mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-24 10:48:53 +01:00
106 lines
3.0 KiB
Go
106 lines
3.0 KiB
Go
// Copyright 2022 The Ebiten Authors
|
|
//
|
|
// 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 ui
|
|
|
|
import (
|
|
"github.com/hajimehoshi/ebiten/v2/internal/affine"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphics"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/mipmap"
|
|
)
|
|
|
|
// panicOnErrorOnReadingPixels indicates whether reading pixels panics on an error or not.
|
|
// This value is set only on testing.
|
|
var panicOnErrorOnReadingPixels bool
|
|
|
|
func SetPanicOnErrorOnReadingPixelsForTesting(value bool) {
|
|
panicOnErrorOnReadingPixels = value
|
|
}
|
|
|
|
type Image struct {
|
|
mipmap *mipmap.Mipmap
|
|
}
|
|
|
|
func NewImage(width, height int) *Image {
|
|
return &Image{
|
|
mipmap: mipmap.New(width, height),
|
|
}
|
|
}
|
|
|
|
func NewScreenFramebufferImage(width, height int) *Image {
|
|
return &Image{
|
|
mipmap: mipmap.NewScreenFramebufferMipmap(width, height),
|
|
}
|
|
}
|
|
|
|
func (i *Image) MarkDisposed() {
|
|
i.mipmap.MarkDisposed()
|
|
i.mipmap = nil
|
|
}
|
|
|
|
func (i *Image) DrawTriangles(srcs [graphics.ShaderImageNum]*Image, vertices []float32, indices []uint16, colorm affine.ColorM, mode graphicsdriver.CompositeMode, filter graphicsdriver.Filter, address graphicsdriver.Address, dstRegion, srcRegion graphicsdriver.Region, subimageOffsets [graphics.ShaderImageNum - 1][2]float32, shader *Shader, uniforms map[string]interface{}, evenOdd bool, canSkipMipmap bool) {
|
|
var srcMipmaps [graphics.ShaderImageNum]*mipmap.Mipmap
|
|
for i, src := range srcs {
|
|
if src == nil {
|
|
continue
|
|
}
|
|
srcMipmaps[i] = src.mipmap
|
|
}
|
|
|
|
var s *mipmap.Shader
|
|
if shader != nil {
|
|
s = shader.shader
|
|
}
|
|
|
|
i.mipmap.DrawTriangles(srcMipmaps, vertices, indices, colorm, mode, filter, address, dstRegion, srcRegion, subimageOffsets, s, uniforms, evenOdd, canSkipMipmap)
|
|
}
|
|
|
|
func (i *Image) ReplacePixels(pix []byte, x, y, width, height int) {
|
|
i.mipmap.ReplacePixels(pix, x, y, width, height)
|
|
}
|
|
|
|
func (i *Image) At(x, y int) (r, g, b, a byte) {
|
|
// Check the error existence and avoid unnecessary calls.
|
|
if theGlobalState.error() != nil {
|
|
return 0, 0, 0, 0
|
|
}
|
|
|
|
r, g, b, a, err := theUI.imageAt(i.mipmap, x, y)
|
|
if err != nil {
|
|
if panicOnErrorOnReadingPixels {
|
|
panic(err)
|
|
}
|
|
theGlobalState.setError(err)
|
|
return 0, 0, 0, 0
|
|
}
|
|
return r, g, b, a
|
|
}
|
|
|
|
func (i *Image) DumpScreenshot(name string, blackbg bool) error {
|
|
return theUI.dumpScreenshot(i.mipmap, name, blackbg)
|
|
}
|
|
|
|
func (i *Image) SetIndependent(independent bool) {
|
|
i.mipmap.SetIndependent(independent)
|
|
}
|
|
|
|
func (i *Image) SetVolatile(volatile bool) {
|
|
i.mipmap.SetVolatile(volatile)
|
|
}
|
|
|
|
func DumpImages(dir string) error {
|
|
return theUI.dumpImages(dir)
|
|
}
|