641 lines
19 KiB
C++
641 lines
19 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 "interrupt.hpp"
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#include "assert.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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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 "md5/md5mesh.h"
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#include "md5/md5anim.h"
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#include "model/boblamp/boblamp_mesh.h"
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#include "model/boblamp/boblamp_anim.h"
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static int joint_ix_sel = 0;
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static int animation_tick = 0;
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static int animation_frames = 0;
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constexpr int ticks_per_animation_frame = 3;
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constexpr float tick_div = 1.0f / (float)ticks_per_animation_frame;
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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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assert(ta_in_use);
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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_0(ta_parameter_writer& writer,
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uint32_t para_control_obj_control,
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uint32_t tsp_instruction_word,
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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::floating_color
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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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writer.append<ta_global_parameter::polygon_type_0>() =
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ta_global_parameter::polygon_type_0(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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0,
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0
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);
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}
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void transfer_triangle(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 ac,
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vec3 bc,
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vec3 cc
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)
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{
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if (ap.z < 0 || bp.z < 0 || cp.z < 0)
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return;
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writer.append<ta_vertex_parameter::polygon_type_1>() =
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ta_vertex_parameter::polygon_type_1(polygon_vertex_parameter_control_word(false),
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ap.x, ap.y, ap.z,
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1.0,
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ac.x, ac.y, ac.z);
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writer.append<ta_vertex_parameter::polygon_type_1>() =
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ta_vertex_parameter::polygon_type_1(polygon_vertex_parameter_control_word(false),
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bp.x, bp.y, bp.z,
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1.0,
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bc.x, bc.y, bc.z);
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writer.append<ta_vertex_parameter::polygon_type_1>() =
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ta_vertex_parameter::polygon_type_1(polygon_vertex_parameter_control_word(true),
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cp.x, cp.y, cp.z,
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1.0,
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cc.x, cc.y, cc.z);
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}
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vec4 quaternion_normalize(vec4 q)
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{
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float mag = magnitude(q);
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if (mag > 0.0f) {
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return q * (1.0f / mag);
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} else {
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return q;
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}
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}
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vec4 quaternion_mul_quaternion(vec4 a, vec4 b)
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{
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return (vec4){
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(a.x * b.w) + (a.w * b.x) + (a.y * b.z) - (a.z * b.y),
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(a.y * b.w) + (a.w * b.y) + (a.z * b.x) - (a.x * b.z),
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(a.z * b.w) + (a.w * b.z) + (a.x * b.y) - (a.y * b.x),
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(a.w * b.w) - (a.x * b.x) - (a.y * b.y) - (a.z * b.z),
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};
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}
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vec4 quaternion_mul_vec4(vec4 q, vec3 v)
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{
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return (vec4){
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(q.w * v.x) + (q.y * v.z) - (q.z * v.y),
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(q.w * v.y) + (q.z * v.x) - (q.x * v.z),
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(q.w * v.z) + (q.x * v.y) - (q.y * v.x),
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- (q.x * v.x) - (q.y * v.y) - (q.z * v.z),
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};
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}
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vec3 quaternion_rotate_point(vec4 q, vec3 v)
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{
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vec4 neg = {
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-q.x,
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-q.y,
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-q.z,
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q.w,
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};
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vec4 qv = quaternion_mul_quaternion(quaternion_mul_vec4(q, v),
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quaternion_normalize(neg));
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return (vec3){qv.x, qv.y, qv.z};
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}
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static inline float quaternion_unit_w(vec4 q)
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{
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float t = 1.0 - (q.x * q.x) - (q.y * q.y) - (q.z * q.z);
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if (t < 0.0)
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return 0.0;
