mirror of
https://github.com/hajimehoshi/ebiten.git
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45 lines
1.4 KiB
Go
45 lines
1.4 KiB
Go
// Copyright 2014 Hajime Hoshi
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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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package opengl
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// Since js.Object (Program) can't be keys of a map, use integers (programID) instead.
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type locationCache struct {
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uniformLocationCache map[programID]map[string]uniformLocation
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}
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func newLocationCache() *locationCache {
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return &locationCache{
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uniformLocationCache: map[programID]map[string]uniformLocation{},
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}
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}
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func (c *locationCache) GetUniformLocation(context *context, p program, location string) uniformLocation {
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id := getProgramID(p)
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if _, ok := c.uniformLocationCache[id]; !ok {
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c.uniformLocationCache[id] = map[string]uniformLocation{}
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}
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l, ok := c.uniformLocationCache[id][location]
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if !ok {
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l = context.getUniformLocationImpl(p, location)
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c.uniformLocationCache[id][location] = l
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}
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return l
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}
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func (c *locationCache) deleteProgram(p program) {
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delete(c.uniformLocationCache, getProgramID(p))
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}
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