281 lines
8.7 KiB
C++
281 lines
8.7 KiB
C++
#include "scad_format.h"
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#include <cstdint>
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#include <cstdlib>
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#include <cstring>
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#include <fstream>
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#include <iostream>
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#include <memory>
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#include <vector>
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#include "absl/status/status.h"
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#include "app/core/constants.h"
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#include "app/gfx/snes_tile.h"
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namespace yaze {
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namespace app {
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namespace gfx {
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void FindMetastamp() {
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int matching_position = -1;
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bool matched = false;
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Bytes cgx_rom;
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Bytes raw_data_;
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for (int i = 0;
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i < cgx_rom.size() - sizeof(kMatchedBytes) - kOffsetFromMatchedBytesEnd;
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i++) {
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raw_data_.push_back(cgx_rom[i]);
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bool is_match = std::equal(std::begin(kMatchedBytes),
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std::end(kMatchedBytes), &cgx_rom[i]);
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if (is_match) {
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matching_position = i;
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matched = true;
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break;
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}
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}
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if (matched) {
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int bpp_marker_position =
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matching_position + sizeof(kMatchedBytes) + kOffsetFromMatchedBytesEnd;
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int bpp_marker = cgx_rom[bpp_marker_position];
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std::string bpp_type = (bpp_marker == 0x31) ? "8bpp" : "4bpp";
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}
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}
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absl::Status LoadCgx(uint8_t bpp, std::string_view filename,
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std::vector<uint8_t>& cgx_data,
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std::vector<uint8_t>& cgx_loaded,
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std::vector<uint8_t>& cgx_header) {
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std::ifstream file(filename.data(), std::ios::binary);
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if (!file.is_open()) {
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return absl::NotFoundError("CGX file not found.");
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}
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std::vector<uint8_t> file_content((std::istreambuf_iterator<char>(file)),
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std::istreambuf_iterator<char>());
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cgx_data =
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std::vector<uint8_t>(file_content.begin(), file_content.end() - 0x500);
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file.seekg(cgx_data.size() + 0x100);
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cgx_header = std::vector<uint8_t>((std::istreambuf_iterator<char>(file)),
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std::istreambuf_iterator<char>());
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file.close();
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if (bpp > 8) {
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cgx_loaded = gfx::Bpp8SnesToIndexed(cgx_data, 40);
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return absl::OkStatus();
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}
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cgx_loaded = gfx::Bpp8SnesToIndexed(cgx_data, bpp);
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return absl::OkStatus();
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}
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absl::Status LoadScr(std::string_view filename, uint8_t input_value,
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std::vector<uint8_t>& map_data) {
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std::ifstream file(filename.data(), std::ios::binary);
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if (!file.is_open()) {
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return absl::NotFoundError("SCR/PNL/MAP file not found.");
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}
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// Check if file extension is PNL
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bool pnl = false;
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if (filename.find("PNL") != std::string::npos) {
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std::vector<uint8_t> scr_data;
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map_data.resize(0x8000);
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scr_data.resize(0x8000);
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// Read from file for 0x8000 bytes
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std::vector<uint8_t> file_content((std::istreambuf_iterator<char>(file)),
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std::istreambuf_iterator<char>());
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scr_data = std::vector<uint8_t>(file_content.begin(), file_content.end());
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int md = 0x100;
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for (int i = input_value * 0x400; i < 0x1000 + input_value * 0x400;
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i += 2) {
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auto b1_pos = (i - (input_value * 0x400));
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map_data[b1_pos] = gfx::TileInfoToShort(
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gfx::GetTilesInfo((ushort)scr_data[md + (i * 2)]));
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auto b2_pos = (i - (input_value * 0x400) + 1);
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map_data[b2_pos] = gfx::TileInfoToShort(
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gfx::GetTilesInfo((ushort)scr_data[md + (i * 2) + 2]));
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}
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// 0x900
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} else {
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int offset = 0;
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std::vector<uint8_t> scr_data;
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map_data.resize(0x2000);
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scr_data.resize(0x2000);
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// read from file for 0x2000 bytes
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std::vector<uint8_t> file_content((std::istreambuf_iterator<char>(file)),
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std::istreambuf_iterator<char>());
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scr_data = std::vector<uint8_t>(file_content.begin(), file_content.end());
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for (int i = 0; i < 0x1000 - offset; i++) {
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map_data[i] = gfx::TileInfoToShort(
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gfx::GetTilesInfo((ushort)scr_data[((i + offset) * 2)]));
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}
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}
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return absl::OkStatus();
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}
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absl::Status DrawScrWithCgx(uint8_t bpp, std::vector<uint8_t>& map_data,
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std::vector<uint8_t>& map_bitmap_data,
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std::vector<uint8_t>& cgx_loaded) {
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const std::vector<uint16_t> dimensions = {0x000, 0x400, 0x800, 0xC00};
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uint8_t p = 0;
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for (const auto each_dimension : dimensions) {
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p = each_dimension;
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// for each tile on the tile buffer
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for (int i = 0; i < 0x400; i++) {
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if (map_data[i + p] != 0xFFFF) {
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auto t = gfx::GetTilesInfo(map_data[i + p]);
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for (auto yl = 0; yl < 8; yl++) {
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for (auto xl = 0; xl < 8; xl++) {
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int mx = xl * (1 - t.horizontal_mirror_) +
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(7 - xl) * (t.horizontal_mirror_);
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int my =
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yl * (1 - t.vertical_mirror_) + (7 - yl) * (t.vertical_mirror_);
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int ty = (t.id_ / 16) * 1024;
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int tx = (t.id_ % 16) * 8;
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auto pixel = cgx_loaded[(tx + ty) + (yl * 128) + xl];
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int index = (((i % 32) * 8) + ((i / 32) * 2048) + mx + (my * 256));
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if (bpp != 8) {
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map_bitmap_data[index] =
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(uchar)((pixel & 0xFF) + t.palette_ * 16);
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} else {
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map_bitmap_data[index] = (uchar)(pixel & 0xFF);
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}
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}
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}
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}
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}
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}
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return absl::OkStatus();
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}
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std::vector<SDL_Color> DecodeColFile(const std::string_view filename) {
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std::vector<SDL_Color> decoded_col;
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std::ifstream file(filename.data(), std::ios::binary | std::ios::ate);
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if (!file.is_open()) {
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return decoded_col; // Return an empty vector if the file couldn't be
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// opened.
