nkeynes@189 | 1 | /**
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nkeynes@322 | 2 | * $Id: rendcore.c,v 1.13 2007-01-25 08:18:03 nkeynes Exp $
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nkeynes@189 | 3 | *
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nkeynes@189 | 4 | * PVR2 renderer core.
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nkeynes@189 | 5 | *
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nkeynes@189 | 6 | * Copyright (c) 2005 Nathan Keynes.
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nkeynes@189 | 7 | *
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nkeynes@189 | 8 | * This program is free software; you can redistribute it and/or modify
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nkeynes@189 | 9 | * it under the terms of the GNU General Public License as published by
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nkeynes@189 | 10 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@189 | 11 | * (at your option) any later version.
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nkeynes@189 | 12 | *
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nkeynes@189 | 13 | * This program is distributed in the hope that it will be useful,
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nkeynes@189 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@189 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@189 | 16 | * GNU General Public License for more details.
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nkeynes@189 | 17 | */
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nkeynes@215 | 18 | #include <sys/time.h>
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nkeynes@189 | 19 | #include "pvr2/pvr2.h"
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nkeynes@189 | 20 | #include "asic.h"
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nkeynes@189 | 21 |
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nkeynes@221 | 22 | int pvr2_poly_depthmode[8] = { GL_NEVER, GL_LESS, GL_EQUAL, GL_LEQUAL,
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nkeynes@189 | 23 | GL_GREATER, GL_NOTEQUAL, GL_GEQUAL,
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nkeynes@189 | 24 | GL_ALWAYS };
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nkeynes@221 | 25 | int pvr2_poly_srcblend[8] = {
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nkeynes@189 | 26 | GL_ZERO, GL_ONE, GL_DST_COLOR, GL_ONE_MINUS_DST_COLOR,
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nkeynes@189 | 27 | GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_DST_ALPHA,
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nkeynes@189 | 28 | GL_ONE_MINUS_DST_ALPHA };
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nkeynes@221 | 29 | int pvr2_poly_dstblend[8] = {
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nkeynes@189 | 30 | GL_ZERO, GL_ONE, GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR,
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nkeynes@189 | 31 | GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_DST_ALPHA,
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nkeynes@189 | 32 | GL_ONE_MINUS_DST_ALPHA };
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nkeynes@221 | 33 | int pvr2_poly_texblend[4] = {
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nkeynes@322 | 34 | GL_REPLACE,
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nkeynes@322 | 35 | GL_MODULATE,
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nkeynes@322 | 36 | GL_DECAL,
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nkeynes@322 | 37 | GL_MODULATE
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nkeynes@322 | 38 | };
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nkeynes@221 | 39 | int pvr2_render_colour_format[8] = {
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nkeynes@189 | 40 | COLFMT_ARGB1555, COLFMT_RGB565, COLFMT_ARGB4444, COLFMT_ARGB1555,
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nkeynes@189 | 41 | COLFMT_RGB888, COLFMT_ARGB8888, COLFMT_ARGB8888, COLFMT_ARGB4444 };
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nkeynes@189 | 42 |
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nkeynes@189 | 43 |
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nkeynes@189 | 44 | #define CULL_NONE 0
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nkeynes@189 | 45 | #define CULL_SMALL 1
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nkeynes@189 | 46 | #define CULL_CCW 2
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nkeynes@189 | 47 | #define CULL_CW 3
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nkeynes@189 | 48 |
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nkeynes@189 | 49 | #define SEGMENT_END 0x80000000
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nkeynes@298 | 50 | #define SEGMENT_ZCLEAR 0x40000000
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nkeynes@189 | 51 | #define SEGMENT_SORT_TRANS 0x20000000
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nkeynes@189 | 52 | #define SEGMENT_START 0x10000000
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nkeynes@189 | 53 | #define SEGMENT_X(c) (((c) >> 2) & 0x3F)
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nkeynes@189 | 54 | #define SEGMENT_Y(c) (((c) >> 8) & 0x3F)
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nkeynes@189 | 55 | #define NO_POINTER 0x80000000
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nkeynes@189 | 56 |
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nkeynes@189 | 57 | extern char *video_base;
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nkeynes@189 | 58 |
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nkeynes@322 | 59 | gboolean pvr2_force_fragment_alpha = FALSE;
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nkeynes@318 | 60 |
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nkeynes@189 | 61 | struct tile_segment {
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nkeynes@189 | 62 | uint32_t control;
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nkeynes@189 | 63 | pvraddr_t opaque_ptr;
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nkeynes@189 | 64 | pvraddr_t opaquemod_ptr;
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nkeynes@189 | 65 | pvraddr_t trans_ptr;
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nkeynes@189 | 66 | pvraddr_t transmod_ptr;
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nkeynes@189 | 67 | pvraddr_t punchout_ptr;
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nkeynes@189 | 68 | };
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nkeynes@189 | 69 |
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nkeynes@189 | 70 | /**
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nkeynes@189 | 71 | * Convert a half-float (16-bit) FP number to a regular 32-bit float.
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nkeynes@189 | 72 | * Source is 1-bit sign, 5-bit exponent, 10-bit mantissa.
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nkeynes@189 | 73 | * TODO: Check the correctness of this.
