diff --git a/src/raylib.h b/src/raylib.h index 785ebebbc..1113958d0 100644 --- a/src/raylib.h +++ b/src/raylib.h @@ -1,6 +1,6 @@ /********************************************************************************************** * -* raylib 1.3.0 (www.raylib.com) +* raylib 1.4.0 (www.raylib.com) * * A simple and easy-to-use library to learn videogames programming * @@ -291,6 +291,8 @@ typedef struct SpriteFont { int numChars; // Number of characters int *charValues; // Characters values array Rectangle *charRecs; // Characters rectangles within the texture + Vector2 *charOffsets; // Characters offsets (on drawing) + int *charAdvanceX; // Characters x advance (on drawing) } SpriteFont; // Camera type, defines a camera position/orientation in 3d space diff --git a/src/text.c b/src/text.c index 0930b779f..1a75b9e44 100644 --- a/src/text.c +++ b/src/text.c @@ -34,10 +34,12 @@ // Following libs are used on LoadTTF() #define STB_TRUETYPE_IMPLEMENTATION -#define STB_RECT_PACK_IMPLEMENTATION -#include "stb_rect_pack.h" #include "stb_truetype.h" +// Rectangle packing functions (not used at the moment) +//#define STB_RECT_PACK_IMPLEMENTATION +//#include "stb_rect_pack.h" + //---------------------------------------------------------------------------------- // Defines and Macros //---------------------------------------------------------------------------------- @@ -70,6 +72,7 @@ static SpriteFont defaultFont; // Default font provided by raylib static bool PixelIsMagenta(Color p); // Check if a pixel is magenta static int ParseImageData(Image image, int **charValues, Rectangle **charSet); // Parse image pixel data to obtain characters data static SpriteFont LoadRBMF(const char *fileName); // Load a rBMF font file (raylib BitMap Font) +static SpriteFont LoadBMFont(const char *fileName); // Load a BMFont file (AngelCode font file) static SpriteFont LoadTTF(const char *fileName, int fontSize); // Generate a sprite font image from TTF data (font size required) extern void LoadDefaultFont(void); @@ -185,6 +188,10 @@ extern void LoadDefaultFont(void) defaultFont.charValues = (int *)malloc(defaultFont.numChars*sizeof(int)); defaultFont.charRecs = (Rectangle *)malloc(defaultFont.numChars*sizeof(Rectangle)); // Allocate space for our character rectangle data // This memory should be freed at end! --> Done on CloseWindow() + + defaultFont.charOffsets = (Vector2 *)malloc(defaultFont.numChars*sizeof(Vector2)); + defaultFont.charAdvanceX = (int *)malloc(defaultFont.numChars*sizeof(int)); + int currentLine = 0; int currentPosX = charsDivisor; int testPosX = charsDivisor; @@ -210,6 +217,10 @@ extern void LoadDefaultFont(void) defaultFont.charRecs[i].y = charsDivisor + currentLine*(charsHeight + charsDivisor); } else currentPosX = testPosX; + + // NOTE: On default font character offsets and xAdvance are not required + defaultFont.charOffsets[i] = (Vector2){ 0.0f, 0.0f }; + defaultFont.charAdvanceX[i] = 0; } defaultFont.size = defaultFont.charRecs[0].height; @@ -222,6 +233,8 @@ extern void UnloadDefaultFont(void) UnloadTexture(defaultFont.texture); free(defaultFont.charValues); free(defaultFont.charRecs); + free(defaultFont.charOffsets); + free(defaultFont.charAdvanceX); } // Get the default font, useful to be used with extended parameters @@ -237,7 +250,8 @@ SpriteFont LoadSpriteFont(const char *fileName) // Check file extension if (strcmp(GetExtension(fileName),"rbmf") == 0) spriteFont = LoadRBMF(fileName); - else if (strcmp(GetExtension(fileName),"ttf") == 0) spriteFont = LoadTTF(fileName, 20); + else if (strcmp(GetExtension(fileName),"ttf") == 0) spriteFont = LoadTTF(fileName, 32); + else if (strcmp(GetExtension(fileName),"fnt") == 0) spriteFont = LoadBMFont(fileName); else { Image image = LoadImage(fileName); @@ -254,6 +268,16 @@ SpriteFont LoadSpriteFont(const char *fileName) spriteFont.numChars = numChars; spriteFont.texture = LoadTextureFromImage(image); // Convert loaded image to OpenGL texture spriteFont.size = spriteFont.charRecs[0].height; + + defaultFont.charOffsets = (Vector2 *)malloc(defaultFont.numChars*sizeof(Vector2)); + defaultFont.charAdvanceX = (int *)malloc(defaultFont.numChars*sizeof(int)); + + for (int i = 0; i < defaultFont.numChars; i++) + { + // NOTE: On image based fonts (XNA style), character offsets and xAdvance are not required (set to 0) + defaultFont.charOffsets[i] = (Vector2){ 0.0f, 0.0f }; + defaultFont.charAdvanceX[i] = 0; + } } else { @@ -263,6 +287,12 @@ SpriteFont LoadSpriteFont(const char *fileName) UnloadImage(image); } + + if (spriteFont.texture.id == 0) + { + TraceLog(WARNING, "[%s] SpriteFont could not be loaded, using default font", fileName); + spriteFont = GetDefaultFont(); + } return spriteFont; } @@ -270,11 +300,17 @@ SpriteFont LoadSpriteFont(const char *fileName) // Unload SpriteFont from GPU memory void UnloadSpriteFont(SpriteFont spriteFont) { - UnloadTexture(spriteFont.texture); - free(spriteFont.charValues); - free(spriteFont.charRecs); - - TraceLog(INFO, "Unloaded sprite font data"); + // NOTE: Make sure spriteFont is not default font (fallback) + if (spriteFont.texture.id != defaultFont.texture.id) + { + UnloadTexture(spriteFont.texture); + free(spriteFont.charValues); + free(spriteFont.charRecs); + free(spriteFont.charOffsets); + free(spriteFont.charAdvanceX); + + TraceLog(INFO, "Unloaded sprite font data"); + } } // Draw text (using default font) @@ -296,14 +332,14 @@ void DrawText(const char *text, int posX, int posY, int fontSize, Color color) void DrawTextEx(SpriteFont spriteFont, const char *text, Vector2 position, int fontSize, int spacing, Color tint) { int length = strlen(text); - int offsetX = 0; - int offsetY = 0; // Line break! + int textOffsetX = 0; + int textOffsetY = 0; // Line break! float scaleFactor; unsigned char letter; Rectangle rec; - scaleFactor = (float)fontSize/spriteFont.charRecs[0].height; + scaleFactor = (float)fontSize/spriteFont.size; // NOTE: Some ugly hacks are made to support Latin-1 Extended characters directly // written in C code files (codified by default as UTF-8) @@ -332,8 +368,9 @@ void DrawTextEx(SpriteFont spriteFont, const char *text, Vector2 position, int f { if ((unsigned char)text[i] == '\n') { - offsetY += ((spriteFont.size + spriteFont.size/2)*scaleFactor); - offsetX = 0; + // NOTE: Fixed line spacing of 1.5 lines + textOffsetY += ((spriteFont.size + spriteFont.size/2)*scaleFactor); + textOffsetX = 0; rec.x = -1; } else rec = spriteFont.charRecs[(int)text[i] - FONT_FIRST_CHAR]; @@ -341,9 +378,12 @@ void DrawTextEx(SpriteFont spriteFont, const char *text, Vector2 position, int f if (rec.x > 0) { - DrawTexturePro(spriteFont.texture, rec, (Rectangle){ position.x + offsetX, position.y + offsetY, rec.width*scaleFactor, rec.height*scaleFactor} , (Vector2){ 