anv/image: Add support for modifiers for WSI

This adds support for the modifiers portion of the WSI "extension".

Reviewed-by: Daniel Stone <[email protected]>

1 files changed, 38 insertions, 0 deletions

diff --git a/src/intel/vulkan/anv_formats.c b/src/intel/vulkan/anv_formats.c
index 4075ae8e620..9c52ad5acbd 100644
--- a/src/intel/vulkan/anv_formats.c
+++ b/src/intel/vulkan/anv_formats.c
@@ -22,6 +22,7 @@
  */
 
 #include "anv_private.h"
+#include "drm_fourcc.h"
 #include "vk_enum_to_str.h"
 #include "vk_format_info.h"
 #include "vk_util.h"
@@ -651,6 +652,38 @@ get_buffer_format_features(const struct gen_device_info *devinfo,
    return flags;
 }
 
+static void
+get_wsi_format_modifier_properties_list(const struct anv_physical_device *physical_device,
+                                        VkFormat vk_format,
+                                        struct wsi_format_modifier_properties_list *list)
+{
+   const struct anv_format *anv_format = anv_get_format(vk_format);
+
+   VK_OUTARRAY_MAKE(out, list->modifier_properties, &list->modifier_count);
+
+   /* This is a simplified list where all the modifiers are available */
+   assert(vk_format == VK_FORMAT_B8G8R8_SRGB ||
+          vk_format == VK_FORMAT_B8G8R8_UNORM ||
+          vk_format == VK_FORMAT_B8G8R8A8_SRGB ||
+          vk_format == VK_FORMAT_B8G8R8A8_UNORM);
+
+   uint64_t modifiers[] = {
+      DRM_FORMAT_MOD_LINEAR,
+      I915_FORMAT_MOD_X_TILED,
+      I915_FORMAT_MOD_Y_TILED,
+   };
+
+   for (uint32_t i = 0; i < ARRAY_SIZE(modifiers); i++) {
+      vk_outarray_append(&out, mod_props) {
+         mod_props->modifier = modifiers[i];
+         if (isl_drm_modifier_has_aux(modifiers[i]))
+            mod_props->modifier_plane_count = 2;
+         else
+            mod_props->modifier_plane_count = anv_format->n_planes;
+      }
+   }
+}
+
 void anv_GetPhysicalDeviceFormatProperties(
     VkPhysicalDevice                            physicalDevice,
     VkFormat                                    vk_format,
@@ -677,11 +710,16 @@ void anv_GetPhysicalDeviceFormatProperties2KHR(
     VkFormat                                    format,
     VkFormatProperties2KHR*                     pFormatProperties)
 {
+   ANV_FROM_HANDLE(anv_physical_device, physical_device, physicalDevice);
    anv_GetPhysicalDeviceFormatProperties(physicalDevice, format,
                                          &pFormatProperties->formatProperties);
 
    vk_foreach_struct(ext, pFormatProperties->pNext) {
       switch (ext->sType) {
+      case VK_STRUCTURE_TYPE_WSI_FORMAT_MODIFIER_PROPERTIES_LIST_MESA:
+         get_wsi_format_modifier_properties_list(physical_device, format,
+                                                 (void *)ext);
+         break;
       default:
          anv_debug_ignored_stype(ext->sType);
          break;