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Redefining Mobile Graphics Stack

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"Redefining Mobile Graphics Stack" is a talk delivered by Ariya Hidayat for Bossa Conference '10 in Manaus, Brazil

Published in: Technology, Art & Photos

Redefining Mobile Graphics Stack

  1. 1. Redefining Mobile Graphics Stack Ariya Hidayat
  2. 2. whoami
  3. 3. ariya hidayat 10+ years activity in FOSS was with Nokia, Qt now with Qualcomm Innovation Center
  4. 4. goals Share ideas! Provoke brainstroming!
  5. 5. share the love gitorious.org/qt-labs/graphics-dojo gitorious.org/ofi-labs/x2
  6. 6. hot devices
  7. 7. iPhone 3GS iPhone OS 3.1 320 × 480, 163 ppi OpenGL ES 2
  8. 8. Nexus One Android 2.1 480 × 800, 252 ppi OpenGL ES 2
  9. 9. Nokia N900 Maemo 5 800 × 480, 267 ppi OpenGL ES 2
  10. 10. pixel control
  11. 11. line drawing Bresenham line algorithm
  12. 12. anti-aliased line drawing Xiaolin Wu's line algorithm
  13. 13. polygon rasterization
  14. 14. path rasterization
  15. 15. transformation Scaling Rotation Perspective
  16. 16. perspective transformation
  17. 17. optimizations
  18. 18. blazing fast recipes ● alternative/faster code path ● avoid text layout whenever possible ● malloc-free common operations ● auto-adjustment of quality vs speed
  19. 19. hardware support & abstraction pixmap GLtexture VGImage layer display list VGPath FBO optimize further with smart caching
  20. 20. use-cases guided profiling app -graphicssystem trace qttracereplay painting.trace cairo-trace –profile app cairo-perf-trace painting.trace
  21. 21. multithreaded painting
  22. 22. multithreaded painting
  23. 23. efficient animation
  24. 24. goodies
  25. 25. color spaces
  26. 26. high-dynamic range
  27. 27. Dean S. Pemberton Old St Paul’s
  28. 28. special effects
  29. 29. lighting & shadow
  30. 30. night mode
  31. 31. geometrical deformation
  32. 32. underwater effect remember Quake 1?
  33. 33. genie
  34. 34. (perceptive) faster response SVG up- and down-scaling optimize using tiles
  35. 35. progressive zoom user clicks “Zoom 2x” smooth scaled fast but “blocky”
  36. 36. shape morphing digital clock analog clock
  37. 37. physics
  38. 38. kinetic scrolling Mouse move Pressed Manual Scroll Mouse release Steady Mouse release Mouse move Auto Scroll Mouse press Stop Timer tick
  39. 39. easing curve Linear EaseInOut deacceleration acceleration
  40. 40. parallax effect
  41. 41. 2.5 dimension 215 lines of code
  42. 42. 2-d physics engine
  43. 43. photo slide
  44. 44. network ubiquity
  45. 45. distributed system (autoreplication?) in some remote machine
  46. 46. assistive technology
  47. 47. element tagging clock weather launcher autozoom contact
  48. 48. voice recognition (for driving?)
  49. 49. spread the love
  50. 50. gitorious.org/ofi-labs/x2
  51. 51. muito obrigado!

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