src/parsec/disk-image/parsec/parsec-benchmark/pkgs/libs/mesa/src/src/mesa/drivers/dri/tdfx/tdfx_vbtmp.h - public/gem5-resources - Git at Google

 /*
  * Mesa 3-D graphics library
  * Version:  4.1
  *
  * Copyright (C) 1999-2002  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.
  */

 /* Authors:
  *    Keith Whitwell <keith@tungstengraphics.com>
  *    Daniel Borca <dborca@users.sourceforge.net>
  */


 #define VIEWPORT_X(dst,x) dst = s[0]  * x + s[12]
 #define VIEWPORT_Y(dst,y) dst = s[5]  * y + s[13]
 #define VIEWPORT_Z(dst,z) dst = s[10] * z + s[14]


 static void TAG(emit)( GLcontext *ctx,
 		       GLuint start, GLuint end,
 		       void *dest )
 {
    tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
    struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
    GLuint tmu0_source = fxMesa->tmu_source[0];
    GLuint tmu1_source = fxMesa->tmu_source[1];
    GLfloat (*tc0)[4], (*tc1)[4];
    GLfloat (*col)[4];
    GLuint tc0_stride, tc1_stride, col_stride;
    GLuint tc0_size, tc1_size, col_size;
    GLfloat (*proj)[4] = VB->NdcPtr->data;
    GLuint proj_stride = VB->NdcPtr->stride;
    GLfloat (*fog)[4];
    GLuint fog_stride;
    tdfxVertex *v = (tdfxVertex *)dest;
    GLfloat u0scale,v0scale,u1scale,v1scale;
    const GLubyte *mask = VB->ClipMask;
    const GLfloat *s = fxMesa->hw_viewport;
    int i;

 /*     fprintf(stderr, "%s\n", __FUNCTION__); */

    if (IND & TDFX_TEX0_BIT) {
       tc0_stride = VB->TexCoordPtr[tmu0_source]->stride;
       tc0 = VB->TexCoordPtr[tmu0_source]->data;
       u0scale = fxMesa->sScale0;
       v0scale = fxMesa->tScale0;
       if (IND & TDFX_PTEX_BIT)
 	 tc0_size = VB->TexCoordPtr[tmu0_source]->size;
    }

    if (IND & TDFX_TEX1_BIT) {
       tc1 = VB->TexCoordPtr[tmu1_source]->data;
       tc1_stride = VB->TexCoordPtr[tmu1_source]->stride;
       u1scale = fxMesa->sScale1;
       v1scale = fxMesa->tScale1;
       if (IND & TDFX_PTEX_BIT)
 	 tc1_size = VB->TexCoordPtr[tmu1_source]->size;
    }

    if (IND & TDFX_RGBA_BIT) {
       col = VB->ColorPtr[0]->data;
       col_stride = VB->ColorPtr[0]->stride;
       col_size = VB->ColorPtr[0]->size;
    }

    if (IND & TDFX_FOGC_BIT) {
       fog = VB->FogCoordPtr->data;
       fog_stride = VB->FogCoordPtr->stride;
    }

    {
       /* May have nonstandard strides:
        */
       if (start) {
 	 proj =  (GLfloat (*)[4])((GLubyte *)proj + start * proj_stride);
 	 if (IND & TDFX_TEX0_BIT)
 	    tc0 =  (GLfloat (*)[4])((GLubyte *)tc0 + start * tc0_stride);
 	 if (IND & TDFX_TEX1_BIT)
 	    tc1 =  (GLfloat (*)[4])((GLubyte *)tc1 + start * tc1_stride);
 	 if (IND & TDFX_RGBA_BIT)
 	    STRIDE_4F(col, start * col_stride);
 	 if (IND & TDFX_FOGC_BIT)
 	    STRIDE_4F(fog, start * fog_stride);
       }

