libxtrans libX11 libX11 libXext mesa xserver git update 22 sep 2011

1 files changed, 685 insertions, 684 deletions

diff --git a/mesalib/src/mesa/tnl/t_vertex_sse.c b/mesalib/src/mesa/tnl/t_vertex_sse.c
index f164cd77e..e0141c36f 100644
--- a/mesalib/src/mesa/tnl/t_vertex_sse.c
+++ b/mesalib/src/mesa/tnl/t_vertex_sse.c
@@ -1,684 +1,685 @@
-/*

- * Copyright 2003 Tungsten Graphics, inc.

- * All Rights Reserved.

- *

- * Permission is hereby granted, free of charge, to any person obtaining a

- * copy of this software and associated documentation files (the "Software"),

- * to deal in the Software without restriction, including without limitation

- * 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

- * TUNGSTEN GRAPHICS 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:

- *    Keith Whitwell <keithw@tungstengraphics.com>

- */

-

-#include "main/glheader.h"

-#include "main/context.h"

-#include "main/colormac.h"

-#include "main/simple_list.h"

-#include "main/enums.h"

-#include "t_context.h"

-#include "t_vertex.h"

-

-#if defined(USE_SSE_ASM)

-

-#include "x86/rtasm/x86sse.h"

-#include "x86/common_x86_asm.h"

-

-

-/**

- * Number of bytes to allocate for generated SSE functions

- */

-#define MAX_SSE_CODE_SIZE 1024

-

-

-#define X    0

-#define Y    1

-#define Z    2

-#define W    3

-

-

-struct x86_program {

-   struct x86_function func;

-

-   struct gl_context *ctx;

-   GLboolean inputs_safe;

-   GLboolean outputs_safe;

-   GLboolean have_sse2;

-   

-   struct x86_reg identity;

-   struct x86_reg chan0;

-};

-

-

-static struct x86_reg get_identity( struct x86_program *p )

-{

-   return p->identity;

-}

-

-static void emit_load4f_4( struct x86_program *p, 			   

-			   struct x86_reg dest,

-			   struct x86_reg arg0 )

-{

-   sse_movups(&p->func, dest, arg0);

-}

-

-static void emit_load4f_3( struct x86_program *p, 

-			   struct x86_reg dest,

-			   struct x86_reg arg0 )

-{

-   /* Have to jump through some hoops:

-    *

-    * c 0 0 0

-    * c 0 0 1

-    * 0 0 c 1

-    * a b c 1

-    */

-   sse_movss(&p->func, dest, x86_make_disp(arg0, 8));

-   sse_shufps(&p->func, dest, get_identity(p), SHUF(X,Y,Z,W) );

-   sse_shufps(&p->func, dest, dest, SHUF(Y,Z,X,W) );

-   sse_movlps(&p->func, dest, arg0);

-}

-

-static void emit_load4f_2( struct x86_program *p, 

-			   struct x86_reg dest,

-			   struct x86_reg arg0 )

-{

-   /* Initialize from identity, then pull in low two words:

-    */

-   sse_movups(&p->func, dest, get_identity(p));

-   sse_movlps(&p->func, dest, arg0);

-}

-

-static void emit_load4f_1( struct x86_program *p, 

-			   struct x86_reg dest,

-			   struct x86_reg arg0 )

-{

-   /* Pull in low word, then swizzle in identity */

-   sse_movss(&p->func, dest, arg0);

-   sse_shufps(&p->func, dest, get_identity(p), SHUF(X,Y,Z,W) );

-}

-

-

-

-static void emit_load3f_3( struct x86_program *p, 			   

-			   struct x86_reg dest,

-			   struct x86_reg arg0 )

-{

-   /* Over-reads by 1 dword - potential SEGV if input is a vertex

-    * array.

-    */

-   if (p->inputs_safe) {

-      sse_movups(&p->func, dest, arg0);

-   } 

-   else {

-      /* c 0 0 0

-       * c c c c

-       * a b c c 

-       */

-      sse_movss(&p->func, dest, x86_make_disp(arg0, 8));

-      sse_shufps(&p->func, dest, dest, SHUF(X,X,X,X));

-      sse_movlps(&p->func, dest, arg0);

-   }

-}

-

-static void emit_load3f_2( struct x86_program *p, 

-			   struct x86_reg dest,

-			   struct x86_reg arg0 )

-{

-   emit_load4f_2(p, dest, arg0);

-}

-

-static void emit_load3f_1( struct x86_program *p, 

-			   struct x86_reg dest,

-			   struct x86_reg arg0 )

-{

-   /* Loading from memory erases the upper bits. */

-   sse_movss(&p->func, dest, arg0);

-}

-

-static void emit_load2f_2( struct x86_program *p, 

-			   struct x86_reg dest,

-			   struct x86_reg arg0 )

-{

-   sse_movlps(&p->func, dest, arg0);

-}

-

-static void emit_load2f_1( struct x86_program *p, 

-			   struct x86_reg dest,

-			   struct x86_reg arg0 )

-{

-   /* Loading from memory erases the upper bits. */

-   sse_movss(&p->func, dest, arg0);

-}

-

-static void emit_load1f_1( struct x86_program *p, 

-			   struct x86_reg dest,

-			   struct x86_reg arg0 )

-{

-   sse_movss(&p->func, dest, arg0);

-}

-

-static void (*load[4][4])( struct x86_program *p, 

-			   struct x86_reg dest,

-			   struct x86_reg arg0 ) = {

-   { emit_load1f_1, 

-     emit_load1f_1, 

-     emit_load1f_1, 

-     emit_load1f_1 },

-

-   { emit_load2f_1, 

-     emit_load2f_2, 

-     emit_load2f_2, 

-     emit_load2f_2 },

-

-   { emit_load3f_1, 

-     emit_load3f_2, 

-     emit_load3f_3, 

-     emit_load3f_3 },

-

-   { emit_load4f_1, 

-     emit_load4f_2, 

-     emit_load4f_3, 

-     emit_load4f_4 } 

-};

-

-static void emit_load( struct x86_program *p,

-		       struct x86_reg dest,

-		       GLuint sz,

-		       struct x86_reg src,

-		       GLuint src_sz)

-{

-   load[sz-1][src_sz-1](p, dest, src);

-}

-

-static void emit_store4f( struct x86_program *p, 			   

-			  struct x86_reg dest,

-			  struct x86_reg arg0 )

-{

-   sse_movups(&p->func, dest, arg0);

-}

-

-static void emit_store3f( struct x86_program *p, 

-			  struct x86_reg dest,

-			  struct x86_reg arg0 )

-{

-   if (p->outputs_safe) {

-      /* Emit the extra dword anyway.  This may hurt writecombining,

-       * may cause other problems.

