2014-12-24 03:04:10 +01:00
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// 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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2014-12-09 15:16:04 +01:00
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2014-12-14 07:26:10 +01:00
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package ebiten
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2013-10-27 14:58:56 +01:00
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import (
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2015-01-06 15:50:02 +01:00
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"errors"
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2015-01-20 15:58:58 +01:00
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"fmt"
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2014-12-22 17:26:44 +01:00
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"image"
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2014-12-19 22:18:28 +01:00
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"image/color"
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2016-05-12 04:06:12 +02:00
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"image/draw"
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2016-05-07 21:39:37 +02:00
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"runtime"
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2016-04-06 04:11:31 +02:00
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"sync"
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2016-02-06 18:24:35 +01:00
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"github.com/hajimehoshi/ebiten/internal/graphics"
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2016-05-07 21:39:37 +02:00
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"github.com/hajimehoshi/ebiten/internal/graphics/opengl"
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2016-05-18 03:59:37 +02:00
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"github.com/hajimehoshi/ebiten/internal/loop"
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2016-05-18 04:07:00 +02:00
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"github.com/hajimehoshi/ebiten/internal/ui"
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2013-10-27 14:58:56 +01:00
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)
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2016-05-07 21:39:37 +02:00
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var (
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2016-05-12 04:06:12 +02:00
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imageM sync.Mutex
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2016-05-07 21:39:37 +02:00
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)
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2016-05-12 04:06:12 +02:00
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type delayedImageTasks struct {
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tasks []func() error
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m sync.Mutex
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execCalled bool
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}
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var theDelayedImageTasks = &delayedImageTasks{
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tasks: []func() error{},
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}
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func (t *delayedImageTasks) add(f func() error) bool {
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t.m.Lock()
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defer t.m.Unlock()
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if t.execCalled {
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return false
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}
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t.tasks = append(t.tasks, f)
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return true
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}
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func (t *delayedImageTasks) exec() error {
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t.m.Lock()
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defer t.m.Unlock()
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t.execCalled = true
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for _, f := range t.tasks {
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2016-05-07 21:39:37 +02:00
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if err := f(); err != nil {
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return err
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}
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}
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return nil
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}
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2016-05-16 17:22:32 +02:00
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type images struct {
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2016-06-10 18:13:38 +02:00
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images map[*imageImpl]struct{}
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m sync.Mutex
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2016-05-16 17:22:32 +02:00
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}
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var theImages = images{
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2016-05-16 18:03:28 +02:00
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images: map[*imageImpl]struct{}{},
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2016-05-16 17:22:32 +02:00
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}
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2016-05-16 18:03:28 +02:00
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func (i *images) add(img *imageImpl) (*Image, error) {
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2016-05-16 17:22:32 +02:00
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i.m.Lock()
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defer i.m.Unlock()
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i.images[img] = struct{}{}
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2016-05-16 18:03:28 +02:00
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eimg := &Image{img}
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2016-05-16 18:06:30 +02:00
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runtime.SetFinalizer(eimg, theImages.remove)
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2016-05-16 18:03:28 +02:00
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return eimg, nil
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2016-05-16 17:22:32 +02:00
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}
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2016-05-16 18:03:28 +02:00
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func (i *images) remove(img *Image) {
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2016-05-16 17:22:32 +02:00
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i.m.Lock()
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defer i.m.Unlock()
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2016-05-16 18:03:28 +02:00
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delete(i.images, img.impl)
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2016-05-16 17:22:32 +02:00
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}
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2016-06-10 18:20:55 +02:00
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func (i *images) restorePixels(context *opengl.Context) error {
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2016-05-16 17:22:32 +02:00
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i.m.Lock()
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defer i.m.Unlock()
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for img := range i.images {
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2016-06-10 18:20:55 +02:00
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if err := img.restorePixels(context); err != nil {
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2016-05-16 17:22:32 +02:00
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return err
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}
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}
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return nil
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}
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2014-12-22 03:20:14 +01:00
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// Image represents an image.
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2014-12-22 13:39:25 +01:00
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// The pixel format is alpha-premultiplied.
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2014-12-22 20:10:28 +01:00
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// Image implements image.Image.
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2014-12-22 02:36:42 +01:00
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type Image struct {
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2016-05-16 18:03:28 +02:00
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impl *imageImpl
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}
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// Size returns the size of the image.
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//
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// This function is concurrent-safe.
