diff options
Diffstat (limited to 'src/text.c')
| -rw-r--r-- | src/text.c | 218 |
1 files changed, 57 insertions, 161 deletions
@@ -5,12 +5,11 @@ * CONFIGURATION: * * #define SUPPORT_FILEFORMAT_FNT -* #define SUPPORT_FILEFORMAT_TTF / INCLUDE_STB_TRUETYPE -* #define SUPPORT_FILEFORMAT_IMAGE_FONT +* #define SUPPORT_FILEFORMAT_TTF * Selected desired fileformats to be supported for loading. Some of those formats are * supported by default, to remove support, just comment unrequired #define in this module * -* #define INCLUDE_DEFAULT_FONT / SUPPORT_DEFAULT_FONT +* #define SUPPORT_DEFAULT_FONT * * DEPENDENCIES: * stb_truetype - Load TTF file and rasterize characters data @@ -18,7 +17,7 @@ * * LICENSE: zlib/libpng * -* Copyright (c) 2014-2016 Ramon Santamaria (@raysan5) +* Copyright (c) 2014-2017 Ramon Santamaria (@raysan5) * * This software is provided "as-is", without any express or implied warranty. In no event * will the authors be held liable for any damages arising from the use of this software. @@ -37,6 +36,13 @@ * **********************************************************************************************/ +// Default supported features +//------------------------------------- +#define SUPPORT_DEFAULT_FONT +#define SUPPORT_FILEFORMAT_FNT +#define SUPPORT_FILEFORMAT_TTF +//------------------------------------- + #include "raylib.h" #include <stdlib.h> // Required for: malloc(), free() @@ -44,12 +50,14 @@ #include <stdarg.h> // Required for: va_list, va_start(), vfprintf(), va_end() #include <stdio.h> // Required for: FILE, fopen(), fclose(), fscanf(), feof(), rewind(), fgets() -#include "utils.h" // Required for: GetExtension() +#include "utils.h" // Required for: fopen() Android mapping -// Following libs are used on LoadTTF() -#define STBTT_STATIC // Define stb_truetype functions static to this module -#define STB_TRUETYPE_IMPLEMENTATION -#include "external/stb_truetype.h" // Required for: stbtt_BakeFontBitmap() +#if defined(SUPPORT_FILEFORMAT_TTF) + // Following libs are used on LoadTTF() + #define STBTT_STATIC // Define stb_truetype functions static to this module + #define STB_TRUETYPE_IMPLEMENTATION + #include "external/stb_truetype.h" // Required for: stbtt_BakeFontBitmap() +#endif // Rectangle packing functions (not used at the moment) //#define STB_RECT_PACK_IMPLEMENTATION @@ -61,8 +69,6 @@ #define MAX_FORMATTEXT_LENGTH 64 #define MAX_SUBTEXT_LENGTH 64 -#define BIT_CHECK(a,b) ((a) & (1 << (b))) - //---------------------------------------------------------------------------------- // Types and Structures Definition //---------------------------------------------------------------------------------- @@ -71,8 +77,10 @@ //---------------------------------------------------------------------------------- // Global variables //---------------------------------------------------------------------------------- +#if defined(SUPPORT_DEFAULT_FONT) static SpriteFont defaultFont; // Default font provided by raylib // NOTE: defaultFont is loaded on InitWindow and disposed on CloseWindow [module: core] +#endif //---------------------------------------------------------------------------------- // Other Modules Functions Declaration (required by text) @@ -85,18 +93,28 @@ static SpriteFont defaultFont; // Default font provided by raylib static int GetCharIndex(SpriteFont font, int letter); static SpriteFont LoadImageFont(Image image, Color key, int firstChar); // Load a Image font file (XNA style) -static SpriteFont LoadRBMF(const char *fileName); // Load a rBMF font file (raylib BitMap