mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 13:07:26 +01:00
431 lines
12 KiB
Go
431 lines
12 KiB
Go
// Copyright 2023 The Ebitengine 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 directx
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"image"
|
|
"unsafe"
|
|
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphics"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
|
|
)
|
|
|
|
type image12 struct {
|
|
graphics *graphics12
|
|
id graphicsdriver.ImageID
|
|
width int
|
|
height int
|
|
screen bool
|
|
|
|
states [frameCount]_D3D12_RESOURCE_STATES
|
|
texture *_ID3D12Resource
|
|
stencil *_ID3D12Resource
|
|
rtvDescriptorHeap *_ID3D12DescriptorHeap
|
|
dsvDescriptorHeap *_ID3D12DescriptorHeap
|
|
|
|
uploadingStagingBuffers []*_ID3D12Resource
|
|
}
|
|
|
|
func (i *image12) ID() graphicsdriver.ImageID {
|
|
return i.id
|
|
}
|
|
|
|
func (i *image12) Dispose() {
|
|
// Dipose the images later as this image might still be used.
|
|
i.graphics.removeImage(i)
|
|
}
|
|
|
|
func (i *image12) disposeImpl() {
|
|
if i.dsvDescriptorHeap != nil {
|
|
i.dsvDescriptorHeap.Release()
|
|
i.dsvDescriptorHeap = nil
|
|
}
|
|
if i.rtvDescriptorHeap != nil {
|
|
i.rtvDescriptorHeap.Release()
|
|
i.rtvDescriptorHeap = nil
|
|
}
|
|
if i.stencil != nil {
|
|
i.stencil.Release()
|
|
i.stencil = nil
|
|
}
|
|
if i.texture != nil {
|
|
i.texture.Release()
|
|
i.texture = nil
|
|
}
|
|
}
|
|
|
|
func (*image12) IsInvalidated() bool {
|
|
return false
|
|
}
|
|
|
|
func (i *image12) ReadPixels(args []graphicsdriver.PixelsArgs) error {
|
|
if i.screen {
|
|
return errors.New("directx: Pixels cannot be called on the screen")
|
|
}
|
|
|
|
if err := i.graphics.flushCommandList(i.graphics.drawCommandList); err != nil {
|
|
return err
|
|
}
|
|
|
|
var unionRegion image.Rectangle
|
|
for _, a := range args {
|
|
unionRegion = unionRegion.Union(a.Region)
|
|
}
|
|
|
|
desc := _D3D12_RESOURCE_DESC{
|
|
Dimension: _D3D12_RESOURCE_DIMENSION_TEXTURE2D,
|
|
Alignment: 0,
|
|
Width: uint64(unionRegion.Dx()),
|
|
Height: uint32(unionRegion.Dy()),
|
|
DepthOrArraySize: 1,
|
|
MipLevels: 0,
|
|
Format: _DXGI_FORMAT_R8G8B8A8_UNORM,
|
|
SampleDesc: _DXGI_SAMPLE_DESC{
|
|
Count: 1,
|
|
Quality: 0,
|
|
},
|
|
Layout: _D3D12_TEXTURE_LAYOUT_UNKNOWN,
|
|
Flags: _D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET,
|
|
}
|
|
layouts, _, _, totalBytes := i.graphics.device.GetCopyableFootprints(&desc, 0, 1, 0)
|
|
readingStagingBuffer, err := createBuffer(i.graphics.device, totalBytes, _D3D12_HEAP_TYPE_READBACK)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer func() {
|
|
readingStagingBuffer.Release()
|
|
}()
|
|
|
|
if rb, ok := i.transiteState(_D3D12_RESOURCE_STATE_COPY_SOURCE); ok {
|
|
i.graphics.copyCommandList.ResourceBarrier([]_D3D12_RESOURCE_BARRIER_Transition{rb})
|
|
}
|
|
|
|
m, err := readingStagingBuffer.Map(0, &_D3D12_RANGE{0, 0})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
dst := _D3D12_TEXTURE_COPY_LOCATION_PlacedFootPrint{
|
|
pResource: readingStagingBuffer,
|
|
Type: _D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT,
|
|
