rajan gill
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fdac44d193
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include/fixedmath.h: Regarding the single precision float to/from fixed point conversions in fixedmath.h, I believe the floating point literals should be appended with the letter 'f' to avoid (expensive) conversions from single to double precision, and thereby also avoid (expensive if done in SW) double point arithmetic (which is what is happening upon inspection of my disassembly).
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2019-07-11 15:13:02 -06:00 |
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Gregory Nutt
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42628d2209
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include/fixedmath.h: Add macros for conversion between types b16_t and type double
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2019-03-16 13:04:03 -06:00 |
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Jussi Kivilinna
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afc46cb7ba
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fixedmath: add square root and b32_t conversion operators
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2017-05-04 06:50:08 -06:00 |
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Gregory Nutt
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0f90500f72
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Standardize the width of all comment boxes in header files
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2015-10-02 17:48:24 -06:00 |
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Gregory Nutt
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4bcd13eabd
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Add RGB blending logic needed to support anti-aliasing
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2015-07-14 07:57:54 -06:00 |
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Gregory Nutt
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f6d11bc2fd
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Back out an incorrect change
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2014-10-12 11:01:57 -06:00 |
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Gregory Nutt
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872e9fce26
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Cosmetic update to comments
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2014-10-12 10:53:29 -06:00 |
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Gregory Nutt
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a41c1de32c
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Add basic data structures that will allow us to move named semaphore support out of the OS and into the VFS (not complete).
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2014-09-28 10:15:33 -06:00 |
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patacongo
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8e5733ae3f
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Header file clean-up
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4948 42af7a65-404d-4744-a932-0658087f49c3
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2012-07-17 03:58:11 +00:00 |
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patacongo
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dc3c6ea49f
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Fix numerous errors in trapezoid rendering and wide line drawing algorithms
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3841 42af7a65-404d-4744-a932-0658087f49c3
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2011-08-03 21:49:31 +00:00 |
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patacongo
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a203a142f3
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Add fixed precision atan2() function
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3834 42af7a65-404d-4744-a932-0658087f49c3
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2011-08-01 23:09:11 +00:00 |
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patacongo
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92b110e0e2
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Changing NuttX fixed size type names to C99 standard names -- things will be broken for awhile
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2335 42af7a65-404d-4744-a932-0658087f49c3
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2009-12-14 15:46:55 +00:00 |
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patacongo
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586f69da53
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Add fixed precision sin() and cos()
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1342 42af7a65-404d-4744-a932-0658087f49c3
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2008-11-29 01:19:35 +00:00 |
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patacongo
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a9b1526a37
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Beginning of a graphics library
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1305 42af7a65-404d-4744-a932-0658087f49c3
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2008-11-25 21:58:35 +00:00 |
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patacongo
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3bc671c081
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Add fixed precision math support
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1304 42af7a65-404d-4744-a932-0658087f49c3
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2008-11-25 20:53:12 +00:00 |