490 lines
15 KiB
C++
490 lines
15 KiB
C++
#include <bit>
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#include "holly/background.hpp"
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#include "holly/core.hpp"
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#include "holly/core_bits.hpp"
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#include "holly/holly.hpp"
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#include "holly/isp_tsp.hpp"
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#include "holly/region_array.hpp"
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#include "holly/ta_bits.hpp"
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#include "holly/ta_fifo_polygon_converter.hpp"
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#include "holly/ta_global_parameter.hpp"
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#include "holly/ta_parameter.hpp"
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#include "holly/ta_vertex_parameter.hpp"
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#include "holly/texture_memory_alloc5.hpp"
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#include "holly/video_output.hpp"
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#include "systembus.hpp"
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#include "systembus_bits.hpp"
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#include "maple/maple.hpp"
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#include "maple/maple_host_command_writer.hpp"
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#include "maple/maple_bus_bits.hpp"
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#include "maple/maple_bus_commands.hpp"
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#include "maple/maple_bus_ft0.hpp"
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#include "memorymap.hpp"
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#include "sh7091/sh7091.hpp"
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#include "sh7091/sh7091_bits.hpp"
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#include "sh7091/serial.hpp"
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#include "printf/printf.h"
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#include "math/vec2.hpp"
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#include "math/vec3.hpp"
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#include "math/vec4.hpp"
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#include "math/mat2x2.hpp"
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#include "math/mat3x3.hpp"
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#include "math/mat4x4.hpp"
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#include "math/geometry.hpp"
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#include "math/transform.hpp"
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#include "interrupt.hpp"
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#include "font/font_bitmap.hpp"
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#include "font/verite_8x16/verite_8x16.data.h"
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#include "palette.hpp"
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#include "printf/unparse.h"
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#include "assert.h"
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using vec2 = vec<2, float>;
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using vec3 = vec<3, float>;
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using vec4 = vec<4, float>;
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using mat4x4 = mat<4, 4, float>;
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#include "model/blender_export.h"
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#include "model/grid.h"
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static ft0::data_transfer::data_format data[4];
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uint8_t send_buf[1024] __attribute__((aligned(32)));
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uint8_t recv_buf[1024] __attribute__((aligned(32)));
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void do_get_condition()
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{
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auto writer = maple::host_command_writer(send_buf, recv_buf);
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using command_type = maple::get_condition;
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using response_type = maple::data_transfer<ft0::data_transfer::data_format>;
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auto [host_command, host_response]
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= writer.append_command_all_ports<command_type, response_type>();
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for (int port = 0; port < 4; port++) {
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auto& data_fields = host_command[port].bus_data.data_fields;
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data_fields.function_type = std::byteswap(function_type::controller);
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}
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maple::dma_start(send_buf, writer.send_offset,
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recv_buf, writer.recv_offset);
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for (uint8_t port = 0; port < 4; port++) {
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auto& bus_data = host_response[port].bus_data;
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if (bus_data.command_code != response_type::command_code) {
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return;
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}
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auto& data_fields = bus_data.data_fields;
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if ((std::byteswap(data_fields.function_type) & function_type::controller) == 0) {
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return;
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}
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data[port].digital_button = data_fields.data.digital_button;
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for (int i = 0; i < 6; i++) {
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data[port].analog_coordinate_axis[i]
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= data_fields.data.analog_coordinate_axis[i];
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}
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}
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}
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void vbr100()
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{
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serial::string("vbr100\n");
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interrupt_exception();
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}
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void vbr400()
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{
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serial::string("vbr400\n");
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interrupt_exception();
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}
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const int framebuffer_width = 640;
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const int framebuffer_height = 480;
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const int tile_width = framebuffer_width / 32;
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const int tile_height = framebuffer_height / 32;
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constexpr uint32_t ta_alloc = 0
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| ta_alloc_ctrl::pt_opb::no_list
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| ta_alloc_ctrl::tm_opb::no_list
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| ta_alloc_ctrl::t_opb::no_list
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| ta_alloc_ctrl::om_opb::no_list