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nkeynes@189 | 74 | */
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nkeynes@189 | 75 | float halftofloat( uint16_t half )
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nkeynes@189 | 76 | {
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nkeynes@189 | 77 | union {
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nkeynes@189 | 78 | float f;
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nkeynes@189 | 79 | uint32_t i;
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nkeynes@189 | 80 | } temp;
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nkeynes@308 | 81 | /* int e = ((half & 0x7C00) >> 10) - 15 + 127;
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nkeynes@189 | 82 |
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nkeynes@189 | 83 | temp.i = ((half & 0x8000) << 16) | (e << 23) |
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nkeynes@308 | 84 | ((half & 0x03FF) << 13); */
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nkeynes@308 | 85 | temp.i = ((uint32_t)half)<<16;
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nkeynes@189 | 86 | return temp.f;
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nkeynes@189 | 87 | }
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nkeynes@189 | 88 |
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nkeynes@189 | 89 |
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nkeynes@189 | 90 | /**
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nkeynes@189 | 91 | * Setup the GL context for the supplied polygon context.
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nkeynes@189 | 92 | * @param context pointer to 3 or 5 words of polygon context
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nkeynes@189 | 93 | * @param modified boolean flag indicating that the modified
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nkeynes@189 | 94 | * version should be used, rather than the normal version.
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nkeynes@189 | 95 | */
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nkeynes@189 | 96 | void render_set_context( uint32_t *context, int render_mode )
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nkeynes@189 | 97 | {
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nkeynes@189 | 98 | uint32_t poly1 = context[0], poly2, texture;
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nkeynes@189 | 99 | if( render_mode == RENDER_FULLMOD ) {
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nkeynes@189 | 100 | poly2 = context[3];
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nkeynes@189 | 101 | texture = context[4];
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nkeynes@189 | 102 | } else {
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nkeynes@189 | 103 | poly2 = context[1];
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nkeynes@189 | 104 | texture = context[2];
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nkeynes@189 | 105 | }
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nkeynes@189 | 106 |
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nkeynes@189 | 107 | if( POLY1_DEPTH_ENABLE(poly1) ) {
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nkeynes@189 | 108 | glEnable( GL_DEPTH_TEST );
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nkeynes@189 | 109 | glDepthFunc( POLY1_DEPTH_MODE(poly1) );
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nkeynes@189 | 110 | } else {
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nkeynes@189 | 111 | glDisable( GL_DEPTH_TEST );
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nkeynes@189 | 112 | }
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nkeynes@189 | 113 |
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nkeynes@189 | 114 | switch( POLY1_CULL_MODE(poly1) ) {
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nkeynes@189 | 115 | case CULL_NONE:
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nkeynes@189 | 116 | case CULL_SMALL:
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nkeynes@189 | 117 | glDisable( GL_CULL_FACE );
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nkeynes@189 | 118 | break;
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nkeynes@189 | 119 | case CULL_CCW:
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nkeynes@189 | 120 | glEnable( GL_CULL_FACE );
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nkeynes@189 | 121 | glFrontFace( GL_CW );
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nkeynes@189 | 122 | break;
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nkeynes@189 | 123 | case CULL_CW:
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nkeynes@189 | 124 | glEnable( GL_CULL_FACE );
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nkeynes@189 | 125 | glFrontFace( GL_CCW );
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nkeynes@189 | 126 | break;
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nkeynes@189 | 127 | }
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nkeynes@189 | 128 |
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nkeynes@318 | 129 | if( POLY1_SPECULAR(poly1) ) {
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nkeynes@318 | 130 | glEnable(GL_COLOR_SUM);
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nkeynes@318 | 131 | } else {
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nkeynes@318 | 132 | glDisable(GL_COLOR_SUM);
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nkeynes@318 | 133 | }
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nkeynes@318 | 134 |
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nkeynes@189 | 135 | if( POLY1_TEXTURED(poly1) ) {
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nkeynes@189 | 136 | int width = POLY2_TEX_WIDTH(poly2);
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nkeynes@189 | 137 | int height = POLY2_TEX_HEIGHT(poly2);
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nkeynes@189 | 138 | glEnable(GL_TEXTURE_2D);
