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restorable: Add Shader (WIP)

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This commit is contained in:
Hajime Hoshi 2020-05-25 00:46:23 +09:00
parent 9bf24ba545
commit 732f288d20
6 changed files with 210 additions and 37 deletions
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63
internal/restorable/image.go
View File

@ -76,6 +76,8 @@ type drawTrianglesHistoryItem struct {
mode driver.CompositeMode
filter driver.Filter
address driver.Address
shader *Shader
uniforms map[int]interface{}
}
// Image represents an image that can be restored when GL context is lost.
@ -339,6 +341,20 @@ func (i *Image) ReplacePixels(pixels []byte, x, y, width, height int) {
}
}
// convertUniformVariables converts the uniform variables for the lower layer (graphicscommand).
func convertUniformVariables(uniforms map[int]interface{}) map[int]interface{} {
us := map[int]interface{}{}
for k, v := range uniforms {
switch v := v.(type) {
case *Image:
us[k] = v.image
default:
us[k] = v
}
}
return us
}
// DrawTriangles draws triangles with the given image.
//
// The vertex floats are:
@ -355,7 +371,7 @@ func (i *Image) ReplacePixels(pixels []byte, x, y, width, height int) {
// 9: Color G
// 10: Color B
// 11: Color Y
func (i *Image) DrawTriangles(img *Image, vertices []float32, indices []uint16, colorm *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address) {
func (i *Image) DrawTriangles(img *Image, vertices []float32, indices []uint16, colorm *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address, shader *Shader, uniforms map[int]interface{}) {
if i.priority {
panic("restorable: DrawTriangles cannot be called on a priority image")
}
@ -364,16 +380,25 @@ func (i *Image) DrawTriangles(img *Image, vertices []float32, indices []uint16,
}
theImages.makeStaleIfDependingOn(i)
if img.stale || img.volatile || i.screen || !needsRestoring() || i.volatile {
if (img != nil && (img.stale || img.volatile)) || i.screen || !needsRestoring() || i.volatile {
i.makeStale()
} else {
i.appendDrawTrianglesHistory(img, vertices, indices, colorm, mode, filter, address)
// TODO: Need to copy uniform variables?
i.appendDrawTrianglesHistory(img, vertices, indices, colorm, mode, filter, address, shader, uniforms)
}
i.image.DrawTriangles(img.image, vertices, indices, colorm, mode, filter, address, nil, nil)
var s *graphicscommand.Shader
if shader != nil {
s = shader.shader
}
var gimg *graphicscommand.Image
if img != nil {
gimg = img.image
}
i.image.DrawTriangles(gimg, vertices, indices, colorm, mode, filter, address, s, convertUniformVariables(uniforms))
}
// appendDrawTrianglesHistory appends a draw-image history item to the image.
func (i *Image) appendDrawTrianglesHistory(image *Image, vertices []float32, indices []uint16, colorm *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address) {
func (i *Image) appendDrawTrianglesHistory(image *Image, vertices []float32, indices []uint16, colorm *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address, shader *Shader, uniforms map[int]interface{}) {
if i.stale || i.volatile || i.screen {
return
}
@ -390,6 +415,7 @@ func (i *Image) appendDrawTrianglesHistory(image *Image, vertices []float32, ind
copy(vs, vertices)
is := make([]uint16, len(indices))
copy(is, indices)
item := &drawTrianglesHistoryItem{
image: image,
vertices: vs,
@ -398,6 +424,8 @@ func (i *Image) appendDrawTrianglesHistory(image *Image, vertices []float32, ind
mode: mode,
filter: filter,
address: address,
shader: shader,
uniforms: uniforms,
}
i.drawTrianglesHistory = append(i.drawTrianglesHistory, item)
}
@ -479,6 +507,11 @@ func (i *Image) dependsOn(target *Image) bool {
if c.image == target {
return true
}
for _, v := range c.uniforms {
if img, ok := v.(*Image); ok && img == target {
return true
}
}
}
return false
}
@ -487,8 +520,15 @@ func (i *Image) dependsOn(target *Image) bool {
func (i *Image) dependingImages() map[*Image]struct{} {
r := map[*Image]struct{}{}
for _, c := range i.drawTrianglesHistory {
if c.image != nil {
r[c.image] = struct{}{}
}
for _, v := range c.uniforms {
if img, ok := v.(*Image); ok {
r[img] = struct{}{}
}
}
}
return r
}
@ -533,10 +573,19 @@ func (i *Image) restore() error {
i.basePixels.Apply(gimg)
for _, c := range i.drawTrianglesHistory {
if c.image.hasDependency() {
if c.image != nil && c.image.hasDependency() {
panic("restorable: all dependencies must be already resolved but not")
}
gimg.DrawTriangles(c.image.image, c.vertices, c.indices, c.colorm, c.mode, c.filter, c.address, nil, nil)
// TODO: Check the uniform variable's images.
var img *graphicscommand.Image
if c.image != nil {
img = c.image.image
}
var s *graphicscommand.Shader
if c.shader != nil {
s = c.shader.shader
}
gimg.DrawTriangles(img, c.vertices, c.indices, c.colorm, c.mode, c.filter, c.address, s, convertUniformVariables(c.uniforms))
}
if len(i.drawTrianglesHistory) > 0 {