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| ta_alloc_ctrl::o_opb::_32x4byte;
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constexpr int ta_cont_count = 1;
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constexpr struct opb_size opb_size[ta_cont_count] = {
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{
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.opaque = 32 * 4,
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.opaque_modifier = 0,
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.translucent = 0,
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.translucent_modifier = 0,
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.punch_through = 0
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}
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};
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static volatile int ta_in_use = 0;
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static volatile int core_in_use = 0;
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static volatile int next_frame = 0;
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static volatile int framebuffer_ix = 0;
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static volatile int next_frame_ix = 0;
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static inline void pump_events(uint32_t istnrm)
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{
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if (istnrm & istnrm::v_blank_in) {
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system.ISTNRM = istnrm::v_blank_in;
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next_frame = 1;
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holly.FB_R_SOF1 = texture_memory_alloc.framebuffer[next_frame_ix].start;
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}
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if (istnrm & istnrm::end_of_render_tsp) {
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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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next_frame_ix = framebuffer_ix;
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framebuffer_ix += 1;
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if (framebuffer_ix >= 3) framebuffer_ix = 0;
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core_in_use = 0;
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}
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if (istnrm & istnrm::end_of_transferring_opaque_list) {
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system.ISTNRM = istnrm::end_of_transferring_opaque_list;
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core_in_use = 1;
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core_start_render2(texture_memory_alloc.region_array.start,
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texture_memory_alloc.isp_tsp_parameters.start,
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texture_memory_alloc.background[0].start,
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texture_memory_alloc.framebuffer[framebuffer_ix].start,
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framebuffer_width);
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ta_in_use = 0;
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}
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}
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void vbr600()
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{
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uint32_t sr;
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asm volatile ("stc sr,%0" : "=r" (sr));
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sr |= sh::sr::imask(15);
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asm volatile ("ldc %0,sr" : : "r" (sr));
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//serial::string("imask\n");
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//check_pipeline();
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if (sh7091.CCN.EXPEVT == 0 && sh7091.CCN.INTEVT == 0x320) {
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uint32_t istnrm = system.ISTNRM;
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uint32_t isterr = system.ISTERR;
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if (isterr) {
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serial::string("isterr: ");
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serial::integer<uint32_t>(system.ISTERR);
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}
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pump_events(istnrm);
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sr &= ~sh::sr::imask(15);
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asm volatile ("ldc %0,sr" : : "r" (sr));
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return;
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}
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serial::string("vbr600\n");
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interrupt_exception();
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}
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void global_polygon_type_1(ta_parameter_writer& writer,
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uint32_t para_control_obj_control,
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uint32_t texture_u_v_size,
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uint32_t texture_control_word,
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const float a = 1.0f,
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const float r = 1.0f,
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const float g = 1.0f,
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const float b = 1.0f
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)
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{
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const uint32_t parameter_control_word = para_control::para_type::polygon_or_modifier_volume
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| obj_control::col_type::intensity_mode_1
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| obj_control::gouraud
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| para_control_obj_control
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;
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const uint32_t isp_tsp_instruction_word = isp_tsp_instruction_word::depth_compare_mode::greater
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| isp_tsp_instruction_word::culling_mode::no_culling
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;
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const uint32_t tsp_instruction_word = tsp_instruction_word::fog_control::no_fog
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| tsp_instruction_word::texture_shading_instruction::decal
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| tsp_instruction_word::src_alpha_instr::one
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| tsp_instruction_word::dst_alpha_instr::zero
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| texture_u_v_size
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;
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writer.append<ta_global_parameter::polygon_type_1>() =
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ta_global_parameter::polygon_type_1(parameter_control_word,
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isp_tsp_instruction_word,
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tsp_instruction_word,
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texture_control_word,
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a,
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r,
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g,
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b
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);
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}
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static inline void render_quad(ta_parameter_writer& writer,