-       */

-      sse_movups(&p->func, dest, arg0);

-   }

-   else {

-      /* Alternate strategy - emit two, shuffle, emit one.

-       */

-      sse_movlps(&p->func, dest, arg0);

-      sse_shufps(&p->func, arg0, arg0, SHUF(Z,Z,Z,Z) ); /* NOTE! destructive */

-      sse_movss(&p->func, x86_make_disp(dest,8), arg0);

-   }

-}

-

-static void emit_store2f( struct x86_program *p, 

-			   struct x86_reg dest,

-			   struct x86_reg arg0 )

-{

-   sse_movlps(&p->func, dest, arg0);

-}

-

-static void emit_store1f( struct x86_program *p, 

-			  struct x86_reg dest,

-			  struct x86_reg arg0 )

-{

-   sse_movss(&p->func, dest, arg0);

-}

-

-

-static void (*store[4])( struct x86_program *p, 

-			 struct x86_reg dest,

-			 struct x86_reg arg0 ) = 

-{

-   emit_store1f, 

-   emit_store2f, 

-   emit_store3f, 

-   emit_store4f 

-};

-

-static void emit_store( struct x86_program *p,

-			struct x86_reg dest,

-			GLuint sz,

-			struct x86_reg temp )

-

-{

-   store[sz-1](p, dest, temp);

-}

-

-static void emit_pack_store_4ub( struct x86_program *p,

-				 struct x86_reg dest,

-				 struct x86_reg temp )

-{

-   /* Scale by 255.0

-    */

-   sse_mulps(&p->func, temp, p->chan0);

-

-   if (p->have_sse2) {

-      sse2_cvtps2dq(&p->func, temp, temp);

-      sse2_packssdw(&p->func, temp, temp);

-      sse2_packuswb(&p->func, temp, temp);

-      sse_movss(&p->func, dest, temp);

-   }

-   else {

-      struct x86_reg mmx0 = x86_make_reg(file_MMX, 0);

-      struct x86_reg mmx1 = x86_make_reg(file_MMX, 1);

-      sse_cvtps2pi(&p->func, mmx0, temp);

-      sse_movhlps(&p->func, temp, temp);

-      sse_cvtps2pi(&p->func, mmx1, temp);

-      mmx_packssdw(&p->func, mmx0, mmx1);

-      mmx_packuswb(&p->func, mmx0, mmx0);

-      mmx_movd(&p->func, dest, mmx0);

-   }

-}

-

-static GLint get_offset( const void *a, const void *b )

-{

-   return (const char *)b - (const char *)a;

-}

-

-/* Not much happens here.  Eventually use this function to try and

- * avoid saving/reloading the source pointers each vertex (if some of

- * them can fit in registers).

- */

-static void get_src_ptr( struct x86_program *p,

-			 struct x86_reg srcREG,

-			 struct x86_reg vtxREG,

-			 struct tnl_clipspace_attr *a )

-{

-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(p->ctx);

-   struct x86_reg ptr_to_src = x86_make_disp(vtxREG, get_offset(vtx, &a->inputptr));

-

-   /* Load current a[j].inputptr

-    */

-   x86_mov(&p->func, srcREG, ptr_to_src);

-}

-

-static void update_src_ptr( struct x86_program *p,

-			 struct x86_reg srcREG,

-			 struct x86_reg vtxREG,

-			 struct tnl_clipspace_attr *a )

-{

-   if (a->inputstride) {

-      struct tnl_clipspace *vtx = GET_VERTEX_STATE(p->ctx);

-      struct x86_reg ptr_to_src = x86_make_disp(vtxREG, get_offset(vtx, &a->inputptr));

-

-      /* add a[j].inputstride (hardcoded value - could just as easily

-       * pull the stride value from memory each time).

-       */

-      x86_lea(&p->func, srcREG, x86_make_disp(srcREG, a->inputstride));

-      

-      /* save new value of a[j].inputptr 

-       */

-      x86_mov(&p->func, ptr_to_src, srcREG);

-   }

-}

-

-

-/* Lots of hardcoding

- *

- * EAX -- pointer to current output vertex

- * ECX -- pointer to current attribute 

- * 

- */

-static GLboolean build_vertex_emit( struct x86_program *p )

-{

-   struct gl_context *ctx = p->ctx;

-   TNLcontext *tnl = TNL_CONTEXT(ctx);

-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

-   GLuint j = 0;

-

-   struct x86_reg vertexEAX = x86_make_reg(file_REG32, reg_AX);

-   struct x86_reg srcECX = x86_make_reg(file_REG32, reg_CX);

-   struct x86_reg countEBP = x86_make_reg(file_REG32, reg_BP);

-   struct x86_reg vtxESI = x86_make_reg(file_REG32, reg_SI);

-   struct x86_reg temp = x86_make_reg(file_XMM, 0);

-   struct x86_reg vp0 = x86_make_reg(file_XMM, 1);

-   struct x86_reg vp1 = x86_make_reg(file_XMM, 2);

-   struct x86_reg temp2 = x86_make_reg(file_XMM, 3);

-   GLubyte *fixup, *label;

-

-   /* Push a few regs?

-    */

-   x86_push(&p->func, countEBP);

-   x86_push(&p->func, vtxESI);

-

-

-   /* Get vertex count, compare to zero

-    */

-   x86_xor(&p->func, srcECX, srcECX);

-   x86_mov(&p->func, countEBP, x86_fn_arg(&p->func, 2));

-   x86_cmp(&p->func, countEBP, srcECX);

-   fixup = x86_jcc_forward(&p->func, cc_E);

-

-   /* Initialize destination register. 

