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/* $Id: sse_normal.s,v 1.1 2003-03-13 12:11:49 giacomo Exp $ */

/*
 * Mesa 3-D graphics library
 * Version:  3.5
 *
 * Copyright (C) 1999-2001  Brian Paul   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, sublicense,
 * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * BRIAN PAUL 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.
 */

/** TODO:
  * - insert PREFETCH instructions to avoid cache-misses !
  * - some more optimizations are possible...
  * - for 40-50% more performance in the SSE-functions, the
  *   data (trans-matrix, src_vert, dst_vert) needs to be 16byte aligned !
  */

#include "matypes.h"
#include "norm_args.h"

   SEG_TEXT

#define M(i)    REGOFF(i * 4, EDX)
#define S(i)    REGOFF(i * 4, ESI)
#define D(i)    REGOFF(i * 4, EDI)
#define STRIDE  REGOFF(12, ESI)


ALIGNTEXT16
GLOBL GLNAME(_mesa_sse_transform_rescale_normals_no_rot)
GLNAME(_mesa_sse_transform_rescale_normals_no_rot):

#define FRAME_OFFSET 8
        PUSH_L  ( ESI )
        PUSH_L  ( EDI )

        MOV_L   ( ARG_IN, ESI )                         /* ptr to source GLvector3f */
        MOV_L   ( ARG_DEST, EDI )                       /* ptr to dest GLvector3f */

        MOV_L   ( ARG_MAT, EDX )                        /* ptr to matrix */
        MOV_L   ( REGOFF(MATRIX_INV, EDX), EDX)         /* matrix->inv */

        MOV_L   ( REGOFF(V3F_COUNT, ESI), ECX )         /* source count */

        TEST_L  ( ECX, ECX )
        JZ( LLBL(K_G3TRNNRR_finish) )                   /* count was zero; go to finish */

        MOV_L   ( STRIDE, EAX )                         /* stride */
        MOV_L   ( ECX, REGOFF(V3F_COUNT, EDI) )         /* set dest-count */

        IMUL_L( CONST(16), ECX )                        /* count *= 16 */
        MOV_L( REGOFF(V3F_START, ESI), ESI )            /* ptr to first source vertex */

        MOV_L( REGOFF(V3F_START, EDI), EDI )            /* ptr to first dest vertex */
        ADD_L( EDI, ECX )                               /* count += dest ptr */

ALIGNTEXT32
        MOVSS   ( M(0), XMM1 )                          /* m0 */
        MOVSS   ( M(5), XMM2 )                          /* m5 */
        UNPCKLPS( XMM2, XMM1 )                          /* m5 | m0 */
        MOVSS   ( ARG_SCALE, XMM0 )                     /* scale */
        SHUFPS  ( CONST(0x0), XMM0, XMM0 )              /* scale | scale */
        MULPS   ( XMM0, XMM1 )                          /* m5*scale | m0*scale */
        MULSS   ( M(10), XMM0 )                         /* m10*scale */

ALIGNTEXT32
LLBL(K_G3TRNNRR_top):
        MOVLPS  ( S(0), XMM2 )                          /* uy | ux */
        MULPS   ( XMM1, XMM2 )                          /* uy*m5*scale | ux*m0*scale */
        MOVLPS  ( XMM2, D(0) )                          /* ->D(1) | D(0) */

        MOVSS   ( S(2), XMM2 )                          /* uz */
        MULSS   ( XMM0, XMM2 )                          /* uz*m10*scale */
        MOVSS   ( XMM2, D(2) )                          /* ->D(2) */

LLBL(K_G3TRNNRR_skip):
        ADD_L   ( CONST(16), EDI )
        ADD_L   ( EAX, ESI )
        CMP_L   ( ECX, EDI )
        JNE     ( LLBL(K_G3TRNNRR_top) )

