Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 668 insertions, 0 deletions

diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/i915/i915_texprog.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/i915/i915_texprog.c
new file mode 100644
index 000000000..3eaf53d7d
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/i915/i915_texprog.c
@@ -0,0 +1,668 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, 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 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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#include <strings.h>
+
+#include "glheader.h"
+#include "macros.h"
+#include "enums.h"
+
+#include "tnl/t_context.h"
+#include "intel_batchbuffer.h"
+
+#include "i915_reg.h"
+#include "i915_context.h"
+#include "i915_program.h"
+
+static GLuint translate_tex_src_bit( struct i915_fragment_program *p,
+				     GLubyte bit )
+{
+   switch (bit) {
+   case TEXTURE_1D_BIT:   return D0_SAMPLE_TYPE_2D;
+   case TEXTURE_2D_BIT:   return D0_SAMPLE_TYPE_2D;
+   case TEXTURE_RECT_BIT: return D0_SAMPLE_TYPE_2D;
+   case TEXTURE_3D_BIT:   return D0_SAMPLE_TYPE_VOLUME;
+   case TEXTURE_CUBE_BIT: return D0_SAMPLE_TYPE_CUBE;
+   default: i915_program_error(p, "TexSrcBit"); return 0;
+   }
+}
+
+static GLuint get_source( struct i915_fragment_program *p, 
+			  GLenum src, GLuint unit )
+{
+   switch (src) {
+   case GL_TEXTURE: 
+      if (p->src_texture == UREG_BAD) {
+
+	 /* TODO: Use D0_CHANNEL_XY where possible.
+	  */
+	 GLuint dim = translate_tex_src_bit( p, p->ctx->Texture.Unit[unit]._ReallyEnabled);
+	 GLuint sampler = i915_emit_decl(p, REG_TYPE_S, unit, dim);
+	 GLuint texcoord = i915_emit_decl(p, REG_TYPE_T, unit, D0_CHANNEL_ALL);
+	 GLuint tmp = i915_get_temp( p );
+	 GLuint op = T0_TEXLD;
+
+	 if (p->VB->TexCoordPtr[unit]->size == 4)
+	    op = T0_TEXLDP;
+
+	 p->src_texture = i915_emit_texld( p, tmp, A0_DEST_CHANNEL_ALL, 
+					  sampler, texcoord, op );
+      }
+
+      return p->src_texture;
+
+      /* Crossbar: */
+   case GL_TEXTURE0:
+   case GL_TEXTURE1:
+   case GL_TEXTURE2:
+   case GL_TEXTURE3:
+   case GL_TEXTURE4:
+   case GL_TEXTURE5:
+   case GL_TEXTURE6:
+   case GL_TEXTURE7: {
+      return UREG_BAD;
+   }
+
+   case GL_CONSTANT:
+      return i915_emit_const4fv( p, p->ctx->Texture.Unit[unit].EnvColor );
+   case GL_PRIMARY_COLOR:
+      return i915_emit_decl(p, REG_TYPE_T, T_DIFFUSE, D0_CHANNEL_ALL);
+   case GL_PREVIOUS:
+   default: 
+      i915_emit_decl(p, 
+		GET_UREG_TYPE(p->src_previous),
+		GET_UREG_NR(p->src_previous), D0_CHANNEL_ALL); 
+      return p->src_previous;
+   }
+}
+			
+
+static GLuint emit_combine_source( struct i915_fragment_program *p, 
+				   GLuint mask,
+				   GLuint unit,
+				   GLenum source, 
+				   GLenum operand )
+{
+   GLuint arg, src;
+
+   src = get_source(p, source, unit);
+
+   switch (operand) {
+   case GL_ONE_MINUS_SRC_COLOR: 
+      /* Get unused tmp,
+       * Emit tmp = 1.0 + arg.-x-y-z-w
+       */
