spine-runtimes/spine-flutter/src/main.cpp

#include "spine/spine.h"
#include "spine_flutter.h"

using namespace spine;

int main(int argc, char** argv) {
    int atlasLength = 0;
    void* atlasData = SpineExtension::getInstance()->_readFile("/Users/badlogic/workspaces/spine-runtimes/spine-flutter/example/assets/spineboy.atlas", &atlasLength);
    uint8_t* cstringAtlas = SpineExtension::calloc<uint8_t>(atlasLength + 1, __FILE__, __LINE__);
    memcpy(cstringAtlas, atlasData, atlasLength);
    int dataLength = 0;
    uint8_t* data = (uint8_t*)SpineExtension::getInstance()->_readFile("/Users/badlogic/workspaces/spine-runtimes/spine-flutter/example/assets/spineboy-pro.skel", &dataLength);

    spine_atlas atlas = spine_atlas_load((const utf8*)cstringAtlas);
    spine_skeleton_data_result result = spine_skeleton_data_load_binary(atlas, data, dataLength);
    spine_skeleton_drawable drawable = spine_skeleton_drawable_create(spine_skeleton_data_result_get_data(result));
    spine_skeleton skeleton = spine_skeleton_drawable_get_skeleton(drawable);
    spine_skeleton_update_world_transform(skeleton);
    spine_render_command cmd = spine_skeleton_drawable_render(drawable);
    int numVertices = spine_render_command_get_num_vertices(cmd);
    int numIndices = spine_render_command_get_num_indices(cmd);
    float* positions = spine_render_command_get_positions(cmd);
    float* uvs = spine_render_command_get_uvs(cmd);
    int32_t *colors = spine_render_command_get_colors(cmd);
    uint16_t *indices = spine_render_command_get_indices(cmd);
    String str;
    str.append(numVertices);
    str.append("\n");
    str.append(numIndices);
    str.append("\n");
    for (int i = 0; i < numVertices * 2; i++) {
        str.append(positions[i]);
        str.append("\n");
    }
    for (int i = 0; i < numVertices * 2; i++) {
        str.append(uvs[i]);
        str.append("\n");
    }
    for (int i = 0; i < numVertices; i++) {
        str.append(colors[i]);
        str.append("\n");
    }
    for (int i = 0; i < numIndices; i++) {
        str.append(indices[i]);
        str.append("\n");
    }
    FILE *file = fopen("/Users/badlogic/Desktop/spineboy.mesh", "w");
    fwrite(str.buffer(), str.length(), 1, file);
    fclose(file);
}