112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
/***************************************************************************
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* *
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* Project64-video - A Nintendo 64 gfx plugin. *
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* http://www.pj64-emu.com/ *
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* Copyright (C) 2017 Project64. All rights reserved. *
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* Copyright (C) 2003-2009 Sergey 'Gonetz' Lipski *
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* Copyright (C) 2002 Dave2001 *
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* *
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* License: *
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* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
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* version 2 of the License, or (at your option) any later version. *
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* *
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****************************************************************************/
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#pragma once
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#define NOT_TMU0 0x00
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#define NOT_TMU1 0x01
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#define NOT_TMU2 0x02
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void util_init();
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int cull_tri(gfxVERTEX **v);
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void draw_tri(gfxVERTEX **v, uint16_t linew = 0);
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void do_triangle_stuff(uint16_t linew = 0, int old_interpolate = TRUE);
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void do_triangle_stuff_2(uint16_t linew = 0);
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void apply_shade_mods(gfxVERTEX *v);
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void update();
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void update_scissor();
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void set_message_combiner(void);
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float ScaleZ(float z);
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// positional and texel coordinate clipping
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#define CCLIP(ux,lx,ut,lt,uc,lc) \
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if (ux > lx || lx < uc || ux > lc) { rdp.tri_n += 2; return; } \
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if (ux < uc) { \
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float p = (uc-ux)/(lx-ux); \
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ut = p*(lt-ut)+ut; \
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ux = uc; \
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} \
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if (lx > lc) { \
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float p = (lc-ux)/(lx-ux); \
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lt = p*(lt-ut)+ut; \
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lx = lc; \
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}
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#define CCLIP2(ux,lx,ut,lt,un,ln,uc,lc) \
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if (ux > lx || lx < uc || ux > lc) { rdp.tri_n += 2; return; } \
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if (ux < uc) { \
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float p = (uc-ux)/(lx-ux); \
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ut = p*(lt-ut)+ut; \
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un = p*(ln-un)+un; \
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ux = uc; \
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} \
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if (lx > lc) { \
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float p = (lc-ux)/(lx-ux); \
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lt = p*(lt-ut)+ut; \
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ln = p*(ln-un)+un; \
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lx = lc; \
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}
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#if defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))
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#include <stdlib.h>
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#define bswap32(x) _byteswap_ulong(x)
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#else
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static inline uint32_t bswap32(uint32_t val)
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{
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return (((val & 0xff000000) >> 24) |
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((val & 0x00ff0000) >> 8) |
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((val & 0x0000ff00) << 8) |
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((val & 0x000000ff) << 24));
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}
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#endif
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#define ALOWORD(x) (*((uint16_t*)&(x))) // low word
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static inline uint16_t __ROR__(uint16_t value, unsigned int count)
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{
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const unsigned int nbits = sizeof(uint16_t) * 8;
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count %= nbits;
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uint16_t low = (value << (nbits - count)) & 0xFFFF;
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value >>= count;
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value |= low;
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return value;
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}
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template<class T> static inline T __ROR__(T value, unsigned int count)
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{
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const unsigned int nbits = sizeof(T) * 8;
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count %= nbits;
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T low = value << (nbits - count);
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value >>= count;
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value |= low;
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return value;
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}
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// rotate left
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template<class T> static T __ROL__(T value, unsigned int count)
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{
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const unsigned int nbits = sizeof(T) * 8;
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count %= nbits;
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T high = value >> (nbits - count);
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value <<= count;
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value |= high;
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return value;
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}
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