-    */

-   x86_mov(&p->func, vertexEAX, x86_fn_arg(&p->func, 3));

-

-   /* Dereference ctx to get tnl, then vtx:

-    */

-   x86_mov(&p->func, vtxESI, x86_fn_arg(&p->func, 1));

-   x86_mov(&p->func, vtxESI, x86_make_disp(vtxESI, get_offset(ctx, &ctx->swtnl_context)));

-   vtxESI = x86_make_disp(vtxESI, get_offset(tnl, &tnl->clipspace));

-

-   

-   /* Possibly load vp0, vp1 for viewport calcs:

-    */

-   if (vtx->need_viewport) {

-      sse_movups(&p->func, vp0, x86_make_disp(vtxESI, get_offset(vtx, &vtx->vp_scale[0])));

-      sse_movups(&p->func, vp1, x86_make_disp(vtxESI, get_offset(vtx, &vtx->vp_xlate[0])));

-   }

-

-   /* always load, needed or not:

-    */

-   sse_movups(&p->func, p->chan0, x86_make_disp(vtxESI, get_offset(vtx, &vtx->chan_scale[0])));

-   sse_movups(&p->func, p->identity, x86_make_disp(vtxESI, get_offset(vtx, &vtx->identity[0])));

-

-   /* Note address for loop jump */

-   label = x86_get_label(&p->func);

-

-   /* Emit code for each of the attributes.  Currently routes

-    * everything through SSE registers, even when it might be more

-    * efficient to stick with regular old x86.  No optimization or

-    * other tricks - enough new ground to cover here just getting

-    * things working.

-    */

-   while (j < vtx->attr_count) {

-      struct tnl_clipspace_attr *a = &vtx->attr[j];

-      struct x86_reg dest = x86_make_disp(vertexEAX, a->vertoffset);

-

-      /* Now, load an XMM reg from src, perhaps transform, then save.

-       * Could be shortcircuited in specific cases:

-       */

-      switch (a->format) {

-      case EMIT_1F:

-	 get_src_ptr(p, srcECX, vtxESI, a);

-	 emit_load(p, temp, 1, x86_deref(srcECX), a->inputsize);

-	 emit_store(p, dest, 1, temp);

-	 update_src_ptr(p, srcECX, vtxESI, a);

-	 break;

-      case EMIT_2F:

-	 get_src_ptr(p, srcECX, vtxESI, a);

-	 emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize);

-	 emit_store(p, dest, 2, temp);

-	 update_src_ptr(p, srcECX, vtxESI, a);

-	 break;

-      case EMIT_3F:

-	 /* Potentially the worst case - hardcode 2+1 copying:

-	  */

-	 if (0) {

-	    get_src_ptr(p, srcECX, vtxESI, a);

-	    emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);

-	    emit_store(p, dest, 3, temp);

-	    update_src_ptr(p, srcECX, vtxESI, a);

-	 }

-	 else {

-	    get_src_ptr(p, srcECX, vtxESI, a);

-	    emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize);

-	    emit_store(p, dest, 2, temp);

-	    if (a->inputsize > 2) {

-	       emit_load(p, temp, 1, x86_make_disp(srcECX, 8), 1);

-	       emit_store(p, x86_make_disp(dest,8), 1, temp);

-	    }

-	    else {

-	       sse_movss(&p->func, x86_make_disp(dest,8), get_identity(p));

-	    }

-	    update_src_ptr(p, srcECX, vtxESI, a);

-	 }

-	 break;

-      case EMIT_4F:

-	 get_src_ptr(p, srcECX, vtxESI, a);

-	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);

-	 emit_store(p, dest, 4, temp);

-	 update_src_ptr(p, srcECX, vtxESI, a);

-	 break;

-      case EMIT_2F_VIEWPORT: 

-	 get_src_ptr(p, srcECX, vtxESI, a);

-	 emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize);

-	 sse_mulps(&p->func, temp, vp0);

-	 sse_addps(&p->func, temp, vp1);

-	 emit_store(p, dest, 2, temp);

-	 update_src_ptr(p, srcECX, vtxESI, a);

-	 break;

-      case EMIT_3F_VIEWPORT: 

-	 get_src_ptr(p, srcECX, vtxESI, a);

-	 emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);

-	 sse_mulps(&p->func, temp, vp0);

-	 sse_addps(&p->func, temp, vp1);

-	 emit_store(p, dest, 3, temp);

-	 update_src_ptr(p, srcECX, vtxESI, a);

-	 break;

-      case EMIT_4F_VIEWPORT: 

-	 get_src_ptr(p, srcECX, vtxESI, a);

-	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);

-	 sse_mulps(&p->func, temp, vp0);

-	 sse_addps(&p->func, temp, vp1);

-	 emit_store(p, dest, 4, temp);

-	 update_src_ptr(p, srcECX, vtxESI, a);

-	 break;

-      case EMIT_3F_XYW:

-	 get_src_ptr(p, srcECX, vtxESI, a);

-	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);

-	 sse_shufps(&p->func, temp, temp, SHUF(X,Y,W,Z));

-	 emit_store(p, dest, 3, temp);

-	 update_src_ptr(p, srcECX, vtxESI, a);

-	 break;

-

-      case EMIT_1UB_1F:	 

-	 /* Test for PAD3 + 1UB:

-	  */

-	 if (j > 0 &&

-	     a[-1].vertoffset + a[-1].vertattrsize <= a->vertoffset - 3)

-	 {

-	    get_src_ptr(p, srcECX, vtxESI, a);

-	    emit_load(p, temp, 1, x86_deref(srcECX), a->inputsize);

-	    sse_shufps(&p->func, temp, temp, SHUF(X,X,X,X));

-	    emit_pack_store_4ub(p, x86_make_disp(dest, -3), temp); /* overkill! */

-	    update_src_ptr(p, srcECX, vtxESI, a);

-	 }

-	 else {

-	    printf("Can't emit 1ub %x %x %d\n", a->vertoffset, a[-1].vertoffset, a[-1].vertattrsize );

-	    return GL_FALSE;

-	 }

-	 break;

-      case EMIT_3UB_3F_RGB:

-      case EMIT_3UB_3F_BGR:

-	 /* Test for 3UB + PAD1:

-	  */

-	 if (j == vtx->attr_count - 1 ||

-	     a[1].vertoffset >= a->vertoffset + 4) {

-	    get_src_ptr(p, srcECX, vtxESI, a);

-	    emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);

-	    if (a->format == EMIT_3UB_3F_BGR)

-	       sse_shufps(&p->func, temp, temp, SHUF(Z,Y,X,W));