Font) +#if defined(SUPPORT_FILEFORMAT_FNT) static SpriteFont LoadBMFont(const char *fileName); // Load a BMFont file (AngelCode font file) +#endif +#if defined(SUPPORT_FILEFORMAT_TTF) static SpriteFont LoadTTF(const char *fileName, int fontSize, int charsCount, int *fontChars); // Load spritefont from TTF data +#endif +#if defined(SUPPORT_DEFAULT_FONT) extern void LoadDefaultFont(void); extern void UnloadDefaultFont(void); +#endif //---------------------------------------------------------------------------------- // Module Functions Definition //---------------------------------------------------------------------------------- +#if defined(SUPPORT_DEFAULT_FONT) + +// Load raylib default font extern void LoadDefaultFont(void) { + #define BIT_CHECK(a,b) ((a) & (1 << (b))) + // NOTE: Using UTF8 encoding table for Unicode U+0000..U+00FF Basic Latin + Latin-1 Supplement // http://www.utf8-chartable.de/unicode-utf8-table.pl @@ -241,16 +259,23 @@ extern void LoadDefaultFont(void) TraceLog(INFO, "[TEX ID %i] Default font loaded successfully", defaultFont.texture.id); } +// Unload raylib default font extern void UnloadDefaultFont(void) { UnloadTexture(defaultFont.texture); free(defaultFont.chars); } +#endif // SUPPORT_DEFAULT_FONT // Get the default font, useful to be used with extended parameters SpriteFont GetDefaultFont() { +#if defined(SUPPORT_DEFAULT_FONT) return defaultFont; +#else + SpriteFont font = { 0 }; + return font; +#endif } // Load SpriteFont from file into GPU memory (VRAM) @@ -264,10 +289,7 @@ SpriteFont LoadSpriteFont(const char *fileName) SpriteFont spriteFont = { 0 }; // Check file extension - if (strcmp(GetExtension(fileName),"rbmf") == 0) spriteFont = LoadRBMF(fileName); // TODO: DELETE... SOON... - else if (strcmp(GetExtension(fileName),"ttf") == 0) spriteFont = LoadSpriteFontTTF(fileName, DEFAULT_TTF_FONTSIZE, 0, NULL); - else if (strcmp(GetExtension(fileName),"fnt") == 0) spriteFont = LoadBMFont(fileName); - else if (strcmp(GetExtension(fileName),"rres") == 0) + if (IsFileExtension(fileName, ".rres")) { // TODO: Read multiple resource blocks from file (RRES_FONT_IMAGE, RRES_FONT_CHARDATA) RRES rres = LoadResource(fileName, 0); @@ -293,6 +315,12 @@ SpriteFont LoadSpriteFont(const char *fileName) // TODO: Do not free rres.data memory (chars info data!) //UnloadResource(rres[0]); } +#if defined(SUPPORT_FILEFORMAT_TTF) + else if (IsFileExtension(fileName, ".ttf")) spriteFont = LoadSpriteFontEx(fileName, DEFAULT_TTF_FONTSIZE, 0, NULL); +#endif +#if defined(SUPPORT_FILEFORMAT_FNT) + else if (IsFileExtension(fileName, ".fnt")) spriteFont = LoadBMFont(fileName); +#endif else { Image image = LoadImage(fileName); @@ -313,11 +341,12 @@ SpriteFont LoadSpriteFont(const char *fileName) // Load SpriteFont from TTF font file with generation parameters // NOTE: You can pass an array with desired characters, those characters should be available in the font // if array is NULL, default char set is selected 32..126 -SpriteFont LoadSpriteFontTTF(const char *fileName, int fontSize, int charsCount, int *fontChars) +SpriteFont LoadSpriteFontEx(const char *fileName, int fontSize, int charsCount, int *fontChars) { SpriteFont spriteFont = { 0 }; - if (strcmp(GetExtension(fileName),"ttf") == 0) +#if defined(SUPPORT_FILEFORMAT_TTF) + if (IsFileExtension(fileName, ".ttf")) { if ((fontChars == NULL) || (charsCount == 0)) { @@ -331,6 +360,7 @@ SpriteFont LoadSpriteFontTTF(const char *fileName, int fontSize, int charsCount, } else spriteFont = LoadTTF(fileName, fontSize, charsCount, fontChars); } +#endif