Zack Buhman
bcaa9789cf
The previous texture_memory_alloc.hpp was written based on an incorrect understanding of the "32-bit" and "64-bit" texture memory address mapping. The primary motivation is to rearrange the texture memory address map so that "textures" (64-bit access) do not overlap with 32-bit accesses, such as REGION_BASE or PARAM_BASE.
188 lines
6.6 KiB
C++
188 lines
6.6 KiB
C++
#include <cstdint>
|
|
|
|
#include "align.hpp"
|
|
#include "holly/video_output.hpp"
|
|
|
|
#include "holly/texture_memory_alloc.hpp"
|
|
#include "holly/holly.hpp"
|
|
#include "holly/core.hpp"
|
|
#include "holly/core_bits.hpp"
|
|
#include "holly/ta_fifo_polygon_converter.hpp"
|
|
#include "holly/ta_parameter.hpp"
|
|
#include "holly/ta_global_parameter.hpp"
|
|
#include "holly/ta_vertex_parameter.hpp"
|
|
#include "holly/ta_bits.hpp"
|
|
#include "holly/isp_tsp.hpp"
|
|
#include "holly/region_array.hpp"
|
|
#include "holly/background.hpp"
|
|
#include "memorymap.hpp"
|
|
#include "twiddle.hpp"
|
|
|
|
#include "macaw.hpp"
|
|
|
|
struct vertex {
|
|
float x;
|
|
float y;
|
|
float z;
|
|
float u;
|
|
float v;
|
|
uint32_t color;
|
|
};
|
|
|
|
const struct vertex strip_vertices[4] = {
|
|
// [ position ] [ uv coordinates ] [color ]
|
|
{ -0.5f, 0.5f, 0.f, 0.f , 127.f/128.f, 0x00000000}, // the first two base colors in a
|
|
{ -0.5f, -0.5f, 0.f, 0.f , 0.f , 0x00000000}, // non-Gouraud triangle strip are ignored
|
|
{ 0.5f, 0.5f, 0.f, 127.f/128.f, 127.f/128.f, 0x00000000},
|
|
{ 0.5f, -0.5f, 0.f, 127.f/128.f, 0.f , 0x00000000},
|
|
};
|
|
constexpr uint32_t strip_length = (sizeof (strip_vertices)) / (sizeof (struct vertex));
|
|
|
|
static float theta = 0;
|
|
constexpr float half_degree = 0.01745329f / 2.f;
|
|
|
|
uint32_t transform(uint32_t * ta_parameter_buf,
|
|
const vertex * strip_vertices,
|
|
const uint32_t strip_length)
|
|
{
|
|
auto parameter = ta_parameter_writer(ta_parameter_buf);
|
|
const uint32_t parameter_control_word = para_control::para_type::polygon_or_modifier_volume
|
|
| para_control::list_type::opaque
|
|
| obj_control::col_type::packed_color
|
|
| obj_control::texture;
|
|
|
|
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::src_alpha_instr::one
|
|
| tsp_instruction_word::dst_alpha_instr::zero
|
|
| tsp_instruction_word::fog_control::no_fog
|
|
| tsp_instruction_word::texture_u_size::from_int(128)
|
|
| tsp_instruction_word::texture_v_size::from_int(128);
|
|
|
|
const uint32_t texture_address = texture_memory_alloc::texture.start;
|
|
const uint32_t texture_control_word = texture_control_word::pixel_format::_565
|
|
| texture_control_word::scan_order::twiddled
|
|
| texture_control_word::texture_address(texture_address / 8);
|
|
|
|
parameter.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, // data_size_for_sort_dma
|
|
0 // next_address_for_sort_dma
|
|
);
|
|
|
|
for (uint32_t i = 0; i < strip_length; i++) {
|
|
float x = strip_vertices[i].x;
|
|
float y = strip_vertices[i].y;
|
|
float z = strip_vertices[i].z;
|
|
float x1;
|