-	    emit_pack_store_4ub(p, dest, temp);

-	    update_src_ptr(p, srcECX, vtxESI, a);

-	 }

-	 /* Test for 3UB + 1UB:

-	  */

-	 else if (j < vtx->attr_count - 1 &&

-		  a[1].format == EMIT_1UB_1F &&

-		  a[1].vertoffset == a->vertoffset + 3) {

-	    get_src_ptr(p, srcECX, vtxESI, a);

-	    emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);

-	    update_src_ptr(p, srcECX, vtxESI, a);

-

-	    /* Make room for incoming value:

-	     */

-	    sse_shufps(&p->func, temp, temp, SHUF(W,X,Y,Z));

-

-	    get_src_ptr(p, srcECX, vtxESI, &a[1]);

-	    emit_load(p, temp2, 1, x86_deref(srcECX), a[1].inputsize);

-	    sse_movss(&p->func, temp, temp2);

-	    update_src_ptr(p, srcECX, vtxESI, &a[1]);

-

-	    /* Rearrange and possibly do BGR conversion:

-	     */

-	    if (a->format == EMIT_3UB_3F_BGR)

-	       sse_shufps(&p->func, temp, temp, SHUF(W,Z,Y,X));

-	    else

-	       sse_shufps(&p->func, temp, temp, SHUF(Y,Z,W,X));

-

-	    emit_pack_store_4ub(p, dest, temp);

-	    j++;		/* NOTE: two attrs consumed */

-	 }

-	 else {

-	    printf("Can't emit 3ub\n");

-	    return GL_FALSE;	/* add this later */

-	 }

-	 break;

-

-      case EMIT_4UB_4F_RGBA:

-	 get_src_ptr(p, srcECX, vtxESI, a);

-	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);

-	 emit_pack_store_4ub(p, dest, temp);

-	 update_src_ptr(p, srcECX, vtxESI, a);

-	 break;

-      case EMIT_4UB_4F_BGRA:

-	 get_src_ptr(p, srcECX, vtxESI, a);

-	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);

-	 sse_shufps(&p->func, temp, temp, SHUF(Z,Y,X,W));

-	 emit_pack_store_4ub(p, dest, temp);

-	 update_src_ptr(p, srcECX, vtxESI, a);

-	 break;

-      case EMIT_4UB_4F_ARGB:

-	 get_src_ptr(p, srcECX, vtxESI, a);

-	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);

-	 sse_shufps(&p->func, temp, temp, SHUF(W,X,Y,Z));

-	 emit_pack_store_4ub(p, dest, temp);

-	 update_src_ptr(p, srcECX, vtxESI, a);

-	 break;

-      case EMIT_4UB_4F_ABGR:

-	 get_src_ptr(p, srcECX, vtxESI, a);

-	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);

-	 sse_shufps(&p->func, temp, temp, SHUF(W,Z,Y,X));

-	 emit_pack_store_4ub(p, dest, temp);

-	 update_src_ptr(p, srcECX, vtxESI, a);

-	 break;

-      case EMIT_4CHAN_4F_RGBA:

-	 switch (CHAN_TYPE) {

-	 case GL_UNSIGNED_BYTE:

-	    get_src_ptr(p, srcECX, vtxESI, a);

-	    emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);

-	    emit_pack_store_4ub(p, dest, temp);

-	    update_src_ptr(p, srcECX, vtxESI, a);

-	    break;

-	 case GL_FLOAT:

-	    get_src_ptr(p, srcECX, vtxESI, a);

-	    emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);

-	    emit_store(p, dest, 4, temp);

-	    update_src_ptr(p, srcECX, vtxESI, a);

-	    break;

-	 case GL_UNSIGNED_SHORT:

-	 default:

-	    printf("unknown CHAN_TYPE %s\n", _mesa_lookup_enum_by_nr(CHAN_TYPE));

-	    return GL_FALSE;

-	 }

-	 break;

-      default:

-	 printf("unknown a[%d].format %d\n", j, a->format);

-	 return GL_FALSE;	/* catch any new opcodes */

-      }

-      

-      /* Increment j by at least 1 - may have been incremented above also:

-       */

-      j++;

-   }

-

-   /* Next vertex:

-    */

-   x86_lea(&p->func, vertexEAX, x86_make_disp(vertexEAX, vtx->vertex_size));

-

-   /* decr count, loop if not zero

-    */

-   x86_dec(&p->func, countEBP);

-   x86_test(&p->func, countEBP, countEBP); 

-   x86_jcc(&p->func, cc_NZ, label);

-

-   /* Exit mmx state?

-    */

-   if (p->func.need_emms)

-      mmx_emms(&p->func);

-

-   /* Land forward jump here:

-    */

-   x86_fixup_fwd_jump(&p->func, fixup);

-

-   /* Pop regs and return

-    */

-   x86_pop(&p->func, x86_get_base_reg(vtxESI));

-   x86_pop(&p->func, countEBP);

-   x86_ret(&p->func);

-

-   assert(!vtx->emit);

-   vtx->emit = (tnl_emit_func)x86_get_func(&p->func);

-

-   assert( (char *) p->func.csr - (char *) p->func.store <= MAX_SSE_CODE_SIZE );

-   return GL_TRUE;

-}

-

-

-

-void _tnl_generate_sse_emit( struct gl_context *ctx )

-{

-   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);

-   struct x86_program p;   

-

-   if (!cpu_has_xmm) {

-      vtx->codegen_emit = NULL;

-      return;

-   }

-

-   memset(&p, 0, sizeof(p));

-

-   p.ctx = ctx;

-   p.inputs_safe = 0;		/* for now */

-   p.outputs_safe = 0;		/* for now */

-   p.have_sse2 = cpu_has_xmm2;

-   p.identity = x86_make_reg(file_XMM, 6);

-   p.chan0 = x86_make_reg(file_XMM, 7);

-

-   if (!x86_init_func_size(&p.func, MAX_SSE_CODE_SIZE)) {

-      vtx->emit = NULL;

-      return;

-   }

-

-   if (build_vertex_emit(&p)) {

-      _tnl_register_fastpath( vtx, GL_TRUE );

-   }

-   else {

-      /* Note the failure so that we don't keep trying to codegen an

-       * impossible state:

-       */

-      _tnl_register_fastpath( vtx, GL_FALSE );

