDrawable->h + SUBPIXEL_Y;
+   m[MAT_SZ] =   v[MAT_SZ] * rmesa->depth_scale;
+   m[MAT_TZ] =   v[MAT_TZ] * rmesa->depth_scale;
+}
+
+static void r128Viewport( GLcontext *ctx,
+			  GLint x, GLint y,
+			  GLsizei width, GLsizei height )
+{
+   r128CalcViewport( ctx );
+}
+
+static void r128DepthRange( GLcontext *ctx,
+			    GLclampd nearval, GLclampd farval )
+{
+   r128CalcViewport( ctx );
+}
+
+
+/* =============================================================
+ * Miscellaneous
+ */
+
+static void r128DDClearColor( GLcontext *ctx,
+			      const GLfloat color[4] )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   GLubyte c[4];
+
+   CLAMPED_FLOAT_TO_UBYTE(c[0], color[0]);
+   CLAMPED_FLOAT_TO_UBYTE(c[1], color[1]);
+   CLAMPED_FLOAT_TO_UBYTE(c[2], color[2]);
+   CLAMPED_FLOAT_TO_UBYTE(c[3], color[3]);
+
+   rmesa->ClearColor = r128PackColor( rmesa->r128Screen->cpp,
+				      c[0], c[1], c[2], c[3] );
+}
+
+static void r128DDLogicOpCode( GLcontext *ctx, GLenum opcode )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   if ( ctx->Color.ColorLogicOpEnabled ) {
+      FLUSH_BATCH( rmesa );
+
+      FALLBACK( rmesa, R128_FALLBACK_LOGICOP, opcode != GL_COPY );
+   }
+}
+
+static void r128DDDrawBuffer( GLcontext *ctx, GLenum mode )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   FLUSH_BATCH( rmesa );
+
+   /*
+    * _DrawDestMask is easier to cope with than <mode>.
+    */
+   switch ( ctx->Color._DrawDestMask ) {
+   case FRONT_LEFT_BIT:
+      FALLBACK( rmesa, R128_FALLBACK_DRAW_BUFFER, GL_FALSE );
+      break;
+   case BACK_LEFT_BIT:
+      FALLBACK( rmesa, R128_FALLBACK_DRAW_BUFFER, GL_FALSE );
+      break;
+   default:
+      /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
+      FALLBACK( rmesa, R128_FALLBACK_DRAW_BUFFER, GL_TRUE );
+      break;
+   }
+
+   /* We want to update the s/w rast state too so that r200SetBuffer()
+    * gets called.
+    */
+   _swrast_DrawBuffer(ctx, mode);
+
+   rmesa->setup.dst_pitch_offset_c = (((rmesa->drawPitch/8) << 21) |
+                                      (rmesa->drawOffset >> 5));
+   rmesa->new_state |= R128_NEW_WINDOW;
+}
+
+static void r128DDReadBuffer( GLcontext *ctx, GLenum mode )
+{
+   /* nothing, until we implement h/w glRead/CopyPixels or CopyTexImage */
+}
+
+
+/* =============================================================
+ * Polygon stipple
+ */
+
+static void r128DDPolygonStipple( GLcontext *ctx, const GLubyte *mask )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   GLuint stipple[32], i;
+   drmR128Stipple stippleRec;
+
+   for (i = 0; i < 32; i++) {
+      stipple[31 - i] = ((mask[i*4+0] << 24) |
+                         (mask[i*4+1] << 16) |
+                         (mask[i*4+2] << 8)  |
+                         (mask[i*4+3]));
+   }
+
+   FLUSH_BATCH( rmesa );
+   LOCK_HARDWARE( rmesa );
+
+   stippleRec.mask = stipple;
+   drmCommandWrite( rmesa->driFd, DRM_R128_STIPPLE, 
+                    &stippleRec, sizeof(drmR128Stipple) );
+
+   UNLOCK_HARDWARE( rmesa );
+
+   rmesa->new_state |= R128_NEW_CONTEXT;
+   rmesa->dirty |= R128_UPLOAD_CONTEXT;
+}
+
+
+/* =============================================================
+ * Render mode
+ */
+
+static void r128DDRenderMode( GLcontext *ctx, GLenum mode )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   FALLBACK( rmesa, R128_FALLBACK_RENDER_MODE, (mode != GL_RENDER) );
+}
+
+
+
+/* =============================================================
+ * State enable/disable
+ */
+
+static void r128DDEnable( GLcontext *ctx, GLenum cap, GLboolean state )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+   if ( R128_DEBUG & DEBUG_VERBOSE_API ) {
+      fprintf( stderr, "%s( %s = %s )\n",
+	       __FUNCTION__, _mesa_lookup_enum_by_nr( cap ),
+	       state ? "GL_TRUE" : "GL_FALSE" );
+   }
+
+   switch ( cap ) {
+   case GL_ALPHA_TEST:
+      FLUSH_BATCH( rmesa );
+      rmesa->new_state |= R128_NEW_ALPHA;
+      break;
+
+   case GL_BLEND:
+      FLUSH_BATCH( rmesa );
+      rmesa->new_state |= R128_NEW_ALPHA;
+
+      /* For some reason enable(GL_BLEND) affects ColorLogicOpEnabled.
