example: add strip_buffer

This commit is contained in:
Zack Buhman 2025-06-01 02:06:27 -05:00
parent 9dfc378831
commit 8bde5aaafa
4 changed files with 546 additions and 8 deletions

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@ -1192,3 +1192,23 @@ SCANNER_OBJ = \
example/scanner.elf: LDSCRIPT = $(LIB)/main.lds example/scanner.elf: LDSCRIPT = $(LIB)/main.lds
example/scanner.elf: $(START_OBJ) $(SCANNER_OBJ) example/scanner.elf: $(START_OBJ) $(SCANNER_OBJ)
STRIP_BUFFER_OBJ = \
example/strip_buffer.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 \
font/verite_8x16/verite_8x16.data.o \
font/font_bitmap.o \
$(LIBGCC)
example/strip_buffer.elf: LDSCRIPT = $(LIB)/main.lds
example/strip_buffer.elf: $(START_OBJ) $(STRIP_BUFFER_OBJ)

480
example/strip_buffer.cpp Normal file
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@ -0,0 +1,480 @@
#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_alloc6.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 "font/font_bitmap.hpp"
#include "font/verite_8x16/verite_8x16.data.h"
#include "palette.hpp"
#include "math/float_types.hpp"
#include "math/transform.hpp"
#include "interrupt.hpp"
#include "assert.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 next_frame = 0;
static volatile int framebuffer_ix = 0;
static volatile int next_frame_ix = 0;
static volatile int ta_ix = 0;
static inline void render()
{
int core_ix = !ta_ix;
uint32_t region_array_start = texture_memory_alloc.region_array[core_ix].start;
uint32_t isp_tsp_parameters_start = texture_memory_alloc.isp_tsp_parameters[core_ix].start;
uint32_t background_start = texture_memory_alloc.background[core_ix].start;
uint32_t background_offset = background_start - isp_tsp_parameters_start;
uint32_t bytes_per_pixel = 2;
holly.REGION_BASE = region_array_start;
holly.PARAM_BASE = isp_tsp_parameters_start;
holly.ISP_BACKGND_T
= isp_backgnd_t::tag_address(background_offset / 4)
| isp_backgnd_t::tag_offset(0)
| isp_backgnd_t::skip(1);
holly.ISP_BACKGND_D = _i(1.f/100000.f);
holly.FB_W_CTRL = fb_w_ctrl::fb_packmode::_565_rgb_16bit;
holly.FB_W_LINESTRIDE = (framebuffer_width * bytes_per_pixel) / 8;
holly.FB_R_CTRL
= fb_r_ctrl::vclk_div::pclk_vclk_2
| fb_r_ctrl::fb_strip_buf_en
| fb_r_ctrl::fb_stripsize(0x02) // 64 lines
| fb_r_ctrl::fb_depth::_565_rgb_16bit
| fb_r_ctrl::fb_enable;
holly.FB_R_SOF1 = texture_memory_alloc.framebuffer[0].start;
holly.FB_W_SOF1 = texture_memory_alloc.framebuffer[0].start;
holly.FB_R_SOF2 = texture_memory_alloc.framebuffer[1].start;
holly.FB_W_SOF2 = texture_memory_alloc.framebuffer[1].start;
holly.STARTRENDER = 1;
}
static inline void pump_events(uint32_t istnrm)
{
if (istnrm & istnrm::v_blank_in) {
system.ISTNRM = istnrm::v_blank_in;
next_frame = 1;
render();
}
if (istnrm & istnrm::end_of_render_tsp) {
system.ISTNRM = istnrm::end_of_render_tsp
| istnrm::end_of_render_isp
| istnrm::end_of_render_video;
}
if (istnrm & istnrm::end_of_transferring_opaque_list) {
system.ISTNRM = istnrm::end_of_transferring_opaque_list;
ta_ix = !ta_ix;
}
}
void vbr600()
{
uint32_t sr;
asm volatile ("stc sr,%0" : "=r" (sr));
sr |= sh::sr::imask(15);
asm volatile ("ldc %0,sr" : : "r" (sr));
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>(isterr);
if (isterr & 1) {
system.ISTERR = 1;
}
if (isterr & 2) {
system.ISTERR = 2;
}
/*
holly.SOFTRESET = softreset::pipeline_soft_reset
| softreset::ta_soft_reset;
holly.SOFTRESET = 0;
*/
}
pump_events(istnrm);
sr &= ~sh::sr::imask(15);
asm volatile ("ldc %0,sr" : : "r" (sr));
return;
}
serial::string("vbr600\n");
interrupt_exception();
}
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,
8, 16, // texture
8, 16, // glyph
16 + x * 8, // position x
16 + y * 16, // position y
s, length,
para_control::list_type::opaque);
}
static inline vec3 screen_transform(vec3 v)
{
float dim = 480 / 2; // * 2.0;
return {
v.x / (1.f * v.z) * dim + 640 / 2.0f,
v.y / (1.f * v.z) * dim + 480 / 2.0f,
1 / v.z,
};
}
void global_polygon_type_0(ta_parameter_writer& writer,
uint32_t para_control_obj_control
)
{
const uint32_t parameter_control_word = para_control::para_type::polygon_or_modifier_volume
| obj_control::col_type::floating_color
| obj_control::gouraud
| para_control_obj_control
;
const uint32_t isp_tsp_instruction_word = isp_tsp_instruction_word::depth_compare_mode::greater_or_equal
| isp_tsp_instruction_word::culling_mode::no_culling
| tsp_instruction_word::filter_mode::point_sampled
;
uint32_t tsp_instruction_word = tsp_instruction_word::fog_control::no_fog
| tsp_instruction_word::src_alpha_instr::one
| tsp_instruction_word::dst_alpha_instr::zero
| tsp_instruction_word::texture_shading_instruction::decal
;
uint32_t texture_control_word = 0;
