396 lines
13 KiB
C++
396 lines
13 KiB
C++
#include "dynos.cpp.h"
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extern "C" {
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "stb/stb_image_write.h"
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}
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///////////
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// Utils //
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///////////
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static bool FileTypeExists(SysPath& aFolder, const char* fileType) {
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DIR *_Dir = opendir(aFolder.c_str());
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if (!_Dir) { return false; }
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int fileTypeLen = strlen(fileType);
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struct dirent *_Ent = NULL;
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while ((_Ent = readdir(_Dir)) != NULL) {
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int nameLen = strlen(_Ent->d_name);
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if (nameLen > fileTypeLen && !strcmp(&_Ent->d_name[nameLen - fileTypeLen], fileType)) {
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closedir(_Dir);
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return true;
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}
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}
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closedir(_Dir);
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return false;
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}
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static TexData* LoadTextureFromFile(GfxData *aGfxData, const char* aFile) {
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// Image file
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SysPath _Filename;
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int fileNameLen = strlen(aFile);
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if (aGfxData->mPackFolder.length() == 0) {
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_Filename = aFile;
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} else if (fileNameLen > 4 && !strcmp(&aFile[fileNameLen - 4], ".png")) {
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_Filename = fstring("%s/%s", aGfxData->mPackFolder.c_str(), aFile);
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} else {
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_Filename = fstring("%s/%s.png", aGfxData->mPackFolder.c_str(), aFile);
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}
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FILE *_File = fopen(_Filename.c_str(), "rb");
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// Check as if we're an Actor.
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if (!_File) {
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SysPath _ActorFilename = "";
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const char* _SubString = strchr(aFile, '/'); // Remove the "actors/"
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if (_SubString && *_SubString) {
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_SubString++;
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_ActorFilename = fstring("%s/%s.png", aGfxData->mPackFolder.c_str(), _SubString);
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_File = fopen(_ActorFilename.c_str(), "rb");
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}
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// The file does not exist in either spot!
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if (!_File) {
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PrintError(" ERROR: Unable to open file at \"%s\" or \"%s\"", _Filename.c_str(), _ActorFilename.c_str());
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return NULL;
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}
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}
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// Texture data
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fseek(_File, 0, SEEK_END);
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TexData* _Texture = New<TexData>();
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_Texture->mPngData.Resize(ftell(_File)); rewind(_File);
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fread(_Texture->mPngData.begin(), sizeof(u8), _Texture->mPngData.Count(), _File);
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fclose(_File);
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return _Texture;
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}
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void DynOS_Tex_ConvertTextureDataToPng(GfxData *aGfxData, TexData* aTexture) {
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// Convert to RGBA32
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const u8 *_Palette = (aGfxData->mGfxContext.mCurrentPalette ? aGfxData->mGfxContext.mCurrentPalette->mData->mRawData.begin() : NULL);
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u8 *_Buffer = DynOS_Tex_ConvertToRGBA32(aTexture->mRawData.begin(), aTexture->mRawData.Count(), aTexture->mRawFormat, aTexture->mRawSize, _Palette);
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if (_Buffer == NULL) {
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PrintError(" ERROR: Unknown texture format");
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return;
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}
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// Convert to PNG
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s32 _PngLength = 0;
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u8 *_PngData = stbi_write_png_to_mem(_Buffer, 0, aTexture->mRawWidth, aTexture->mRawHeight, 4, &_PngLength);
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if (!_PngData || !_PngLength) {
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PrintError(" ERROR: Cannot convert texture to PNG");
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return;
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}
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aTexture->mPngData = Array<u8>(_PngData, _PngData + _PngLength);
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Delete(_PngData);
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}
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/////////////
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// Parsing //
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/////////////
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DataNode<TexData>* DynOS_Tex_Parse(GfxData* aGfxData, DataNode<TexData>* aNode) {
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if (aNode->mData) return aNode;
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// Check tokens Count
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if (aNode->mTokens.Count() < 1) {
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PrintError(" ERROR: %s: not enough data", aNode->mName.begin());
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return aNode;
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}
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// #include"[texture].inc.c"
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s32 i0 = aNode->mTokens[0].Find("#include");
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if (i0 != -1) {