-      x86_release_func(&p.func);

-   }

-}

-

-#else

-

-void _tnl_generate_sse_emit( struct gl_context *ctx )

-{

-   /* Dummy version for when USE_SSE_ASM not defined */

-}

-

-#endif

+/*
+ * Copyright 2003 Tungsten Graphics, inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * 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
+ * TUNGSTEN GRAPHICS 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:
+ *    Keith Whitwell <keithw@tungstengraphics.com>
+ */
+
+#include "main/glheader.h"
+#include "main/context.h"
+#include "main/colormac.h"
+#include "main/simple_list.h"
+#include "main/enums.h"
+#include "swrast/s_chan.h"
+#include "t_context.h"
+#include "t_vertex.h"
+
+#if defined(USE_SSE_ASM)
+
+#include "x86/rtasm/x86sse.h"
+#include "x86/common_x86_asm.h"
+
+
+/**
+ * Number of bytes to allocate for generated SSE functions
+ */
+#define MAX_SSE_CODE_SIZE 1024
+
+
+#define X    0
+#define Y    1
+#define Z    2
+#define W    3
+
+
+struct x86_program {
+   struct x86_function func;
+
+   struct gl_context *ctx;
+   GLboolean inputs_safe;
+   GLboolean outputs_safe;
+   GLboolean have_sse2;
+   
+   struct x86_reg identity;
+   struct x86_reg chan0;
+};
+
+
+static struct x86_reg get_identity( struct x86_program *p )
+{
+   return p->identity;
+}
+
+static void emit_load4f_4( struct x86_program *p, 			   
+			   struct x86_reg dest,
+			   struct x86_reg arg0 )
+{
+   sse_movups(&p->func, dest, arg0);
+}
+
+static void emit_load4f_3( struct x86_program *p, 
+			   struct x86_reg dest,
+			   struct x86_reg arg0 )
+{
+   /* Have to jump through some hoops:
+    *
+    * c 0 0 0
+    * c 0 0 1
+    * 0 0 c 1
+    * a b c 1
+    */
+   sse_movss(&p->func, dest, x86_make_disp(arg0, 8));
+   sse_shufps(&p->func, dest, get_identity(p), SHUF(X,Y,Z,W) );
+   sse_shufps(&p->func, dest, dest, SHUF(Y,Z,X,W) );
+   sse_movlps(&p->func, dest, arg0);
+}
+
+static void emit_load4f_2( struct x86_program *p, 
+			   struct x86_reg dest,
+			   struct x86_reg arg0 )
+{
+   /* Initialize from identity, then pull in low two words:
+    */
+   sse_movups(&p->func, dest, get_identity(p));
+   sse_movlps(&p->func, dest, arg0);
+}
+
+static void emit_load4f_1( struct x86_program *p, 
+			   struct x86_reg dest,
+			   struct x86_reg arg0 )
+{
+   /* Pull in low word, then swizzle in identity */
+   sse_movss(&p->func, dest, arg0);
+   sse_shufps(&p->func, dest, get_identity(p), SHUF(X,Y,Z,W) );
+}
+
+
+
+static void emit_load3f_3( struct x86_program *p, 			   
+			   struct x86_reg dest,
+			   struct x86_reg arg0 )
+{
+   /* Over-reads by 1 dword - potential SEGV if input is a vertex
+    * array.
+    */
+   if (p->inputs_safe) {
+      sse_movups(&p->func, dest, arg0);
+   } 
+   else {
+      /* c 0 0 0
+       * c c c c
+       * a b c c 
+       */
+      sse_movss(&p->func, dest, x86_make_disp(arg0, 8));
+      sse_shufps(&p->func, dest, dest, SHUF(X,X,X,X));
+      sse_movlps(&p->func, dest, arg0);
+   }
+}
+
+static void emit_load3f_2( struct x86_program *p, 
+			   struct x86_reg dest,
+			   struct x86_reg arg0 )
+{
+   emit_load4f_2(p, dest, arg0);
+}
+
+static void emit_load3f_1( struct x86_program *p, 
+			   struct x86_reg dest,
+			   struct x86_reg arg0 )
+{
+   /* Loading from memory erases the upper bits. */
+   sse_movss(&p->func, dest, arg0);
+}
+
+static void emit_load2f_2( struct x86_program *p, 
+			   struct x86_reg dest,
+			   struct x86_reg arg0 )
+{
+   sse_movlps(&p->func, dest, arg0);
+}
+
+static void emit_load2f_1( struct x86_program *p, 
+			   struct x86_reg dest,
+			   struct x86_reg arg0 )
+{
+   /* Loading from memory erases the upper bits. */
+   sse_movss(&p->func, dest, arg0);
+}
+
+static void emit_load1f_1( struct x86_program *p, 
+			   struct x86_reg dest,
+			   struct x86_reg arg0 )
+{
+   sse_movss(&p->func, dest, arg0);
+}
+
+static void (*load[4][4])( struct x86_program *p, 
+			   struct x86_reg dest,
+			   struct x86_reg arg0 ) = {
+   { emit_load1f_1, 
+     emit_load1f_1, 
+     emit_load1f_1, 
+     emit_load1f_1 },
+
+   { emit_load2f_1, 
+     emit_load2f_2, 
+     emit_load2f_2, 
+     emit_load2f_2 },
+
+   { emit_load3f_1, 
+     emit_load3f_2, 
+     emit_load3f_3, 
+     emit_load3f_3 },
+
+   { emit_load4f_1, 
+     emit_load4f_2, 
+     emit_load4f_3, 
+     emit_load4f_4 } 
+};
+
+static void emit_load( struct x86_program *p,
+		       struct x86_reg dest,
+		       GLuint sz,
+		       struct x86_reg src,
+		       GLuint src_sz)
+{
+   load[sz-1][src_sz-1](p, dest, src);
+}
+
+static void emit_store4f( struct x86_program *p, 			   
+			  struct x86_reg dest,
+			  struct x86_reg arg0 )
+{
+   sse_movups(&p->func, dest, arg0);
+}
+
+static void emit_store3f( struct x86_program *p, 
