mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-12 22:17:26 +01:00
139 lines
2.8 KiB
Go
139 lines
2.8 KiB
Go
/*
|
|
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.
|
|
*/
|
|
|
|
package blocks
|
|
|
|
import (
|
|
"github.com/hajimehoshi/ebiten"
|
|
"image"
|
|
_ "image/png"
|
|
"os"
|
|
"sync"
|
|
)
|
|
|
|
type namePath struct {
|
|
name string
|
|
path string
|
|
}
|
|
|
|
type nameSize struct {
|
|
name string
|
|
size Size
|
|
}
|
|
|
|
type Textures struct {
|
|
gameContext ebiten.GameContext
|
|
texturePaths chan namePath
|
|
renderTargetSizes chan nameSize
|
|
textures map[string]ebiten.TextureID
|
|
renderTargets map[string]ebiten.RenderTargetID
|
|
sync.RWMutex
|
|
}
|
|
|
|
func NewTextures(g ebiten.GameContext) *Textures {
|
|
textures := &Textures{
|
|
gameContext: g,
|
|
texturePaths: make(chan namePath),
|
|
renderTargetSizes: make(chan nameSize),
|
|
textures: map[string]ebiten.TextureID{},
|
|
renderTargets: map[string]ebiten.RenderTargetID{},
|
|
}
|
|
go func() {
|
|
for {
|
|
textures.loopMain()
|
|
}
|
|
}()
|
|
return textures
|
|
}
|
|
|
|
func loadImage(path string) (image.Image, error) {
|
|
file, err := os.Open(path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer file.Close()
|
|
|
|
img, _, err := image.Decode(file)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return img, nil
|
|
}
|
|
|
|
func (t *Textures) loopMain() {
|
|
select {
|
|
case p := <-t.texturePaths:
|
|
name := p.name
|
|
path := p.path
|
|
go func() {
|
|
img, err := loadImage(path)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
id, err := t.gameContext.NewTextureID(img, ebiten.FilterNearest)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
t.Lock()
|
|
defer t.Unlock()
|
|
t.textures[name] = id
|
|
}()
|
|
case s := <-t.renderTargetSizes:
|
|
name := s.name
|
|
size := s.size
|
|
go func() {
|
|
id, err := t.gameContext.NewRenderTargetID(size.Width, size.Height, ebiten.FilterNearest)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
t.Lock()
|
|
defer t.Unlock()
|
|
t.renderTargets[name] = id
|
|
}()
|
|
}
|
|
}
|
|
|
|
func (t *Textures) RequestTexture(name string, path string) {
|
|
t.texturePaths <- namePath{name, path}
|
|
}
|
|
|
|
func (t *Textures) RequestRenderTarget(name string, size Size) {
|
|
t.renderTargetSizes <- nameSize{name, size}
|
|
}
|
|
|
|
func (t *Textures) Has(name string) bool {
|
|
t.RLock()
|
|
defer t.RUnlock()
|
|
_, ok := t.textures[name]
|
|
if ok {
|
|
return true
|
|
}
|
|
_, ok = t.renderTargets[name]
|
|
return ok
|
|
}
|
|
|
|
func (t *Textures) GetTexture(name string) ebiten.TextureID {
|
|
t.RLock()
|
|
defer t.RUnlock()
|
|
return t.textures[name]
|
|
}
|
|
|
|
func (t *Textures) GetRenderTarget(name string) ebiten.RenderTargetID {
|
|
t.RLock()
|
|
defer t.RUnlock()
|
|
return t.renderTargets[name]
|
|
}
|