I thought the reason they are included nowadays in hardware is because
they are required by gl 4.3 and of course GLES (I think they were added
in GL via ES compatibility).
Of course, for proper gles (3.2) you also need astc, but still it looks
to me like these formats are here to stay.

Roland


Am 04.01.2018 um 04:43 schrieb Mao, David:
> Hi Bas,
> AMD does not support ETC2 officially on the GFX9. 
> It would be risky for Radv to export that feature for gfx9 family. 
> Anyway, t’s just a heads up, and it is up to you to make the final call. 
> FYI: AMDVLK and proprietary AMD vulkan driver don’t’ support that. 
> 
> Thanks.
> Best Regards,
> David
> 
>> On Jan 4, 2018, at 8:38 AM, Bas Nieuwenhuizen <b...@basnieuwenhuizen.nl> 
>> wrote:
>>
>> Was surprised that is even supported by Vega.
>> ---
>> src/amd/vulkan/radv_device.c        |  4 +++-
>> src/amd/vulkan/radv_formats.c       | 36 ++++++++++++++++++++++++++++++++++++
>> src/amd/vulkan/vk_format_layout.csv | 20 ++++++++++----------
>> 3 files changed, 49 insertions(+), 11 deletions(-)
>>
>> diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
>> index cbf8f5cf49..bbed9f0ec2 100644
>> --- a/src/amd/vulkan/radv_device.c
>> +++ b/src/amd/vulkan/radv_device.c
>> @@ -530,6 +530,7 @@ void radv_GetPhysicalDeviceFeatures(
>>      VkPhysicalDevice                            physicalDevice,
>>      VkPhysicalDeviceFeatures*                   pFeatures)
>> {
>> +    RADV_FROM_HANDLE(radv_physical_device, pdevice, physicalDevice);
>>      memset(pFeatures, 0, sizeof(*pFeatures));
>>
>>      *pFeatures = (VkPhysicalDeviceFeatures) {
>> @@ -553,7 +554,8 @@ void radv_GetPhysicalDeviceFeatures(
>>              .alphaToOne                               = true,
>>              .multiViewport                            = true,
>>              .samplerAnisotropy                        = true,
>> -            .textureCompressionETC2                   = false,
>> +            .textureCompressionETC2                   = 
>> pdevice->rad_info.chip_class >= GFX9 ||
>> +                                                        
>> pdevice->rad_info.family == CHIP_STONEY,
>>              .textureCompressionASTC_LDR               = false,
>>              .textureCompressionBC                     = true,
>>              .occlusionQueryPrecise                    = true,
>> diff --git a/src/amd/vulkan/radv_formats.c b/src/amd/vulkan/radv_formats.c
>> index c008c1bae6..4b0b4c8320 100644
>> --- a/src/amd/vulkan/radv_formats.c
>> +++ b/src/amd/vulkan/radv_formats.c
>> @@ -224,6 +224,28 @@ uint32_t radv_translate_tex_dataformat(VkFormat format,
>>              }
>>      }
>>
>> +    if (desc->layout == VK_FORMAT_LAYOUT_ETC) {
>> +            switch (format) {
>> +            case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
>> +            case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
>> +                    return V_008F14_IMG_DATA_FORMAT_ETC2_RGB;
>> +            case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
>> +            case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
>> +                    return V_008F14_IMG_DATA_FORMAT_ETC2_RGBA1;
>> +            case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
>> +            case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
>> +                    return V_008F14_IMG_DATA_FORMAT_ETC2_RGBA;
>> +            case VK_FORMAT_EAC_R11_UNORM_BLOCK:
>> +            case VK_FORMAT_EAC_R11_SNORM_BLOCK:
>> +                    return V_008F14_IMG_DATA_FORMAT_ETC2_R;
>> +            case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
>> +            case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
>> +                    return V_008F14_IMG_DATA_FORMAT_ETC2_RG;
>> +            default:
>> +                    break;
>> +            }
>> +    }
>> +
>>      if (format == VK_FORMAT_E5B9G9R9_UFLOAT_PACK32) {
>>              return V_008F14_IMG_DATA_FORMAT_5_9_9_9;
>>      } else if (format == VK_FORMAT_B10G11R11_UFLOAT_PACK32) {
>> @@ -351,10 +373,15 @@ uint32_t radv_translate_tex_numformat(VkFormat format,
>>                              case VK_FORMAT_BC2_SRGB_BLOCK:
>>                              case VK_FORMAT_BC3_SRGB_BLOCK:
