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gpu: switch from uniform buffers to combined push buffers

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Vulkan doesn't support changing uniforms during a render pass. However,
push constants *can* be changed. The gio-shader repository was changed
to use push constants instead of uniforms, this change implements the
corresponding driver and renderer change.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2021-09-10 13:37:12 +02:00
parent 3a98f004f9
commit 21ca9d13a8
9 changed files with 99 additions and 224 deletions
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gpu/internal/metal/metal_darwin.go
+1 -12
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@@ -1005,20 +1005,9 @@ func (b *Backend) BindVertexUniforms(buf driver.Buffer) {
}
if bf.buffer != 0 {
C.renderEncSetVertexBuffer(enc, bf.buffer, uniformBufferIndex, 0)
} else if bf.size > 0 {
C.renderEncSetVertexBytes(enc, unsafe.Pointer(&bf.store[0]), C.NSUInteger(bf.size), uniformBufferIndex)
}
}
func (b *Backend) BindFragmentUniforms(buf driver.Buffer) {
bf := buf.(*Buffer)
enc := b.renderEnc
if enc == 0 {
panic("no active render pass")
}
if bf.buffer != 0 {
C.renderEncSetFragmentBuffer(enc, bf.buffer, uniformBufferIndex, 0)
} else if bf.size > 0 {
C.renderEncSetVertexBytes(enc, unsafe.Pointer(&bf.store[0]), C.NSUInteger(bf.size), uniformBufferIndex)
C.renderEncSetFragmentBytes(enc, unsafe.Pointer(&bf.store[0]), C.NSUInteger(bf.size), uniformBufferIndex)
}
}