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internal/graphicsdriver/directx: adjust buffer count

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Apparently the buffer count should be 1 with a non-flipping swap effect.

Updates #2613
This commit is contained in:
Hajime Hoshi 2023-03-30 21:08:20 +09:00
parent 61ced5127b
commit 09250ff4f3
1 changed files with 6 additions and 1 deletions
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7
internal/graphicsdriver/directx/graphics_windows.go
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@ -156,6 +156,8 @@ type graphicsInfra struct {
// lastTime is the last time for rendering.
lastTime time.Time
bufferCount int
}
func newGraphicsInfra() (*graphicsInfra, error) {
@ -275,8 +277,11 @@ func (g *graphicsInfra) initSwapChain(width, height int, device unsafe.Pointer,
// https://learn.microsoft.com/en-us/windows/win32/api/dxgi/ne-dxgi-dxgi_swap_effect
if !isWindows10OrGreaterWin32() {
desc.SwapEffect = _DXGI_SWAP_EFFECT_SEQUENTIAL
desc.BufferCount = 1
}
g.bufferCount = int(desc.BufferCount)
if g.allowTearing {
desc.Flags |= uint32(_DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING)
}
@ -313,7 +318,7 @@ func (g *graphicsInfra) resizeSwapChain(width, height int) error {
if g.allowTearing {
flag |= uint32(_DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING)
}
if err := g.swapChain.ResizeBuffers(frameCount, uint32(width), uint32(height), _DXGI_FORMAT_B8G8R8A8_UNORM, flag); err != nil {
if err := g.swapChain.ResizeBuffers(uint32(g.bufferCount), uint32(width), uint32(height), _DXGI_FORMAT_B8G8R8A8_UNORM, flag); err != nil {
return err
}
return nil