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example: add md5

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This commit is contained in:
Zack Buhman 2025-05-12 06:17:46 -05:00
parent e7d85097b1
commit f14e958ec2
5 changed files with 1536 additions and 1029 deletions
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20
example/example.mk
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@ -1059,3 +1059,23 @@ LIGHTING_MAPS_OBJ = \
example/lighting_maps.elf: LDSCRIPT = $(LIB)/main.lds
example/lighting_maps.elf: $(START_OBJ) $(LIGHTING_MAPS_OBJ)
MD5_OBJ = \
example/md5.o \
holly/core.o \
holly/region_array.o \
holly/background.o \
holly/ta_fifo_polygon_converter.o \
holly/video_output.o \
sh7091/serial.o \
maple/maple.o \
sh7091/c_serial.o \
printf/printf.o \
printf/unparse.o \
printf/parse.o \
texture/container/container2.data.o \
texture/container/container2_specular.data.o \
$(LIBGCC)
example/md5.elf: LDSCRIPT = $(LIB)/main.lds
example/md5.elf: $(START_OBJ) $(MD5_OBJ)

3
example/lighting_maps.cpp
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@ -573,7 +573,8 @@ int main()
system.IML6NRM = istnrm::end_of_render_tsp
| istnrm::v_blank_in
| istnrm::end_of_transferring_opaque_list;
| istnrm::end_of_transferring_opaque_list
| istnrm::end_of_transferring_translucent_list;
region_array_multipass(tile_width,
tile_height,

