mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-20 21:32:20 +02:00
52 lines
1.5 KiB
Go
52 lines
1.5 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 opengl
|
|
|
|
// framebuffer is a wrapper of OpenGL's framebuffer.
|
|
type framebuffer struct {
|
|
driver *Driver
|
|
native framebufferNative
|
|
width int
|
|
height int
|
|
}
|
|
|
|
// newFramebufferFromTexture creates a framebuffer from the given texture.
|
|
func newFramebufferFromTexture(context *context, texture textureNative, width, height int) (*framebuffer, error) {
|
|
native, err := context.newFramebuffer(texture)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &framebuffer{
|
|
native: native,
|
|
width: width,
|
|
height: height,
|
|
}, nil
|
|
}
|
|
|
|
// newScreenFramebuffer creates a framebuffer for the screen.
|
|
func newScreenFramebuffer(context *context, width, height int) *framebuffer {
|
|
return &framebuffer{
|
|
native: context.getScreenFramebuffer(),
|
|
width: width,
|
|
height: height,
|
|
}
|
|
}
|
|
|
|
func (f *framebuffer) delete(context *context) {
|
|
if !f.native.equal(context.getScreenFramebuffer()) {
|
|
context.deleteFramebuffer(f.native)
|
|
}
|
|
}
|