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);
}
#define fsrra(n) (1.0f / (sqrt(n)))
static inline void render_quad(ta_parameter_writer& writer,
vec3 ap,
vec3 bp,
vec3 cp,
vec3 dp,
vec3 ac,
vec3 bc,
vec3 cc,
vec3 dc)
{
if (ap.z < 0 || bp.z < 0 || cp.z < 0 || dp.z < 0)
return;
writer.append<ta_vertex_parameter::polygon_type_1>() =
ta_vertex_parameter::polygon_type_1(polygon_vertex_parameter_control_word(false),
ap.x, ap.y, ap.z,
1, ac.r, ac.g, ac.b);
writer.append<ta_vertex_parameter::polygon_type_1>() =
ta_vertex_parameter::polygon_type_1(polygon_vertex_parameter_control_word(false),
bp.x, bp.y, bp.z,
1, bc.r, bc.g, bc.b);
writer.append<ta_vertex_parameter::polygon_type_1>() =
ta_vertex_parameter::polygon_type_1(polygon_vertex_parameter_control_word(false),
dp.x, dp.y, dp.z,
1, dc.r, dc.g, dc.b);
writer.append<ta_vertex_parameter::polygon_type_1>() =
ta_vertex_parameter::polygon_type_1(polygon_vertex_parameter_control_word(true),
cp.x, cp.y, cp.z,
1, cc.r, cc.g, cc.b);
}
void transfer_line(ta_parameter_writer& writer, vec3 p1, vec3 p2, vec3 color)
{
float dy = p2.y - p1.y;
float dx = p2.x - p1.x;
float d = fsrra(dx * dx + dy * dy) * 0.7f;
float dy1 = dy * d;
float dx1 = dx * d;
vec3 ap = { p1.x + dy1, p1.y + -dx1, p1.z }; // -> ^
vec3 bp = { p1.x + -dy1, p1.y + dx1, p1.z }; // <- v
vec3 cp = { p2.x + -dy1, p2.y + dx1, p2.z }; // <- v
vec3 dp = { p2.x + dy1, p2.y + -dx1, p2.z }; // -> ^
render_quad(writer, ap, bp, cp, dp, color, color, color, color);
}
void transfer_line2(ta_parameter_writer& writer, vec2 p1, vec2 p2, vec3 color)
{
transfer_line(writer, {p1.x, p1.y, 0.1}, {p2.x, p2.y, 0.1}, color);
}
static int tick = 0;
void transfer_scene(ta_parameter_writer& writer)
{
global_polygon_type_0(writer,
para_control::list_type::opaque);
transfer_line2(writer, { 1, 1}, {639, 1}, {1, 0, 0});
transfer_line2(writer, {639, 1}, {639, 479}, {1, 0, 0});
transfer_line2(writer, {639, 479}, { 1, 479}, {1, 0, 0});
transfer_line2(writer, { 1, 479}, { 1, 1}, {1, 0, 0});
vec3 a = {-128, -128, 0.1};
vec3 b = { 128, -128, 0.1};
vec3 c = { 128, 128, 0.1};
vec3 d = {-128, 128, 0.1};
mat4x4 r = translate((vec3){320, 240, 0}) * rotate_z(((float)tick) * 0.01f);
render_quad(writer,
r * a,
r * b,
r * c,
r * d,
{0, 1, 1},
{1, 0, 1},
{1, 1, 0},
{0, 0, 0});
opaque_string(writer,
0, 0,
(char *)"hello", 5);
writer.append<ta_global_parameter::end_of_list>() =
ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
}
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;
font_bitmap::inflate(1, // pitch
8, // width
16, // height
texture_address,
8, // texture_width
16, // texture_height
src);
}
uint8_t __attribute__((aligned(32))) ta_parameter_buf1[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);
holly.SOFTRESET = softreset::pipeline_soft_reset
| softreset::ta_soft_reset;
holly.SOFTRESET = 0;
core_init();
transfer_font();
palette_data<3>();
region_array_multipass(tile_width,
tile_height,
opb_size,
ta_cont_count,
texture_memory_alloc.region_array[0].start,
texture_memory_alloc.object_list[0].start);
region_array_multipass(tile_width,
tile_height,
opb_size,
ta_cont_count,
texture_memory_alloc.region_array[1].start,
texture_memory_alloc.object_list[1].start);
background_parameter2(texture_memory_alloc.background[0].start,
0xff202040);
background_parameter2(texture_memory_alloc.background[1].start,
0xff202040);
ta_parameter_writer op_writer = ta_parameter_writer(ta_parameter_buf1, (sizeof (ta_parameter_buf1)));
video_output::set_mode_vga();
op_writer.offset = 0;
transfer_scene(op_writer);
for (int i = 0; i < 2; i++) {
ta_polygon_converter_init2(texture_memory_alloc.isp_tsp_parameters[i].start,
texture_memory_alloc.isp_tsp_parameters[i].end,
texture_memory_alloc.object_list[i].start,
texture_memory_alloc.object_list[i].end,
opb_size[0].total(),
ta_alloc,
tile_width,
tile_height);
ta_polygon_converter_writeback(op_writer.buf, op_writer.offset);
ta_polygon_converter_transfer(op_writer.buf, op_writer.offset);
ta_wait_opaque_list();
}
interrupt_init();
system.IML6NRM = istnrm::end_of_render_tsp
| istnrm::v_blank_in
| istnrm::end_of_transferring_opaque_list;
do_get_condition();
while (1) {
maple::dma_wait_complete();
do_get_condition();
op_writer.offset = 0;
transfer_scene(op_writer);
ta_polygon_converter_init2(texture_memory_alloc.isp_tsp_parameters[ta_ix].start,
texture_memory_alloc.isp_tsp_parameters[ta_ix].end,
texture_memory_alloc.object_list[ta_ix].start,
texture_memory_alloc.object_list[ta_ix].end,
opb_size[0].total(),
ta_alloc,
tile_width,
tile_height);
ta_polygon_converter_writeback(op_writer.buf, op_writer.offset);
ta_polygon_converter_transfer(op_writer.buf, op_writer.offset);
while (next_frame == 0);
next_frame = 0;
tick += 1;
}
}

