rRES raylib resources custom file format support
First version of custom raylib resources file format -IN DEVELOPMENT-
This commit is contained in:
raysan5
parent
bf3a213e44
commit
202f45415c
20
src/raylib.h
20
src/raylib.h
@ -602,6 +602,26 @@ typedef enum {
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HMD_FOVE_VR,
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} VrDevice;
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// rRES data returned when reading a resource, it contains all required data for user (24 byte)
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typedef struct {
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unsigned int type; // Resource type (4 byte)
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unsigned int param1; // Resouce parameter 1 (4 byte)
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unsigned int param2; // Resouce parameter 2 (4 byte)
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unsigned int param3; // Resouce parameter 3 (4 byte)
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unsigned int param4; // Resouce parameter 4 (4 byte)
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void *data; // Resource data pointer (4 byte)
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} RRESData;
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typedef enum {
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RRES_RAW = 0,
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RRES_IMAGE,
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RRES_WAVE,
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RRES_VERTEX,
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RRES_TEXT
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} RRESDataType;
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#ifdef __cplusplus
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extern "C" { // Prevents name mangling of functions
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#endif
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444
src/rres.h
Normal file
444
src/rres.h
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@ -0,0 +1,444 @@
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/**********************************************************************************************
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*
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* rres - raylib Resource custom format management functions
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*
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* Basic functions to load/save rRES resource files
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*
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* External libs:
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* tinfl - DEFLATE decompression functions
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*
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* Module Configuration Flags:
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*
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* #define RREM_IMPLEMENTATION
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* Generates the implementation of the library into the included file.
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*
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*
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* Copyright (c) 2016-2017 Ramon Santamaria (@raysan5)
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*
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* This software is provided "as-is", without any express or implied warranty. In no event
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* will the authors be held liable for any damages arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose, including commercial
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* applications, and to alter it and redistribute it freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not claim that you
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* wrote the original software. If you use this software in a product, an acknowledgment
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* in the product documentation would be appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be misrepresented
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* as being the original software.
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*
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* 3. This notice may not be removed or altered from any source distribution.
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*
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**********************************************************************************************/
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#ifndef RRES_H
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#define RRES_H
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#if !defined(RRES_STANDALONE)
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#include "raylib.h"
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#endif
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//#define RRES_STATIC
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#ifdef RRES_STATIC
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#define RRESDEF static // Functions just visible to module including this file
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#else
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#ifdef __cplusplus
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#define RRESDEF extern "C" // Functions visible from other files (no name mangling of functions in C++)
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#else
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#define RRESDEF extern // Functions visible from other files
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#endif
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#endif
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//----------------------------------------------------------------------------------
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// Defines and Macros
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//----------------------------------------------------------------------------------
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#define MAX_RESOURCES_SUPPORTED 256
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//----------------------------------------------------------------------------------
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// Types and Structures Definition
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// NOTE: Some types are required for RAYGUI_STANDALONE usage
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//----------------------------------------------------------------------------------
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#if defined(RRES_STANDALONE)
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// rRES data returned when reading a resource, it contains all required data for user (24 byte)
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typedef struct {
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unsigned int type; // Resource type (4 byte)
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unsigned int param1; // Resouce parameter 1 (4 byte)
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unsigned int param2; // Resouce parameter 2 (4 byte)
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unsigned int param3; // Resouce parameter 3 (4 byte)
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unsigned int param4; // Resouce parameter 4 (4 byte)
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void *data; // Resource data pointer (4 byte)
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} RRESData;
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typedef enum {
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RRES_RAW = 0,
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RRES_IMAGE,
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RRES_WAVE,
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RRES_VERTEX,
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RRES_TEXT
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} RRESDataType;
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#endif
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//----------------------------------------------------------------------------------
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// Global variables
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//----------------------------------------------------------------------------------
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//...
