Google Git
Sign in
android / platform / frameworks / rs / e7fd36a
commite7fd36a8ed1cdaf939852c08835d5c6b8e0eca01[log] [tgz]
authorYang Ni <yangni@google.com>Mon Feb 01 10:42:29 2016 -0800
committerYang Ni <yangni@google.com>Mon Feb 01 15:39:47 2016 -0800
treed3c2063a79825d5a0c6843cfbf985487ce3680da
parente961168a5f47a4ad348b6241dac26a0758980024 [diff]
Fixed rsQuaternionAdd() implementation

Bug: 26272685

We use float4 to represent a quaternion, in which
a float4 q = (x,y,z,w) represents quaternion
wi + xj + yk + zl.

According to Wikipedia and Wolfram, the addition of two quaternions
q and r should be defined as the following
(q.w+r.w)i + (q.x+r.x)j + (q.y+q.y)k + (q.z+r.z)l,
using the above representation of quaternions.

https://en.wikipedia.org/wiki/Quaternion
http://mathworld.wolfram.com/Quaternion.html

Change-Id: I07837b266f51b664bed2dc50b9ff71ba375f5aaf
2 files changed
tree: d3c2063a79825d5a0c6843cfbf985487ce3680da
  1. api/
  2. cpp/
  3. cpu_ref/
  4. driver/
  5. java/
  6. scriptc/
  7. server/
  8. tests/
  9. Android.mk
  10. CleanSpec.mk
  11. rs.h
  12. rs.spec
  13. rs_compat.spec
  14. rs_hal.h
  15. rsAllocation.cpp
  16. rsAllocation.h
  17. rsAnimation.cpp
  18. rsAnimation.h
  19. rsClosure.cpp
  20. rsClosure.h
  21. rsCompatibilityLib.cpp
  22. rsCompatibilityLib.h
  23. rsComponent.cpp
  24. rsComponent.h
  25. rsContext.cpp
  26. rsContext.h
  27. rsCppUtils.cpp
  28. rsCppUtils.h
  29. rsDebugHelper.h
  30. rsDefines.h
  31. rsDevice.cpp
  32. rsDevice.h
  33. rsDriverLoader.cpp
  34. rsElement.cpp
  35. rsElement.h
  36. rsEnv.h
  37. rsFBOCache.cpp
  38. rsFBOCache.h
  39. rsFifo.h
  40. rsFifoSocket.cpp
  41. rsFifoSocket.h
  42. rsFileA3D.cpp
  43. rsFileA3D.h
  44. rsFont.cpp
  45. rsFont.h
  46. rsg.spec
  47. rsg_generator.c
  48. rsgApi.cpp.rsg
  49. rsgApiFuncDecl.h.rsg
  50. rsgApiReplay.cpp.rsg
  51. rsgApiStructs.h.rsg
  52. rsGrallocConsumer.cpp
  53. rsGrallocConsumer.h
  54. rsInternalDefines.h
  55. rsList.h
  56. rsMap.h
  57. rsMatrix2x2.cpp
  58. rsMatrix2x2.h
  59. rsMatrix3x3.cpp
  60. rsMatrix3x3.h
  61. rsMatrix4x4.cpp
  62. rsMatrix4x4.h
  63. rsMesh.cpp
  64. rsMesh.h
  65. rsMutex.cpp
  66. rsMutex.h
  67. rsObjectBase.cpp
  68. rsObjectBase.h
  69. rsProgram.cpp
  70. rsProgram.h
  71. rsProgramBase.h
  72. rsProgramFragment.cpp
  73. rsProgramFragment.h
  74. rsProgramRaster.cpp
  75. rsProgramRaster.h
  76. rsProgramStore.cpp
  77. rsProgramStore.h
  78. rsProgramVertex.cpp
  79. rsProgramVertex.h
  80. rsRuntime.h
  81. rsSampler.cpp
  82. rsSampler.h
  83. rsScript.cpp
  84. rsScript.h
  85. rsScriptC.cpp
  86. rsScriptC.h
  87. rsScriptC_Lib.cpp
  88. rsScriptC_LibGL.cpp
  89. rsScriptGroup.cpp
  90. rsScriptGroup.h
  91. rsScriptGroup2.cpp
  92. rsScriptGroup2.h
  93. rsScriptGroupBase.h
  94. rsScriptIntrinsic.cpp
  95. rsScriptIntrinsic.h
  96. rsSignal.cpp
  97. rsSignal.h
  98. rsStream.cpp
  99. rsStream.h
  100. rsThreadIO.cpp
  101. rsThreadIO.h
  102. rsType.cpp
  103. rsType.h
  104. rsUtils.h
  105. run_rs_cts.sh
  106. spec.h
  107. spec.l
  108. update_rs_prebuilts.sh