+      arg = i915_get_temp( p );
+      return i915_emit_arith( p, A0_ADD, arg, mask, 0,
+		  swizzle(src, ONE, ONE, ONE, ONE ),
+		  negate(src, 1,1,1,1), 0);
+
+   case GL_SRC_ALPHA: 
+      if (mask == A0_DEST_CHANNEL_W)
+	 return src;
+      else
+	 return swizzle( src, W, W, W, W );
+   case GL_ONE_MINUS_SRC_ALPHA: 
+      /* Get unused tmp,
+       * Emit tmp = 1.0 + arg.-w-w-w-w
+       */
+      arg = i915_get_temp( p );
+      return i915_emit_arith( p, A0_ADD, arg, mask, 0,
+			 swizzle(src, ONE, ONE, ONE, ONE ),
+			 negate( swizzle(src,W,W,W,W), 1,1,1,1), 0);
+   case GL_SRC_COLOR: 
+   default:
+      return src;
+   }
+}
+
+
+
+static int nr_args( GLenum mode )
+{
+   switch (mode) {
+   case GL_REPLACE: return 1; 
+   case GL_MODULATE: return 2;
+   case GL_ADD: return 2;
+   case GL_ADD_SIGNED: return 2;
+   case GL_INTERPOLATE:	return 3;
+   case GL_SUBTRACT: return 2;
+   case GL_DOT3_RGB_EXT: return 2;
+   case GL_DOT3_RGBA_EXT: return 2;
+   case GL_DOT3_RGB: return 2;
+   case GL_DOT3_RGBA: return 2;
+   default: return 0;
+   }
+}
+
+
+static GLboolean args_match( struct gl_texture_unit *texUnit )
+{
+   int i, nr = nr_args(texUnit->Combine.ModeRGB);
+
+   for (i = 0 ; i < nr ; i++) {
+      if (texUnit->Combine.SourceA[i] != texUnit->Combine.SourceRGB[i]) 
+	 return GL_FALSE;
+
+      switch(texUnit->Combine.OperandA[i]) {
+      case GL_SRC_ALPHA: 
+	 switch(texUnit->Combine.OperandRGB[i]) {
+	 case GL_SRC_COLOR: 
+	 case GL_SRC_ALPHA: 
+	    break;
+	 default:
+	    return GL_FALSE;
+	 }
+	 break;
+      case GL_ONE_MINUS_SRC_ALPHA: 
+	 switch(texUnit->Combine.OperandRGB[i]) {
+	 case GL_ONE_MINUS_SRC_COLOR: 
+	 case GL_ONE_MINUS_SRC_ALPHA: 
+	    break;
+	 default:
+	    return GL_FALSE;
+	 }
+	 break;
+      default: 
+	 return GL_FALSE;	/* impossible */
+      }
+   }
+
+   return GL_TRUE;
+}
+
+
+static GLuint emit_combine( struct i915_fragment_program *p,
+			    GLuint dest,
+			    GLuint mask,
+			    GLuint saturate,
+			    GLuint unit,
+			    GLenum mode,
+			    const GLenum *source,
+			    const GLenum *operand)
+{
+   int tmp, src[3], nr = nr_args(mode);
+   int i;
+
+   for (i = 0; i < nr; i++)
+      src[i] = emit_combine_source( p, mask, unit, source[i], operand[i] );
+
+   switch (mode) {
+   case GL_REPLACE: 
+      if (mask == A0_DEST_CHANNEL_ALL && !saturate)
+	 return src[0];
+      else
+	 return i915_emit_arith( p, A0_MOV, dest, mask, saturate, src[0], 0, 0 );
+   case GL_MODULATE: 
+      return i915_emit_arith( p, A0_MUL, dest, mask, saturate,
+			     src[0], src[1], 0 );
+   case GL_ADD: 
+      return i915_emit_arith( p, A0_ADD, dest, mask, saturate, 
+			     src[0], src[1], 0 );
+   case GL_ADD_SIGNED:
+      /* tmp = arg0 + arg1
+       * result = tmp + -.5
+       */
+      tmp = i915_emit_const1f(p, .5);
+      tmp = negate(swizzle(tmp,X,X,X,X),1,1,1,1);
+      i915_emit_arith( p, A0_ADD, dest, mask, 0, src[0], src[1], 0 );
+      i915_emit_arith( p, A0_ADD, dest, mask, saturate, dest, tmp, 0 );
