twix/raylib
1
0
Fork 0
mirror of https://github.com/raysan5/raylib.git synced 2026-01-22 07:09:18 -05:00
Code Issues Packages Projects Releases Wiki Activity

REVIEWED: ExportFontAsCode() #5497

Browse Source
This commit is contained in:
Ray
2026-01-15 10:42:58 +01:00
parent a938a7c97a
commit 0df2fe981b
1 changed files with 19 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
src/rtext.c
View File

@ -1044,15 +1044,26 @@ bool ExportFontAsCode(Font font, const char *fileName)
#define TEXT_BYTES_PER_LINE 20
#endif
#define MAX_FONT_DATA_SIZE 1024*1024 // 1 MB
// Get file name from path
char fileNamePascal[256] = { 0 };
strncpy(fileNamePascal, TextToPascal(GetFileNameWithoutExt(fileName)), 256 - 1);
// Get font atlas image and size, required to estimate code file size
// NOTE: This mechanism is highly coupled to raylib
Image image = LoadImageFromTexture(font.texture);
if (image.format != PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA) TRACELOG(LOG_WARNING, "Font export as code: Font image format is not GRAY+ALPHA!");
int imageDataSize = GetPixelDataSize(image.width, image.height, image.format);
// NOTE: Text data buffer size is estimated considering image data size in bytes
// and requiring 6 char bytes for every byte: "0x00, "
char *txtData = (char *)RL_CALLOC(MAX_FONT_DATA_SIZE, sizeof(char));
// Image data is usually GRAYSCALE + ALPHA and can be reduced to GRAYSCALE
//ImageFormat(&image, PIXELFORMAT_UNCOMPRESSED_GRAYSCALE);
// Estimate text code size
// - Image data is stored as "0x%02x", so it requires at least 4 char per byte, let's use 6
// - font.recs[] data is stored as "{ %1.0f, %1.0f, %1.0f , %1.0f }", let's reserve 64 per rec
// - font.glyphs[] data is stored as "{ %i, %i, %i, %i, { 0 }},\n", let's reserve 64 per glyph
// - Comments and additional code, let's reserve 32KB
int txtDataSize = imageDataSize*6 + font.glyphCount*64 + font.glyphCount*64 + 32768;
char *txtData = (char *)RL_CALLOC(txtDataSize, sizeof(char));
int byteCount = 0;
byteCount += sprintf(txtData + byteCount, "////////////////////////////////////////////////////////////////////////////////////////\n");
@ -1074,15 +1085,6 @@ bool ExportFontAsCode(Font font, const char *fileName)
byteCount += sprintf(txtData + byteCount, "// //\n");
byteCount += sprintf(txtData + byteCount, "////////////////////////////////////////////////////////////////////////////////////////\n\n");
// Support font export and initialization
// NOTE: This mechanism is highly coupled to raylib
Image image = LoadImageFromTexture(font.texture);
if (image.format != PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA) TRACELOG(LOG_WARNING, "Font export as code: Font image format is not GRAY+ALPHA!");
int imageDataSize = GetPixelDataSize(image.width, image.height, image.format);
// Image data is usually GRAYSCALE + ALPHA and can be reduced to GRAYSCALE
//ImageFormat(&image, PIXELFORMAT_UNCOMPRESSED_GRAYSCALE);
#define SUPPORT_COMPRESSED_FONT_ATLAS
#if defined(SUPPORT_COMPRESSED_FONT_ATLAS)
// WARNING: Data is compressed using raylib CompressData() DEFLATE,
@ -1120,8 +1122,7 @@ bool ExportFontAsCode(Font font, const char *fileName)
byteCount += sprintf(txtData + byteCount, "};\n\n");
// Save font glyphs data
// NOTE: Glyphs image data not saved (grayscale pixels),
// it could be generated from image and recs
// NOTE: Glyphs image data not saved (grayscale pixels), it could be generated from image and recs
byteCount += sprintf(txtData + byteCount, "// Font glyphs info data\n");
byteCount += sprintf(txtData + byteCount, "// NOTE: No glyphs.image data provided\n");
byteCount += sprintf(txtData + byteCount, "static GlyphInfo fontGlyphs_%s[%i] = {\n", fileNamePascal, font.glyphCount);
@ -1152,8 +1153,8 @@ bool ExportFontAsCode(Font font, const char *fileName)
#if defined(SUPPORT_COMPRESSED_FONT_ATLAS)
byteCount += sprintf(txtData + byteCount, " UnloadImage(imFont); // Uncompressed data can be unloaded from memory\n\n");
#endif
// We have two possible mechanisms to assign font.recs and font.glyphs data,
// that data is already available as global arrays, we two options to assign that data:
// There are two possible mechanisms to assign font.recs and font.glyphs data,
// that data is already available as global arrays, two options to assign that data:
// - 1. Data copy. This option consumes more memory and Font MUST be unloaded by user, requiring additional code
// - 2. Data assignment. This option consumes less memory and Font MUST NOT be unloaded by user because data is on protected DATA segment
//#define SUPPORT_FONT_DATA_COPY