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cddb93b9f6
This is a preparation for #879. The value of the texel adjustment depends on the graphics driver (GLSL float precisions), and this can be accessed only after the run loop runs. The place where graphics commands are executed seems an appropriate place. Updates #879
106 lines
3.1 KiB
Go
106 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/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, graphics.CompositeModeClear, graphics.FilterNearest, graphics.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, graphics.CompositeModeClear, graphics.FilterNearest, graphics.AddressClampToZero)
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dst.DrawTriangles(src, vs, is, nil, graphics.CompositeModeSourceOver, graphics.FilterNearest, graphics.AddressClampToZero)
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dst.ReplacePixels(make([]byte, 4), 0, 0, 1, 1)
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}
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