+			  struct x86_reg dest,
+			  struct x86_reg arg0 )
+{
+   if (p->outputs_safe) {
+      /* Emit the extra dword anyway.  This may hurt writecombining,
+       * may cause other problems.
+       */
+      sse_movups(&p->func, dest, arg0);
+   }
+   else {
+      /* Alternate strategy - emit two, shuffle, emit one.
+       */
+      sse_movlps(&p->func, dest, arg0);
+      sse_shufps(&p->func, arg0, arg0, SHUF(Z,Z,Z,Z) ); /* NOTE! destructive */
+      sse_movss(&p->func, x86_make_disp(dest,8), arg0);
+   }
+}
+
+static void emit_store2f( struct x86_program *p, 
+			   struct x86_reg dest,
+			   struct x86_reg arg0 )
+{
+   sse_movlps(&p->func, dest, arg0);
+}
+
+static void emit_store1f( struct x86_program *p, 
+			  struct x86_reg dest,
+			  struct x86_reg arg0 )
+{
+   sse_movss(&p->func, dest, arg0);
+}
+
+
+static void (*store[4])( struct x86_program *p, 
+			 struct x86_reg dest,
+			 struct x86_reg arg0 ) = 
+{
+   emit_store1f, 
+   emit_store2f, 
+   emit_store3f, 
+   emit_store4f 
+};
+
+static void emit_store( struct x86_program *p,
+			struct x86_reg dest,
+			GLuint sz,
+			struct x86_reg temp )
+
+{
+   store[sz-1](p, dest, temp);
+}
+
+static void emit_pack_store_4ub( struct x86_program *p,
+				 struct x86_reg dest,
+				 struct x86_reg temp )
+{
+   /* Scale by 255.0
+    */
+   sse_mulps(&p->func, temp, p->chan0);
+
+   if (p->have_sse2) {
+      sse2_cvtps2dq(&p->func, temp, temp);
+      sse2_packssdw(&p->func, temp, temp);
+      sse2_packuswb(&p->func, temp, temp);
+      sse_movss(&p->func, dest, temp);
+   }
+   else {
+      struct x86_reg mmx0 = x86_make_reg(file_MMX, 0);
+      struct x86_reg mmx1 = x86_make_reg(file_MMX, 1);
+      sse_cvtps2pi(&p->func, mmx0, temp);
+      sse_movhlps(&p->func, temp, temp);
+      sse_cvtps2pi(&p->func, mmx1, temp);
+      mmx_packssdw(&p->func, mmx0, mmx1);
+      mmx_packuswb(&p->func, mmx0, mmx0);
+      mmx_movd(&p->func, dest, mmx0);
+   }
+}
+
+static GLint get_offset( const void *a, const void *b )
+{
+   return (const char *)b - (const char *)a;
+}
+
+/* Not much happens here.  Eventually use this function to try and
+ * avoid saving/reloading the source pointers each vertex (if some of
+ * them can fit in registers).
+ */
+static void get_src_ptr( struct x86_program *p,
+			 struct x86_reg srcREG,
+			 struct x86_reg vtxREG,
+			 struct tnl_clipspace_attr *a )
+{
+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(p->ctx);
+   struct x86_reg ptr_to_src = x86_make_disp(vtxREG, get_offset(vtx, &a->inputptr));
+
+   /* Load current a[j].inputptr
+    */
+   x86_mov(&p->func, srcREG, ptr_to_src);
+}
+
+static void update_src_ptr( struct x86_program *p,
+			 struct x86_reg srcREG,
+			 struct x86_reg vtxREG,
+			 struct tnl_clipspace_attr *a )
+{
+   if (a->inputstride) {
+      struct tnl_clipspace *vtx = GET_VERTEX_STATE(p->ctx);
+      struct x86_reg ptr_to_src = x86_make_disp(vtxREG, get_offset(vtx, &a->inputptr));
+
+      /* add a[j].inputstride (hardcoded value - could just as easily
+       * pull the stride value from memory each time).
+       */
+      x86_lea(&p->func, srcREG, x86_make_disp(srcREG, a->inputstride));
+      
+      /* save new value of a[j].inputptr 
+       */
+      x86_mov(&p->func, ptr_to_src, srcREG);
+   }
+}
+
+
+/* Lots of hardcoding
+ *
+ * EAX -- pointer to current output vertex
+ * ECX -- pointer to current attribute 
+ * 
+ */
+static GLboolean build_vertex_emit( struct x86_program *p )
+{
+   struct gl_context *ctx = p->ctx;
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
+   GLuint j = 0;
+
+   struct x86_reg vertexEAX = x86_make_reg(file_REG32, reg_AX);
+   struct x86_reg srcECX = x86_make_reg(file_REG32, reg_CX);
+   struct x86_reg countEBP = x86_make_reg(file_REG32, reg_BP);
+   struct x86_reg vtxESI = x86_make_reg(file_REG32, reg_SI);
+   struct x86_reg temp = x86_make_reg(file_XMM, 0);
+   struct x86_reg vp0 = x86_make_reg(file_XMM, 1);
+   struct x86_reg vp1 = x86_make_reg(file_XMM, 2);
+   struct x86_reg temp2 = x86_make_reg(file_XMM, 3);
+   GLubyte *fixup, *label;
+
+   /* Push a few regs?
+    */
+   x86_push(&p->func, countEBP);
+   x86_push(&p->func, vtxESI);
+
+
+   /* Get vertex count, compare to zero
+    */
+   x86_xor(&p->func, srcECX, srcECX);
+   x86_mov(&p->func, countEBP, x86_fn_arg(&p->func, 2));
+   x86_cmp(&p->func, countEBP, srcECX);
+   fixup = x86_jcc_forward(&p->func, cc_E);
+
+   /* Initialize destination register. 
+    */
+   x86_mov(&p->func, vertexEAX, x86_fn_arg(&p->func, 3));
+
+   /* Dereference ctx to get tnl, then vtx:
+    */
+   x86_mov(&p->func, vtxESI, x86_fn_arg(&p->func, 1));
+   x86_mov(&p->func, vtxESI, x86_make_disp(vtxESI, get_offset(ctx, &ctx->swtnl_context)));