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//----------------------------------------------------------------------------------
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// Module Functions Declaration
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//----------------------------------------------------------------------------------
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RRESDEF RRESData LoadResource(const char *rresFileName);
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RRESDEF RRESData LoadResourceById(const char *rresFileName, int rresId);
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RRESDEF void UnloadResource(RRESData rres);
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#endif // RRES_H
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/***********************************************************************************
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*
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* RRES IMPLEMENTATION
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*
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************************************************************************************/
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#if defined(RRES_IMPLEMENTATION)
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#include <stdio.h> // Required for: FILE, fopen(), fclose()
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// Check if custom malloc/free functions defined, if not, using standard ones
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#if !defined(RRES_MALLOC)
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#include <stdlib.h> // Required for: malloc(), free()
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#define RRES_MALLOC(size) malloc(size)
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#define RRES_FREE(ptr) free(ptr)
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#endif
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#include "external/tinfl.c" // Required for: tinfl_decompress_mem_to_mem()
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// NOTE: DEFLATE algorythm data decompression
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//----------------------------------------------------------------------------------
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// Defines and Macros
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//----------------------------------------------------------------------------------
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//...
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//----------------------------------------------------------------------------------
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// Types and Structures Definition
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//----------------------------------------------------------------------------------
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// rRES file header (8 byte)
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typedef struct {
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char id[4]; // File identifier: rRES (4 byte)
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unsigned short version; // File version and subversion (2 byte)
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unsigned short count; // Number of resources in this file (2 byte)
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} RRESFileHeader;
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// rRES info header, every resource includes this header (12 byte + 16 byte)
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typedef struct {
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unsigned short id; // Resource unique identifier (2 byte)
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unsigned char dataType; // Resource data type (1 byte)
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unsigned char compType; // Resource data compression type (1 byte)
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unsigned int dataSize; // Resource data size (compressed or not, only DATA) (4 byte)
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unsigned int uncompSize; // Resource data size (uncompressed, only DATA) (4 byte)
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unsigned int param1; // Resouce parameter 1 (4 byte)
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unsigned int param2; // Resouce parameter 2 (4 byte)
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unsigned int param3; // Resouce parameter 3 (4 byte)
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unsigned int param4; // Resouce parameter 4 (4 byte)
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} RRESInfoHeader;
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// Compression types
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typedef enum {
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RRES_COMP_NONE = 0, // No data compression
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RRES_COMP_DEFLATE, // DEFLATE compression
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RRES_COMP_LZ4, // LZ4 compression
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RRES_COMP_LZMA, // LZMA compression
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// brotli, zopfli, gzip // Other compression algorythms...
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} RRESCompressionType;
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#if defined(RRES_STANDALONE)
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typedef enum { INFO = 0, ERROR, WARNING, DEBUG, OTHER } TraceLogType;
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#endif
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//----------------------------------------------------------------------------------
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// Global Variables Definition
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//----------------------------------------------------------------------------------
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//...
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//----------------------------------------------------------------------------------
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// Module specific Functions Declaration
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//----------------------------------------------------------------------------------
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static void *DecompressData(const unsigned char *data, unsigned long compSize, int uncompSize);
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//----------------------------------------------------------------------------------
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// Module Functions Definition
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//----------------------------------------------------------------------------------
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// Load resource from file (only one)
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// NOTE: Returns uncompressed data with parameters, only first resource found
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RRESDEF RRESData LoadResource(const char *fileName)
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{
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RRESData rres = { 0 };
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RRESFileHeader fileHeader;
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RRESInfoHeader infoHeader;
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FILE *rresFile = fopen(fileName, "rb");
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if (rresFile == NULL) TraceLog(WARNING, "[%s] rRES raylib resource file could not be opened", fileName);
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else
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{
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// Read rres file info header
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fread(&fileHeader.id[0], sizeof(char), 1, rresFile);
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fread(&fileHeader.id[1], sizeof(char), 1, rresFile);
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fread(&fileHeader.id[2], sizeof(char), 1, rresFile);
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fread(&fileHeader.id[3], sizeof(char), 1, rresFile);