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func (i *Image) Size() (width, height int) {
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2016-05-16 18:06:30 +02:00
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return i.impl.width, i.impl.height
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2016-05-16 18:03:28 +02:00
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}
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// Clear resets the pixels of the image into 0.
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//
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// This function is concurrent-safe.
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func (i *Image) Clear() error {
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2016-05-16 18:06:30 +02:00
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return i.impl.Fill(color.Transparent)
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2016-05-16 18:03:28 +02:00
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}
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// Fill fills the image with a solid color.
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//
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// This function is concurrent-safe.
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func (i *Image) Fill(clr color.Color) error {
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return i.impl.Fill(clr)
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}
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// DrawImage draws the given image on the receiver image.
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//
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// This method accepts the options.
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// The parts of the given image at the parts of the destination.
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// After determining parts to draw, this applies the geometry matrix and the color matrix.
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//
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// Here are the default values:
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// ImageParts: (0, 0) - (source width, source height) to (0, 0) - (source width, source height)
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// (i.e. the whole source image)
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// GeoM: Identity matrix
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// ColorM: Identity matrix (that changes no colors)
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// CompositeMode: CompositeModeSourceOver (regular alpha blending)
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//
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2016-06-07 16:50:01 +02:00
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// Note that this function returns immediately and actual drawing is done lazily.
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2016-05-16 18:03:28 +02:00
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//
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// This function is concurrent-safe.
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func (i *Image) DrawImage(image *Image, options *DrawImageOptions) error {
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return i.impl.DrawImage(image, options)
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}
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// Bounds returns the bounds of the image.
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//
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// This function is concurrent-safe.
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func (i *Image) Bounds() image.Rectangle {
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2016-05-16 18:06:30 +02:00
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return image.Rect(0, 0, i.impl.width, i.impl.height)
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2016-05-16 18:03:28 +02:00
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}
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// ColorModel returns the color model of the image.
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//
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// This function is concurrent-safe.
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func (i *Image) ColorModel() color.Model {
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2016-05-16 18:06:30 +02:00
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return color.RGBAModel
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2016-05-16 18:03:28 +02:00
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}
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// At returns the color of the image at (x, y).
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//
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// This method loads pixels from VRAM to system memory if necessary.
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//
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// This method can't be called before the main loop (ebiten.Run) starts (as of version 1.4.0-alpha).
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//
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// This function is concurrent-safe.
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func (i *Image) At(x, y int) color.Color {
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return i.impl.At(x, y)
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}
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// Dispose disposes the image data. After disposing, the image becomes invalid.
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// This is useful to save memory.
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//
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// The behavior of any functions for a disposed image is undefined.
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//
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// This function is concurrent-safe.
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func (i *Image) Dispose() error {
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return i.impl.Dispose()
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}
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// ReplacePixels replaces the pixels of the image with p.
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//
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// The given p must represent RGBA pre-multiplied alpha values. len(p) must equal to 4 * (image width) * (image height).
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//
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// This function may be slow (as for implementation, this calls glTexSubImage2D).
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//
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// This function is concurrent-safe.
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func (i *Image) ReplacePixels(p []uint8) error {
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return i.impl.ReplacePixels(p)
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}
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type imageImpl struct {
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2016-05-16 17:22:32 +02:00
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framebuffer *graphics.Framebuffer
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texture *graphics.Texture
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defaultFramebuffer bool
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disposed bool
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width int
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height int
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filter Filter
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2016-06-10 22:48:09 +02:00
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pixels []uint8
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2014-12-20 12:54:14 +01:00
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}
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2016-05-16 18:06:30 +02:00
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func (i *imageImpl) Fill(clr color.Color) error {
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2016-05-07 21:39:37 +02:00
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f := func() error {
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2016-05-12 04:06:12 +02:00
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imageM.Lock()
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defer imageM.Unlock()
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2016-05-07 21:39:37 +02:00
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if i.isDisposed() {
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return errors.New("ebiten: image is already disposed")
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}
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i.pixels = nil
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2016-06-10 22:48:09 +02:00
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return i.framebuffer.Fill(clr)
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2016-02-06 18:24:35 +01:00
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}
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2016-05-12 04:06:12 +02:00
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if theDelayedImageTasks.add(f) {
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return nil
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2016-05-07 20:21:39 +02:00
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}
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2016-05-07 21:39:37 +02:00
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return f()
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2014-12-20 12:54:14 +01:00
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}
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2016-06-05 16:32:25 +02:00
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func isWholeNumber(x float64) bool {
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return x == float64(int64(x))
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}
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2016-05-16 18:03:28 +02:00
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func (i *imageImpl) DrawImage(image *Image, options *DrawImageOptions) error {
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2016-04-07 20:18:52 +02:00
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// Calculate vertices before locking because the user can do anything in
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// options.ImageParts interface without deadlock (e.g. Call Image functions).