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nkeynes@286 | 139 | texcache_get_texture( (texture&0x000FFFFF)<<3, width, height, texture );
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nkeynes@189 | 140 | glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, POLY2_TEX_BLEND(poly2) );
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nkeynes@308 | 141 | if( POLY2_TEX_CLAMP_U(poly2) ) {
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nkeynes@308 | 142 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
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nkeynes@308 | 143 | } else {
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nkeynes@308 | 144 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
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nkeynes@308 | 145 | }
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nkeynes@308 | 146 | if( POLY2_TEX_CLAMP_V(poly2) ) {
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nkeynes@308 | 147 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
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nkeynes@308 | 148 | } else {
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nkeynes@308 | 149 | glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
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nkeynes@308 | 150 | }
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nkeynes@189 | 151 | } else {
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nkeynes@189 | 152 | glDisable( GL_TEXTURE_2D );
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nkeynes@189 | 153 | }
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nkeynes@189 | 154 |
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nkeynes@189 | 155 | glShadeModel( POLY1_SHADE_MODEL(poly1) );
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nkeynes@189 | 156 |
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nkeynes@221 | 157 | int srcblend = POLY2_SRC_BLEND(poly2);
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nkeynes@221 | 158 | int destblend = POLY2_DEST_BLEND(poly2);
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nkeynes@221 | 159 | glBlendFunc( srcblend, destblend );
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nkeynes@318 | 160 |
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nkeynes@322 | 161 | if( POLY2_SRC_BLEND_TARGET(poly2) || POLY2_DEST_BLEND_TARGET(poly2) ) {
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nkeynes@322 | 162 | ERROR( "Accumulation buffer not supported" );
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nkeynes@322 | 163 | }
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nkeynes@322 | 164 |
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nkeynes@318 | 165 | pvr2_force_fragment_alpha = POLY2_ALPHA_ENABLE(poly2) ? FALSE : TRUE;
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nkeynes@318 | 166 |
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nkeynes@189 | 167 | }
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nkeynes@189 | 168 |
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nkeynes@319 | 169 | #define FARGB_A(x) (((float)(((x)>>24)+1))/256.0)
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nkeynes@319 | 170 | #define FARGB_R(x) (((float)((((x)>>16)&0xFF)+1))/256.0)
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nkeynes@319 | 171 | #define FARGB_G(x) (((float)((((x)>>8)&0xFF)+1))/256.0)
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nkeynes@319 | 172 | #define FARGB_B(x) (((float)(((x)&0xFF)+1))/256.0)
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nkeynes@319 | 173 |
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nkeynes@319 | 174 | void render_unpack_vertexes( struct vertex_unpacked *out, uint32_t poly1,
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nkeynes@319 | 175 | uint32_t *vertexes, int num_vertexes,
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nkeynes@319 | 176 | int vertex_size, int render_mode )
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nkeynes@319 | 177 | {
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nkeynes@319 | 178 | int m = 0, i;
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nkeynes@319 | 179 | if( render_mode == RENDER_FULLMOD ) {
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nkeynes@319 | 180 | m = (vertex_size - 3)/2;
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nkeynes@319 | 181 | }
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nkeynes@319 | 182 |
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nkeynes@319 | 183 | for( i=0; i<num_vertexes; i++ ) {
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nkeynes@319 | 184 | float *vertexf = (float *)vertexes;
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nkeynes@319 | 185 | int k = m + 3;
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nkeynes@319 | 186 | out[i].x = vertexf[0];
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nkeynes@319 | 187 | out[i].y = vertexf[1];
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nkeynes@319 | 188 | out[i].z = vertexf[2];
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nkeynes@319 | 189 | if( POLY1_TEXTURED(poly1) ) {
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nkeynes@319 | 190 | if( POLY1_UV16(poly1) ) {
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nkeynes@319 | 191 | out[i].u = halftofloat(vertexes[k]>>16);
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nkeynes@319 | 192 | out[i].v = halftofloat(vertexes[k]);
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nkeynes@319 | 193 | k++;
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nkeynes@319 | 194 | } else {
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nkeynes@319 | 195 | out[i].u = vertexf[k];
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nkeynes@319 | 196 | out[i].v = vertexf[k+1];
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nkeynes@319 | 197 | k+=2;
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nkeynes@319 | 198 | }
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nkeynes@319 | 199 | } else {
