953 lines
28 KiB
C++
953 lines
28 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_alloc7.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/float_types.hpp"
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#include "math/transform.hpp"
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#include "interrupt.hpp"
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#include "assert.h"
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#include "texture/game_of_life/dead.data.h"
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#include "texture/game_of_life/live1.data.h"
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#include "texture/game_of_life/live2.data.h"
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#include "texture/game_of_life/live3.data.h"
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#include "texture/game_of_life/live4.data.h"
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const int max_knot_segments = 32;
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const int max_knot_rings = 256;
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int knot_segments = 32;
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int knot_rings = 256;
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//int knot_rings = 32;
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vec3 _knot_center[max_knot_rings];
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vec3 _knot_ring[max_knot_rings][max_knot_segments];
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//vec3 t_knot_center[max_knot_rings];
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vec3 t_knot_ring[max_knot_rings][max_knot_segments];
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static inline vec3 knot(const float t)
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{
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float x = sin(t) + 2 * sin(2 * t);
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float y = cos(t) - 2 * cos(2 * t);
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float z = -sin(3 * t);
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return {x, y, z};
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}
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static inline vec3 rodrigues_rotation(const vec3 v, const vec3 k, const float t)
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{
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return v * cos(t) + cross(k, v) * sin(t) + k * dot(k, v) * (1 - cos(t));
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}
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static inline void radial_segments(const vec3 a,
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const vec3 n0,
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const vec3 n,
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const int segments,
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vec3 * radial_surface)
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{
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for (int i = 0; i < segments; i++) {
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float t = ((float)i / (float)segments) * 2.f * pi;
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vec3 rn = rodrigues_rotation(n, n0, t);
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rn = normalize(rn);
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radial_surface[i] = a + rn * 0.6f;
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}
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}
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static inline vec3 knot_center(const float i, const float rings)
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{
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float t = (i / rings) * 2.f * pi;
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vec3 center = knot(t);
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return center;
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}
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void knot_edges(const int rings, const int segments)
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{
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for (int i = 0; i < rings; i++) {
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vec3 center = knot_center(i, rings);
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_knot_center[i] = center;
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}
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for (int i = 0; i < rings; i++) {
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int ip = (i + 1) & (rings - 1);
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int im = (i - 1) & (rings - 1);
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const vec3& a = _knot_center[i];
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const vec3& b = _knot_center[ip];
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const vec3& c = _knot_center[im];
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vec3 n0 = ((b - a) + (a - c)) * 0.5f;
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n0 = normalize(n0);
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vec3 n = cross(n0, -a);
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n = normalize(n);
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radial_segments(a, n0, n, segments, &_knot_ring[i][0]);
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}
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}
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struct grid {
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int width;
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int height;
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int generation;
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int * data[2];
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};
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static inline int grid_get(grid const * const grid, int x, int y)
