--- /dev/null
+/**********************************************************************************************
+*
+* raylib.text - Basic functions to load Fonts and draw Text
+*
+* CONFIGURATION:
+*
+* #define SUPPORT_FILEFORMAT_FNT
+* #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 SUPPORT_DEFAULT_FONT
+* Load default raylib font on initialization to be used by DrawText() and MeasureText().
+* If no default font loaded, DrawTextEx() and MeasureTextEx() are required.
+*
+* #define TEXTSPLIT_MAX_TEXT_BUFFER_LENGTH
+* TextSplit() function static buffer max size
+*
+* #define MAX_TEXTSPLIT_COUNT
+* TextSplit() function static substrings pointers array (pointing to static buffer)
+*
+*
+* DEPENDENCIES:
+* stb_truetype - Load TTF file and rasterize characters data
+* stb_rect_pack - Rectangles packing algorythms, required for font atlas generation
+*
+*
+* LICENSE: zlib/libpng
+*
+* Copyright (c) 2013-2021 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.
+*
+* Permission is granted to anyone to use this software for any purpose, including commercial
+* applications, and to alter it and redistribute it freely, subject to the following restrictions:
+*
+* 1. The origin of this software must not be misrepresented; you must not claim that you
+* wrote the original software. If you use this software in a product, an acknowledgment
+* in the product documentation would be appreciated but is not required.
+*
+* 2. Altered source versions must be plainly marked as such, and must not be misrepresented
+* as being the original software.
+*
+* 3. This notice may not be removed or altered from any source distribution.
+*
+**********************************************************************************************/
+
+#include "raylib.h" // Declares module functions
+
+// Check if config flags have been externally provided on compilation line
+#if !defined(EXTERNAL_CONFIG_FLAGS)
+ #include "config.h" // Defines module configuration flags
+#endif
+
+#include <stdlib.h> // Required for: malloc(), free()
+#include <stdio.h> // Required for: vsprintf()
+#include <string.h> // Required for: strcmp(), strstr(), strcpy(), strncpy() [Used in TextReplace()], sscanf() [Used in LoadBMFont()]
+#include <stdarg.h> // Required for: va_list, va_start(), vsprintf(), va_end() [Used in TextFormat()]
+#include <ctype.h> // Requried for: toupper(), tolower() [Used in TextToUpper(), TextToLower()]
+
+#include "utils.h" // Required for: LoadFileText()
+
+#if defined(SUPPORT_FILEFORMAT_TTF)
+ #define STB_RECT_PACK_IMPLEMENTATION
+ #include "external/stb_rect_pack.h" // Required for: ttf font rectangles packaging
+
+ #define STBTT_STATIC
+ #define STB_TRUETYPE_IMPLEMENTATION
+ #include "external/stb_truetype.h" // Required for: ttf font data reading
+#endif
+
+//----------------------------------------------------------------------------------
+// Defines and Macros
+//----------------------------------------------------------------------------------
+#ifndef MAX_TEXT_BUFFER_LENGTH
+ #define MAX_TEXT_BUFFER_LENGTH 1024 // Size of internal static buffers used on some functions:
+ // TextFormat(), TextSubtext(), TextToUpper(), TextToLower(), TextToPascal(), TextSplit()
+#endif
+#ifndef MAX_TEXT_UNICODE_CHARS
+ #define MAX_TEXT_UNICODE_CHARS 512 // Maximum number of unicode codepoints: GetCodepoints()
+#endif
+#ifndef MAX_TEXTSPLIT_COUNT
+ #define MAX_TEXTSPLIT_COUNT 128 // Maximum number of substrings to split: TextSplit()
+#endif
+
+//----------------------------------------------------------------------------------
+// Types and Structures Definition
+//----------------------------------------------------------------------------------
+// ...
+
+//----------------------------------------------------------------------------------
+// Global variables
+//----------------------------------------------------------------------------------
+#if defined(SUPPORT_DEFAULT_FONT)
+// Default font provided by raylib
+// NOTE: Default font is loaded on InitWindow() and disposed on CloseWindow() [module: core]
+static Font defaultFont = { 0 };
+#endif
+
+//----------------------------------------------------------------------------------
+// Other Modules Functions Declaration (required by text)
+//----------------------------------------------------------------------------------
+//...
+
+//----------------------------------------------------------------------------------
+// Module specific Functions Declaration
+//----------------------------------------------------------------------------------
+#if defined(SUPPORT_FILEFORMAT_FNT)
+static Font LoadBMFont(const char *fileName); // Load a BMFont file (AngelCode font file)
+#endif
+
+#if defined(SUPPORT_DEFAULT_FONT)
+extern void LoadFontDefault(void);
+extern void UnloadFontDefault(void);
+#endif
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition
+//----------------------------------------------------------------------------------
+#if defined(SUPPORT_DEFAULT_FONT)
+
+// Load raylib default font
+extern void LoadFontDefault(void)
+{
+ #define BIT_CHECK(a,b) ((a) & (1u << (b)))
+
+ // NOTE: Using UTF8 encoding table for Unicode U+0000..U+00FF Basic Latin + Latin-1 Supplement
+ // Ref: http://www.utf8-chartable.de/unicode-utf8-table.pl
+
+ defaultFont.charsCount = 224; // Number of chars included in our default font
+ defaultFont.charsPadding = 0; // Characters padding
+
+ // Default font is directly defined here (data generated from a sprite font image)
+ // This way, we reconstruct Font without creating large global variables
+ // This data is automatically allocated to Stack and automatically deallocated at the end of this function
+ unsigned int defaultFontData[512] = {
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00200020, 0x0001b000, 0x00000000, 0x00000000, 0x8ef92520, 0x00020a00, 0x7dbe8000, 0x1f7df45f,
+ 0x4a2bf2a0, 0x0852091e, 0x41224000, 0x10041450, 0x2e292020, 0x08220812, 0x41222000, 0x10041450, 0x10f92020, 0x3efa084c, 0x7d22103c, 0x107df7de,
+ 0xe8a12020, 0x08220832, 0x05220800, 0x10450410, 0xa4a3f000, 0x08520832, 0x05220400, 0x10450410, 0xe2f92020, 0x0002085e, 0x7d3e0281, 0x107df41f,
+ 0x00200000, 0x8001b000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0xc0000fbe, 0xfbf7e00f, 0x5fbf7e7d, 0x0050bee8, 0x440808a2, 0x0a142fe8, 0x50810285, 0x0050a048,
+ 0x49e428a2, 0x0a142828, 0x40810284, 0x0048a048, 0x10020fbe, 0x09f7ebaf, 0xd89f3e84, 0x0047a04f, 0x09e48822, 0x0a142aa1, 0x50810284, 0x0048a048,
+ 0x04082822, 0x0a142fa0, 0x50810285, 0x0050a248, 0x00008fbe, 0xfbf42021, 0x5f817e7d, 0x07d09ce8, 0x00008000, 0x00000fe0, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x000c0180,
+ 0xdfbf4282, 0x0bfbf7ef, 0x42850505, 0x004804bf, 0x50a142c6, 0x08401428, 0x42852505, 0x00a808a0, 0x50a146aa, 0x08401428, 0x42852505, 0x00081090,
+ 0x5fa14a92, 0x0843f7e8, 0x7e792505, 0x00082088, 0x40a15282, 0x08420128, 0x40852489, 0x00084084, 0x40a16282, 0x0842022a, 0x40852451, 0x00088082,
+ 0xc0bf4282, 0xf843f42f, 0x7e85fc21, 0x3e0900bf, 0x00000000, 0x00000004, 0x00000000, 0x000c0180, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x04000402, 0x41482000, 0x00000000, 0x00000800,
+ 0x04000404, 0x4100203c, 0x00000000, 0x00000800, 0xf7df7df0, 0x514bef85, 0xbefbefbe, 0x04513bef, 0x14414500, 0x494a2885, 0xa28a28aa, 0x04510820,
+ 0xf44145f0, 0x474a289d, 0xa28a28aa, 0x04510be0, 0x14414510, 0x494a2884, 0xa28a28aa, 0x02910a00, 0xf7df7df0, 0xd14a2f85, 0xbefbe8aa, 0x011f7be0,
+ 0x00000000, 0x00400804, 0x20080000, 0x00000000, 0x00000000, 0x00600f84, 0x20080000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0xac000000, 0x00000f01, 0x00000000, 0x00000000, 0x24000000, 0x00000f01, 0x00000000, 0x06000000, 0x24000000, 0x00000f01, 0x00000000, 0x09108000,
+ 0x24fa28a2, 0x00000f01, 0x00000000, 0x013e0000, 0x2242252a, 0x00000f52, 0x00000000, 0x038a8000, 0x2422222a, 0x00000f29, 0x00000000, 0x010a8000,
+ 0x2412252a, 0x00000f01, 0x00000000, 0x010a8000, 0x24fbe8be, 0x00000f01, 0x00000000, 0x0ebe8000, 0xac020000, 0x00000f01, 0x00000000, 0x00048000,
