fbc6d7fcf6
This lets us remove the old S32 functions, and fix a couple bugs. I think this is a good first step to using SkColor4f for paint colors. Bug: skia: Change-Id: I0337c2b6db29b73c2f682f85b9cf68c985de7cce Reviewed-on: https://skia-review.googlesource.com/147205 Commit-Queue: Brian Osman <brianosman@google.com> Reviewed-by: Mike Klein <mtklein@google.com>
62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkPM4f.h"
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#include "SkRasterPipeline.h"
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#include "SkTypes.h"
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#include "Test.h"
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#include <math.h>
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#include "../src/jumper/SkJumper.h"
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DEF_TEST(sk_pipeline_srgb_roundtrip, r) {
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uint32_t reds[256];
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for (int i = 0; i < 256; i++) {
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reds[i] = i;
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}
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SkJumper_MemoryCtx ptr = { reds, 0 };
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SkRasterPipeline_<256> p;
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p.append(SkRasterPipeline::load_8888, &ptr);
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p.append(SkRasterPipeline::from_srgb);
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p.append(SkRasterPipeline::to_srgb);
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p.append(SkRasterPipeline::store_8888, &ptr);
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p.run(0,0,256,1);
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for (int i = 0; i < 256; i++) {
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if (reds[i] != (uint32_t)i) {
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ERRORF(r, "%d doesn't round trip, %d", i, reds[i]);
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}
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}
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}
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DEF_TEST(sk_pipeline_srgb_edge_cases, r) {
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// We need to run at least 4 pixels to make sure we hit all specializations.
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SkPM4f colors[4] = { {{0,1,1,1}}, {{0,0,0,0}}, {{0,0,0,0}}, {{0,0,0,0}} };
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auto& color = colors[0];
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SkJumper_MemoryCtx dst = { &color, 0 };
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SkSTArenaAlloc<256> alloc;
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SkRasterPipeline p(&alloc);
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p.append_constant_color(&alloc, color);
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p.append(SkRasterPipeline::to_srgb);
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p.append(SkRasterPipeline::store_f32, &dst);
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p.run(0,0,4,1);
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if (color.r() != 0.0f) {
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ERRORF(r, "expected to_srgb() to map 0.0f to 0.0f, got %f", color.r());
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}
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if (color.g() != 1.0f) {
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float f = color.g();
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uint32_t x;
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memcpy(&x, &f, 4);
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ERRORF(r, "expected to_srgb() to map 1.0f to 1.0f, got %f (%08x)", color.g(), x);
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}
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}
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