+       */
+      FALLBACK( rmesa, R128_FALLBACK_LOGICOP,
+		(ctx->Color.ColorLogicOpEnabled &&
+		 ctx->Color.LogicOp != GL_COPY));
+      break;
+
+   case GL_CULL_FACE:
+      FLUSH_BATCH( rmesa );
+      rmesa->new_state |= R128_NEW_CULL;
+      break;
+
+   case GL_DEPTH_TEST:
+      FLUSH_BATCH( rmesa );
+      rmesa->new_state |= R128_NEW_DEPTH;
+      break;
+
+   case GL_DITHER:
+      do {
+	 GLuint t = rmesa->setup.tex_cntl_c;
+	 FLUSH_BATCH( rmesa );
+
+	 if ( ctx->Color.DitherFlag ) {
+	    t |=  R128_DITHER_ENABLE;
+	 } else {
+	    t &= ~R128_DITHER_ENABLE;
+	 }
+
+	 if ( rmesa->setup.tex_cntl_c != t ) {
+	    rmesa->setup.tex_cntl_c = t;
+	    rmesa->dirty |= R128_UPLOAD_CONTEXT;
+	 }
+      } while (0);
+      break;
+
+   case GL_FOG:
+      FLUSH_BATCH( rmesa );
+      rmesa->new_state |= R128_NEW_FOG;
+      break;
+
+   case GL_COLOR_LOGIC_OP:
+      FLUSH_BATCH( rmesa );
+      FALLBACK( rmesa, R128_FALLBACK_LOGICOP,
+		state && ctx->Color.LogicOp != GL_COPY );
+      break;
+
+   case GL_LIGHTING:
+      updateSpecularLighting(ctx);
+      break;
+
+   case GL_SCISSOR_TEST:
+      FLUSH_BATCH( rmesa );
+      rmesa->scissor = state;
+      rmesa->new_state |= R128_NEW_CLIP;
+      break;
+
+   case GL_STENCIL_TEST:
+      FLUSH_BATCH( rmesa );
+      FALLBACK( rmesa, R128_FALLBACK_STENCIL, state );
+      break;
+
+   case GL_TEXTURE_1D:
+   case GL_TEXTURE_2D:
+   case GL_TEXTURE_3D:
+      FLUSH_BATCH( rmesa );
+      break;
+
+   case GL_POLYGON_STIPPLE:
+      if ( rmesa->render_primitive == GL_TRIANGLES ) {
+	 FLUSH_BATCH( rmesa );
+	 rmesa->setup.dp_gui_master_cntl_c &= ~R128_GMC_BRUSH_NONE;
+	 if ( state ) {
+	    rmesa->setup.dp_gui_master_cntl_c |=
+	       R128_GMC_BRUSH_32x32_MONO_FG_LA;
+	 } else {
+	    rmesa->setup.dp_gui_master_cntl_c |=
+	       R128_GMC_BRUSH_SOLID_COLOR;
+	 }
+	 rmesa->new_state |= R128_NEW_CONTEXT;
+	 rmesa->dirty |= R128_UPLOAD_CONTEXT;
+      }
+      break;
+
+   default:
+      return;
+   }
+}
+
+
+/* =============================================================
+ * State initialization, management
+ */
+
+static void r128DDPrintDirty( const char *msg, GLuint state )
+{
+   fprintf( stderr,
+	    "%s: (0x%x) %s%s%s%s%s%s%s%s%s\n",
+	    msg,
+	    state,
+	    (state & R128_UPLOAD_CORE)		? "core, " : "",
+	    (state & R128_UPLOAD_CONTEXT)	? "context, " : "",
+	    (state & R128_UPLOAD_SETUP)		? "setup, " : "",
+	    (state & R128_UPLOAD_TEX0)		? "tex0, " : "",
+	    (state & R128_UPLOAD_TEX1)		? "tex1, " : "",
+	    (state & R128_UPLOAD_MASKS)		? "masks, " : "",
+	    (state & R128_UPLOAD_WINDOW)	? "window, " : "",
+	    (state & R128_UPLOAD_CLIPRECTS)	? "cliprects, " : "",
+	    (state & R128_REQUIRE_QUIESCENCE)	? "quiescence, " : "" );
+}
+
+/*
+ * Load the current context's state into the hardware.