486
example/md5.cpp Normal file
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@ -0,0 +1,486 @@
#include <bit>
#include "holly/background.hpp"
#include "holly/core.hpp"
#include "holly/core_bits.hpp"
#include "holly/holly.hpp"
#include "holly/isp_tsp.hpp"
#include "holly/region_array.hpp"
#include "holly/ta_bits.hpp"
#include "holly/ta_fifo_polygon_converter.hpp"
#include "holly/ta_global_parameter.hpp"
#include "holly/ta_parameter.hpp"
#include "holly/ta_vertex_parameter.hpp"
#include "holly/texture_memory_alloc5.hpp"
#include "holly/video_output.hpp"
#include "systembus.hpp"
#include "systembus_bits.hpp"
#include "maple/maple.hpp"
#include "maple/maple_host_command_writer.hpp"
#include "maple/maple_bus_bits.hpp"
#include "maple/maple_bus_commands.hpp"
#include "maple/maple_bus_ft0.hpp"
#include "memorymap.hpp"
#include "sh7091/sh7091.hpp"
#include "sh7091/sh7091_bits.hpp"
#include "sh7091/serial.hpp"
#include "printf/printf.h"
#include "interrupt.hpp"
#include "assert.h"
#include "math/vec2.hpp"
#include "math/vec3.hpp"
#include "math/vec4.hpp"
#include "math/mat2x2.hpp"
#include "math/mat3x3.hpp"
#include "math/mat4x4.hpp"
#include "math/geometry.hpp"
#include "math/transform.hpp"
using vec2 = vec<2, float>;
using vec3 = vec<3, float>;
using vec4 = vec<4, float>;
using mat4x4 = mat<4, 4, float>;
#include "md5/md5.h"
#include "model/boblamp/boblamp.h"
static ft0::data_transfer::data_format data[4];
uint8_t send_buf[1024] __attribute__((aligned(32)));
uint8_t recv_buf[1024] __attribute__((aligned(32)));
void do_get_condition()
{
auto writer = maple::host_command_writer(send_buf, recv_buf);
using command_type = maple::get_condition;
using response_type = maple::data_transfer<ft0::data_transfer::data_format>;
auto [host_command, host_response]
= writer.append_command_all_ports<command_type, response_type>();
for (int port = 0; port < 4; port++) {
auto& data_fields = host_command[port].bus_data.data_fields;
data_fields.function_type = std::byteswap(function_type::controller);
}
maple::dma_start(send_buf, writer.send_offset,
recv_buf, writer.recv_offset);
for (uint8_t port = 0; port < 4; port++) {
auto& bus_data = host_response[port].bus_data;
if (bus_data.command_code != response_type::command_code) {
return;
}
auto& data_fields = bus_data.data_fields;
if ((std::byteswap(data_fields.function_type) & function_type::controller) == 0) {
return;
}
data[port].digital_button = data_fields.data.digital_button;
for (int i = 0; i < 6; i++) {
data[port].analog_coordinate_axis[i]
= data_fields.data.analog_coordinate_axis[i];
}
}
}
void vbr100()
{
serial::string("vbr100\n");
interrupt_exception();
}
void vbr400()
{
serial::string("vbr400\n");
interrupt_exception();
}
const int framebuffer_width = 640;
const int framebuffer_height = 480;
const int tile_width = framebuffer_width / 32;
const int tile_height = framebuffer_height / 32;
constexpr uint32_t ta_alloc = 0
| ta_alloc_ctrl::pt_opb::no_list
| ta_alloc_ctrl::tm_opb::no_list
| ta_alloc_ctrl::t_opb::no_list
| ta_alloc_ctrl::om_opb::no_list
| ta_alloc_ctrl::o_opb::_32x4byte;
constexpr int ta_cont_count = 1;
constexpr struct opb_size opb_size[ta_cont_count] = {
{
.opaque = 32 * 4,
.opaque_modifier = 0,
.translucent = 0,
.translucent_modifier = 0,
.punch_through = 0
}
};
static volatile int ta_in_use = 0;
static volatile int core_in_use = 0;
static volatile int next_frame = 0;
static volatile int framebuffer_ix = 0;
static volatile int next_frame_ix = 0;
static inline void pump_events(uint32_t istnrm)
{
if (istnrm & istnrm::v_blank_in) {
system.ISTNRM = istnrm::v_blank_in;
next_frame = 1;
holly.FB_R_SOF1 = texture_memory_alloc.framebuffer[next_frame_ix].start;
}
if (istnrm & istnrm::end_of_render_tsp) {
system.ISTNRM = istnrm::end_of_render_tsp
| istnrm::end_of_render_isp
| istnrm::end_of_render_video;
next_frame_ix = framebuffer_ix;
framebuffer_ix += 1;
if (framebuffer_ix >= 3) framebuffer_ix = 0;
core_in_use = 0;
}
if (istnrm & istnrm::end_of_transferring_opaque_list) {
system.ISTNRM = istnrm::end_of_transferring_opaque_list;
core_in_use = 1;
core_start_render2(texture_memory_alloc.region_array.start,
texture_memory_alloc.isp_tsp_parameters.start,
texture_memory_alloc.background[0].start,
texture_memory_alloc.framebuffer[framebuffer_ix].start,
framebuffer_width);
assert(ta_in_use);
ta_in_use = 0;
}
}
void vbr600()
{
uint32_t sr;
asm volatile ("stc sr,%0" : "=r" (sr));
sr |= sh::sr::imask(15);
asm volatile ("ldc %0,sr" : : "r" (sr));
//serial::string("imask\n");
//check_pipeline();
if (sh7091.CCN.EXPEVT == 0 && sh7091.CCN.INTEVT == 0x320) {
uint32_t istnrm = system.ISTNRM;
uint32_t isterr = system.ISTERR;
if (isterr) {
serial::string("isterr: ");
serial::integer<uint32_t>(system.ISTERR);
}
pump_events(istnrm);
sr &= ~sh::sr::imask(15);
asm volatile ("ldc %0,sr" : : "r" (sr));
return;
}
serial::string("vbr600\n");
interrupt_exception();
}
void global_polygon_type_1(ta_parameter_writer& writer,
uint32_t para_control_obj_control,
uint32_t tsp_instruction_word,
uint32_t texture_control_word,
const float a = 1.0f,
const float r = 1.0f,
const float g = 1.0f,
const float b = 1.0f
)
{
const uint32_t parameter_control_word = para_control::para_type::polygon_or_modifier_volume
| obj_control::col_type::intensity_mode_1
| obj_control::gouraud
| para_control_obj_control
;
