render/vulkan: detect which _UNORM formats support _SRGB views

include/render/vulkan.h

@@ -101,6 +101,7 @@ const struct wlr_vk_format *vulkan_get_format_from_drm(uint32_t drm_format);
 struct wlr_vk_format_modifier_props {
 	VkDrmFormatModifierPropertiesEXT props;
 	VkExtent2D max_extent;
+	bool has_mutable_srgb;
 };
 
 struct wlr_vk_format_props {
@@ -109,6 +110,7 @@ struct wlr_vk_format_props {
 	struct {
 		VkExtent2D max_extent;
 		VkFormatFeatureFlags features;
+		bool has_mutable_srgb;
 	} shm;
 
 	struct {

render/vulkan/pixel_format.c

@@ -258,16 +258,28 @@ static const VkFormatFeatureFlags ycbcr_tex_features =
 	VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_LINEAR_FILTER_BIT |
 	VK_FORMAT_FEATURE_MIDPOINT_CHROMA_SAMPLES_BIT;
 
+// vk_format_variant should be set to 0=VK_FORMAT_UNDEFINED when not used
 static bool query_modifier_usage_support(struct wlr_vk_device *dev, VkFormat vk_format,
-		VkImageUsageFlags usage, const VkDrmFormatModifierPropertiesEXT *m,
+		VkFormat vk_format_variant, VkImageUsageFlags usage,
+		const VkDrmFormatModifierPropertiesEXT *m,
 		struct wlr_vk_format_modifier_props *out, const char **errmsg) {
 	VkResult res;
 	*errmsg = NULL;
 
+	VkFormat view_formats[2] = {
+		vk_format,
+		vk_format_variant,
+	};
+	VkImageFormatListCreateInfoKHR listi = {
+		.sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_LIST_CREATE_INFO_KHR,
+		.pViewFormats = view_formats,
+		.viewFormatCount = vk_format_variant ? 2 : 1,
+	};
 	VkPhysicalDeviceImageDrmFormatModifierInfoEXT modi = {
 		.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_DRM_FORMAT_MODIFIER_INFO_EXT,
 		.drmFormatModifier = m->drmFormatModifier,
 		.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
+		.pNext = &listi,
 	};
 	VkPhysicalDeviceExternalImageFormatInfo efmti = {
 		.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_IMAGE_FORMAT_INFO,
@@ -279,6 +291,7 @@ static bool query_modifier_usage_support(struct wlr_vk_device *dev, VkFormat vk_
 		.type = VK_IMAGE_TYPE_2D,
 		.format = vk_format,
 		.usage = usage,
+		.flags = vk_format_variant ? VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT : 0,
 		.tiling = VK_IMAGE_TILING_DRM_FORMAT_MODIFIER_EXT,
 		.pNext = &efmti,
 	};
@@ -316,18 +329,29 @@ static bool query_modifier_usage_support(struct wlr_vk_device *dev, VkFormat vk_
 }
 
 static bool query_shm_support(struct wlr_vk_device *dev, VkFormat vk_format,
-		VkImageFormatProperties *out, const char **errmsg) {
+		VkFormat vk_format_variant, VkImageFormatProperties *out,
+		const char **errmsg) {
 	VkResult res;
 	*errmsg = NULL;
 