|
|
|
x1 = x * __builtin_cosf(theta) - z * __builtin_sinf(theta);
|
|
z = x * __builtin_sinf(theta) + z * __builtin_cosf(theta);
|
|
x = x1;
|
|
x *= 240.f;
|
|
y *= 240.f;
|
|
x += 320.f;
|
|
y += 240.f;
|
|
z = 1.f / (z + 10.f);
|
|
|
|
bool end_of_strip = i == strip_length - 1;
|
|
parameter.append<ta_vertex_parameter::polygon_type_3>() =
|
|
ta_vertex_parameter::polygon_type_3(polygon_vertex_parameter_control_word(end_of_strip),
|
|
x, y, z,
|
|
strip_vertices[i].u,
|
|
strip_vertices[i].v,
|
|
strip_vertices[i].color,
|
|
0 // offset_color
|
|
);
|
|
}
|
|
|
|
parameter.append<ta_global_parameter::end_of_list>() = ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
|
|
|
|
return parameter.offset;
|
|
}
|
|
|
|
void init_texture_memory(const struct opb_size& opb_size)
|
|
{
|
|
region_array2(640 / 32, // width
|
|
480 / 32, // height
|
|
opb_size
|
|
);
|
|
background_parameter(0xff220000);
|
|
}
|
|
|
|
void init_macaw_texture()
|
|
{
|
|
auto src = reinterpret_cast<const uint8_t *>(&_binary_macaw_data_start);
|
|
auto size = reinterpret_cast<const uint32_t>(&_binary_macaw_data_size);
|
|
auto texture = reinterpret_cast<volatile uint16_t *>(&texture_memory64[texture_memory_alloc::texture.start / 4]);
|
|
|
|
uint16_t temp[size / 3];
|
|
for (uint32_t px = 0; px < size / 3; px++) {
|
|
uint8_t r = src[px * 3 + 0];
|
|
uint8_t g = src[px * 3 + 1];
|
|
uint8_t b = src[px * 3 + 2];
|
|
|
|
uint16_t rgb565 = ((r / 8) << 11) | ((g / 4) << 5) | ((b / 8) << 0);
|
|
temp[px] = rgb565;
|
|
}
|
|
twiddle::texture(texture, temp, 128, 128);
|
|
}
|
|
|
|
uint32_t _ta_parameter_buf[((32 * (strip_length + 2)) + 32) / 4];
|
|
|
|
void main()
|
|
{
|
|
video_output::set_mode_vga();
|
|
init_macaw_texture();
|
|
|
|
// The address of `ta_parameter_buf` must be a multiple of 32 bytes.
|
|
// This is mandatory for ch2-dma to the ta fifo polygon converter.
|
|
uint32_t * ta_parameter_buf = align_32byte(_ta_parameter_buf);
|
|
|
|
constexpr uint32_t ta_alloc = 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::_16x4byte;
|
|
|
|
constexpr struct opb_size opb_size = { .opaque = 16 * 4
|
|
, .opaque_modifier = 0
|
|
, .translucent = 0
|
|
, .translucent_modifier = 0
|
|
, .punch_through = 0
|
|
};
|
|
|
|
holly.SOFTRESET = softreset::pipeline_soft_reset
|
|
| softreset::ta_soft_reset;
|
|
holly.SOFTRESET = 0;
|
|
|
|
core_init();
|
|
init_texture_memory(opb_size);
|
|
|
|
uint32_t frame_ix = 0;
|
|
|
|
while (true) {
|
|
ta_polygon_converter_init(opb_size.total(),
|
|
ta_alloc,
|
|
640 / 32,
|
|
480 / 32);
|
|
uint32_t ta_parameter_size = transform(ta_parameter_buf, strip_vertices, strip_length);
|
|
ta_polygon_converter_transfer(ta_parameter_buf, ta_parameter_size);
|
|
ta_wait_opaque_list();
|
|
|
|
core_start_render(frame_ix);
|
|
core_wait_end_of_render_video();
|
|
|
|
while (!spg_status::vsync(holly.SPG_STATUS));
|
|
core_flip(frame_ix);
|
|
while (spg_status::vsync(holly.SPG_STATUS));
|
|
|
|
theta += half_degree;
|
|
frame_ix = (frame_ix + 1) & 1;;
|
|
}
|
|
}
|