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s32 i1 = aNode->mTokens[0].Find(".inc.c");
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if (i1 == -1) {
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PrintError(" ERROR: %s: missing .inc.c in String %s", aNode->mName.begin(), aNode->mTokens[0].begin());
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return aNode;
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}
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// Filename
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String _Filename = aNode->mTokens[0].SubString(i0 + 9, i1 - i0 - 9);
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aNode->mData = LoadTextureFromFile(aGfxData, _Filename.begin());
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aNode->mLoadIndex = aGfxData->mLoadIndex++;
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return aNode;
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}
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// double quoted String
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s32 dq0 = aNode->mTokens[0].Find('\"');
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if (dq0 != -1) {
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s32 dq1 = aNode->mTokens[0].Find('\"', dq0 + 1);
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if (dq1 == -1) {
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PrintError(" ERROR: %s: missing second quote in String %s", aNode->mName.begin(), aNode->mTokens[0].begin());
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return aNode;
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}
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// Filename
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String _Filename = aNode->mTokens[0].SubString(dq0 + 1, dq1 - dq0 - 1);
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aNode->mData = LoadTextureFromFile(aGfxData, _Filename.begin());
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aNode->mLoadIndex = aGfxData->mLoadIndex++;
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return aNode;
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}
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// Stream of bytes
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aNode->mData = New<TexData>();
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aNode->mData->mRawWidth = -1; // Unknown for now, will be set later
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aNode->mData->mRawHeight = -1; // Unknown for now, will be set later
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aNode->mData->mRawFormat = -1; // Unknown for now, will be set later
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aNode->mData->mRawSize = -1; // Unknown for now, will be set later
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aNode->mData->mRawData.Resize(aNode->mTokens.Count());
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for (u64 j = 0; j != aNode->mTokens.Count(); ++j) {
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aNode->mData->mRawData[j] = aNode->mTokens[j].ParseInt();
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}
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aNode->mLoadIndex = aGfxData->mLoadIndex++;
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return aNode;
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}
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/////////////
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// Writing //
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/////////////
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void DynOS_Tex_Write(FILE* aFile, GfxData* aGfxData, DataNode<TexData> *aNode) {
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if (!aNode->mData) return;
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// Header
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WriteBytes<u8>(aFile, DATA_TYPE_TEXTURE);
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aNode->mName.Write(aFile);
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// Data
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aNode->mData->mPngData.Write(aFile);
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}
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static bool DynOS_Tex_WriteBinary(GfxData* aGfxData, const SysPath &aOutputFilename, String& aName, TexData* aTexData, bool aRawTexture) {
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FILE *_File = fopen(aOutputFilename.c_str(), "wb");
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if (!_File) {
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PrintError(" ERROR: Unable to create file \"%s\"", aOutputFilename.c_str());
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return false;
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}
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if (!aRawTexture) {
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// Write png-texture
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// Header
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WriteBytes<u8>(_File, DATA_TYPE_TEXTURE);
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aName.Write(_File);
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// Data
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aTexData->mPngData.Write(_File);
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fclose(_File);
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return true;
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}
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// Write raw-texture
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// Header
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WriteBytes<u8>(_File, DATA_TYPE_TEXTURE_RAW);
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aName.Write(_File);
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// load
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u8 *_RawData = stbi_load_from_memory(aTexData->mPngData.begin(), aTexData->mPngData.Count(), &aTexData->mRawWidth, &aTexData->mRawHeight, NULL, 4);
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aTexData->mRawFormat = G_IM_FMT_RGBA;
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aTexData->mRawSize = G_IM_SIZ_32b;
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aTexData->mRawData = Array<u8>(_RawData, _RawData + (aTexData->mRawWidth * aTexData->mRawHeight * 4));
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free(_RawData);
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// Data
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WriteBytes<s32>(_File, aTexData->mRawFormat);
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WriteBytes<s32>(_File, aTexData->mRawSize);
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WriteBytes<s32>(_File, aTexData->mRawWidth);
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WriteBytes<s32>(_File, aTexData->mRawHeight);
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aTexData->mRawData.Write(_File);
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fclose(_File);
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return true;
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}
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/////////////
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// Reading //
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/////////////