+ 0x0003e000, 0x00000f00, 0x00000000, 0x00008000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000038, 0x8443b80e, 0x00203a03,
+ 0x02bea080, 0xf0000020, 0xc452208a, 0x04202b02, 0xf8029122, 0x07f0003b, 0xe44b388e, 0x02203a02, 0x081e8a1c, 0x0411e92a, 0xf4420be0, 0x01248202,
+ 0xe8140414, 0x05d104ba, 0xe7c3b880, 0x00893a0a, 0x283c0e1c, 0x04500902, 0xc4400080, 0x00448002, 0xe8208422, 0x04500002, 0x80400000, 0x05200002,
+ 0x083e8e00, 0x04100002, 0x804003e0, 0x07000042, 0xf8008400, 0x07f00003, 0x80400000, 0x04000022, 0x00000000, 0x00000000, 0x80400000, 0x04000002,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00800702, 0x1848a0c2, 0x84010000, 0x02920921, 0x01042642, 0x00005121, 0x42023f7f, 0x00291002,
+ 0xefc01422, 0x7efdfbf7, 0xefdfa109, 0x03bbbbf7, 0x28440f12, 0x42850a14, 0x20408109, 0x01111010, 0x28440408, 0x42850a14, 0x2040817f, 0x01111010,
+ 0xefc78204, 0x7efdfbf7, 0xe7cf8109, 0x011111f3, 0x2850a932, 0x42850a14, 0x2040a109, 0x01111010, 0x2850b840, 0x42850a14, 0xefdfbf79, 0x03bbbbf7,
+ 0x001fa020, 0x00000000, 0x00001000, 0x00000000, 0x00002070, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x08022800, 0x00012283, 0x02430802, 0x01010001, 0x8404147c, 0x20000144, 0x80048404, 0x00823f08, 0xdfbf4284, 0x7e03f7ef, 0x142850a1, 0x0000210a,
+ 0x50a14684, 0x528a1428, 0x142850a1, 0x03efa17a, 0x50a14a9e, 0x52521428, 0x142850a1, 0x02081f4a, 0x50a15284, 0x4a221428, 0xf42850a1, 0x03efa14b,
+ 0x50a16284, 0x4a521428, 0x042850a1, 0x0228a17a, 0xdfbf427c, 0x7e8bf7ef, 0xf7efdfbf, 0x03efbd0b, 0x00000000, 0x04000000, 0x00000000, 0x00000008,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00200508, 0x00840400, 0x11458122, 0x00014210,
+ 0x00514294, 0x51420800, 0x20a22a94, 0x0050a508, 0x00200000, 0x00000000, 0x00050000, 0x08000000, 0xfefbefbe, 0xfbefbefb, 0xfbeb9114, 0x00fbefbe,
+ 0x20820820, 0x8a28a20a, 0x8a289114, 0x3e8a28a2, 0xfefbefbe, 0xfbefbe0b, 0x8a289114, 0x008a28a2, 0x228a28a2, 0x08208208, 0x8a289114, 0x088a28a2,
+ 0xfefbefbe, 0xfbefbefb, 0xfa2f9114, 0x00fbefbe, 0x00000000, 0x00000040, 0x00000000, 0x00000000, 0x00000000, 0x00000020, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00210100, 0x00000004, 0x00000000, 0x00000000, 0x14508200, 0x00001402, 0x00000000, 0x00000000,
+ 0x00000010, 0x00000020, 0x00000000, 0x00000000, 0xa28a28be, 0x00002228, 0x00000000, 0x00000000, 0xa28a28aa, 0x000022e8, 0x00000000, 0x00000000,
+ 0xa28a28aa, 0x000022a8, 0x00000000, 0x00000000, 0xa28a28aa, 0x000022e8, 0x00000000, 0x00000000, 0xbefbefbe, 0x00003e2f, 0x00000000, 0x00000000,
+ 0x00000004, 0x00002028, 0x00000000, 0x00000000, 0x80000000, 0x00003e0f, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000 };
+
+ int charsHeight = 10;
+ int charsDivisor = 1; // Every char is separated from the consecutive by a 1 pixel divisor, horizontally and vertically
+
+ int charsWidth[224] = { 3, 1, 4, 6, 5, 7, 6, 2, 3, 3, 5, 5, 2, 4, 1, 7, 5, 2, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 3, 4, 3, 6,
+ 7, 6, 6, 6, 6, 6, 6, 6, 6, 3, 5, 6, 5, 7, 6, 6, 6, 6, 6, 6, 7, 6, 7, 7, 6, 6, 6, 2, 7, 2, 3, 5,
+ 2, 5, 5, 5, 5, 5, 4, 5, 5, 1, 2, 5, 2, 5, 5, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 5, 3, 1, 3, 4, 4,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 5, 5, 5, 7, 1, 5, 3, 7, 3, 5, 4, 1, 7, 4, 3, 5, 3, 3, 2, 5, 6, 1, 2, 2, 3, 5, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 7, 6, 6, 6, 6, 6, 3, 3, 3, 3, 7, 6, 6, 6, 6, 6, 6, 5, 6, 6, 6, 6, 6, 6, 4, 6,
+ 5, 5, 5, 5, 5, 5, 9, 5, 5, 5, 5, 5, 2, 2, 3, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 5 };
+
+ // Re-construct image from defaultFontData and generate OpenGL texture
+ //----------------------------------------------------------------------
+ Image imFont = {
+ .data = calloc(128*128, 2), // 2 bytes per pixel (gray + alpha)
+ .width = 128,
+ .height = 128,
+ .format = PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA,
+ .mipmaps = 1
+ };
+
+ // Fill image.data with defaultFontData (convert from bit to pixel!)
+ for (int i = 0, counter = 0; i < imFont.width*imFont.height; i += 32)
+ {
+ for (int j = 31; j >= 0; j--)
+ {
+ if (BIT_CHECK(defaultFontData[counter], j))
+ {
+ // NOTE: We are unreferencing data as short, so,
+ // we must consider data as little-endian order (alpha + gray)
+ ((unsigned short *)imFont.data)[i + j] = 0xffff;
+ }
+ else ((unsigned short *)imFont.data)[i + j] = 0x00ff;
+ }
+
+ counter++;
+ }
+
+ defaultFont.texture = LoadTextureFromImage(imFont);
+
+ // Reconstruct charSet using charsWidth[], charsHeight, charsDivisor, charsCount
+ //------------------------------------------------------------------------------
+
+ // Allocate space for our characters info data
+ // NOTE: This memory should be freed at end! --> CloseWindow()
+ defaultFont.chars = (CharInfo *)RL_MALLOC(defaultFont.charsCount*sizeof(CharInfo));
+ defaultFont.recs = (Rectangle *)RL_MALLOC(defaultFont.charsCount*sizeof(Rectangle));
+
+ int currentLine = 0;
+ int currentPosX = charsDivisor;
+ int testPosX = charsDivisor;
+
+ for (int i = 0; i < defaultFont.charsCount; i++)
+ {
+ defaultFont.chars[i].value = 32 + i; // First char is 32
+
+ defaultFont.recs[i].x = (float)currentPosX;
+ defaultFont.recs[i].y = (float)(charsDivisor + currentLine*(charsHeight + charsDivisor));
+ defaultFont.recs[i].width = (float)charsWidth[i];
+ defaultFont.recs[i].height = (float)charsHeight;
+
+ testPosX += (int)(defaultFont.recs[i].width + (float)charsDivisor);
+
+ if (testPosX >= defaultFont.texture.width)
+ {
+ currentLine++;
+ currentPosX = 2*charsDivisor + charsWidth[i];
+ testPosX = currentPosX;
+
+ defaultFont.recs[i].x = (float)charsDivisor;
+ defaultFont.recs[i].y = (float)(charsDivisor + currentLine*(charsHeight + charsDivisor));
+ }
+ else currentPosX = testPosX;
+
+ // NOTE: On default font character offsets and xAdvance are not required
+ defaultFont.chars[i].offsetX = 0;
+ defaultFont.chars[i].offsetY = 0;
+ defaultFont.chars[i].advanceX = 0;
+
+ // Fill character image data from fontClear data
+ defaultFont.chars[i].image = ImageFromImage(imFont, defaultFont.recs[i]);
+ }
+
+ UnloadImage(imFont);
+
+ defaultFont.baseSize = (int)defaultFont.recs[0].height;
+
+ TRACELOG(LOG_INFO, "FONT: Default font loaded successfully");
+}
+
+// Unload raylib default font
+extern void UnloadFontDefault(void)
+{
+ for (int i = 0; i < defaultFont.charsCount; i++) UnloadImage(defaultFont.chars[i].image);
+ UnloadTexture(defaultFont.texture);
+ RL_FREE(defaultFont.chars);
+ RL_FREE(defaultFont.recs);
+}
+#endif // SUPPORT_DEFAULT_FONT
+
+// Get the default font, useful to be used with extended parameters
+Font GetFontDefault()
+{
+#if defined(SUPPORT_DEFAULT_FONT)
+ return defaultFont;
+#else
+ Font font = { 0 };
+ return font;
+#endif
+}
+
+// Load Font from file into GPU memory (VRAM)
+Font LoadFont(const char *fileName)
+{
+ // Default values for ttf font generation
+#ifndef FONT_TTF_DEFAULT_SIZE
+ #define FONT_TTF_DEFAULT_SIZE 32 // TTF font generation default char size (char-height)
+#endif
+#ifndef FONT_TTF_DEFAULT_NUMCHARS
+ #define FONT_TTF_DEFAULT_NUMCHARS 95 // TTF font generation default charset: 95 glyphs (ASCII 32..126)
+#endif
+#ifndef FONT_TTF_DEFAULT_FIRST_CHAR
+ #define FONT_TTF_DEFAULT_FIRST_CHAR 32 // TTF font generation default first char for image sprite font (32-Space)
+#endif
+#ifndef FONT_TTF_DEFAULT_CHARS_PADDING
+ #define FONT_TTF_DEFAULT_CHARS_PADDING 4 // TTF font generation default chars padding
+#endif
+
+ Font font = { 0 };
+
+#if defined(SUPPORT_FILEFORMAT_TTF)
+ if (IsFileExtension(fileName, ".ttf;.otf")) font = LoadFontEx(fileName, FONT_TTF_DEFAULT_SIZE, NULL, FONT_TTF_DEFAULT_NUMCHARS);
+ else
+#endif
+#if defined(SUPPORT_FILEFORMAT_FNT)
+ if (IsFileExtension(fileName, ".fnt")) font = LoadBMFont(fileName);
+ else
+#endif
+ {
+ Image image = LoadImage(fileName);
+ if (image.data != NULL) font = LoadFontFromImage(image, MAGENTA, FONT_TTF_DEFAULT_FIRST_CHAR);