PlacedFootprint: layouts,
|
|
}
|
|
src := _D3D12_TEXTURE_COPY_LOCATION_SubresourceIndex{
|
|
pResource: i.texture,
|
|
Type: _D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX,
|
|
SubresourceIndex: 0,
|
|
}
|
|
i.graphics.needFlushCopyCommandList = true
|
|
i.graphics.copyCommandList.CopyTextureRegion_PlacedFootPrint_SubresourceIndex(
|
|
&dst, 0, 0, 0, &src, &_D3D12_BOX{
|
|
left: uint32(unionRegion.Min.X),
|
|
top: uint32(unionRegion.Min.Y),
|
|
front: 0,
|
|
right: uint32(unionRegion.Max.X),
|
|
bottom: uint32(unionRegion.Max.Y),
|
|
back: 1,
|
|
})
|
|
|
|
if err := i.graphics.flushCommandList(i.graphics.copyCommandList); err != nil {
|
|
return err
|
|
}
|
|
|
|
stride := int(layouts.Footprint.RowPitch)
|
|
srcPix := unsafe.Slice((*byte)(unsafe.Pointer(m)), totalBytes)
|
|
for _, a := range args {
|
|
w := a.Region.Dx()
|
|
if unionRegion == a.Region && stride == 4*w {
|
|
copy(a.Pixels, srcPix)
|
|
continue
|
|
}
|
|
offset := 4*(a.Region.Min.X-unionRegion.Min.X) + stride*(a.Region.Min.Y-unionRegion.Min.Y)
|
|
for j := 0; j < a.Region.Dy(); j++ {
|
|
copy(a.Pixels[j*w*4:(j+1)*w*4], srcPix[offset+j*stride:])
|
|
}
|
|
}
|
|
|
|
readingStagingBuffer.Unmap(0, nil)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (i *image12) WritePixels(args []graphicsdriver.PixelsArgs) error {
|
|
if i.screen {
|
|
return errors.New("directx: WritePixels cannot be called on the screen")
|
|
}
|
|
|
|
if err := i.graphics.flushCommandList(i.graphics.drawCommandList); err != nil {
|
|
return err
|
|
}
|
|
|
|
var region image.Rectangle
|
|
for _, a := range args {
|
|
region = region.Union(a.Region)
|
|
}
|
|
|
|
desc := _D3D12_RESOURCE_DESC{
|
|
Dimension: _D3D12_RESOURCE_DIMENSION_TEXTURE2D,
|
|
Alignment: 0,
|
|
Width: uint64(region.Dx()),
|
|
Height: uint32(region.Dy()),
|
|
DepthOrArraySize: 1,
|
|
MipLevels: 0,
|
|
Format: _DXGI_FORMAT_R8G8B8A8_UNORM,
|
|
SampleDesc: _DXGI_SAMPLE_DESC{
|
|
Count: 1,
|
|
Quality: 0,
|
|
},
|
|
Layout: _D3D12_TEXTURE_LAYOUT_UNKNOWN,
|
|
Flags: _D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET,
|
|
}
|
|
layouts, _, _, totalBytes := i.graphics.device.GetCopyableFootprints(&desc, 0, 1, 0)
|
|
uploadingStagingBuffer, err := createBuffer(i.graphics.device, totalBytes, _D3D12_HEAP_TYPE_UPLOAD)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
i.uploadingStagingBuffers = append(i.uploadingStagingBuffers, uploadingStagingBuffer)
|
|
|
|
if rb, ok := i.transiteState(_D3D12_RESOURCE_STATE_COPY_DEST); ok {
|
|
i.graphics.copyCommandList.ResourceBarrier([]_D3D12_RESOURCE_BARRIER_Transition{rb})
|
|
}
|
|
|
|
m, err := uploadingStagingBuffer.Map(0, &_D3D12_RANGE{0, 0})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
i.graphics.needFlushCopyCommandList = true
|
|
|
|
srcBytes := unsafe.Slice((*byte)(unsafe.Pointer(m)), totalBytes)
|
|
for _, a := range args {
|
|
for j := 0; j < a.Region.Dy(); j++ {
|
|
copy(srcBytes[((a.Region.Min.Y-region.Min.Y)+j)*int(layouts.Footprint.RowPitch)+(a.Region.Min.X-region.Min.X)*4:], a.Pixels[j*a.Region.Dx()*4:(j+1)*a.Region.Dx()*4])
|
|
}
|
|
}
|
|
|
|
for _, a := range args {
|
|