if (spriteFont.texture.id == 0) { @@ -345,7 +375,7 @@ SpriteFont LoadSpriteFontTTF(const char *fileName, int fontSize, int charsCount, void UnloadSpriteFont(SpriteFont spriteFont) { // NOTE: Make sure spriteFont is not default font (fallback) - if (spriteFont.texture.id != defaultFont.texture.id) + if (spriteFont.texture.id != GetDefaultFont().texture.id) { UnloadTexture(spriteFont.texture); free(spriteFont.chars); @@ -360,7 +390,7 @@ void UnloadSpriteFont(SpriteFont spriteFont) void DrawText(const char *text, int posX, int posY, int fontSize, Color color) { // Check if default font has been loaded - if (defaultFont.texture.id != 0) + if (GetDefaultFont().texture.id != 0) { Vector2 position = { (float)posX, (float)posY }; @@ -413,7 +443,7 @@ void DrawTextEx(SpriteFont spriteFont, const char *text, Vector2 position, float index = GetCharIndex(spriteFont, (int)letter + 64); i++; } - else index = GetCharIndex(spriteFont, (int)text[i]); + else index = GetCharIndex(spriteFont, (unsigned char)text[i]); DrawTexturePro(spriteFont.texture, spriteFont.chars[index].rec, (Rectangle){ position.x + textOffsetX + spriteFont.chars[index].offsetX*scaleFactor, @@ -471,7 +501,7 @@ int MeasureText(const char *text, int fontSize) Vector2 vec = { 0.0f, 0.0f }; // Check if default font has been loaded - if (defaultFont.texture.id != 0) + if (GetDefaultFont().texture.id != 0) { int defaultFontSize = 10; // Default Font chars height in pixel if (fontSize < defaultFontSize) fontSize = defaultFontSize; @@ -688,144 +718,7 @@ static SpriteFont LoadImageFont(Image image, Color key, int firstChar) return spriteFont; } -// Load a rBMF font file (raylib BitMap Font) -static SpriteFont LoadRBMF(const char *fileName) -{ - // rBMF Info Header (16 bytes) - typedef struct { - char id[4]; // rBMF file identifier - char version; // rBMF file version - // 4 MSB --> main version - // 4 LSB --> subversion - char firstChar; // First character in the font - // NOTE: Depending on charDataType, it could be useless - short imgWidth; // Image width - always POT (power-of-two) - short imgHeight; // Image height - always POT (power-of-two) - short numChars; // Number of characters contained - short charHeight; // Characters height - the same for all characters - char compType; // Compression type: - // 4 MSB --> image data compression - // 4 LSB --> chars data compression - char charsDataType; // Char data type provided - } rbmfInfoHeader; - - SpriteFont spriteFont = { 0 }; - - // REMOVE SOON!!! -/* - rbmfInfoHeader rbmfHeader; - unsigned int *rbmfFileData = NULL; - unsigned char *rbmfCharWidthData = NULL; - - int charsDivisor = 1; // Every char is separated from the consecutive by a 1 pixel divisor, horizontally and vertically - - FILE *rbmfFile = fopen(fileName, "rb"); // Define a pointer to bitmap file and open it in read-binary mode - - if (rbmfFile == NULL) - { - TraceLog(WARNING, "[%s] rBMF font file could not be opened, using default font", fileName); - - spriteFont = GetDefaultFont(); - } - else - { - fread(&rbmfHeader, sizeof(rbmfInfoHeader), 1, rbmfFile); - - TraceLog(DEBUG, "[%s] Loading rBMF file, size: %ix%i, numChars: %i, charHeight: %i", fileName, rbmfHeader.imgWidth, rbmfHeader.imgHeight, rbmfHeader.numChars, rbmfHeader.charHeight); - - spriteFont.numChars = (int)rbmfHeader.numChars; - - int numPixelBits = rbmfHeader.imgWidth*rbmfHeader.imgHeight/32; - - rbmfFileData = (unsigned int *)malloc(numPixelBits*sizeof(unsigned int)); - - for (int i = 0; i < numPixelBits; i++) fread(&rbmfFileData[i], sizeof(unsigned int), 