e7464d5fc3
- Renamed WritePNG() to SavePNG() for consistency with other file loading functions - Renamed WriteBitmap() to SaveBMP() for consistency with other file loading functions - Redesigned SaveBMP() to use stb_image_write
246 lines
7.7 KiB
C
246 lines
7.7 KiB
C
/**********************************************************************************************
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*
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* raylib.utils
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*
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* Some utility functions
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*
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* External libs:
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* tinfl - zlib DEFLATE algorithm decompression
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* stb_image_write - PNG writting functions
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*
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* Module Configuration Flags:
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* DO_NOT_TRACE_DEBUG_MSGS - Avoid showing DEBUG TraceLog() messages
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*
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*
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* Copyright (c) 2014-2016 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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#include "utils.h"
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#if defined(PLATFORM_ANDROID)
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#include <errno.h>
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#include <android/log.h>
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#include <android/asset_manager.h>
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#endif
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#include <stdlib.h> // Required for: malloc(), free()
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#include <stdio.h> // Required for: fopen(), fclose(), fputc(), fwrite(), printf(), fprintf(), funopen()
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#include <stdarg.h> // Required for: va_list, va_start(), vfprintf(), va_end()
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#include <string.h> // Required for: strlen(), strrchr(), strcmp()
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI)
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "external/stb_image_write.h" // Required for: stbi_write_bmp(), stbi_write_png()
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#endif
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#define RRES_IMPLEMENTATION
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#include "rres.h"
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#define DO_NOT_TRACE_DEBUG_MSGS // Avoid DEBUG messages tracing
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//----------------------------------------------------------------------------------
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// Global Variables Definition
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//----------------------------------------------------------------------------------
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#if defined(PLATFORM_ANDROID)
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AAssetManager *assetManager;
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#endif
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//----------------------------------------------------------------------------------
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// Module specific Functions Declaration
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//----------------------------------------------------------------------------------
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#if defined(PLATFORM_ANDROID)
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static int android_read(void *cookie, char *buf, int size);
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static int android_write(void *cookie, const char *buf, int size);
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static fpos_t android_seek(void *cookie, fpos_t offset, int whence);
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static int android_close(void *cookie);
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#endif
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//----------------------------------------------------------------------------------
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// Module Functions Definition - Utilities
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//----------------------------------------------------------------------------------
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI)
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// Creates a BMP image file from an array of pixel data
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void SaveBMP(const char *fileName, unsigned char *imgData, int width, int height, int compSize)
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{
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stbi_write_bmp(fileName, width, height, compSize, imgData);
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}
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// Creates a PNG image file from an array of pixel data
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void SavePNG(const char *fileName, unsigned char *imgData, int width, int height, int compSize)
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{
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stbi_write_png(fileName, width, height, compSize, imgData, width*compSize);
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}
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#endif
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI) || defined(PLATFORM_WEB)
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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 = 1;
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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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#if defined(PLATFORM_ANDROID)
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void TraceLog(int msgType, const char *text, ...)
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{
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static char buffer[100];
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int traceDebugMsgs = 1;
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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: strcpy(buffer, "INFO: "); break;
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case ERROR: strcpy(buffer, "ERROR: "); break;
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case WARNING: strcpy(buffer, "WARNING: "); break;
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case DEBUG: strcpy(buffer, "DEBUG: "); break;
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default: break;
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}
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strcat(buffer, text);
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strcat(buffer, "\n");
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va_list args;
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va_start(args, buffer);
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switch(msgType)
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{
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case INFO: __android_log_vprint(ANDROID_LOG_INFO, "raylib", buffer, args); break;
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case ERROR: __android_log_vprint(ANDROID_LOG_ERROR, "raylib", buffer, args); break;
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case WARNING: __android_log_vprint(ANDROID_LOG_WARN, "raylib", buffer, args); break;
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case DEBUG: if (traceDebugMsgs) __android_log_vprint(ANDROID_LOG_DEBUG, "raylib", buffer, args); break;
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default: break;
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}
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va_end(args);
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if (msgType == ERROR) exit(1);
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}
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// Initialize asset manager from android app
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void InitAssetManager(AAssetManager *manager)
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{
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assetManager = manager;
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}
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// Replacement for fopen
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FILE *android_fopen(const char *fileName, const char *mode)
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{
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if (mode[0] == 'w') return NULL;
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AAsset *asset = AAssetManager_open(assetManager, fileName, 0);
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if (!asset) return NULL;
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return funopen(asset, android_read, android_write, android_seek, android_close);
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}
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#endif
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// Keep track of memory allocated
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// NOTE: mallocType defines the type of data allocated
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/*
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void RecordMalloc(int mallocType, int mallocSize, const char *msg)
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{
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// TODO: Investigate how to record memory allocation data...
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// Maybe creating my own malloc function...
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}
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*/
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// Get the extension for a filename
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const char *GetExtension(const char *fileName)
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{
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const char *dot = strrchr(fileName, '.');
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if (!dot || dot == fileName) return "";
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return (dot + 1);
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}
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// Calculate next power-of-two value for a given num
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int GetNextPOT(int num)
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{
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if (num != 0)
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{
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num--;
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num |= (num >> 1); // Or first 2 bits
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num |= (num >> 2); // Or next 2 bits
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num |= (num >> 4); // Or next 4 bits
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num |= (num >> 8); // Or next 8 bits
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num |= (num >> 16); // Or next 16 bits
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num++;
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}
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return num;
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}
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//----------------------------------------------------------------------------------
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// Module specific Functions Definition
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//----------------------------------------------------------------------------------
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#if defined(PLATFORM_ANDROID)
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static int android_read(void *cookie, char *buf, int size)
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{
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return AAsset_read((AAsset *)cookie, buf, size);
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}
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static int android_write(void *cookie, const char *buf, int size)
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{
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TraceLog(ERROR, "Can't provide write access to the APK");
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return EACCES;
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}
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static fpos_t android_seek(void *cookie, fpos_t offset, int whence)
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{
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return AAsset_seek((AAsset *)cookie, offset, whence);
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}
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static int android_close(void *cookie)
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{
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AAsset_close((AAsset *)cookie);
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return 0;
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}
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#endif
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