dst := _D3D12_TEXTURE_COPY_LOCATION_SubresourceIndex{
|
|
pResource: i.texture,
|
|
Type: _D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX,
|
|
SubresourceIndex: 0,
|
|
}
|
|
src := _D3D12_TEXTURE_COPY_LOCATION_PlacedFootPrint{
|
|
pResource: uploadingStagingBuffer,
|
|
Type: _D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT,
|
|
PlacedFootprint: layouts,
|
|
}
|
|
i.graphics.copyCommandList.CopyTextureRegion_SubresourceIndex_PlacedFootPrint(
|
|
&dst, uint32(a.Region.Min.X), uint32(a.Region.Min.Y), 0, &src, &_D3D12_BOX{
|
|
left: uint32(a.Region.Min.X - region.Min.X),
|
|
top: uint32(a.Region.Min.Y - region.Min.Y),
|
|
front: 0,
|
|
right: uint32(a.Region.Max.X - region.Min.X),
|
|
bottom: uint32(a.Region.Max.Y - region.Min.Y),
|
|
back: 1,
|
|
})
|
|
}
|
|
|
|
uploadingStagingBuffer.Unmap(0, nil)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (i *image12) resource() *_ID3D12Resource {
|
|
if i.screen {
|
|
return i.graphics.renderTargets[i.graphics.frameIndex]
|
|
}
|
|
return i.texture
|
|
}
|
|
|
|
func (i *image12) state() _D3D12_RESOURCE_STATES {
|
|
if i.screen {
|
|
return i.states[i.graphics.frameIndex]
|
|
}
|
|
return i.states[0]
|
|
}
|
|
|
|
func (i *image12) setState(newState _D3D12_RESOURCE_STATES) {
|
|
if i.screen {
|
|
i.states[i.graphics.frameIndex] = newState
|
|
return
|
|
}
|
|
i.states[0] = newState
|
|
}
|
|
|
|
func (i *image12) transiteState(newState _D3D12_RESOURCE_STATES) (_D3D12_RESOURCE_BARRIER_Transition, bool) {
|
|
if i.state() == newState {
|
|
return _D3D12_RESOURCE_BARRIER_Transition{}, false
|
|
}
|
|
oldState := i.state()
|
|
i.setState(newState)
|
|
|
|
return _D3D12_RESOURCE_BARRIER_Transition{
|
|
Type: _D3D12_RESOURCE_BARRIER_TYPE_TRANSITION,
|
|
Flags: _D3D12_RESOURCE_BARRIER_FLAG_NONE,
|
|
Transition: _D3D12_RESOURCE_TRANSITION_BARRIER{
|
|
pResource: i.resource(),
|
|
Subresource: _D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES,
|
|
StateBefore: oldState,
|
|
StateAfter: newState,
|
|
},
|
|
}, true
|
|
}
|
|
|
|
func (i *image12) internalSize() (int, int) {
|
|
if i.screen {
|
|
return i.width, i.height
|
|
}
|
|
return graphics.InternalImageSize(i.width), graphics.InternalImageSize(i.height)
|
|
}
|
|
|
|
func (i *image12) setAsRenderTarget(drawCommandList *_ID3D12GraphicsCommandList, device *_ID3D12Device, useStencil bool) error {
|
|
if err := i.ensureRenderTargetView(device); err != nil {
|
|
return err
|
|
}
|
|
|
|
if i.screen {
|
|
if useStencil {
|
|
return fmt.Errorf("directx: stencils are not available on the screen framebuffer")
|
|
}
|
|
rtv, err := i.graphics.rtvDescriptorHeap.GetCPUDescriptorHandleForHeapStart()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
rtv.Offset(int32(i.graphics.frameIndex), i.graphics.rtvDescriptorSize)
|
|
drawCommandList.OMSetRenderTargets([]_D3D12_CPU_DESCRIPTOR_HANDLE{rtv}, false, nil)
|
|
return nil
|
|
}
|
|
|
|
rtv, err := i.rtvDescriptorHeap.GetCPUDescriptorHandleForHeapStart()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if !useStencil {
|
|
drawCommandList.OMSetRenderTargets([]_D3D12_CPU_DESCRIPTOR_HANDLE{rtv}, false, nil)
|
|
return nil
|
|
}
|
|
