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Add routines to standard library to do efficient AOS/SOA conversions.

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Currently, we just support 3 and 4-wide variants (i.e. xyzxyz.. and xyzwxyzw..),
for int32 and float types.
This commit is contained in:
Matt Pharr
2011-10-10 10:56:06 -07:00
parent f5391747b9
commit 3cb0115dce
11 changed files with 1041 additions and 2 deletions
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27
tests/aossoa-1.ispc Normal file
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export uniform int width() { return programCount; }
export void f_v(uniform float RET[]) {
#define width 3
#define maxProgramCount 16
//CO const uniform int width = 3;
//CO const uniform int maxProgramCount = 16;
uniform float a[width*maxProgramCount], r[width*maxProgramCount];
for (uniform int i = 0; i < width*maxProgramCount; ++i)
a[i] = i;
float x=-1, y=-1, z=-1;
aos_to_soa3(a, 0, x, y, z);
int errs = 0;
if (x != width * programIndex) ++errs;
if (y != 1 + width * programIndex) ++errs;
if (z != 2 + width * programIndex) ++errs;
RET[programIndex] = errs;
}
export void result(uniform float RET[]) {
RET[programIndex] = 0;
}

28
tests/aossoa-2.ispc Normal file
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export uniform int width() { return programCount; }
export void f_v(uniform float RET[]) {
#define width 4
#define maxProgramCount 16
//CO const uniform int width = 4;
//CO const uniform int maxProgramCount = 16;
uniform float a[width*maxProgramCount], r[width*maxProgramCount];
for (uniform int i = 0; i < width*maxProgramCount; ++i)
a[i] = i;
float x=-1, y=-1, z=-1, w=-1;
aos_to_soa4(a, 0, x, y, z, w);
int errs = 0;
if (x != width * programIndex) ++errs;
if (y != 1 + width * programIndex) ++errs;
if (z != 2 + width * programIndex) ++errs;
if (w != 3 + width * programIndex) ++errs;
RET[programIndex] = errs;
}
export void result(uniform float RET[]) {
RET[programIndex] = 0;
}

27
tests/aossoa-3.ispc Normal file
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export uniform int width() { return programCount; }
export void f_v(uniform float RET[]) {
#define width 4
//CO const uniform int width = 4;
uniform float a[width*programCount], r[width*programCount];
for (uniform int i = 0; i < width*programCount; ++i)
a[i] = -1;
float x = width * programIndex;
float y = 1 + width * programIndex;
float z = 2 + width * programIndex;
float w = 3 + width * programIndex;
soa_to_aos4(x, y, z, w, a, 0);
uniform int errs = 0;
for (uniform int i = 0; i < width * programCount; ++i)
if (a[i] != i) ++errs;
RET[programIndex] = errs;
}
export void result(uniform float RET[]) {
RET[programIndex] = 0;
}

26
tests/aossoa-4.ispc Normal file
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export uniform int width() { return programCount; }
export void f_v(uniform float RET[]) {
#define width 3
//CO const uniform int width = 4;
uniform float a[width*programCount], r[width*programCount];
for (uniform int i = 0; i < width*programCount; ++i)
a[i] = -1;
float x = width * programIndex;
float y = 1 + width * programIndex;
float z = 2 + width * programIndex;
soa_to_aos3(x, y, z, a, 0);
uniform int errs = 0;
for (uniform int i = 0; i < width * programCount; ++i)
if (a[i] != i) ++errs;
RET[programIndex] = errs;
}
export void result(uniform float RET[]) {
RET[programIndex] = 0;
}

27
tests/aossoa-5.ispc Normal file
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@@ -0,0 +1,27 @@
export uniform int width() { return programCount; }
export void f_v(uniform float RET[]) {
#define width 3
#define maxProgramCount 16
//CO const uniform int width = 3;
//CO const uniform int maxProgramCount = 16;
uniform int a[width*maxProgramCount], r[width*maxProgramCount];
for (uniform int i = 0; i < width*maxProgramCount; ++i)
a[i] = i;
int x=-1, y=-1, z=-1;
aos_to_soa3(a, 0, x, y, z);
int errs = 0;
if (x != width * programIndex) ++errs;
if (y != 1 + width * programIndex) ++errs;
if (z != 2 + width * programIndex) ++errs;
RET[programIndex] = errs;
}
export void result(uniform float RET[]) {
RET[programIndex] = 0;
}

28
tests/aossoa-6.ispc Normal file
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@@ -0,0 +1,28 @@
export uniform int width() { return programCount; }
export void f_v(uniform float RET[]) {
#define width 4
#define maxProgramCount 16
//CO const uniform int width = 4;
//CO const uniform int maxProgramCount = 16;
uniform int a[width*maxProgramCount], r[width*maxProgramCount];
for (uniform int i = 0; i < width*maxProgramCount; ++i)
a[i] = i;
int x=-1, y=-1, z=-1, w=-1;
aos_to_soa4(a, 0, x, y, z, w);
int errs = 0;
if (x != width * programIndex) ++errs;
if (y != 1 + width * programIndex) ++errs;
if (z != 2 + width * programIndex) ++errs;
if (w != 3 + width * programIndex) ++errs;
RET[programIndex] = errs;
}
export void result(uniform float RET[]) {
RET[programIndex] = 0;
}