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nkeynes@319 | 200 | out[i].u = 0;
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nkeynes@319 | 201 | out[i].v = 0;
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nkeynes@319 | 202 | }
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nkeynes@319 | 203 | uint32_t argb = vertexes[k++];
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nkeynes@319 | 204 | out[i].rgba[0] = FARGB_R(argb);
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nkeynes@319 | 205 | out[i].rgba[1] = FARGB_G(argb);
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nkeynes@319 | 206 | out[i].rgba[2] = FARGB_B(argb);
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nkeynes@319 | 207 | out[i].rgba[3] = FARGB_A(argb);
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nkeynes@319 | 208 | if( POLY1_SPECULAR(poly1) ) {
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nkeynes@319 | 209 | uint32_t offset = vertexes[k++];
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nkeynes@319 | 210 | out[i].offset_rgba[0] = FARGB_R(argb);
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nkeynes@319 | 211 | out[i].offset_rgba[1] = FARGB_G(argb);
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nkeynes@319 | 212 | out[i].offset_rgba[2] = FARGB_B(argb);
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nkeynes@319 | 213 | out[i].offset_rgba[3] = FARGB_A(argb);
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nkeynes@319 | 214 | }
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nkeynes@319 | 215 | vertexes += vertex_size;
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nkeynes@319 | 216 | }
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nkeynes@319 | 217 | }
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nkeynes@319 | 218 |
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nkeynes@319 | 219 | /**
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nkeynes@319 | 220 | * Unpack the vertexes for a quad, calculating the values for the last
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nkeynes@319 | 221 | * vertex.
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nkeynes@319 | 222 | * FIXME: Integrate this with rendbkg somehow
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nkeynes@319 | 223 | */
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nkeynes@319 | 224 | void render_unpack_quad( struct vertex_unpacked *unpacked, uint32_t poly1,
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nkeynes@319 | 225 | uint32_t *vertexes, int vertex_size,
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nkeynes@319 | 226 | int render_mode )
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nkeynes@319 | 227 | {
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nkeynes@319 | 228 | int i;
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nkeynes@319 | 229 | struct vertex_unpacked diff0, diff1;
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nkeynes@319 | 230 |
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nkeynes@319 | 231 | render_unpack_vertexes( unpacked, poly1, vertexes, 3, vertex_size, render_mode );
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nkeynes@319 | 232 |
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nkeynes@319 | 233 | diff0.x = unpacked[0].x - unpacked[1].x;
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nkeynes@319 | 234 | diff0.y = unpacked[0].y - unpacked[1].y;
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nkeynes@319 | 235 | diff1.x = unpacked[2].x - unpacked[1].x;
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nkeynes@319 | 236 | diff1.y = unpacked[2].y - unpacked[1].y;
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nkeynes@319 | 237 |
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nkeynes@319 | 238 | float detxy = ((diff1.y) * (diff0.x)) - ((diff0.y) * (diff1.x));
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nkeynes@319 | 239 | float *vertexf = (float *)(vertexes+(vertex_size*3));
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nkeynes@319 | 240 | if( detxy == 0 ) {
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nkeynes@319 | 241 | memcpy( &unpacked[3], &unpacked[2], sizeof(struct vertex_unpacked) );
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nkeynes@319 | 242 | unpacked[3].x = vertexf[0];
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nkeynes@319 | 243 | unpacked[3].y = vertexf[1];
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nkeynes@319 | 244 | return;
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nkeynes@319 | 245 | }
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nkeynes@319 | 246 |
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nkeynes@319 | 247 | unpacked[3].x = vertexf[0];
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nkeynes@319 | 248 | unpacked[3].y = vertexf[1];
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nkeynes@319 | 249 | float t = ((unpacked[3].x - unpacked[1].x) * diff1.y -
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nkeynes@319 | 250 | (unpacked[3].y - unpacked[1].y) * diff1.x) / detxy;
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nkeynes@319 | 251 | float s = ((unpacked[3].y - unpacked[1].y) * diff0.x -
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nkeynes@319 | 252 | (unpacked[3].x - unpacked[1].x) * diff0.y) / detxy;
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nkeynes@319 | 253 | diff0.z = unpacked[0].z - unpacked[1].z;
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nkeynes@319 | 254 | diff1.z = unpacked[2].z - unpacked[1].z;
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nkeynes@319 | 255 | unpacked[3].z = unpacked[1].z + (t*diff0.z) + (s*diff1.z);
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nkeynes@319 | 256 |
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nkeynes@319 | 257 | diff0.u = unpacked[0].u - unpacked[1].u;
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nkeynes@319 | 258 | diff0.v = unpacked[0].v - unpacked[1].v;
