Ray
29d505c98e
Moved all external libraries used by raylib to external folder inside raylib src. Makefile has already been update and also the different includes in raylib modules.
319 lines
10 KiB
C
319 lines
10 KiB
C
/**********************************************************************************************
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*
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* raylib.utils
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*
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* Utils Functions Definitions
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*
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* Uses external libs:
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* tinfl - zlib DEFLATE algorithm decompression lib
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* stb_image_write - PNG writting functions
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*
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* Copyright (c) 2014 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_png()
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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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// 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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// Data decompression function
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// NOTE: Allocated data MUST be freed!
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unsigned char *DecompressData(const unsigned char *data, unsigned long compSize, int uncompSize)
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{
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int tempUncompSize;
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unsigned char *pUncomp;
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// Allocate buffer to hold decompressed data
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pUncomp = (mz_uint8 *)malloc((size_t)uncompSize);
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// Check correct memory allocation
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if (pUncomp == 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(pUncomp, (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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free(pUncomp);
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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 pUncomp;
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}
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#if defined(PLATFORM_DESKTOP) || defined(PLATFORM_RPI)
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// Creates a bitmap (BMP) file from an array of pixel data
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// NOTE: This function is not explicitly available to raylib users
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void WriteBitmap(const char *fileName, unsigned char *imgData, int width, int height)
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{
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int filesize = 54 + 3*width*height;
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unsigned char bmpFileHeader[14] = {'B','M', 0,0,0,0, 0,0, 0,0, 54,0,0,0}; // Standard BMP file header
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unsigned char bmpInfoHeader[40] = {40,0,0,0, 0,0,0,0, 0,0,0,0, 1,0, 24,0}; // Standard BMP info header
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bmpFileHeader[2] = (unsigned char)(filesize);
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bmpFileHeader[3] = (unsigned char)(filesize>>8);
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bmpFileHeader[4] = (unsigned char)(filesize>>16);
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bmpFileHeader[5] = (unsigned char)(filesize>>24);
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bmpInfoHeader[4] = (unsigned char)(width);
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bmpInfoHeader[5] = (unsigned char)(width>>8);
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bmpInfoHeader[6] = (unsigned char)(width>>16);
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bmpInfoHeader[7] = (unsigned char)(width>>24);
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bmpInfoHeader[8] = (unsigned char)(height);
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bmpInfoHeader[9] = (unsigned char)(height>>8);
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bmpInfoHeader[10] = (unsigned char)(height>>16);
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bmpInfoHeader[11] = (unsigned char)(height>>24);
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FILE *bmpFile = fopen(fileName, "wb"); // Define a pointer to bitmap file and open it in write-binary mode
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if (bmpFile == NULL)
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{
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TraceLog(WARNING, "[%s] BMP file could not be created", fileName);
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}
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else
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{
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// NOTE: fwrite parameters are: data pointer, size in bytes of each element to be written, number of elements, file-to-write pointer
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fwrite(bmpFileHeader, sizeof(unsigned char), 14, bmpFile); // Write BMP file header data
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fwrite(bmpInfoHeader, sizeof(unsigned char), 40, bmpFile); // Write BMP info header data
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// Write pixel data to file
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for (int y = 0; y < height ; y++)
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{
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for (int x = 0; x < width; x++)
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{
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fputc(imgData[(x*4)+2 + (y*width*4)], bmpFile);
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fputc(imgData[(x*4)+1 + (y*width*4)], bmpFile);
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fputc(imgData[(x*4) + (y*width*4)], bmpFile);
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}
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}
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}
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fclose(bmpFile); // Close bitmap file
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}
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// Creates a PNG image file from an array of pixel data
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// NOTE: Uses stb_image_write
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void WritePNG(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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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: __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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