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2015-01-12 11:54:25 +01:00
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if options == nil {
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options = &DrawImageOptions{}
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}
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parts := options.ImageParts
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if parts == nil {
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// Check options.Parts for backward-compatibility.
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dparts := options.Parts
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if dparts != nil {
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parts = imageParts(dparts)
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} else {
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2016-05-16 18:03:28 +02:00
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parts = &wholeImage{image.impl.width, image.impl.height}
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2015-01-12 11:54:25 +01:00
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}
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}
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2016-05-16 18:03:28 +02:00
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quads := &textureQuads{parts: parts, width: image.impl.width, height: image.impl.height}
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2016-04-07 20:18:52 +02:00
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// TODO: Reuse one vertices instead of making here, but this would need locking.
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2016-04-07 21:08:45 +02:00
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vertices := make([]int16, parts.Len()*16)
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2016-04-07 20:18:52 +02:00
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n := quads.vertices(vertices)
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if n == 0 {
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return nil
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}
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2016-05-16 18:03:28 +02:00
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if i == image.impl {
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2016-04-07 20:18:52 +02:00
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return errors.New("ebiten: Image.DrawImage: image should be different from the receiver")
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}
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2016-05-07 21:39:37 +02:00
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f := func() error {
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2016-05-12 04:06:12 +02:00
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imageM.Lock()
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defer imageM.Unlock()
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2016-05-07 21:39:37 +02:00
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if i.isDisposed() {
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return errors.New("ebiten: image is already disposed")
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}
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i.pixels = nil
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2016-06-05 17:23:18 +02:00
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geom := &options.GeoM
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colorm := &options.ColorM
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2016-06-04 17:32:57 +02:00
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mode := opengl.CompositeMode(options.CompositeMode)
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2016-06-11 14:50:13 +02:00
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if err := i.framebuffer.DrawTexture(image.impl.texture, vertices[:16*n], geom, colorm, mode); err != nil {
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2016-06-04 20:17:24 +02:00
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return err
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}
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return nil
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2016-05-07 20:21:39 +02:00
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}
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2016-05-12 04:06:12 +02:00
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if theDelayedImageTasks.add(f) {
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2016-05-07 20:21:39 +02:00
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return nil
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}
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2016-05-07 21:39:37 +02:00
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return f()
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2015-01-12 12:47:49 +01:00
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}
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2016-05-16 18:03:28 +02:00
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func (i *imageImpl) At(x, y int) color.Color {
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2016-05-18 03:59:37 +02:00
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if !loop.IsRunning() {
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2016-05-07 21:43:43 +02:00
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panic("ebiten: At can't be called when the GL context is not initialized (this panic happens as of version 1.4.0-alpha)")
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2016-05-07 20:21:39 +02:00
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}
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2016-05-12 04:36:09 +02:00
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imageM.Lock()
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defer imageM.Unlock()
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2016-02-06 18:24:35 +01:00
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if i.isDisposed() {
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return color.Transparent
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}
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2014-12-22 17:26:44 +01:00
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if i.pixels == nil {
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2016-02-19 20:39:43 +01:00
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var err error
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2016-05-18 04:07:00 +02:00
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i.pixels, err = i.framebuffer.Pixels(ui.GLContext())
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2016-02-19 20:39:43 +01:00
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if err != nil {
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panic(err)
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}
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2014-12-22 17:26:44 +01:00
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}
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2016-05-16 05:23:26 +02:00
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idx := 4*x + 4*y*i.width
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2014-12-22 17:26:44 +01:00
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r, g, b, a := i.pixels[idx], i.pixels[idx+1], i.pixels[idx+2], i.pixels[idx+3]
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return color.RGBA{r, g, b, a}
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}
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2014-12-24 14:46:00 +01:00
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2016-06-10 18:20:55 +02:00
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func (i *imageImpl) restorePixels(context *opengl.Context) error {
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2016-05-16 17:22:32 +02:00
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imageM.Lock()
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defer imageM.Unlock()
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if i.defaultFramebuffer {
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return nil
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}
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2016-05-16 18:30:13 +02:00
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if i.disposed {
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return nil
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}
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2016-06-11 15:52:07 +02:00
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// TODO: As the texture is already disposed, is it correct to delete it here?
