<div dir="ltr"><div class="gmail_quote"><div dir="ltr">On Sun, Aug 26, 2018 at 11:54 PM Tapani Pälli <<a href="mailto:tapani.palli@intel.com">tapani.palli@intel.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
<br>
On 08/24/2018 05:04 PM, Jason Ekstrand wrote:<br>
> On Fri, Aug 24, 2018 at 12:08 AM Tapani Pälli <<a href="mailto:tapani.palli@intel.com" target="_blank">tapani.palli@intel.com</a> <br>
> <mailto:<a href="mailto:tapani.palli@intel.com" target="_blank">tapani.palli@intel.com</a>>> wrote:<br>
> <br>
> <br>
> <br>
>     On 08/22/2018 05:18 PM, Jason Ekstrand wrote:<br>
>      > On Tue, Aug 21, 2018 at 3:27 AM Tapani Pälli<br>
>     <<a href="mailto:tapani.palli@intel.com" target="_blank">tapani.palli@intel.com</a> <mailto:<a href="mailto:tapani.palli@intel.com" target="_blank">tapani.palli@intel.com</a>><br>
>      > <mailto:<a href="mailto:tapani.palli@intel.com" target="_blank">tapani.palli@intel.com</a> <mailto:<a href="mailto:tapani.palli@intel.com" target="_blank">tapani.palli@intel.com</a>>>><br>
>     wrote:<br>
>      ><br>
>      >     When adding YUV support, we need to figure out<br>
>     implementation-defined<br>
>      >     external format identifier.<br>
>      ><br>
>      >     Signed-off-by: Tapani Pälli <<a href="mailto:tapani.palli@intel.com" target="_blank">tapani.palli@intel.com</a><br>
>     <mailto:<a href="mailto:tapani.palli@intel.com" target="_blank">tapani.palli@intel.com</a>><br>
>      >     <mailto:<a href="mailto:tapani.palli@intel.com" target="_blank">tapani.palli@intel.com</a> <mailto:<a href="mailto:tapani.palli@intel.com" target="_blank">tapani.palli@intel.com</a>>>><br>
>      >     ---<br>
>      >       src/intel/vulkan/anv_android.c | 99<br>
>      >     ++++++++++++++++++++++++++++++++++++++++++<br>
>      >       1 file changed, 99 insertions(+)<br>
>      ><br>
>      >     diff --git a/src/intel/vulkan/anv_android.c<br>
>      >     b/src/intel/vulkan/anv_android.c<br>
>      >     index 46c41d57861..7d0eb588e2b 100644<br>
>      >     --- a/src/intel/vulkan/anv_android.c<br>
>      >     +++ b/src/intel/vulkan/anv_android.c<br>
>      >     @@ -29,6 +29,8 @@<br>
>      >       #include <sync/sync.h><br>
>      ><br>
>      >       #include "anv_private.h"<br>
>      >     +#include "vk_format_info.h"<br>
>      >     +#include "vk_util.h"<br>
>      ><br>
>      >       static int anv_hal_open(const struct hw_module_t* mod,<br>
>     const char*<br>
>      >     id, struct hw_device_t** dev);<br>
>      >       static int anv_hal_close(struct hw_device_t *dev);<br>
>      >     @@ -96,6 +98,103 @@ anv_hal_close(struct hw_device_t *dev)<br>
>      >          return -1;<br>
>      >       }<br>
>      ><br>
>      >     +static VkResult<br>
>      >     +get_ahw_buffer_format_properties(<br>
>      >     +   VkDevice device_h,<br>
>      >     +   const struct AHardwareBuffer *buffer,<br>
>      >     +   VkAndroidHardwareBufferFormatPropertiesANDROID *pProperties)<br>
>      >     +{<br>
>      >     +   ANV_FROM_HANDLE(anv_device, device, device_h);<br>
>      >     +<br>
>      >     +   /* Get a description of buffer contents . */<br>
>      >     +   AHardwareBuffer_Desc desc;<br>
>      >     +   AHardwareBuffer_describe(buffer, &desc);<br>
>      >     +<br>
>      >     +   /* Verify description. */<br>
>      >     +   uint64_t gpu_usage =<br>
>      >     +      AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE |<br>
>      >     +      AHARDWAREBUFFER_USAGE_GPU_COLOR_OUTPUT |<br>
>      >     +      AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER;<br>
>      >     +<br>
>      >     +   /* "Buffer must be a valid Android hardware buffer object<br>
