Bitmap Font Rendering
Checklist for Writing Bitmap Fonts (1970s-1980s) Document bitmap font storage formats (BDF, PCF, custom binary) Explain glyph structure data organization and positioning metrics Detail 1-bit vs 8-bit storage efficiency and memory calculations Describe boolean matrix operations (get/set bit, bitmap conversion) Create rendering pipeline from bitmap to screen Explain texture atlas creation and optimization Analyze performance benefits (CPU vs GPU, cache efficiency) Document historical context (early terminals to modern usage) Write code examples (C structures, rendering functions) Compare advantages vs disadvantages with use cases Include technical terms (glyph, baseline, advance, kerning, hinting) Add mathematical formulas for storage calculations Bitmap Bitmap was introduced in 1970s. The idea is to fill colors in a grid of pixels to show the letter. A boolean matrix can be used where the background color represents true or 1 and the text color represents false or 0. In here the letters are made on a pixel grid of 16 X 20. Where the black colored cells are 1 and the non-black colored cells are 0.