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if err := graphics.Dispose(i.texture, i.framebuffer); err != nil {
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return err
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2016-05-16 17:22:32 +02:00
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}
|
2016-06-10 18:20:55 +02:00
|
|
|
// TODO: Recalc i.pixels here
|
2016-05-16 17:22:32 +02:00
|
|
|
img := image.NewRGBA(image.Rect(0, 0, i.width, i.height))
|
|
|
|
for j := 0; j < i.height; j++ {
|
|
|
|
copy(img.Pix[j*img.Stride:], i.pixels[j*i.width*4:(j+1)*i.width*4])
|
|
|
|
}
|
2016-06-11 17:23:26 +02:00
|
|
|
texture, framebuffer, err := graphics.NewImageFromImage(img, glFilter(ui.GLContext(), i.filter))
|
2016-05-16 17:22:32 +02:00
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
2016-06-11 17:23:26 +02:00
|
|
|
i.texture = texture
|
|
|
|
i.framebuffer = framebuffer
|
2016-05-16 17:22:32 +02:00
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
2016-05-16 18:03:28 +02:00
|
|
|
func (i *imageImpl) Dispose() error {
|
2016-05-07 21:39:37 +02:00
|
|
|
f := func() error {
|
2016-05-12 04:06:12 +02:00
|
|
|
imageM.Lock()
|
|
|
|
defer imageM.Unlock()
|
2016-05-07 21:39:37 +02:00
|
|
|
if i.isDisposed() {
|
|
|
|
return errors.New("ebiten: image is already disposed")
|
|
|
|
}
|
2016-06-11 15:52:07 +02:00
|
|
|
if err := graphics.Dispose(i.texture, i.framebuffer); err != nil {
|
|
|
|
return err
|
2016-05-07 21:39:37 +02:00
|
|
|
}
|
2016-06-11 15:52:07 +02:00
|
|
|
i.framebuffer = nil
|
|
|
|
i.texture = nil
|
2016-05-07 21:39:37 +02:00
|
|
|
i.disposed = true
|
|
|
|
i.pixels = nil
|
|
|
|
runtime.SetFinalizer(i, nil)
|
|
|
|
return nil
|
2016-02-20 17:41:48 +01:00
|
|
|
}
|
2016-05-12 04:06:12 +02:00
|
|
|
|
|
|
|
if theDelayedImageTasks.add(f) {
|
2016-05-07 20:21:39 +02:00
|
|
|
return nil
|
2016-02-20 17:41:48 +01:00
|
|
|
}
|
2016-05-07 21:39:37 +02:00
|
|
|
return f()
|
2015-02-09 02:25:00 +01:00
|
|
|
}
|
|
|
|
|
2016-05-16 18:03:28 +02:00
|
|
|
func (i *imageImpl) isDisposed() bool {
|
2016-05-07 20:42:22 +02:00
|
|
|
return i.disposed
|
2016-02-06 17:27:55 +01:00
|
|
|
}
|
|
|
|
|
2016-05-16 18:03:28 +02:00
|
|
|
func (i *imageImpl) ReplacePixels(p []uint8) error {
|
2016-05-07 17:52:30 +02:00
|
|
|
if l := 4 * i.width * i.height; len(p) != l {
|
2016-04-06 20:49:11 +02:00
|
|
|
return fmt.Errorf("ebiten: p's length must be %d", l)
|
2015-01-20 15:58:58 +01:00
|
|
|
}
|
2016-05-07 21:39:37 +02:00
|
|
|
f := func() error {
|
2016-05-12 04:06:12 +02:00
|
|
|
imageM.Lock()
|
|
|
|
defer imageM.Unlock()
|
2016-06-10 22:48:09 +02:00
|
|
|
// TODO: Copy p?
|
2016-05-07 21:39:37 +02:00
|
|
|
i.pixels = nil
|
|
|
|
if i.isDisposed() {
|
|
|
|
return errors.New("ebiten: image is already disposed")
|
|
|
|
}
|
2016-06-10 22:48:09 +02:00
|
|
|
return i.framebuffer.ReplacePixels(i.texture, p)
|
2016-05-07 20:21:39 +02:00
|
|
|
}
|
2016-05-12 04:06:12 +02:00
|
|
|
if theDelayedImageTasks.add(f) {
|
2016-05-07 20:21:39 +02:00
|
|
|
return nil
|
|
|
|
}
|
2016-05-07 21:39:37 +02:00
|
|
|
return f()
|
2015-01-20 15:58:58 +01:00
|
|
|
}
|
|
|
|
|
2014-12-28 16:21:40 +01:00
|
|
|
// A DrawImageOptions represents options to render an image on an image.
