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REVIEWED: LoadBMFont() PR

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This commit is contained in:
Ray 2023-12-15 18:00:02 +01:00
parent 146002fd3a
commit 7f3fcc44d1
1 changed files with 28 additions and 21 deletions
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49
src/rtext.c
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@ -2017,7 +2017,8 @@ static int GetLine(const char *origin, char *buffer, int maxLength)
// REQUIRES: strstr(), sscanf(), strrchr(), memcpy() // REQUIRES: strstr(), sscanf(), strrchr(), memcpy()
static Font LoadBMFont(const char *fileName) static Font LoadBMFont(const char *fileName)
{ {
#define MAX_BUFFER_SIZE 256 #define MAX_BUFFER_SIZE 256
#define MAX_FONT_IMAGE_PAGES 8
Font font = { 0 }; Font font = { 0 };
@ -2029,8 +2030,8 @@ static Font LoadBMFont(const char *fileName)
int imWidth = 0; int imWidth = 0;
int imHeight = 0; int imHeight = 0;
int totalPage = 1; // page variable int pageCount = 1;
char imFileName[10][129] = { 0 }; // up to ten png file. char imFileName[MAX_FONT_IMAGE_PAGES][129] = { 0 };
int base = 0; // Useless data int base = 0; // Useless data
int readBytes = 0; // Data bytes read int readBytes = 0; // Data bytes read
@ -2049,12 +2050,18 @@ static Font LoadBMFont(const char *fileName)
// Read line data // Read line data
readBytes = GetLine(fileTextPtr, buffer, MAX_BUFFER_SIZE); readBytes = GetLine(fileTextPtr, buffer, MAX_BUFFER_SIZE);
searchPoint = strstr(buffer, "lineHeight"); searchPoint = strstr(buffer, "lineHeight");
readVars = sscanf(searchPoint, "lineHeight=%i base=%i scaleW=%i scaleH=%i pages=%i", &fontSize, &base, &imWidth, &imHeight, &totalPage); readVars = sscanf(searchPoint, "lineHeight=%i base=%i scaleW=%i scaleH=%i pages=%i", &fontSize, &base, &imWidth, &imHeight, &pageCount);
fileTextPtr += (readBytes + 1); fileTextPtr += (readBytes + 1);
if (readVars < 4) { UnloadFileText(fileText); return font; } // Some data not available, file malformed if (readVars < 4) { UnloadFileText(fileText); return font; } // Some data not available, file malformed
for (int i = 0; i < totalPage; i++) if (pageCount > MAX_FONT_IMAGE_PAGES)
{
TRACELOG(LOG_WARNING, "FONT: [%s] Font defines more pages than supported: %i/%i", fileName, pageCount, MAX_FONT_IMAGE_PAGES);
pageCount = MAX_FONT_IMAGE_PAGES;
}
for (int i = 0; i < pageCount; i++)
{ {
readBytes = GetLine(fileTextPtr, buffer, MAX_BUFFER_SIZE); readBytes = GetLine(fileTextPtr, buffer, MAX_BUFFER_SIZE);
searchPoint = strstr(buffer, "file"); searchPoint = strstr(buffer, "file");
@ -2074,9 +2081,9 @@ static Font LoadBMFont(const char *fileName)
// Compose correct path using route of .fnt file (fileName) and imFileName // Compose correct path using route of .fnt file (fileName) and imFileName
char **imPath; char **imPath;
char *lastSlash = NULL; char *lastSlash = NULL;
imPath = malloc(sizeof(char) * 100); // imPath Initialization imPath = (char **)RL_CALLOC(MAX_FONT_IMAGE_PAGES, sizeof(char *));
for (int i = 0; i< totalPage; i++) for (int i = 0; i < pageCount; i++)
{ {
lastSlash = strrchr(fileName, '/'); lastSlash = strrchr(fileName, '/');
if (lastSlash == NULL) lastSlash = strrchr(fileName, '\\'); if (lastSlash == NULL) lastSlash = strrchr(fileName, '\\');
@ -2090,15 +2097,15 @@ static Font LoadBMFont(const char *fileName)
} }
else imPath[i] = imFileName[i]; else imPath[i] = imFileName[i];
TRACELOGD(" > Image loading path: %s", imPath[i]); TRACELOGD(" > Image loading path: %s", imPath[i]);
} }
// Resize and ReDraw Font Image // Resize and ReDraw Font Image
Image fullFont = LoadImage(imPath[0]);; Image fullFont = LoadImage(imPath[0]);;
Image imFont[totalPage]; // font atlas Image imFont[pageCount] = { 0 }; // Font atlases, multiple images
for (int i = 0; i < totalPage; i++) for (int i = 0; i < pageCount; i++)
{ {
imFont[i] = LoadImage(imPath[i]); imFont[i] = LoadImage(imPath[i]);
@ -2129,23 +2136,22 @@ static Font LoadBMFont(const char *fileName)
fullFont = imFont[0]; fullFont = imFont[0];
// If multiple atlas, then merge atlas // If multiple atlas, then merge atlas
if (totalPage > 1) // NOTE: WARNING: This process could be really slow!
if (pageCount > 1)
{ {
// Resize and ReDraw Font Image // Resize font atlas to draw additional images
ImageResizeCanvas(&fullFont, imWidth, imHeight * totalPage, 0, 0, BLACK); ImageResizeCanvas(&fullFont, imWidth, imHeight*pageCount, 0, 0, BLACK);
for (int index = 1; index <= totalPage; index++) for (int i = 1; i < pageCount; i++)
{ {
Rectangle srcRec = { 0.0f, 0.0f, (float)imWidth, (float)imHeight}; Rectangle srcRec = { 0.0f, 0.0f, (float)imWidth, (float)imHeight };
Rectangle destRec = { 0.0f, (float)imHeight * (float)index, (float)imWidth, (float)imHeight}; Rectangle destRec = { 0.0f, (float)imHeight*(float)i, (float)imWidth, (float)imHeight };
ImageDraw(&fullFont, imFont[index], srcRec, destRec, WHITE); ImageDraw(&fullFont, imFont[i], srcRec, destRec, WHITE);
} }
} }
font.texture = LoadTextureFromImage(fullFont); font.texture = LoadTextureFromImage(fullFont);
// Fill font characters info data // Fill font characters info data
font.baseSize = fontSize; font.baseSize = fontSize;
font.glyphCount = glyphCount; font.glyphCount = glyphCount;
@ -2165,7 +2171,7 @@ static Font LoadBMFont(const char *fileName)
if (readVars == 9) // Make sure all char data has been properly read if (readVars == 9) // Make sure all char data has been properly read
{ {
// Get character rectangle in the font atlas texture // Get character rectangle in the font atlas texture
font.recs[i] = (Rectangle){ (float)charX, (float)charY + (float)imHeight * pageID, (float)charWidth, (float)charHeight }; font.recs[i] = (Rectangle){ (float)charX, (float)charY + (float)imHeight*pageID, (float)charWidth, (float)charHeight };
// Save data properly in sprite font // Save data properly in sprite font
font.glyphs[i].value = charId; font.glyphs[i].value = charId;
@ -2190,7 +2196,8 @@ static Font LoadBMFont(const char *fileName)
} }
else TRACELOG(LOG_INFO, "FONT: [%s] Font loaded successfully (%i glyphs)", fileName, font.glyphCount); else TRACELOG(LOG_INFO, "FONT: [%s] Font loaded successfully (%i glyphs)", fileName, font.glyphCount);
free(imPath); RL_FREE(imPath);
return font; return font;
} }