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fread(&fileHeader.version, sizeof(short), 1, rresFile);
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fread(&fileHeader.count, sizeof(short), 1, rresFile);
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// Verify "rRES" identifier
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if ((fileHeader.id[0] != 'r') && (fileHeader.id[1] != 'R') && (fileHeader.id[2] != 'E') && (fileHeader.id[3] != 'S'))
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{
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TraceLog(WARNING, "[%s] This is not a valid raylib resource file", fileName);
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}
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else
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{
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// Read first resource info and parameters
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fread(&infoHeader, sizeof(RRESInfoHeader), 1, rresFile);
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// Register data type and parameters
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rres.type = infoHeader.dataType;
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rres.param1 = infoHeader.param1;
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rres.param2 = infoHeader.param2;
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rres.param3 = infoHeader.param3;
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rres.param4 = infoHeader.param4;
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// Read resource data block
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void *data = RRES_MALLOC(infoHeader.dataSize);
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fread(data, infoHeader.dataSize, 1, rresFile);
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if (infoHeader.compType == RRES_COMP_DEFLATE)
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{
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void *uncompData = DecompressData(data, infoHeader.dataSize, infoHeader.uncompSize);
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rres.data = uncompData;
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RRES_FREE(data);
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}
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else rres.data = data;
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if (rres.data != NULL) TraceLog(INFO, "[%s] Resource data loaded successfully", fileName);
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}
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fclose(rresFile);
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}
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return rres;
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}
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// Load resource from file by id
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// NOTE: Returns uncompressed data with parameters, search resource by id
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RRESDEF RRESData LoadResourceById(const char *fileName, int rresId)
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{
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RRESData rres = { 0 };
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RRESFileHeader fileHeader;
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RRESInfoHeader infoHeader;
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FILE *rresFile = fopen(fileName, "rb");
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if (rresFile == NULL) TraceLog(WARNING, "[%s] rRES raylib resource file could not be opened", fileName);
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else
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{
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// Read rres file info header
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fread(&fileHeader.id[0], sizeof(char), 1, rresFile);
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fread(&fileHeader.id[1], sizeof(char), 1, rresFile);
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fread(&fileHeader.id[2], sizeof(char), 1, rresFile);
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fread(&fileHeader.id[3], sizeof(char), 1, rresFile);
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fread(&fileHeader.version, sizeof(short), 1, rresFile);
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fread(&fileHeader.count, sizeof(short), 1, rresFile);
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// Verify "rRES" identifier
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if ((fileHeader.id[0] != 'r') && (fileHeader.id[1] != 'R') && (fileHeader.id[2] != 'E') && (fileHeader.id[3] != 'S'))
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{
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TraceLog(WARNING, "[%s] This is not a valid raylib resource file", fileName);
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}
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else
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{
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for (int i = 0; i < fileHeader.count; i++)
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{
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// Read resource info and parameters
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fread(&infoHeader, sizeof(RRESInfoHeader), 1, rresFile);
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if (infoHeader.id == rresId)
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{
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// Register data type and parameters
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rres.type = infoHeader.dataType;
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rres.param1 = infoHeader.param1;
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rres.param2 = infoHeader.param2;
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rres.param3 = infoHeader.param3;
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rres.param4 = infoHeader.param4;
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// Read resource data block
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void *data = RRES_MALLOC(infoHeader.dataSize);
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fread(data, infoHeader.dataSize, 1, rresFile);
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if (infoHeader.compType == RRES_COMP_DEFLATE)
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{
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void *uncompData = DecompressData(data, infoHeader.dataSize, infoHeader.uncompSize);
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rres.data = uncompData;
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RRES_FREE(data);
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}
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else rres.data = data;
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if (rres.data != NULL) TraceLog(INFO, "[%s][ID %i] Resource data loaded successfully", fileName, (int)rresId);
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}
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else
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{
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// Skip required data to read next resource infoHeader
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fseek(rresFile, infoHeader.dataSize, SEEK_CUR);
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}
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}
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if (rres.data == NULL) TraceLog(WARNING, "[%s][ID %i] Requested resource could not be found, wrong id?", fileName, (int)rresId);
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}
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fclose(rresFile);
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}
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return rres;
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}
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RRESDEF void UnloadResource(RRESData rres)
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{
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if (rres.data != NULL) free(rres.data);
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}
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//----------------------------------------------------------------------------------