>>                              case VK_FORMAT_BC7_SRGB_BLOCK:
>> +                            case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
>> +                            case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
>> +                            case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
>>                                      return V_008F14_IMG_NUM_FORMAT_SRGB;
>>                              case VK_FORMAT_BC4_SNORM_BLOCK:
>>                              case VK_FORMAT_BC5_SNORM_BLOCK:
>>                              case VK_FORMAT_BC6H_SFLOAT_BLOCK:
>> +                            case VK_FORMAT_EAC_R11_SNORM_BLOCK:
>> +                            case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
>>                                      return V_008F14_IMG_NUM_FORMAT_SNORM;
>>                              default:
>>                                      return V_008F14_IMG_NUM_FORMAT_UNORM;
>> @@ -557,6 +584,15 @@ radv_physical_device_get_format_properties(struct 
>> radv_physical_device *physical
>>              return;
>>      }
>>
>> +    if (desc->layout == VK_FORMAT_LAYOUT_ETC &&
>> +        physical_device->rad_info.chip_class < GFX9 &&
>> +        physical_device->rad_info.family != CHIP_STONEY) {
>> +            out_properties->linearTilingFeatures = linear;
>> +            out_properties->optimalTilingFeatures = tiled;
>> +            out_properties->bufferFeatures = buffer;
>> +            return;
>> +    }
>> +
>>      if (radv_is_storage_image_format_supported(physical_device, format)) {
>>              tiled |= VK_FORMAT_FEATURE_STORAGE_IMAGE_BIT;
>>              linear |= VK_FORMAT_FEATURE_STORAGE_IMAGE_BIT;
>> diff --git a/src/amd/vulkan/vk_format_layout.csv 
>> b/src/amd/vulkan/vk_format_layout.csv
>> index ae9ceda08e..f9c2e6f7c3 100644
>> --- a/src/amd/vulkan/vk_format_layout.csv
>> +++ b/src/amd/vulkan/vk_format_layout.csv
>> @@ -148,16 +148,16 @@ VK_FORMAT_BC6H_UFLOAT_BLOCK          , bptc,  4, 4, 
>> x128,     ,     ,     , xyz1
>> VK_FORMAT_BC6H_SFLOAT_BLOCK          , bptc,  4, 4, x128,     ,     ,     , 
>> xyz1, rgb
>> VK_FORMAT_BC7_UNORM_BLOCK            , bptc,  4, 4, x128,     ,     ,     , 
>> xyzw, rgb
>> VK_FORMAT_BC7_SRGB_BLOCK             , bptc,  4, 4, x128,     ,     ,     , 
>> xyzw, srgb
>> -VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK,
>> -VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK,
>> -VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK,
>> -VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK,
>> -VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK,
>> -VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK,
>> -VK_FORMAT_EAC_R11_UNORM_BLOCK,
>> -VK_FORMAT_EAC_R11_SNORM_BLOCK,
>> -VK_FORMAT_EAC_R11G11_UNORM_BLOCK,
>> -VK_FORMAT_EAC_R11G11_SNORM_BLOCK,
>> +VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK    , etc,   4, 4, x64,      ,     ,     , 
>> xyz1, rgb
>> +VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK     , etc,   4, 4, x64,      ,     ,     , 
>> xyz1, srgb
>> +VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK  , etc,   4, 4, x64,      ,     ,     , 
>> xyzw, rgb
>> +VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK   , etc,   4, 4, x64,      ,     ,     , 
>> xyzw, srgb
>> +VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK  , etc,   4, 4, x128,     ,     ,     , 
>> xyzw, rgb
>> +VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK   , etc,   4, 4, x128,     ,     ,     , 
>> xyzw, srgb
>> +VK_FORMAT_EAC_R11_UNORM_BLOCK        , etc,   4, 4, x64,      ,     ,     , 
>> x001, rgb
>> +VK_FORMAT_EAC_R11_SNORM_BLOCK        , etc,   4, 4, x64,      ,     ,     , 
>> x001, rgb
>> +VK_FORMAT_EAC_R11G11_UNORM_BLOCK     , etc,   4, 4, x128,     ,     ,     , 
>> xy01, rgb
>> +VK_FORMAT_EAC_R11G11_SNORM_BLOCK     , etc,   4, 4, x128,     ,     ,     , 
>> xy01, rgb
>> VK_FORMAT_ASTC_4x4_UNORM_BLOCK,
>> VK_FORMAT_ASTC_4x4_SRGB_BLOCK,
>> VK_FORMAT_ASTC_5x4_UNORM_BLOCK,
>> -- 
>> 2.15.1
>>
>> _______________________________________________
>> mesa-dev mailing list
>> mesa-dev@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
> 
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