       for (i=start; i < end; i++, v++) {
 	 if (IND & TDFX_XYZ_BIT) {
 	    if (mask[i] == 0) {
                /* unclipped */
 	       VIEWPORT_X(v->x, proj[0][0]);
 	       VIEWPORT_Y(v->y, proj[0][1]);
 	       VIEWPORT_Z(v->z, proj[0][2]);
 	       v->rhw = proj[0][3];
 	    } else {
                /* clipped */
                v->rhw = 1.0;
 	    }
 	    proj =  (GLfloat (*)[4])((GLubyte *)proj +  proj_stride);
 	 }
 	 if (IND & TDFX_RGBA_BIT) {
 	    UNCLAMPED_FLOAT_TO_UBYTE(v->color[0], col[0][2]);
 	    UNCLAMPED_FLOAT_TO_UBYTE(v->color[1], col[0][1]);
 	    UNCLAMPED_FLOAT_TO_UBYTE(v->color[2], col[0][0]);
 	    if (col_size == 4) {
 	       UNCLAMPED_FLOAT_TO_UBYTE(v->color[3], col[0][3]);
 	    } else {
 	       v->color[3] = 255;
 	    }
 	    STRIDE_4F(col, col_stride);
 	 }
 	 if (IND & TDFX_FOGC_BIT) {
 	    v->fog = CLAMP(fog[0][0], 0.0f, 1.0f);
 	    STRIDE_4F(fog, fog_stride);
 	 }
 	 if (IND & TDFX_TEX0_BIT) {
 	    GLfloat w = v->rhw;
 	    v->tu0 = tc0[0][0] * u0scale * w;
 	    v->tv0 = tc0[0][1] * v0scale * w;
 	    if (IND & TDFX_PTEX_BIT) {
 	       v->tq0 = w;
 	       if (tc0_size == 4)
 		  v->tq0 = tc0[0][3] * w;
 	    }
 	    tc0 =  (GLfloat (*)[4])((GLubyte *)tc0 +  tc0_stride);
 	 }
 	 if (IND & TDFX_TEX1_BIT) {
 	    GLfloat w = v->rhw;
 	    v->tu1 = tc1[0][0] * u1scale * w;
 	    v->tv1 = tc1[0][1] * v1scale * w;
 	    if (IND & TDFX_PTEX_BIT) {
 	       v->tq1 = w;
 	       if (tc1_size == 4)
 		  v->tq1 = tc1[0][3] * w;
 	    }
 	    tc1 =  (GLfloat (*)[4])((GLubyte *)tc1 +  tc1_stride);
 	 }
       }
    }
 }


 static GLboolean TAG(check_tex_sizes)( GLcontext *ctx )
 {
 /*     fprintf(stderr, "%s\n", __FUNCTION__); */

    if (IND & TDFX_PTEX_BIT)
       return GL_TRUE;

    if (IND & TDFX_TEX0_BIT) {
       struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;

       if (IND & TDFX_TEX1_BIT) {
 	 if (VB->TexCoordPtr[0] == 0)
 	    VB->TexCoordPtr[0] = VB->TexCoordPtr[1];

 	 if (VB->TexCoordPtr[1]->size == 4)
 	    return GL_FALSE;
       }

       if (VB->TexCoordPtr[0]->size == 4)
 	 return GL_FALSE;
    }

    return GL_TRUE;
 }


 static void TAG(interp)( GLcontext *ctx,
 			 GLfloat t,
 			 GLuint edst, GLuint eout, GLuint ein,
 			 GLboolean force_boundary )
 {
    tdfxContextPtr fxMesa = TDFX_CONTEXT( ctx );
    struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
    const GLfloat *dstclip = VB->ClipPtr->data[edst];
    const GLfloat oow = (dstclip[3] == 0.0F) ? 1.0F : (1.0F / dstclip[3]);
    const GLfloat *s = fxMesa->hw_viewport;
    tdfxVertex *dst = fxMesa->verts + edst;
    const tdfxVertex *out = fxMesa->verts + eout;
    const tdfxVertex *in = fxMesa->verts + ein;
    const GLfloat wout = oow / out->rhw;
    const GLfloat win = oow / in->rhw;

    VIEWPORT_X(dst->x, dstclip[0] * oow);
    VIEWPORT_Y(dst->y, dstclip[1] * oow);
    VIEWPORT_Z(dst->z, dstclip[2] * oow);
    dst->rhw = oow;