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// Module specific Functions Definition
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//----------------------------------------------------------------------------------
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// Data decompression function
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// NOTE: Allocated data MUST be freed by user
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static void *DecompressData(const unsigned char *data, unsigned long compSize, int uncompSize)
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{
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int tempUncompSize;
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void *uncompData;
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// Allocate buffer to hold decompressed data
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uncompData = (mz_uint8 *)RRES_MALLOC((size_t)uncompSize);
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// Check correct memory allocation
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if (uncompData == NULL)
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{
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TraceLog(WARNING, "Out of memory while decompressing data");
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}
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else
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{
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// Decompress data
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tempUncompSize = tinfl_decompress_mem_to_mem(uncompData, (size_t)uncompSize, data, compSize, 1);
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if (tempUncompSize == -1)
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{
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TraceLog(WARNING, "Data decompression failed");
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RRES_FREE(uncompData);
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}
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if (uncompSize != (int)tempUncompSize)
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{
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TraceLog(WARNING, "Expected uncompressed size do not match, data may be corrupted");
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TraceLog(WARNING, " -- Expected uncompressed size: %i", uncompSize);
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TraceLog(WARNING, " -- Returned uncompressed size: %i", tempUncompSize);
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}
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TraceLog(INFO, "Data decompressed successfully from %u bytes to %u bytes", (mz_uint32)compSize, (mz_uint32)tempUncompSize);
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}
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return uncompData;
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}
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// Some required functions for rres standalone module version
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#if defined(RRES_STANDALONE)
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// Outputs a trace log message (INFO, ERROR, WARNING)
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// NOTE: If a file has been init, output log is written there
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void TraceLog(int msgType, const char *text, ...)
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{
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va_list args;
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int traceDebugMsgs = 0;
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#ifdef DO_NOT_TRACE_DEBUG_MSGS
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traceDebugMsgs = 0;
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#endif
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switch (msgType)
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{
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case INFO: fprintf(stdout, "INFO: "); break;
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case ERROR: fprintf(stdout, "ERROR: "); break;
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case WARNING: fprintf(stdout, "WARNING: "); break;
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case DEBUG: if (traceDebugMsgs) fprintf(stdout, "DEBUG: "); break;
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default: break;
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}
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if ((msgType != DEBUG) || ((msgType == DEBUG) && (traceDebugMsgs)))
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{
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va_start(args, text);
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vfprintf(stdout, text, args);
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va_end(args);
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fprintf(stdout, "\n");
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}
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if (msgType == ERROR) exit(1); // If ERROR message, exit program
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}
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#endif
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#endif // RAYGUI_IMPLEMENTATION
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/*
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//T LoadResource(const char *rresFileName, int resId);
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// ASSUMPTION: rRES files only contain one resource (solution to id requirement...)
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// Now, rres file check and data loading can be managed inside each function:
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Image LoadImage(); // -> Texture2D
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Wave LoadWave() // -> Sound, Music
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const char *LoadText(); // -> Shader, Material
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// NOTE: RRESData uses void* data pointer, so we can load to image.data, wave.data, mesh.*, (unsigned char *)
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Image LoadImagePro(void *data, int width, int height, int format);
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Image LoadImagePro(rres.data, rres.param1, rres.param2, rres.param3);
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Mesh LoadMeshEx(int numVertex, float *vData, float *vtData, float *vnData, Color *cData);
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Mesh LoadMeshEx(rres.param1, rres.data, rres.data + offset, rres.data + offset*2, rres.data + offset*3);
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Shader LoadShaderV(const char *vsText, int vsLength);
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Shader LoadShaderV(rres.data, rres.param1);
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Wave LoadWaveEx(void *data, int sampleCount, int sampleRate, int sampleSize, int channels);
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Wave LoadWaveEx(rres.data, rres.param1, (int)rres.param2, (int)rres.param3, (int)rres.param4);
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// Max value for an unsigned short: 65535
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// Parameters information depending on resource type (IMAGE, WAVE, MESH, TEXT)
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// Image data params
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int imgWidth, imgHeight;
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char colorFormat, mipmaps;
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// Wave data params
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short sampleRate, bps;
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char channels, reserved;
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// Mesh data params
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int vertexCount, reserved;
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short vertexTypesMask, vertexFormatsMask;
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// Text data params
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int numChars;
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char textFormat, language, charsetCode;
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*/
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