+   vtxESI = x86_make_disp(vtxESI, get_offset(tnl, &tnl->clipspace));
+
+   
+   /* Possibly load vp0, vp1 for viewport calcs:
+    */
+   if (vtx->need_viewport) {
+      sse_movups(&p->func, vp0, x86_make_disp(vtxESI, get_offset(vtx, &vtx->vp_scale[0])));
+      sse_movups(&p->func, vp1, x86_make_disp(vtxESI, get_offset(vtx, &vtx->vp_xlate[0])));
+   }
+
+   /* always load, needed or not:
+    */
+   sse_movups(&p->func, p->chan0, x86_make_disp(vtxESI, get_offset(vtx, &vtx->chan_scale[0])));
+   sse_movups(&p->func, p->identity, x86_make_disp(vtxESI, get_offset(vtx, &vtx->identity[0])));
+
+   /* Note address for loop jump */
+   label = x86_get_label(&p->func);
+
+   /* Emit code for each of the attributes.  Currently routes
+    * everything through SSE registers, even when it might be more
+    * efficient to stick with regular old x86.  No optimization or
+    * other tricks - enough new ground to cover here just getting
+    * things working.
+    */
+   while (j < vtx->attr_count) {
+      struct tnl_clipspace_attr *a = &vtx->attr[j];
+      struct x86_reg dest = x86_make_disp(vertexEAX, a->vertoffset);
+
+      /* Now, load an XMM reg from src, perhaps transform, then save.
+       * Could be shortcircuited in specific cases:
+       */
+      switch (a->format) {
+      case EMIT_1F:
+	 get_src_ptr(p, srcECX, vtxESI, a);
+	 emit_load(p, temp, 1, x86_deref(srcECX), a->inputsize);
+	 emit_store(p, dest, 1, temp);
+	 update_src_ptr(p, srcECX, vtxESI, a);
+	 break;
+      case EMIT_2F:
+	 get_src_ptr(p, srcECX, vtxESI, a);
+	 emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize);
+	 emit_store(p, dest, 2, temp);
+	 update_src_ptr(p, srcECX, vtxESI, a);
+	 break;
+      case EMIT_3F:
+	 /* Potentially the worst case - hardcode 2+1 copying:
+	  */
+	 if (0) {
+	    get_src_ptr(p, srcECX, vtxESI, a);
+	    emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);
+	    emit_store(p, dest, 3, temp);
+	    update_src_ptr(p, srcECX, vtxESI, a);
+	 }
+	 else {
+	    get_src_ptr(p, srcECX, vtxESI, a);
+	    emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize);
+	    emit_store(p, dest, 2, temp);
+	    if (a->inputsize > 2) {
+	       emit_load(p, temp, 1, x86_make_disp(srcECX, 8), 1);
+	       emit_store(p, x86_make_disp(dest,8), 1, temp);
+	    }
+	    else {
+	       sse_movss(&p->func, x86_make_disp(dest,8), get_identity(p));
+	    }
+	    update_src_ptr(p, srcECX, vtxESI, a);
+	 }
+	 break;
+      case EMIT_4F:
+	 get_src_ptr(p, srcECX, vtxESI, a);
+	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+	 emit_store(p, dest, 4, temp);
+	 update_src_ptr(p, srcECX, vtxESI, a);
+	 break;
+      case EMIT_2F_VIEWPORT: 
+	 get_src_ptr(p, srcECX, vtxESI, a);
+	 emit_load(p, temp, 2, x86_deref(srcECX), a->inputsize);
+	 sse_mulps(&p->func, temp, vp0);
+	 sse_addps(&p->func, temp, vp1);
+	 emit_store(p, dest, 2, temp);
+	 update_src_ptr(p, srcECX, vtxESI, a);
+	 break;
+      case EMIT_3F_VIEWPORT: 
+	 get_src_ptr(p, srcECX, vtxESI, a);
+	 emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);
+	 sse_mulps(&p->func, temp, vp0);
+	 sse_addps(&p->func, temp, vp1);
+	 emit_store(p, dest, 3, temp);
+	 update_src_ptr(p, srcECX, vtxESI, a);
+	 break;
+      case EMIT_4F_VIEWPORT: 
+	 get_src_ptr(p, srcECX, vtxESI, a);
+	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+	 sse_mulps(&p->func, temp, vp0);
+	 sse_addps(&p->func, temp, vp1);
+	 emit_store(p, dest, 4, temp);
+	 update_src_ptr(p, srcECX, vtxESI, a);
+	 break;
+      case EMIT_3F_XYW:
+	 get_src_ptr(p, srcECX, vtxESI, a);
+	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+	 sse_shufps(&p->func, temp, temp, SHUF(X,Y,W,Z));
+	 emit_store(p, dest, 3, temp);
+	 update_src_ptr(p, srcECX, vtxESI, a);
+	 break;
+
+      case EMIT_1UB_1F:	 
+	 /* Test for PAD3 + 1UB:
+	  */
+	 if (j > 0 &&
+	     a[-1].vertoffset + a[-1].vertattrsize <= a->vertoffset - 3)
+	 {
+	    get_src_ptr(p, srcECX, vtxESI, a);
+	    emit_load(p, temp, 1, x86_deref(srcECX), a->inputsize);
+	    sse_shufps(&p->func, temp, temp, SHUF(X,X,X,X));
+	    emit_pack_store_4ub(p, x86_make_disp(dest, -3), temp); /* overkill! */
+	    update_src_ptr(p, srcECX, vtxESI, a);
+	 }
+	 else {
+	    printf("Can't emit 1ub %x %x %d\n", a->vertoffset, a[-1].vertoffset, a[-1].vertattrsize );
+	    return GL_FALSE;
+	 }
+	 break;
+      case EMIT_3UB_3F_RGB:
+      case EMIT_3UB_3F_BGR:
+	 /* Test for 3UB + PAD1:
+	  */
+	 if (j == vtx->attr_count - 1 ||
+	     a[1].vertoffset >= a->vertoffset + 4) {
+	    get_src_ptr(p, srcECX, vtxESI, a);
+	    emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);
+	    if (a->format == EMIT_3UB_3F_BGR)
+	       sse_shufps(&p->func, temp, temp, SHUF(Z,Y,X,W));
+	    emit_pack_store_4ub(p, dest, temp);
+	    update_src_ptr(p, srcECX, vtxESI, a);