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vec3 ap,
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vec3 bp,
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vec3 cp,
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vec3 dp,
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float ai,
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float bi,
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float ci,
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float di)
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{
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if (ap.z < 0 || bp.z < 0 || cp.z < 0 || dp.z < 0)
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return;
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writer.append<ta_vertex_parameter::polygon_type_2>() =
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ta_vertex_parameter::polygon_type_2(polygon_vertex_parameter_control_word(false),
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ap.x, ap.y, ap.z,
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ai);
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writer.append<ta_vertex_parameter::polygon_type_2>() =
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ta_vertex_parameter::polygon_type_2(polygon_vertex_parameter_control_word(false),
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bp.x, bp.y, bp.z,
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bi);
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writer.append<ta_vertex_parameter::polygon_type_2>() =
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ta_vertex_parameter::polygon_type_2(polygon_vertex_parameter_control_word(false),
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dp.x, dp.y, dp.z,
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di);
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writer.append<ta_vertex_parameter::polygon_type_2>() =
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ta_vertex_parameter::polygon_type_2(polygon_vertex_parameter_control_word(true),
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cp.x, cp.y, cp.z,
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ci);
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}
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static inline vec3 screen_transform(vec3 v)
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{
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float x2 = 640 / 2.0;
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float y2 = 480 / 2.0;
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float iz = 1.0f / v.z;
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return {
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v.x * iz * y2 + x2,
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v.y * iz * y2 + y2,
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iz,
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};
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}
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float light_intensity(vec3 l1, vec3 n)
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{
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float intensity = 0.2f;
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{
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float n_dot_l = dot(n, l1);
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if (n_dot_l > 0)
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intensity += 0.9f * n_dot_l * (inverse_length(n) * inverse_length(l1));
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}
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if (intensity > 1.0f)
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intensity = 1.0f;
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return intensity;
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}
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void transfer_mesh(ta_parameter_writer& writer, const mat4x4& trans, const mesh * mesh)
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{
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uint32_t control = para_control::list_type::opaque;
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uint32_t texture_uv_size = 0;
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uint32_t texture_control_word = 0;
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global_polygon_type_1(writer,
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control,
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texture_uv_size,
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texture_control_word);
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for (int i = 0; i < mesh->polygons_length; i++) {
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const struct polygon * polygon = &mesh->polygons[i];
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vec3 ap = trans * mesh->position[polygon->a];
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vec3 bp = trans * mesh->position[polygon->b];
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vec3 cp = trans * mesh->position[polygon->c];
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vec3 dp = trans * mesh->position[polygon->d];
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vec3 light_pos = {1.2f, 1.0f, -2.0f};
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vec3 n = normal_multiply(trans, mesh->polygon_normal[i]);
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vec3 a_light_dir = normalize(light_pos - ap);
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vec3 b_light_dir = normalize(light_pos - bp);
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vec3 c_light_dir = normalize(light_pos - cp);
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vec3 d_light_dir = normalize(light_pos - dp);
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float a_diffuse = max(dot(n, a_light_dir), 0.0f);
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float b_diffuse = max(dot(n, b_light_dir), 0.0f);
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float c_diffuse = max(dot(n, c_light_dir), 0.0f);
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float d_diffuse = max(dot(n, d_light_dir), 0.0f);
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vec3 view_pos = {0, 0, 0};
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vec3 a_view_dir = normalize(view_pos - ap);
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vec3 a_reflect_dir = reflect(-a_light_dir, n);
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float a_spec = __builtin_powf(max(dot(a_view_dir, a_reflect_dir), 0.0f), 64.0f);
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vec3 b_view_dir = normalize(view_pos - bp);
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vec3 b_reflect_dir = reflect(-b_light_dir, n);
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float b_spec = __builtin_powf(max(dot(b_view_dir, b_reflect_dir), 0.0f), 64.0f);
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vec3 c_view_dir = normalize(view_pos - cp);
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vec3 c_reflect_dir = reflect(-c_light_dir, n);
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float c_spec = __builtin_powf(max(dot(c_view_dir, c_reflect_dir), 0.0f), 64.0f);
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vec3 d_view_dir = normalize(view_pos - dp);
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vec3 d_reflect_dir = reflect(-d_light_dir, n);
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float d_spec = __builtin_powf(max(dot(d_view_dir, d_reflect_dir), 0.0f), 64.0f);
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float ai = a_diffuse * 0.7 + a_spec;
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float bi = b_diffuse * 0.7 + b_spec;
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float ci = c_diffuse * 0.7 + c_spec;
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float di = d_diffuse * 0.7 + d_spec;
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render_quad(writer,
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screen_transform(ap),
