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7484df0c5e
This is a prepartion to return an error when a graphics driver, especially DirectX, fails to initialize. Updates #2142
69 lines
1.9 KiB
Go
69 lines
1.9 KiB
Go
// Copyright 2022 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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//go:build ios
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// +build ios
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package ui
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import (
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"fmt"
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"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
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"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/metal"
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"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/opengl"
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)
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type graphicsDriverCreatorImpl struct {
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gomobileBuild bool
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}
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func (g *graphicsDriverCreatorImpl) newAuto() (graphicsdriver.Graphics, error) {
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m, err1 := g.newMetal()
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if err1 == nil {
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return m, nil
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}
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o, err2 := g.newOpenGL()
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if err2 == nil {
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return o, nil
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}
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return nil, fmt.Errorf("ui: failed to choose graphics drivers: Metal: %v, OpenGL: %v", err1, err2)
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}
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func (*graphicsDriverCreatorImpl) newOpenGL() (graphicsdriver.Graphics, error) {
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return opengl.NewGraphics()
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}
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func (*graphicsDriverCreatorImpl) getDirectX() graphicsdriver.Graphics {
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return nil
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}
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func (g *graphicsDriverCreatorImpl) newMetal() (graphicsdriver.Graphics, error) {
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if g.gomobileBuild {
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return nil, fmt.Errorf("ui: Metal is not available with gomobile-build")
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}
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return metal.NewGraphics()
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}
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func SetUIView(uiview uintptr) {
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// This function should be called only when the graphics library is Metal.
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if g, ok := theUI.graphicsDriver.(interface{ SetUIView(uintptr) }); ok {
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g.SetUIView(uiview)
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}
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}
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func IsGL() bool {
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return theUI.graphicsDriver.IsGL()
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}
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