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{
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x = x & (grid->width - 1);
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y = y & (grid->height - 1);
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int gen = grid->generation & 1;
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return grid->data[gen][y * grid->width + x];
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}
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static inline void grid_put_p(grid * const grid, int x, int y, int value)
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{
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x = x & (grid->width - 1);
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y = y & (grid->height - 1);
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int gen = grid->generation & 1;
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grid->data[gen][y * grid->width + x] = value;
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}
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static inline void grid_put(grid * const grid, int x, int y, int value)
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{
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x = x & (grid->width - 1);
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y = y & (grid->height - 1);
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int gen = !(grid->generation & 1);
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grid->data[gen][y * grid->width + x] = value;
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}
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static inline int count_neighbors(grid const * const grid, int x, int y)
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{
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int count = 0;
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count += grid_get(grid, x - 1, y - 1) > 0;
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count += grid_get(grid, x - 0, y - 1) > 0;
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count += grid_get(grid, x + 1, y - 1) > 0;
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count += grid_get(grid, x - 1, y - 0) > 0;
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//count += grid_get(grid, x - 0, y - 0) > 0;
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count += grid_get(grid, x + 1, y - 0) > 0;
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count += grid_get(grid, x - 1, y + 1) > 0;
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count += grid_get(grid, x - 0, y + 1) > 0;
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count += grid_get(grid, x + 1, y + 1) > 0;
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return count;
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}
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static inline void apply_rule(grid * grid, int x, int y)
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{
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int live = grid_get(grid, x, y);
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int count = count_neighbors(grid, x, y);
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if (live < 0) {
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// do nothing
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} else if (live > 0) {
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if (count < 2)
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live = 0;
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else if (count > 3)
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live = 0;
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else if (live < 4)
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live += 1;
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} else { // live == 0
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if (count == 3)
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live = 1;
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}
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grid_put(grid, x, y, live);
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}
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void grid_generation(grid * grid)
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{
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for (int y = 0; y < grid->height; y++) {
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for (int x = 0; x < grid->width; x++) {
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apply_rule(grid, x, y);
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}
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}
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grid->generation += 1;
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}
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void seed_grid(grid * grid, int xo, int yo)
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{
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static const uint8_t seed[] = {
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0, 1, 0,
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1, 1, 0,
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0, 1, 1,
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};
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const int seed_width = 3;
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const int seed_height = 3;
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for (int y = 0; y < grid->height; y++) {
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for (int x = 0; x < grid->width; x++) {
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if (y < seed_height && x < seed_width) {
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grid_put(grid, xo + x, yo + y, seed[y * seed_width + x]);
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}
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}
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}
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}