+      return dest;
+   case GL_INTERPOLATE:		/* TWO INSTRUCTIONS */
+      /* Arg0 * (Arg2) + Arg1 * (1-Arg2)
+       *
+       * Arg0*Arg2 + Arg1 - Arg1Arg2 
+       *
+       * tmp = Arg0*Arg2 + Arg1, 
+       * result = (-Arg1)Arg2 + tmp 
+       */
+      tmp = i915_get_temp( p );
+      i915_emit_arith( p, A0_MAD, tmp, mask, 0, src[0], src[2], src[1] );
+      i915_emit_arith( p, A0_MAD, dest, mask, saturate, 
+		      negate(src[1], 1,1,1,1), src[2], tmp );
+      return dest;
+   case GL_SUBTRACT: 
+      /* negate src[1] */
+      return i915_emit_arith( p, A0_ADD, dest, mask, saturate, src[0],
+			 negate(src[1],1,1,1,1), 0 );
+
+   case GL_DOT3_RGBA:
+   case GL_DOT3_RGBA_EXT: 
+   case GL_DOT3_RGB_EXT:
+   case GL_DOT3_RGB: {
+      GLuint tmp0 = i915_get_temp( p );
+      GLuint tmp1 = i915_get_temp( p );
+      GLuint neg1 = negate(swizzle(i915_emit_const1f(p, 1),X,X,X,X), 1,1,1,1);
+      GLuint two = swizzle(i915_emit_const1f(p, 2),X,X,X,X);
+      i915_emit_arith( p, A0_MAD, tmp0, A0_DEST_CHANNEL_ALL, 0, 
+		      two, src[0], neg1);
+      if (src[0] == src[1])
+	 tmp1 = tmp0;
+      else
+	 i915_emit_arith( p, A0_MAD, tmp1, A0_DEST_CHANNEL_ALL, 0, 
+			 two, src[1], neg1);
+      i915_emit_arith( p, A0_DP3, dest, mask, saturate, tmp0, tmp1, 0);
+      return dest;
+   }
+
+   default: 
+      return src[0];
+   }
+}
+
+static GLuint get_dest( struct i915_fragment_program *p, int unit )
+{
+   if (p->ctx->_TriangleCaps & DD_SEPARATE_SPECULAR)
+      return i915_get_temp( p );
+   else if (unit != p->last_tex_stage)
+      return i915_get_temp( p );
+   else
+      return UREG(REG_TYPE_OC, 0);
+}
+      
+
+
+static GLuint emit_texenv( struct i915_fragment_program *p, int unit )
+{
+   struct gl_texture_unit *texUnit = &p->ctx->Texture.Unit[unit];
+   GLenum envMode = texUnit->EnvMode;
+   struct gl_texture_object *tObj = texUnit->_Current;
+   GLenum format = tObj->Image[0][tObj->BaseLevel]->Format;
+   GLuint saturate = unit < p->last_tex_stage ? A0_DEST_SATURATE : 0;
+
+   switch(envMode) {
+   case GL_BLEND: {
+      const int cf = get_source(p, GL_PREVIOUS, unit);
+      const int cc = get_source(p, GL_CONSTANT, unit);
+      const int cs = get_source(p, GL_TEXTURE, unit);
+      const int out = get_dest(p, unit);
+
+      if (format == GL_INTENSITY) {
+	 /* cv = cf(1 - cs) + cc.cs
+	  * cv = cf - cf.cs + cc.cs
+	  */
+	 /* u[2] = MAD( -cf * cs + cf )
+	  * cv   = MAD( cc * cs + u[2] )
+	  */
+	 
+	 i915_emit_arith( p, A0_MAD, out, A0_DEST_CHANNEL_ALL, 0, 
+			 negate(cf,1,1,1,1), cs, cf );
+
+	 i915_emit_arith( p, A0_MAD, out, A0_DEST_CHANNEL_ALL, saturate, 
+			 cc, cs, out );
+
+	 return out;
+      } else {
+	 /* cv = cf(1 - cs) + cc.cs
+	  * cv = cf - cf.cs + cc.cs
+	  * av =      af.as
+	  */
+	 /* u[2] = MAD( cf.-x-y-zw * cs.xyzw + cf.xyz0 )
+	  * oC   = MAD( cc.xyz0 * cs.xyz0 + u[2].xyzw )
+	  */
+	 i915_emit_arith( p, A0_MAD, out, A0_DEST_CHANNEL_ALL, 0,
+			 negate(cf,1,1,1,0),  
+			 cs,
+			 swizzle(cf,X,Y,Z,ZERO) );