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else
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return -sqrt(t);
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}
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struct pos_orient {
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vec3 pos;
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vec4 orient;
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};
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pos_orient skeleton0[64];
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pos_orient skeleton1[64];
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void build_skeleton(const md5_anim * anim, int frame_ix, pos_orient * skeleton)
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{
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for (int i = 0; i < anim->num_joints; i++) {
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md5_anim_base_frame * base_frame = &anim->base_frame[i];
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vec3 pos = base_frame->pos;
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vec4 orient = base_frame->orient;
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float * frame = anim->frame[frame_ix];
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md5_anim_hierarchy * hierarchy = &anim->hierarchy[i];
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assert(hierarchy->flags == 0b111111);
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pos.x = frame[hierarchy->start_index + 0];
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pos.y = frame[hierarchy->start_index + 1];
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pos.z = frame[hierarchy->start_index + 2];
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orient.x = frame[hierarchy->start_index + 3];
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orient.y = frame[hierarchy->start_index + 4];
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orient.z = frame[hierarchy->start_index + 5];
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orient.w = quaternion_unit_w(orient);
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if (hierarchy->parent_index >= 0) {
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pos_orient * parent = &skeleton[hierarchy->parent_index];
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vec3 rpos = quaternion_rotate_point(parent->orient, pos);
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pos = rpos + parent->pos;
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orient = quaternion_mul_quaternion(parent->orient, orient);
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orient = quaternion_normalize(orient);
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}
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skeleton[i].pos = pos;
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skeleton[i].orient = orient;
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}
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}
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void interpolate_skeleton(int length, pos_orient * a, pos_orient * b, float lerp)
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{
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for (int i = 0; i < length; i++) {
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a[i].pos = a[i].pos + (b[i].pos - a[i].pos) * lerp;
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a[i].orient = a[i].orient + (b[i].orient - a[i].orient) * lerp;
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}
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}
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vec3 vertex_weights(const md5_mesh_joint * joints,
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const md5_mesh_mesh * mesh,
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const md5_mesh_vert * v)
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{
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const md5_mesh_weight * weights = &mesh->weights[v->weight_index];
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vec3 sum = {0, 0, 0};
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for (int i = 0; i < v->weight_elem; i++) {
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const md5_mesh_weight * weight = &weights[i];
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//const md5_mesh_joint * joint = &joints[weight->joint_index];
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pos_orient * joint = &skeleton0[weight->joint_index];
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vec3 rv = quaternion_rotate_point(joint->orient, weight->pos);
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sum += (joint->pos + rv) * weight->weight_value;
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}
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return sum;
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}
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vec3 vertex_weight_color(const md5_mesh_joint * joints,
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const md5_mesh_mesh * mesh,
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const md5_mesh_vert * v)
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{
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const md5_mesh_weight * weights = &mesh->weights[v->weight_index];
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for (int i = 0; i < v->weight_elem; i++) {
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const md5_mesh_weight * weight = &weights[i];
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if (weight->joint_index == joint_ix_sel) {
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return {weight->weight_value, 1.0f - weight->weight_value, 0.0};
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}
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}
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return {0.0, 0.0, 1.0};
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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,
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const mat4x4& screen_trans,
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const md5_mesh_joint * joints,
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const md5_mesh_mesh * mesh)
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{
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const vec3 light_pos = {1.2f, 1.0f, -2.0f};
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for (int i = 0; i < mesh->num_tris; i++) {
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const md5_mesh_tri * tri = &mesh->tris[i];
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const md5_mesh_vert * av = &mesh->verts[tri->vert_index.a];
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const md5_mesh_vert * bv = &mesh->verts[tri->vert_index.b];
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const md5_mesh_vert * cv = &mesh->verts[tri->vert_index.c];
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vec3 ap = screen_trans * vertex_weights(joints, mesh, av);
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vec3 bp = screen_trans * vertex_weights(joints, mesh, bv);
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vec3 cp = screen_trans * vertex_weights(joints, mesh, cv);
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vec3 n = -normalize(cross(bp - ap, cp - ap));