0, 0 }, 0.0f, tint); + DrawTexturePro(spriteFont.texture, rec, (Rectangle){ position.x + textOffsetX + spriteFont.charOffsets[(int)text[i] - FONT_FIRST_CHAR].x*scaleFactor, + position.y + textOffsetY + spriteFont.charOffsets[(int)text[i] - FONT_FIRST_CHAR].y*scaleFactor, + rec.width*scaleFactor, rec.height*scaleFactor} , (Vector2){ 0, 0 }, 0.0f, tint); - offsetX += (rec.width*scaleFactor + spacing); + if (spriteFont.charAdvanceX[(int)text[i] - FONT_FIRST_CHAR] == 0) textOffsetX += (rec.width*scaleFactor + spacing); + else textOffsetX += (spriteFont.charAdvanceX[(int)text[i] - FONT_FIRST_CHAR]*scaleFactor + spacing); } } } @@ -419,14 +459,15 @@ Vector2 MeasureTextEx(SpriteFont spriteFont, const char *text, int fontSize, int if (text[i] != '\n') { - textWidth += spriteFont.charRecs[(int)text[i] - FONT_FIRST_CHAR].width; + if (spriteFont.charAdvanceX[(int)text[i] - FONT_FIRST_CHAR] != 0) textWidth += spriteFont.charAdvanceX[(int)text[i] - FONT_FIRST_CHAR]; + else textWidth += (spriteFont.charRecs[(int)text[i] - FONT_FIRST_CHAR].width + spriteFont.charOffsets[(int)text[i] - FONT_FIRST_CHAR].x); } else { if (tempTextWidth < textWidth) tempTextWidth = textWidth; lenCounter = 0; textWidth = 0; - textHeight += (spriteFont.size + spriteFont.size/2); + textHeight += (spriteFont.size + spriteFont.size/2); // NOTE: Fixed line spacing of 1.5 lines } if (tempLen < lenCounter) tempLen = lenCounter; @@ -695,114 +736,181 @@ static SpriteFont LoadRBMF(const char *fileName) return spriteFont; } -// Generate a sprite font from TTF data (font size required) -// NOTE: This function is a mess, it should be completely redone! -static SpriteFont LoadTTF(const char *fileName, int fontSize) +// Load a BMFont file (AngelCode font file) +static SpriteFont LoadBMFont(const char *fileName) { - // Steps: - - // 1) Generate sprite sheet image with characters from TTF - // 2) Load image as SpriteFont + #define MAX_BUFFER_SIZE 256 SpriteFont font = { 0 }; + font.texture.id = 0; + + char buffer[MAX_BUFFER_SIZE]; + char *searchPoint = NULL; + + int fontSize = 0; + int texWidth, texHeight; + char texFileName[128]; + int numChars = 0; - Image image; - image.width = 512; - image.height = 512; - //image.pixels = (Color *)malloc(image.width*image.height*sizeof(Color)); + int base; // Useless data + + FILE *fntFile; + + fntFile = fopen(fileName, "rt"); + + if (fntFile == NULL) + { + TraceLog(WARNING, "[%s] FNT file could not be opened", fileName); + return font; + } + + // NOTE: We skip first line, it contains no useful information + fgets(buffer, MAX_BUFFER_SIZE, fntFile); + //searchPoint = strstr(buffer, "size"); + //sscanf(searchPoint, "size=%i", &fontSize); + + fgets(buffer, MAX_BUFFER_SIZE, fntFile); + searchPoint = strstr(buffer, "lineHeight"); + sscanf(searchPoint, "lineHeight=%i base=%i scaleW=%i scaleH=%i", &fontSize, &base, &texWidth, &texHeight); + + TraceLog(DEBUG, "[%s] Font size: %i", fileName, fontSize); + TraceLog(DEBUG, "[%s] Font texture scale: %ix%i", fileName, texWidth, texHeight); + + fgets(buffer, MAX_BUFFER_SIZE, fntFile); + searchPoint = strstr(buffer, "file"); + sscanf(searchPoint, "file=\"%128[^\"]\"", texFileName); + + TraceLog(DEBUG, "[%s] Font texture filename: %s", fileName, texFileName); + + fgets(buffer, MAX_BUFFER_SIZE, fntFile); + searchPoint = strstr(buffer, "count"); + sscanf(searchPoint, "count=%i", &numChars); + + TraceLog(DEBUG, "[%s] Font