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// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
/******************************************************************************
SGI/Nintendo Reality Display Texture Fetch Unit (TF)
-------------------
by Ryan Holtz
based on initial C code by Ville Linde
contains additional improvements from angrylion, Ziggy, Gonetz and Orkin
******************************************************************************/
#ifndef _VIDEO_RDPTEXPIPE_H_
#define _VIDEO_RDPTEXPIPE_H_
#include "video/n64types.h"
class n64_texture_pipe_t
{
public:
typedef void (n64_texture_pipe_t::*texel_fetcher_t) (rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
typedef void (n64_texture_pipe_t::*texel_cycler_t) (color_t* TEX, color_t* prev, int32_t SSS, int32_t SST, uint32_t tilenum, uint32_t cycle, rdp_span_aux* userdata, const rdp_poly_state& object);
n64_texture_pipe_t()
{
m_maskbits_table[0] = 0xffff;
for(int i = 1; i < 16; i++)
{
m_maskbits_table[i] = ((uint16_t)(0xffff) >> (16 - i)) & 0x3ff;
}
m_start_span = false;
for (auto & elem : m_texel_fetch)
{
elem = &n64_texture_pipe_t::fetch_nop;
}
m_texel_fetch[ 8] = &n64_texture_pipe_t::fetch_rgba16_raw;
m_texel_fetch[ 9] = &n64_texture_pipe_t::fetch_rgba16_raw;
m_texel_fetch[10] = &n64_texture_pipe_t::fetch_rgba16_tlut0;
m_texel_fetch[11] = &n64_texture_pipe_t::fetch_rgba16_tlut1;
m_texel_fetch[12] = &n64_texture_pipe_t::fetch_rgba32_raw;
m_texel_fetch[13] = &n64_texture_pipe_t::fetch_rgba32_raw;
m_texel_fetch[14] = &n64_texture_pipe_t::fetch_rgba32_tlut0;
m_texel_fetch[15] = &n64_texture_pipe_t::fetch_rgba32_tlut1;
m_texel_fetch[24] = &n64_texture_pipe_t::fetch_yuv;
m_texel_fetch[25] = &n64_texture_pipe_t::fetch_yuv;
m_texel_fetch[26] = &n64_texture_pipe_t::fetch_yuv;
m_texel_fetch[27] = &n64_texture_pipe_t::fetch_yuv;
m_texel_fetch[32] = &n64_texture_pipe_t::fetch_ci4_raw;
m_texel_fetch[33] = &n64_texture_pipe_t::fetch_ci4_raw;
m_texel_fetch[34] = &n64_texture_pipe_t::fetch_ci4_tlut0;
m_texel_fetch[35] = &n64_texture_pipe_t::fetch_ci4_tlut1;
m_texel_fetch[36] = &n64_texture_pipe_t::fetch_ci8_raw;
m_texel_fetch[37] = &n64_texture_pipe_t::fetch_ci8_raw;
m_texel_fetch[38] = &n64_texture_pipe_t::fetch_ci8_tlut0;
m_texel_fetch[39] = &n64_texture_pipe_t::fetch_ci8_tlut1;
m_texel_fetch[48] = &n64_texture_pipe_t::fetch_ia4_raw;
m_texel_fetch[49] = &n64_texture_pipe_t::fetch_ia4_raw;
m_texel_fetch[50] = &n64_texture_pipe_t::fetch_ia4_tlut0;
m_texel_fetch[51] = &n64_texture_pipe_t::fetch_ia4_tlut1;
m_texel_fetch[52] = &n64_texture_pipe_t::fetch_ia8_raw;
m_texel_fetch[53] = &n64_texture_pipe_t::fetch_ia8_raw;
m_texel_fetch[54] = &n64_texture_pipe_t::fetch_ia8_tlut0;
m_texel_fetch[55] = &n64_texture_pipe_t::fetch_ia8_tlut1;
m_texel_fetch[56] = &n64_texture_pipe_t::fetch_ia16_raw;
m_texel_fetch[57] = &n64_texture_pipe_t::fetch_ia16_raw;
m_texel_fetch[58] = &n64_texture_pipe_t::fetch_ia16_tlut0;
m_texel_fetch[59] = &n64_texture_pipe_t::fetch_ia16_tlut1;
m_texel_fetch[64] = &n64_texture_pipe_t::fetch_i4_raw;
m_texel_fetch[65] = &n64_texture_pipe_t::fetch_i4_raw;
m_texel_fetch[66] = &n64_texture_pipe_t::fetch_i4_tlut0;
m_texel_fetch[67] = &n64_texture_pipe_t::fetch_i4_tlut1;
m_texel_fetch[68] = &n64_texture_pipe_t::fetch_i8_raw;
m_texel_fetch[69] = &n64_texture_pipe_t::fetch_i8_raw;
m_texel_fetch[70] = &n64_texture_pipe_t::fetch_i8_tlut0;
m_texel_fetch[71] = &n64_texture_pipe_t::fetch_i8_tlut1;
m_cycle[0] = &n64_texture_pipe_t::cycle_nearest;
m_cycle[1] = &n64_texture_pipe_t::cycle_nearest_lerp;
m_cycle[2] = &n64_texture_pipe_t::cycle_linear;
m_cycle[3] = &n64_texture_pipe_t::cycle_linear_lerp;
}
void cycle_nearest(color_t* TEX, color_t* prev, int32_t SSS, int32_t SST, uint32_t tilenum, uint32_t cycle, rdp_span_aux* userdata, const rdp_poly_state& object);
void cycle_nearest_lerp(color_t* TEX, color_t* prev, int32_t SSS, int32_t SST, uint32_t tilenum, uint32_t cycle, rdp_span_aux* userdata, const rdp_poly_state& object);
