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internal/graphicsdriver/directx: stop using GetCopyableFootprints

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GetCopyableFootprints seems very conservative and returns a quite
big memory size. Instead of using the info from GetCopyableFootprints
let's use our own minimum footprint.
This commit is contained in:
Hajime Hoshi 2022-09-18 22:40:07 +09:00
parent cd9477491d
commit 2eb1efe3cc
2 changed files with 79 additions and 45 deletions
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1
internal/graphicsdriver/directx/api_windows.go
View File

@ -59,6 +59,7 @@ const (
_D3D12_SDK_VERSION = (_D3D12_SDK_VERSION_MAJOR << 16) | _D3D12_SDK_VERSION_MINOR
_D3D12_SDK_VERSION_MAJOR = 2
_D3D12_SDK_VERSION_MINOR = 4
_D3D12_TEXTURE_DATA_PITCH_ALIGNMENT = 256
_D3D12XBOX_DEFAULT_SIZE_BYTES = 0xffffffff
)

123
internal/graphicsdriver/directx/graphics_windows.go
View File

@ -1075,20 +1075,13 @@ func (g *Graphics) NewImage(width, height int) (graphicsdriver.Image, error) {
return nil, err
}
layouts, _, _, totalBytes := g.device.GetCopyableFootprints(&desc, 0, 1, 0)
if totalBytes == ^uint64(0) {
return nil, fmt.Errorf("directx: GetCopyableFootprints returned an invalid total bytes")
}
i := &Image{
graphics: g,
id: g.genNextImageID(),
width: width,
height: height,
texture: t,
states: [frameCount]_D3D12_RESOURCE_STATES{state},
layouts: layouts,
totalBytes: totalBytes,
graphics: g,
id: g.genNextImageID(),
width: width,
height: height,
texture: t,
states: [frameCount]_D3D12_RESOURCE_STATES{state},
}
g.addImage(i)
return i, nil
@ -1460,8 +1453,6 @@ type Image struct {
states [frameCount]_D3D12_RESOURCE_STATES
texture *_ID3D12Resource
stencil *_ID3D12Resource
layouts _D3D12_PLACED_SUBRESOURCE_FOOTPRINT
totalBytes uint64
uploadingStagingBuffer *_ID3D12Resource
readingStagingBuffer *_ID3D12Resource
rtvDescriptorHeap *_ID3D12DescriptorHeap
@ -1508,28 +1499,40 @@ func (*Image) IsInvalidated() bool {
return false
}
func (i *Image) ensureUploadingStagingBuffer() error {
func (i *Image) ensureUploadingStagingBuffer(size uint64) (*_ID3D12Resource, error) {
if i.uploadingStagingBuffer != nil && i.uploadingStagingBuffer.GetDesc().Width < size {
i.uploadingStagingBuffer.Release()
i.uploadingStagingBuffer = nil
}
if i.uploadingStagingBuffer != nil {
return nil
return i.uploadingStagingBuffer, nil
}
var err error
i.uploadingStagingBuffer, err = createBuffer(i.graphics.device, i.totalBytes, _D3D12_HEAP_TYPE_UPLOAD)
usb, err := createBuffer(i.graphics.device, size, _D3D12_HEAP_TYPE_UPLOAD)
if err != nil {
return err
return nil, err
}
return nil
i.uploadingStagingBuffer = usb
return usb, nil
}
func (i *Image) ensureReadingStagingBuffer() error {
func (i *Image) ensureReadingStagingBuffer(size uint64) (*_ID3D12Resource, error) {
if i.readingStagingBuffer != nil && i.readingStagingBuffer.GetDesc().Width < size {
i.readingStagingBuffer.Release()
i.readingStagingBuffer = nil
}
if i.readingStagingBuffer != nil {
return nil
return i.readingStagingBuffer, nil
}
var err error
i.readingStagingBuffer, err = createBuffer(i.graphics.device, i.totalBytes, _D3D12_HEAP_TYPE_READBACK)
rsb, err := createBuffer(i.graphics.device, size, _D3D12_HEAP_TYPE_READBACK)
if err != nil {
return err
return nil, err
}
return nil
i.readingStagingBuffer = rsb
return rsb, nil
}
func (i *Image) ReadPixels(buf []byte, x, y, width, height int) error {
@ -1541,7 +1544,9 @@ func (i *Image) ReadPixels(buf []byte, x, y, width, height int) error {
return err
}
if err := i.ensureReadingStagingBuffer(); err != nil {
alignedWidth := align(4 * width)
rsb, err := i.ensureReadingStagingBuffer(uint64(alignedWidth * height))
if err != nil {
return err
}
@ -1549,15 +1554,24 @@ func (i *Image) ReadPixels(buf []byte, x, y, width, height int) error {
