2014-12-24 03:04:10 +01:00
|
|
|
// 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.
|
2014-12-09 15:16:04 +01:00
|
|
|
|
2014-12-14 07:26:10 +01:00
|
|
|
package ebiten
|
2013-12-09 14:40:54 +01:00
|
|
|
|
2016-05-19 16:37:58 +02:00
|
|
|
import (
|
2019-02-07 09:19:24 +01:00
|
|
|
"fmt"
|
2018-09-29 14:47:39 +02:00
|
|
|
"math"
|
2019-12-09 18:37:10 +01:00
|
|
|
"sync"
|
2018-09-29 14:47:39 +02:00
|
|
|
|
2019-09-19 05:02:35 +02:00
|
|
|
"github.com/hajimehoshi/ebiten/internal/buffered"
|
2018-01-06 15:30:11 +01:00
|
|
|
"github.com/hajimehoshi/ebiten/internal/clock"
|
2019-03-30 14:26:27 +01:00
|
|
|
"github.com/hajimehoshi/ebiten/internal/driver"
|
2019-03-30 14:13:48 +01:00
|
|
|
"github.com/hajimehoshi/ebiten/internal/graphicscommand"
|
2018-02-04 09:33:17 +01:00
|
|
|
"github.com/hajimehoshi/ebiten/internal/hooks"
|
2018-03-25 16:37:32 +02:00
|
|
|
"github.com/hajimehoshi/ebiten/internal/shareable"
|
2016-05-19 16:37:58 +02:00
|
|
|
)
|
|
|
|
|
2019-03-30 14:13:48 +01:00
|
|
|
func init() {
|
2019-09-02 18:42:53 +02:00
|
|
|
shareable.SetGraphicsDriver(graphicsDriver())
|
|
|
|
graphicscommand.SetGraphicsDriver(graphicsDriver())
|
2019-03-30 14:13:48 +01:00
|
|
|
}
|
|
|
|
|
2019-12-09 18:37:10 +01:00
|
|
|
func newUIContext(f func(*Image) error, width, height int, scaleForWindow float64) *uiContext {
|
2019-04-09 05:21:37 +02:00
|
|
|
return &uiContext{
|
2019-12-09 18:37:10 +01:00
|
|
|
f: f,
|
|
|
|
screenWidth: width,
|
|
|
|
screenHeight: height,
|
|
|
|
scaleForWindow: scaleForWindow,
|
2014-12-19 21:22:10 +01:00
|
|
|
}
|
2014-12-07 20:22:50 +01:00
|
|
|
}
|
|
|
|
|
2019-04-09 05:21:37 +02:00
|
|
|
type uiContext struct {
|
2019-12-09 18:37:10 +01:00
|
|
|
f func(*Image) error
|
|
|
|
offscreen *Image
|
|
|
|
screen *Image
|
|
|
|
screenWidth int
|
|
|
|
screenHeight int
|
|
|
|
screenScale float64
|
|
|
|
scaleForWindow float64
|
|
|
|
offsetX float64
|
|
|
|
offsetY float64
|
|
|
|
|
|
|
|
reqWidth int
|
|
|
|
reqHeight int
|
|
|
|
m sync.Mutex
|
2016-07-23 23:02:04 +02:00
|
|
|
}
|
|
|
|
|
2019-12-09 18:37:10 +01:00
|
|
|
var theUIContext *uiContext
|
2018-06-07 17:06:57 +02:00
|
|
|
|
2019-12-09 18:37:10 +01:00
|
|
|
func (c *uiContext) resolveSize() (int, int) {
|
|
|
|
c.m.Lock()
|
|
|
|
defer c.m.Unlock()
|
|
|
|
if c.reqWidth != 0 || c.reqHeight != 0 {
|
|
|
|
c.screenWidth = c.reqWidth
|
|
|
|
c.screenHeight = c.reqHeight
|
|
|
|
c.reqWidth = 0
|
|
|
|
c.reqHeight = 0
|
2016-05-18 03:46:23 +02:00
|
|
|
}
|
2016-06-17 21:46:33 +02:00
|
|
|
if c.offscreen != nil {
|
2019-12-09 18:37:10 +01:00
|
|
|
if w, h := c.offscreen.Size(); w != c.screenWidth || h != c.screenHeight {
|
|
|
|
// The offscreen might still be used somewhere. Do not Dispose it. Finalizer will do that.