1, rbmfFile); - - rbmfCharWidthData = (unsigned char *)malloc(spriteFont.numChars*sizeof(unsigned char)); - - for (int i = 0; i < spriteFont.numChars; i++) fread(&rbmfCharWidthData[i], sizeof(unsigned char), 1, rbmfFile); - - // Re-construct image from rbmfFileData - //----------------------------------------- - Color *imagePixels = (Color *)malloc(rbmfHeader.imgWidth*rbmfHeader.imgHeight*sizeof(Color)); - - for (int i = 0; i < rbmfHeader.imgWidth*rbmfHeader.imgHeight; i++) imagePixels[i] = BLANK; // Initialize array - - int counter = 0; // Font data elements counter - - // Fill image data (convert from bit to pixel!) - for (int i = 0; i < rbmfHeader.imgWidth*rbmfHeader.imgHeight; i += 32) - { - for (int j = 31; j >= 0; j--) - { - if (BIT_CHECK(rbmfFileData[counter], j)) imagePixels[i+j] = WHITE; - } - - counter++; - } - - Image image = LoadImageEx(imagePixels, rbmfHeader.imgWidth, rbmfHeader.imgHeight); - ImageFormat(&image, UNCOMPRESSED_GRAY_ALPHA); - - free(imagePixels); - - TraceLog(DEBUG, "[%s] Image reconstructed correctly, now converting it to texture", fileName); - - // Create spritefont with all data read from rbmf file - spriteFont.texture = LoadTextureFromImage(image); - UnloadImage(image); // Unload image data - - //TraceLog(INFO, "[%s] Starting chars set reconstruction", fileName); - - // Get characters data using rbmfCharWidthData, rbmfHeader.charHeight, charsDivisor, rbmfHeader.numChars - spriteFont.chars = (CharInfo *)malloc(spriteFont.charsCount*sizeof(CharInfo)); - - int currentLine = 0; - int currentPosX = charsDivisor; - int testPosX = charsDivisor; - - for (int i = 0; i < spriteFont.charsCount; i++) - { - spriteFont.chars[i].value = (int)rbmfHeader.firstChar + i; - - spriteFont.chars[i].rec.x = currentPosX; - spriteFont.chars[i].rec.y = charsDivisor + currentLine*((int)rbmfHeader.charHeight + charsDivisor); - spriteFont.chars[i].rec.width = (int)rbmfCharWidthData[i]; - spriteFont.chars[i].rec.height = (int)rbmfHeader.charHeight; - - // NOTE: On image based fonts (XNA style), character offsets and xAdvance are not required (set to 0) - spriteFont.chars[i].offsetX = 0; - spriteFont.chars[i].offsetY = 0; - spriteFont.chars[i].advanceX = 0; - - testPosX += (spriteFont.chars[i].rec.width + charsDivisor); - - if (testPosX > spriteFont.texture.width) - { - currentLine++; - currentPosX = 2*charsDivisor + (int)rbmfCharWidthData[i]; - testPosX = currentPosX; - - spriteFont.chars[i].rec.x = charsDivisor; - spriteFont.chars[i].rec.y = charsDivisor + currentLine*(rbmfHeader.charHeight + charsDivisor); - } - else currentPosX = testPosX; - } - - spriteFont.baseSize = spriteFont.charRecs[0].height; - - TraceLog(INFO, "[%s] rBMF file loaded correctly as SpriteFont", fileName); - } - - fclose(rbmfFile); - - free(rbmfFileData); // Now we can free loaded data from RAM memory - free(rbmfCharWidthData); -*/ - - return spriteFont; -} - +#if defined(SUPPORT_FILEFORMAT_FNT) // Load a BMFont file (AngelCode font file) static SpriteFont LoadBMFont(const char *fileName) { @@ -943,7 +836,9 @@ static SpriteFont LoadBMFont(const char *fileName) return font; } +#endif +#if defined(SUPPORT_FILEFORMAT_TTF) // Generate a sprite font from TTF file data (font size required) // TODO: Review texture packing method and generation (use oversampling) static SpriteFont LoadTTF(const char *fileName, int fontSize, int charsCount, int *fontChars) @@ -1035,4 +930,5 @@ static SpriteFont LoadTTF(const char *fileName, int fontSize, int charsCount, in free(charData); return font; -}
\ No newline at end of file +} +#endif |