22
internal/restorable/images.go
View File

@ -40,12 +40,14 @@ func EnableRestoringForTesting() {
// images is a set of Image objects.
type images struct {
images map[*Image]struct{}
shaders map[*Shader]struct{}
lastTarget *Image
}
// theImages represents the images for the current process.
var theImages = &images{
images: map[*Image]struct{}{},
shaders: map[*Shader]struct{}{},
}
// ResolveStaleImages flushes the queued draw commands and resolves
@ -118,12 +120,23 @@ func (i *images) add(img *Image) {
i.images[img] = struct{}{}
}
func (i *images) addShader(shader *Shader) {
i.shaders[shader] = struct{}{}
}
// remove removes img from the images.
func (i *images) remove(img *Image) {
i.makeStaleIfDependingOnImpl(img)
delete(i.images, img)
}
func (i *images) removeShader(shader *Shader) {
// TODO: Do we have to make images stale?
// However, dependencies are determiend by uniform variables...
// ??
delete(i.shaders, shader)
}
// resolveStaleImages resolves stale images.
func (i *images) resolveStaleImages() error {
i.lastTarget = nil
@ -165,6 +178,15 @@ func (i *images) restore() error {
panic("restorable: restore cannot be called when restoring is disabled")
}
// Dispose all the shaders ahead of restoring. A current shader ID and a new shader ID can be duplicated.
for s := range i.shaders {
s.shader.Dispose()
s.shader = nil
}
for s := range i.shaders {
s.restore()
}
// Dispose all the images ahead of restoring. A current texture ID and a new texture ID can be duplicated.
// TODO: Write a test to confirm that ID duplication never happens.
for i := range i.images {