|
2014-12-25 17:39:32 +01:00
|
|
|
type DrawImageOptions struct {
|
2016-02-29 18:16:32 +01:00
|
|
|
ImageParts ImageParts
|
|
|
|
GeoM GeoM
|
|
|
|
ColorM ColorM
|
|
|
|
CompositeMode CompositeMode
|
2015-01-04 16:42:20 +01:00
|
|
|
|
2015-01-05 02:08:54 +01:00
|
|
|
// Deprecated (as of 1.1.0-alpha): Use ImageParts instead.
|
2015-01-04 16:42:20 +01:00
|
|
|
Parts []ImagePart
|
2014-12-24 14:46:00 +01:00
|
|
|
}
|
2016-02-05 15:20:41 +01:00
|
|
|
|
|
|
|
// NewImage returns an empty image.
|
|
|
|
//
|
|
|
|
// NewImage generates a new texture and a new framebuffer.
|
2016-04-06 04:11:31 +02:00
|
|
|
//
|
|
|
|
// This function is concurrent-safe.
|
2016-02-05 15:20:41 +01:00
|
|
|
func NewImage(width, height int, filter Filter) (*Image, error) {
|
2016-05-16 18:03:28 +02:00
|
|
|
image := &imageImpl{
|
2016-05-07 20:21:39 +02:00
|
|
|
width: width,
|
|
|
|
height: height,
|
2016-05-16 17:22:32 +02:00
|
|
|
filter: filter,
|
|
|
|
}
|
2016-05-16 18:03:28 +02:00
|
|
|
eimg, err := theImages.add(image)
|
|
|
|
if err != nil {
|
2016-05-16 17:22:32 +02:00
|
|
|
return nil, err
|
2016-05-07 21:39:37 +02:00
|
|
|
}
|
|
|
|
f := func() error {
|
2016-05-12 04:06:12 +02:00
|
|
|
imageM.Lock()
|
|
|
|
defer imageM.Unlock()
|
2016-06-11 17:23:26 +02:00
|
|
|
texture, framebuffer, err := graphics.NewImage(width, height, glFilter(ui.GLContext(), filter))
|
2016-05-07 21:39:37 +02:00
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
image.framebuffer = framebuffer
|
|
|
|
image.texture = texture
|
2016-05-16 18:03:28 +02:00
|
|
|
runtime.SetFinalizer(image, (*imageImpl).Dispose)
|
2016-06-10 22:48:09 +02:00
|
|
|
if err := image.framebuffer.Fill(color.Transparent); err != nil {
|
2016-05-07 21:39:37 +02:00
|
|
|
return err
|
|
|
|
}
|
|
|
|
return nil
|
2016-02-05 15:20:41 +01:00
|
|
|
}
|
2016-05-12 04:06:12 +02:00
|
|
|
if theDelayedImageTasks.add(f) {
|
2016-05-16 18:03:28 +02:00
|
|
|
return eimg, nil
|
2016-04-06 20:49:11 +02:00
|
|
|
}
|
2016-05-07 21:39:37 +02:00
|
|
|
if err := f(); err != nil {
|
2016-02-19 20:39:43 +01:00
|
|
|
return nil, err
|
|
|
|
}
|
2016-05-16 18:03:28 +02:00
|
|
|
return eimg, nil
|
2016-02-05 15:20:41 +01:00
|
|
|
}
|
|
|
|
|
2016-05-16 18:38:31 +02:00
|
|
|
// NewImageFromImage creates a new image with the given image (source).
|
2016-02-05 15:20:41 +01:00
|
|
|
//
|
|
|
|
// NewImageFromImage generates a new texture and a new framebuffer.
|
2016-04-06 04:11:31 +02:00
|
|
|
//
|
|
|
|
// This function is concurrent-safe.
|
2016-05-16 18:03:28 +02:00
|
|
|
func NewImageFromImage(source image.Image, filter Filter) (*Image, error) {
|
|
|
|
size := source.Bounds().Size()
|
2016-05-07 20:21:39 +02:00
|
|
|
w, h := size.X, size.Y
|
2016-05-12 15:26:53 +02:00
|
|
|
// TODO: Return error when the image is too big!
