| 1 | /* -*- mode: C; tab-width:8; c-basic-offset:2 -*- */
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| 2 |
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| 3 | /*
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| 4 | * Mesa 3-D graphics library
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| 5 | * Version: 3.3
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| 6 | *
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| 7 | * Copyright (C) 1999 Brian Paul All Rights Reserved.
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 10 | * copy of this software and associated documentation files (the "Software"),
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| 11 | * to deal in the Software without restriction, including without limitation
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the
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| 14 | * Software is furnished to do so, subject to the following conditions:
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| 15 | *
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| 16 | * The above copyright notice and this permission notice shall be included
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| 17 | * in all copies or substantial portions of the Software.
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| 18 | *
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 25 | *
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| 26 | *
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| 27 | * Original Mesa / 3Dfx device driver (C) 1999 David Bucciarelli, by the
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| 28 | * terms stated above.
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| 29 | *
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| 30 | * Thank you for your contribution, David!
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| 31 | *
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| 32 | * Please make note of the above copyright/license statement. If you
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| 33 | * contributed code or bug fixes to this code under the previous (GNU
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| 34 | * Library) license and object to the new license, your code will be
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| 35 | * removed at your request. Please see the Mesa docs/COPYRIGHT file
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| 36 | * for more information.
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| 37 | *
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| 38 | * Additional Mesa/3Dfx driver developers:
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| 39 | * Daryll Strauss <daryll@precisioninsight.com>
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| 40 | * Keith Whitwell <keith@precisioninsight.com>
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| 41 | *
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| 42 | * See fxapi.h for more revision/author details.
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| 43 | */
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| 44 |
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| 45 |
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| 46 | #ifndef _FXVSETUP_H_
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| 47 | #define _FXVSETUP_H_
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| 48 |
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| 49 |
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| 50 | #define VARS_W
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| 51 |
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| 52 | #define VARS_Z
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| 53 |
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| 54 | #define VARS_TMU0 \
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| 55 | GLuint tmu0_source = fxMesa->tmu_source[0]; \
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| 56 | GLfloat *tmu0_data = VEC_ELT(VB->TexCoordPtr[tmu0_source], \
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| 57 | GLfloat, start); \
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| 58 | GLuint tmu0_stride = VB->TexCoordPtr[tmu0_source]->stride; \
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| 59 | GLuint tmu0_sz = VB->TexCoordPtr[tmu0_source]->size; \
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| 60 | struct gl_texture_unit *t0 = &ctx->Texture.Unit[tmu0_source]; \
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| 61 | GLfloat sscale0 = FX_TEXTURE_DATA(t0)->sScale; \
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| 62 | GLfloat tscale0 = FX_TEXTURE_DATA(t0)->tScale;
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| 63 |
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| 64 | #define VARS_TMU1 \
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| 65 | GLuint tmu1_source = fxMesa->tmu_source[1]; \
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| 66 | GLfloat *tmu1_data = VEC_ELT(VB->TexCoordPtr[tmu1_source], \
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| 67 | GLfloat, start); \
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| 68 | GLuint tmu1_stride = VB->TexCoordPtr[tmu1_source]->stride; \
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| 69 | GLuint tmu1_sz = VB->TexCoordPtr[tmu1_source]->size; \
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| 70 | struct gl_texture_unit *t1 = &ctx->Texture.Unit[tmu1_source]; \
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| 71 | GLfloat sscale1 = FX_TEXTURE_DATA(t1)->sScale; \
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| 72 | GLfloat tscale1 = FX_TEXTURE_DATA(t1)->tScale;
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| 73 |
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| 74 | #define VARS_RGBA \
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| 75 | GLubyte *color = VEC_ELT(VB->ColorPtr, GLubyte, start); \
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| 76 | GLuint col_stride = VB->ColorPtr->stride;
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| 77 |
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| 78 | #define VARS_XY GLfloat *win = VB->Win.data[start];
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| 79 |
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| 80 | #define INCR_XY win += 4
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| 81 |
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| 82 |
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| 83 | #ifdef FX_V2
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| 84 | # define DO_SETUP_XY \
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| 85 | v[XCOORD]=win[0]; \
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| 86 | v[YCOORD]=win[1];
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| 87 | #else
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| 88 | #ifdef DRIVERTS
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| 89 | # define DO_SETUP_XY \
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| 90 | v[XCOORD]=win[0]+fxMesa->x_offset; \
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| 91 | v[YCOORD]=win[1]+fxMesa->y_delta;
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| 92 | #else
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| 93 | # if (defined(__linux__) && defined(__i386__)) || defined(macintosh)
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| 94 | # define DO_SETUP_XY { \
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| 95 | GLfloat t1 = win[0] + snapper; \
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| 96 | GLfloat t2 = win[1] + snapper; \
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| 97 | v[XCOORD] = t1 - snapper; \
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| 98 | v[YCOORD] = t2 - snapper; \
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| 99 | }
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| 100 | # else
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| 101 | # define DO_SETUP_XY { \