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// cell points to next cell
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struct cell {
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int x;
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int y;
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};
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cell snake_unpack_cell(int a)
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{
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assert(a < 0);
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int x = ((uint32_t)a >> 0) & 0xff;
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int y = ((uint32_t)a >> 8) & 0xff;
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return {x, y};
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}
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int snake_pack_cell(cell c)
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{
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uint32_t v = (1 << 31)
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| (((uint32_t)c.x & 0xff) << 0)
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| (((uint32_t)c.y & 0xff) << 8);
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return v;
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}
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enum direction : int {
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UP,
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DOWN,
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LEFT,
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RIGHT
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};
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struct snake {
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cell head;
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cell tail;
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enum direction direction;
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};
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static inline cell move(cell p, int d)
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{
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switch (d) {
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case UP: return {p.x, p.y - 1};
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case DOWN: return {p.x, p.y + 1};
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case LEFT: return {p.x - 1, p.y};
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case RIGHT: return {p.x + 1, p.y};
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}
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assert(false);
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}
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void snake_move(grid * grid, snake * snake, bool force_grow)
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{
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cell head = move(snake->head, snake->direction);
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int live = grid_get(grid, head.x, head.y);
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grid_put_p(grid, head.x, head.y, -1);
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grid_put_p(grid, snake->head.x, snake->head.y,
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snake_pack_cell(head));
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snake->head.x = head.x;
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snake->head.y = head.y;
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int grow = live > 0 || force_grow;
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if (!grow) {
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cell tail = snake_unpack_cell(grid_get(grid, snake->tail.x, snake->tail.y));
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grid_put_p(grid, snake->tail.x, snake->tail.y, 0);
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snake->tail.x = tail.x;
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snake->tail.y = tail.y;
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}
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}
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void snake_init(grid * grid, snake * snake, int x, int y)
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{
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snake->head = {x - 1, y};
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snake->tail = {x - 1, y};
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snake->direction = RIGHT;
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snake_move(grid, snake, true);
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}
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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::_32x4byte
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| ta_alloc_ctrl::om_opb::no_list
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| ta_alloc_ctrl::o_opb::no_list
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;
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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 = 0,
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.opaque_modifier = 0,
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.translucent = 32 * 4,
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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_translucent_list) {
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system.ISTNRM = istnrm::end_of_transferring_translucent_list;
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core_in_use = 1;
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holly.FB_W_SOF1 = texture_memory_alloc.framebuffer[framebuffer_ix].start;
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holly.STARTRENDER = 1;
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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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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>(isterr);
