565 lines
17 KiB
C++
565 lines
17 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 "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 li)
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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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li);
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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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li);
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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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li);
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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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li);
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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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#define _fsrra(n) (1.0f / (__builtin_sqrtf(n)))
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static inline float inverse_length(vec3 v)
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{
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float f = dot(v, v);
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return _fsrra(f);
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}
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float light_intensity(vec3 l1, vec3 l2, 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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{
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float n_dot_l = dot(n, l2);
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if (n_dot_l > 0)
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intensity += 0.9f * n_dot_l * (inverse_length(n) * inverse_length(l2));
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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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constexpr int animation_frames = 26;
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constexpr int ticks_per_animation_frame = 64;
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constexpr float tick_div = 1.0f / (float)ticks_per_animation_frame;
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void transfer_mesh(ta_parameter_writer& writer, const mat4x4& trans, const object * object, int animation_tick)
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{
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const mesh * mesh = object->mesh;
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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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vec3 position_cache[mesh->position_length];
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vec3 normal_cache[mesh->normal_length];
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int frame_ix0 = animation_tick / ticks_per_animation_frame;
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int frame_ix1 = frame_ix0 + 1;
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if (frame_ix1 >= animation_frames)
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frame_ix1 = 0;
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float lerp = (float)(animation_tick - (frame_ix0 * ticks_per_animation_frame)) * tick_div;
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const transform& t0 = object->transforms[frame_ix0];
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const transform& t1 = object->transforms[frame_ix1];
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vec3 location = t0.location + ((t1.location - t0.location) * lerp);
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vec4 rotation = t0.rotation + ((t1.rotation - t0.rotation) * lerp);
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vec3 _scale = t0.scale + ((t1.scale - t0.scale) * lerp);
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mat4x4 trans1 = trans
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* translate(location)
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* quaternion(rotation)
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* scale(_scale);
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for (int i = 0; i < mesh->position_length; i++) {
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position_cache[i] = trans1 * mesh->position[i];
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normal_cache[i] = normal_transform(trans * quaternion(rotation), mesh->normal[i]);
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}
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for (int i = 0; i < mesh->polygons_length; i++) {
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const polygon * p = &mesh->polygons[i];
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vec3 ap = screen_transform(position_cache[p->a]);
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vec3 bp = screen_transform(position_cache[p->b]);
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vec3 cp = screen_transform(position_cache[p->c]);
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vec3 dp = screen_transform(position_cache[p->d]);
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float li = light_intensity(light_vec, light_vec2, normal_cache[p->a]);
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assert(li > 0);
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render_quad(writer, ap, bp, cp, dp, li);
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}
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}
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void transfer_scene(ta_parameter_writer& writer, const mat4x4& trans, int animation_tick)
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{
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// opaque list
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{
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transfer_mesh(writer, trans, &objects[0], animation_tick);
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transfer_mesh(writer, trans, &objects[1], animation_tick);
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transfer_mesh(writer, trans, &objects[2], animation_tick);
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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, mat4x4& model)
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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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mat4x4 t = {
