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gpu/internal/d3d11: introduce newBuffer for common buffer creation

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Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2021-08-28 12:49:11 +01:00
parent d724f61d06
commit e841288b88
1 changed files with 14 additions and 22 deletions
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gpu/internal/d3d11/d3d11_windows.go
+14 -22
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@@ -329,6 +329,14 @@ func (b *Backend) newInputLayout(vertexShader shader.Sources, layout []driver.In
}
func (b *Backend) NewBuffer(typ driver.BufferBinding, size int) (driver.Buffer, error) {
return b.newBuffer(typ, size, nil, false)
}
func (b *Backend) NewImmutableBuffer(typ driver.BufferBinding, data []byte) (driver.Buffer, error) {
return b.newBuffer(typ, len(data), data, true)
}
func (b *Backend) newBuffer(typ driver.BufferBinding, size int, data []byte, immutable bool) (*Buffer, error) {
if typ&driver.BufferBindingUniforms != 0 {
if typ != driver.BufferBindingUniforms {
return nil, errors.New("uniform buffers cannot have other bindings")
@@ -338,35 +346,19 @@ func (b *Backend) NewBuffer(typ driver.BufferBinding, size int) (driver.Buffer,
}
}
bind := convBufferBinding(typ)
var usage uint32
if immutable {
usage = d3d11.USAGE_IMMUTABLE
}
buf, err := b.dev.CreateBuffer(&d3d11.BUFFER_DESC{
ByteWidth: uint32(size),
BindFlags: bind,
}, nil)
if err != nil {
return nil, err
}
return &Buffer{backend: b, buf: buf, bind: bind, size: size}, nil
}
func (b *Backend) NewImmutableBuffer(typ driver.BufferBinding, data []byte) (driver.Buffer, error) {
if typ&driver.BufferBindingUniforms != 0 {
if typ != driver.BufferBindingUniforms {
return nil, errors.New("uniform buffers cannot have other bindings")
}
if len(data)%16 != 0 {
return nil, fmt.Errorf("constant buffer size is %d, expected a multiple of 16", len(data))
}
}
bind := convBufferBinding(typ)
buf, err := b.dev.CreateBuffer(&d3d11.BUFFER_DESC{
ByteWidth: uint32(len(data)),
Usage: d3d11.USAGE_IMMUTABLE,
Usage: usage,
BindFlags: bind,
}, data)
if err != nil {
return nil, err
}
return &Buffer{backend: b, buf: buf, bind: bind, size: len(data), immutable: true}, nil
return &Buffer{backend: b, buf: buf, bind: bind, size: size, immutable: immutable}, nil
}
func (b *Backend) NewComputeProgram(shader shader.Sources) (driver.Program, error) {