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screen_transform(bp),
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screen_transform(cp),
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screen_transform(dp),
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ai,
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bi,
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ci,
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di);
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}
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}
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void transfer_scene(ta_parameter_writer& writer, const mat4x4& screen_trans)
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{
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// opaque list
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{
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for (uint32_t i = 0; i < (sizeof (objects)) / (sizeof (objects[0])); i++) {
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mat4x4 trans = screen_trans
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* translate(objects[i].location)
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* rotate_quaternion(objects[i].rotation)
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;
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transfer_mesh(writer, trans, objects[i].mesh);
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}
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writer.append<ta_global_parameter::end_of_list>() =
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ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
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}
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}
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void update_analog(mat4x4& screen)
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{
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const float l_ = static_cast<float>(data[0].analog_coordinate_axis[0]) * (1.f / 255.f);
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const float r_ = static_cast<float>(data[0].analog_coordinate_axis[1]) * (1.f / 255.f);
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const float x_ = static_cast<float>(data[0].analog_coordinate_axis[2] - 0x80) / 127.f;
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const float y_ = static_cast<float>(data[0].analog_coordinate_axis[3] - 0x80) / 127.f;
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int ra = ft0::data_transfer::digital_button::ra(data[0].digital_button) == 0;
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int la = ft0::data_transfer::digital_button::la(data[0].digital_button) == 0;
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float yt = -0.05f * x_;
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float xt = 0.05f * y_;
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float x = 0;
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if (ra && !la) x = -0.05;
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if (la && !ra) x = 0.05;
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float y = 0;
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float z = -0.05f * r_ + 0.05f * l_;
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}
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uint8_t __attribute__((aligned(32))) ta_parameter_buf[1024 * 1024];
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int main()
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{
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sh7091.TMU.TSTR = 0; // stop all timers
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sh7091.TMU.TOCR = tmu::tocr::tcoe::tclk_is_external_clock_or_input_capture;
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sh7091.TMU.TCR0 = tmu::tcr0::tpsc::p_phi_256; // 256 / 50MHz = 5.12 μs ; underflows in ~1 hour
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sh7091.TMU.TCOR0 = 0xffff'ffff;
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sh7091.TMU.TCNT0 = 0xffff'ffff;
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sh7091.TMU.TSTR = tmu::tstr::str0::counter_start;
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serial::init(0);
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interrupt_init();
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holly.SOFTRESET = softreset::pipeline_soft_reset
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| softreset::ta_soft_reset;
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holly.SOFTRESET = 0;
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core_init();
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holly.FPU_SHAD_SCALE = fpu_shad_scale::simple_shadow_enable::parameter_selection_volume_mode;
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system.IML6NRM = istnrm::end_of_render_tsp
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| istnrm::v_blank_in
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| istnrm::end_of_transferring_opaque_list;
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region_array_multipass(tile_width,
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tile_height,
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opb_size,
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ta_cont_count,
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texture_memory_alloc.region_array.start,
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texture_memory_alloc.object_list.start);
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background_parameter2(texture_memory_alloc.background[0].start,
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0xff202040);
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ta_parameter_writer writer = ta_parameter_writer(ta_parameter_buf, (sizeof (ta_parameter_buf)));
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video_output::set_mode_vga();
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mat4x4 screen_trans = {
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1, 0, 0, 0,
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0, 1, 0, 0,
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0, 0, 1, 4,
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0, 0, 0, 1,
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};
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do_get_condition();
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while (1) {
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screen_trans = screen_trans * rotate_x(0.005f) * rotate_z(0.005f);
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maple::dma_wait_complete();
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do_get_condition();
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update_analog(screen_trans);
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writer.offset = 0;
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transfer_scene(writer, screen_trans);
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while (ta_in_use);
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while (core_in_use);
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ta_in_use = 1;
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ta_polygon_converter_init2(texture_memory_alloc.isp_tsp_parameters.start,
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texture_memory_alloc.isp_tsp_parameters.end,
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texture_memory_alloc.object_list.start,
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texture_memory_alloc.object_list.end,
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opb_size[0].total(),
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ta_alloc,
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tile_width,
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tile_height);
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ta_polygon_converter_writeback(writer.buf, writer.offset);
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ta_polygon_converter_transfer(writer.buf, writer.offset);
|
|
|
|
while (next_frame == 0);
|
|
next_frame = 0;
|
|
}
|
|
}
|