num chars: %i", fileName, numChars); + + // Compose correct path using route of .fnt file (fileName) and texFileName + char *texPath = NULL; + char *lastSlash = NULL; + + lastSlash = strrchr(fileName, '/'); // you need escape character + texPath = malloc(strlen(fileName) - strlen(lastSlash) + 1 + strlen(texFileName) + 1); + memcpy(texPath, fileName, strlen(fileName) - strlen(lastSlash)); + strcat(texPath, "/"); + strcat(texPath, texFileName); + strcat(texPath, "\0"); + + TraceLog(DEBUG, "[%s] Font texture loading path: %s", fileName, texPath); + + font.texture = LoadTexture(texPath); + font.size = fontSize; + font.numChars = numChars; + font.charValues = (int *)malloc(numChars*sizeof(int)); + font.charRecs = (Rectangle *)malloc(numChars*sizeof(Rectangle)); + font.charOffsets = (Vector2 *)malloc(numChars*sizeof(Vector2)); + font.charAdvanceX = (int *)malloc(numChars*sizeof(int)); + + free(texPath); + + int charId, charX, charY, charWidth, charHeight, charOffsetX, charOffsetY, charAdvanceX; + + for (int i = 0; i < numChars; i++) + { + fgets(buffer, MAX_BUFFER_SIZE, fntFile); + 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); + + // Save data properly in sprite font + font.charValues[i] = charId; + font.charRecs[i] = (Rectangle){ charX, charY, charWidth, charHeight }; + font.charOffsets[i] = (Vector2){ (float)charOffsetX, (float)charOffsetY }; + font.charAdvanceX[i] = charAdvanceX; + } + + // TODO: Font data could be not ordered by charId: 32,33,34,35... review charValues and charRecs order + + fclose(fntFile); + + TraceLog(INFO, "[%s] SpriteFont loaded successfully", fileName); + + return font; + +} + +// 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) +{ + // NOTE: Generated font uses some hardcoded values + #define FONT_TEXTURE_WIDTH 512 // Font texture width + #define FONT_TEXTURE_HEIGHT 512 // Font texture height + #define FONT_FIRST_CHAR 32 // Font first character (32 - space) + #define FONT_NUM_CHARS 95 // ASCII 32..126 is 95 glyphs unsigned char *ttfBuffer = (unsigned char *)malloc(1 << 25); + unsigned char *dataBitmap = (unsigned char *)malloc(FONT_TEXTURE_WIDTH*FONT_TEXTURE_HEIGHT*sizeof(unsigned char)); // One channel bitmap returned! + stbtt_bakedchar charData[FONT_NUM_CHARS]; // ASCII 32..126 is 95 glyphs - // TODO: Load TTF and generate bitmap font and chars data -> REVIEW! - - stbtt_packedchar chardata[128]; // Num characters: 128 (?) -> REVIEW! - - unsigned char *tempBitmap = (unsigned char *)malloc(image.width*image.height*sizeof(unsigned char)); // One channel bitmap returned! - - // Reference struct -/* - typedef struct - { - unsigned short x0,y0,x1,y1; // coordinates of bbox in bitmap - float xoff,yoff,xadvance; - float xoff2,yoff2; - } stbtt_packedchar; -*/ - - stbtt_pack_context pc; - + SpriteFont font = { 0 }; + FILE *ttfFile = fopen(fileName, "rb"); + + if (ttfFile == NULL) + { + TraceLog(WARNING, "[%s] FNT file could not be opened", fileName); + return font; + } fread(ttfBuffer, 1, 1<<25, ttfFile); - stbtt_PackBegin(&pc, tempBitmap, image.width, image.height, 0, 1, NULL); - - //stbtt_PackSetOversampling(&pc, 1, 1); - //stbtt_PackFontRange(&pc, ttfBuffer, 0, fontSize, 32, 95, chardata[0]+32); - stbtt_PackSetOversampling(&pc, 2, 2); // Better results - stbtt_PackFontRange(&pc, ttfBuffer, 0, fontSize, 32, 95, chardata + 32); - //stbtt_PackSetOversampling(&pc, 