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https://github.com/hajimehoshi/ebiten.git
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1799ed0b28
This enables to create a C archive with Ebiten without an actual driver implementation. This enables Ebiten work on a platform Go doesn't support. See also Hitsumabushi project: github.com/hajimehoshi/hitsumabushi. The backend C API is not stable and might change later. Then, the build tag 'ebitencbackend' is not documented on purpose. Closes #1900
143 lines
3.0 KiB
Go
143 lines
3.0 KiB
Go
// Copyright 2021 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 ebitencbackend
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// +build ebitencbackend
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package cbackend
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import (
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"runtime"
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"time"
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"github.com/hajimehoshi/ebiten/v2/internal/cbackend"
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"github.com/hajimehoshi/ebiten/v2/internal/driver"
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"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/opengl"
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)
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const deviceScaleFactor = 1
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func init() {
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runtime.LockOSThread()
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}
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type UserInterface struct {
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input Input
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}
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var theUserInterface UserInterface
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func Get() *UserInterface {
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return &theUserInterface
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}
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func (u *UserInterface) Run(context driver.UIContext) error {
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cbackend.InitializeGame()
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for {
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w, h := cbackend.ScreenSize()
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context.Layout(float64(w), float64(h))
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cbackend.BeginFrame()
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u.input.update(context)
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if err := context.UpdateFrame(); err != nil {
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return err
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}
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cbackend.EndFrame()
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}
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}
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func (*UserInterface) RunWithoutMainLoop(context driver.UIContext) {
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panic("cbackend: RunWithoutMainLoop is not implemented")
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}
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func (*UserInterface) DeviceScaleFactor() float64 {
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return deviceScaleFactor
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}
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func (*UserInterface) IsFocused() bool {
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return true
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}
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func (*UserInterface) ScreenSizeInFullscreen() (int, int) {
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return 0, 0
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}
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func (*UserInterface) ResetForFrame() {
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}
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func (*UserInterface) CursorMode() driver.CursorMode {
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return driver.CursorModeHidden
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}
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func (*UserInterface) SetCursorMode(mode driver.CursorMode) {
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}
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func (*UserInterface) CursorShape() driver.CursorShape {
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return driver.CursorShapeDefault
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}
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func (*UserInterface) SetCursorShape(shape driver.CursorShape) {
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}
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func (*UserInterface) IsFullscreen() bool {
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return false
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}
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func (*UserInterface) SetFullscreen(fullscreen bool) {
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}
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func (*UserInterface) IsRunnableOnUnfocused() bool {
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return false
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}
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func (*UserInterface) SetRunnableOnUnfocused(runnableOnUnfocused bool) {
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}
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func (*UserInterface) FPSMode() driver.FPSMode {
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return driver.FPSModeVsyncOn
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}
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func (*UserInterface) SetFPSMode(mode driver.FPSMode) {
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}
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func (*UserInterface) ScheduleFrame() {
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}
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func (*UserInterface) IsScreenTransparent() bool {
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return false
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}
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func (*UserInterface) SetScreenTransparent(transparent bool) {
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}
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func (*UserInterface) SetInitFocused(focused bool) {
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}
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func (*UserInterface) Vibrate(duration time.Duration, intensity float64) {
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}
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func (*UserInterface) Input() driver.Input {
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return &theUserInterface.input
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}
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func (*UserInterface) Window() driver.Window {
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return nil
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}
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func (*UserInterface) Graphics() driver.Graphics {
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return opengl.Get()
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}
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