52
internal/restorable/images_test.go
View File

@ -131,7 +131,7 @@ func TestRestoreChain(t *testing.T) {
for i := 0; i < num-1; i++ {
vs := quadVertices(1, 1, 0, 0)
is := graphics.QuadIndices()
imgs[i+1].DrawTriangles(imgs[i], vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
imgs[i+1].DrawTriangles(imgs[i], vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
}
if err := ResolveStaleImages(); err != nil {
t.Fatal(err)
@ -173,10 +173,10 @@ func TestRestoreChain2(t *testing.T) {
imgs[8].ReplacePixels([]byte{clr8.R, clr8.G, clr8.B, clr8.A}, 0, 0, w, h)
is := graphics.QuadIndices()
imgs[8].DrawTriangles(imgs[7], quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
imgs[9].DrawTriangles(imgs[8], quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
imgs[8].DrawTriangles(imgs[7], quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
imgs[9].DrawTriangles(imgs[8], quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
for i := 0; i < 7; i++ {
imgs[i+1].DrawTriangles(imgs[i], quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
imgs[i+1].DrawTriangles(imgs[i], quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
}
if err := ResolveStaleImages(); err != nil {
@ -216,10 +216,10 @@ func TestRestoreOverrideSource(t *testing.T) {
clr1 := color.RGBA{0x00, 0x00, 0x01, 0xff}
img1.ReplacePixels([]byte{clr0.R, clr0.G, clr0.B, clr0.A}, 0, 0, w, h)
is := graphics.QuadIndices()
img2.DrawTriangles(img1, quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img3.DrawTriangles(img2, quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img2.DrawTriangles(img1, quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
img3.DrawTriangles(img2, quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
img0.ReplacePixels([]byte{clr1.R, clr1.G, clr1.B, clr1.A}, 0, 0, w, h)
img1.DrawTriangles(img0, quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img1.DrawTriangles(img0, quadVertices(w, h, 0, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
if err := ResolveStaleImages(); err != nil {
t.Fatal(err)
}
@ -298,23 +298,23 @@ func TestRestoreComplexGraph(t *testing.T) {
}()
vs := quadVertices(w, h, 0, 0)
is := graphics.QuadIndices()
img3.DrawTriangles(img0, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img3.DrawTriangles(img0, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
vs = quadVertices(w, h, 1, 0)
img3.DrawTriangles(img1, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img3.DrawTriangles(img1, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
vs = quadVertices(w, h, 1, 0)
img4.DrawTriangles(img1, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img4.DrawTriangles(img1, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
vs = quadVertices(w, h, 2, 0)
img4.DrawTriangles(img2, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img4.DrawTriangles(img2, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
vs = quadVertices(w, h, 0, 0)
img5.DrawTriangles(img3, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img5.DrawTriangles(img3, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
vs = quadVertices(w, h, 0, 0)
img6.DrawTriangles(img3, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img6.DrawTriangles(img3, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
vs = quadVertices(w, h, 1, 0)
img6.DrawTriangles(img4, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img6.DrawTriangles(img4, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
vs = quadVertices(w, h, 0, 0)
img7.DrawTriangles(img2, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img7.DrawTriangles(img2, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
vs = quadVertices(w, h, 2, 0)
img7.DrawTriangles(img3, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img7.DrawTriangles(img3, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
if err := ResolveStaleImages(); err != nil {
t.Fatal(err)
}
@ -406,8 +406,8 @@ func TestRestoreRecursive(t *testing.T) {
img0.Dispose()
}()
is := graphics.QuadIndices()
img1.DrawTriangles(img0, quadVertices(w, h, 1, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img0.DrawTriangles(img1, quadVertices(w, h, 1, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
img1.DrawTriangles(img0, quadVertices(w, h, 1, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
img0.DrawTriangles(img1, quadVertices(w, h, 1, 0), is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
if err := ResolveStaleImages(); err != nil {
t.Fatal(err)
}
@ -501,7 +501,7 @@ func TestDrawTrianglesAndReplacePixels(t *testing.T) {
vs := quadVertices(1, 1, 0, 0)
is := graphics.QuadIndices()
img1.DrawTriangles(img0, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
img1.DrawTriangles(img0, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
img1.ReplacePixels([]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, 0, 0, 2, 1)
if err := ResolveStaleImages(); err != nil {
@ -538,8 +538,8 @@ func TestDispose(t *testing.T) {
defer img2.Dispose()
is := graphics.QuadIndices()
img1.DrawTriangles(img2, quadVertices(1, 1, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
img0.DrawTriangles(img1, quadVertices(1, 1, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
img1.DrawTriangles(img2, quadVertices(1, 1, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
img0.DrawTriangles(img1, quadVertices(1, 1, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
img1.Dispose()
if err := ResolveStaleImages(); err != nil {
@ -647,7 +647,7 @@ func TestReplacePixelsOnly(t *testing.T) {
vs := quadVertices(1, 1, 0, 0)
is := graphics.QuadIndices()
img1.DrawTriangles(img0, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
img1.DrawTriangles(img0, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
img0.ReplacePixels([]byte{5, 6, 7, 8}, 0, 0, 1, 1)
// BasePixelsForTesting is available without GPU accessing.
@ -700,7 +700,7 @@ func TestReadPixelsFromVolatileImage(t *testing.T) {
src.ReplacePixels(pix, 0, 0, w, h)
vs := quadVertices(1, 1, 0, 0)
is := graphics.QuadIndices()
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
// Read the pixels. If the implementation is correct, dst tries to read its pixels from GPU due to being
// stale.
@ -721,7 +721,7 @@ func TestAllowReplacePixelsAfterDrawTriangles(t *testing.T) {
vs := quadVertices(w, h, 0, 0)
is := graphics.QuadIndices()
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
dst.ReplacePixels(make([]byte, 4*w*h), 0, 0, w, h)
// ReplacePixels for a whole image doesn't panic.
}
@ -739,7 +739,7 @@ func TestDisallowReplacePixelsForPartAfterDrawTriangles(t *testing.T) {
vs := quadVertices(w, h, 0, 0)
is := graphics.QuadIndices()
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
dst.ReplacePixels(make([]byte, 4), 0, 0, 1, 1)
}
@ -835,7 +835,7 @@ func TestMutateSlices(t *testing.T) {
vs := quadVertices(w, h, 0, 0)
is := make([]uint16, len(graphics.QuadIndices()))
copy(is, graphics.QuadIndices())
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero)
dst.DrawTriangles(src, vs, is, nil, driver.CompositeModeSourceOver, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
for i := range vs {
vs[i] = 0
}

