260 lines
8.6 KiB
C++
260 lines
8.6 KiB
C++
#include <cstdint>
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#include "align.hpp"
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#include "memorymap.hpp"
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#include "holly/holly.hpp"
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#include "holly/core.hpp"
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#include "holly/core_bits.hpp"
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#include "holly/video_output.hpp"
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#include "holly/ta_bits.hpp"
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#include "holly/ta_parameter.hpp"
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#include "holly/ta_global_parameter.hpp"
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#include "holly/ta_vertex_parameter.hpp"
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#include "holly/ta_fifo_polygon_converter.hpp"
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#include "holly/isp_tsp.hpp"
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#include "holly/texture_memory_alloc.hpp"
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#include "holly/background.hpp"
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#include "holly/region_array.hpp"
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#include "sh7091/store_queue.hpp"
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#include "sh7091/serial.hpp"
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struct vertex {
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float x;
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float y;
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float z;
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};
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// screen space coordinates
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const struct vertex triangles[1][3] = {
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{
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{ 200.f, 360.f, 0.1f },
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{ 200.f, 120.f, 0.1f },
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{ 440.f, 120.f, 0.1f },
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},
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};
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void transform()
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{
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/*
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* QACR0 [4:2]: External address bits [28:26] corresponding to SQ0
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* QACR1 [4:2]: External address bits [28:26] corresponding to SQ1
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*/
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/* PREF instruction:
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*
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* [31:26]: 111000 Store queue specification
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* [25:6] : Address External memory address bits [25:6]
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* [5] : 0/1 0: SQ0 specification
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* 1: SQ1 specification and external memory address bit [5]
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* [4:2] : No meaning in a prefetch
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* [1:0] : Fixed at 0
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*/
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/* Store queue writes:
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* [31:26]: 111000 Store queue specification
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* [25:6] : Don’t care Used for external memory transfer/access right
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* [5] : 0/1 0: SQ0 specification
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* 1: SQ1 specification
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* [4:2] : Specifies longword position in SQ0/SQ1
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* [1:0] : Fixed at 0
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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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| para_control::list_type::opaque
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| obj_control::col_type::packed_color;
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const uint32_t isp_tsp_instruction_word = isp_tsp_instruction_word::depth_compare_mode::greater
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| isp_tsp_instruction_word::culling_mode::no_culling;
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const uint32_t tsp_instruction_word = 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::fog_control::no_fog;
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const uint32_t texture_control_word = 0;
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constexpr uint32_t base_color = 0xfff0f000;
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*reinterpret_cast<ta_global_parameter::polygon_type_0 *>(store_queue) =
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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, // data_size_for_sort_dma
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0 // next_address_for_sort_dma
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);
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sq_transfer_32byte(ta_fifo_polygon_converter);
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constexpr uint32_t strip_length = 3;
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for (uint32_t i = 0; i < strip_length; i++) {
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float x = triangles[0][i].x;
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float y = triangles[0][i].y;
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float z = triangles[0][i].z;
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bool end_of_strip = i == strip_length - 1;
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*reinterpret_cast<ta_vertex_parameter::polygon_type_0 *>(store_queue) =
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ta_vertex_parameter::polygon_type_0(polygon_vertex_parameter_control_word(end_of_strip),
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x, y, z,
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base_color
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);
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sq_transfer_32byte(ta_fifo_polygon_converter);
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}
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*reinterpret_cast<ta_global_parameter::end_of_list *>(store_queue) =
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ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
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sq_transfer_32byte(ta_fifo_polygon_converter);
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}
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void transform2(ta_parameter_writer& parameter)
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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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| para_control::list_type::opaque
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| obj_control::col_type::packed_color;
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const uint32_t isp_tsp_instruction_word = isp_tsp_instruction_word::depth_compare_mode::greater
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| isp_tsp_instruction_word::culling_mode::no_culling;
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const uint32_t tsp_instruction_word = 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::fog_control::no_fog;
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const uint32_t texture_control_word = 0;
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constexpr uint32_t base_color = 0xff0f00ff;
