[feature] font rendering done

1 files changed, 103 insertions, 95 deletions

diff --git a/fbgl.h b/fbgl.h
index 1edf676..f34bca0 100644
--- a/fbgl.h
+++ b/fbgl.h
@@ -82,12 +82,12 @@ typedef struct fbgl_tga_texture {
 } fbgl_tga_texture_t;
 
 typedef struct fbgl_psf1_font {
-    uint8_t magic[2];       // Magic number (0x36, 0x04 for PSF1)
-    uint8_t mode;           // Mode (0 = 256 glyphs, 1 = 512 glyphs)
-    uint8_t char_height;    // Character height in pixels
-    uint8_t *glyphs;        // Pointer to glyph data
-    uint16_t glyph_count;   // Number of glyphs (calculated from mode)
-    uint16_t char_width;    // Character width in pixels (always 8 for PSF1)
+	uint8_t magic[2]; // Magic number (0x36, 0x04 for PSF1)
+	uint8_t mode; // Mode (0 = 256 glyphs, 1 = 512 glyphs)
+	uint8_t char_height; // Character height in pixels
+	uint8_t *glyphs; // Pointer to glyph data
+	uint16_t glyph_count; // Number of glyphs (calculated from mode)
+	uint16_t char_width; // Character width in pixels (always 8 for PSF1)
 } fbgl_psf1_font_t;
 
 typedef struct fbgl_keyboard {
@@ -623,107 +623,115 @@ float fbgl_get_fps(void)
 	}
 }
 
-fbgl_psf1_font_t *fbgl_load_psf1_font(const char *path) {
-    FILE *file = fopen(path, "rb");
-    if (!file) {
-        perror("Failed to open font file");
-        return NULL;
-    }
-
-    // Allocate memory for the font structure
-    fbgl_psf1_font_t *font = malloc(sizeof(fbgl_psf1_font_t));
-    if (!font) {
-        perror("Failed to allocate memory for font");
-        fclose(file);
-        return NULL;
-    }
-
-    // Read the header (4 bytes)
-    uint8_t header[4];
-    if (fread(header, 1, sizeof(header), file) != sizeof(header)) {
-        perror("Failed to read font header");
-        free(font);
-        fclose(file);
-        return NULL;
-    }
-
-    // Verify magic number
-    if (header[0] != 0x36 || header[1] != 0x04) {
-        fprintf(stderr, "Invalid PSF1 magic number\n");
-        free(font);
-        fclose(file);
-        return NULL;
-    }
-
-    // Populate the font structure
-    font->magic[0] = header[0];
-    font->magic[1] = header[1];
-    font->mode = header[2];
-    font->char_height = header[3];
-    font->glyph_count = (font->mode & 0x01) ? 512 : 256; // Determine glyph count
-    font->char_width = 8; // PSF1 glyphs are always 8 pixels wide
-
-    // Allocate memory for glyphs
-    size_t glyph_data_size = font->glyph_count * font->char_height;
-    font->glyphs = malloc(glyph_data_size);
-    if (!font->glyphs) {
-        perror("Failed to allocate memory for glyphs");
-        free(font);
-        fclose(file);
-        return NULL;
-    }
-
-    // Read glyph data
-    if (fread(font->glyphs, 1, glyph_data_size, file) != glyph_data_size) {
-        perror("Failed to read glyph data");
-        free(font->glyphs);
-        free(font);
-        fclose(file);
-        return NULL;
-    }
-
-    fclose(file);
-    return font;
+fbgl_psf1_font_t *fbgl_load_psf1_font(const char *path)
+{
+	FILE *file = fopen(path, "rb");
+	if (!file) {
+		perror("Failed to open font file");
+		return NULL;
+	}
+
+	// Allocate memory for the font structure
+	fbgl_psf1_font_t *font = malloc(sizeof(fbgl_psf1_font_t));
+	if (!font) {
+		perror("Failed to allocate memory for font");
+		fclose(file);
+		return NULL;
+	}
+
+	// Read the header (4 bytes)
+	uint8_t header[4];
+	if (fread(header, 1, sizeof(header), file) != sizeof(header)) {
+		perror("Failed to read font header");
+		free(font);
+		fclose(file);
+		return NULL;
+	}
+
+	// Verify magic number
+	if (header[0] != 0x36 || header[1] != 0x04) {
+		fprintf(stderr, "Invalid PSF1 magic number\n");
+		free(font);
+		fclose(file);
+		return NULL;
+	}
+
+	// Populate the font structure
+	font->magic[0] = header[0];
+	font->magic[1] = header[1];
+	font->mode = header[2];
+	font->char_height = header[3];
+	font->glyph_count = (font->mode & 0x01) ? 512 :
+						  256; // Determine glyph count
+	font->char_width = 8; // PSF1 glyphs are always 8 pixels wide
+
+	// Allocate memory for glyphs
+	size_t glyph_data_size = font->glyph_count * font->char_height;
+	font->glyphs = malloc(glyph_data_size);
+	if (!font->glyphs) {
+		perror("Failed to allocate memory for glyphs");
+		free(font);
+		fclose(file);
+		return NULL;
+	}
+
+	// Read glyph data
+	if (fread(font->glyphs, 1, glyph_data_size, file) != glyph_data_size) {
+		perror("Failed to read glyph data");
+		free(font->glyphs);
+		free(font);
+		fclose(file);
+		return NULL;
+	}
+
+	fclose(file);
+	return font;
 }
 