+ UnloadImage(image);
+ }
+
+ if (font.texture.id == 0)
+ {
+ TRACELOG(LOG_WARNING, "FONT: [%s] Failed to load font texture -> Using default font", fileName);
+ font = GetFontDefault();
+ }
+ else SetTextureFilter(font.texture, TEXTURE_FILTER_POINT); // By default we set point filter (best performance)
+
+ return font;
+}
+
+// Load Font 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
+Font LoadFontEx(const char *fileName, int fontSize, int *fontChars, int charsCount)
+{
+ Font font = { 0 };
+
+ // Loading file to memory
+ unsigned int fileSize = 0;
+ unsigned char *fileData = LoadFileData(fileName, &fileSize);
+
+ if (fileData != NULL)
+ {
+ // Loading font from memory data
+ font = LoadFontFromMemory(GetFileExtension(fileName), fileData, fileSize, fontSize, fontChars, charsCount);
+
+ RL_FREE(fileData);
+ }
+ else font = GetFontDefault();
+
+ return font;
+}
+
+// Load an Image font file (XNA style)
+Font LoadFontFromImage(Image image, Color key, int firstChar)
+{
+#ifndef MAX_GLYPHS_FROM_IMAGE
+ #define MAX_GLYPHS_FROM_IMAGE 256 // Maximum number of glyphs supported on image scan
+#endif
+
+ #define COLOR_EQUAL(col1, col2) ((col1.r == col2.r)&&(col1.g == col2.g)&&(col1.b == col2.b)&&(col1.a == col2.a))
+
+ int charSpacing = 0;
+ int lineSpacing = 0;
+
+ int x = 0;
+ int y = 0;
+
+ // We allocate a temporal arrays for chars data measures,
+ // once we get the actual number of chars, we copy data to a sized arrays
+ int tempCharValues[MAX_GLYPHS_FROM_IMAGE];
+ Rectangle tempCharRecs[MAX_GLYPHS_FROM_IMAGE];
+
+ Color *pixels = LoadImageColors(image);
+
+ // Parse image data to get charSpacing and lineSpacing
+ for (y = 0; y < image.height; y++)
+ {
+ for (x = 0; x < image.width; x++)
+ {
+ if (!COLOR_EQUAL(pixels[y*image.width + x], key)) break;
+ }
+
+ if (!COLOR_EQUAL(pixels[y*image.width + x], key)) break;
+ }
+
+ charSpacing = x;
+ lineSpacing = y;
+
+ int charHeight = 0;
+ int j = 0;
+
+ while (!COLOR_EQUAL(pixels[(lineSpacing + j)*image.width + charSpacing], key)) j++;
+
+ charHeight = j;
+
+ // Check array values to get characters: value, x, y, w, h
+ int index = 0;
+ int lineToRead = 0;
+ int xPosToRead = charSpacing;
+
+ // Parse image data to get rectangle sizes
+ while ((lineSpacing + lineToRead*(charHeight + lineSpacing)) < image.height)
+ {
+ while ((xPosToRead < image.width) &&
+ !COLOR_EQUAL((pixels[(lineSpacing + (charHeight+lineSpacing)*lineToRead)*image.width + xPosToRead]), key))
+ {
+ tempCharValues[index] = firstChar + index;
+
+ tempCharRecs[index].x = (float)xPosToRead;
+ tempCharRecs[index].y = (float)(lineSpacing + lineToRead*(charHeight + lineSpacing));
+ tempCharRecs[index].height = (float)charHeight;
+
+ int charWidth = 0;
+
+ while (!COLOR_EQUAL(pixels[(lineSpacing + (charHeight+lineSpacing)*lineToRead)*image.width + xPosToRead + charWidth], key)) charWidth++;
+
+ tempCharRecs[index].width = (float)charWidth;
+
+ index++;
+
+ xPosToRead += (charWidth + charSpacing);
+ }
+
+ lineToRead++;
+ xPosToRead = charSpacing;
+ }
+
+ // NOTE: We need to remove key color borders from image to avoid weird
+ // artifacts on texture scaling when using TEXTURE_FILTER_BILINEAR or TEXTURE_FILTER_TRILINEAR
+ for (int i = 0; i < image.height*image.width; i++) if (COLOR_EQUAL(pixels[i], key)) pixels[i] = BLANK;
+
+ // Create a new image with the processed color data (key color replaced by BLANK)
+ Image fontClear = {
+ .data = pixels,
+ .width = image.width,
+ .height = image.height,
+ .format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8,
+ .mipmaps = 1
+ };
+
+ // Create spritefont with all data parsed from image
+ Font font = { 0 };
+
+ font.texture = LoadTextureFromImage(fontClear); // Convert processed image to OpenGL texture
+ font.charsCount = index;
+ font.charsPadding = 0;
+
+ // We got tempCharValues and tempCharsRecs populated with chars data
+ // Now we move temp data to sized charValues and charRecs arrays
+ font.chars = (CharInfo *)RL_MALLOC(font.charsCount*sizeof(CharInfo));
+ font.recs = (Rectangle *)RL_MALLOC(font.charsCount*sizeof(Rectangle));
+
+ for (int i = 0; i < font.charsCount; i++)
+ {
+ font.chars[i].value = tempCharValues[i];
+
+ // Get character rectangle in the font atlas texture
+ font.recs[i] = tempCharRecs[i];
+
+ // NOTE: On image based fonts (XNA style), character offsets and xAdvance are not required (set to 0)
+ font.chars[i].offsetX = 0;
+ font.chars[i].offsetY = 0;
+ font.chars[i].advanceX = 0;
+
+ // Fill character image data from fontClear data
+ font.chars[i].image = ImageFromImage(fontClear, tempCharRecs[i]);
+ }
+
+ UnloadImage(fontClear); // Unload processed image once converted to texture
+
+ font.baseSize = (int)font.recs[0].height;
+
+ return font;
+}
+
+// Load font from memory buffer, fileType refers to extension: i.e. ".ttf"
+Font LoadFontFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int fontSize, int *fontChars, int charsCount)
+{
+ Font font = { 0 };
+
+ char fileExtLower[16] = { 0 };
+ strcpy(fileExtLower, TextToLower(fileType));
+
+#if defined(SUPPORT_FILEFORMAT_TTF)
+ if (TextIsEqual(fileExtLower, ".ttf") ||
+ TextIsEqual(fileExtLower, ".otf"))
+ {
+ font.baseSize = fontSize;
+ font.charsCount = (charsCount > 0)? charsCount : 95;
+ font.charsPadding = 0;
+ font.chars = LoadFontData(fileData, dataSize, font.baseSize, fontChars, font.charsCount, FONT_DEFAULT);
+
+ if (font.chars != NULL)
+ {
+ font.charsPadding = FONT_TTF_DEFAULT_CHARS_PADDING;
+
+ Image atlas = GenImageFontAtlas(font.chars, &font.recs, font.charsCount, font.baseSize, font.charsPadding, 0);
+ font.texture = LoadTextureFromImage(atlas);
+
+ // Update chars[i].image to use alpha, required to be used on ImageDrawText()
+ for (int i = 0; i < font.charsCount; i++)
+ {
+ UnloadImage(font.chars[i].image);
+ font.chars[i].image = ImageFromImage(atlas, font.recs[i]);
+ }
+
+ UnloadImage(atlas);
+ }
+ else font = GetFontDefault();
+ }
+#else
+ font = GetFontDefault();
+#endif
+
+ return font;
+}
+
+// Load font data for further use
+// NOTE: Requires TTF font memory data and can generate SDF data
+CharInfo *LoadFontData(const unsigned char *fileData, int dataSize, int fontSize, int *fontChars, int charsCount, int type)
+{
+ // NOTE: Using some SDF generation default values,
+ // trades off precision with ability to handle *smaller* sizes
+#ifndef FONT_SDF_CHAR_PADDING
+ #define FONT_SDF_CHAR_PADDING 4 // SDF font generation char padding
+#endif
+#ifndef FONT_SDF_ON_EDGE_VALUE
+ #define FONT_SDF_ON_EDGE_VALUE 128 // SDF font generation on edge value
+#endif
+#ifndef FONT_SDF_PIXEL_DIST_SCALE
+ #define FONT_SDF_PIXEL_DIST_SCALE 64.0f // SDF font generation pixel distance scale
+#endif
+#ifndef FONT_BITMAP_ALPHA_THRESHOLD
+ #define FONT_BITMAP_ALPHA_THRESHOLD 80 // Bitmap (B&W) font generation alpha threshold
+#endif
+
+ CharInfo *chars = NULL;
+
+#if defined(SUPPORT_FILEFORMAT_TTF)
+ // Load font data (including pixel data) from TTF memory file
+ // NOTE: Loaded information should be enough to generate font image atlas, using any packaging method
+ if (fileData != NULL)
+ {
+ int genFontChars = false;
+ stbtt_fontinfo fontInfo = { 0 };
+
+ if (stbtt_InitFont(&fontInfo, (unsigned char *)fileData, 0)) // Init font for data reading
+ {
+ // Calculate font scale factor
+ float scaleFactor = stbtt_ScaleForPixelHeight(&fontInfo, (float)fontSize);
+
+ // Calculate font basic metrics
+ // NOTE: ascent is equivalent to font baseline
+ int ascent, descent, lineGap;
+ stbtt_GetFontVMetrics(&fontInfo, &ascent, &descent, &lineGap);
+
+ // In case no chars count provided, default to 95
+ charsCount = (charsCount > 0)? charsCount : 95;
+
+ // Fill fontChars in case not provided externally
+ // NOTE: By default we fill charsCount consecutevely, starting at 32 (Space)
+
+ if (fontChars == NULL)
+ {
+ fontChars = (int *)RL_MALLOC(charsCount*sizeof(int));
+ for (int i = 0; i < charsCount; i++) fontChars[i] = i + 32;
+ genFontChars = true;
+ }
+