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parameter.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, // data_size_for_sort_dma
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0 // next_address_for_sort_dma
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);
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constexpr uint32_t strip_length = 3;
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for (uint32_t i = 0; i < strip_length; i++) {
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float x = triangles[0][i].x;
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float y = triangles[0][i].y;
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float z = triangles[0][i].z;
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bool end_of_strip = i == strip_length - 1;
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parameter.append<ta_vertex_parameter::polygon_type_0>() =
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ta_vertex_parameter::polygon_type_0(polygon_vertex_parameter_control_word(end_of_strip),
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x, y, z,
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base_color
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);
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}
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parameter.append<ta_global_parameter::end_of_list>() =
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ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
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}
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void init_texture_memory(const struct opb_size& opb_size)
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{
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region_array2(640 / 32, // width
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480 / 32, // height
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opb_size
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);
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background_parameter(0xff220000);
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}
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uint32_t _ta_parameter_buf[((32 * (10 + 2)) + 32) / 4];
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void ta_copy(uint32_t * address, uint32_t size)
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{
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uint64_t * src = (uint64_t*)address;
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uint64_t dst[size / 4];
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//"Available only when PR=0 and SZ=1"
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uint32_t fpscr = (1 << 20);
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asm volatile
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("lds %0,fpscr;"
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:
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: "r" (fpscr)
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: "memory");
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for (uint32_t i = 0; i < (size / 8); i++) {
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//uint64_t * dst = (uint64_t*)ta_fifo_polygon_converter;
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asm volatile
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("fmov @%0,xd0;"
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"fmov xd0,@%1;"
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: // output
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: "r" (&src[i]), "r"(&dst[0]) // input
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: "memory");
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}
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uint32_t * src32 = (uint32_t *)&src[0];
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uint32_t * dst32 = (uint32_t *)&dst[0];
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for (uint32_t i = 0; i < (size / 4); i++) {
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serial::integer<uint32_t>(src32[i], ' ');
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serial::integer<uint32_t>(dst32[i]);
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}
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//serial::string("done\n");
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}
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void main()
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{
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video_output::set_mode_vga();
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constexpr uint32_t ta_alloc = 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::no_list
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| ta_alloc_ctrl::om_opb::no_list
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| ta_alloc_ctrl::o_opb::_16x4byte;
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constexpr struct opb_size opb_size = { .opaque = 16 * 4
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, .opaque_modifier = 0
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, .translucent = 0
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, .translucent_modifier = 0
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, .punch_through = 0
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};
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holly.SOFTRESET = softreset::pipeline_soft_reset
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| softreset::ta_soft_reset;
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holly.SOFTRESET = 0;
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core_init();
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init_texture_memory(opb_size);
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uint32_t frame_ix = 0;
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uint32_t * ta_parameter_buf = align_32byte(_ta_parameter_buf);
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auto parameter = ta_parameter_writer(ta_parameter_buf);
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while (true) {
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ta_polygon_converter_init(opb_size.total(),
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ta_alloc,
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640 / 32,
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480 / 32);
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transform2(parameter);
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serial::string("BCR1 ");
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serial::integer<uint32_t>(sh7091.BSC.BCR1);
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serial::string("BCR2 ");
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serial::integer<uint32_t>(sh7091.BSC.BCR2);
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serial::string("MCR ");
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serial::integer<uint32_t>(sh7091.BSC.MCR);
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//break;
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ta_copy(ta_parameter_buf, parameter.offset);
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break;
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ta_wait_opaque_list();
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serial::string("opaque\n");
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core_start_render(frame_ix);
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core_wait_end_of_render_video();
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while (!spg_status::vsync(holly.SPG_STATUS));
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core_flip(frame_ix);
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while (spg_status::vsync(holly.SPG_STATUS));
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frame_ix = (frame_ix + 1) & 1;
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if (frame_ix > 10)
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break;
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}
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}
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