const uint32_t isp_tsp_instruction_word = isp_tsp_instruction_word::depth_compare_mode::greater
| isp_tsp_instruction_word::culling_mode::no_culling
;
writer.append<ta_global_parameter::polygon_type_1>() =
ta_global_parameter::polygon_type_1(parameter_control_word,
isp_tsp_instruction_word,
tsp_instruction_word,
texture_control_word,
a,
r,
g,
b
);
}
void transfer_triangle(ta_parameter_writer& writer,
vec3 ap,
vec3 bp,
vec3 cp,
float ai,
float bi,
float ci
)
{
if (ap.z < 0 || bp.z < 0 || cp.z < 0)
return;
writer.append<ta_vertex_parameter::polygon_type_2>() =
ta_vertex_parameter::polygon_type_2(polygon_vertex_parameter_control_word(false),
ap.x, ap.y, ap.z,
ai);
writer.append<ta_vertex_parameter::polygon_type_2>() =
ta_vertex_parameter::polygon_type_2(polygon_vertex_parameter_control_word(false),
bp.x, bp.y, bp.z,
bi);
writer.append<ta_vertex_parameter::polygon_type_2>() =
ta_vertex_parameter::polygon_type_2(polygon_vertex_parameter_control_word(true),
cp.x, cp.y, cp.z,
ci);
}
vec4 quaternion_normalize(vec4 q)
{
float mag = magnitude(q);
if (mag > 0.0f) {
return q * (1.0f / mag);
} else {
return q;
}
}
vec4 quaternion_mul_quaternion(vec4 a, vec4 b)
{
return (vec4){
(a.x * b.w) + (a.w * b.x) + (a.y * b.z) - (a.z * b.y),
(a.y * b.w) + (a.w * b.y) + (a.z * b.x) - (a.x * b.z),
(a.z * b.w) + (a.w * b.z) + (a.x * b.y) - (a.y * b.x),
(a.w * b.w) - (a.x * b.x) - (a.y * b.y) - (a.z * b.z),
};
}
vec4 quaternion_mul_vec4(vec4 q, vec3 v)
{
return (vec4){
(q.w * v.x) + (q.y * v.z) - (q.z * v.y),
(q.w * v.y) + (q.z * v.x) - (q.x * v.z),
(q.w * v.z) + (q.x * v.y) - (q.y * v.x),
- (q.x * v.x) - (q.y * v.y) - (q.z * v.z),
};
}
vec3 quaternion_rotate_point(vec4 q, vec3 v)
{
vec4 neg = {
-q.x,
-q.y,
-q.z,
q.w,
};
vec4 qv = quaternion_mul_quaternion(quaternion_mul_vec4(q, v),
quaternion_normalize(neg));
return (vec3){qv.x, qv.y, qv.z};
}
vec3 vertex_weights(const md5_mesh_joint * joints,
const md5_mesh_mesh * mesh,
const md5_mesh_vert * v)
{
const md5_mesh_weight * weights = &mesh->weights[v->weight_index];
vec3 sum = {0, 0, 0};
for (int i = 0; i < v->weight_elem; i++) {
const md5_mesh_weight * weight = &weights[i];
const md5_mesh_joint * joint = &joints[weight->joint_index];
vec3 rv = quaternion_rotate_point(joint->orient, weight->pos);
sum += (joint->pos + rv) * weight->weight_value;
}
return sum;
}
static inline vec3 screen_transform(vec3 v)
{
float x2 = 640 / 2.0;
float y2 = 480 / 2.0;
float iz = 1.0f / v.z;
return {
v.x * iz * y2 + x2,
v.y * iz * y2 + y2,
iz,
};
}
float light_intensity(vec3 l1, vec3 n)
{
float intensity = 0.2f;
{
float n_dot_l = dot(n, l1);
if (n_dot_l > 0)
intensity += 0.9f * n_dot_l * (inverse_length(n) * inverse_length(l1));
}
if (intensity > 1.0f)
intensity = 1.0f;
return intensity;
}
void transfer_mesh(ta_parameter_writer& writer,
const mat4x4& screen_trans,
const md5_mesh_joint * joints,
const md5_mesh_mesh * mesh)
{
const vec3 light_pos = {1.2f, 1.0f, -2.0f};
for (int i = 0; i < mesh->num_tris; i++) {
const md5_mesh_tri * tri = &mesh->tris[i];
const md5_mesh_vert * av = &mesh->verts[tri->vert_index.a];
const md5_mesh_vert * bv = &mesh->verts[tri->vert_index.b];
const md5_mesh_vert * cv = &mesh->verts[tri->vert_index.c];
vec3 ap = screen_trans * vertex_weights(joints, mesh, av);
vec3 bp = screen_trans * vertex_weights(joints, mesh, bv);
vec3 cp = screen_trans * vertex_weights(joints, mesh, cv);
vec3 n = -normalize(cross(bp - ap, cp - ap));
vec3 a_light_dir = normalize(light_pos - ap);
vec3 b_light_dir = normalize(light_pos - bp);
vec3 c_light_dir = normalize(light_pos - cp);
float a_diffuse = max(dot(n, a_light_dir), 0.0f);
float b_diffuse = max(dot(n, b_light_dir), 0.0f);
float c_diffuse = max(dot(n, c_light_dir), 0.0f);
transfer_triangle(writer,
screen_transform(ap),
screen_transform(bp),
screen_transform(cp),
a_diffuse,
b_diffuse,
c_diffuse);
}
}
void transfer_scene(ta_parameter_writer& writer,
const mat4x4& screen_trans)
{
uint32_t control = para_control::list_type::opaque;
uint32_t tsp_instruction_word = tsp_instruction_word::src_alpha_instr::one
| tsp_instruction_word::dst_alpha_instr::zero
| tsp_instruction_word::fog_control::no_fog
| tsp_instruction_word::texture_shading_instruction::decal;
uint32_t texture_control_word = 0;
global_polygon_type_1(writer,
control,
tsp_instruction_word,
texture_control_word);
for (int i = 0; i < boblamp_mesh.num_meshes; i++) {
transfer_mesh(writer, screen_trans, boblamp_mesh.joints, &boblamp_mesh.meshes[i]);
}
writer.append<ta_global_parameter::end_of_list>() =
ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
}
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;
sh7091.TMU.TCNT0 = 0xffff'ffff;
sh7091.TMU.TSTR = tmu::tstr::str0::counter_start;
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;
do_get_condition();
while (1) {
maple::dma_wait_complete();
do_get_condition();
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;
}
}

2
md5/md5mesh_gen.py
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@ -37,7 +37,7 @@ def render_md5_mesh_vert(vert):
def render_md5_mesh_tri(tri):
yield f".tri_index = {tri.tri_index},"
vi = f"{{{tri.vert_index2}, {tri.vert_index2}, {tri.vert_index3}}}"
vi = f"{{{tri.vert_index1}, {tri.vert_index2}, {tri.vert_index3}}}"
yield f".vert_index = {vi},"
def render_md5_mesh_weight(weight):

2054
model/boblamp/boblamp.h
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