+ chars = (CharInfo *)RL_MALLOC(charsCount*sizeof(CharInfo));
+
+ // NOTE: Using simple packaging, one char after another
+ for (int i = 0; i < charsCount; i++)
+ {
+ int chw = 0, chh = 0; // Character width and height (on generation)
+ int ch = fontChars[i]; // Character value to get info for
+ chars[i].value = ch;
+
+ // Render a unicode codepoint to a bitmap
+ // stbtt_GetCodepointBitmap() -- allocates and returns a bitmap
+ // stbtt_GetCodepointBitmapBox() -- how big the bitmap must be
+ // stbtt_MakeCodepointBitmap() -- renders into bitmap you provide
+
+ if (type != FONT_SDF) chars[i].image.data = stbtt_GetCodepointBitmap(&fontInfo, scaleFactor, scaleFactor, ch, &chw, &chh, &chars[i].offsetX, &chars[i].offsetY);
+ else if (ch != 32) chars[i].image.data = stbtt_GetCodepointSDF(&fontInfo, scaleFactor, ch, FONT_SDF_CHAR_PADDING, FONT_SDF_ON_EDGE_VALUE, FONT_SDF_PIXEL_DIST_SCALE, &chw, &chh, &chars[i].offsetX, &chars[i].offsetY);
+ else chars[i].image.data = NULL;
+
+ stbtt_GetCodepointHMetrics(&fontInfo, ch, &chars[i].advanceX, NULL);
+ chars[i].advanceX = (int)((float)chars[i].advanceX*scaleFactor);
+
+ // Load characters images
+ chars[i].image.width = chw;
+ chars[i].image.height = chh;
+ chars[i].image.mipmaps = 1;
+ chars[i].image.format = PIXELFORMAT_UNCOMPRESSED_GRAYSCALE;
+
+ chars[i].offsetY += (int)((float)ascent*scaleFactor);
+
+ // NOTE: We create an empty image for space character, it could be further required for atlas packing
+ if (ch == 32)
+ {
+ Image imSpace = {
+ .data = calloc(chars[i].advanceX*fontSize, 2),
+ .width = chars[i].advanceX,
+ .height = fontSize,
+ .format = PIXELFORMAT_UNCOMPRESSED_GRAYSCALE,
+ .mipmaps = 1
+ };
+
+ chars[i].image = imSpace;
+ }
+
+ if (type == FONT_BITMAP)
+ {
+ // Aliased bitmap (black & white) font generation, avoiding anti-aliasing
+ // NOTE: For optimum results, bitmap font should be generated at base pixel size
+ for (int p = 0; p < chw*chh; p++)
+ {
+ if (((unsigned char *)chars[i].image.data)[p] < FONT_BITMAP_ALPHA_THRESHOLD) ((unsigned char *)chars[i].image.data)[p] = 0;
+ else ((unsigned char *)chars[i].image.data)[p] = 255;
+ }
+ }
+
+ // Get bounding box for character (may be offset to account for chars that dip above or below the line)
+ /*
+ int chX1, chY1, chX2, chY2;
+ stbtt_GetCodepointBitmapBox(&fontInfo, ch, scaleFactor, scaleFactor, &chX1, &chY1, &chX2, &chY2);
+
+ TRACELOGD("FONT: Character box measures: %i, %i, %i, %i", chX1, chY1, chX2 - chX1, chY2 - chY1);
+ TRACELOGD("FONT: Character offsetY: %i", (int)((float)ascent*scaleFactor) + chY1);
+ */
+ }
+ }
+ else TRACELOG(LOG_WARNING, "FONT: Failed to process TTF font data");
+
+ if (genFontChars) RL_FREE(fontChars);
+ }
+#endif
+
+ return chars;
+}
+
+// Generate image font atlas using chars info
+// NOTE: Packing method: 0-Default, 1-Skyline
+#if defined(SUPPORT_FILEFORMAT_TTF)
+Image GenImageFontAtlas(const CharInfo *chars, Rectangle **charRecs, int charsCount, int fontSize, int padding, int packMethod)
+{
+ Image atlas = { 0 };
+
+ if (chars == NULL)
+ {
+ TraceLog(LOG_WARNING, "FONT: Provided chars info not valid, returning empty image atlas");
+ return atlas;
+ }
+
+ *charRecs = NULL;
+
+ // In case no chars count provided we suppose default of 95
+ charsCount = (charsCount > 0)? charsCount : 95;
+
+ // NOTE: Rectangles memory is loaded here!
+ Rectangle *recs = (Rectangle *)RL_MALLOC(charsCount*sizeof(Rectangle));
+
+ // Calculate image size based on required pixel area
+ // NOTE 1: Image is forced to be squared and POT... very conservative!
+ // NOTE 2: SDF font characters already contain an internal padding,
+ // so image size would result bigger than default font type
+ float requiredArea = 0;
+ for (int i = 0; i < charsCount; i++) requiredArea += ((chars[i].image.width + 2*padding)*(chars[i].image.height + 2*padding));
+ float guessSize = sqrtf(requiredArea)*1.3f;
+ int imageSize = (int)powf(2, ceilf(logf((float)guessSize)/logf(2))); // Calculate next POT
+
+ atlas.width = imageSize; // Atlas bitmap width
+ atlas.height = imageSize; // Atlas bitmap height
+ atlas.data = (unsigned char *)RL_CALLOC(1, atlas.width*atlas.height); // Create a bitmap to store characters (8 bpp)
+ atlas.format = PIXELFORMAT_UNCOMPRESSED_GRAYSCALE;
+ atlas.mipmaps = 1;
+
+ // DEBUG: We can see padding in the generated image setting a gray background...
+ //for (int i = 0; i < atlas.width*atlas.height; i++) ((unsigned char *)atlas.data)[i] = 100;
+
+ if (packMethod == 0) // Use basic packing algorythm
+ {
+ int offsetX = padding;
+ int offsetY = padding;
+
+ // NOTE: Using simple packaging, one char after another
+ for (int i = 0; i < charsCount; i++)
+ {
+ // Copy pixel data from fc.data to atlas
+ for (int y = 0; y < chars[i].image.height; y++)
+ {
+ for (int x = 0; x < chars[i].image.width; x++)
+ {
+ ((unsigned char *)atlas.data)[(offsetY + y)*atlas.width + (offsetX + x)] = ((unsigned char *)chars[i].image.data)[y*chars[i].image.width + x];
+ }
+ }
+
+ // Fill chars rectangles in atlas info
+ recs[i].x = (float)offsetX;
+ recs[i].y = (float)offsetY;
+ recs[i].width = (float)chars[i].image.width;
+ recs[i].height = (float)chars[i].image.height;
+
+ // Move atlas position X for next character drawing
+ offsetX += (chars[i].image.width + 2*padding);
+
+ if (offsetX >= (atlas.width - chars[i].image.width - 2*padding))
+ {
+ offsetX = padding;
+
+ // NOTE: Be careful on offsetY for SDF fonts, by default SDF
+ // use an internal padding of 4 pixels, it means char rectangle
+ // height is bigger than fontSize, it could be up to (fontSize + 8)
+ offsetY += (fontSize + 2*padding);
+
+ if (offsetY > (atlas.height - fontSize - padding)) break;
+ }
+ }
+ }
+ else if (packMethod == 1) // Use Skyline rect packing algorythm (stb_pack_rect)
+ {
+ stbrp_context *context = (stbrp_context *)RL_MALLOC(sizeof(*context));
+ stbrp_node *nodes = (stbrp_node *)RL_MALLOC(charsCount*sizeof(*nodes));
+
+ stbrp_init_target(context, atlas.width, atlas.height, nodes, charsCount);
+ stbrp_rect *rects = (stbrp_rect *)RL_MALLOC(charsCount*sizeof(stbrp_rect));
+
+ // Fill rectangles for packaging
+ for (int i = 0; i < charsCount; i++)
+ {
+ rects[i].id = i;
+ rects[i].w = chars[i].image.width + 2*padding;
+ rects[i].h = chars[i].image.height + 2*padding;
+ }
+
+ // Package rectangles into atlas
+ stbrp_pack_rects(context, rects, charsCount);
+
+ for (int i = 0; i < charsCount; i++)
+ {
+ // It return char rectangles in atlas
+ recs[i].x = rects[i].x + (float)padding;
+ recs[i].y = rects[i].y + (float)padding;
+ recs[i].width = (float)chars[i].image.width;
+ recs[i].height = (float)chars[i].image.height;
+
+ if (rects[i].was_packed)
+ {
+ // Copy pixel data from fc.data to atlas
+ for (int y = 0; y < chars[i].image.height; y++)
+ {
+ for (int x = 0; x < chars[i].image.width; x++)
+ {
+ ((unsigned char *)atlas.data)[(rects[i].y + padding + y)*atlas.width + (rects[i].x + padding + x)] = ((unsigned char *)chars[i].image.data)[y*chars[i].image.width + x];
+ }
+ }
+ }
+ else TRACELOG(LOG_WARNING, "FONT: Failed to package character (%i)", i);
+ }
+
+ RL_FREE(rects);
+ RL_FREE(nodes);
+ RL_FREE(context);
+ }
+
+ // TODO: Crop image if required for smaller size
+
+ // Convert image data from GRAYSCALE to GRAY_ALPHA
+ unsigned char *dataGrayAlpha = (unsigned char *)RL_MALLOC(atlas.width*atlas.height*sizeof(unsigned char)*2); // Two channels
+
+ for (int i = 0, k = 0; i < atlas.width*atlas.height; i++, k += 2)
+ {
+ dataGrayAlpha[k] = 255;
+ dataGrayAlpha[k + 1] = ((unsigned char *)atlas.data)[i];
+ }
+
+ RL_FREE(atlas.data);
+ atlas.data = dataGrayAlpha;
+ atlas.format = PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA;
+
+ *charRecs = recs;
+
+ return atlas;
+}
+#endif
+
+// Unload font chars info data (RAM)
+void UnloadFontData(CharInfo *chars, int charsCount)
+{
+ for (int i = 0; i < charsCount; i++) UnloadImage(chars[i].image);
+
+ RL_FREE(chars);
+}
+
+// Unload Font from GPU memory (VRAM)
+void UnloadFont(Font font)
+{