|
2016-05-16 18:03:28 +02:00
|
|
|
img := &imageImpl{
|
2016-05-07 21:39:37 +02:00
|
|
|
width: w,
|
|
|
|
height: h,
|
2016-05-16 17:22:32 +02:00
|
|
|
filter: filter,
|
|
|
|
}
|
2016-05-16 18:03:28 +02:00
|
|
|
eimg, err := theImages.add(img)
|
|
|
|
if err != nil {
|
2016-05-16 17:22:32 +02:00
|
|
|
return nil, err
|
2016-05-07 21:39:37 +02:00
|
|
|
}
|
|
|
|
f := func() error {
|
2016-05-12 04:06:12 +02:00
|
|
|
// Don't lock while manipulating an image.Image interface.
|
2016-05-16 18:03:28 +02:00
|
|
|
rgbaImg, ok := source.(*image.RGBA)
|
2016-05-12 04:06:12 +02:00
|
|
|
if !ok {
|
2016-05-16 18:03:28 +02:00
|
|
|
origImg := source
|
2016-05-12 04:06:12 +02:00
|
|
|
newImg := image.NewRGBA(origImg.Bounds())
|
|
|
|
draw.Draw(newImg, newImg.Bounds(), origImg, origImg.Bounds().Min, draw.Src)
|
|
|
|
rgbaImg = newImg
|
|
|
|
}
|
|
|
|
imageM.Lock()
|
|
|
|
defer imageM.Unlock()
|
2016-06-11 17:23:26 +02:00
|
|
|
texture, framebuffer, err := graphics.NewImageFromImage(rgbaImg, glFilter(ui.GLContext(), filter))
|
2016-05-07 21:39:37 +02:00
|
|
|
if err != nil {
|
|
|
|
// TODO: texture should be removed here?
|
|
|
|
return err
|
|
|
|
}
|
2016-05-16 18:03:28 +02:00
|
|
|
img.framebuffer = framebuffer
|
|
|
|
img.texture = texture
|
|
|
|
runtime.SetFinalizer(img, (*imageImpl).Dispose)
|
2016-05-07 21:39:37 +02:00
|
|
|
return nil
|
2016-02-19 20:39:43 +01:00
|
|
|
}
|
2016-05-12 04:06:12 +02:00
|
|
|
if theDelayedImageTasks.add(f) {
|
|
|
|
return eimg, nil
|
2016-02-05 15:20:41 +01:00
|
|
|
}
|
2016-05-07 21:39:37 +02:00
|
|
|
if err := f(); err != nil {
|
2016-05-07 20:21:39 +02:00
|
|
|
return nil, err
|
2016-04-06 20:49:11 +02:00
|
|
|
}
|
2016-05-12 04:06:12 +02:00
|
|
|
return eimg, nil
|
2016-02-05 15:20:41 +01:00
|
|
|
}
|
2016-05-15 14:08:39 +02:00
|
|
|
|
|
|
|
func newImageWithZeroFramebuffer(width, height int) (*Image, error) {
|
2016-05-18 15:45:15 +02:00
|
|
|
img, err := newImageWithZeroFramebufferImpl(width, height)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
return img, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func newImageWithZeroFramebufferImpl(width, height int) (*Image, error) {
|
2016-05-15 14:08:39 +02:00
|
|
|
imageM.Lock()
|
|
|
|
defer imageM.Unlock()
|
2016-06-11 17:23:26 +02:00
|
|
|
f, err := graphics.NewZeroFramebuffer(width, height)
|
2016-05-15 14:08:39 +02:00
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
2016-05-16 18:03:28 +02:00
|
|
|
img := &imageImpl{
|
2016-05-16 17:22:32 +02:00
|
|
|
framebuffer: f,
|
|
|
|
texture: nil,
|
|
|
|
width: width,
|
|
|
|
height: height,
|
|
|
|
defaultFramebuffer: true,
|
|
|
|
}
|
2016-05-16 18:03:28 +02:00
|
|
|
eimg, err := theImages.add(img)
|
|
|
|
if err != nil {
|
2016-05-16 17:22:32 +02:00
|
|
|
return nil, err
|
2016-05-15 14:08:39 +02:00
|
|
|
}
|
2016-05-16 18:03:28 +02:00
|
|
|
runtime.SetFinalizer(img, (*imageImpl).Dispose)
|
|
|
|
return eimg, nil
|
2016-05-15 14:08:39 +02:00
|
|
|
}
|