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Reorganized internal funcs

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This commit is contained in:
raysan5 2016-05-03 17:54:50 +02:00
parent f2152aa391
commit e94acf86f8
1 changed files with 41 additions and 57 deletions
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98
src/text.c
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@ -69,8 +69,7 @@ static SpriteFont defaultFont; // Default font provided by raylib
//----------------------------------------------------------------------------------
// Module specific Functions Declaration
//----------------------------------------------------------------------------------
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 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)
@ -210,7 +209,7 @@ extern void LoadDefaultFont(void)
if (testPosX >= defaultFont.texture.width)
{
currentLine++;
currentPosX = 2 * charsDivisor + charsWidth[i];
currentPosX = 2*charsDivisor + charsWidth[i];
testPosX = currentPosX;
defaultFont.charRecs[i].x = charsDivisor;
@ -246,7 +245,7 @@ SpriteFont GetDefaultFont()
// Load a SpriteFont image into GPU memory
SpriteFont LoadSpriteFont(const char *fileName)
{
SpriteFont spriteFont;
SpriteFont spriteFont = { 0 };
// Check file extension
if (strcmp(GetExtension(fileName),"rbmf") == 0) spriteFont = LoadRBMF(fileName);
@ -255,36 +254,7 @@ SpriteFont LoadSpriteFont(const char *fileName)
else
{
Image image = LoadImage(fileName);
if (image.data != NULL)
{
// Process bitmap font pixel data to get characters measures
// spriteFont chars data is filled inside the function and memory is allocated!
int numChars = ParseImageData(image, &spriteFont.charValues, &spriteFont.charRecs);
TraceLog(DEBUG, "[%s] SpriteFont data parsed correctly", fileName);
TraceLog(DEBUG, "[%s] SpriteFont num chars detected: %i", fileName, numChars);
spriteFont.numChars = numChars;
spriteFont.texture = LoadTextureFromImage(image); // Convert loaded image to OpenGL texture
spriteFont.size = spriteFont.charRecs[0].height;
spriteFont.charOffsets = (Vector2 *)malloc(spriteFont.numChars*sizeof(Vector2));
spriteFont.charAdvanceX = (int *)malloc(spriteFont.numChars*sizeof(int));
for (int i = 0; i < spriteFont.numChars; i++)
{
// NOTE: On image based fonts (XNA style), character offsets and xAdvance are not required (set to 0)
spriteFont.charOffsets[i] = (Vector2){ 0.0f, 0.0f };
spriteFont.charAdvanceX[i] = 0;
}
}
else
{
TraceLog(WARNING, "[%s] SpriteFont could not be loaded, using default font", fileName);
spriteFont = GetDefaultFont();
}
if (image.data != NULL) spriteFont = LoadImageFont(image, MAGENTA, 32);
UnloadImage(image);
}
@ -309,7 +279,7 @@ void UnloadSpriteFont(SpriteFont spriteFont)
free(spriteFont.charOffsets);
free(spriteFont.charAdvanceX);
TraceLog(INFO, "Unloaded sprite font data");
TraceLog(DEBUG, "Unloaded sprite font data");
}
}
@ -517,15 +487,11 @@ void DrawFPS(int posX, int posY)
// Module specific Functions Definition
//----------------------------------------------------------------------------------
// Check if a pixel is magenta
static bool PixelIsMagenta(Color p)
// Load a Image font file (XNA style)
static SpriteFont LoadImageFont(Image image, Color key, int firstChar)
{
return ((p.r == 255) && (p.g == 0) && (p.b == 255) && (p.a == 255));
}
#define COLOR_EQUAL(col1, col2) ((col1.r == col2.r)&&(col1.g == col2.g)&&(col1.b == col2.b)&&(col1.a == col2.a))
// Parse image pixel data to obtain characters data (measures)
static int ParseImageData(Image image, int **charValues, Rectangle **charRecs)
{
int charSpacing = 0;
int lineSpacing = 0;
@ -539,13 +505,14 @@ static int ParseImageData(Image image, int **charValues, Rectangle **charRecs)
