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LibPDF: For multi-output SampledFunctions, fix output colors

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For N outputs, the outputs aren't stored in N independent planes.
Instead, N output values are stored right next to each other in
the stream data.
This commit is contained in:
Nico Weber 2023-11-10 22:00:36 +01:00 • committed by Andreas Kling
parent ec739460e0
commit a9ef65e64a
2 changed files with 4 additions and 4 deletions
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2
Tests/LibPDF/TestPDF.cpp
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@ -131,7 +131,7 @@ TEST_CASE(sampled)
EXPECT_EQ(MUST(f1->evaluate(Vector<float> { 0.75f })), Vector<float> { 5.0f });
EXPECT_EQ(MUST(f1->evaluate(Vector<float> { 1.0f })), Vector<float> { 0.0f });
auto f2 = MUST(make_sampled_function(Vector<u8> { { 0, 255, 0, 255, 0, 255 } }, { 0.0f, 1.0f }, { 0.0f, 10.0f, 0.0f, 8.0f }, { 3 }));
auto f2 = MUST(make_sampled_function(Vector<u8> { { 0, 255, 255, 0, 0, 255 } }, { 0.0f, 1.0f }, { 0.0f, 10.0f, 0.0f, 8.0f }, { 3 }));
EXPECT_EQ(MUST(f2->evaluate(Vector<float> { 0.0f })), (Vector<float> { 0.0f, 8.0f }));
EXPECT_EQ(MUST(f2->evaluate(Vector<float> { 0.25f })), (Vector<float> { 5.0f, 4.0f }));
EXPECT_EQ(MUST(f2->evaluate(Vector<float> { 0.5f })), (Vector<float> { 10.0f, 0.0f }));