LLBL(K_G3TRNNRR_finish):
        POP_L   ( EDI )
        POP_L   ( ESI )
        RET
#undef FRAME_OFFSET



ALIGNTEXT16
GLOBL GLNAME(_mesa_sse_transform_rescale_normals)
GLNAME(_mesa_sse_transform_rescale_normals):

#define FRAME_OFFSET 8
        PUSH_L  ( ESI )
        PUSH_L  ( EDI )

        MOV_L   ( ARG_IN, ESI )                         /* ptr to source GLvector3f */
        MOV_L   ( ARG_DEST, EDI )                       /* ptr to dest GLvector3f */

        MOV_L   ( ARG_MAT, EDX )                        /* ptr to matrix */
        MOV_L   ( REGOFF(MATRIX_INV, EDX), EDX)         /* matrix->inv */

        MOV_L   ( REGOFF(V3F_COUNT, ESI), ECX )         /* source count */

        TEST_L  ( ECX, ECX )
        JZ( LLBL(K_G3TRNR_finish) )                     /* count was zero; go to finish */

        MOV_L   ( STRIDE, EAX )                         /* stride */
        MOV_L   ( ECX, REGOFF(V3F_COUNT, EDI) )         /* set dest-count */

        IMUL_L( CONST(16), ECX )                        /* count *= 16 */
        MOV_L( REGOFF(V3F_START, ESI), ESI )            /* ptr to first source vertex */

        MOV_L( REGOFF(V3F_START, EDI), EDI )            /* ptr to first dest vertex */
        ADD_L( EDI, ECX )                               /* count += dest ptr */

ALIGNTEXT32
        MOVSS   ( M(0), XMM0 )                          /* m0 */
        MOVSS   ( M(4), XMM1 )                          /* m4 */
        UNPCKLPS( XMM1, XMM0 )                          /* m4 | m0 */

        MOVSS   ( ARG_SCALE, XMM4 )                     /* scale */
        SHUFPS  ( CONST(0x0), XMM4, XMM4 )              /* scale | scale */

        MULPS   ( XMM4, XMM0 )                          /* m4*scale | m0*scale */
        MOVSS   ( M(1), XMM1 )                          /* m1 */
        MOVSS   ( M(5), XMM2 )                          /* m5 */
        UNPCKLPS( XMM2, XMM1 )                          /* m5 | m1 */
        MULPS   ( XMM4, XMM1 )                          /* m5*scale | m1*scale */
        MOVSS   ( M(2), XMM2 )                          /* m2 */
        MOVSS   ( M(6), XMM3 )                          /* m6 */
        UNPCKLPS( XMM3, XMM2 )                          /* m6 | m2 */
        MULPS   ( XMM4, XMM2 )                          /* m6*scale | m2*scale */

        MOVSS   ( M(8), XMM6 )                          /* m8 */
        MULSS   ( ARG_SCALE, XMM6 )                     /* m8*scale */
        MOVSS   ( M(9), XMM7 )                          /* m9 */
        MULSS   ( ARG_SCALE, XMM7 )                     /* m9*scale */

ALIGNTEXT32
LLBL(K_G3TRNR_top):
        MOVSS   ( S(0), XMM3 )                          /* ux */
        SHUFPS  ( CONST(0x0), XMM3, XMM3 )              /* ux | ux */
        MULPS   ( XMM0, XMM3 )                          /* ux*m4 | ux*m0 */
        MOVSS   ( S(1), XMM4 )                          /* uy */
        SHUFPS  ( CONST(0x0), XMM4, XMM4 )              /* uy | uy */
        MULPS   ( XMM1, XMM4 )                          /* uy*m5 | uy*m1 */
        MOVSS   ( S(2), XMM5 )                          /* uz */
        SHUFPS  ( CONST(0x0), XMM5, XMM5 )              /* uz | uz */
        MULPS   ( XMM2, XMM5 )                          /* uz*m6 | uz*m2 */

