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/* $XFree86: xc/lib/GL/mesa/src/drv/tdfx/fxvsetup.h,v 1.1 2000/09/24 13:51:20 alanh Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.3
*
* Copyright (C) 1999-2000 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.
*
*
* Original Mesa / 3Dfx device driver (C) 1999 David Bucciarelli, by the
* terms stated above.
*
* Thank you for your contribution, David!
*
* Please make note of the above copyright/license statement. If you
* contributed code or bug fixes to this code under the previous (GNU
* Library) license and object to the new license, your code will be
* removed at your request. Please see the Mesa docs/COPYRIGHT file
* for more information.
*
* Additional Mesa/3Dfx driver developers:
* Daryll Strauss <daryll@precisioninsight.com>
* Keith Whitwell <keith@precisioninsight.com>
*
* See fxapi.h for more revision/author details.
*/
#ifndef _FXVSETUP_H_
#define _FXVSETUP_H_
#define VARS_W
#define VARS_Z
#define VARS_TMU0 \
GLuint tmu0_source = fxMesa->tmu_source[0]; \
GLfloat *tmu0_data = VEC_ELT(VB->TexCoordPtr[tmu0_source], \
GLfloat, start); \
GLuint tmu0_stride = VB->TexCoordPtr[tmu0_source]->stride; \
GLuint tmu0_sz = VB->TexCoordPtr[tmu0_source]->size; \
struct gl_texture_unit *t0 = &ctx->Texture.Unit[tmu0_source]; \
GLfloat sscale0 = FX_TEXTURE_DATA(t0)->sScale; \
GLfloat tscale0 = FX_TEXTURE_DATA(t0)->tScale;
#define VARS_TMU1 \
GLuint tmu1_source = fxMesa->tmu_source[1]; \
GLfloat *tmu1_data = VEC_ELT(VB->TexCoordPtr[tmu1_source], \
GLfloat, start); \
GLuint tmu1_stride = VB->TexCoordPtr[tmu1_source]->stride; \
GLuint tmu1_sz = VB->TexCoordPtr[tmu1_source]->size; \
struct gl_texture_unit *t1 = &ctx->Texture.Unit[tmu1_source]; \
GLfloat sscale1 = FX_TEXTURE_DATA(t1)->sScale; \
GLfloat tscale1 = FX_TEXTURE_DATA(t1)->tScale;
#define VARS_RGBA \
GLubyte *color = VEC_ELT(VB->ColorPtr, GLubyte, start); \
GLuint col_stride = VB->ColorPtr->stride;
#define VARS_XY GLfloat *win = VB->Win.data[start];
#define INCR_XY win += 4
#ifdef FX_V2
# define DO_SETUP_XY \
v[XCOORD]=win[0]; \
v[YCOORD]=win[1];
#else
#ifdef DRIVERTS
# define DO_SETUP_XY \
v[XCOORD]=win[0]+fxMesa->x_offset; \
v[YCOORD]=win[1]+fxMesa->y_delta;
#else
# if (defined(__linux__) && defined(__i386__)) || defined(macintosh)
# define DO_SETUP_XY { \
GLfloat t1 = win[0] + snapper; \
GLfloat t2 = win[1] + snapper; \
v[XCOORD] = t1 - snapper; \
v[YCOORD] = t2 - snapper; \
}
# else
# define DO_SETUP_XY { \
/* trunc (x,y) to multiple of 1/16 */ \
v[XCOORD]=((int)(win[0]*16.0f))*(1.0f/16.0f); \
v[YCOORD]=((int)(win[1]*16.0f))*(1.0f/16.0f); \
}
# endif
#endif
#endif
#define DO_SETUP_W { \
v[OOWCOORD]=win[3]; \
}
#define DO_SETUP_Z v[ZCOORD]=win[2];
#define DO_SETUP_TMU0 \
{ \
v[S0COORD]=sscale0*tmu0_data[0]*v[OOWCOORD]; \
v[T0COORD]=tscale0*tmu0_data[1]*v[OOWCOORD]; \
}
#define INCR_TMU0 STRIDE_F(tmu0_data, tmu0_stride)
#define DO_SETUP_TMU1 \
{ \
v[S1COORD]=sscale1*tmu1_data[0]*v[OOWCOORD]; \
v[T1COORD]=tscale1*tmu1_data[1]*v[OOWCOORD]; \
}
#define INCR_TMU1 STRIDE_F(tmu1_data, tmu1_stride)
#if FX_USE_PARGB
#define DO_SETUP_RGBA \
{ GET_PARGB(v) = color[ACOMP] << 24 | color[RCOMP] << 16 | color[GCOMP] << 8 | color[BCOMP];}
#else
#define DO_SETUP_RGBA \
{ \
UBYTE_COLOR_TO_FLOAT_255_COLOR2(v[RCOORD], color[0]); \
UBYTE_COLOR_TO_FLOAT_255_COLOR2(v[GCOORD], color[1]); \
UBYTE_COLOR_TO_FLOAT_255_COLOR2(v[BCOORD], color[2]); \
UBYTE_COLOR_TO_FLOAT_255_COLOR2(v[ACOORD], color[3]); \
}
#endif
#define INCR_RGBA color += col_stride
#define _FIXUP_PRE \
GLuint hs = fxMesa->stw_hint_state & ~(GR_STWHINT_W_DIFF_TMU0 | \
GR_STWHINT_W_DIFF_TMU1);
#define _FIXUP_TMU0 \
if (tmu0_sz == 4) { \
project_texcoords( VB, 0, tmu0_source, start, end ); \
hs |= GR_STWHINT_W_DIFF_TMU0; \
}
#define _FIXUP_TMU1 \
if (tmu1_sz == 4) { \
project_texcoords( VB, 1, tmu1_source, start, end ); \
hs |= GR_STWHINT_W_DIFF_TMU1; \
}
#define _FIXUP_TMU01 \
if (tmu0_sz == 4) { \
project_texcoords( VB, 0, tmu0_source, start, end ); \
if (tmu1_sz == 4) \
project_texcoords( VB, 1, tmu1_source, start, end ); \
else \
copy_w( VB, 1, start, end ); \
hs |= (GR_STWHINT_W_DIFF_TMU0|GR_STWHINT_W_DIFF_TMU1); \
} else if (tmu1_sz == 4) { \
project_texcoords( VB, 1, tmu1_source, start, end ); \
hs |= GR_STWHINT_W_DIFF_TMU1; \
}
#define _FIXUP_POST \
if (hs != fxMesa->stw_hint_state) { \
fxMesa->stw_hint_state = hs; \
FX_grHints(fxMesa, GR_HINT_STWHINT, hs); \
}
#define FIXUP_TMU0 { _FIXUP_PRE _FIXUP_TMU0 _FIXUP_POST }
#define FIXUP_TMU1 { _FIXUP_PRE _FIXUP_TMU1 _FIXUP_POST }
#define FIXUP_TMU01 { _FIXUP_PRE _FIXUP_TMU01 _FIXUP_POST }
/* v - pointer to destination GrVertex
* VB - source of data
* i - index into vb for data
*/
#endif
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