+ *
+ * NOTE: Be VERY careful about ensuring the context state is marked for
+ * upload, the only place it shouldn't be uploaded is when the setup
+ * state has changed in ReducedPrimitiveChange as this comes right after
+ * a state update.
+ *
+ * Blits of any type should always upload the context and masks after
+ * they are done.
+ */
+void r128EmitHwStateLocked( r128ContextPtr rmesa )
+{
+   R128SAREAPrivPtr sarea = rmesa->sarea;
+   r128_context_regs_t *regs = &(rmesa->setup);
+   const r128TexObjPtr t0 = rmesa->CurrentTexObj[0];
+   const r128TexObjPtr t1 = rmesa->CurrentTexObj[1];
+
+   if ( R128_DEBUG & DEBUG_VERBOSE_MSG ) {
+      r128DDPrintDirty( "r128EmitHwStateLocked", rmesa->dirty );
+   }
+
+   if ( rmesa->dirty & (R128_UPLOAD_CONTEXT |
+			R128_UPLOAD_SETUP |
+			R128_UPLOAD_MASKS |
+			R128_UPLOAD_WINDOW |
+			R128_UPLOAD_CORE) ) {
+      memcpy( &sarea->ContextState, regs, sizeof(sarea->ContextState) );
+   }
+
+   if ( (rmesa->dirty & R128_UPLOAD_TEX0) && t0 ) {
+      r128_texture_regs_t *tex = &sarea->TexState[0];
+
+      tex->tex_cntl		= t0->setup.tex_cntl;
+      tex->tex_combine_cntl	= rmesa->tex_combine[0];
+      tex->tex_size_pitch	= t0->setup.tex_size_pitch;
+      memcpy( &tex->tex_offset[0], &t0->setup.tex_offset[0],
+	      sizeof(tex->tex_offset ) );
+      tex->tex_border_color	= t0->setup.tex_border_color;
+   }
+
+   if ( (rmesa->dirty & R128_UPLOAD_TEX1) && t1 ) {
+      r128_texture_regs_t *tex = &sarea->TexState[1];
+
+      tex->tex_cntl		= t1->setup.tex_cntl;
+      tex->tex_combine_cntl	= rmesa->tex_combine[1];
+      tex->tex_size_pitch	= t1->setup.tex_size_pitch;
+      memcpy( &tex->tex_offset[0], &t1->setup.tex_offset[0],
+	      sizeof(tex->tex_offset ) );
+      tex->tex_border_color	= t1->setup.tex_border_color;
+   }
+
+   sarea->vertsize = rmesa->vertex_size;
+   sarea->vc_format = rmesa->vertex_format;
+
+   /* Turn off the texture cache flushing */
+   rmesa->setup.tex_cntl_c &= ~R128_TEX_CACHE_FLUSH;
+
+   sarea->dirty |= rmesa->dirty;
+   rmesa->dirty &= R128_UPLOAD_CLIPRECTS;
+}
+
+static void r128DDPrintState( const char *msg, GLuint flags )
+{
+   fprintf( stderr,
+	    "%s: (0x%x) %s%s%s%s%s%s%s%s\n",
+	    msg,
+	    flags,
+	    (flags & R128_NEW_CONTEXT)	? "context, " : "",
+	    (flags & R128_NEW_ALPHA)	? "alpha, " : "",
+	    (flags & R128_NEW_DEPTH)	? "depth, " : "",
+	    (flags & R128_NEW_FOG)	? "fog, " : "",
+	    (flags & R128_NEW_CLIP)	? "clip, " : "",
+	    (flags & R128_NEW_CULL)	? "cull, " : "",
+	    (flags & R128_NEW_MASKS)	? "masks, " : "",