+
+
+	 i915_emit_arith( p, A0_MAD, out, A0_DEST_CHANNEL_ALL, saturate,
+			 swizzle(cc,X,Y,Z,ZERO),  
+			 swizzle(cs,X,Y,Z,ZERO),
+			 out );
+
+	 return out;
+      }
+   }
+
+   case GL_DECAL: {
+      if (format == GL_RGB ||
+	  format == GL_RGBA) {
+	 int cf = get_source( p, GL_PREVIOUS, unit );
+	 int cs = get_source( p, GL_TEXTURE, unit );
+	 int out = get_dest(p, unit);
+	 
+	 /* cv = cf(1-as) + cs.as
+	  * cv = cf.(-as) + cf + cs.as
+	  * av = af
+	  */ 
+	 
+	 /* u[2] = mad( cf.xyzw * cs.-w-w-w1 + cf.xyz0 )
+	  * oc = mad( cs.xyz0 * cs.www0 + u[2].xyzw )
+	  */
+	 i915_emit_arith( p, A0_MAD, out, A0_DEST_CHANNEL_ALL, 0,
+			 cf,  
+			 negate(swizzle(cs,W,W,W,ONE),1,1,1,0),
+			 swizzle(cf,X,Y,Z,ZERO) );
+	 
+	 i915_emit_arith( p, A0_MAD, out, A0_DEST_CHANNEL_ALL, saturate,
+			 swizzle(cs,X,Y,Z,ZERO),  
+			 swizzle(cs,W,W,W,ZERO),
+			 out );
+	 return out;
+      }
+      else {
+	 return get_source( p, GL_PREVIOUS, unit );
+      }
+   }
+
+   case GL_REPLACE: {
+      const int cs = get_source( p, GL_TEXTURE, unit );	/* saturated */
+      switch (format) {
+      case GL_ALPHA: {
+	 const int cf = get_source( p, GL_PREVIOUS, unit ); /* saturated */
+	 i915_emit_arith( p, A0_MOV, cs, A0_DEST_CHANNEL_XYZ, 0, cf, 0, 0 );
+	 return cs;
+      }
+      case GL_RGB:
+      case GL_LUMINANCE: {
+	 const int cf = get_source( p, GL_PREVIOUS, unit ); /* saturated */
+	 i915_emit_arith( p, A0_MOV, cs, A0_DEST_CHANNEL_W, 0, cf, 0, 0 );
+	 return cs;
+      }
+      default:
+	 return cs;
+      }
+   }
+
+   case GL_MODULATE: {
+      const int cf = get_source( p, GL_PREVIOUS, unit );
+      const int cs = get_source( p, GL_TEXTURE, unit );
+      const int out = get_dest(p, unit);
+      switch (format) {
+      case GL_ALPHA: 
+	 i915_emit_arith( p, A0_MUL, out, A0_DEST_CHANNEL_ALL, saturate,
+			 swizzle(cs, ONE, ONE, ONE, W), cf, 0 );
+	 break;
+      default:
+	 i915_emit_arith( p, A0_MUL, out, A0_DEST_CHANNEL_ALL, saturate, 
+			 cs, cf, 0 );
+	 break;
+      }
+      return out;
+   }
+   case GL_ADD: {
+      int cf = get_source( p, GL_PREVIOUS, unit );
+      int cs = get_source( p, GL_TEXTURE, unit );
+      const int out = get_dest( p, unit );
+
+      if (format == GL_INTENSITY) {
+	 /* output-color.rgba = add( incoming, u[1] )
+	  */
+	 i915_emit_arith( p, A0_ADD, out, A0_DEST_CHANNEL_ALL, saturate, 
+			 cs, cf, 0 );
+	 return out;
+      }
+      else {
+	 /* cv.xyz = cf.xyz + cs.xyz
+	  * cv.w   = cf.w * cs.w
+	  *
+	  * cv.xyzw = MAD( cf.111w * cs.xyzw + cf.xyz0 )
+	  */
+ 	 i915_emit_arith( p, A0_MAD, out, A0_DEST_CHANNEL_ALL, saturate,
+			 swizzle(cf,ONE,ONE,ONE,W), 
+			 cs,  
+			 swizzle(cf,X,Y,Z,ZERO) ); 
+	 return out;
+      }
+      break;
+   }
+   case GL_COMBINE: {
+      GLuint rgb_shift, alpha_shift, out, shift;
+      GLuint dest = get_dest(p, unit);
+
+      /* The EXT version of the DOT3 extension does not support the
+       * scale factor, but the ARB version (and the version in OpenGL
+       * 1.3) does.