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nkeynes@319 | 259 | diff1.u = unpacked[2].u - unpacked[1].u;
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nkeynes@319 | 260 | diff1.v = unpacked[2].v - unpacked[1].v;
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nkeynes@319 | 261 | unpacked[3].u = unpacked[1].u + (t*diff0.u) + (s*diff1.u);
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nkeynes@319 | 262 | unpacked[3].v = unpacked[1].v + (t*diff0.v) + (s*diff1.v);
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nkeynes@319 | 263 |
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nkeynes@319 | 264 | if( !POLY1_GOURAUD_SHADED(poly1) ) {
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nkeynes@319 | 265 | memcpy( unpacked[3].rgba, unpacked[2].rgba, sizeof(unpacked[2].rgba) );
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nkeynes@319 | 266 | memcpy( unpacked[3].offset_rgba, unpacked[2].offset_rgba, sizeof(unpacked[2].offset_rgba) );
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nkeynes@319 | 267 | } else {
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nkeynes@319 | 268 | for( i=0; i<4; i++ ) {
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nkeynes@319 | 269 | float d0 = unpacked[0].rgba[i] - unpacked[1].rgba[i];
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nkeynes@319 | 270 | float d1 = unpacked[2].rgba[i] - unpacked[1].rgba[i];
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nkeynes@319 | 271 | unpacked[3].rgba[i] = unpacked[1].rgba[i] + (t*d0) + (s*d1);
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nkeynes@319 | 272 | d0 = unpacked[0].offset_rgba[i] - unpacked[1].offset_rgba[i];
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nkeynes@319 | 273 | d1 = unpacked[2].offset_rgba[i] - unpacked[1].offset_rgba[i];
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nkeynes@319 | 274 | unpacked[3].offset_rgba[i] = unpacked[1].offset_rgba[i] + (t*d0) + (s*d1);
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nkeynes@319 | 275 | }
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nkeynes@319 | 276 | }
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nkeynes@319 | 277 | }
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nkeynes@319 | 278 |
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nkeynes@319 | 279 | void render_unpacked_vertex_array( uint32_t poly1, struct vertex_unpacked *vertexes[],
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nkeynes@319 | 280 | int num_vertexes ) {
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nkeynes@319 | 281 | int i;
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nkeynes@319 | 282 |
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nkeynes@319 | 283 | glBegin( GL_TRIANGLE_STRIP );
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nkeynes@319 | 284 |
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nkeynes@319 | 285 | for( i=0; i<num_vertexes; i++ ) {
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nkeynes@319 | 286 | if( POLY1_TEXTURED(poly1) ) {
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nkeynes@319 | 287 | glTexCoord2f( vertexes[i]->u, vertexes[i]->v );
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nkeynes@319 | 288 | }
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nkeynes@319 | 289 |
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nkeynes@322 | 290 | if( pvr2_force_fragment_alpha ) {
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nkeynes@322 | 291 | glColor4f( vertexes[i]->rgba[0], vertexes[i]->rgba[1], vertexes[i]->rgba[2], 1.0 );
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nkeynes@322 | 292 | } else {
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nkeynes@322 | 293 | glColor4f( vertexes[i]->rgba[0], vertexes[i]->rgba[1], vertexes[i]->rgba[2],
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nkeynes@322 | 294 | vertexes[i]->rgba[3] );
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nkeynes@322 | 295 | }
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nkeynes@319 | 296 | if( POLY1_SPECULAR(poly1) ) {
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nkeynes@319 | 297 | glSecondaryColor3fEXT( vertexes[i]->offset_rgba[0],
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nkeynes@319 | 298 | vertexes[i]->offset_rgba[1],
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nkeynes@319 | 299 | vertexes[i]->offset_rgba[2] );
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nkeynes@319 | 300 | }
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nkeynes@319 | 301 | glVertex3f( vertexes[i]->x, vertexes[i]->y, vertexes[i]->z );
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nkeynes@319 | 302 | }
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nkeynes@319 | 303 |
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nkeynes@319 | 304 | glEnd();
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nkeynes@319 | 305 | }
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nkeynes@319 | 306 |
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nkeynes@319 | 307 | void render_quad_vertexes( uint32_t poly1, uint32_t *vertexes, int vertex_size, int render_mode )
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nkeynes@319 | 308 | {
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nkeynes@319 | 309 | struct vertex_unpacked unpacked[4];
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nkeynes@319 | 310 | struct vertex_unpacked *pt[4] = {&unpacked[0], &unpacked[1], &unpacked[3], &unpacked[2]};
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nkeynes@319 | 311 | render_unpack_quad( unpacked, poly1, vertexes, vertex_size, render_mode );
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nkeynes@319 | 312 | render_unpacked_vertex_array( poly1, pt, 4 );
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nkeynes@319 | 313 | }
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nkeynes@319 | 314 |
