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app/internal/d3d11: try more floating point formats

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Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2020-02-29 12:57:21 +01:00
parent 0160bba020
commit 0ceccf3c93
2 changed files with 27 additions and 11 deletions
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app/internal/d3d11/backend_windows.go
+25 -11
View File
@@ -120,23 +120,37 @@ func NewDevice() (*Device, error) {
_IUnknownRelease(unsafe.Pointer(d3dctx), d3dctx.vtbl.Release)
return nil, fmt.Errorf("d3d11: feature level too low: %d", featLvl)
}
format := uint32(_DXGI_FORMAT_R16_FLOAT)
need := uint32(_D3D11_FORMAT_SUPPORT_TEXTURE2D | _D3D11_FORMAT_SUPPORT_RENDER_TARGET)
if use, _ := d3ddev.CheckFormatSupport(format); use&need == 0 {
// Fall back to a d3d 9.2 format.
format = _DXGI_FORMAT_R32_FLOAT
if use, _ = d3ddev.CheckFormatSupport(format); use&need == 0 {
_IUnknownRelease(unsafe.Pointer(d3ddev), d3ddev.vtbl.Release)
_IUnknownRelease(unsafe.Pointer(d3dctx), d3dctx.vtbl.Release)
return nil, fmt.Errorf("d3d11: no available floating point formats")
}
floatFormat, ok := detectFloatFormat(d3ddev)
if !ok {
_IUnknownRelease(unsafe.Pointer(d3ddev), d3ddev.vtbl.Release)
_IUnknownRelease(unsafe.Pointer(d3dctx), d3dctx.vtbl.Release)
return nil, fmt.Errorf("d3d11: no available floating point formats")
}
dev.floatFormat = format
dev.floatFormat = floatFormat
dev.depthStates = make(map[depthState]*_ID3D11DepthStencilState)
dev.blendStates = make(map[blendState]*_ID3D11BlendState)
return dev, nil
}
func detectFloatFormat(dev *_ID3D11Device) (uint32, bool) {
formats := []uint32{
_DXGI_FORMAT_R16_FLOAT,
_DXGI_FORMAT_R32_FLOAT,
_DXGI_FORMAT_R16G16_FLOAT,
_DXGI_FORMAT_R32G32_FLOAT,
// These last two are really wasteful, but c'est la vie.
_DXGI_FORMAT_R16G16B16A16_FLOAT,
_DXGI_FORMAT_R32G32B32A32_FLOAT,
}
for _, format := range formats {
need := uint32(_D3D11_FORMAT_SUPPORT_TEXTURE2D | _D3D11_FORMAT_SUPPORT_RENDER_TARGET)
if support, _ := dev.CheckFormatSupport(format); support&need == need {
return format, true
}
}
return 0, false
}
func (d *Device) CreateSwapChain(hwnd windows.Handle) (*SwapChain, error) {
dxgiDev, err := _IUnknownQueryInterface(unsafe.Pointer(d.dev), d.dev.vtbl.QueryInterface, &_IID_IDXGIDevice)
if err != nil {
app/internal/d3d11/d3d11_windows.go
+2
View File
@@ -567,6 +567,8 @@ const (
_DXGI_FORMAT_R16G16_SINT = 38
_DXGI_FORMAT_R16_UINT = 57
_DXGI_FORMAT_D24_UNORM_S8_UINT = 45
_DXGI_FORMAT_R16G16_FLOAT = 34
_DXGI_FORMAT_R16G16B16A16_FLOAT = 10
_D3D11_FORMAT_SUPPORT_TEXTURE2D = 0x20
_D3D11_FORMAT_SUPPORT_RENDER_TARGET = 0x4000