mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-20 05:12:18 +02:00
99e777b0c5
Adjusting pixels is needed to avoid strainge rendering to avoid unexpected rendering (#1171). However, this adjustment caused unexpected holes especially in a thick stroke. This change moves the logic of adjusting pixels from atlas to graphics.QuadVertices so that adjusting works only for DrawImage and DrawRectShader. Updates #1171 Updates #1843
82 lines
1.8 KiB
Go
82 lines
1.8 KiB
Go
// Copyright 2014 Hajime Hoshi
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package graphics_test
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphics"
|
|
)
|
|
|
|
func TestInternalImageSize(t *testing.T) {
|
|
testCases := []struct {
|
|
expected int
|
|
arg int
|
|
}{
|
|
{256, 255},
|
|
{256, 256},
|
|
{512, 257},
|
|
}
|
|
|
|
for _, testCase := range testCases {
|
|
got := graphics.InternalImageSize(testCase.arg)
|
|
wanted := testCase.expected
|
|
if wanted != got {
|
|
t.Errorf("Clp(%d) = %d, wanted %d", testCase.arg, got, wanted)
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
func TestAdjustPixel(t *testing.T) {
|
|
tests := []struct {
|
|
X float32
|
|
Y float32
|
|
Delta float32
|
|
}{
|
|
{
|
|
X: -0.1,
|
|
Y: 0.9,
|
|
Delta: 1,
|
|
},
|
|
{
|
|
X: -1,
|
|
Y: 0,
|
|
Delta: 1,
|
|
},
|
|
{
|
|
X: -1.9,
|
|
Y: 1.1,
|
|
Delta: 3,
|
|
},
|
|
{
|
|
X: -2,
|
|
Y: 1,
|
|
Delta: 3,
|
|
},
|
|
}
|
|
for _, tc := range tests {
|
|
if rx, ry := graphics.AdjustDestinationPixelForTesting(tc.X)+tc.Delta, graphics.AdjustDestinationPixelForTesting(tc.Y); rx != ry {
|
|
t.Errorf("adjustDestinationPixel(%f) + 1 must equal to adjustDestinationPixel(%f) but not (%f vs %f)", tc.X, tc.Y, rx, ry)
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkAdjustPixel(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
graphics.AdjustDestinationPixelForTesting(float32(i) / 17)
|
|
}
|
|
}
|