skia2/tests/F16StagesTest.cpp
Mike Klein de161cb256 increase alignment of half-float pixels in F16Stages test
I think the Chorizo is now enforcing that our aligned loads are really
aligned.  If this sticks, I'll follow up with the rest of the tests
disabled on the bug.

Bug: skia:7497

Change-Id: Id392e20ead395474f716a2c32d2643c801e03a2e
Reviewed-on: https://skia-review.googlesource.com/97202
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
2018-01-22 16:55:17 +00:00

55 lines
1.9 KiB
C++

/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkRasterPipeline.h"
#include "Test.h"
#include "../src/jumper/SkJumper.h"
DEF_TEST(F16Stages, r) {
// Make sure SkRasterPipeline::load_f16 and store_f16 can handle a range of
// ordinary (0<=x<=1) and interesting (x<0, x>1) values.
float floats[16] = {
0.0f, 0.25f, 0.5f, 1.0f,
-1.25f, -0.5f, 1.25f, 2.0f,
0,0,0,0, 0,0,0,0, // pad a bit to make sure we qualify for platform-specific code
};
uint64_t halfs[4] = {0,0,0,0};
SkJumper_MemoryCtx f32 = { floats, 0 },
f16 = { halfs, 0 };
{
SkRasterPipeline_<256> p;
p.append(SkRasterPipeline:: load_f32, &f32);
p.append(SkRasterPipeline::store_f16, &f16);
p.run(0,0,16/4,1);
}
REPORTER_ASSERT(r, ((halfs[0] >> 0) & 0xffff) == 0x0000);
REPORTER_ASSERT(r, ((halfs[0] >> 16) & 0xffff) == 0x3400);
REPORTER_ASSERT(r, ((halfs[0] >> 32) & 0xffff) == 0x3800);
REPORTER_ASSERT(r, ((halfs[0] >> 48) & 0xffff) == 0x3c00);
REPORTER_ASSERT(r, ((halfs[1] >> 0) & 0xffff) == 0xbd00);
REPORTER_ASSERT(r, ((halfs[1] >> 16) & 0xffff) == 0xb800);
REPORTER_ASSERT(r, ((halfs[1] >> 32) & 0xffff) == 0x3d00);
REPORTER_ASSERT(r, ((halfs[1] >> 48) & 0xffff) == 0x4000);
{
SkRasterPipeline_<256> p;
p.append(SkRasterPipeline:: load_f16, &f16);
p.append(SkRasterPipeline::store_f32, &f32);
p.run(0,0,16/4,1);
}
REPORTER_ASSERT(r, floats[0] == 0.00f);
REPORTER_ASSERT(r, floats[1] == 0.25f);
REPORTER_ASSERT(r, floats[2] == 0.50f);
REPORTER_ASSERT(r, floats[3] == 1.00f);
REPORTER_ASSERT(r, floats[4] == -1.25f);
REPORTER_ASSERT(r, floats[5] == -0.50f);
REPORTER_ASSERT(r, floats[6] == 1.25f);
REPORTER_ASSERT(r, floats[7] == 2.00f);
}