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}
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std::streamsize size = file.tellg();
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file.seekg(0, std::ios::beg);
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std::vector<char> buffer(size);
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if (file.read(buffer.data(), size)) {
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buffer.resize(size - 0x200);
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int k = 0;
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for (size_t i = 0; i < buffer.size() / 2; i++) {
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uint16_t current_color = static_cast<unsigned char>(buffer[k]) |
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(static_cast<unsigned char>(buffer[k + 1]) << 8);
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SDL_Color color;
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color.r = (current_color & 31) << 3;
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color.g = ((current_color >> 5) & 31) << 3;
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color.b = ((current_color >> 10) & 31) << 3;
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color.a = (i & 0xF) == 0 ? 0 : 255;
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decoded_col.push_back(color);
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k += 2;
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}
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}
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return decoded_col;
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}
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absl::Status DecodeObjFile(
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std::string_view filename, std::vector<uint8_t>& obj_data,
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std::vector<uint8_t> actual_obj_data,
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std::unordered_map<std::string, std::vector<uint8_t>> decoded_obj,
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std::vector<uint8_t>& decoded_extra_obj, int& obj_loaded) {
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std::vector<uint8_t> header_obj;
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int obj_range;
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int expected_cut;
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if (obj_loaded == 0) {
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obj_range = 0x180;
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expected_cut = 0x500;
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} else {
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obj_range = 0x300;
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expected_cut = 0x900;
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}
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std::ifstream file(filename.data(), std::ios::binary);
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if (!file.is_open()) {
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return absl::NotFoundError("OBJ file not found.");
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}
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std::vector<uint8_t> file_content((std::istreambuf_iterator<char>(file)),
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std::istreambuf_iterator<char>());
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obj_data = file_content;
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file.close();
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int cut = obj_data.size() & 0x0FFF;
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actual_obj_data =
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std::vector<uint8_t>(obj_data.begin(), obj_data.end() - cut);
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decoded_extra_obj =
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std::vector<uint8_t>(obj_data.begin() + actual_obj_data.size(),
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obj_data.begin() + actual_obj_data.size() + 0x100);
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header_obj = std::vector<uint8_t>(
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actual_obj_data.begin() + actual_obj_data.size(), actual_obj_data.end());
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if (cut > expected_cut) {
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std::vector<uint8_t> scad_data;
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int j = 0;
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int k = (obj_loaded == 0) ? 63 : 127;
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for (size_t i = 0; i < (actual_obj_data.size() / 6); i++) {
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std::vector<uint8_t> data = {
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actual_obj_data[k * 6 + 0 + j], // display
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actual_obj_data[k * 6 + 1 + j], // unknown
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actual_obj_data[k * 6 + 2 + j], // y-disp
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actual_obj_data[k * 6 + 3 + j], // x-disp
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actual_obj_data[k * 6 + 5 + j], // props
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actual_obj_data[k * 6 + 4 + j] // tile
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};
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scad_data.insert(scad_data.end(), data.begin(), data.end());
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k = k - 1;
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if (k == -1) {
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k = (obj_loaded == 0) ? 63 : 127;
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j = j + ((k + 1) * 6);
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}
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}
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int extra_data_range = 0x400 * (obj_loaded + 1) + 0x100;
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for (int i = 0; i < extra_data_range; i++) {
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scad_data.push_back(header_obj[i]);
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}
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obj_data = scad_data;
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actual_obj_data =
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std::vector<uint8_t>(obj_data.begin(), obj_data.end() - cut);
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}
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decoded_obj.clear();
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for (int k = 0; k < 128; k++) {
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decoded_obj["frame " + std::to_string(k)] = std::vector<uint8_t>(obj_range);
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for (int i = 0; i < obj_range; i++) {
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try {
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decoded_obj["frame " + std::to_string(k)][i] =
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obj_data[i + (obj_range * k)];
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} catch (...) {
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decoded_obj["frame " + std::to_string(k)][i] = 0;
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}
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}
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}
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return absl::OkStatus();
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}
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} // namespace gfx
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} // namespace app
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} // namespace yaze
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