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if (isterr & 1) {
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system.ISTERR = 1;
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}
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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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)
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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_or_equal
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| isp_tsp_instruction_word::culling_mode::no_culling
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;
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uint32_t tsp_instruction_word = tsp_instruction_word::fog_control::no_fog
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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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| tsp_instruction_word::texture_shading_instruction::decal
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;
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uint32_t texture_control_word = 0;
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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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void global_polygon_type_0_packed(ta_parameter_writer& writer,
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uint32_t para_control_obj_control,
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int ix
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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::packed_color
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| obj_control::texture
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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_or_equal
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| isp_tsp_instruction_word::culling_mode::no_culling
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;
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uint32_t tsp_instruction_word = tsp_instruction_word::fog_control::no_fog
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| tsp_instruction_word::src_alpha_instr::src_alpha
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| tsp_instruction_word::dst_alpha_instr::inverse_src_alpha
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| tsp_instruction_word::texture_shading_instruction::decal
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| tsp_instruction_word::texture_u_size::from_int(32)
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| tsp_instruction_word::texture_v_size::from_int(32)
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| tsp_instruction_word::filter_mode::bilinear_filter
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;
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uint32_t texture_address = texture_memory_alloc.texture.start + (32 * 32 * 2) * ix;
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uint32_t texture_control_word = texture_control_word::pixel_format::_1555
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| texture_control_word::scan_order::twiddled
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| texture_control_word::texture_address(texture_address / 8)
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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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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);
|
|
}
|
|
|
|
static inline void render_quad2(ta_parameter_writer& writer,
|
|
vec3 ap,
|
|
vec3 bp,
|
|
vec3 cp,
|
|
vec3 dp)
|
|
{
|
|
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,
|
|
0, 0,
|
|
0, 0);
|
|
|
|
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,
|
|
0, 1,
|
|
0, 0);
|
|
|
|
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,
|
|
1, 0,
|
|
0, 0);
|
|
|
|
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,
|
|
1, 1,
|
|
0, 0);
|
|
}
|
|
|
|
static inline vec3 screen_transform(vec3 v)
|
|
{
|
|
float dim = 480 / 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,
|
|
};
|
|
}
|
|
|
|
static int last_value = -1;
|
|
|
|
static inline void transfer_knot_face(ta_parameter_writer& writer, const grid * grid, int r0, int r1, int s0, int s1)
|
|
{
|
|
// x, y
|
|
int value = grid_get(grid, r0, s0);
|
|
if (value > 0)
|
|
value = 0;
|
|
if (value < 0)
|
|
value = 1;
|
|
|
|
if (last_value != value) {
|
|
global_polygon_type_0_packed(writer,
|
|
para_control::list_type::translucent,
|
|
value);
|
|
last_value = value;
|
|
}
|
|
|
|
render_quad2(writer,
|
|
t_knot_ring[r0][s0],
|
|
t_knot_ring[r0][s1],
|
|
t_knot_ring[r1][s1],
|
|
t_knot_ring[r1][s0]);
|
|
}
|
|
|
|
static inline void transfer_knot_inner(ta_parameter_writer& writer, const grid * grid, int r0, int r1)
|
|
{
|
|
for (int s0 = 0; s0 < knot_segments - 1; s0++) {
|
|
int s1 = s0 + 1;
|
|
transfer_knot_face(writer, grid, r0, r1, s0, s1);
|
|
}
|
|
transfer_knot_face(writer, grid, r0, r1, knot_segments - 1, 0);
|
|
}
|
|
|
|
void transfer_knot(ta_parameter_writer& writer, mat4x4& trans, const grid * grid)
|
|
{
|
|
for (int i = 0; i < knot_rings; i++) {
|
|
//t_knot_center[i] = screen_transform(trans * _knot_center[i]);
|
|
for (int j = 0; j < knot_segments; j++) {
|
|
t_knot_ring[i][j] = screen_transform(trans * _knot_ring[i][j]);
|
|
}
|
|
}
|
|
|
|
for (int r0 = 0; r0 < knot_rings - 1; r0++) {
|
|
int r1 = r0 + 1;
|
|
transfer_knot_inner(writer, grid, r0, r1);
|
|
}
|
|
transfer_knot_inner(writer, grid, knot_rings - 1, 0);
|
|
}
|
|
|
|
void transfer_grid(ta_parameter_writer& writer, const grid * grid)
|
|
{
|
|
float dim = 10;
|
|
|
|
for (int y = 0; y < grid->height; y++) {
|
|
for (int x = 0; x < grid->width; x++) {
|
|
int value = grid_get(grid, x, y);
|
|
if (value == 0)
|
|
continue;
|
|
|
|
float fx = x;
|
|
float fx1 = x + 1;
|
|
float fy = y;
|
|
float fy1 = y + 1;
|
|
|
|
vec3 a = {dim * fx , dim * fy , 0.001f};
|
|
vec3 b = {dim * fx1, dim * fy , 0.001f};
|
|
vec3 c = {dim * fx1, dim * fy1, 0.001f};
|
|