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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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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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vec3 ac = vertex_weight_color(joints, mesh, av);
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vec3 bc = vertex_weight_color(joints, mesh, bv);
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vec3 cc = vertex_weight_color(joints, mesh, cv);
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transfer_triangle(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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ac * a_diffuse,
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bc * b_diffuse,
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cc * c_diffuse
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);
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}
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}
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void transfer_scene(ta_parameter_writer& writer,
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const mat4x4& screen_trans)
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{
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uint32_t control = para_control::list_type::opaque;
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uint32_t tsp_instruction_word = tsp_instruction_word::src_alpha_instr::one
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| tsp_instruction_word::dst_alpha_instr::zero
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| tsp_instruction_word::fog_control::no_fog
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| tsp_instruction_word::texture_shading_instruction::decal;
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uint32_t texture_control_word = 0;
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global_polygon_type_0(writer,
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control,
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tsp_instruction_word,
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texture_control_word);
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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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md5_anim * anim = &boblamp_anim;
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build_skeleton(anim, frame_ix0, skeleton0);
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build_skeleton(anim, frame_ix1, skeleton1);
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float lerp = (float)(animation_tick - (frame_ix0 * ticks_per_animation_frame)) * tick_div;
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interpolate_skeleton(anim->num_joints, skeleton0, skeleton1, lerp);
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for (int i = 0; i < boblamp_mesh.num_meshes; i++) {
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transfer_mesh(writer, screen_trans, boblamp_mesh.joints, &boblamp_mesh.meshes[i]);
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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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void update_maple(struct md5_mesh * m, struct md5_anim * a)
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{
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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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int ua = ft0::data_transfer::digital_button::ua(data[0].digital_button) == 0;
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int da = ft0::data_transfer::digital_button::da(data[0].digital_button) == 0;
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static int last_ra = 0;
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static int last_la = 0;
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static int last_ua = 0;
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static int last_da = 0;
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if (ra && last_ra == 0) {
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joint_ix_sel += 1;
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printf("joint_ix_sel: %d\n", joint_ix_sel);
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if (joint_ix_sel >= m->num_joints)
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joint_ix_sel = 0;
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}
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if (la && last_la == 0) {
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joint_ix_sel -= 1;
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printf("joint_ix_sel: %d\n", joint_ix_sel);
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if (joint_ix_sel < 0)
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joint_ix_sel = m->num_joints - 1;
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}
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|
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|
/*
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if (ua && last_ua == 0) {
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frame_ix_sel += 1;
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printf("frame_ix_sel: %d\n", frame_ix_sel);
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if (frame_ix_sel >= a->num_frames)
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frame_ix_sel = 0;
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}
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if (da && last_da == 0) {
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|
frame_ix_sel -= 1;
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printf("frame_ix_sel: %d\n", frame_ix_sel);
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if (frame_ix_sel < 0)
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frame_ix_sel = a->num_frames - 1;
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}
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|
*/
|
|
|
|
last_ra = ra;
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|
last_la = la;
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|
last_ua = ua;
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|
last_da = da;
|
|
}
|
|
|
|
uint8_t __attribute__((aligned(32))) ta_parameter_buf[1024 * 1024];
|
|
|
|
int main()
|
|
{
|
|
sh7091.TMU.TSTR = 0; // stop all timers
|
|
sh7091.TMU.TOCR = tmu::tocr::tcoe::tclk_is_external_clock_or_input_capture;
|
|
sh7091.TMU.TCR0 = tmu::tcr0::tpsc::p_phi_256; // 256 / 50MHz = 5.12 μs ; underflows in ~1 hour
|
|
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);
|
|
|
|
interrupt_init();
|
|
|
|
holly.SOFTRESET = softreset::pipeline_soft_reset
|
|
| softreset::ta_soft_reset;
|
|
holly.SOFTRESET = 0;
|
|
|
|
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, 40,
|
|
0, 0, 0, 1,
|
|
};
|
|
|
|
screen_trans = translate((vec3){0, 30, 0}) * screen_trans;
|
|
|
|
animation_tick = 0;
|
|
animation_frames = boblamp_anim.num_frames;
|
|
do_get_condition();
|
|
while (1) {
|
|
maple::dma_wait_complete();
|
|
do_get_condition();
|
|
update_maple(&boblamp_mesh, &boblamp_anim);
|
|
|
|
//screen_trans = screen_trans * rotate_z(0.01f);
|
|
|
|
writer.offset = 0;
|
|
transfer_scene(writer, screen_trans);
|
|
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 == 0);
|
|
next_frame = 0;
|
|
|
|
// increment tick
|
|
animation_tick += 1;
|
|
if (animation_tick >= animation_frames * ticks_per_animation_frame)
|
|
animation_tick = 0;
|
|
}
|
|
}
|