3, 1); - //stbtt_PackFontRange(&pc, ttfBuffer, 0, fontSize, 32, 95, chardata[2]+32); - - stbtt_PackEnd(&pc); + // NOTE: Using stb_truetype crappy packing method, no guarante the font fits the image... + stbtt_BakeFontBitmap(ttfBuffer,0, fontSize, dataBitmap, FONT_TEXTURE_WIDTH, FONT_TEXTURE_HEIGHT, FONT_FIRST_CHAR, FONT_NUM_CHARS, charData); free(ttfBuffer); - - // Now we have image data in tempBitmap and chardata filled... -/* - for (int i = 0; i < 512*512; i++) + + // Convert image data from grayscale to to UNCOMPRESSED_GRAY_ALPHA + unsigned char *dataGrayAlpha = (unsigned char *)malloc(FONT_TEXTURE_WIDTH*FONT_TEXTURE_HEIGHT*sizeof(unsigned char)*2); // Two channels + int k = 0; + + for (int i = 0; i < FONT_TEXTURE_WIDTH*FONT_TEXTURE_HEIGHT; i++) { - image.pixels[i].r = tempBitmap[i]; - image.pixels[i].g = tempBitmap[i]; - image.pixels[i].b = tempBitmap[i]; - image.pixels[i].a = 255; + dataGrayAlpha[k] = 255; + dataGrayAlpha[k + 1] = dataBitmap[i]; + + k += 2; } -*/ - free(tempBitmap); + + free(dataBitmap); + + // Sprite font generation from TTF extracted data + Image image; + image.width = FONT_TEXTURE_WIDTH; + image.height = FONT_TEXTURE_HEIGHT; + image.mipmaps = 1; + image.format = UNCOMPRESSED_GRAY_ALPHA; + image.data = dataGrayAlpha; - // REFERENCE EXAMPLE -/* - //To draw, provide *text, posX, posY - //stbtt_aligned_quad letter; - //stbtt_GetPackedQuad(chardata[0], BITMAP_W, BITMAP_H, *text++, &posX, &posY, &letter, font ? 0 : integer_align); - - void print(float x, float y, int fontNum, char *text) - { - glEnable(GL_TEXTURE_2D); - glBindTexture(GL_TEXTURE_2D, font_tex); - glBegin(GL_QUADS); - while (*text) { - stbtt_aligned_quad q; - stbtt_GetPackedQuad(chardata[fontNum], BITMAP_W, BITMAP_H, *text++, &x, &y, &q, fontNum ? 0 : integer_align); - drawBoxTC(q.x0,q.y0,q.x1,q.y1, q.s0,q.t0,q.s1,q.t1); - } - glEnd(); - } - - print(100,160, 0, "This is a test"); -*/ -/* - font.numChars = 95; - font.charValues (int *)malloc(font.numChars*sizeof(int)); - font.charRecs = (Character *)malloc(font.numChars*sizeof(Character)); font.texture = LoadTextureFromImage(image); + UnloadImage(image); // Unloads dataGrayAlpha - //stbtt_aligned_quad letter; - //int x = 0, y = 0; - + font.size = fontSize; + font.numChars = FONT_NUM_CHARS; + font.charValues = (int *)malloc(font.numChars*sizeof(int)); + font.charRecs = (Rectangle *)malloc(font.numChars*sizeof(Rectangle)); + font.charOffsets = (Vector2 *)malloc(font.numChars*sizeof(Vector2)); + font.charAdvanceX = (int *)malloc(font.numChars*sizeof(int)); + for (int i = 0; i < font.numChars; i++) { - font.charValues[i] = i + 32; + font.charValues[i] = i + FONT_FIRST_CHAR; - //stbtt_GetPackedQuad(chardata[0], 512, 512, i, &x, &y, &letter, 0); - - font.charRecs[i].x = chardata[i + 32].x0; - font.charRecs[i].y = chardata[i + 32].y0; - font.charRecs[i].width = chardata[i + 32].x1 - chardata[i + 32].x0; - font.charRecs[i].height = chardata[i + 32].y1 - chardata[i + 32].y0; + font.charRecs[i].x = (int)charData[i].x0; + font.charRecs[i].y = (int)charData[i].y0; + font.charRecs[i].width = (int)charData[i].x1 - (int)charData[i].x0; + font.charRecs[i].height = (int)charData[i].y1 - (int)charData[i].y0; + + font.charOffsets[i] = (Vector2){ charData[i].xoff, charData[i].yoff }; + font.charAdvanceX[i] = (int)charData[i].xadvance; } -*/ - UnloadImage(image); return font; } \ No newline at end of file