+	    (flags & R128_NEW_WINDOW)	? "window, " : "" );
+}
+
+void r128DDUpdateHWState( GLcontext *ctx )
+{
+   r128ContextPtr rmesa = R128_CONTEXT(ctx);
+   int new_state = rmesa->new_state;
+
+   if ( new_state || rmesa->NewGLState & _NEW_TEXTURE )
+   {
+      FLUSH_BATCH( rmesa );
+
+      rmesa->new_state = 0;
+
+      if ( R128_DEBUG & DEBUG_VERBOSE_MSG )
+	 r128DDPrintState( "r128UpdateHwState", new_state );
+
+      /* Update the various parts of the context's state.
+       */
+      if ( new_state & R128_NEW_ALPHA )
+	 r128UpdateAlphaMode( ctx );
+
+      if ( new_state & R128_NEW_DEPTH )
+	 r128UpdateZMode( ctx );
+
+      if ( new_state & R128_NEW_FOG )
+	 r128UpdateFogAttrib( ctx );
+
+      if ( new_state & R128_NEW_CLIP )
+	 r128UpdateClipping( ctx );
+
+      if ( new_state & R128_NEW_CULL )
+	 r128UpdateCull( ctx );
+
+      if ( new_state & R128_NEW_MASKS )
+	 r128UpdateMasks( ctx );
+
+      if ( new_state & R128_NEW_WINDOW )
+	 r128UpdateWindow( ctx );
+
+      if ( rmesa->NewGLState & _NEW_TEXTURE ) {
+	 r128UpdateTextureState( ctx );
+      }
+   }
+}
+
+
+static void r128DDInvalidateState( 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 );
+   R128_CONTEXT(ctx)->NewGLState |= new_state;
+}
+
+
+
+/* Initialize the context's hardware state.
+ */
+void r128DDInitState( r128ContextPtr rmesa )
+{
+   int dst_bpp, depth_bpp;
+
+   switch ( rmesa->r128Screen->cpp ) {
+   case 2:
+      dst_bpp = R128_GMC_DST_16BPP;
+      break;
+   case 4:
+      dst_bpp = R128_GMC_DST_32BPP;
+      break;
+   default:
+      fprintf( stderr, "Error: Unsupported pixel depth... exiting\n" );
+      exit( -1 );
+   }
+
+   rmesa->ClearColor = 0x00000000;
+
+   switch ( rmesa->glCtx->Visual.depthBits ) {
+   case 16:
+      rmesa->ClearDepth = 0x0000ffff;
+      depth_bpp = R128_Z_PIX_WIDTH_16;
+      rmesa->depth_scale = 1.0 / (GLfloat)0xffff;
+      break;
+   case 24:
+      rmesa->ClearDepth = 0x00ffffff;
+      depth_bpp = R128_Z_PIX_WIDTH_24;
+      rmesa->depth_scale = 1.0 / (GLfloat)0xffffff;
+      break;
+   default:
+      fprintf( stderr, "Error: Unsupported depth %d... exiting\n",
+	       rmesa->glCtx->Visual.depthBits );
+      exit( -1 );
+   }
+
+   rmesa->Fallback = 0;
+
+   if ( rmesa->glCtx->Visual.doubleBufferMode && rmesa->sarea->pfCurrentPage == 0 ) {
+      rmesa->drawOffset = rmesa->readOffset = rmesa->r128Screen->backOffset;
+      rmesa->drawPitch  = rmesa->readPitch  = rmesa->r128Screen->backPitch;
+   } else {