i.graphics.copyCommandList.ResourceBarrier([]_D3D12_RESOURCE_BARRIER_Transition{rb})
}
m, err := i.readingStagingBuffer.Map(0, &_D3D12_RANGE{0, 0})
m, err := rsb.Map(0, &_D3D12_RANGE{0, 0})
if err != nil {
return err
}
dst := _D3D12_TEXTURE_COPY_LOCATION_PlacedFootPrint{
pResource: i.readingStagingBuffer,
Type: _D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT,
PlacedFootprint: i.layouts,
pResource: rsb,
Type: _D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT,
PlacedFootprint: _D3D12_PLACED_SUBRESOURCE_FOOTPRINT{
Offset: 0,
Footprint: _D3D12_SUBRESOURCE_FOOTPRINT{
Format: _DXGI_FORMAT_R8G8B8A8_UNORM,
Width: uint32(width),
Height: uint32(height),
Depth: 1,
RowPitch: uint32(alignedWidth),
},
},
}
src := _D3D12_TEXTURE_COPY_LOCATION_SubresourceIndex{
pResource: i.texture,
@ -1582,14 +1596,14 @@ func (i *Image) ReadPixels(buf []byte, x, y, width, height int) error {
var dstBytes []byte
h := (*reflect.SliceHeader)(unsafe.Pointer(&dstBytes))
h.Data = uintptr(m)
h.Len = int(i.totalBytes)
h.Cap = int(i.totalBytes)
h.Len = alignedWidth * height
h.Cap = alignedWidth * height
for j := 0; j < height; j++ {
copy(buf[j*width*4:(j+1)*width*4], dstBytes[j*int(i.layouts.Footprint.RowPitch):])
copy(buf[j*width*4:(j+1)*width*4], dstBytes[j*alignedWidth:])
}
i.readingStagingBuffer.Unmap(0, nil)
rsb.Unmap(0, nil)
return nil
}
@ -1603,7 +1617,10 @@ func (i *Image) WritePixels(args []*graphicsdriver.WritePixelsArgs) error {
return err
}
if err := i.ensureUploadingStagingBuffer(); err != nil {
iw, ih := graphics.InternalImageSize(i.width), graphics.InternalImageSize(i.height)
alignedWidth := align(4 * iw)
usb, err := i.ensureUploadingStagingBuffer(uint64(alignedWidth * ih))
if err != nil {
return err
}
@ -1611,7 +1628,7 @@ func (i *Image) WritePixels(args []*graphicsdriver.WritePixelsArgs) error {
i.graphics.copyCommandList.ResourceBarrier([]_D3D12_RESOURCE_BARRIER_Transition{rb})
}
m, err := i.uploadingStagingBuffer.Map(0, &_D3D12_RANGE{0, 0})
m, err := usb.Map(0, &_D3D12_RANGE{0, 0})
if err != nil {
return err
}
@ -1621,11 +1638,11 @@ func (i *Image) WritePixels(args []*graphicsdriver.WritePixelsArgs) error {
var srcBytes []byte
h := (*reflect.SliceHeader)(unsafe.Pointer(&srcBytes))
h.Data = uintptr(m)
h.Len = int(i.totalBytes)
h.Cap = int(i.totalBytes)
h.Len = alignedWidth * ih
h.Cap = alignedWidth * ih
for _, a := range args {
for j := 0; j < a.Height; j++ {
copy(srcBytes[(a.Y+j)*int(i.layouts.Footprint.RowPitch)+a.X*4:], a.Pixels[j*a.Width*4:(j+1)*a.Width*4])
copy(srcBytes[(a.Y+j)*alignedWidth+a.X*4:], a.Pixels[j*a.Width*4:(j+1)*a.Width*4])
}
dst := _D3D12_TEXTURE_COPY_LOCATION_SubresourceIndex{
@ -1634,9 +1651,18 @@ func (i *Image) WritePixels(args []*graphicsdriver.WritePixelsArgs) error {
SubresourceIndex: 0,
}
src := _D3D12_TEXTURE_COPY_LOCATION_PlacedFootPrint{
pResource: i.uploadingStagingBuffer,
Type: _D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT,
PlacedFootprint: i.layouts,
pResource: usb,
Type: _D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT,
PlacedFootprint: _D3D12_PLACED_SUBRESOURCE_FOOTPRINT{
Offset: 0,
Footprint: _D3D12_SUBRESOURCE_FOOTPRINT{
Format: _DXGI_FORMAT_R8G8B8A8_UNORM,
Width: uint32(iw),
Height: uint32(ih),
Depth: 1,
RowPitch: uint32(alignedWidth),
},
},
}
i.graphics.copyCommandList.CopyTextureRegion_SubresourceIndex_PlacedFootPrint(
&dst, uint32(a.X), uint32(a.Y), 0, &src, &_D3D12_BOX{
@ -1649,7 +1675,7 @@ func (i *Image) WritePixels(args []*graphicsdriver.WritePixelsArgs) error {
})
}
i.uploadingStagingBuffer.Unmap(0, nil)
usb.Unmap(0, nil)
return nil
}
@ -2015,3 +2041,10 @@ func (s *Shader) uniformsToFloat32s(uniforms [][]float32) []float32 {
}
return fs
}
func align(x int) int {
if x%_D3D12_TEXTURE_DATA_PITCH_ALIGNMENT == 0 {
return x
}
return (((x - 1) / _D3D12_TEXTURE_DATA_PITCH_ALIGNMENT) + 1) * _D3D12_TEXTURE_DATA_PITCH_ALIGNMENT
}