+	VkFormat view_formats[2] = {
+		vk_format,
+		vk_format_variant,
+	};
+	VkImageFormatListCreateInfoKHR listi = {
+		.sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_LIST_CREATE_INFO_KHR,
+		.pViewFormats = view_formats,
+		.viewFormatCount = vk_format_variant ? 2 : 1,
+		.pNext = NULL,
+	};
 	VkPhysicalDeviceImageFormatInfo2 fmti = {
 		.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_FORMAT_INFO_2,
 		.type = VK_IMAGE_TYPE_2D,
 		.format = vk_format,
 		.tiling = VK_IMAGE_TILING_OPTIMAL,
 		.usage = vulkan_shm_tex_usage,
-		.flags = 0,
+		.flags = vk_format_variant ? VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT : 0,
-		.pNext = NULL,
+		.pNext = &listi,
 	};
 	VkImageFormatProperties2 ifmtp = {
 		.sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2,
@@ -390,7 +414,18 @@ static bool query_modifier_support(struct wlr_vk_device *dev,
 		if ((m.drmFormatModifierTilingFeatures & render_features) == render_features &&
 				!props->format.is_ycbcr) {
 			struct wlr_vk_format_modifier_props p = {0};
-			if (query_modifier_usage_support(dev, props->format.vk, vulkan_render_usage, &m, &p, &errmsg)) {
+			bool supported = false;
+			if (query_modifier_usage_support(dev, props->format.vk,
+					props->format.vk_srgb, vulkan_render_usage, &m, &p, &errmsg)) {
+				supported = true;
+				p.has_mutable_srgb = props->format.vk_srgb != 0;
+			}
+			if (!supported && props->format.vk_srgb) {
+				supported = query_modifier_usage_support(dev, props->format.vk,
+					0, vulkan_render_usage, &m, &p, &errmsg);
+			}
+
+			if (supported) {
 				props->dmabuf.render_mods[props->dmabuf.render_mod_count++] = p;
 				wlr_drm_format_set_add(&dev->dmabuf_render_formats,
 					props->format.drm, m.drmFormatModifier);
@@ -413,7 +448,18 @@ static bool query_modifier_support(struct wlr_vk_device *dev,
 		}
 		if ((m.drmFormatModifierTilingFeatures & features) == features) {
 			struct wlr_vk_format_modifier_props p = {0};
-			if (query_modifier_usage_support(dev, props->format.vk, vulkan_dma_tex_usage, &m, &p, &errmsg)) {
+			bool supported = false;
+			if (query_modifier_usage_support(dev, props->format.vk,
+					props->format.vk_srgb, vulkan_dma_tex_usage, &m, &p, &errmsg)) {
+				supported = true;
+				p.has_mutable_srgb = props->format.vk_srgb != 0;
+			}
+			if (!supported && props->format.vk_srgb) {
+				supported = query_modifier_usage_support(dev, props->format.vk,
+					0, vulkan_dma_tex_usage, &m, &p, &errmsg);
+			}
+
+			if (supported) {
 				props->dmabuf.texture_mods[props->dmabuf.texture_mod_count++] = p;
 				wlr_drm_format_set_add(&dev->dmabuf_texture_formats,
 					props->format.drm, m.drmFormatModifier);
@@ -473,10 +519,20 @@ void vulkan_format_props_query(struct wlr_vk_device *dev,
 	if ((fmtp.formatProperties.optimalTilingFeatures & shm_tex_features) == shm_tex_features &&
 			!format->is_ycbcr && format_info != NULL) {
 		VkImageFormatProperties ifmtp;
-		if (query_shm_support(dev, format->vk, &ifmtp, &errmsg)) {
+		bool supported = false, has_mutable_srgb = false;
+		if (query_shm_support(dev, format->vk, format->vk_srgb, &ifmtp, &errmsg)) {
+			supported = true;
+			has_mutable_srgb = format->vk_srgb != 0;
+		}
+		if (!supported && format->vk_srgb) {
+			supported = query_shm_support(dev, format->vk, 0, &ifmtp, &errmsg);
+		}
+
+		if (supported) {
 			props.shm.max_extent.width = ifmtp.maxExtent.width;
 			props.shm.max_extent.height = ifmtp.maxExtent.height;
 			props.shm.features = fmtp.formatProperties.optimalTilingFeatures;
+			props.shm.has_mutable_srgb = has_mutable_srgb;
 
 			dev->shm_formats[dev->shm_format_count] = format->drm;
 			++dev->shm_format_count;

render/vulkan/vulkan.c

@@ -455,8 +455,8 @@ struct wlr_vk_device *vulkan_device_create(struct wlr_vk_instance *ini,
 	dev->drm_fd = -1;
 
 	// For dmabuf import we require at least the external_memory_fd,
-	// external_memory_dma_buf, queue_family_foreign and
+	// external_memory_dma_buf, queue_family_foreign,
-	// image_drm_format_modifier extensions.
+	// image_drm_format_modifier, and image_format_list extensions.
 	// The size is set to a large number to allow for other conditional
 	// extensions before the device is created
 	const char *extensions[32] = {0};