+      rmesa->drawOffset = rmesa->readOffset = rmesa->r128Screen->frontOffset;
+      rmesa->drawPitch  = rmesa->readPitch  = rmesa->r128Screen->frontPitch;
+   }
+
+   /* Harware state:
+    */
+   rmesa->setup.dst_pitch_offset_c = (((rmesa->drawPitch/8) << 21) |
+				      (rmesa->drawOffset >> 5));
+
+   rmesa->setup.dp_gui_master_cntl_c = (R128_GMC_DST_PITCH_OFFSET_CNTL |
+					R128_GMC_DST_CLIPPING |
+					R128_GMC_BRUSH_SOLID_COLOR |
+					dst_bpp |
+					R128_GMC_SRC_DATATYPE_COLOR |
+					R128_GMC_BYTE_MSB_TO_LSB |
+					R128_GMC_CONVERSION_TEMP_6500 |
+					R128_ROP3_S |
+					R128_DP_SRC_SOURCE_MEMORY |
+					R128_GMC_3D_FCN_EN |
+					R128_GMC_CLR_CMP_CNTL_DIS |
+					R128_GMC_AUX_CLIP_DIS |
+					R128_GMC_WR_MSK_DIS);
+
+   rmesa->setup.sc_top_left_c     = 0x00000000;
+   rmesa->setup.sc_bottom_right_c = 0x1fff1fff;
+
+   rmesa->setup.z_offset_c = rmesa->r128Screen->depthOffset;
+   rmesa->setup.z_pitch_c = ((rmesa->r128Screen->depthPitch >> 3) |
+			     R128_Z_TILE);
+
+   rmesa->setup.z_sten_cntl_c = (depth_bpp |
+				 R128_Z_TEST_LESS |
+				 R128_STENCIL_TEST_ALWAYS |
+				 R128_STENCIL_S_FAIL_KEEP |
+				 R128_STENCIL_ZPASS_KEEP |
+				 R128_STENCIL_ZFAIL_KEEP);
+
+   rmesa->setup.tex_cntl_c = (R128_Z_WRITE_ENABLE |
+			      R128_SHADE_ENABLE |
+			      R128_DITHER_ENABLE |
+			      R128_ALPHA_IN_TEX_COMPLETE_A |
+			      R128_LIGHT_DIS |
+			      R128_ALPHA_LIGHT_DIS |
+			      R128_TEX_CACHE_FLUSH |
+			      (0x3f << R128_LOD_BIAS_SHIFT));
+
+   rmesa->setup.misc_3d_state_cntl_reg = (R128_MISC_SCALE_3D_TEXMAP_SHADE |
+					  R128_MISC_SCALE_PIX_REPLICATE |
+					  R128_ALPHA_COMB_ADD_CLAMP |
+					  R128_FOG_VERTEX |
+					  R128_ALPHA_BLEND_SRC_ONE |
+					  R128_ALPHA_BLEND_DST_ZERO |
+					  R128_ALPHA_TEST_ALWAYS);
+
+   rmesa->setup.texture_clr_cmp_clr_c = 0x00000000;
+   rmesa->setup.texture_clr_cmp_msk_c = 0xffffffff;
+
+   rmesa->setup.fog_color_c = 0x00000000;
+
+   rmesa->setup.pm4_vc_fpu_setup = (R128_FRONT_DIR_CCW |
+				    R128_BACKFACE_SOLID |
+				    R128_FRONTFACE_SOLID |
+				    R128_FPU_COLOR_GOURAUD |
+				    R128_FPU_SUB_PIX_4BITS |
+				    R128_FPU_MODE_3D |
+				    R128_TRAP_BITS_DISABLE |
+				    R128_XFACTOR_2 |
+				    R128_YFACTOR_2 |
+				    R128_FLAT_SHADE_VERTEX_OGL |
+				    R128_FPU_ROUND_TRUNCATE |
+				    R128_WM_SEL_8DW);
+
+   rmesa->setup.setup_cntl = (R128_COLOR_GOURAUD |
+			      R128_PRIM_TYPE_TRI |
+			      R128_TEXTURE_ST_MULT_W |
+			      R128_STARTING_VERTEX_1 |
+			      R128_ENDING_VERTEX_3 |
+			      R128_SU_POLY_LINE_NOT_LAST |
+			      R128_SUB_PIX_4BITS);