|
|
|
|
c.offscreen = nil
|
|
|
|
}
|
2016-06-17 21:46:33 +02:00
|
|
|
}
|
2019-12-09 18:37:10 +01:00
|
|
|
if c.offscreen == nil {
|
|
|
|
c.offscreen = newImage(c.screenWidth, c.screenHeight, FilterDefault, true)
|
|
|
|
}
|
|
|
|
return c.screenWidth, c.screenHeight
|
|
|
|
}
|
|
|
|
|
|
|
|
func (c *uiContext) setScaleForWindow(scale float64) {
|
2019-12-15 11:53:33 +01:00
|
|
|
w, h := c.resolveSize()
|
|
|
|
c.m.Lock()
|
2019-12-09 18:37:10 +01:00
|
|
|
c.scaleForWindow = scale
|
2019-12-15 11:53:33 +01:00
|
|
|
uiDriver().SetWindowSize(int(float64(w)*scale), int(float64(h)*scale))
|
|
|
|
c.m.Unlock()
|
2019-12-09 18:37:10 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
func (c *uiContext) getScaleForWindow() float64 {
|
2019-12-15 11:53:33 +01:00
|
|
|
c.m.Lock()
|
|
|
|
s := c.scaleForWindow
|
|
|
|
c.m.Unlock()
|
|
|
|
return s
|
2019-12-09 18:37:10 +01:00
|
|
|
}
|
2019-09-21 07:53:52 +02:00
|
|
|
|
2019-12-09 18:37:10 +01:00
|
|
|
func (c *uiContext) SetScreenSize(width, height int) {
|
|
|
|
c.m.Lock()
|
|
|
|
defer c.m.Unlock()
|
2016-07-02 18:08:47 +02:00
|
|
|
|
2019-12-09 18:37:10 +01:00
|
|
|
c.reqWidth = width
|
|
|
|
c.reqHeight = height
|
2019-12-15 11:53:33 +01:00
|
|
|
s := c.scaleForWindow
|
|
|
|
uiDriver().SetWindowSize(int(float64(width)*s), int(float64(height)*s))
|
2019-12-09 18:37:10 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
func (c *uiContext) Layout(outsideWidth, outsideHeight float64) {
|
|
|
|
if c.screen != nil {
|
|
|
|
_ = c.screen.Dispose()
|
|
|
|
c.screen = nil
|
|
|
|
}
|
2016-07-02 18:08:47 +02:00
|
|
|
|
2019-12-09 18:37:10 +01:00
|
|
|
// TODO: This is duplicated with mobile/ebitenmobileview/funcs.go. Refactor this.
|
|
|
|
d := uiDriver().DeviceScaleFactor()
|
|
|
|
c.screen = newScreenFramebufferImage(int(outsideWidth*d), int(outsideHeight*d))
|
|
|
|
|
|
|
|
sw, sh := c.resolveSize()
|
|
|
|
scaleX := float64(outsideWidth) / float64(sw) * d
|
|
|
|
scaleY := float64(outsideHeight) / float64(sh) * d
|
|
|
|
c.screenScale = math.Min(scaleX, scaleY)
|
|
|
|
if uiDriver().CanHaveWindow() && !uiDriver().IsFullscreen() {
|
|
|
|
// When the UI driver cannot have a window, scaleForWindow is updated only via setScaleFowWindow.
|
|
|
|
c.scaleForWindow = c.screenScale / d
|
|
|
|
}
|
|
|
|
|
|
|
|
width := float64(sw) * c.screenScale
|
|
|
|
height := float64(sh) * c.screenScale
|
|
|
|
c.offsetX = (float64(outsideWidth)*d - width) / 2
|
|
|
|
c.offsetY = (float64(outsideHeight)*d - height) / 2
|
2016-05-18 03:46:23 +02:00
|
|
|
}
|
|
|
|
|
2019-04-09 05:21:37 +02:00
|
|
|
func (c *uiContext) Update(afterFrameUpdate func()) error {
|
2019-11-24 18:26:12 +01:00
|
|
|
updateCount := clock.Update(MaxTPS())
|
2018-01-06 15:30:11 +01:00
|
|
|
|
2018-07-17 20:05:09 +02:00
|
|
|
// TODO: If updateCount is 0 and vsync is disabled, swapping buffers can be skipped.