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@ -0,0 +1,29 @@
#pragma once
#include <cstdint>
#include <cstddef>
struct texture_memory_alloc__start_end {
uint32_t start;
uint32_t end;
};
struct texture_memory_alloc {
struct texture_memory_alloc__start_end isp_tsp_parameters[2];
struct texture_memory_alloc__start_end object_list[2];
struct texture_memory_alloc__start_end region_array[2];
struct texture_memory_alloc__start_end framebuffer[2];
struct texture_memory_alloc__start_end background[2];
struct texture_memory_alloc__start_end texture;
};
constexpr texture_memory_alloc texture_memory_alloc = {
// 32-bit addresses start end start end
.isp_tsp_parameters = {0x000000, 0x11bfe0, 0x400000, 0x51bfe0},
.object_list = {0x11c000, 0x166fe0, 0x51c000, 0x566fe0},
.region_array = {0x167000, 0x177000, 0x567000, 0x577000},
.framebuffer = {0x177000, 0x18b000, 0x577000, 0x58b000},
.background = {0x18b000, 0x18b020, 0x58b000, 0x58b020},
// 64-bit addresses
.texture = 0x316040,
};

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@ -1,5 +1,11 @@
import struct import struct
# make ./example/memory_map.bin
# ./tools/ftdi_transfer ./example/memory_map.bin
# ./tools/dump_texture_memory.sh
# sha256sum
# cf5070b1fdfa26ecb527c86afaf046553b09ad677a88ef569a2b802790ccde03
with open("texture_memory_write_64_read_32.bin", "rb") as f: with open("texture_memory_write_64_read_32.bin", "rb") as f:
buf = memoryview(f.read()) buf = memoryview(f.read())
@ -11,14 +17,17 @@ lookup = [
# print(f"{n:08x}") # print(f"{n:08x}")
allocations = { allocations = {
"isp_tsp_parameters" : (0x11_c000 , 32 ), "isp_tsp_parameters0" : (0x11_c000 , 32 ),
"object_list" : (0x09_6000 , 32 ), "isp_tsp_parameters1" : (0x11_c000 , 32 ),
"region_array" : (0x01_0000 , 0 ), "object_list0" : (0x04_b000 , 32 ),
"framebuffer0" : (0x09_6000 , 0 ), "object_list1" : (0x04_b000 , 32 ),
"framebuffer1" : (0x09_6000 , 0 ), "region_array0" : (0x01_0000 , 0 ),
"framebuffer2" : (0x09_6000 , 0 ), "region_array1" : (0x01_0000 , 0 ),
"framebuffer0" : (0x01_4000 , 0 ),
"framebuffer1" : (0x01_4000 , 0 ),
"background0" : (0x00_0040 , 32 ), "background0" : (0x00_0040 , 32 ),
"background1" : (0x00_0040 , 32 ), "background1" : (0x00_0040 , 32 ),