void cycle_linear(color_t* TEX, color_t* prev, int32_t SSS, int32_t SST, uint32_t tilenum, uint32_t cycle, rdp_span_aux* userdata, const rdp_poly_state& object);
void cycle_linear_lerp(color_t* TEX, color_t* prev, int32_t SSS, int32_t SST, uint32_t tilenum, uint32_t cycle, rdp_span_aux* userdata, const rdp_poly_state& object);
texel_cycler_t m_cycle[4];
void copy(color_t* TEX, int32_t SSS, int32_t SST, uint32_t tilenum, const rdp_poly_state& object, rdp_span_aux* userdata);
void calculate_clamp_diffs(uint32_t prim_tile, rdp_span_aux* userdata, const rdp_poly_state& object);
void lod_1cycle(int32_t* sss, int32_t* sst, const int32_t s, const int32_t t, const int32_t w, const int32_t dsinc, const int32_t dtinc, const int32_t dwinc, rdp_span_aux* userdata, const rdp_poly_state& object);
void lod_2cycle(int32_t* sss, int32_t* sst, const int32_t s, const int32_t t, const int32_t w, const int32_t dsinc, const int32_t dtinc, const int32_t dwinc, const int32_t prim_tile, int32_t* t1, int32_t* t2, rdp_span_aux* userdata, const rdp_poly_state& object);
void lod_2cycle_limited(int32_t* sss, int32_t* sst, const int32_t s, const int32_t t, int32_t w, const int32_t dsinc, const int32_t dtinc, const int32_t dwinc, const int32_t prim_tile, int32_t* t1, const rdp_poly_state& object);
void set_machine(running_machine& machine);
bool m_start_span;
private:
void mask(rgbaint_t& sstt, const n64_tile_t& tile);
rgbaint_t shift_cycle(rgbaint_t& st, const n64_tile_t& tile);
void shift_copy(rgbaint_t& st, const n64_tile_t& tile);
void clamp_cycle(rgbaint_t& st, rgbaint_t& stfrac, rgbaint_t& maxst, const int32_t tilenum, const n64_tile_t& tile, rdp_span_aux* userdata);
void clamp_cycle_light(rgbaint_t& st, rgbaint_t& maxst, const int32_t tilenum, const n64_tile_t& tile, rdp_span_aux* userdata);
void fetch_nop(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_rgba16_tlut0(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_rgba16_tlut1(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_rgba16_raw(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_rgba32_tlut0(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_rgba32_tlut1(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_rgba32_raw(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_yuv(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ci4_tlut0(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ci4_tlut1(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ci4_raw(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ci8_tlut0(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ci8_tlut1(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ci8_raw(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ia4_tlut0(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ia4_tlut1(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ia4_raw(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ia8_tlut0(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ia8_tlut1(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ia8_raw(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ia16_tlut0(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ia16_tlut1(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_ia16_raw(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_i4_tlut0(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_i4_tlut1(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_i4_raw(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_i8_tlut0(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_i8_tlut1(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
void fetch_i8_raw(rgbaint_t& out, int32_t s, int32_t t, int32_t tbase, int32_t tpal, rdp_span_aux* userdata);
texel_fetcher_t m_texel_fetch[16*5];
n64_rdp* m_rdp;
int32_t m_maskbits_table[16];
color_t m_expand_16to32_table[0x10000];
uint16_t m_lod_lookup[0x80000];
rgbaint_t m_st2_add;
rgbaint_t m_v1;
};
#endif // _VIDEO_RDPTEXPIPE_H_
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