+ // NOTE: Make sure font is not default font (fallback)
+ if (font.texture.id != GetFontDefault().texture.id)
+ {
+ UnloadFontData(font.chars, font.charsCount);
+ UnloadTexture(font.texture);
+ RL_FREE(font.recs);
+
+ TRACELOGD("FONT: Unloaded font data from RAM and VRAM");
+ }
+}
+
+// Draw current FPS
+// NOTE: Uses default font
+void DrawFPS(int posX, int posY)
+{
+ Color color = LIME; // good fps
+ int fps = GetFPS();
+
+ if (fps < 30 && fps >= 15) color = ORANGE; // warning FPS
+ else if (fps < 15) color = RED; // bad FPS
+
+ DrawText(TextFormat("%2i FPS", GetFPS()), posX, posY, 20, color);
+}
+
+// Draw text (using default font)
+// NOTE: fontSize work like in any drawing program but if fontSize is lower than font-base-size, then font-base-size is used
+// NOTE: chars spacing is proportional to fontSize
+void DrawText(const char *text, int posX, int posY, int fontSize, Color color)
+{
+ // Check if default font has been loaded
+ if (GetFontDefault().texture.id != 0)
+ {
+ Vector2 position = { (float)posX, (float)posY };
+
+ int defaultFontSize = 10; // Default Font chars height in pixel
+ if (fontSize < defaultFontSize) fontSize = defaultFontSize;
+ int spacing = fontSize/defaultFontSize;
+
+ DrawTextEx(GetFontDefault(), text, position, (float)fontSize, (float)spacing, color);
+ }
+}
+
+// Draw text using Font
+// NOTE: chars spacing is NOT proportional to fontSize
+void DrawTextEx(Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint)
+{
+ int length = TextLength(text); // Total length in bytes of the text, scanned by codepoints in loop
+
+ int textOffsetY = 0; // Offset between lines (on line break '\n')
+ float textOffsetX = 0.0f; // Offset X to next character to draw
+
+ float scaleFactor = fontSize/font.baseSize; // Character quad scaling factor
+
+ for (int i = 0; i < length;)
+ {
+ // Get next codepoint from byte string and glyph index in font
+ int codepointByteCount = 0;
+ int codepoint = GetNextCodepoint(&text[i], &codepointByteCount);
+ int index = GetGlyphIndex(font, codepoint);
+
+ // NOTE: Normally we exit the decoding sequence as soon as a bad byte is found (and return 0x3f)
+ // but we need to draw all of the bad bytes using the '?' symbol moving one byte
+ if (codepoint == 0x3f) codepointByteCount = 1;
+
+ if (codepoint == '\n')
+ {
+ // NOTE: Fixed line spacing of 1.5 line-height
+ // TODO: Support custom line spacing defined by user
+ textOffsetY += (int)((font.baseSize + font.baseSize/2)*scaleFactor);
+ textOffsetX = 0.0f;
+ }
+ else
+ {
+ if ((codepoint != ' ') && (codepoint != '\t'))
+ {
+ DrawTextCodepoint(font, codepoint, (Vector2){ position.x + textOffsetX, position.y + textOffsetY }, fontSize, tint);
+ }
+
+ if (font.chars[index].advanceX == 0) textOffsetX += ((float)font.recs[index].width*scaleFactor + spacing);
+ else textOffsetX += ((float)font.chars[index].advanceX*scaleFactor + spacing);
+ }
+
+ i += codepointByteCount; // Move text bytes counter to next codepoint
+ }
+}
+
+// Draw text using font inside rectangle limits
+void DrawTextRec(Font font, const char *text, Rectangle rec, float fontSize, float spacing, bool wordWrap, Color tint)
+{
+ DrawTextRecEx(font, text, rec, fontSize, spacing, wordWrap, tint, 0, 0, WHITE, WHITE);
+}
+
+// Draw text using font inside rectangle limits with support for text selection
+void DrawTextRecEx(Font font, const char *text, Rectangle rec, float fontSize, float spacing, bool wordWrap, Color tint, int selectStart, int selectLength, Color selectTint, Color selectBackTint)
+{
+ int length = TextLength(text); // Total length in bytes of the text, scanned by codepoints in loop
+
+ int textOffsetY = 0; // Offset between lines (on line break '\n')
+ float textOffsetX = 0.0f; // Offset X to next character to draw
+
+ float scaleFactor = fontSize/font.baseSize; // Character quad scaling factor
+
+ // Word/character wrapping mechanism variables
+ enum { MEASURE_STATE = 0, DRAW_STATE = 1 };
+ int state = wordWrap? MEASURE_STATE : DRAW_STATE;
+
+ int startLine = -1; // Index where to begin drawing (where a line begins)
+ int endLine = -1; // Index where to stop drawing (where a line ends)
+ int lastk = -1; // Holds last value of the character position
+
+ for (int i = 0, k = 0; i < length; i++, k++)
+ {
+ // Get next codepoint from byte string and glyph index in font
+ int codepointByteCount = 0;
+ int codepoint = GetNextCodepoint(&text[i], &codepointByteCount);
+ int index = GetGlyphIndex(font, codepoint);
+
+ // NOTE: Normally we exit the decoding sequence as soon as a bad byte is found (and return 0x3f)
+ // but we need to draw all of the bad bytes using the '?' symbol moving one byte
+ if (codepoint == 0x3f) codepointByteCount = 1;
+ i += (codepointByteCount - 1);
+
+ int glyphWidth = 0;
+ if (codepoint != '\n')
+ {
+ glyphWidth = (font.chars[index].advanceX == 0)?
+ (int)(font.recs[index].width*scaleFactor + spacing):
+ (int)(font.chars[index].advanceX*scaleFactor + spacing);
+ }
+
+ // NOTE: When wordWrap is ON we first measure how much of the text we can draw before going outside of the rec container
+ // We store this info in startLine and endLine, then we change states, draw the text between those two variables
+ // and change states again and again recursively until the end of the text (or until we get outside of the container).
+ // When wordWrap is OFF we don't need the measure state so we go to the drawing state immediately
+ // and begin drawing on the next line before we can get outside the container.
+ if (state == MEASURE_STATE)
+ {
+ // TODO: There are multiple types of spaces in UNICODE, maybe it's a good idea to add support for more
+ // Ref: http://jkorpela.fi/chars/spaces.html
+ if ((codepoint == ' ') || (codepoint == '\t') || (codepoint == '\n')) endLine = i;
+
+ if ((textOffsetX + glyphWidth + 1) >= rec.width)
+ {
+ endLine = (endLine < 1)? i : endLine;
+ if (i == endLine) endLine -= codepointByteCount;
+ if ((startLine + codepointByteCount) == endLine) endLine = (i - codepointByteCount);
+
+ state = !state;
+ }
+ else if ((i + 1) == length)
+ {
+ endLine = i;
+
+ state = !state;
+ }
+ else if (codepoint == '\n') state = !state;
+
+ if (state == DRAW_STATE)
+ {
+ textOffsetX = 0;
+ i = startLine;
+ glyphWidth = 0;
+
+ // Save character position when we switch states
+ int tmp = lastk;
+ lastk = k - 1;
+ k = tmp;
+ }
+ }
+ else
+ {
+ if (codepoint == '\n')
+ {
+ if (!wordWrap)
+ {
+ textOffsetY += (int)((font.baseSize + font.baseSize/2)*scaleFactor);
+ textOffsetX = 0;
+ }
+ }
+ else
+ {
+ if (!wordWrap && ((textOffsetX + glyphWidth + 1) >= rec.width))
+ {
+ textOffsetY += (int)((font.baseSize + font.baseSize/2)*scaleFactor);
+ textOffsetX = 0;
+ }
+
+ // When text overflows rectangle height limit, just stop drawing
+ if ((textOffsetY + (int)(font.baseSize*scaleFactor)) > rec.height) break;
+
+ // Draw selection background
+ bool isGlyphSelected = false;
+ if ((selectStart >= 0) && (k >= selectStart) && (k < (selectStart + selectLength)))
+ {
+ DrawRectangleRec((Rectangle){ rec.x + textOffsetX - 1, rec.y + textOffsetY, (float)glyphWidth, (float)font.baseSize*scaleFactor }, selectBackTint);
+ isGlyphSelected = true;
+ }
+
+ // Draw current character glyph
+ if ((codepoint != ' ') && (codepoint != '\t'))
+ {
+ DrawTextCodepoint(font, codepoint, (Vector2){ rec.x + textOffsetX, rec.y + textOffsetY }, fontSize, isGlyphSelected? selectTint : tint);
+ }
+ }
+
+ if (wordWrap && (i == endLine))
+ {
+ textOffsetY += (int)((font.baseSize + font.baseSize/2)*scaleFactor);
+ textOffsetX = 0;
+ startLine = endLine;
+ endLine = -1;
+ glyphWidth = 0;
+ selectStart += lastk - k;
+ k = lastk;
+
+ state = !state;
+ }
+ }
+
+ textOffsetX += glyphWidth;
+ }
+}
+
+// Draw one character (codepoint)
+void DrawTextCodepoint(Font font, int codepoint, Vector2 position, float fontSize, Color tint)
+{
+ // Character index position in sprite font
+ // NOTE: In case a codepoint is not available in the font, index returned points to '?'
