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gpu,app,internal/glimpl: update GL backend for the compute renderer

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Modern graphics APIs have immutable objects, with mutable data. For example,
a texture's dimensions are immutable, while the texture contents is not.
Change the GPU API abstraction to match.

Clearing a Texture is convenient to do with a plain []byte. Generalize
Texture.Upload to take a plain byte slice and introduce a helper function for
uploading *image.RGBA data.

Add TextureFormatRGBA8 a format for the linear RGB colorspace.

Add OpenGL ES 3.1 functions for compute programs.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2020-12-30 16:48:22 +01:00
parent 7d24b790a2
commit bfe2d04c60
11 changed files with 400 additions and 89 deletions
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app/internal/d3d11/d3d11_windows.go
+2 -2
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@@ -1127,14 +1127,14 @@ func (c *_ID3D11DeviceContext) PSSetShader(s *_ID3D11PixelShader) {
)
}
func (c *_ID3D11DeviceContext) UpdateSubresource(res *_ID3D11Resource, rowPitch, depthPitch uint32, data []byte) {
func (c *_ID3D11DeviceContext) UpdateSubresource(res *_ID3D11Resource, dstBox *_D3D11_BOX, rowPitch, depthPitch uint32, data []byte) {
syscall.Syscall9(
c.vtbl.UpdateSubresource,
7,
uintptr(unsafe.Pointer(c)),
uintptr(unsafe.Pointer(res)),
0, // DstSubresource
0, // pDstBox
uintptr(unsafe.Pointer(dstBox)),
uintptr(unsafe.Pointer(&data[0])),
uintptr(rowPitch),
uintptr(depthPitch),