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Remove unnecessary and overcomplicated optimization in rotate.cpp (from legacy Allegro code)

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David Capello 2014-08-21 22:26:43 -03:00
parent 817fac5e6f
commit 31e6b31cd0
1 changed files with 3 additions and 10 deletions
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13
src/raster/rotate.cpp
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@ -19,15 +19,7 @@
#include <allegro.h>
#include <allegro/internal/aintern.h>
#include <math.h>
#ifndef _AL_SINCOS
#if defined (__i386__) && defined (__GNUC__)
#define _AL_SINCOS(x, s, c) __asm__ ("fsincos" : "=t" (c), "=u" (s) : "0" (x))
#else
#define _AL_SINCOS(x, s, c) do { (c) = cos(x); (s) = sin(x); } while (0)
#endif
#endif
#include <cmath>
namespace raster {
@ -747,7 +739,8 @@ static void ase_rotate_scale_flip_coordinates(fixed w, fixed h,
if (angle >= 0x800000)
angle -= 0x1000000;
_AL_SINCOS(angle * (PI / (double)0x800000), sin_angle, cos_angle);
cos_angle = cos(angle * (PI / (double)0x800000));
sin_angle = sin(angle * (PI / (double)0x800000));
if (cos_angle >= 0)
fix_cos = (int)(cos_angle * 0x10000 + 0.5);