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quake: merge some fixed-point optimizations from PocketQuake

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The PocketQuake project, available below, has some nice fixed-point code:

https://web.archive.org/web/20150412233306/http://quake.pocketmatrix.com/PocketQuake0062_src.zip

I'd like to see most of them merged into our Quake port. This commit
gives +0.9FPS on ipod6g. (A big change given that it was running at
only 9.7FPS to begin with!)

Change-Id: I91931bdd5c22f14fb28616de938a03b4e7d7b076
This commit is contained in:
Franklin Wei 2019-08-09 20:08:10 -04:00
parent 3fffabf50d
commit ee70dad305
10 changed files with 866 additions and 6 deletions
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13
apps/plugins/sdl/progs/quake/mathlib.h
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@ -19,6 +19,19 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// mathlib.h
//Dan East:
#include "FixedPointMath.h"
#ifdef USE_PQ_OPT
typedef int fpvec3[3];
#endif
typedef fixedpoint_t vec3_FPM_t[3];
typedef fixedpoint8_24_t vec3_8_24FPM_t[3];
typedef fixedpoint_t vec5_FPM_t[5];
//End Dan
typedef float vec_t;
typedef vec_t vec3_t[3];
typedef vec_t vec5_t[5];