+	 }
+	 /* Test for 3UB + 1UB:
+	  */
+	 else if (j < vtx->attr_count - 1 &&
+		  a[1].format == EMIT_1UB_1F &&
+		  a[1].vertoffset == a->vertoffset + 3) {
+	    get_src_ptr(p, srcECX, vtxESI, a);
+	    emit_load(p, temp, 3, x86_deref(srcECX), a->inputsize);
+	    update_src_ptr(p, srcECX, vtxESI, a);
+
+	    /* Make room for incoming value:
+	     */
+	    sse_shufps(&p->func, temp, temp, SHUF(W,X,Y,Z));
+
+	    get_src_ptr(p, srcECX, vtxESI, &a[1]);
+	    emit_load(p, temp2, 1, x86_deref(srcECX), a[1].inputsize);
+	    sse_movss(&p->func, temp, temp2);
+	    update_src_ptr(p, srcECX, vtxESI, &a[1]);
+
+	    /* Rearrange and possibly do BGR conversion:
+	     */
+	    if (a->format == EMIT_3UB_3F_BGR)
+	       sse_shufps(&p->func, temp, temp, SHUF(W,Z,Y,X));
+	    else
+	       sse_shufps(&p->func, temp, temp, SHUF(Y,Z,W,X));
+
+	    emit_pack_store_4ub(p, dest, temp);
+	    j++;		/* NOTE: two attrs consumed */
+	 }
+	 else {
+	    printf("Can't emit 3ub\n");
+	    return GL_FALSE;	/* add this later */
+	 }
+	 break;
+
+      case EMIT_4UB_4F_RGBA:
+	 get_src_ptr(p, srcECX, vtxESI, a);
+	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+	 emit_pack_store_4ub(p, dest, temp);
+	 update_src_ptr(p, srcECX, vtxESI, a);
+	 break;
+      case EMIT_4UB_4F_BGRA:
+	 get_src_ptr(p, srcECX, vtxESI, a);
+	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+	 sse_shufps(&p->func, temp, temp, SHUF(Z,Y,X,W));
+	 emit_pack_store_4ub(p, dest, temp);
+	 update_src_ptr(p, srcECX, vtxESI, a);
+	 break;
+      case EMIT_4UB_4F_ARGB:
+	 get_src_ptr(p, srcECX, vtxESI, a);
+	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+	 sse_shufps(&p->func, temp, temp, SHUF(W,X,Y,Z));
+	 emit_pack_store_4ub(p, dest, temp);
+	 update_src_ptr(p, srcECX, vtxESI, a);
+	 break;
+      case EMIT_4UB_4F_ABGR:
+	 get_src_ptr(p, srcECX, vtxESI, a);
+	 emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+	 sse_shufps(&p->func, temp, temp, SHUF(W,Z,Y,X));
+	 emit_pack_store_4ub(p, dest, temp);
+	 update_src_ptr(p, srcECX, vtxESI, a);
+	 break;
+      case EMIT_4CHAN_4F_RGBA:
+	 switch (CHAN_TYPE) {
+	 case GL_UNSIGNED_BYTE:
+	    get_src_ptr(p, srcECX, vtxESI, a);
+	    emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+	    emit_pack_store_4ub(p, dest, temp);
+	    update_src_ptr(p, srcECX, vtxESI, a);
+	    break;
+	 case GL_FLOAT:
+	    get_src_ptr(p, srcECX, vtxESI, a);
+	    emit_load(p, temp, 4, x86_deref(srcECX), a->inputsize);
+	    emit_store(p, dest, 4, temp);
+	    update_src_ptr(p, srcECX, vtxESI, a);
+	    break;
+	 case GL_UNSIGNED_SHORT:
+	 default:
+	    printf("unknown CHAN_TYPE %s\n", _mesa_lookup_enum_by_nr(CHAN_TYPE));
+	    return GL_FALSE;
+	 }
+	 break;
+      default:
+	 printf("unknown a[%d].format %d\n", j, a->format);
+	 return GL_FALSE;	/* catch any new opcodes */
+      }
+      
+      /* Increment j by at least 1 - may have been incremented above also:
+       */
+      j++;
+   }
+
+   /* Next vertex:
+    */
+   x86_lea(&p->func, vertexEAX, x86_make_disp(vertexEAX, vtx->vertex_size));
+
+   /* decr count, loop if not zero
+    */
+   x86_dec(&p->func, countEBP);
+   x86_test(&p->func, countEBP, countEBP); 
+   x86_jcc(&p->func, cc_NZ, label);
+
+   /* Exit mmx state?
+    */
+   if (p->func.need_emms)
+      mmx_emms(&p->func);
+
+   /* Land forward jump here:
+    */
+   x86_fixup_fwd_jump(&p->func, fixup);
+
+   /* Pop regs and return
+    */
+   x86_pop(&p->func, x86_get_base_reg(vtxESI));
+   x86_pop(&p->func, countEBP);
+   x86_ret(&p->func);
+
+   assert(!vtx->emit);
+   vtx->emit = (tnl_emit_func)x86_get_func(&p->func);
+
+   assert( (char *) p->func.csr - (char *) p->func.store <= MAX_SSE_CODE_SIZE );
+   return GL_TRUE;
+}
+
+
+
+void _tnl_generate_sse_emit( struct gl_context *ctx )
+{
+   struct tnl_clipspace *vtx = GET_VERTEX_STATE(ctx);
+   struct x86_program p;   
+
+   if (!cpu_has_xmm) {
+      vtx->codegen_emit = NULL;
+      return;
+   }
+
+   memset(&p, 0, sizeof(p));
+
+   p.ctx = ctx;
+   p.inputs_safe = 0;		/* for now */
+   p.outputs_safe = 0;		/* for now */
+   p.have_sse2 = cpu_has_xmm2;
+   p.identity = x86_make_reg(file_XMM, 6);
+   p.chan0 = x86_make_reg(file_XMM, 7);
+
+   if (!x86_init_func_size(&p.func, MAX_SSE_CODE_SIZE)) {
+      vtx->emit = NULL;
+      return;
+   }
+
+   if (build_vertex_emit(&p)) {
+      _tnl_register_fastpath( vtx, GL_TRUE );
+   }
+   else {
+      /* Note the failure so that we don't keep trying to codegen an
+       * impossible state:
+       */
+      _tnl_register_fastpath( vtx, GL_FALSE );
+      x86_release_func(&p.func);
+   }
+}
+
+#else
+
+void _tnl_generate_sse_emit( struct gl_context *ctx )
+{
+   /* Dummy version for when USE_SSE_ASM not defined */
+}
+
+#endif