-void fbgl_destroy_psf1_font(fbgl_psf1_font_t *font) {
-    if (font) {
-        free(font->glyphs);
-        free(font);
-    }
+void fbgl_destroy_psf1_font(fbgl_psf1_font_t *font)
+{
+	if (font) {
+		free(font->glyphs);
+		free(font);
+	}
 }
 
-void fbgl_render_psf1_text(fbgl_t *fb, fbgl_psf1_font_t *font, const char *text, int x, int y, uint32_t color) {
-    if (!fb || !font || !text) return;
+void fbgl_render_psf1_text(fbgl_t *fb, fbgl_psf1_font_t *font, const char *text,
+			   int x, int y, uint32_t color)
+{
+	if (!fb || !font || !text)
+		return;
 
-    int cursor_x = x;
-    int cursor_y = y;
+	int cursor_x = x;
+	int cursor_y = y;
 
-    for (const char *c = text; *c; c++) {
-        uint8_t glyph_index = (uint8_t)*c;
+	for (const char *c = text; *c; c++) {
+		uint8_t glyph_index = (uint8_t)*c;
 
-        // Ensure glyph index is within range
-        if (glyph_index >= font->glyph_count) glyph_index = 0; // Default to space or undefined glyph
+		// Ensure glyph index is within range
+		if (glyph_index >= font->glyph_count)
+			glyph_index = 0; // Default to space or undefined glyph
 
-        // Locate the glyph in the glyph table
-        uint8_t *glyph = font->glyphs + glyph_index * font->char_height;
+		// Locate the glyph in the glyph table
+		uint8_t *glyph = font->glyphs + glyph_index * font->char_height;
 
-        // Render the glyph
-        for (int row = 0; row < font->char_height; row++) {
-            for (int col = 0; col < font->char_width; col++) {
-                // Check if the bit is set in the glyph
-                if (glyph[row] & (0x80 >> col)) {
-                    fbgl_put_pixel(cursor_x + col, cursor_y + row, color, fb);
-                }
-            }
-        }
+		// Render the glyph
+		for (int row = 0; row < font->char_height; row++) {
+			for (int col = 0; col < font->char_width; col++) {
+				// Check if the bit is set in the glyph
+				if (glyph[row] & (0x80 >> col)) {
+					fbgl_put_pixel(cursor_x + col,
+						       cursor_y + row, color,
+						       fb);
+				}
+			}
+		}
 
-        // Move to the next character position
-        cursor_x += font->char_width;
-    }
+		// Move to the next character position
+		cursor_x += font->char_width;
+	}
 }
 
-
 #endif // FBGL_IMPLEMENTATION
 
 #ifdef __cplusplus