    INTERP_UB( t, dst->color[0], out->color[0],   in->color[0] );
    INTERP_UB( t, dst->color[1], out->color[1],   in->color[1] );
    INTERP_UB( t, dst->color[2], out->color[2],   in->color[2] );
    INTERP_UB( t, dst->color[3], out->color[3],   in->color[3] );

    if (IND & TDFX_FOGC_BIT) {
       INTERP_F( t, dst->fog, out->fog, in->fog );
    }

    if (IND & TDFX_TEX0_BIT) {
       INTERP_F( t, dst->tu0, out->tu0 * wout, in->tu0 * win );
       INTERP_F( t, dst->tv0, out->tv0 * wout, in->tv0 * win );
       if (IND & TDFX_PTEX_BIT) {
          INTERP_F( t, dst->tq0, out->tq0 * wout, in->tq0 * win );
       }
    }
    if (IND & TDFX_TEX1_BIT) {
      INTERP_F( t, dst->tu1, out->tu1 * wout, in->tu1 * win );
      INTERP_F( t, dst->tv1, out->tv1 * wout, in->tv1 * win );
      if (IND & TDFX_PTEX_BIT) {
         INTERP_F( t, dst->tq1, out->tq1 * wout, in->tq1 * win );
      }
    }
 }


 static void TAG(init)( void )
 {
 /*     fprintf(stderr, "%s\n", __FUNCTION__); */

    setup_tab[IND].emit = TAG(emit);
    setup_tab[IND].check_tex_sizes = TAG(check_tex_sizes);
    setup_tab[IND].interp = TAG(interp);
    setup_tab[IND].copy_pv = copy_pv;

    if (IND & TDFX_TEX1_BIT) {
       if (IND & TDFX_PTEX_BIT) {
 	 setup_tab[IND].vertex_format = TDFX_LAYOUT_PROJ2;
       }
       else {
 	 setup_tab[IND].vertex_format = TDFX_LAYOUT_MULTI;
       }
    }
    else if (IND & TDFX_TEX0_BIT) {
       if (IND & TDFX_PTEX_BIT) {
 	 setup_tab[IND].vertex_format = TDFX_LAYOUT_PROJ1;
       } else {
 	 setup_tab[IND].vertex_format = TDFX_LAYOUT_SINGLE;
       }
    }
    else if (IND & TDFX_W_BIT) {
       setup_tab[IND].vertex_format = TDFX_LAYOUT_NOTEX;
    } else {
       setup_tab[IND].vertex_format = TDFX_LAYOUT_TINY;
    }
 }


 #undef IND
 #undef TAG
	/*
	* Mesa 3-D graphics library
	* Version: 4.1
	*
	* Copyright (C) 1999-2002 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.
	*/

	/* Authors:
	* Keith Whitwell <keith@tungstengraphics.com>
	* Daniel Borca <dborca@users.sourceforge.net>
	*/


	#define VIEWPORT_X(dst,x) dst = s[0] * x + s[12]
	#define VIEWPORT_Y(dst,y) dst = s[5] * y + s[13]
	#define VIEWPORT_Z(dst,z) dst = s[10] * z + s[14]


	static void TAG(emit)( GLcontext *ctx,
	GLuint start, GLuint end,
	void *dest )
	{
	tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
	struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
	GLuint tmu0_source = fxMesa->tmu_source[0];
	GLuint tmu1_source = fxMesa->tmu_source[1];
	GLfloat (tc0)[4], (tc1)[4];
	GLfloat (*col)[4];
	GLuint tc0_stride, tc1_stride, col_stride;
	GLuint tc0_size, tc1_size, col_size;
	GLfloat (*proj)[4] = VB->NdcPtr->data;
	GLuint proj_stride = VB->NdcPtr->stride;
	GLfloat (*fog)[4];
	GLuint fog_stride;
	tdfxVertex v = (tdfxVertex )dest;
	GLfloat u0scale,v0scale,u1scale,v1scale;
	const GLubyte *mask = VB->ClipMask;
	const GLfloat *s = fxMesa->hw_viewport;
	int i;

