VKSFile.cpp

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/* Contact chebert@nvidia.com (Chris Hebert) for feedback */

#include "VKSFile.h"
#include "nv_helpers/nvprint.hpp"
#include <iostream>
#include <main.h>

#if defined(WIN32)
#else

void fopen_s(FILE **inFile,const char *inPath, const char *inPermissions){
    *inFile = fopen(inPath,inPermissions);
}

void fread_s(void* inBuffer, size_t inBufSize, size_t inSize, size_t inCount, FILE *inFP){
    fread(inBuffer,inSize,inCount,inFP);
}

#endif

void readVKSFile(VKSFile *inFile){

	FILE *fp;

	std::vector<std::string> searchPaths;
    searchPaths.push_back(std::string("."));
    searchPaths.push_back(std::string("./resources_" PROJECT_NAME));
    searchPaths.push_back(std::string(PROJECT_NAME));
    searchPaths.push_back(NVPWindow::sysExePath() + std::string(PROJECT_RELDIRECTORY));
	//searchPaths.push_back(std::string(PROJECT_ABSDIRECTORY));

    std::string filePath;
	for (uint32_t i = 0; i < searchPaths.size(); ++i){
		filePath = searchPaths[i] + "/" + inFile->outputFile;

		fopen_s(&fp, filePath.c_str(), "rb");
		if (fp) break;
	}

	if (!fp){
		LOGE("Could not load vks file %s\n", filePath.c_str());
		exit(1);
    }
    else {
        LOGOK("Loaded model %s\n", filePath.c_str())
    }

	fread_s((void *)&inFile->header, sizeof(VKSFileHeader), sizeof(VKSFileHeader), 1, fp);


	VKSNodeRecord *nodes = (VKSNodeRecord*)malloc(sizeof(VKSNodeRecord) * inFile->header.nodeCount);

	fread_s(nodes, sizeof(VKSNodeRecord)*inFile->header.nodeCount, sizeof(VKSNodeRecord), inFile->header.nodeCount, fp);

	inFile->nodes.reserve(inFile->header.nodeCount);
	inFile->nodes.assign(nodes, nodes + inFile->header.nodeCount);

	VKSMeshRecord *meshes = (VKSMeshRecord *)malloc(sizeof(VKSMeshRecord) * inFile->header.meshCount);

	fread_s(meshes, sizeof(VKSMeshRecord)*inFile->header.meshCount, sizeof(VKSMeshRecord), inFile->header.meshCount, fp);
	inFile->meshes.reserve(inFile->header.meshCount);
	inFile->meshes.assign(meshes,meshes+inFile->header.meshCount);

	VKSMaterialRecord *materials = (VKSMaterialRecord*)malloc(sizeof(VKSMaterialRecord) * inFile->header.materialCount);

	fread_s(materials, sizeof(VKSMaterialRecord)*inFile->header.materialCount, sizeof(VKSMaterialRecord), inFile->header.materialCount, fp);

	inFile->materials.reserve(inFile->header.materialCount);
	inFile->materials.assign(materials, materials + inFile->header.materialCount);

	VKSAnimationRecord *animations = (VKSAnimationRecord*)malloc(sizeof(VKSAnimationRecord) * inFile->header.animationCount);
	fread_s(animations, sizeof(VKSAnimationRecord) * inFile->header.animationCount, sizeof(VKSAnimationRecord), inFile->header.animationCount, fp);

	inFile->animations.reserve(inFile->header.animationCount);
	inFile->animations.assign(animations, animations + inFile->header.animationCount);

	uint32_t vertexElementCount;
	uint32_t indexCount;

	fread_s(&vertexElementCount, sizeof(uint32_t), sizeof(uint32_t), 1, fp);

	uint32_t vtxSize = 8;

	inFile->vertexCount = vertexElementCount / vtxSize;
	

	if (vertexElementCount > 0){
		float *vertexElements = (float*)malloc(sizeof(float)*vertexElementCount);
		fread_s(vertexElements, sizeof(float)*vertexElementCount, sizeof(float), vertexElementCount, fp);
		inFile->vertices.reserve(vertexElementCount);
		inFile->vertices.assign(vertexElements, vertexElements+vertexElementCount);
	}

	fread_s(&indexCount, sizeof(uint32_t), sizeof(uint32_t), 1, fp);

	inFile->indexCount = indexCount;

	if (indexCount > 0){
		uint32_t *indices = (uint32_t*)malloc(sizeof(uint32_t) * indexCount);
		fread_s(indices, sizeof(uint32_t) * indexCount, sizeof(uint32_t), indexCount, fp);

		inFile->indices.reserve(indexCount);
		inFile->indices.assign(indices, indices + indexCount);
	}

	uint32_t textureCount = inFile->header.textureCount;

	if (textureCount > 0){
		VKSTextureRecord *textures = (VKSTextureRecord*)malloc(sizeof(VKSTextureRecord) * textureCount);
		fread_s(textures, sizeof(VKSTextureRecord) * textureCount, sizeof(VKSTextureRecord), textureCount, fp);

		inFile->textures.reserve(textureCount);
		inFile->textures.assign(textures, textures + textureCount);
	}

	fread_s(&inFile->animationNodeCount, sizeof(uint32_t), sizeof(uint32_t), 1, fp);

	VKSAnimationNodeRecord *animNodes = (VKSAnimationNodeRecord*)malloc(sizeof(VKSAnimationNodeRecord) * inFile->animationNodeCount);
	fread_s(animNodes, sizeof(VKSAnimationNodeRecord) * inFile->animationNodeCount, sizeof(VKSAnimationNodeRecord), inFile->animationNodeCount, fp);

	inFile->animationNodes.reserve(inFile->animationNodeCount);
	inFile->animationNodes.assign(animNodes, animNodes + inFile->animationNodeCount);

	fread_s(&inFile->animationKeyCount, sizeof(uint32_t), sizeof(uint32_t), 1, fp);
	
	VKSAnimationKeyRecord *animKeys = (VKSAnimationKeyRecord*)malloc(sizeof(VKSAnimationKeyRecord) * inFile->animationKeyCount);
	fread_s(animKeys, sizeof(VKSAnimationKeyRecord) * inFile->animationKeyCount, sizeof(VKSAnimationKeyRecord), inFile->animationKeyCount, fp);

	inFile->animationKeys.reserve(inFile->animationKeyCount);
	inFile->animationKeys.assign(animKeys, animKeys + inFile->animationKeyCount);


	fclose(fp);

}