Redefining Mobile Graphics Stack
- 1. Redefining Mobile Graphics Stack Ariya Hidayat
- 2. whoami
- 3. ariya hidayat 10+ years activity in FOSS was with Nokia, Qt now with Qualcomm Innovation Center
- 4. goals Share ideas! Provoke brainstroming!
- 5. share the love gitorious.org/qt-labs/graphics-dojo gitorious.org/ofi-labs/x2
- 6. hot devices
- 7. iPhone 3GS iPhone OS 3.1 320 × 480, 163 ppi OpenGL ES 2
- 8. Nexus One Android 2.1 480 × 800, 252 ppi OpenGL ES 2
- 9. Nokia N900 Maemo 5 800 × 480, 267 ppi OpenGL ES 2
- 10. pixel control
- 11. line drawing Bresenham line algorithm
- 12. anti-aliased line drawing Xiaolin Wu's line algorithm
- 15. transformation Scaling Rotation Perspective
- 17. optimizations
- 18. blazing fast recipes ● alternative/faster code path ● avoid text layout whenever possible ● malloc-free common operations ● auto-adjustment of quality vs speed
- 19. hardware support & abstraction pixmap GLtexture VGImage layer display list VGPath FBO optimize further with smart caching
- 20. use-cases guided profiling app -graphicssystem trace qttracereplay painting.trace cairo-trace –profile app cairo-perf-trace painting.trace
- 24. goodies
- 25. color spaces
- 27. Dean S. Pemberton Old St Paul’s
- 28. special effects
- 30. night mode
- 32. underwater effect remember Quake 1?
- 33. genie
- 34. (perceptive) faster response SVG up- and down-scaling optimize using tiles
- 35. progressive zoom user clicks “Zoom 2x” smooth scaled fast but “blocky”
- 36. shape morphing digital clock analog clock
- 37. physics
- 38. kinetic scrolling Mouse move Pressed Manual Scroll Mouse release Steady Mouse release Mouse move Auto Scroll Mouse press Stop Timer tick
- 39. easing curve Linear EaseInOut deacceleration acceleration
- 40. parallax effect
- 41. 2.5 dimension 215 lines of code
- 43. photo slide
- 44. network ubiquity
- 45. distributed system (autoreplication?) in some remote machine
- 47. element tagging clock weather launcher autozoom contact
- 48. voice recognition (for driving?)
- 49. spread the love
- 51. muito obrigado!