	/* fprintf(stderr, "%s\n", __FUNCTION__); */

	if (IND & TDFX_TEX0_BIT) {
	tc0_stride = VB->TexCoordPtr[tmu0_source]->stride;
	tc0 = VB->TexCoordPtr[tmu0_source]->data;
	u0scale = fxMesa->sScale0;
	v0scale = fxMesa->tScale0;
	if (IND & TDFX_PTEX_BIT)
	tc0_size = VB->TexCoordPtr[tmu0_source]->size;
	}

	if (IND & TDFX_TEX1_BIT) {
	tc1 = VB->TexCoordPtr[tmu1_source]->data;
	tc1_stride = VB->TexCoordPtr[tmu1_source]->stride;
	u1scale = fxMesa->sScale1;
	v1scale = fxMesa->tScale1;
	if (IND & TDFX_PTEX_BIT)
	tc1_size = VB->TexCoordPtr[tmu1_source]->size;
	}

	if (IND & TDFX_RGBA_BIT) {
	col = VB->ColorPtr[0]->data;
	col_stride = VB->ColorPtr[0]->stride;
	col_size = VB->ColorPtr[0]->size;
	}

	if (IND & TDFX_FOGC_BIT) {
	fog = VB->FogCoordPtr->data;
	fog_stride = VB->FogCoordPtr->stride;
	}

	{
	/* May have nonstandard strides:
	*/
	if (start) {
	proj = (GLfloat ()[4])((GLubyte )proj + start * proj_stride);
	if (IND & TDFX_TEX0_BIT)
	tc0 = (GLfloat ()[4])((GLubyte )tc0 + start * tc0_stride);
	if (IND & TDFX_TEX1_BIT)
	tc1 = (GLfloat ()[4])((GLubyte )tc1 + start * tc1_stride);
	if (IND & TDFX_RGBA_BIT)
	STRIDE_4F(col, start * col_stride);
	if (IND & TDFX_FOGC_BIT)
	STRIDE_4F(fog, start * fog_stride);
	}

	for (i=start; i < end; i++, v++) {
	if (IND & TDFX_XYZ_BIT) {
	if (mask[i] == 0) {
	/* unclipped */
	VIEWPORT_X(v->x, proj[0][0]);
	VIEWPORT_Y(v->y, proj[0][1]);
	VIEWPORT_Z(v->z, proj[0][2]);
	v->rhw = proj[0][3];
	} else {
	/* clipped */
	v->rhw = 1.0;
	}
	proj = (GLfloat ()[4])((GLubyte )proj + proj_stride);
	}
	if (IND & TDFX_RGBA_BIT) {
	UNCLAMPED_FLOAT_TO_UBYTE(v->color[0], col[0][2]);
	UNCLAMPED_FLOAT_TO_UBYTE(v->color[1], col[0][1]);
	UNCLAMPED_FLOAT_TO_UBYTE(v->color[2], col[0][0]);
	if (col_size == 4) {
	UNCLAMPED_FLOAT_TO_UBYTE(v->color[3], col[0][3]);
	} else {
	v->color[3] = 255;
	}
	STRIDE_4F(col, col_stride);
	}
	if (IND & TDFX_FOGC_BIT) {
	v->fog = CLAMP(fog[0][0], 0.0f, 1.0f);
	STRIDE_4F(fog, fog_stride);
	}
	if (IND & TDFX_TEX0_BIT) {
	GLfloat w = v->rhw;
	v->tu0 = tc0[0][0] * u0scale * w;
	v->tv0 = tc0[0][1] * v0scale * w;
	if (IND & TDFX_PTEX_BIT) {
	v->tq0 = w;
	if (tc0_size == 4)
	v->tq0 = tc0[0][3] * w;
	}
	tc0 = (GLfloat ()[4])((GLubyte )tc0 + tc0_stride);
	}
	if (IND & TDFX_TEX1_BIT) {
	GLfloat w = v->rhw;
	v->tu1 = tc1[0][0] * u1scale * w;
	v->tv1 = tc1[0][1] * v1scale * w;
	if (IND & TDFX_PTEX_BIT) {
	v->tq1 = w;
	if (tc1_size == 4)
	v->tq1 = tc1[0][3] * w;
	}
	tc1 = (GLfloat ()[4])((GLubyte )tc1 + tc1_stride);
	}
	}
	}
	}


	static GLboolean TAG(check_tex_sizes)( GLcontext *ctx )
	{
	/* fprintf(stderr, "%s\n", __FUNCTION__); */