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DataNode<TexData>* DynOS_Tex_Load(FILE *aFile, GfxData *aGfxData) {
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DataNode<TexData> *_Node = New<DataNode<TexData>>();
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// Name
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_Node->mName.Read(aFile);
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// Data
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_Node->mData = New<TexData>();
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_Node->mData->mUploaded = false;
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_Node->mData->mPngData.Read(aFile);
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if (!_Node->mData->mPngData.Empty()) {
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u8 *_RawData = stbi_load_from_memory(_Node->mData->mPngData.begin(), _Node->mData->mPngData.Count(), &_Node->mData->mRawWidth, &_Node->mData->mRawHeight, NULL, 4);
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_Node->mData->mRawFormat = G_IM_FMT_RGBA;
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_Node->mData->mRawSize = G_IM_SIZ_32b;
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_Node->mData->mRawData = Array<u8>(_RawData, _RawData + (_Node->mData->mRawWidth * _Node->mData->mRawHeight * 4));
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free(_RawData);
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} else { // Probably a palette
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_Node->mData->mRawData = Array<u8>();
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_Node->mData->mRawWidth = 0;
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_Node->mData->mRawHeight = 0;
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_Node->mData->mRawFormat = 0;
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_Node->mData->mRawSize = 0;
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}
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// Append
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if (aGfxData) {
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aGfxData->mTextures.Add(_Node);
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}
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return _Node;
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}
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DataNode<TexData>* DynOS_Tex_LoadFromBinary(const SysPath &aPackFolder, const SysPath &aFilename, const char *aTexName, bool aAddToPack) {
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// Look for pack in cache
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PackData* _Pack = DynOS_Pack_GetFromPath(aPackFolder);
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// Look for tex in pack
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if (_Pack) {
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auto _Tex = DynOS_Pack_GetTex(_Pack, aTexName);
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if (_Tex != NULL) {
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return _Tex;
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}
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}
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// Load data from binary file
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DataNode<TexData>* _TexNode = NULL;
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FILE *_File = fopen(aFilename.c_str(), "rb");
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if (!_File) { return NULL; }
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u8 type = ReadBytes<u8>(_File);
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if (type == DATA_TYPE_TEXTURE) {
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// load png-texture
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_TexNode = New<DataNode<TexData>>();
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_TexNode->mData = New<TexData>();
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_TexNode->mName.Read(_File);
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_TexNode->mData->mPngData.Read(_File);
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fclose(_File);
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if (aAddToPack) {
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if (!_Pack) { _Pack = DynOS_Pack_Add(aPackFolder); }
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DynOS_Pack_AddTex(_Pack, _TexNode);
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}
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return _TexNode;
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} else if (type != DATA_TYPE_TEXTURE_RAW) {
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fclose(_File);
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return NULL;
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}
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// load raw-texture
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_TexNode = New<DataNode<TexData>>();
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_TexNode->mData = New<TexData>();
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_TexNode->mName.Read(_File);
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_TexNode->mData->mRawFormat = ReadBytes<s32>(_File);
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_TexNode->mData->mRawSize = ReadBytes<s32>(_File);
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_TexNode->mData->mRawWidth = ReadBytes<s32>(_File);
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_TexNode->mData->mRawHeight = ReadBytes<s32>(_File);
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_TexNode->mData->mRawData.Read(_File);
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fclose(_File);
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if (aAddToPack) {
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if (!_Pack) { _Pack = DynOS_Pack_Add(aPackFolder); }
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DynOS_Pack_AddTex(_Pack, _TexNode);
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}
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return _TexNode;
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}
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//////////////
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// Generate //
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//////////////
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static void DynOS_Tex_GeneratePack_Recursive(const SysPath &aPackFolder, SysPath &aOutputFolder, SysPath& aRelativePath, SysPath& aPrefix, GfxData *aGfxData, bool aAllowCustomTextures) {
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SysPath _DirPath = fstring("%s/%s", aPackFolder.c_str(), aRelativePath.c_str());
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// skip generation if any .c files exist
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if (FileTypeExists(_DirPath, ".c")) {
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return;
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}
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DIR *_PackDir = opendir(_DirPath.c_str());
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if (!_PackDir) { return; }
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struct dirent *_PackEnt = NULL;
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while ((_PackEnt = readdir(_PackDir)) != NULL) {
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// Skip . and ..