>     with<br>
>      >     at least<br>
>      >     +    * one of the AHARDWAREBUFFER_USAGE_GPU_* usage flags."<br>
>      >     +    */<br>
>      >     +   if (!(desc.usage & (gpu_usage)))<br>
>      >     +      return VK_ERROR_INVALID_EXTERNAL_HANDLE_KHR;<br>
>      >     +<br>
>      >     +   /* Fill properties fields based on description. */<br>
>      >     +   VkAndroidHardwareBufferFormatPropertiesANDROID *p =<br>
>     pProperties;<br>
>      >     +<br>
>      >     +   p->pNext = NULL;<br>
>      ><br>
>      ><br>
>      > You shouldn't be overwriting pNext.  That's used by the client to<br>
>     let<br>
>      > them chain in multiple structs to fill out in case Google ever<br>
>     extends<br>
>      > this extension.  Also, while we're here, it'd be good to throw in an<br>
>      > assert that p->sType is the right thing.<br>
> <br>
>     Yes of course, will remove.<br>
> <br>
>      >     +   p->format = vk_format_from_android(desc.format);<br>
>      >     +   p->externalFormat = 1; /* XXX */<br>
>      >     +<br>
>      >     +   const struct anv_format *anv_format =<br>
>     anv_get_format(p->format);<br>
>      >     +   struct anv_physical_device *physical_device =<br>
>      >     +      &device->instance->physicalDevice;<br>
>      >     +   const struct gen_device_info *devinfo =<br>
>     &physical_device->info;<br>
>      ><br>
>      ><br>
>      > If all you need is devinfo, that's avilable in the device; you don't<br>
>      > need to get the physical device for it.  Should be device->info.<br>
> <br>
>     OK<br>
> <br>
>      >     +<br>
>      >     +   p->formatFeatures =<br>
>      >     +      anv_get_image_format_features(devinfo, p->format,<br>
>      >     +                                    anv_format,<br>
>      >     VK_IMAGE_TILING_OPTIMAL);<br>
>      >     +<br>
>      >     +   /* "The formatFeatures member *must* include<br>
>      >     +    *  VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT and at least one of<br>
>      >     +    *  VK_FORMAT_FEATURE_MIDPOINT_CHROMA_SAMPLES_BIT or<br>
>      >     +    *  VK_FORMAT_FEATURE_COSITED_CHROMA_SAMPLES_BIT"<br>
>      >     +    */<br>
>      >     +   p->formatFeatures |=<br>
>      >     +      VK_FORMAT_FEATURE_MIDPOINT_CHROMA_SAMPLES_BIT;<br>
>      ><br>
>      ><br>
>      > Uh... Why not just throw in SAMPLED_BIT?  For that matter, all of<br>
>     the<br>
>      > formats you have in your conversion helpers support sampling.  Maybe<br>
>      > just replace that with an assert for now.<br>
> <br>
>     Yeah, VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT is there. Well thing is that<br>
>     dEQP checks explicitly that either<br>
>     VK_FORMAT_FEATURE_MIDPOINT_CHROMA_SAMPLES_BIT or<br>
>     VK_FORMAT_FEATURE_COSITED_CHROMA_SAMPLES_BIT exists (independent of<br>
>     surface format). TBH I'm not sure what to do about that.<br>
> <br>
> <br>
> That's annoying...  Is that in a Khronos CTS test or a Google test?  <br>
> Either way, we should try to get it corrected.  If you don't know how to <br>
> do that, I can send some e-mails.<br>
<br>
But per the Vulkan spec quote above it's not a bug, it says that <br>
"formatFeatures member must include sampled bit and at least one of <br>
MIDPOINT_CHROMA_SAMPLES or COSITED_CHROMA_SAMPLES. So .. I guess I <br>
should limit the supported formats to only those that have <br>
anv_format->can_ycbcr() set?<br></blockquote><div><br></div><div> I'll grant that it's consistent with the spec but it also seems like the spec has a bug.  I'll file a spec bug.</div><div><br></div><div>--Jason<br></div></div></div>