        ADDPS   ( XMM4, XMM3 )
        ADDPS   ( XMM5, XMM3 )
        MOVLPS  ( XMM3, D(0) )

        MOVSS   ( M(10), XMM3 )                         /* m10 */
        MULSS   ( ARG_SCALE, XMM3 )                     /* m10*scale */
        MULSS   ( S(2), XMM3 )                          /* m10*scale*uz */
        MOVSS   ( S(1), XMM4 )                          /* uy */
        MULSS   ( XMM7, XMM4 )                          /* uy*m9*scale */
        MOVSS   ( S(0), XMM5 )                          /* ux */
        MULSS   ( XMM6, XMM5 )                          /* ux*m8*scale */

        ADDSS   ( XMM4, XMM3 )
        ADDSS   ( XMM5, XMM3 )
        MOVSS   ( XMM3, D(2) )

LLBL(K_G3TRNR_skip):
        ADD_L   ( CONST(16), EDI )
        ADD_L   ( EAX, ESI )
        CMP_L   ( ECX, EDI )
        JNE     ( LLBL(K_G3TRNR_top) )

LLBL(K_G3TRNR_finish):
        POP_L   ( EDI )
        POP_L   ( ESI )
        RET
#undef FRAME_OFFSET


ALIGNTEXT16
GLOBL GLNAME(_mesa_sse_transform_normals_no_rot)
GLNAME(_mesa_sse_transform_normals_no_rot):

#define FRAME_OFFSET 8
        PUSH_L  ( ESI )
        PUSH_L  ( EDI )

        MOV_L   ( ARG_IN, ESI )                         /* ptr to source GLvector3f */
        MOV_L   ( ARG_DEST, EDI )                       /* ptr to dest GLvector3f */

        MOV_L   ( ARG_MAT, EDX )                        /* ptr to matrix */
        MOV_L   ( REGOFF(MATRIX_INV, EDX), EDX)         /* matrix->inv */

        MOV_L   ( REGOFF(V3F_COUNT, ESI), ECX )         /* source count */

        TEST_L  ( ECX, ECX )
        JZ( LLBL(K_G3TNNRR_finish) )                    /* count was zero; go to finish */

        MOV_L   ( STRIDE, EAX )                         /* stride */
        MOV_L   ( ECX, REGOFF(V3F_COUNT, EDI) )         /* set dest-count */

        IMUL_L( CONST(16), ECX )                        /* count *= 16 */
        MOV_L( REGOFF(V3F_START, ESI), ESI )            /* ptr to first source vertex */

        MOV_L( REGOFF(V3F_START, EDI), EDI )            /* ptr to first dest vertex */
        ADD_L( EDI, ECX )                               /* count += dest ptr */

ALIGNTEXT32
        MOVSS( M(0), XMM0 )                             /* m0 */
        MOVSS( M(5), XMM1 )                             /* m5 */
        UNPCKLPS( XMM1, XMM0 )                          /* m5 | m0 */
        MOVSS( M(10), XMM1 )                            /* m10 */

ALIGNTEXT32
LLBL(K_G3TNNRR_top):
        MOVLPS( S(0), XMM2 )                            /* uy | ux */
        MULPS( XMM0, XMM2 )                             /* uy*m5 | ux*m0 */
        MOVLPS( XMM2, D(0) )

        MOVSS( S(2), XMM2 )                             /* uz */
        MULSS( XMM1, XMM2 )                             /* uz*m10 */
        MOVSS( XMM2, D(2) )

LLBL(K_G3TNNRR_skip):
        ADD_L   ( CONST(16), EDI )
        ADD_L   ( EAX, ESI )
        CMP_L   ( ECX, EDI )
        JNE     ( LLBL(K_G3TNNRR_top) )

LLBL(K_G3TNNRR_finish):
        POP_L   ( EDI )
        POP_L   ( ESI )
        RET
#undef FRAME_OFFSET