mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 04:57:26 +01:00
65 lines
1.6 KiB
Go
65 lines
1.6 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 ebiten
|
|
|
|
import (
|
|
"github.com/hajimehoshi/ebiten/internal/opengl"
|
|
)
|
|
|
|
// A Rect represents a rectangle.
|
|
type Rect struct {
|
|
X float64
|
|
Y float64
|
|
Width float64
|
|
Height float64
|
|
}
|
|
|
|
// An ImagePart represents a part of an image.
|
|
type ImagePart struct {
|
|
Dst Rect
|
|
Src Rect
|
|
}
|
|
|
|
// DrawWholeImage draws the whole image.
|
|
func DrawWholeImage(r *RenderTarget, image *Image, geo GeometryMatrix, color ColorMatrix) error {
|
|
w, h := image.Size()
|
|
parts := []ImagePart{
|
|
{Rect{0, 0, float64(w), float64(h)}, Rect{0, 0, float64(w), float64(h)}},
|
|
}
|
|
return r.DrawImage(image, parts, geo, color)
|
|
}
|
|
|
|
// Filter represents the type of filter to be used when an image is maginified or minified.
|
|
type Filter int
|
|
|
|
// Filters
|
|
const (
|
|
FilterNearest Filter = iota
|
|
FilterLinear
|
|
)
|
|
|
|
// An Image represents an image to be rendered.
|
|
// An image's pixels are stored as non alpha-premultiplied.
|
|
type Image struct {
|
|
glTexture *opengl.Texture
|
|
}
|
|
|
|
// Size returns the size of the image.
|
|
func (i *Image) Size() (width int, height int) {
|
|
return i.glTexture.Size()
|
|
}
|