dreamcast/example/bump.cpp

634 lines
19 KiB
C++

#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 "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 "interrupt.hpp"
#include "font/font_bitmap.hpp"
#include "font/verite_8x16/verite_8x16.data.h"
#include "palette.hpp"
#include "printf/unparse.h"
#include "texture/bump/bump.data.h"
#include "assert.h"
constexpr int font_base = 64 + (((0x7f - 0x20) + 1) * 8 * 16 / 2);
using vec2 = vec<2, float>;
using vec3 = vec<3, float>;
using vec4 = vec<4, float>;
using mat4x4 = mat<4, 4, float>;
static ft0::data_transfer::data_format data[4];
static int k1 = 0;
static int k2 = 0;
static int k3 = 0;
static int q = 0;
static int pcw_offset = 0;
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::_32x4byte
| 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 = 32 * 4,
.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_translucent_list) {
system.ISTNRM = istnrm::end_of_transferring_translucent_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);
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();
}
const vec3 position[] = {
{ -0.5f, -0.5f, 0.1f},
{ -0.5f, 0.5f, 0.1f},
{ 0.5f, 0.5f, 0.1f},
{ 0.5f, -0.5f, 0.1f},
};
const vec2 texture[] = {
{0.f, 0.f},
{0.f, 1.f},
{1.f, 1.f},
{1.f, 0.f},
};
void global_polygon_type_0(ta_parameter_writer& writer,
uint32_t para_control_obj_control,
uint32_t tsp_instruction,
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::packed_color
| 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
;
const uint32_t tsp_instruction_word = tsp_instruction_word::fog_control::no_fog
| tsp_instruction_word::texture_shading_instruction::decal
| tsp_instruction
;
writer.append<ta_global_parameter::polygon_type_0>() =
ta_global_parameter::polygon_type_0(parameter_control_word,
isp_tsp_instruction_word,
tsp_instruction_word,
texture_control_word,
0,
0
);
}
static inline void render_quad(ta_parameter_writer& writer,
vec3 ap,
vec3 bp,
vec3 cp,
vec3 dp,
vec2 at,
vec2 bt,
vec2 ct,
vec2 dt,
uint32_t base_color,
uint32_t offset_color)
{
if (ap.z < 0 || bp.z < 0 || cp.z < 0 || dp.z < 0)
return;
writer.append<ta_vertex_parameter::polygon_type_3>() =
ta_vertex_parameter::polygon_type_3(polygon_vertex_parameter_control_word(false),
ap.x, ap.y, ap.z,
at.x, at.y,
base_color,
offset_color);
writer.append<ta_vertex_parameter::polygon_type_3>() =
ta_vertex_parameter::polygon_type_3(polygon_vertex_parameter_control_word(false),
bp.x, bp.y, bp.z,
bt.x, bt.y,
base_color,
offset_color);
writer.append<ta_vertex_parameter::polygon_type_3>() =
ta_vertex_parameter::polygon_type_3(polygon_vertex_parameter_control_word(false),
dp.x, dp.y, dp.z,
dt.x, dt.y,
base_color,
offset_color);
writer.append<ta_vertex_parameter::polygon_type_3>() =
ta_vertex_parameter::polygon_type_3(polygon_vertex_parameter_control_word(true),
cp.x, cp.y, cp.z,
ct.x, ct.y,
base_color,
offset_color);
}
vec3 transform(vec3 v)
{
return {
v.x * 300 + 320,
v.y * 300 + 240,
v.z
};
}
void transfer_mesh(ta_parameter_writer& writer)
{
uint32_t control = para_control::list_type::translucent
| obj_control::texture
| (pcw_offset ? obj_control::offset : 0)
;
uint32_t tsp_instruction_word = 0
| tsp_instruction_word::src_alpha_instr::zero
| tsp_instruction_word::dst_alpha_instr::src_alpha
| tsp_instruction_word::texture_u_size::from_int(512)
| tsp_instruction_word::texture_v_size::from_int(512)
;
uint32_t texture_address = texture_memory_alloc.texture.start + font_base;
uint32_t texture_control_word = texture_control_word::pixel_format::bump_map
| texture_control_word::scan_order::non_twiddled
| texture_control_word::texture_address(texture_address / 8);
global_polygon_type_0(writer,
control,
tsp_instruction_word,
texture_control_word);
uint32_t base_color = 0;
uint32_t offset_color = 0
| (k1 << 24)
| (k2 << 16)
| (k3 << 8)
| (q << 0);
render_quad(writer,
transform(position[0]),
transform(position[1]),
transform(position[2]),
transform(position[3]),
texture[0],
texture[1],
texture[2],
texture[3],
base_color,
offset_color);
}
void opaque_string(ta_parameter_writer& writer,
int x, int y,
char * s, int length)
{
font_bitmap::transform_string(writer,
texture_memory_alloc.texture.start + 64,
8, 16, // texture
8, 16, // glyph
16 + x * 8, // position x
16 + y * 16, // position y
s, length,
para_control::list_type::opaque);
}
void render_k1k2k3q(ta_parameter_writer& writer)
{
char __attribute__((aligned(4))) s[64];
for (uint32_t i = 0; i < (sizeof (s)) / 4; i++)
reinterpret_cast<uint32_t *>(s)[i] = 0x20202020;
int offset;
offset = unparse_base10(s, k1, 7, ' ');
s[0] = 'k';
s[1] = '1';
s[2] = ':';
opaque_string(writer, 1, 1, s, offset);