Color *pixels = GetImageData(image);
// Parse image data to get charSpacing and lineSpacing
for(y = 0; y < image.height; y++)
{
for(x = 0; x < image.width; x++)
{
if (!PixelIsMagenta(pixels[y*image.width + x])) break;
if (!COLOR_EQUAL(pixels[y*image.width + x], key)) break;
}
if (!PixelIsMagenta(pixels[y*image.width + x])) break;
if (!COLOR_EQUAL(pixels[y*image.width + x], key)) break;
}
charSpacing = x;
@ -554,7 +521,7 @@ static int ParseImageData(Image image, int **charValues, Rectangle **charRecs)
int charHeight = 0;
int j = 0;
while(!PixelIsMagenta(pixels[(lineSpacing + j)*image.width + charSpacing])) j++;
while(!COLOR_EQUAL(pixels[(lineSpacing + j)*image.width + charSpacing], key)) j++;
charHeight = j;
@ -563,12 +530,13 @@ static int ParseImageData(Image image, int **charValues, Rectangle **charRecs)
int lineToRead = 0;
int xPosToRead = charSpacing;
// Parse image data to get rectangle sizes
while((lineSpacing + lineToRead * (charHeight + lineSpacing)) < image.height)
{
while((xPosToRead < image.width) &&
!PixelIsMagenta((pixels[(lineSpacing + (charHeight+lineSpacing)*lineToRead)*image.width + xPosToRead])))
!COLOR_EQUAL((pixels[(lineSpacing + (charHeight+lineSpacing)*lineToRead)*image.width + xPosToRead]), key))
{
tempCharValues[index] = FONT_FIRST_CHAR + index;
tempCharValues[index] = firstChar + index;
tempCharRecs[index].x = xPosToRead;
tempCharRecs[index].y = lineSpacing + lineToRead * (charHeight + lineSpacing);
@ -576,7 +544,7 @@ static int ParseImageData(Image image, int **charValues, Rectangle **charRecs)
int charWidth = 0;
while(!PixelIsMagenta(pixels[(lineSpacing + (charHeight+lineSpacing)*lineToRead)*image.width + xPosToRead + charWidth])) charWidth++;
while(!COLOR_EQUAL(pixels[(lineSpacing + (charHeight+lineSpacing)*lineToRead)*image.width + xPosToRead + charWidth], key)) charWidth++;
tempCharRecs[index].width = charWidth;
@ -591,19 +559,34 @@ static int ParseImageData(Image image, int **charValues, Rectangle **charRecs)
free(pixels);
// We got tempCharValues and tempCharsRecs populated with chars data
// Now we move temp data to sized charValues and charRecs arrays (passed as parameter to the function)
// NOTE: This memory should be freed!
(*charRecs) = (Rectangle *)malloc(index*sizeof(Rectangle));
(*charValues) = (int *)malloc(index*sizeof(int));
TraceLog(DEBUG, "SpriteFont data parsed correctly from image");
for (int i = 0; i < index; i++)
// Create spritefont with all data parsed from image
SpriteFont spriteFont = { 0 };
spriteFont.texture = LoadTextureFromImage(image); // Convert loaded image to OpenGL texture
spriteFont.numChars = index;
// We got tempCharValues and tempCharsRecs populated with chars data
// Now we move temp data to sized charValues and charRecs arrays
spriteFont.charRecs = (Rectangle *)malloc(spriteFont.numChars*sizeof(Rectangle));
spriteFont.charValues = (int *)malloc(spriteFont.numChars*sizeof(int));
spriteFont.charOffsets = (Vector2 *)malloc(spriteFont.numChars*sizeof(Vector2));
spriteFont.charAdvanceX = (int *)malloc(spriteFont.numChars*sizeof(int));
for (int i = 0; i < spriteFont.numChars; i++)
{
(*charValues)[i] = tempCharValues[i];
(*charRecs)[i] = tempCharRecs[i];
spriteFont.charValues[i] = tempCharValues[i];
spriteFont.charRecs[i] = tempCharRecs[i];
// NOTE: On image based fonts (XNA style), character offsets and xAdvance are not required (set to 0)
spriteFont.charOffsets[i] = (Vector2){ 0.0f, 0.0f };
spriteFont.charAdvanceX[i] = 0;
}
return index;
spriteFont.size = spriteFont.charRecs[0].height;
return spriteFont;
}
// Load a rBMF font file (raylib BitMap Font)
@ -687,6 +670,7 @@ static SpriteFont LoadRBMF(const char *fileName)
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