[Mesa-dev] [PATCH 2/2] vulkan/wsi/x11: add support for IMMEDIATE present mode

[Jason Ekstrand]

Sure.  I'm not 100% clear on what async means, but I think I have the
general idea.

Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>

On Tue, Oct 25, 2016 at 8:13 PM, Dave Airlie <airlied at gmail.com> wrote:

> From: Dave Airlie <airlied at redhat.com>
>
> We shouldn't be using ASYNC here, that would be used
> for immediate mode, so let's implement that.
>
> Signed-off-by: Dave Airlie <airlied at redhat.com>
> ---
>  src/vulkan/wsi/wsi_common_x11.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/src/vulkan/wsi/wsi_common_x11.c b/src/vulkan/wsi/wsi_common_
> x11.c
> index bae1d18..77aea1d 100644
> --- a/src/vulkan/wsi/wsi_common_x11.c
> +++ b/src/vulkan/wsi/wsi_common_x11.c
> @@ -141,6 +141,7 @@ static const VkSurfaceFormatKHR formats[] = {
>  };
>
>  static const VkPresentModeKHR present_modes[] = {
> +   VK_PRESENT_MODE_IMMEDIATE_KHR,
>     VK_PRESENT_MODE_MAILBOX_KHR,
>  };
>
> @@ -642,7 +643,8 @@ x11_queue_present(struct wsi_swapchain *anv_chain,
>     int64_t divisor = 0;
>     int64_t remainder = 0;
>
> -   options |= XCB_PRESENT_OPTION_ASYNC;
> +   if (chain->base.present_mode == VK_PRESENT_MODE_IMMEDIATE_KHR)
> +      options |= XCB_PRESENT_OPTION_ASYNC;
>
>     xshmfence_reset(image->shm_fence);
>
> --
> 2.5.5
>
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