mirror of
https://github.com/hajimehoshi/ebiten.git
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f40798b586
Let's keep 'graphics' package as a package for utility functions or testable functions as much as possible.
107 lines
3.1 KiB
Go
107 lines
3.1 KiB
Go
// Copyright 2018 The Ebiten Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package graphicscommand_test
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import (
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"errors"
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"image/color"
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"os"
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"testing"
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"github.com/hajimehoshi/ebiten"
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"github.com/hajimehoshi/ebiten/internal/driver"
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"github.com/hajimehoshi/ebiten/internal/graphics"
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. "github.com/hajimehoshi/ebiten/internal/graphicscommand"
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"github.com/hajimehoshi/ebiten/internal/testflock"
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)
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func TestMain(m *testing.M) {
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testflock.Lock()
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defer testflock.Unlock()
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code := 0
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regularTermination := errors.New("regular termination")
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f := func(screen *ebiten.Image) error {
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code = m.Run()
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return regularTermination
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}
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if err := ebiten.Run(f, 320, 240, 1, "Test"); err != nil && err != regularTermination {
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panic(err)
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}
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os.Exit(code)
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}
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type testVertexPutter struct {
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w float32
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h float32
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}
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func (t *testVertexPutter) PutVertex(vs []float32, dx, dy, sx, sy float32, bx0, by0, bx1, by1 float32, cr, cg, cb, ca float32) {
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// The implementation is basically same as restorable.(*Image).PutVertex.
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vs[0] = dx
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vs[1] = dy
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vs[2] = sx / t.w
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vs[3] = sy / t.h
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vs[4] = bx0 / t.w
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vs[5] = by0 / t.h
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vs[6] = bx1 / t.w
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vs[7] = by1 / t.h
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vs[8] = cr
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vs[9] = cg
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vs[10] = cb
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vs[11] = ca
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}
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func TestClear(t *testing.T) {
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const w, h = 1024, 1024
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src := NewImage(w/2, h/2)
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dst := NewImage(w, h)
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vs := make([]float32, 4*graphics.VertexFloatNum)
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graphics.PutQuadVertices(vs, &testVertexPutter{w / 2, h / 2}, 0, 0, w/2, h/2, 1, 0, 0, 1, 0, 0, 1, 1, 1, 1)
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is := graphics.QuadIndices()
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dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeClear, driver.FilterNearest, driver.AddressClampToZero)
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pix := dst.Pixels()
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for j := 0; j < h/2; j++ {
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for i := 0; i < w/2; i++ {
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idx := 4 * (i + w*j)
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got := color.RGBA{pix[idx], pix[idx+1], pix[idx+2], pix[idx+3]}
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want := color.RGBA{}
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if got != want {
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t.Errorf("dst.At(%d, %d) after DrawTriangles: got %v, want: %v", i, j, got, want)
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}
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}
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}
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}
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func TestReplacePixelsPartAfterDrawTriangles(t *testing.T) {
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defer func() {
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if r := recover(); r == nil {
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t.Errorf("ReplacePixels must panic but not")
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}
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}()
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const w, h = 32, 32
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clr := NewImage(w, h)
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src := NewImage(16, 16)
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dst := NewImage(w, h)
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vs := make([]float32, 4*graphics.VertexFloatNum)
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graphics.PutQuadVertices(vs, &testVertexPutter{w / 2, h / 2}, 0, 0, w, h, 1, 0, 0, 1, 0, 0, 1, 1, 1, 1)
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is := graphics.QuadIndices()
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dst.DrawTriangles(clr, vs, is, nil, driver.CompositeModeClear, driver.FilterNearest, driver.AddressClampToZero)
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dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
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dst.ReplacePixels(make([]byte, 4), 0, 0, 1, 1)
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}
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