31564b98c9
f32: add tests for Affine2D transformations
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References: https://todo.sr.ht/~eliasnaur/gio/655
Signed-off-by: Walter Werner SCHNEIDER <contact@schnwalter.eu >
2025-07-12 09:43:08 +02:00
d76b4272aa
f32: replace Affine2D{} with AffineId() for identity transformations
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Reduces ambiguity by introducing AffineId() for representing identity transformation matrices.
References: https://todo.sr.ht/~eliasnaur/gio/655
Signed-off-by: Walter Werner SCHNEIDER <contact@schnwalter.eu >
2025-07-09 13:35:03 +02:00
f73287be87
all: clean up code, upgrade to modern Go
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Signed-off-by: ddkwork
2025-05-05 19:46:39 +02:00
dead6e007f
f32: nicer Affine2D string formatting
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Signed-off-by: Egon Elbre <egonelbre@gmail.com >
2022-10-11 13:27:57 -06:00
24d6f3fb65
f32: optimize Affine2D
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encode/decode seem to introduce significant overhead. Inline them
manually. It'll make code harder to read, however the performance wins
are significant.
name \ time/op before after delta
TransformOffset-32 2.64ns ± 0% 0.25ns ± 0% ~ (p=0.100 n=3+3)
TransformScale-32 2.64ns ± 0% 0.25ns ± 1% ~ (p=0.100 n=3+3)
TransformRotate-32 2.65ns ± 0% 0.24ns ± 3% ~ (p=0.100 n=3+3)
TransformTranslateMultiply-32 42.5ns ± 0% 12.9ns ± 0% ~ (p=0.100 n=3+3)
TransformScaleMultiply-32 42.6ns ± 0% 12.9ns ± 0% ~ (p=0.100 n=3+3)
TransformMultiply-32 42.2ns ± 0% 12.9ns ± 2% ~ (p=0.100 n=3+3)
Signed-off-by: Egon Elbre <egonelbre@gmail.com >
2020-10-13 15:14:33 +02:00
e7bc1a4553
f32: implement 2D affine transformations
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Implements 2D affine transformations. This commit is a step
towards full affine transformations for drawing operations.
Heavily based on the work by Péter Szilágyi in patch 9212
Signed-off-by: Viktor <viktor.ogeman@gmail.com >
2020-06-21 11:17:37 +02:00
Walter Werner SCHNEIDER