+       */
+      switch (texUnit->Combine.ModeRGB) {
+      case GL_DOT3_RGB_EXT:
+	 alpha_shift = texUnit->Combine.ScaleShiftA;
+	 rgb_shift = 0;
+	 break;
+
+      case GL_DOT3_RGBA_EXT:
+	 alpha_shift = 0;
+	 rgb_shift = 0;
+	 break;
+
+      default:
+	 rgb_shift = texUnit->Combine.ScaleShiftRGB;
+	 alpha_shift = texUnit->Combine.ScaleShiftA;
+	 break;
+      }
+
+
+      /* Emit the RGB and A combine ops
+       */
+      if (texUnit->Combine.ModeRGB == texUnit->Combine.ModeA && 
+	  args_match( texUnit )) {
+	 out = emit_combine( p, dest, A0_DEST_CHANNEL_ALL, saturate,
+			     unit,
+			     texUnit->Combine.ModeRGB,
+			     texUnit->Combine.SourceRGB,
+			     texUnit->Combine.OperandRGB );
+      }
+      else if (texUnit->Combine.ModeRGB == GL_DOT3_RGBA_EXT ||
+	       texUnit->Combine.ModeRGB == GL_DOT3_RGBA) {
+
+	 out = emit_combine( p, dest, A0_DEST_CHANNEL_ALL, saturate,
+			     unit,
+			     texUnit->Combine.ModeRGB,
+			     texUnit->Combine.SourceRGB,
+			     texUnit->Combine.OperandRGB );
+      }
+      else {
+	 /* Need to do something to stop from re-emitting identical
+	  * argument calculations here:
+	  */
+	 out = emit_combine( p, dest, A0_DEST_CHANNEL_XYZ, saturate,
+			     unit,
+			     texUnit->Combine.ModeRGB,
+			     texUnit->Combine.SourceRGB,
+			     texUnit->Combine.OperandRGB );
+	 out = emit_combine( p, dest, A0_DEST_CHANNEL_W, saturate,
+			     unit,
+			     texUnit->Combine.ModeA,
+			     texUnit->Combine.SourceA,
+			     texUnit->Combine.OperandA );
+      }
+
+      /* Deal with the final shift:
+       */
+      if (alpha_shift || rgb_shift) {
+	 if (rgb_shift == alpha_shift) {
+	    shift = i915_emit_const1f(p, 1<<rgb_shift);
+	    shift = swizzle(shift,X,X,X,X);
+	 }
+	 else {
+	    shift = i915_emit_const2f(p, 1<<rgb_shift, 1<<alpha_shift);
+	    shift = swizzle(shift,X,X,X,Y);
+	 }
+	 return i915_emit_arith( p, A0_MUL, dest, A0_DEST_CHANNEL_ALL, 
+				saturate, out, shift, 0 );
+      }
+
+      return out;
+   }
+
+   default:
+      return get_source(p, GL_PREVIOUS, 0);
+   }
+}
+
+static void emit_program_fini( struct i915_fragment_program *p )
+{
+   int cf = get_source( p, GL_PREVIOUS, 0 );
+   int out = UREG( REG_TYPE_OC, 0 );
+
+   if (p->ctx->_TriangleCaps & DD_SEPARATE_SPECULAR) {
+      /* Emit specular add.
+       */
+      GLuint s = i915_emit_decl(p, REG_TYPE_T, T_SPECULAR, D0_CHANNEL_ALL);
+      i915_emit_arith( p, A0_ADD, out, A0_DEST_CHANNEL_ALL, 0, cf, 
+		  swizzle(s, X,Y,Z,ZERO), 0 );
+   }
+   else if (cf != out) {
+      /* Will wind up in here if no texture enabled or a couple of
+       * other scenarios (GL_REPLACE for instance).