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if (SysPath(_PackEnt->d_name) == ".") continue;
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if (SysPath(_PackEnt->d_name) == "..") continue;
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SysPath _Path = fstring("%s%s", _DirPath.c_str(), _PackEnt->d_name);
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// Recurse through subfolders
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if (fs_sys_dir_exists(_Path.c_str())) {
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SysPath _NextPath = fstring("%s%s/", aRelativePath.c_str(), _PackEnt->d_name);
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SysPath _Prefix = fstring("%s.", _PackEnt->d_name);
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DynOS_Tex_GeneratePack_Recursive(aPackFolder, aOutputFolder, _NextPath, _Prefix, aGfxData, aAllowCustomTextures);
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continue;
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}
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// skip files that don't end in '.png'
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size_t nameLen = strlen(_PackEnt->d_name);
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if (nameLen < 4) continue;
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if (strcmp(&_PackEnt->d_name[nameLen - 4], ".png")) {
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continue;
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}
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// read the file
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aGfxData->mModelIdentifier++;
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TexData* _TexData = LoadTextureFromFile(aGfxData, _Path.c_str());
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if (_TexData == NULL) {
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PrintError("Error reading texture from file: %s", _Path.c_str());
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continue;
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}
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// write the file
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SysPath _RelativePath = fstring("%s%s", aRelativePath.c_str(), _PackEnt->d_name);
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String _BaseName;
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const char* _OverrideName = DynOS_Builtin_Tex_GetNameFromFileName(_RelativePath.c_str());
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if (_OverrideName) {
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_BaseName = _OverrideName;
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} else {
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_BaseName = _PackEnt->d_name;
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_BaseName = _BaseName.SubString(0, nameLen - 4);
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}
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// if we aren't overriding a texture, only generate textures in the output directory
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SysPath _OutputFolder = fstring("%s/", aOutputFolder.c_str());
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if (_OverrideName == NULL && (!aAllowCustomTextures || strcmp(_DirPath.c_str(), _OutputFolder.c_str()))) {
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continue;
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}
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SysPath _OutputPath = fstring("%s/%s.tex", aOutputFolder.c_str(), _BaseName.begin());
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// create output dir if it doesn't exist
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if (!fs_sys_dir_exists(aOutputFolder.c_str())) {
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fs_sys_mkdir(aOutputFolder.c_str());
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}
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DynOS_Tex_WriteBinary(aGfxData, _OutputPath, _BaseName, _TexData, (_OverrideName != NULL));
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}
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closedir(_PackDir);
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}
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void DynOS_Tex_GeneratePack(const SysPath &aPackFolder, SysPath &aOutputFolder, bool aAllowCustomTextures) {
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Print("---------- Texture pack folder: \"%s\" ----------", aPackFolder.c_str());
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// skip generation if any .tex files exist
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if (FileTypeExists(aOutputFolder, ".tex")) {
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return;
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}
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GfxData *_GfxData = New<GfxData>();
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_GfxData->mModelIdentifier = 0;
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SysPath _Empty = "";
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DynOS_Tex_GeneratePack_Recursive(aPackFolder, aOutputFolder, _Empty, _Empty, _GfxData, aAllowCustomTextures);
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DynOS_Gfx_Free(_GfxData);
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}
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