|
|
if err := i.ensureDepthStencilView(device); err != nil {
|
|
return err
|
|
}
|
|
dsv, err := i.dsvDescriptorHeap.GetCPUDescriptorHandleForHeapStart()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
drawCommandList.OMSetStencilRef(0)
|
|
drawCommandList.OMSetRenderTargets([]_D3D12_CPU_DESCRIPTOR_HANDLE{rtv}, false, &dsv)
|
|
drawCommandList.ClearDepthStencilView(dsv, _D3D12_CLEAR_FLAG_STENCIL, 0, 0, nil)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (i *image12) ensureRenderTargetView(device *_ID3D12Device) error {
|
|
if i.screen {
|
|
return nil
|
|
}
|
|
|
|
if i.rtvDescriptorHeap != nil {
|
|
return nil
|
|
}
|
|
|
|
h, err := device.CreateDescriptorHeap(&_D3D12_DESCRIPTOR_HEAP_DESC{
|
|
Type: _D3D12_DESCRIPTOR_HEAP_TYPE_RTV,
|
|
NumDescriptors: 1,
|
|
Flags: _D3D12_DESCRIPTOR_HEAP_FLAG_NONE,
|
|
NodeMask: 0,
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
i.rtvDescriptorHeap = h
|
|
|
|
rtv, err := i.rtvDescriptorHeap.GetCPUDescriptorHandleForHeapStart()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
device.CreateRenderTargetView(i.texture, nil, rtv)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (i *image12) ensureDepthStencilView(device *_ID3D12Device) error {
|
|
if i.screen {
|
|
return fmt.Errorf("directx: stencils are not available on the screen framebuffer")
|
|
}
|
|
|
|
if i.dsvDescriptorHeap != nil {
|
|
return nil
|
|
}
|
|
|
|
h, err := device.CreateDescriptorHeap(&_D3D12_DESCRIPTOR_HEAP_DESC{
|
|
Type: _D3D12_DESCRIPTOR_HEAP_TYPE_DSV,
|
|
NumDescriptors: 1,
|
|
Flags: _D3D12_DESCRIPTOR_HEAP_FLAG_NONE,
|
|
NodeMask: 0,
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
i.dsvDescriptorHeap = h
|
|
|
|
dsv, err := i.dsvDescriptorHeap.GetCPUDescriptorHandleForHeapStart()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if i.stencil == nil {
|
|
s, err := device.CreateCommittedResource(&_D3D12_HEAP_PROPERTIES{
|
|
Type: _D3D12_HEAP_TYPE_DEFAULT,
|
|
CPUPageProperty: _D3D12_CPU_PAGE_PROPERTY_UNKNOWN,
|
|
MemoryPoolPreference: _D3D12_MEMORY_POOL_UNKNOWN,
|
|
CreationNodeMask: 1,
|
|
VisibleNodeMask: 1,
|
|
}, _D3D12_HEAP_FLAG_NONE, &_D3D12_RESOURCE_DESC{
|
|
Dimension: _D3D12_RESOURCE_DIMENSION_TEXTURE2D,
|
|
Alignment: 0,
|
|
Width: uint64(graphics.InternalImageSize(i.width)),
|
|
Height: uint32(graphics.InternalImageSize(i.height)),
|
|
DepthOrArraySize: 1,
|
|
MipLevels: 0,
|
|
Format: _DXGI_FORMAT_D24_UNORM_S8_UINT,
|
|
SampleDesc: _DXGI_SAMPLE_DESC{
|
|
Count: 1,
|
|
Quality: 0,
|
|
},
|
|
Layout: _D3D12_TEXTURE_LAYOUT_UNKNOWN,
|
|
Flags: _D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL,
|
|
}, _D3D12_RESOURCE_STATE_DEPTH_WRITE, &_D3D12_CLEAR_VALUE{
|
|
Format: _DXGI_FORMAT_D24_UNORM_S8_UINT,
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
i.stencil = s
|
|
}
|
|
device.CreateDepthStencilView(i.stencil, nil, dsv)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (i *image12) releaseUploadingStagingBuffers() {
|
|
for idx, buf := range i.uploadingStagingBuffers {
|
|
buf.Release()
|
|
i.uploadingStagingBuffers[idx] = nil
|
|
}
|
|
i.uploadingStagingBuffers = i.uploadingStagingBuffers[:0]
|
|
}
|