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nkeynes@319 | 315 | void render_vertex_array( uint32_t poly1, uint32_t *vert_array[], int num_vertexes, int vertex_size,
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nkeynes@319 | 316 | int render_mode )
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nkeynes@189 | 317 | {
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nkeynes@189 | 318 | int i, m=0;
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nkeynes@189 | 319 |
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nkeynes@189 | 320 | if( render_mode == RENDER_FULLMOD ) {
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nkeynes@189 | 321 | m = (vertex_size - 3)/2;
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nkeynes@189 | 322 | }
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nkeynes@189 | 323 |
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nkeynes@189 | 324 | glBegin( GL_TRIANGLE_STRIP );
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nkeynes@189 | 325 |
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nkeynes@189 | 326 | for( i=0; i<num_vertexes; i++ ) {
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nkeynes@319 | 327 | uint32_t *vertexes = vert_array[i];
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nkeynes@319 | 328 | float *vertexf = (float *)vert_array[i];
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nkeynes@189 | 329 | uint32_t argb;
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nkeynes@318 | 330 | int k = m + 3;
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nkeynes@189 | 331 | if( POLY1_TEXTURED(poly1) ) {
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nkeynes@189 | 332 | if( POLY1_UV16(poly1) ) {
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nkeynes@318 | 333 | glTexCoord2f( halftofloat(vertexes[k]>>16),
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nkeynes@318 | 334 | halftofloat(vertexes[k]) );
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nkeynes@318 | 335 | k++;
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nkeynes@189 | 336 | } else {
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nkeynes@318 | 337 | glTexCoord2f( vertexf[k], vertexf[k+1] );
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nkeynes@318 | 338 | k+=2;
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nkeynes@189 | 339 | }
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nkeynes@189 | 340 | }
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nkeynes@189 | 341 |
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nkeynes@318 | 342 | argb = vertexes[k++];
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nkeynes@318 | 343 | if( pvr2_force_fragment_alpha ) {
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nkeynes@318 | 344 | glColor4ub( (GLubyte)(argb >> 16), (GLubyte)(argb >> 8),
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nkeynes@318 | 345 | (GLubyte)argb, 0xFF );
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nkeynes@318 | 346 | } else {
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nkeynes@318 | 347 | glColor4ub( (GLubyte)(argb >> 16), (GLubyte)(argb >> 8),
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nkeynes@318 | 348 | (GLubyte)argb, (GLubyte)(argb >> 24) );
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nkeynes@318 | 349 | }
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nkeynes@318 | 350 |
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nkeynes@318 | 351 | if( POLY1_SPECULAR(poly1) ) {
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nkeynes@318 | 352 | uint32_t spec = vertexes[k++];
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nkeynes@318 | 353 | glSecondaryColor3ubEXT( (GLubyte)(spec >> 16), (GLubyte)(spec >> 8),
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nkeynes@318 | 354 | (GLubyte)spec );
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nkeynes@318 | 355 | }
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nkeynes@189 | 356 | glVertex3f( vertexf[0], vertexf[1], vertexf[2] );
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nkeynes@189 | 357 | vertexes += vertex_size;
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nkeynes@189 | 358 | }
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nkeynes@189 | 359 |
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nkeynes@189 | 360 | glEnd();
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nkeynes@189 | 361 | }
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nkeynes@189 | 362 |
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nkeynes@319 | 363 | void render_vertexes( uint32_t poly1, uint32_t *vertexes, int num_vertexes, int vertex_size,
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nkeynes@319 | 364 | int render_mode )
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nkeynes@319 | 365 | {
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nkeynes@319 | 366 | uint32_t *vert_array[num_vertexes];
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nkeynes@319 | 367 | int i;
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nkeynes@319 | 368 | for( i=0; i<num_vertexes; i++ ) {
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nkeynes@319 | 369 | vert_array[i] = vertexes;
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nkeynes@319 | 370 | vertexes += vertex_size;
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nkeynes@319 | 371 | }
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nkeynes@319 | 372 | render_vertex_array( poly1, vert_array, num_vertexes, vertex_size, render_mode );
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nkeynes@319 | 373 | }
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nkeynes@319 | 374 |
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nkeynes@189 | 375 | /**
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nkeynes@189 | 376 | * Render a simple (not auto-sorted) tile
|
nkeynes@189 | 377 | */
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nkeynes@189 | 378 | void render_tile( pvraddr_t tile_entry, int render_mode, gboolean cheap_modifier_mode ) {
