skia2/tests/SkRasterPipelineTest.cpp
Mike Klein 26bea5d557 Make test lower-level, make const_cast more visible.
I can only think there's something funky going on with the hidden
const_cast inside SkRasterPipeline.cpp, or with the Sk4h -> Sk4f
conversion.  So make the const_cast visible and write the test
directly in halfs instead of floats.

CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Mac-Clang-MacMini6.2-CPU-AVX-x86_64-Release-GN-Trybot

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3003

Change-Id: I3a7e19ae165fce44f177b4968a63ec04e25c4b93
Reviewed-on: https://skia-review.googlesource.com/3003
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
2016-10-05 16:52:58 +00:00

46 lines
1.4 KiB
C++

/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#include "SkHalf.h"
#include "SkRasterPipeline.h"
DEF_TEST(SkRasterPipeline, r) {
// Build and run a simple pipeline to exercise SkRasterPipeline,
// drawing 50% transparent blue over opaque red in half-floats.
uint64_t red = 0x3c00000000003c00ull,
blue = 0x3800380000000000ull,
result;
SkRasterPipeline p;
p.append(SkRasterPipeline::load_s_f16, &blue);
p.append(SkRasterPipeline::load_d_f16, &red);
p.append(SkRasterPipeline::srcover);
p.append(SkRasterPipeline::store_f16, &result);
p.run(1);
// We should see half-intensity magenta.
REPORTER_ASSERT(r, ((result >> 0) & 0xffff) == 0x3800);
REPORTER_ASSERT(r, ((result >> 16) & 0xffff) == 0x0000);
REPORTER_ASSERT(r, ((result >> 32) & 0xffff) == 0x3800);
REPORTER_ASSERT(r, ((result >> 48) & 0xffff) == 0x3c00);
}
DEF_TEST(SkRasterPipeline_empty, r) {
// No asserts... just a test that this is safe to run.
SkRasterPipeline p;
p.run(20);
}
DEF_TEST(SkRasterPipeline_nonsense, r) {
// No asserts... just a test that this is safe to run and terminates.
// srcover() calls st->next(); this makes sure we've always got something there to call.
SkRasterPipeline p;
p.append(SkRasterPipeline::srcover);
p.run(20);
}