+       */
+      i915_emit_arith( p, A0_MOV, out, A0_DEST_CHANNEL_ALL, 0, cf, 0, 0 );
+   }
+}
+
+
+static void i915EmitTextureProgram( i915ContextPtr i915 )
+{
+   GLcontext *ctx = &i915->intel.ctx;
+   struct i915_fragment_program *p = &i915->tex_program;
+   GLuint unit;
+
+   if (0) fprintf(stderr, "%s\n", __FUNCTION__);
+
+   i915_init_program( i915, p );
+
+   if (ctx->Texture._EnabledUnits) {
+      for (unit = 0 ; unit < ctx->Const.MaxTextureUnits ; unit++)
+	 if (ctx->Texture.Unit[unit]._ReallyEnabled) {
+	    p->last_tex_stage = unit;
+	 }
+
+      for (unit = 0 ; unit < ctx->Const.MaxTextureUnits; unit++)
+	 if (ctx->Texture.Unit[unit]._ReallyEnabled) {
+	    p->src_previous = emit_texenv( p, unit );
+	    p->src_texture = UREG_BAD;
+	    p->temp_flag = 0xffff000;
+	    p->temp_flag |= 1 << GET_UREG_NR(p->src_previous);
+	 }
+   }
+
+   emit_program_fini( p );
+
+   i915_fini_program( p );
+   i915_upload_program( i915, p );
+
+   p->translated = 1;
+}
+
+
+void i915ValidateTextureProgram( i915ContextPtr i915 )
+{
+   intelContextPtr intel = &i915->intel;
+   GLcontext *ctx = &intel->ctx;
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   struct vertex_buffer *VB = &tnl->vb;
+   GLuint index = tnl->render_inputs;
+   int i, offset;
+   GLuint s4 = i915->state.Ctx[I915_CTXREG_LIS4] & ~S4_VFMT_MASK;
+   GLuint s2 = S2_TEXCOORD_NONE;
+
+   /* Important:
+    */
+   VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr;
+   intel->vertex_attr_count = 0;
+   intel->coloroffset = 0;
+   intel->specoffset = 0;
+   offset = 0;
+
+   if (i915->vertex_fog == I915_FOG_PIXEL) {
+      EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, S4_VFMT_XYZW, 16 );
+      index &= ~_TNL_BIT_FOG;
+   }
+   else if (index & _TNL_BITS_TEX_ANY) {
+      EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, S4_VFMT_XYZW, 16 );
+   }
+   else {
+      EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_3F_VIEWPORT, S4_VFMT_XYZ, 12 );
+   }
+
+   /* How undefined is undefined? */
+   if (index & _TNL_BIT_POINTSIZE) {
+      EMIT_ATTR( _TNL_ATTRIB_POINTSIZE, EMIT_1F, S4_VFMT_POINT_WIDTH, 4 );
+   }
+      
+   intel->coloroffset = offset / 4;
+   EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA, S4_VFMT_COLOR, 4 );
+            
+   if (index & (_TNL_BIT_COLOR1|_TNL_BIT_FOG)) {
+      if (index & _TNL_BIT_COLOR1) {
+	 intel->specoffset = offset / 4;
+	 EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR, S4_VFMT_SPEC_FOG, 3 );
+      } else 
+	 EMIT_PAD( 3 );
+      
+      if (index & _TNL_BIT_FOG)
+	 EMIT_ATTR( _TNL_ATTRIB_FOG, EMIT_1UB_1F, S4_VFMT_SPEC_FOG, 1 );
+      else
+	 EMIT_PAD( 1 );
+   }
+
+   if (index & _TNL_BITS_TEX_ANY) {
+      for (i = 0; i < 8; i++) {
+	 if (index & _TNL_BIT_TEX(i)) {
+	    int sz = VB->TexCoordPtr[i]->size;
+	    
+	    s2 &= ~S2_TEXCOORD_FMT(i, S2_TEXCOORD_FMT0_MASK);
+	    s2 |= S2_TEXCOORD_FMT(i, SZ_TO_HW(sz));
+
+	    EMIT_ATTR( _TNL_ATTRIB_TEX0+i, EMIT_SZ(sz), 0, sz * 4 );
+	 }
+      }
+   }
+
+   /* Only need to change the vertex emit code if there has been a
+    * statechange to a new hardware vertex format:
+    */
+   if (s2 != i915->state.Ctx[I915_CTXREG_LIS2] ||
+       s4 != i915->state.Ctx[I915_CTXREG_LIS4]) {
+    
+      I915_STATECHANGE( i915, I915_UPLOAD_CTX );
+
+      i915->tex_program.translated = 0;
+
+      /* Must do this *after* statechange, so as not to affect
+       * buffered vertices reliant on the old state:
+       */
+      intel->vertex_size = _tnl_install_attrs( ctx, 
+					       intel->vertex_attrs, 
+					       intel->vertex_attr_count,
+					       intel->ViewportMatrix.m, 0 ); 
+
+      intel->vertex_size >>= 2;
+
+      i915->state.Ctx[I915_CTXREG_LIS2] = s2;
+      i915->state.Ctx[I915_CTXREG_LIS4] = s4;
+
+      assert(intel->vtbl.check_vertex_size( intel, intel->vertex_size ));
+   }
+
+   if (!i915->tex_program.translated ||
+       i915->last_ReallyEnabled != ctx->Texture._EnabledUnits) {
+      i915EmitTextureProgram( i915 );      
+      i915->last_ReallyEnabled = ctx->Texture._EnabledUnits;
+   }
+}