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pool.go
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pool.go
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// Copyright 2015 Matthew Collins
//
// 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 render
var (
freeTextures []*reusableTexture
)
type reusableTexture struct {
info *textureInfo
W, H int
}
func getFreeTexture(w, h int) *reusableTexture {
for i, f := range freeTextures {
if f.H == h && f.W == w {
freeTextures = append(freeTextures[:i], freeTextures[i+1:]...)
return f
}
}
return &reusableTexture{
info: addTexture(make([]byte, w*h*4), w, h),
W: w, H: h,
}
}
func freeTexture(t *reusableTexture) {
freeTextures = append(freeTextures, t)
}