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Reduce some double-precision constants

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This commit is contained in:
Steven Robertson
2011-06-13 00:48:31 -04:00
parent 131ce96263
commit 5ebf62b1a3
3 changed files with 33 additions and 5 deletions
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4
cuburn/code/filtering.py
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@ -116,8 +116,8 @@ void logscale(float4 *pixbuf, float4 *outbuf, float k1, float k2) {
// See helpers/filt_err.py for source of these values. // See helpers/filt_err.py for source of these values.
#define MIN_SD 0.23299530 #define MIN_SD 0.23299530f
#define MAX_SD 4.33333333 #define MAX_SD 4.33333333f
__global__ __global__
void density_est(float4 *pixbuf, float4 *outbuf, float *denbuf, void density_est(float4 *pixbuf, float4 *outbuf, float *denbuf,

28
cuburn/code/util.py
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@ -50,6 +50,34 @@ class BaseCode(HunkOCode):
""" """
defs = """ defs = """
#undef M_E
#undef M_LOG2E
#undef M_LOG10E
#undef M_LN2
#undef M_LN10
#undef M_PI
#undef M_PI_2
#undef M_PI_4
#undef M_1_PI
#undef M_2_PI
#undef M_2_SQRTPI
#undef M_SQRT2
#undef M_SQRT1_2
#define M_E 2.71828174591064f
#define M_LOG2E 1.44269502162933f
#define M_LOG10E 0.43429449200630f
#define M_LN2 0.69314718246460f
#define M_LN10 2.30258512496948f
#define M_PI 3.14159274101257f
#define M_PI_2 1.57079637050629f
#define M_PI_4 0.78539818525314f
#define M_1_PI 0.31830987334251f
#define M_2_PI 0.63661974668503f
#define M_2_SQRTPI 1.12837922573090f
#define M_SQRT2 1.41421353816986f
#define M_SQRT1_2 0.70710676908493f
// TODO: use launch parameter preconfig to eliminate unnecessary parts // TODO: use launch parameter preconfig to eliminate unnecessary parts
__device__ __device__
uint32_t gtid() { uint32_t gtid() {

6
cuburn/code/variations.py
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@ -250,7 +250,7 @@ var(30, 'perspective', """
float pvfcos = {{px.get( float pvfcos = {{px.get(
'xf.perspective_dist*np.cos(xf.perspective_angle*np.pi/2)', 'pvfcos')}}; 'xf.perspective_dist*np.cos(xf.perspective_angle*np.pi/2)', 'pvfcos')}};
float t = 1.0 / (pdist - ty * pvsin); float t = 1.0f / (pdist - ty * pvsin);
ox += w * pdist * tx * t; ox += w * pdist * tx * t;
oy += w * pvfcos * ty * t; oy += w * pvfcos * ty * t;
""") """)
@ -503,7 +503,7 @@ var(55, 'bipolar', """
float t = x2y2 + 1.0f; float t = x2y2 + 1.0f;
float x2 = tx * 2.0f; float x2 = tx * 2.0f;
float ps = -M_PI_2 * {{px.get('xf.bipolar_shift')}} float ps = -M_PI_2 * {{px.get('xf.bipolar_shift')}}
float y = 0.5 * atan2f(2.0f * ty, x2y2 - 1.0f) + ps; float y = 0.5f * atan2f(2.0f * ty, x2y2 - 1.0f) + ps;
if (y > M_PI_2) if (y > M_PI_2)
y = -M_PI_2 + fmodf(y + M_PI_2, M_PI); y = -M_PI_2 + fmodf(y + M_PI_2, M_PI);
@ -873,7 +873,7 @@ var(85, 'cos', """
""") """)
var(86, 'tan', """ var(86, 'tan', """
float tanden = 1.0f/(cosf(2.0*tx) + coshf(2.0f*ty)); float tanden = 1.0f/(cosf(2.0f*tx) + coshf(2.0f*ty));
ox += w * tanden * sinf(2.0f*tx); ox += w * tanden * sinf(2.0f*tx);
oy += w * tanden * sinhf(2.0f*ty); oy += w * tanden * sinhf(2.0f*ty);
""") """)