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1, 0, 0, x,
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0, 1, 0, z,
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0, 0, 1, y,
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0, 0, 0, 1,
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};
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mat4x4 rx = {
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1, 0, 0, 0,
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0, cos(xt), -sin(xt), 0,
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0, sin(xt), cos(xt), 0,
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0, 0, 0, 1,
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};
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mat4x4 ry = {
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cos(yt), 0, sin(yt), 0,
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0, 1, 0, 0,
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-sin(yt), 0, cos(yt), 0,
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0, 0, 0, 1,
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};
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screen = screen * t;
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model = model * ry * rx;
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}
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int format_float(char * s, float num, int pad_length)
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{
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int offset = 0;
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bool negative = num < 0;
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if (negative) num = -num;
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int32_t whole = num;
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int digits = digits_base10(whole);
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offset += unparse_base10_unsigned(&s[offset], whole, pad_length, ' ');
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if (negative)
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s[offset - (digits + 1)] = '-';
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s[offset++] = '.';
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int32_t fraction = (int32_t)((num - (float)whole) * 1000.0);
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if (fraction < 0)
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fraction = -fraction;
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offset += unparse_base10_unsigned(&s[offset], fraction, 3, '0');
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return offset;
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}
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void render_matrix(ta_parameter_writer& writer, const mat4x4& trans)
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{
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for (int row = 0; row < 4; row++) {
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char __attribute__((aligned(4))) s[64];
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for (uint32_t i = 0; i < (sizeof (s)) / 4; i++)
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reinterpret_cast<uint32_t *>(s)[i] = 0x20202020;
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int offset = 0;
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offset += format_float(&s[offset], trans[row][0], 7);
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offset += format_float(&s[offset], trans[row][1], 7);
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offset += format_float(&s[offset], trans[row][2], 7);
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offset += format_float(&s[offset], trans[row][3], 7);
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serial::string((uint8_t *)s, offset);
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serial::character('\n');
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}
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serial::character('\n');
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}
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uint8_t __attribute__((aligned(32))) ta_parameter_buf[1024 * 1024 * 3];
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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();
|
|
|
|
holly.FPU_SHAD_SCALE = fpu_shad_scale::simple_shadow_enable::parameter_selection_volume_mode;
|
|
|
|
system.IML6NRM = istnrm::end_of_render_tsp
|
|
| istnrm::v_blank_in
|
|
| istnrm::end_of_transferring_opaque_list;
|
|
|
|
region_array_multipass(tile_width,
|
|
tile_height,
|
|
opb_size,
|
|
ta_cont_count,
|
|
texture_memory_alloc.region_array.start,
|
|
texture_memory_alloc.object_list.start);
|
|
|
|
background_parameter2(texture_memory_alloc.background[0].start,
|
|
0xff202040);
|
|
|
|
ta_parameter_writer writer = ta_parameter_writer(ta_parameter_buf, (sizeof (ta_parameter_buf)));
|
|
|
|
video_output::set_mode_vga();
|
|
|
|
mat4x4 screen_trans = {
|
|
1, 0, 0, 0,
|
|
0, 0, -1, 0,
|
|
0, 1, 0, 7,
|
|
0, 0, 0, 1,
|
|
};
|
|
|
|
mat4x4 model_trans = {
|
|
0.805, -0.577, 0.136, 0,
|
|
0.592, 0.773, -0.224, 0,
|
|
0.024, 0.262, 0.964, 0,
|
|
0, 0, 0, 1,
|
|
};
|
|
|
|
do_get_condition();
|
|
int animation_tick = 0;
|
|
while (1) {
|
|
if (0 && animation_tick == 0) {
|
|
serial::string("screen:\n");
|
|
render_matrix(writer, screen_trans);
|
|
serial::string("model:\n");
|
|
render_matrix(writer, model_trans);
|
|
}
|
|
|
|
maple::dma_wait_complete();
|
|
do_get_condition();
|
|
writer.offset = 0;
|
|
|
|
update_analog(screen_trans, model_trans);
|
|
transfer_scene(writer, screen_trans * model_trans, animation_tick);
|
|
|
|
// increment tick
|
|
animation_tick += 1;
|
|
if (animation_tick >= animation_frames * ticks_per_animation_frame)
|
|
animation_tick = 0;
|
|
|
|
while (ta_in_use);
|
|
while (core_in_use);
|
|
ta_in_use = 1;
|
|
ta_polygon_converter_init2(texture_memory_alloc.isp_tsp_parameters.start,
|
|
texture_memory_alloc.isp_tsp_parameters.end,
|
|
texture_memory_alloc.object_list.start,
|
|
texture_memory_alloc.object_list.end,
|
|
opb_size[0].total(),
|
|
ta_alloc,
|
|
tile_width,
|
|
tile_height);
|
|
ta_polygon_converter_writeback(writer.buf, writer.offset);
|
|
ta_polygon_converter_transfer(writer.buf, writer.offset);
|
|
|
|
while (next_frame)
|
|
next_frame = 0;
|
|
}
|
|
}
|