107 lines
3.7 KiB
C++
107 lines
3.7 KiB
C++
#include "../float_uint32.hpp"
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#include "core_bits.hpp"
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#include "../holly.hpp"
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#include "../memorymap.hpp"
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#include "../systembus.hpp"
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#include "../systembus_bits.hpp"
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#include "texture_memory_alloc.hpp"
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#include "core.hpp"
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#include "background.hpp"
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#include "region_array.hpp"
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void core_init()
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{
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holly.ISP_FEED_CFG = isp_feed_cfg::cache_size_for_translucency(0x200)
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| isp_feed_cfg::punch_through_chunk_size(0x040);
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holly.FPU_SHAD_SCALE = fpu_shad_scale::simple_shadow_enable::intensity_volume_mode
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| fpu_shad_scale::scale_factor_for_shadows(127);
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holly.FPU_CULL_VAL = _i(1.f);
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holly.FPU_PERP_VAL = _i(0.f);
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holly.SPAN_SORT_CFG = span_sort_cfg::span_sort_enable
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| span_sort_cfg::offset_sort_enable;
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holly.FOG_COL_RAM = fog_col_ram::red(127)
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| fog_col_ram::green(127)
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| fog_col_ram::blue(127);
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holly.FOG_COL_VERT = fog_col_vert::red(127)
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| fog_col_vert::green(127)
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| fog_col_vert::blue(127);
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holly.FOG_CLAMP_MIN = fog_clamp_min::alpha(0)
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| fog_clamp_min::red(0)
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| fog_clamp_min::green(0)
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| fog_clamp_min::blue(0);
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holly.FOG_CLAMP_MAX = fog_clamp_max::alpha(255)
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| fog_clamp_max::red(255)
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| fog_clamp_max::green(255)
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| fog_clamp_max::blue(255);
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holly.HALF_OFFSET = half_offset::tsp_texel_sampling_position::center
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| half_offset::tsp_pixel_sampling_position::center
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| half_offset::fpu_pixel_sampling_position::center;
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holly.FPU_PARAM_CFG = fpu_param_cfg::region_header_type::type_2
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| fpu_param_cfg::tsp_parameter_burst_threshold(31)
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| fpu_param_cfg::isp_parameter_burst_threshold(31)
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| fpu_param_cfg::pointer_burst_size(15) // must be less than opb size
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| fpu_param_cfg::pointer_first_burst_size(7); // half of pointer burst size(?)
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}
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void core_start_render(uint32_t frame_address,
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uint32_t frame_linestride, // in pixels
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uint32_t frame_size, // in bytes
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uint32_t frame_ix, uint32_t num_frames)
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{
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holly.REGION_BASE = (offsetof (struct texture_memory_alloc, region_array));
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holly.PARAM_BASE = (offsetof (struct texture_memory_alloc, isp_tsp_parameters));
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holly.ISP_BACKGND_T = isp_backgnd_t::tag_address((offsetof (struct texture_memory_alloc, background)) / 4)
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| isp_backgnd_t::tag_offset(0)
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| isp_backgnd_t::skip(1);
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holly.ISP_BACKGND_D = _i(1.f/100000.f);
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holly.FB_W_CTRL = fb_w_ctrl::fb_dither | fb_w_ctrl::fb_packmode::_565_rgb_16bit;
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holly.FB_W_LINESTRIDE = (frame_linestride * 2) / 8;
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uint32_t w_fb = ((frame_ix + 0) & num_frames) * frame_size;
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holly.FB_W_SOF1 = frame_address + w_fb;
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holly.STARTRENDER = 1;
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}
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void core_start_render(uint32_t frame_ix, uint32_t num_frames)
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{
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core_start_render((offsetof (struct texture_memory_alloc, framebuffer)),
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640, // frame_linestride
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0x00096000, // frame_size
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frame_ix, num_frames);
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}
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static bool flycast_bug = 0;
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void core_wait_end_of_render_video()
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{
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/*
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"Furthermore, it is strongly recommended that the End of ISP and End of Video interrupts
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be cleared at the same time in order to make debugging easier when an error occurs."
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*/
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while ((system.ISTNRM & ISTNRM__END_OF_RENDER_TSP) == 0);
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system.ISTNRM = ISTNRM__END_OF_RENDER_TSP
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| ISTNRM__END_OF_RENDER_ISP
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| ISTNRM__END_OF_RENDER_VIDEO;
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}
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void core_wait_end_of_render_video(uint32_t frame_ix, uint32_t num_frames)
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{
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core_wait_end_of_render_video();
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// hmm hacky...
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uint32_t r_fb = ((frame_ix + 1) & num_frames) * 0x00096000;
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holly.FB_R_SOF1 = (offsetof (struct texture_memory_alloc, framebuffer)) + r_fb;
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}
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