+
+   rmesa->setup.tex_size_pitch_c = 0x00000000;
+   rmesa->setup.constant_color_c = 0x00ffffff;
+
+   rmesa->setup.dp_write_mask   = 0xffffffff;
+   rmesa->setup.sten_ref_mask_c = 0xffff0000;
+   rmesa->setup.plane_3d_mask_c = 0xffffffff;
+
+   rmesa->setup.window_xy_offset = 0x00000000;
+
+   rmesa->setup.scale_3d_cntl = (R128_SCALE_DITHER_TABLE |
+				 R128_TEX_CACHE_SIZE_FULL |
+				 R128_DITHER_INIT_RESET |
+				 R128_SCALE_3D_TEXMAP_SHADE |
+				 R128_SCALE_PIX_REPLICATE |
+				 R128_ALPHA_COMB_ADD_CLAMP |
+				 R128_FOG_VERTEX |
+				 R128_ALPHA_BLEND_SRC_ONE |
+				 R128_ALPHA_BLEND_DST_ZERO |
+				 R128_ALPHA_TEST_ALWAYS |
+				 R128_COMPOSITE_SHADOW_CMP_EQUAL |
+				 R128_TEX_MAP_ALPHA_IN_TEXTURE |
+				 R128_TEX_CACHE_LINE_SIZE_4QW);
+
+   rmesa->new_state = R128_NEW_ALL;
+}
+
+/* Initialize the driver's state functions.
+ */
+void r128DDInitStateFuncs( GLcontext *ctx )
+{
+   ctx->Driver.UpdateState		= r128DDInvalidateState;
+
+   ctx->Driver.ClearIndex		= NULL;
+   ctx->Driver.ClearColor		= r128DDClearColor;
+   ctx->Driver.DrawBuffer		= r128DDDrawBuffer;
+   ctx->Driver.ReadBuffer		= r128DDReadBuffer;
+
+   ctx->Driver.IndexMask		= NULL;
+   ctx->Driver.ColorMask		= r128DDColorMask;
+   ctx->Driver.AlphaFunc		= r128DDAlphaFunc;
+   ctx->Driver.BlendEquation		= r128DDBlendEquation;
+   ctx->Driver.BlendFunc		= r128DDBlendFunc;
+   ctx->Driver.BlendFuncSeparate	= r128DDBlendFuncSeparate;
+   ctx->Driver.ClearDepth		= r128DDClearDepth;
+   ctx->Driver.CullFace			= r128DDCullFace;
+   ctx->Driver.FrontFace		= r128DDFrontFace;
+   ctx->Driver.DepthFunc		= r128DDDepthFunc;
+   ctx->Driver.DepthMask		= r128DDDepthMask;
+   ctx->Driver.Enable			= r128DDEnable;
+   ctx->Driver.Fogfv			= r128DDFogfv;
+   ctx->Driver.Hint			= NULL;
+   ctx->Driver.Lightfv			= NULL;
+   ctx->Driver.LightModelfv		= r128DDLightModelfv;
+   ctx->Driver.LogicOpcode		= r128DDLogicOpCode;
+   ctx->Driver.PolygonMode		= NULL;
+   ctx->Driver.PolygonStipple		= r128DDPolygonStipple;
+   ctx->Driver.RenderMode		= r128DDRenderMode;
+   ctx->Driver.Scissor			= r128DDScissor;
+   ctx->Driver.ShadeModel		= r128DDShadeModel;
+   ctx->Driver.ClearStencil		= NULL;
+   ctx->Driver.StencilFunc		= NULL;
+   ctx->Driver.StencilMask		= NULL;
+   ctx->Driver.StencilOp		= NULL;
+
+   ctx->Driver.DepthRange               = r128DepthRange;
+   ctx->Driver.Viewport                 = r128Viewport;
+
+   /* 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;
+
+   /* 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;
+}