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nkeynes@215 | 379 | uint32_t poly_bank = MMIO_READ(PVR2,RENDER_POLYBASE);
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nkeynes@189 | 380 | uint32_t *tile_list = (uint32_t *)(video_base+tile_entry);
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nkeynes@189 | 381 | do {
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nkeynes@189 | 382 | uint32_t entry = *tile_list++;
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nkeynes@189 | 383 | if( entry >> 28 == 0x0F ) {
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nkeynes@189 | 384 | break;
|
nkeynes@189 | 385 | } else if( entry >> 28 == 0x0E ) {
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nkeynes@189 | 386 | tile_list = (uint32_t *)(video_base + (entry&0x007FFFFF));
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nkeynes@189 | 387 | } else {
|
nkeynes@215 | 388 | uint32_t *polygon = (uint32_t *)(video_base + poly_bank + ((entry & 0x000FFFFF) << 2));
|
nkeynes@189 | 389 | int is_modified = entry & 0x01000000;
|
nkeynes@189 | 390 | int vertex_length = (entry >> 21) & 0x07;
|
nkeynes@189 | 391 | int context_length = 3;
|
nkeynes@189 | 392 | if( is_modified && !cheap_modifier_mode ) {
|
nkeynes@189 | 393 | context_length = 5;
|
nkeynes@189 | 394 | vertex_length *= 2 ;
|
nkeynes@189 | 395 | }
|
nkeynes@189 | 396 | vertex_length += 3;
|
nkeynes@308 | 397 |
|
nkeynes@189 | 398 | if( (entry & 0xE0000000) == 0x80000000 ) {
|
nkeynes@189 | 399 | /* Triangle(s) */
|
nkeynes@189 | 400 | int strip_count = ((entry >> 25) & 0x0F)+1;
|
nkeynes@189 | 401 | int polygon_length = 3 * vertex_length + context_length;
|
nkeynes@189 | 402 | int i;
|
nkeynes@189 | 403 | for( i=0; i<strip_count; i++ ) {
|
nkeynes@189 | 404 | render_set_context( polygon, render_mode );
|
nkeynes@189 | 405 | render_vertexes( *polygon, polygon+context_length, 3, vertex_length,
|
nkeynes@189 | 406 | render_mode );
|
nkeynes@189 | 407 | polygon += polygon_length;
|
nkeynes@189 | 408 | }
|
nkeynes@189 | 409 | } else if( (entry & 0xE0000000) == 0xA0000000 ) {
|
nkeynes@189 | 410 | /* Sprite(s) */
|
nkeynes@319 | 411 | int strip_count = ((entry >> 25) & 0x0F)+1;
|
nkeynes@189 | 412 | int polygon_length = 4 * vertex_length + context_length;
|
nkeynes@189 | 413 | int i;
|
nkeynes@189 | 414 | for( i=0; i<strip_count; i++ ) {
|
nkeynes@189 | 415 | render_set_context( polygon, render_mode );
|
nkeynes@319 | 416 | render_quad_vertexes( *polygon, polygon+context_length, vertex_length,
|
nkeynes@319 | 417 | render_mode );
|
nkeynes@189 | 418 | polygon += polygon_length;
|
nkeynes@189 | 419 | }
|
nkeynes@189 | 420 | } else {
|
nkeynes@189 | 421 | /* Polygon */
|
nkeynes@189 | 422 | int i, first=-1, last = -1;
|
nkeynes@189 | 423 | for( i=0; i<6; i++ ) {
|
nkeynes@189 | 424 | if( entry & (0x40000000>>i) ) {
|
nkeynes@189 | 425 | if( first == -1 ) first = i;
|
nkeynes@189 | 426 | last = i;
|
nkeynes@189 | 427 | }
|
nkeynes@189 | 428 | }
|
nkeynes@189 | 429 | if( first != -1 ) {
|
nkeynes@189 | 430 | first = 0;
|
nkeynes@189 | 431 | render_set_context(polygon, render_mode);
|
nkeynes@189 | 432 | render_vertexes( *polygon, polygon+context_length + (first*vertex_length),
|
nkeynes@189 | 433 | (last-first+3), vertex_length, render_mode );
|
nkeynes@189 | 434 | }
|
nkeynes@189 | 435 | }
|
nkeynes@189 | 436 | }
|
nkeynes@189 | 437 | } while( 1 );
|
nkeynes@189 | 438 | }
|
nkeynes@189 | 439 |
|
nkeynes@189 | 440 | void pvr2_render_tilebuffer( int width, int height, int clipx1, int clipy1,
|
nkeynes@189 | 441 | int clipx2, int clipy2 ) {
|
nkeynes@189 | 442 |
|
nkeynes@191 | 443 | pvraddr_t segmentbase = MMIO_READ( PVR2, RENDER_TILEBASE );
|
nkeynes@189 | 444 | int tile_sort;
|
nkeynes@189 | 445 | gboolean cheap_shadow;
|
nkeynes@189 | 446 |
|
nkeynes@191 | 447 | int obj_config = MMIO_READ( PVR2, RENDER_OBJCFG );
|
nkeynes@191 | 448 | int isp_config = MMIO_READ( PVR2, RENDER_ISPCFG );
|
nkeynes@191 | 449 | int shadow_cfg = MMIO_READ( PVR2, RENDER_SHADOW );
|
nkeynes@189 | 450 |
|
nkeynes@222 | 451 | if( (obj_config & 0x00200000) == 0 ) {
|
nkeynes@189 | 452 | if( isp_config & 1 ) {
|
nkeynes@189 | 453 | tile_sort = 0;
|
nkeynes@189 | 454 | } else {
|
nkeynes@189 | 455 | tile_sort = 2;
|
nkeynes@189 | 456 | }
|
nkeynes@189 | 457 | } else {
|
nkeynes@189 | 458 | tile_sort = 1;
|
nkeynes@189 | 459 | }
|
nkeynes@189 | 460 |
|
nkeynes@189 | 461 | cheap_shadow = shadow_cfg & 0x100 ? TRUE : FALSE;
|
nkeynes@189 | 462 |
|
nkeynes@189 | 463 | struct tile_segment *segment = (struct tile_segment *)(video_base + segmentbase);
|
nkeynes@189 | 464 |
|
nkeynes@215 | 465 | struct timeval tv_start, tv_end;
|
nkeynes@215 | 466 | gettimeofday(&tv_start, NULL);
|
nkeynes@189 | 467 | glEnable( GL_SCISSOR_TEST );
|
nkeynes@268 | 468 | do {
|
nkeynes@221 | 469 | // fwrite_dump32v( (uint32_t *)segment, sizeof(struct tile_segment), 6, stderr );
|
nkeynes@189 | 470 | int tilex = SEGMENT_X(segment->control);
|
nkeynes@189 | 471 | int tiley = SEGMENT_Y(segment->control);
|
nkeynes@189 | 472 |
|
nkeynes@189 | 473 | int x1 = tilex << 5;
|
nkeynes@189 | 474 | int y1 = tiley << 5;
|
nkeynes@189 | 475 | if( x1 + 32 <= clipx1 ||
|
nkeynes@189 | 476 | y1 + 32 <= clipy1 ||
|
nkeynes@189 | 477 | x1 >= clipx2 ||
|
nkeynes@189 | 478 | y1 >= clipy2 ) {
|
nkeynes@189 | 479 | /* Tile completely clipped, skip */
|
nkeynes@189 | 480 | continue;
|
nkeynes@189 | 481 | }
|
nkeynes@215 | 482 |
|
nkeynes@189 | 483 | /* Set a scissor on the visible part of the tile */
|
nkeynes@189 | 484 | int w = MIN(x1+32, clipx2) - x1;
|
nkeynes@189 | 485 | int h = MIN(y1+32, clipy2) - y1;
|
nkeynes@189 | 486 | x1 = MAX(x1,clipx1);
|
nkeynes@189 | 487 | y1 = MAX(y1,clipy1);
|
nkeynes@189 | 488 | glScissor( x1, height-y1-h, w, h );
|
nkeynes@189 | 489 |
|
nkeynes@189 | 490 | if( (segment->opaque_ptr & NO_POINTER) == 0 ) {
|
nkeynes@189 | 491 | if( (segment->opaquemod_ptr & NO_POINTER) == 0 ) {
|
nkeynes@189 | 492 | /* TODO */
|
nkeynes@189 | 493 | }
|
nkeynes@189 | 494 | render_tile( segment->opaque_ptr, RENDER_NORMAL, cheap_shadow );
|
nkeynes@189 | 495 | }
|