vec3 d = {dim * fx , dim * fy1, 0.001f};
|
|
|
|
mat4x4 r = translate((vec3){20, 20, 0});
|
|
vec3 color;
|
|
if (value > 0)
|
|
color = {1, 1, 1};
|
|
else {
|
|
color = {0, 0, 1};
|
|
}
|
|
render_quad(writer,
|
|
r * a,
|
|
r * b,
|
|
r * c,
|
|
r * d,
|
|
color,
|
|
color,
|
|
color,
|
|
color);
|
|
}
|
|
}
|
|
}
|
|
|
|
void transfer_scene(ta_parameter_writer& writer, grid * grid, mat4x4& trans)
|
|
{
|
|
global_polygon_type_0(writer,
|
|
para_control::list_type::translucent);
|
|
transfer_grid(writer, grid);
|
|
|
|
last_value = -1;
|
|
transfer_knot(writer, trans, grid);
|
|
|
|
writer.append<ta_global_parameter::end_of_list>() =
|
|
ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
|
|
}
|
|
|
|
void transfer_ta_fifo_texture_memory_32byte(void * dst, const 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];
|
|
const uint32_t * src32 = reinterpret_cast<const 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_texture()
|
|
{
|
|
const void * start[5] = {
|
|
(void *)&_binary_texture_game_of_life_dead_data_start,
|
|
(void *)&_binary_texture_game_of_life_live1_data_start,
|
|
(void *)&_binary_texture_game_of_life_live2_data_start,
|
|
(void *)&_binary_texture_game_of_life_live3_data_start,
|
|
(void *)&_binary_texture_game_of_life_live4_data_start,
|
|
};
|
|
|
|
for (uint32_t i = 0; i < (sizeof (start)) / (sizeof (start[0])); i++) {
|
|
uint32_t offset = texture_memory_alloc.texture.start + (32 * 32 * 2) * i;
|
|
void * dst = reinterpret_cast<void *>(&ta_fifo_texture_memory[offset / 4]);
|
|
const void * src = start[i];
|
|
uint32_t size = 32 * 32 * 2;
|
|
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_texture();
|
|
}
|
|
|
|
static inline mat4x4 update_analog(const mat4x4& screen_trans)
|
|
{
|
|
const float l_ = static_cast<float>(data[0].analog_coordinate_axis[0]) * (1.f / 255.f);
|
|
const float r_ = static_cast<float>(data[0].analog_coordinate_axis[1]) * (1.f / 255.f);
|
|
|
|
const float x_ = static_cast<float>(data[0].analog_coordinate_axis[2] - 0x80) / 127.f;
|
|
const float y_ = static_cast<float>(data[0].analog_coordinate_axis[3] - 0x80) / 127.f;
|
|
float x = 0.05f * -x_;
|
|
float y = 0.05f * y_;
|
|
|
|
float z = 1.0 + (-0.01f * r_ + 0.01f * l_);
|
|
|
|
mat4x4 s = scale((vec3){z, z, z});
|
|
mat4x4 ry = rotate_x(x);
|
|
mat4x4 rz = rotate_z(y);
|
|
|
|
return screen_trans * s * ry * rz;
|
|
}
|
|
|
|
static inline void update_digital(snake * snake)
|
|
{
|
|
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;
|
|
|
|
if (ra) {
|
|
snake->direction = RIGHT;
|
|
}
|
|
if (la) {
|
|
snake->direction = LEFT;
|
|
}
|
|
if (ua) {
|
|
snake->direction = UP;
|
|
}
|
|
if (da) {
|
|
snake->direction = DOWN;
|
|
}
|
|
}
|
|
|
|
static inline vec3 lerp(vec3 a, vec3 b, float t)
|
|
{
|
|
return a + (b - a) * t;
|
|
}
|
|
|
|
uint8_t __attribute__((aligned(32))) ta_parameter_buf[1024 * 1024 * 2];
|
|
|
|
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();
|
|
transfer_textures();
|
|
|
|
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_translucent_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,
|
|
0xff000000);
|
|
|
|
video_output::set_mode_vga();
|
|
|
|
ta_parameter_writer writer = ta_parameter_writer(ta_parameter_buf, (sizeof (ta_parameter_buf)));
|
|
|
|
{
|
|
uint32_t region_array_start = texture_memory_alloc.region_array.start;
|
|
uint32_t isp_tsp_parameters_start = texture_memory_alloc.isp_tsp_parameters.start;
|
|
uint32_t background_start = texture_memory_alloc.background[0].start;
|
|
|
|
holly.REGION_BASE = region_array_start;
|
|
holly.PARAM_BASE = isp_tsp_parameters_start;
|
|
|
|
uint32_t background_offset = background_start - 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_dither
|
|
| fb_w_ctrl::fb_packmode::_565_rgb_16bit;
|
|
uint32_t bytes_per_pixel = 2;
|
|
holly.FB_W_LINESTRIDE = (framebuffer_width * bytes_per_pixel) / 8;
|
|
}
|
|
|
|
const int max_width = max_knot_rings;
|
|
const int max_height = max_knot_segments;
|
|
static int grid_a[max_width * max_height] = {};
|
|
static int grid_b[max_width * max_height] = {};
|
|
grid grid = {
|
|
.width = knot_rings,
|
|
.height = knot_segments,
|
|
.generation = 1,
|
|
.data = {grid_a, grid_b},
|
|
};
|
|
for (int i = 0; i < 8; i++) {
|
|
seed_grid(&grid, 32 * i, 0);
|
|
}
|
|
snake snake;
|
|
grid.generation = 0;
|
|
snake_init(&grid, &snake, 5, 5);
|
|
|
|
int tick = 0;
|
|
|
|
mat4x4 screen_trans = {
|
|
1, 0, 0, 0,
|
|
0, 0, -1, 0,
|
|
0, 1, 0, 0,
|
|
0, 0, 0, 1,
|
|
};
|
|
|
|
knot_edges(knot_rings, knot_segments);
|
|
|
|
do_get_condition();
|
|
while (1) {
|
|
maple::dma_wait_complete();
|
|
do_get_condition();
|
|
//screen_trans = update_analog(screen_trans);
|
|
update_digital(&snake);
|
|
|
|
constexpr int ticks_per_animation_frame = 16;
|
|
|
|
if ((tick & (ticks_per_animation_frame - 1)) == 0) {
|
|
grid_generation(&grid);
|
|
snake_move(&grid, &snake, false);
|
|
}
|
|
|
|
/*
|
|
constexpr float tick_div = 1.0f / (float)ticks_per_animation_frame;
|
|
int anim_tick = -tick;
|
|
int anim_frame = anim_tick / ticks_per_animation_frame;
|
|
float t = (anim_tick - (anim_frame * ticks_per_animation_frame)) * tick_div;
|
|
int eye0 = (anim_frame + 0) & (knot_rings - 1);
|
|
int eye1 = (anim_frame + 1) & (knot_rings - 1);
|
|
int center0 = (anim_frame + 1) & (knot_rings - 1);
|
|
int center1 = (anim_frame + 2) & (knot_rings - 1);
|
|
|
|
vec3 eye = lerp(_knot_center[eye0], _knot_center[eye1], t);
|
|
vec3 center = lerp(_knot_center[center0], _knot_center[center1], t);
|
|
vec3 up = lerp(_knot_ring[eye0][0], _knot_ring[eye1][0], t);
|
|
*/
|
|
|
|
int ex = (snake.head.x - 10) & (grid.width - 1);
|
|
int cx = (snake.head.x + 0) & (grid.width - 1);
|
|
int y = (snake.head.y) & (grid.height - 1);
|
|
|
|
vec3 up = -_knot_ring[cx][snake.head.y];
|
|
vec3 eye = _knot_center[ex];
|
|
vec3 center = -_knot_center[cx];
|
|
|
|
screen_trans = look_at(eye, center, up);
|
|
|
|
writer.offset = 0;
|
|
transfer_scene(writer, &grid, screen_trans);
|
|
|
|
tick += 1;
|
|
if ((tick & 3) == 0) {
|
|
//grid_generation(&grid);
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|