45
internal/restorable/shader.go Normal file
View File

@ -0,0 +1,45 @@
// Copyright 2020 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 restorable
import (
"github.com/hajimehoshi/ebiten/internal/graphicscommand"
"github.com/hajimehoshi/ebiten/internal/shaderir"
)
type Shader struct {
shader *graphicscommand.Shader
ir *shaderir.Program
}
func NewShader(program *shaderir.Program) *Shader {
s := &Shader{
shader: graphicscommand.NewShader(program),
ir: program,
}
theImages.addShader(s)
return s
}
func (s *Shader) Dispose() {
theImages.removeShader(s)
s.shader.Dispose()
s.shader = nil
s.ir = nil
}
func (s *Shader) restore() {
s.shader = graphicscommand.NewShader(s.ir)
}

57
internal/restorable/shader_test.go Normal file
View File

@ -0,0 +1,57 @@
// Copyright 2018 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 restorable_test
import (
"image"
"image/color"
"testing"
"github.com/hajimehoshi/ebiten/internal/driver"
"github.com/hajimehoshi/ebiten/internal/graphics"
"github.com/hajimehoshi/ebiten/internal/graphicscommand"
. "github.com/hajimehoshi/ebiten/internal/restorable"
etesting "github.com/hajimehoshi/ebiten/internal/testing"
)
func TestShader(t *testing.T) {
if !graphicscommand.IsShaderAvailable() {
t.Skip("shader is not available on this environment")
}
img := newImageFromImage(image.NewRGBA(image.Rect(0, 0, 1, 1)))
defer img.Dispose()
ir := etesting.ShaderProgramFill(0xff, 0, 0, 0xff)
s := NewShader(&ir)
is := graphics.QuadIndices()
us := map[int]interface{}{
0: []float32{1, 1},
}
img.DrawTriangles(nil, quadVertices(1, 1, 0, 0), is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, s, us)
if err := ResolveStaleImages(); err != nil {
t.Fatal(err)
}
if err := RestoreIfNeeded(); err != nil {
t.Fatal(err)
}
want := color.RGBA{0xff, 0, 0, 0xff}
got := pixelsToColor(img.BasePixelsForTesting(), 0, 0)
if !sameColors(got, want, 1) {
t.Errorf("got %v, want %v", got, want)
}
}

4
internal/shareable/image.go
View File

@ -214,7 +214,7 @@ func (i *Image) ensureNotShared() {
dx1, dy1, sx1, sy1, sx0, sy0, sx1, sy1, 1, 1, 1, 1,
}
is := graphics.QuadIndices()
newImg.DrawTriangles(i.backend.restorable, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero)
newImg.DrawTriangles(i.backend.restorable, vs, is, nil, driver.CompositeModeCopy, driver.FilterNearest, driver.AddressClampToZero, nil, nil)
i.dispose(false)
i.backend = &backend{
@ -316,7 +316,7 @@ func (i *Image) DrawTriangles(img *Image, vertices []float32, indices []uint16,
vertices[i*graphics.VertexFloatNum+7] += oyf
}
i.backend.restorable.DrawTriangles(img.backend.restorable, vertices, indices, colorm, mode, filter, address)
i.backend.restorable.DrawTriangles(img.backend.restorable, vertices, indices, colorm, mode, filter, address, nil, nil)
i.nonUpdatedCount = 0
delete(imagesToMakeShared, i)