nkeynes@189 | 496 |
|
nkeynes@189 | 497 | if( (segment->trans_ptr & NO_POINTER) == 0 ) {
|
nkeynes@189 | 498 | if( (segment->transmod_ptr & NO_POINTER) == 0 ) {
|
nkeynes@189 | 499 | /* TODO */
|
nkeynes@189 | 500 | }
|
nkeynes@222 | 501 | if( tile_sort == 2 ||
|
nkeynes@222 | 502 | (tile_sort == 1 && ((segment->control & SEGMENT_SORT_TRANS)==0)) ) {
|
nkeynes@189 | 503 | render_autosort_tile( segment->trans_ptr, RENDER_NORMAL, cheap_shadow );
|
nkeynes@189 | 504 | } else {
|
nkeynes@189 | 505 | render_tile( segment->trans_ptr, RENDER_NORMAL, cheap_shadow );
|
nkeynes@189 | 506 | }
|
nkeynes@189 | 507 | }
|
nkeynes@189 | 508 |
|
nkeynes@189 | 509 | if( (segment->punchout_ptr & NO_POINTER) == 0 ) {
|
nkeynes@189 | 510 | render_tile( segment->punchout_ptr, RENDER_NORMAL, cheap_shadow );
|
nkeynes@189 | 511 | }
|
nkeynes@268 | 512 | } while( ((segment++)->control & SEGMENT_END) == 0 );
|
nkeynes@189 | 513 | glDisable( GL_SCISSOR_TEST );
|
nkeynes@215 | 514 |
|
nkeynes@215 | 515 | gettimeofday(&tv_end, NULL);
|
nkeynes@215 | 516 | timersub(&tv_end,&tv_start, &tv_start);
|
nkeynes@189 | 517 | }
|
nkeynes@322 | 518 |
|
nkeynes@322 | 519 | static float render_find_maximum_tile_z( pvraddr_t tile_entry, float inputz )
|
nkeynes@322 | 520 | {
|
nkeynes@322 | 521 | uint32_t poly_bank = MMIO_READ(PVR2,RENDER_POLYBASE);
|
nkeynes@322 | 522 | uint32_t *tile_list = (uint32_t *)(video_base+tile_entry);
|
nkeynes@322 | 523 | int shadow_cfg = MMIO_READ( PVR2, RENDER_SHADOW ) & 0x100;
|
nkeynes@322 | 524 | int i, j;
|
nkeynes@322 | 525 | float z = inputz;
|
nkeynes@322 | 526 | do {
|
nkeynes@322 | 527 | uint32_t entry = *tile_list++;
|
nkeynes@322 | 528 | if( entry >> 28 == 0x0F ) {
|
nkeynes@322 | 529 | break;
|
nkeynes@322 | 530 | } else if( entry >> 28 == 0x0E ) {
|
nkeynes@322 | 531 | tile_list = (uint32_t *)(video_base + (entry&0x007FFFFF));
|
nkeynes@322 | 532 | } else {
|
nkeynes@322 | 533 | uint32_t *polygon = (uint32_t *)(video_base + poly_bank + ((entry & 0x000FFFFF) << 2));
|
nkeynes@322 | 534 | int is_modified = entry & 0x01000000;
|
nkeynes@322 | 535 | int vertex_length = (entry >> 21) & 0x07;
|
nkeynes@322 | 536 | int context_length = 3;
|
nkeynes@322 | 537 | if( (entry & 0x01000000) && shadow_cfg ) {
|
nkeynes@322 | 538 | context_length = 5;
|
nkeynes@322 | 539 | vertex_length *= 2 ;
|
nkeynes@322 | 540 | }
|
nkeynes@322 | 541 | vertex_length += 3;
|
nkeynes@322 | 542 | if( (entry & 0xE0000000) == 0x80000000 ) {
|
nkeynes@322 | 543 | /* Triangle(s) */
|
nkeynes@322 | 544 | int strip_count = ((entry >> 25) & 0x0F)+1;
|
nkeynes@322 | 545 | float *vertexz = (float *)(polygon+context_length+2);
|
nkeynes@322 | 546 | for( i=0; i<strip_count; i++ ) {
|
nkeynes@322 | 547 | for( j=0; j<3; j++ ) {
|
nkeynes@322 | 548 | if( *vertexz > z ) {
|
nkeynes@322 | 549 | z = *vertexz;
|
nkeynes@322 | 550 | }
|
nkeynes@322 | 551 | vertexz += vertex_length;
|
nkeynes@322 | 552 | }
|
nkeynes@322 | 553 | vertexz += context_length;
|
nkeynes@322 | 554 | }
|
nkeynes@322 | 555 | } else if( (entry & 0xE0000000) == 0xA0000000 ) {
|
nkeynes@322 | 556 | /* Sprite(s) */
|
nkeynes@322 | 557 | int strip_count = ((entry >> 25) & 0x0F)+1;
|
nkeynes@322 | 558 | int polygon_length = 4 * vertex_length + context_length;
|
nkeynes@322 | 559 | int i;
|
nkeynes@322 | 560 | float *vertexz = (float *)(polygon+context_length+2);
|
nkeynes@322 | 561 | for( i=0; i<strip_count; i++ ) {
|
nkeynes@322 | 562 | for( j=0; j<4; j++ ) {
|
nkeynes@322 | 563 | if( *vertexz > z ) {
|
nkeynes@322 | 564 | z = *vertexz;
|
nkeynes@322 | 565 | }
|
nkeynes@322 | 566 | vertexz += vertex_length;
|
nkeynes@322 | 567 | }
|
nkeynes@322 | 568 | vertexz+=context_length;
|
nkeynes@322 | 569 | }
|
nkeynes@322 | 570 | } else {
|
nkeynes@322 | 571 | /* Polygon */
|
nkeynes@322 | 572 | int i, first=-1, last = -1;
|
nkeynes@322 | 573 | float *vertexz = (float *)polygon+context_length+2;
|
nkeynes@322 | 574 | for( i=0; i<6; i++ ) {
|
nkeynes@322 | 575 | if( (entry & (0x40000000>>i)) && *vertexz > z ) {
|
nkeynes@322 | 576 | z = *vertexz;
|
nkeynes@322 | 577 | }
|
nkeynes@322 | 578 | vertexz += vertex_length;
|
nkeynes@322 | 579 | }
|
nkeynes@322 | 580 | }
|
nkeynes@322 | 581 | }
|
nkeynes@322 | 582 | } while(1);
|
nkeynes@322 | 583 | return z;
|
nkeynes@322 | 584 | }
|
nkeynes@322 | 585 |
|
nkeynes@322 | 586 | /**
|
nkeynes@322 | 587 | * Scan through the scene to determine the largest z value (in order to set up
|
nkeynes@322 | 588 | * an appropriate near clip plane).
|
nkeynes@322 | 589 | */
|
nkeynes@322 | 590 | float pvr2_render_find_maximum_z( )
|
nkeynes@322 | 591 | {
|
nkeynes@322 | 592 | pvraddr_t segmentbase = MMIO_READ( PVR2, RENDER_TILEBASE );
|
nkeynes@322 | 593 | float maximumz = MMIO_READF( PVR2, RENDER_FARCLIP ); /* Initialize to the far clip plane */
|
nkeynes@322 | 594 |
|
nkeynes@322 | 595 | struct tile_segment *segment = (struct tile_segment *)(video_base + segmentbase);
|
nkeynes@322 | 596 | do {
|
nkeynes@322 | 597 |
|
nkeynes@322 | 598 | if( (segment->opaque_ptr & NO_POINTER) == 0 ) {
|
nkeynes@322 | 599 | maximumz = render_find_maximum_tile_z(segment->opaque_ptr, maximumz);
|
nkeynes@322 | 600 | }
|
nkeynes@322 | 601 | if( (segment->opaquemod_ptr & NO_POINTER) == 0 ) {
|
nkeynes@322 | 602 | maximumz = render_find_maximum_tile_z(segment->opaquemod_ptr, maximumz);
|
nkeynes@322 | 603 | }
|
nkeynes@322 | 604 | if( (segment->trans_ptr & NO_POINTER) == 0 ) {
|
nkeynes@322 | 605 | maximumz = render_find_maximum_tile_z(segment->trans_ptr, maximumz);
|
nkeynes@322 | 606 | }
|
nkeynes@322 | 607 | if( (segment->transmod_ptr & NO_POINTER) == 0 ) {
|
nkeynes@322 | 608 | maximumz = render_find_maximum_tile_z(segment->transmod_ptr, maximumz);
|
nkeynes@322 | 609 | }
|
nkeynes@322 | 610 | if( (segment->punchout_ptr & NO_POINTER) == 0 ) {
|
nkeynes@322 | 611 | maximumz = render_find_maximum_tile_z(segment->punchout_ptr, maximumz);
|
nkeynes@322 | 612 | }
|
nkeynes@322 | 613 |
|
nkeynes@322 | 614 | } while( ((segment++)->control & SEGMENT_END) == 0 );
|
nkeynes@322 | 615 |
|
nkeynes@322 | 616 | return maximumz;
|
nkeynes@322 | 617 | }
|