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| 102 | /* trunc (x,y) to multiple of 1/16 */ \
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| 103 | v[XCOORD]=((int)(win[0]*16.0f))*(1.0f/16.0f); \
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| 104 | v[YCOORD]=((int)(win[1]*16.0f))*(1.0f/16.0f); \
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| 105 | }
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| 106 | # endif
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| 107 | #endif
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| 108 | #endif
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| 109 |
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| 110 |
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| 111 | #define DO_SETUP_W { \
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| 112 | v[OOWCOORD]=win[3]; \
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| 113 | }
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| 114 |
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| 115 | #define DO_SETUP_Z v[ZCOORD]=win[2];
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| 116 |
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| 117 | #define DO_SETUP_TMU0 \
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| 118 | { \
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| 119 | v[S0COORD]=sscale0*tmu0_data[0]*v[OOWCOORD]; \
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| 120 | v[T0COORD]=tscale0*tmu0_data[1]*v[OOWCOORD]; \
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| 121 | }
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| 122 |
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| 123 | #define INCR_TMU0 STRIDE_F(tmu0_data, tmu0_stride)
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| 124 |
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| 125 | #define DO_SETUP_TMU1 \
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| 126 | { \
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| 127 | v[S1COORD]=sscale1*tmu1_data[0]*v[OOWCOORD]; \
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| 128 | v[T1COORD]=tscale1*tmu1_data[1]*v[OOWCOORD]; \
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| 129 | }
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| 130 |
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| 131 | #define INCR_TMU1 STRIDE_F(tmu1_data, tmu1_stride)
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| 132 |
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| 133 | #if FX_USE_PARGB
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| 134 | #define DO_SETUP_RGBA \
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| 135 | { GET_PARGB(v) = color[ACOMP] << 24 | color[RCOMP] << 16 | color[GCOMP] << 8 | color[BCOMP];}
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| 136 |
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| 137 | #else
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| 138 | #define DO_SETUP_RGBA \
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| 139 | { \
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| 140 | UBYTE_COLOR_TO_FLOAT_255_COLOR2(v[RCOORD], color[0]); \
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| 141 | UBYTE_COLOR_TO_FLOAT_255_COLOR2(v[GCOORD], color[1]); \
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| 142 | UBYTE_COLOR_TO_FLOAT_255_COLOR2(v[BCOORD], color[2]); \
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| 143 | UBYTE_COLOR_TO_FLOAT_255_COLOR2(v[ACOORD], color[3]); \
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| 144 | }
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| 145 | #endif
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| 146 |
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| 147 | #define INCR_RGBA color += col_stride
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| 148 |
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| 149 |
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| 150 | #define _FIXUP_PRE \
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| 151 | GLuint hs = fxMesa->stw_hint_state & ~(GR_STWHINT_W_DIFF_TMU0 | \
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| 152 | GR_STWHINT_W_DIFF_TMU1);
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| 153 |
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| 154 | #define _FIXUP_TMU0 \
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| 155 | if (tmu0_sz == 4) { \
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| 156 | project_texcoords( VB, 0, tmu0_source, start, end ); \
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| 157 | hs |= GR_STWHINT_W_DIFF_TMU0; \
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| 158 | }
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| 159 |
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| 160 |
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| 161 | #define _FIXUP_TMU1 \
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| 162 | if (tmu1_sz == 4) { \
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| 163 | project_texcoords( VB, 1, tmu1_source, start, end ); \
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| 164 | hs |= GR_STWHINT_W_DIFF_TMU1; \
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| 165 | }
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| 166 |
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| 167 |
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| 168 | #define _FIXUP_TMU01 \
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| 169 | if (tmu0_sz == 4) { \
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| 170 | project_texcoords( VB, 0, tmu0_source, start, end ); \
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| 171 | if (tmu1_sz == 4) \
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| 172 | project_texcoords( VB, 1, tmu1_source, start, end ); \
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| 173 | else \
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| 174 | copy_w( VB, 1, start, end ); \
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| 175 | hs |= (GR_STWHINT_W_DIFF_TMU0|GR_STWHINT_W_DIFF_TMU1); \
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| 176 | } else if (tmu1_sz == 4) { \
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| 177 | project_texcoords( VB, 1, tmu1_source, start, end ); \
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| 178 | hs |= GR_STWHINT_W_DIFF_TMU1; \
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| 179 | }
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| 180 |
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| 181 | #define _FIXUP_POST \
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| 182 | if (hs != fxMesa->stw_hint_state) { \
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| 183 | fxMesa->stw_hint_state = hs; \
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| 184 | FX_grHints(GR_HINT_STWHINT, hs); \
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| 185 | }
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| 186 |
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| 187 |
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| 188 | #define FIXUP_TMU0 { _FIXUP_PRE _FIXUP_TMU0 _FIXUP_POST }
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| 189 | #define FIXUP_TMU1 { _FIXUP_PRE _FIXUP_TMU1 _FIXUP_POST }
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| 190 | #define FIXUP_TMU01 { _FIXUP_PRE _FIXUP_TMU01 _FIXUP_POST }
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| 191 |
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| 192 |
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| 193 | /* v - pointer to destination GrVertex
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| 194 | * VB - source of data
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| 195 | * i - index into vb for data
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| 196 | */
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| 197 |
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| 198 |
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| 199 | #endif
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