	if (IND & TDFX_PTEX_BIT)
	return GL_TRUE;

	if (IND & TDFX_TEX0_BIT) {
	struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;

	if (IND & TDFX_TEX1_BIT) {
	if (VB->TexCoordPtr[0] == 0)
	VB->TexCoordPtr[0] = VB->TexCoordPtr[1];

	if (VB->TexCoordPtr[1]->size == 4)
	return GL_FALSE;
	}

	if (VB->TexCoordPtr[0]->size == 4)
	return GL_FALSE;
	}

	return GL_TRUE;
	}


	static void TAG(interp)( GLcontext *ctx,
	GLfloat t,
	GLuint edst, GLuint eout, GLuint ein,
	GLboolean force_boundary )
	{
	tdfxContextPtr fxMesa = TDFX_CONTEXT( ctx );
	struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
	const GLfloat *dstclip = VB->ClipPtr->data[edst];
	const GLfloat oow = (dstclip[3] == 0.0F) ? 1.0F : (1.0F / dstclip[3]);
	const GLfloat *s = fxMesa->hw_viewport;
	tdfxVertex *dst = fxMesa->verts + edst;
	const tdfxVertex *out = fxMesa->verts + eout;
	const tdfxVertex *in = fxMesa->verts + ein;
	const GLfloat wout = oow / out->rhw;
	const GLfloat win = oow / in->rhw;

	VIEWPORT_X(dst->x, dstclip[0] * oow);
	VIEWPORT_Y(dst->y, dstclip[1] * oow);
	VIEWPORT_Z(dst->z, dstclip[2] * oow);
	dst->rhw = oow;

	INTERP_UB( t, dst->color[0], out->color[0], in->color[0] );
	INTERP_UB( t, dst->color[1], out->color[1], in->color[1] );
	INTERP_UB( t, dst->color[2], out->color[2], in->color[2] );
	INTERP_UB( t, dst->color[3], out->color[3], in->color[3] );

	if (IND & TDFX_FOGC_BIT) {
	INTERP_F( t, dst->fog, out->fog, in->fog );
	}

	if (IND & TDFX_TEX0_BIT) {
	INTERP_F( t, dst->tu0, out->tu0 * wout, in->tu0 * win );
	INTERP_F( t, dst->tv0, out->tv0 * wout, in->tv0 * win );
	if (IND & TDFX_PTEX_BIT) {
	INTERP_F( t, dst->tq0, out->tq0 * wout, in->tq0 * win );
	}
	}
	if (IND & TDFX_TEX1_BIT) {
	INTERP_F( t, dst->tu1, out->tu1 * wout, in->tu1 * win );
	INTERP_F( t, dst->tv1, out->tv1 * wout, in->tv1 * win );
	if (IND & TDFX_PTEX_BIT) {
	INTERP_F( t, dst->tq1, out->tq1 * wout, in->tq1 * win );
	}
	}
	}


	static void TAG(init)( void )
	{
	/* fprintf(stderr, "%s\n", __FUNCTION__); */

	setup_tab[IND].emit = TAG(emit);
	setup_tab[IND].check_tex_sizes = TAG(check_tex_sizes);
	setup_tab[IND].interp = TAG(interp);
	setup_tab[IND].copy_pv = copy_pv;

	if (IND & TDFX_TEX1_BIT) {
	if (IND & TDFX_PTEX_BIT) {
	setup_tab[IND].vertex_format = TDFX_LAYOUT_PROJ2;
	}
	else {
	setup_tab[IND].vertex_format = TDFX_LAYOUT_MULTI;
	}
	}
	else if (IND & TDFX_TEX0_BIT) {
	if (IND & TDFX_PTEX_BIT) {
	setup_tab[IND].vertex_format = TDFX_LAYOUT_PROJ1;
	} else {
	setup_tab[IND].vertex_format = TDFX_LAYOUT_SINGLE;
	}
	}
	else if (IND & TDFX_W_BIT) {
	setup_tab[IND].vertex_format = TDFX_LAYOUT_NOTEX;
	} else {
	setup_tab[IND].vertex_format = TDFX_LAYOUT_TINY;
	}
	}


	#undef IND
	#undef TAG