+ int index = GetGlyphIndex(font, codepoint);
+ float scaleFactor = fontSize/font.baseSize; // Character quad scaling factor
+
+ // Character destination rectangle on screen
+ // NOTE: We consider charsPadding on drawing
+ Rectangle dstRec = { position.x + font.chars[index].offsetX*scaleFactor - (float)font.charsPadding*scaleFactor,
+ position.y + font.chars[index].offsetY*scaleFactor - (float)font.charsPadding*scaleFactor,
+ (font.recs[index].width + 2.0f*font.charsPadding)*scaleFactor,
+ (font.recs[index].height + 2.0f*font.charsPadding)*scaleFactor };
+
+ // Character source rectangle from font texture atlas
+ // NOTE: We consider chars padding when drawing, it could be required for outline/glow shader effects
+ Rectangle srcRec = { font.recs[index].x - (float)font.charsPadding, font.recs[index].y - (float)font.charsPadding,
+ font.recs[index].width + 2.0f*font.charsPadding, font.recs[index].height + 2.0f*font.charsPadding };
+
+ // Draw the character texture on the screen
+ DrawTexturePro(font.texture, srcRec, dstRec, (Vector2){ 0, 0 }, 0.0f, tint);
+}
+
+// Measure string width for default font
+int MeasureText(const char *text, int fontSize)
+{
+ Vector2 vec = { 0.0f, 0.0f };
+
+ // Check if default font has been loaded
+ if (GetFontDefault().texture.id != 0)
+ {
+ int defaultFontSize = 10; // Default Font chars height in pixel
+ if (fontSize < defaultFontSize) fontSize = defaultFontSize;
+ int spacing = fontSize/defaultFontSize;
+
+ vec = MeasureTextEx(GetFontDefault(), text, (float)fontSize, (float)spacing);
+ }
+
+ return (int)vec.x;
+}
+
+// Measure string size for Font
+Vector2 MeasureTextEx(Font font, const char *text, float fontSize, float spacing)
+{
+ int len = TextLength(text);
+ int tempLen = 0; // Used to count longer text line num chars
+ int lenCounter = 0;
+
+ float textWidth = 0.0f;
+ float tempTextWidth = 0.0f; // Used to count longer text line width
+
+ float textHeight = (float)font.baseSize;
+ float scaleFactor = fontSize/(float)font.baseSize;
+
+ int letter = 0; // Current character
+ int index = 0; // Index position in sprite font
+
+ for (int i = 0; i < len; i++)
+ {
+ lenCounter++;
+
+ int next = 0;
+ letter = GetNextCodepoint(&text[i], &next);
+ index = GetGlyphIndex(font, letter);
+
+ // NOTE: normally we exit the decoding sequence as soon as a bad byte is found (and return 0x3f)
+ // but we need to draw all of the bad bytes using the '?' symbol so to not skip any we set next = 1
+ if (letter == 0x3f) next = 1;
+ i += next - 1;
+
+ if (letter != '\n')
+ {
+ if (font.chars[index].advanceX != 0) textWidth += font.chars[index].advanceX;
+ else textWidth += (font.recs[index].width + font.chars[index].offsetX);
+ }
+ else
+ {
+ if (tempTextWidth < textWidth) tempTextWidth = textWidth;
+ lenCounter = 0;
+ textWidth = 0;
+ textHeight += ((float)font.baseSize*1.5f); // NOTE: Fixed line spacing of 1.5 lines
+ }
+
+ if (tempLen < lenCounter) tempLen = lenCounter;
+ }
+
+ if (tempTextWidth < textWidth) tempTextWidth = textWidth;
+
+ Vector2 vec = { 0 };
+ vec.x = tempTextWidth*scaleFactor + (float)((tempLen - 1)*spacing); // Adds chars spacing to measure
+ vec.y = textHeight*scaleFactor;
+
+ return vec;
+}
+
+// Returns index position for a unicode character on spritefont
+int GetGlyphIndex(Font font, int codepoint)
+{
+#ifndef GLYPH_NOTFOUND_CHAR_FALLBACK
+ #define GLYPH_NOTFOUND_CHAR_FALLBACK 63 // Character used if requested codepoint is not found: '?'
+#endif
+
+// Support charsets with any characters order
+#define SUPPORT_UNORDERED_CHARSET
+#if defined(SUPPORT_UNORDERED_CHARSET)
+ int index = GLYPH_NOTFOUND_CHAR_FALLBACK;
+
+ for (int i = 0; i < font.charsCount; i++)
+ {
+ if (font.chars[i].value == codepoint)
+ {
+ index = i;
+ break;
+ }
+ }
+
+ return index;
+#else
+ return (codepoint - 32);
+#endif
+}
+
+//----------------------------------------------------------------------------------
+// Text strings management functions
+//----------------------------------------------------------------------------------
+// Get text length in bytes, check for \0 character
+unsigned int TextLength(const char *text)
+{
+ unsigned int length = 0; //strlen(text)
+
+ if (text != NULL)
+ {
+ while (*text++) length++;
+ }
+
+ return length;
+}
+
+// Formatting of text with variables to 'embed'
+// WARNING: String returned will expire after this function is called MAX_TEXTFORMAT_BUFFERS times
+const char *TextFormat(const char *text, ...)
+{
+#ifndef MAX_TEXTFORMAT_BUFFERS
+ #define MAX_TEXTFORMAT_BUFFERS 4 // Maximum number of static buffers for text formatting
+#endif
+
+ // We create an array of buffers so strings don't expire until MAX_TEXTFORMAT_BUFFERS invocations
+ static char buffers[MAX_TEXTFORMAT_BUFFERS][MAX_TEXT_BUFFER_LENGTH] = { 0 };
+ static int index = 0;
+
+ char *currentBuffer = buffers[index];
+ memset(currentBuffer, 0, MAX_TEXT_BUFFER_LENGTH); // Clear buffer before using
+
+ va_list args;
+ va_start(args, text);
+ vsnprintf(currentBuffer, MAX_TEXT_BUFFER_LENGTH, text, args);
+ va_end(args);
+
+ index += 1; // Move to next buffer for next function call
+ if (index >= MAX_TEXTFORMAT_BUFFERS) index = 0;
+
+ return currentBuffer;
+}
+
+// Get integer value from text
+// NOTE: This function replaces atoi() [stdlib.h]
+int TextToInteger(const char *text)
+{
+ int value = 0;
+ int sign = 1;
+
+ if ((text[0] == '+') || (text[0] == '-'))
+ {
+ if (text[0] == '-') sign = -1;
+ text++;
+ }
+
+ for (int i = 0; ((text[i] >= '0') && (text[i] <= '9')); ++i) value = value*10 + (int)(text[i] - '0');
+
+ return value*sign;
+}
+
+#if defined(SUPPORT_TEXT_MANIPULATION)
+// Copy one string to another, returns bytes copied
+int TextCopy(char *dst, const char *src)
+{
+ int bytes = 0;
+
+ if (dst != NULL)
+ {
+ while (*src != '\0')
+ {
+ *dst = *src;
+ dst++;
+ src++;
+
+ bytes++;
+ }
+
+ *dst = '\0';
+ }
+
+ return bytes;
+}
+
+// Check if two text string are equal
+// REQUIRES: strcmp()
+bool TextIsEqual(const char *text1, const char *text2)
+{
+ bool result = false;
+
+ if (strcmp(text1, text2) == 0) result = true;
+
+ return result;
+}
+
+// Get a piece of a text string
+const char *TextSubtext(const char *text, int position, int length)
+{
+ static char buffer[MAX_TEXT_BUFFER_LENGTH] = { 0 };
+
+ int textLength = TextLength(text);
+
+ if (position >= textLength)
+ {
+ position = textLength - 1;
+ length = 0;
+ }
+
+ if (length >= textLength) length = textLength;
+
+ for (int c = 0 ; c < length ; c++)
+ {
+ *(buffer + c) = *(text + position);
+ text++;
+ }
+
+ *(buffer + length) = '\0';
+
+ return buffer;
+}
+
+// Replace text string
+// REQUIRES: strstr(), strncpy(), strcpy()
+// WARNING: Internally allocated memory must be freed by the user (if return != NULL)
+char *TextReplace(char *text, const char *replace, const char *by)
+{
+ // Sanity checks and initialization
+ if (!text || !replace || !by) return NULL;
+
+ char *result;
+
+ char *insertPoint; // Next insert point
+ char *temp; // Temp pointer
+ int replaceLen; // Replace string length of (the string to remove)
+ int byLen; // Replacement length (the string to replace replace by)
+ int lastReplacePos; // Distance between replace and end of last replace
+ int count; // Number of replacements
+
+ replaceLen = TextLength(replace);
+ if (replaceLen == 0) return NULL; // Empty replace causes infinite loop during count
+
+ byLen = TextLength(by);
+
+ // Count the number of replacements needed
+ insertPoint = text;
+ for (count = 0; (temp = strstr(insertPoint, replace)); count++) insertPoint = temp + replaceLen;
+
+ // Allocate returning string and point temp to it
+ temp = result = RL_MALLOC(TextLength(text) + (byLen - replaceLen)*count + 1);
+
+ if (!result) return NULL; // Memory could not be allocated
+
+ // First time through the loop, all the variable are set correctly from here on,
+ // temp points to the end of the result string
+ // insertPoint points to the next occurrence of replace in text
+ // text points to the remainder of text after "end of replace"
+ while (count--)
+ {
+ insertPoint = strstr(text, replace);
+ lastReplacePos = (int)(insertPoint - text);
+ temp = strncpy(temp, text, lastReplacePos) + lastReplacePos;
+ temp = strcpy(temp, by) + byLen;
+ text += lastReplacePos + replaceLen; // Move to next "end of replace"
+ }
+
+ // Copy remaind text part after replacement to result (pointed by moving temp)
+ strcpy(temp, text);
+
+ return result;
+}
+
+// Insert text in a specific position, moves all text forward
+// WARNING: Allocated memory should be manually freed
+char *TextInsert(const char *text, const char *insert, int position)
+{
+ int textLen = TextLength(text);
+ int insertLen = TextLength(insert);
+
+ char *result = (char *)RL_MALLOC(textLen + insertLen + 1);
+
+ for (int i = 0; i < position; i++) result[i] = text[i];
+ for (int i = position; i < insertLen + position; i++) result[i] = insert[i];
+ for (int i = (insertLen + position); i < (textLen + insertLen); i++) result[i] = text[i];
+
+ result[textLen + insertLen] = '\0'; // Make sure text string is valid!