|
|
|
|
|
2019-09-19 05:02:35 +02:00
|
|
|
if err := buffered.BeginFrame(); err != nil {
|
2019-08-12 17:18:49 +02:00
|
|
|
return err
|
|
|
|
}
|
2019-08-24 17:14:37 +02:00
|
|
|
|
2016-07-03 09:18:29 +02:00
|
|
|
for i := 0; i < updateCount; i++ {
|
2019-12-09 18:37:10 +01:00
|
|
|
// Mipmap images should be disposed by Clear.
|
2019-01-21 18:07:20 +01:00
|
|
|
c.offscreen.Clear()
|
2018-03-01 17:55:32 +01:00
|
|
|
|
2018-07-09 17:36:43 +02:00
|
|
|
setDrawingSkipped(i < updateCount-1)
|
2019-12-09 18:37:10 +01:00
|
|
|
|
2018-03-14 18:50:10 +01:00
|
|
|
if err := hooks.RunBeforeUpdateHooks(); err != nil {
|
2018-02-04 09:33:17 +01:00
|
|
|
return err
|
|
|
|
}
|
2016-07-03 09:18:29 +02:00
|
|
|
if err := c.f(c.offscreen); err != nil {
|
|
|
|
return err
|
|
|
|
}
|
2019-09-02 18:42:53 +02:00
|
|
|
uiDriver().Input().ResetForFrame()
|
2017-11-09 17:18:41 +01:00
|
|
|
afterFrameUpdate()
|
2016-02-27 18:25:53 +01:00
|
|
|
}
|
2018-03-01 15:05:10 +01:00
|
|
|
|
2019-01-17 03:37:15 +01:00
|
|
|
// This clear is needed for fullscreen mode or some mobile platforms (#622).
|
2019-12-01 18:26:03 +01:00
|
|
|
c.screen.Clear()
|
2018-03-01 15:05:10 +01:00
|
|
|
|
2018-03-04 18:59:52 +01:00
|
|
|
op := &DrawImageOptions{}
|
2018-03-01 15:05:10 +01:00
|
|
|
|
2019-09-02 18:42:53 +02:00
|
|
|
switch vd := graphicsDriver().VDirection(); vd {
|
2019-03-30 14:26:27 +01:00
|
|
|
case driver.VDownward:
|
2018-11-12 16:00:10 +01:00
|
|
|
// c.screen is special: its Y axis is down to up,
|
|
|
|
// and the origin point is lower left.
|
|
|
|
op.GeoM.Scale(c.screenScale, -c.screenScale)
|
2019-12-09 18:37:10 +01:00
|
|
|
op.GeoM.Translate(0, float64(c.screenHeight)*c.screenScale)
|
2019-03-30 14:26:27 +01:00
|
|
|
case driver.VUpward:
|
2018-11-12 16:00:10 +01:00
|
|
|
op.GeoM.Scale(c.screenScale, c.screenScale)
|
|
|
|
default:
|
2019-02-07 09:19:24 +01:00
|
|
|
panic(fmt.Sprintf("ebiten: invalid v-direction: %d", vd))
|
2018-11-12 16:00:10 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
op.GeoM.Translate(c.offsetX, c.offsetY)
|
2018-03-01 15:05:10 +01:00
|
|
|
op.CompositeMode = CompositeModeCopy
|
2018-08-29 17:17:03 +02:00
|
|
|
|
|
|
|
// filterScreen works with >=1 scale, but does not well with <1 scale.
|
|
|
|
// Use regular FilterLinear instead so far (#669).
|
|
|
|
if c.screenScale >= 1 {
|
|
|
|
op.Filter = filterScreen
|
|
|
|
} else {
|
|
|
|
op.Filter = FilterLinear
|
|
|
|
}
|
2018-03-01 15:05:10 +01:00
|
|
|
_ = c.screen.DrawImage(c.offscreen, op)
|
2017-08-06 16:00:24 +02:00
|
|
|
|
2019-09-19 05:02:35 +02:00
|
|
|
if err := buffered.EndFrame(); err != nil {
|
2016-05-23 17:00:54 +02:00
|
|
|
return err
|
|
|
|
}
|
|
|
|
return nil
|
|
|
|
}
|
2019-12-09 18:37:10 +01:00
|
|
|
|
|
|
|
func (c *uiContext) AdjustPosition(x, y float64) (float64, float64) {
|
|
|
|
d := uiDriver().DeviceScaleFactor()
|
|
|
|
return (x*d - c.offsetX) / c.screenScale, (y*d - c.offsetY) / c.screenScale
|
|
|
|
}
|