add table pregeneration script for pmetric

add table pregeneration script for pmetric

R=djsollen@google.com

Committed: https://code.google.com/p/skia/source/detail?r=10106

[Zach Reizner, 2013-07-15 18:00:34]

This commit also has the row pointers one for now because the tree is closed.
I'll rebase this CL once it opens, but it should be ready to review now anyways.

[Zach Reizner, 2013-07-16 13:54:41]

Did the rebase and tons of other small tweaks.

[djsollen, 2013-07-16 13:55:11]

https://codereview.chromium.org/19256002/diff/5002/experimental/skpdiff/SkPMe...
File experimental/skpdiff/SkPMetric.cpp (right):

https://codereview.chromium.org/19256002/diff/5002/experimental/skpdiff/SkPMe...
experimental/skpdiff/SkPMetric.cpp:283: float * contrastSensitivityTable =
SkNEW_ARRAY(float, maxLevels * 1000);
float*

https://codereview.chromium.org/19256002/diff/5002/experimental/skpdiff/SkPMe...
experimental/skpdiff/SkPMetric.cpp:363: contrastSensitivityTable[levelIndex *
1000 + (int)(lAdapt * 10.0)]);
100 char limit

https://codereview.chromium.org/19256002/diff/5002/experimental/skpdiff/gener...
File experimental/skpdiff/generate_pmetric_tables.py (right):

https://codereview.chromium.org/19256002/diff/5002/experimental/skpdiff/gener...
experimental/skpdiff/generate_pmetric_tables.py:59: print('static float
gCubeRootTable[] = { ', end='', file=stream)
put newline after {

https://codereview.chromium.org/19256002/diff/5002/experimental/skpdiff/gener...
experimental/skpdiff/generate_pmetric_tables.py:61: print("%.10f" % pow(i /
1024.0, 1.0 / 3.0), end='f, ', file=stream)
if i % 6 newline?

[djsollen, 2013-07-16 15:31:04]

lgtm if you add the info to the top of the generated file

https://codereview.chromium.org/19256002/diff/17001/experimental/skpdiff/SkPM...
File experimental/skpdiff/SkPMetricUtil_generated.h (right):

https://codereview.chromium.org/19256002/diff/17001/experimental/skpdiff/SkPM...
experimental/skpdiff/SkPMetricUtil_generated.h:1: namespace SkPMetricUtil {
put the standard google header at the top of the file as well as a comment
saying how to regenerate the file.

[Zach Reizner, 2013-07-16 15:47:11]

Committed patchset #9 manually as r10106 (presubmit successful).