+
+ return result;
+}
+
+// Join text strings with delimiter
+// REQUIRES: memset(), memcpy()
+const char *TextJoin(const char **textList, int count, const char *delimiter)
+{
+ static char text[MAX_TEXT_BUFFER_LENGTH] = { 0 };
+ memset(text, 0, MAX_TEXT_BUFFER_LENGTH);
+ char *textPtr = text;
+
+ int totalLength = 0;
+ int delimiterLen = TextLength(delimiter);
+
+ for (int i = 0; i < count; i++)
+ {
+ int textLength = TextLength(textList[i]);
+
+ // Make sure joined text could fit inside MAX_TEXT_BUFFER_LENGTH
+ if ((totalLength + textLength) < MAX_TEXT_BUFFER_LENGTH)
+ {
+ memcpy(textPtr, textList[i], textLength);
+ totalLength += textLength;
+ textPtr += textLength;
+
+ if ((delimiterLen > 0) && (i < (count - 1)))
+ {
+ memcpy(textPtr, delimiter, delimiterLen);
+ totalLength += delimiterLen;
+ textPtr += delimiterLen;
+ }
+ }
+ }
+
+ return text;
+}
+
+// Split string into multiple strings
+// REQUIRES: memset()
+const char **TextSplit(const char *text, char delimiter, int *count)
+{
+ // NOTE: Current implementation returns a copy of the provided string with '\0' (string end delimiter)
+ // inserted between strings defined by "delimiter" parameter. No memory is dynamically allocated,
+ // all used memory is static... it has some limitations:
+ // 1. Maximum number of possible split strings is set by MAX_TEXTSPLIT_COUNT
+ // 2. Maximum size of text to split is MAX_TEXT_BUFFER_LENGTH
+
+ static const char *result[MAX_TEXTSPLIT_COUNT] = { NULL };
+ static char buffer[MAX_TEXT_BUFFER_LENGTH] = { 0 };
+ memset(buffer, 0, MAX_TEXT_BUFFER_LENGTH);
+
+ result[0] = buffer;
+ int counter = 0;
+
+ if (text != NULL)
+ {
+ counter = 1;
+
+ // Count how many substrings we have on text and point to every one
+ for (int i = 0; i < MAX_TEXT_BUFFER_LENGTH; i++)
+ {
+ buffer[i] = text[i];
+ if (buffer[i] == '\0') break;
+ else if (buffer[i] == delimiter)
+ {
+ buffer[i] = '\0'; // Set an end of string at this point
+ result[counter] = buffer + i + 1;
+ counter++;
+
+ if (counter == MAX_TEXTSPLIT_COUNT) break;
+ }
+ }
+ }
+
+ *count = counter;
+ return result;
+}
+
+// Append text at specific position and move cursor!
+// REQUIRES: strcpy()
+void TextAppend(char *text, const char *append, int *position)
+{
+ strcpy(text + *position, append);
+ *position += TextLength(append);
+}
+
+// Find first text occurrence within a string
+// REQUIRES: strstr()
+int TextFindIndex(const char *text, const char *find)
+{
+ int position = -1;
+
+ char *ptr = strstr(text, find);
+
+ if (ptr != NULL) position = (int)(ptr - text);
+
+ return position;
+}
+
+// Get upper case version of provided string
+// REQUIRES: toupper()
+const char *TextToUpper(const char *text)
+{
+ static char buffer[MAX_TEXT_BUFFER_LENGTH] = { 0 };
+
+ for (int i = 0; i < MAX_TEXT_BUFFER_LENGTH; i++)
+ {
+ if (text[i] != '\0')
+ {
+ buffer[i] = (char)toupper(text[i]);
+ //if ((text[i] >= 'a') && (text[i] <= 'z')) buffer[i] = text[i] - 32;
+
+ // TODO: Support Utf8 diacritics!
+ //if ((text[i] >= 'à') && (text[i] <= 'ý')) buffer[i] = text[i] - 32;
+ }
+ else { buffer[i] = '\0'; break; }
+ }
+
+ return buffer;
+}
+
+// Get lower case version of provided string
+// REQUIRES: tolower()
+const char *TextToLower(const char *text)
+{
+ static char buffer[MAX_TEXT_BUFFER_LENGTH] = { 0 };
+
+ for (int i = 0; i < MAX_TEXT_BUFFER_LENGTH; i++)
+ {
+ if (text[i] != '\0')
+ {
+ buffer[i] = (char)tolower(text[i]);
+ //if ((text[i] >= 'A') && (text[i] <= 'Z')) buffer[i] = text[i] + 32;
+ }
+ else { buffer[i] = '\0'; break; }
+ }
+
+ return buffer;
+}
+
+// Get Pascal case notation version of provided string
+// REQUIRES: toupper()
+const char *TextToPascal(const char *text)
+{
+ static char buffer[MAX_TEXT_BUFFER_LENGTH] = { 0 };
+
+ buffer[0] = (char)toupper(text[0]);
+
+ for (int i = 1, j = 1; i < MAX_TEXT_BUFFER_LENGTH; i++, j++)
+ {
+ if (text[j] != '\0')
+ {
+ if (text[j] != '_') buffer[i] = text[j];
+ else
+ {
+ j++;
+ buffer[i] = (char)toupper(text[j]);
+ }
+ }
+ else { buffer[i] = '\0'; break; }
+ }
+
+ return buffer;
+}
+
+// Encode text codepoint into utf8 text
+// REQUIRES: memcpy()
+// WARNING: Allocated memory should be manually freed
+char *TextToUtf8(int *codepoints, int length)
+{
+ // We allocate enough memory fo fit all possible codepoints
+ // NOTE: 5 bytes for every codepoint should be enough
+ char *text = (char *)RL_CALLOC(length*5, 1);
+ const char *utf8 = NULL;
+ int size = 0;
+
+ for (int i = 0, bytes = 0; i < length; i++)
+ {
+ utf8 = CodepointToUtf8(codepoints[i], &bytes);
+ memcpy(text + size, utf8, bytes);
+ size += bytes;
+ }
+
+ // Resize memory to text length + string NULL terminator
+ void *ptr = RL_REALLOC(text, size + 1);
+
+ if (ptr != NULL) text = (char *)ptr;
+
+ return text;
+}
+
+// Encode codepoint into utf8 text (char array length returned as parameter)
+RLAPI const char *CodepointToUtf8(int codepoint, int *byteLength)
+{
+ static char utf8[6] = { 0 };
+ int length = 0;
+
+ if (codepoint <= 0x7f)
+ {
+ utf8[0] = (char)codepoint;
+ length = 1;
+ }
+ else if (codepoint <= 0x7ff)
+ {
+ utf8[0] = (char)(((codepoint >> 6) & 0x1f) | 0xc0);
+ utf8[1] = (char)((codepoint & 0x3f) | 0x80);
+ length = 2;
+ }
+ else if (codepoint <= 0xffff)
+ {
+ utf8[0] = (char)(((codepoint >> 12) & 0x0f) | 0xe0);
+ utf8[1] = (char)(((codepoint >> 6) & 0x3f) | 0x80);
+ utf8[2] = (char)((codepoint & 0x3f) | 0x80);
+ length = 3;
+ }
+ else if (codepoint <= 0x10ffff)
+ {
+ utf8[0] = (char)(((codepoint >> 18) & 0x07) | 0xf0);
+ utf8[1] = (char)(((codepoint >> 12) & 0x3f) | 0x80);
+ utf8[2] = (char)(((codepoint >> 6) & 0x3f) | 0x80);
+ utf8[3] = (char)((codepoint & 0x3f) | 0x80);
+ length = 4;
+ }
+
+ *byteLength = length;
+
+ return utf8;
+}
+
+// Get all codepoints in a string, codepoints count returned by parameters
+// REQUIRES: memset()
+int *GetCodepoints(const char *text, int *count)
+{
+ static int codepoints[MAX_TEXT_UNICODE_CHARS] = { 0 };
+ memset(codepoints, 0, MAX_TEXT_UNICODE_CHARS*sizeof(int));
+
+ int bytesProcessed = 0;
+ int textLength = TextLength(text);
+ int codepointsCount = 0;
+
+ for (int i = 0; i < textLength; codepointsCount++)
+ {
+ codepoints[codepointsCount] = GetNextCodepoint(text + i, &bytesProcessed);
+ i += bytesProcessed;
+ }
+
+ *count = codepointsCount;
+
+ return codepoints;
+}
+
+// Returns total number of characters(codepoints) in a UTF8 encoded text, until '\0' is found
+// NOTE: If an invalid UTF8 sequence is encountered a '?'(0x3f) codepoint is counted instead
+int GetCodepointsCount(const char *text)
+{
+ unsigned int len = 0;
+ char *ptr = (char *)&text[0];
+
+ while (*ptr != '\0')
+ {
+ int next = 0;
+ int letter = GetNextCodepoint(ptr, &next);
+
+ if (letter == 0x3f) ptr += 1;
+ else ptr += next;
+
+ len++;
+ }
+
+ return len;
+}
+#endif // SUPPORT_TEXT_MANIPULATION
+
+// Returns next codepoint in a UTF8 encoded text, scanning until '\0' is found
+// When a invalid UTF8 byte is encountered we exit as soon as possible and a '?'(0x3f) codepoint is returned
+// Total number of bytes processed are returned as a parameter
+// NOTE: the standard says U+FFFD should be returned in case of errors
+// but that character is not supported by the default font in raylib
+// TODO: Optimize this code for speed!!
+int GetNextCodepoint(const char *text, int *bytesProcessed)
+{
+/*
+ UTF8 specs from https://www.ietf.org/rfc/rfc3629.txt
+
+ Char. number range | UTF-8 octet sequence
+ (hexadecimal) | (binary)
+ --------------------+---------------------------------------------
+ 0000 0000-0000 007F | 0xxxxxxx
+ 0000 0080-0000 07FF | 110xxxxx 10xxxxxx
+ 0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
+ 0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+*/
+ // NOTE: on decode errors we return as soon as possible
+
+ int code = 0x3f; // Codepoint (defaults to '?')
