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Some functions review

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This commit is contained in:
raysan5 2016-08-07 13:38:48 +02:00
parent cae209816c
commit f69f930b51
3 changed files with 44 additions and 35 deletions
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40
src/text.c
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@ -34,7 +34,7 @@
// Following libs are used on LoadTTF()
#define STB_TRUETYPE_IMPLEMENTATION
#include "external/stb_truetype.h" // Required for: stbtt_BakeFontBitmap()
#include "external/stb_truetype.h" // Required for: stbtt_BakeFontBitmap()
// Rectangle packing functions (not used at the moment)
//#define STB_RECT_PACK_IMPLEMENTATION
@ -43,8 +43,7 @@
//----------------------------------------------------------------------------------
// Defines and Macros
//----------------------------------------------------------------------------------
#define FONT_FIRST_CHAR 32
#define MAX_FONTCHARS 128
#define FONT_FIRST_CHAR 32 // NOTE: Expected first char for a sprite font
#define MAX_FORMATTEXT_LENGTH 64
#define MAX_SUBTEXT_LENGTH 64
@ -72,7 +71,9 @@ static SpriteFont defaultFont; // Default font provided by raylib
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)
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)
// Generate a sprite font image from TTF data
static SpriteFont LoadTTF(const char *fileName, int fontSize, int firstChar, int numChars);
extern void LoadDefaultFont(void);
extern void UnloadDefaultFont(void);
@ -245,16 +246,20 @@ SpriteFont GetDefaultFont()
// Load a SpriteFont image into GPU memory
SpriteFont LoadSpriteFont(const char *fileName)
{
// Default hardcoded values for ttf file loading
#define DEFAULT_TTF_FONTSIZE 32 // Font first character (32 - space)
#define DEFAULT_TTF_NUMCHARS 95 // ASCII 32..126 is 95 glyphs
SpriteFont spriteFont = { 0 };
// Check file extension
if (strcmp(GetExtension(fileName),"rbmf") == 0) spriteFont = LoadRBMF(fileName);
else if (strcmp(GetExtension(fileName),"ttf") == 0) spriteFont = LoadTTF(fileName, 32);
else if (strcmp(GetExtension(fileName),"ttf") == 0) spriteFont = LoadTTF(fileName, DEFAULT_TTF_FONTSIZE, FONT_FIRST_CHAR, DEFAULT_TTF_NUMCHARS);
else if (strcmp(GetExtension(fileName),"fnt") == 0) spriteFont = LoadBMFont(fileName);
else
{
Image image = LoadImage(fileName);
if (image.data != NULL) spriteFont = LoadImageFont(image, MAGENTA, 32);
if (image.data != NULL) spriteFont = LoadImageFont(image, MAGENTA, FONT_FIRST_CHAR);
UnloadImage(image);
}
@ -294,12 +299,12 @@ void DrawText(const char *text, int posX, int posY, int fontSize, Color color)
if (fontSize < defaultFontSize) fontSize = defaultFontSize;
int spacing = fontSize / defaultFontSize;
DrawTextEx(defaultFont, text, position, fontSize, spacing, color);
DrawTextEx(defaultFont, text, position, (float)fontSize, spacing, color);
}
// Draw text using SpriteFont
// NOTE: chars spacing is NOT proportional to fontSize
void DrawTextEx(SpriteFont spriteFont, const char *text, Vector2 position, int fontSize, int spacing, Color tint)
void DrawTextEx(SpriteFont spriteFont, const char *text, Vector2 position, float fontSize, int spacing, Color tint)
{
int length = strlen(text);
int textOffsetX = 0;
@ -309,7 +314,7 @@ void DrawTextEx(SpriteFont spriteFont, const char *text, Vector2 position, int f
Rectangle rec;
scaleFactor = (float)fontSize/spriteFont.size;
scaleFactor = 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)
@ -497,6 +502,9 @@ static SpriteFont LoadImageFont(Image image, Color key, int firstChar)
int x = 0;
int y = 0;
// Default number of characters expected supported
#define MAX_FONTCHARS 128
// We allocate a temporal arrays for chars data measures,
// once we get the actual number of chars, we copy data to a sized arrays
@ -634,7 +642,7 @@ static SpriteFont LoadRBMF(const char *fileName)
spriteFont.numChars = (int)rbmfHeader.numChars;
int numPixelBits = rbmfHeader.imgWidth * rbmfHeader.imgHeight / 32;
int numPixelBits = rbmfHeader.imgWidth*rbmfHeader.imgHeight/32;
rbmfFileData = (unsigned int *)malloc(numPixelBits * sizeof(unsigned int));
@ -843,17 +851,15 @@ static SpriteFont LoadBMFont(const char *fileName)
// 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)
static SpriteFont LoadTTF(const char *fileName, int fontSize, int firstChar, int numChars)
{
// 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
stbtt_bakedchar charData[numChars];
SpriteFont font = { 0 };
@ -868,7 +874,7 @@ static SpriteFont LoadTTF(const char *fileName, int fontSize)
fread(ttfBuffer, 1, 1<<25, ttfFile);
// 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);
stbtt_BakeFontBitmap(ttfBuffer,0, fontSize, dataBitmap, FONT_TEXTURE_WIDTH, FONT_TEXTURE_HEIGHT, firstChar, numChars, charData);
free(ttfBuffer);
@ -898,7 +904,7 @@ static SpriteFont LoadTTF(const char *fileName, int fontSize)
UnloadImage(image); // Unloads dataGrayAlpha
font.size = fontSize;
font.numChars = FONT_NUM_CHARS;
font.numChars = numChars;
font.charValues = (int *)malloc(font.numChars*sizeof(int));
font.charRecs = (Rectangle *)malloc(font.numChars*sizeof(Rectangle));
font.charOffsets = (Vector2 *)malloc(font.numChars*sizeof(Vector2));
@ -906,7 +912,7 @@ static SpriteFont LoadTTF(const char *fileName, int fontSize)
for (int i = 0; i < font.numChars; i++)
{
font.charValues[i] = i + FONT_FIRST_CHAR;
font.charValues[i] = i + firstChar;
font.charRecs[i].x = (int)charData[i].x0;
font.charRecs[i].y = (int)charData[i].y0;