offset = unparse_base10(s, k2, 7, ' ');
s[0] = 'k';
s[1] = '2';
s[2] = ':';
opaque_string(writer, 1, 2, s, offset);
offset = unparse_base10(s, k3, 7, ' ');
s[0] = 'k';
s[1] = '3';
s[2] = ':';
opaque_string(writer, 1, 3, s, offset);
offset = unparse_base10(s, q, 7, ' ');
s[0] = ' ';
s[1] = 'q';
s[2] = ':';
opaque_string(writer, 1, 4, s, offset);
offset = unparse_base10(&s[1], pcw_offset, 7, ' ');
s[0] = 'o';
s[1] = 'f';
s[2] = 'f';
s[3] = ':';
opaque_string(writer, 0, 5, s, offset + 1);
}
void transfer_scene(ta_parameter_writer& writer, const mat4x4& trans, int animation_tick)
{
// opaque list
if (1) {
render_k1k2k3q(writer);
writer.append<ta_global_parameter::end_of_list>() =
ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
}
// translucent list
if (1) {
transfer_mesh(writer);
writer.append<ta_global_parameter::end_of_list>() =
ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
}
}
void update_analog(mat4x4& screen)
{
int ra = ft0::data_transfer::digital_button::ra(data[0].digital_button) == 0;
int la = ft0::data_transfer::digital_button::la(data[0].digital_button) == 0;
int da = ft0::data_transfer::digital_button::da(data[0].digital_button) == 0;
int ua = ft0::data_transfer::digital_button::ua(data[0].digital_button) == 0;
int db_x = ft0::data_transfer::digital_button::x(data[0].digital_button) == 0;
int db_y = ft0::data_transfer::digital_button::y(data[0].digital_button) == 0;
int db_a = ft0::data_transfer::digital_button::a(data[0].digital_button) == 0;
int db_b = ft0::data_transfer::digital_button::b(data[0].digital_button) == 0;
int start = ft0::data_transfer::digital_button::start(data[0].digital_button) == 0;
static int last_start = 0;
if (db_x) {
k1 -= 1;
if (k1 < 0) k1 = 0;
}
if (db_y) {
k1 += 1;
if (k1 > 255) k1 = 255;
}
if (db_a) {
k2 -= 1;
if (k2 < 0) k2 = 0;
}
if (db_b) {
k2 += 1;
if (k2 > 255) k2 = 255;
}
if (da) {
k3 -= 1;
if (k3 < 0) k3 = 0;
}
if (ua) {
k3 += 1;
if (k3 > 255) k3 = 255;
}
if (la) {
q -= 1;
if (q < 0) q = 0;
}
if (ra) {
q += 1;
if (q > 255) q = 255;
}
if (start && (start != last_start)) {
pcw_offset = !pcw_offset;
}
last_start = start;
}
void transfer_ta_fifo_texture_memory_32byte(void * dst, void * src, int length)
{
assert((((int)dst) & 31) == 0);
assert((((int)length) & 31) == 0);
uint32_t out_addr = (uint32_t)dst;
sh7091.CCN.QACR0 = ((reinterpret_cast<uint32_t>(out_addr) >> 24) & 0b11100);
sh7091.CCN.QACR1 = ((reinterpret_cast<uint32_t>(out_addr) >> 24) & 0b11100);
volatile uint32_t * base = &store_queue[(out_addr & 0x03ffffe0) / 4];
uint32_t * src32 = reinterpret_cast<uint32_t *>(src);
length = (length + 31) & ~31; // round up to nearest multiple of 32
while (length > 0) {
base[0] = src32[0];
base[1] = src32[1];
base[2] = src32[2];
base[3] = src32[3];
base[4] = src32[4];
base[5] = src32[5];
base[6] = src32[6];
base[7] = src32[7];
asm volatile ("pref @%0"
: // output
: "r" (&base[0]) // input
: "memory");
length -= 32;
base += 8;
src32 += 8;
}
}
void transfer_font()
{
const uint8_t * src = reinterpret_cast<const uint8_t *>(&_binary_font_verite_8x16_verite_8x16_data_start);
const uint32_t texture_address = texture_memory_alloc.texture.start + 64;
font_bitmap::inflate(1, // pitch
8, // width
16, // height
texture_address,
8, // texture_width
16, // texture_height
src);
}
void transfer_bump_texture()
{
uint32_t offset = texture_memory_alloc.texture.start + font_base;
void * dst = reinterpret_cast<void *>(&ta_fifo_texture_memory[offset / 4]);
void * src = reinterpret_cast<void *>(&_binary_texture_bump_bump_data_start);
uint32_t size = reinterpret_cast<uint32_t>(&_binary_texture_bump_bump_data_size);
printf("src %x dst %x size %x\n", (uint32_t)src, (uint32_t)dst, (uint32_t)size);
transfer_ta_fifo_texture_memory_32byte(dst, src, size);
}
void transfer_textures()
{
system.LMMODE0 = 0; // 64-bit address space
system.LMMODE1 = 0; // 64-bit address space
transfer_font();
transfer_bump_texture();
}
uint8_t __attribute__((aligned(32))) ta_parameter_buf[1024 * 1024 * 3];
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();
transfer_textures();
palette_data<3>();
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;
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,
0xffffffff);
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;
system.IML6NRM = istnrm::end_of_render_tsp
| istnrm::v_blank_in
| istnrm::end_of_transferring_translucent_list;
while (1) {
maple::dma_wait_complete();
do_get_condition();
writer.offset = 0;
update_analog(screen_trans);
transfer_scene(writer, screen_trans * model_trans, animation_tick);
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;
}
}