+ int octet = (unsigned char)(text[0]); // The first UTF8 octet
+ *bytesProcessed = 1;
+
+ if (octet <= 0x7f)
+ {
+ // Only one octet (ASCII range x00-7F)
+ code = text[0];
+ }
+ else if ((octet & 0xe0) == 0xc0)
+ {
+ // Two octets
+ // [0]xC2-DF [1]UTF8-tail(x80-BF)
+ unsigned char octet1 = text[1];
+
+ if ((octet1 == '\0') || ((octet1 >> 6) != 2)) { *bytesProcessed = 2; return code; } // Unexpected sequence
+
+ if ((octet >= 0xc2) && (octet <= 0xdf))
+ {
+ code = ((octet & 0x1f) << 6) | (octet1 & 0x3f);
+ *bytesProcessed = 2;
+ }
+ }
+ else if ((octet & 0xf0) == 0xe0)
+ {
+ // Three octets
+ unsigned char octet1 = text[1];
+ unsigned char octet2 = '\0';
+
+ if ((octet1 == '\0') || ((octet1 >> 6) != 2)) { *bytesProcessed = 2; return code; } // Unexpected sequence
+
+ octet2 = text[2];
+
+ if ((octet2 == '\0') || ((octet2 >> 6) != 2)) { *bytesProcessed = 3; return code; } // Unexpected sequence
+
+ /*
+ [0]xE0 [1]xA0-BF [2]UTF8-tail(x80-BF)
+ [0]xE1-EC [1]UTF8-tail [2]UTF8-tail(x80-BF)
+ [0]xED [1]x80-9F [2]UTF8-tail(x80-BF)
+ [0]xEE-EF [1]UTF8-tail [2]UTF8-tail(x80-BF)
+ */
+
+ if (((octet == 0xe0) && !((octet1 >= 0xa0) && (octet1 <= 0xbf))) ||
+ ((octet == 0xed) && !((octet1 >= 0x80) && (octet1 <= 0x9f)))) { *bytesProcessed = 2; return code; }
+
+ if ((octet >= 0xe0) && (0 <= 0xef))
+ {
+ code = ((octet & 0xf) << 12) | ((octet1 & 0x3f) << 6) | (octet2 & 0x3f);
+ *bytesProcessed = 3;
+ }
+ }
+ else if ((octet & 0xf8) == 0xf0)
+ {
+ // Four octets
+ if (octet > 0xf4) return code;
+
+ unsigned char octet1 = text[1];
+ unsigned char octet2 = '\0';
+ unsigned char octet3 = '\0';
+
+ if ((octet1 == '\0') || ((octet1 >> 6) != 2)) { *bytesProcessed = 2; return code; } // Unexpected sequence
+
+ octet2 = text[2];
+
+ if ((octet2 == '\0') || ((octet2 >> 6) != 2)) { *bytesProcessed = 3; return code; } // Unexpected sequence
+
+ octet3 = text[3];
+
+ if ((octet3 == '\0') || ((octet3 >> 6) != 2)) { *bytesProcessed = 4; return code; } // Unexpected sequence
+
+ /*
+ [0]xF0 [1]x90-BF [2]UTF8-tail [3]UTF8-tail
+ [0]xF1-F3 [1]UTF8-tail [2]UTF8-tail [3]UTF8-tail
+ [0]xF4 [1]x80-8F [2]UTF8-tail [3]UTF8-tail
+ */
+
+ if (((octet == 0xf0) && !((octet1 >= 0x90) && (octet1 <= 0xbf))) ||
+ ((octet == 0xf4) && !((octet1 >= 0x80) && (octet1 <= 0x8f)))) { *bytesProcessed = 2; return code; } // Unexpected sequence
+
+ if (octet >= 0xf0)
+ {
+ code = ((octet & 0x7) << 18) | ((octet1 & 0x3f) << 12) | ((octet2 & 0x3f) << 6) | (octet3 & 0x3f);
+ *bytesProcessed = 4;
+ }
+ }
+
+ if (code > 0x10ffff) code = 0x3f; // Codepoints after U+10ffff are invalid
+
+ return code;
+}
+
+//----------------------------------------------------------------------------------
+// Module specific Functions Definition
+//----------------------------------------------------------------------------------
+#if defined(SUPPORT_FILEFORMAT_FNT)
+
+// Read a line from memory
+// REQUIRES: memcpy()
+// NOTE: Returns the number of bytes read
+static int GetLine(const char *origin, char *buffer, int maxLength)
+{
+ int count = 0;
+ for (; count < maxLength; count++) if (origin[count] == '\n') break;
+ memcpy(buffer, origin, count);
+ return count;
+}
+
+// Load a BMFont file (AngelCode font file)
+// REQUIRES: strstr(), sscanf(), strrchr(), memcpy()
+static Font LoadBMFont(const char *fileName)
+{
+ #define MAX_BUFFER_SIZE 256
+
+ Font font = { 0 };
+
+ char buffer[MAX_BUFFER_SIZE] = { 0 };
+ char *searchPoint = NULL;
+
+ int fontSize = 0;
+ int charsCount = 0;
+
+ int imWidth = 0;
+ int imHeight = 0;
+ char imFileName[129];
+
+ int base = 0; // Useless data
+
+ char *fileText = LoadFileText(fileName);
+
+ if (fileText == NULL) return font;
+
+ char *fileTextPtr = fileText;
+
+ // NOTE: We skip first line, it contains no useful information
+ int lineBytes = GetLine(fileTextPtr, buffer, MAX_BUFFER_SIZE);
+ fileTextPtr += (lineBytes + 1);
+
+ // Read line data
+ lineBytes = GetLine(fileTextPtr, buffer, MAX_BUFFER_SIZE);
+ searchPoint = strstr(buffer, "lineHeight");
+ sscanf(searchPoint, "lineHeight=%i base=%i scaleW=%i scaleH=%i", &fontSize, &base, &imWidth, &imHeight);
+ fileTextPtr += (lineBytes + 1);
+
+ TRACELOGD("FONT: [%s] Loaded font info:", fileName);
+ TRACELOGD(" > Base size: %i", fontSize);
+ TRACELOGD(" > Texture scale: %ix%i", imWidth, imHeight);
+
+ lineBytes = GetLine(fileTextPtr, buffer, MAX_BUFFER_SIZE);
+ searchPoint = strstr(buffer, "file");
+ sscanf(searchPoint, "file=\"%128[^\"]\"", imFileName);
+ fileTextPtr += (lineBytes + 1);
+
+ TRACELOGD(" > Texture filename: %s", imFileName);
+
+ lineBytes = GetLine(fileTextPtr, buffer, MAX_BUFFER_SIZE);
+ searchPoint = strstr(buffer, "count");
+ sscanf(searchPoint, "count=%i", &charsCount);
+ fileTextPtr += (lineBytes + 1);
+
+ TRACELOGD(" > Chars count: %i", charsCount);
+
+ // Compose correct path using route of .fnt file (fileName) and imFileName
+ char *imPath = NULL;
+ char *lastSlash = NULL;
+
+ lastSlash = strrchr(fileName, '/');
+ if (lastSlash == NULL) lastSlash = strrchr(fileName, '\\');
+
+ if (lastSlash != NULL)
+ {
+ // NOTE: We need some extra space to avoid memory corruption on next allocations!
+ imPath = RL_CALLOC(TextLength(fileName) - TextLength(lastSlash) + TextLength(imFileName) + 4, 1);
+ memcpy(imPath, fileName, TextLength(fileName) - TextLength(lastSlash) + 1);
+ memcpy(imPath + TextLength(fileName) - TextLength(lastSlash) + 1, imFileName, TextLength(imFileName));
+ }
+ else imPath = imFileName;
+
+ TRACELOGD(" > Image loading path: %s", imPath);
+
+ Image imFont = LoadImage(imPath);
+
+ if (imFont.format == PIXELFORMAT_UNCOMPRESSED_GRAYSCALE)
+ {
+ // Convert image to GRAYSCALE + ALPHA, using the mask as the alpha channel
+ Image imFontAlpha = {
+ .data = calloc(imFont.width*imFont.height, 2),
+ .width = imFont.width,
+ .height = imFont.height,
+ .format = PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA,
+ .mipmaps = 1
+ };
+
+ for (int p = 0, i = 0; p < (imFont.width*imFont.height*2); p += 2, i++)
+ {
+ ((unsigned char *)(imFontAlpha.data))[p] = 0xff;
+ ((unsigned char *)(imFontAlpha.data))[p + 1] = ((unsigned char *)imFont.data)[i];
+ }
+
+ UnloadImage(imFont);
+ imFont = imFontAlpha;
+ }
+
+ font.texture = LoadTextureFromImage(imFont);
+
+ if (lastSlash != NULL) RL_FREE(imPath);
+
+ // Fill font characters info data
+ font.baseSize = fontSize;
+ font.charsCount = charsCount;
+ font.charsPadding = 0;
+ font.chars = (CharInfo *)RL_MALLOC(charsCount*sizeof(CharInfo));
+ font.recs = (Rectangle *)RL_MALLOC(charsCount*sizeof(Rectangle));
+
+ int charId, charX, charY, charWidth, charHeight, charOffsetX, charOffsetY, charAdvanceX;
+
+ for (int i = 0; i < charsCount; i++)
+ {
+ lineBytes = GetLine(fileTextPtr, buffer, MAX_BUFFER_SIZE);
+ sscanf(buffer, "char id=%i x=%i y=%i width=%i height=%i xoffset=%i yoffset=%i xadvance=%i",
+ &charId, &charX, &charY, &charWidth, &charHeight, &charOffsetX, &charOffsetY, &charAdvanceX);
+ fileTextPtr += (lineBytes + 1);
+
+ // Get character rectangle in the font atlas texture
+ font.recs[i] = (Rectangle){ (float)charX, (float)charY, (float)charWidth, (float)charHeight };
+
+ // Save data properly in sprite font
+ font.chars[i].value = charId;
+ font.chars[i].offsetX = charOffsetX;
+ font.chars[i].offsetY = charOffsetY;
+ font.chars[i].advanceX = charAdvanceX;
+
+ // Fill character image data from imFont data
+ font.chars[i].image = ImageFromImage(imFont, font.recs[i]);
+ }
+
+ UnloadImage(imFont);
+ RL_FREE(fileText);
+
+ if (font.texture.id == 0)
+ {
+ UnloadFont(font);
+ font = GetFontDefault();
+ TRACELOG(LOG_WARNING, "FONT: [%s] Failed to load texture, reverted to default font", fileName);
+ }
+ else TRACELOG(LOG_INFO, "FONT: [%s] Font loaded successfully", fileName);
+
+ return font;
+}
+#endif
projects / pistorm / blobdiff