[PATCH 1/7] vulkan: Add VK_EXT_display_surface_counter [v4]

[Keith Packard <keithp@keithp.com>]

This extension is required to support EXT_display_control as it offers
a way to query whether the vblank counter is supported.

v2: Thanks to kisak

    Fix spelling of VkSurfaceCapabilities2EXT in wsi_common_wayland.c,
    it was using ext instead of EXT.

    Fix spelling of VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_EXT

v3: Fix wayland WSI, regularize spelling

    Misspelled 'surface' in get_capabilities2ext
    Remove extra _ from get_capabilities_2ext in a couple of places

v4: Adopt Jason Ekstrand's coding conventions

    Declare variables at first use, eliminate extra whitespace
    between types and names. Wrap lines to 80 columns.

    Suggested-by: Jason Ekstrand <jason.ekstrand@intel.com>

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 src/vulkan/wsi/wsi_common.c         | 12 ++++++++++++
 src/vulkan/wsi/wsi_common.h         |  6 ++++++
 src/vulkan/wsi/wsi_common_display.c | 27 +++++++++++++++++++++++++++
 src/vulkan/wsi/wsi_common_private.h |  3 +++
 src/vulkan/wsi/wsi_common_wayland.c | 27 +++++++++++++++++++++++++++
 src/vulkan/wsi/wsi_common_x11.c     | 27 +++++++++++++++++++++++++++
 6 files changed, 102 insertions(+)

diff --git a/src/vulkan/wsi/wsi_common.c b/src/vulkan/wsi/wsi_common.c
index 142c5d8fe58..91d0b72e1ba 100644
--- a/src/vulkan/wsi/wsi_common.c
+++ b/src/vulkan/wsi/wsi_common.c
@@ -710,6 +710,18 @@ wsi_common_get_surface_capabilities2(struct wsi_device *wsi_device,
                                    pSurfaceCapabilities);
 }
 
+VkResult
+wsi_common_get_surface_capabilities2ext(
+   struct wsi_device *wsi_device,
+   VkSurfaceKHR _surface,
+   VkSurfaceCapabilities2EXT *pSurfaceCapabilities)
+{
+   ICD_FROM_HANDLE(VkIcdSurfaceBase, surface, _surface);
+   struct wsi_interface *iface = wsi_device->wsi[surface->platform];
+
+   return iface->get_capabilities2ext(surface, pSurfaceCapabilities);
+}
+
 VkResult
 wsi_common_get_surface_formats(struct wsi_device *wsi_device,
                                VkSurfaceKHR _surface,
diff --git a/src/vulkan/wsi/wsi_common.h b/src/vulkan/wsi/wsi_common.h
index 61b1de59d7f..054aad23c1c 100644
--- a/src/vulkan/wsi/wsi_common.h
+++ b/src/vulkan/wsi/wsi_common.h
@@ -178,6 +178,12 @@ wsi_common_get_surface_present_modes(struct wsi_device *wsi_device,
                                      uint32_t *pPresentModeCount,
                                      VkPresentModeKHR *pPresentModes);
 
+VkResult
+wsi_common_get_surface_capabilities2ext(
+   struct wsi_device *wsi_device,
+   VkSurfaceKHR surface,
+   VkSurfaceCapabilities2EXT *pSurfaceCapabilities);
+
 VkResult
 wsi_common_get_images(VkSwapchainKHR _swapchain,
                       uint32_t *pSwapchainImageCount,
diff --git a/src/vulkan/wsi/wsi_common_display.c b/src/vulkan/wsi/wsi_common_display.c
index e140e71c518..504f7741d73 100644
--- a/src/vulkan/wsi/wsi_common_display.c
+++ b/src/vulkan/wsi/wsi_common_display.c
@@ -641,6 +641,32 @@ wsi_display_surface_get_capabilities2(VkIcdSurfaceBase *icd_surface,
                                                &caps->surfaceCapabilities);
 }
 
+static VkResult
+wsi_display_surface_get_capabilities2ext(VkIcdSurfaceBase *icd_surface,
+                                          VkSurfaceCapabilities2EXT *caps)
+{
+   VkSurfaceCapabilitiesKHR     khr_caps;
+   VkResult                     ret;
+
+   assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_EXT);
+   ret = wsi_display_surface_get_capabilities(icd_surface, &khr_caps);
+   if (ret)
+      return ret;
+
+   caps->minImageCount = khr_caps.minImageCount;
+   caps->maxImageCount = khr_caps.maxImageCount;
+   caps->currentExtent = khr_caps.currentExtent;
+   caps->minImageExtent = khr_caps.minImageExtent;
+   caps->maxImageExtent = khr_caps.maxImageExtent;
+   caps->maxImageArrayLayers = khr_caps.maxImageArrayLayers;
+   caps->supportedTransforms = khr_caps.supportedTransforms;
+   caps->currentTransform = khr_caps.currentTransform;
+   caps->supportedCompositeAlpha = khr_caps.supportedCompositeAlpha;
+   caps->supportedUsageFlags = khr_caps.supportedUsageFlags;
+   caps->supportedSurfaceCounters = 0;
+   return ret;
+}
+
 static const struct {
    VkFormat     format;
    uint32_t     drm_format;
@@ -1393,6 +1419,7 @@ wsi_display_init_wsi(struct wsi_device *wsi_device,
    wsi->base.get_support = wsi_display_surface_get_support;
    wsi->base.get_capabilities = wsi_display_surface_get_capabilities;
    wsi->base.get_capabilities2 = wsi_display_surface_get_capabilities2;
+   wsi->base.get_capabilities2ext = wsi_display_surface_get_capabilities2ext;
    wsi->base.get_formats = wsi_display_surface_get_formats;
    wsi->base.get_formats2 = wsi_display_surface_get_formats2;
    wsi->base.get_present_modes = wsi_display_surface_get_present_modes;
diff --git a/src/vulkan/wsi/wsi_common_private.h b/src/vulkan/wsi/wsi_common_private.h
index 3d502b9fc9d..b97d2d8ba06 100644
--- a/src/vulkan/wsi/wsi_common_private.h
+++ b/src/vulkan/wsi/wsi_common_private.h
@@ -109,6 +109,9 @@ struct wsi_interface {
    VkResult (*get_capabilities2)(VkIcdSurfaceBase *surface,
                                  const void *info_next,
                                  VkSurfaceCapabilities2KHR* pSurfaceCapabilities);
+   VkResult (*get_capabilities2ext)(VkIcdSurfaceBase *surface,
+                                    VkSurfaceCapabilities2EXT*
+                                    pSurfaceCapabilities);
    VkResult (*get_formats)(VkIcdSurfaceBase *surface,
                            struct wsi_device *wsi_device,
                            uint32_t* pSurfaceFormatCount,
diff --git a/src/vulkan/wsi/wsi_common_wayland.c b/src/vulkan/wsi/wsi_common_wayland.c
index ec38a4e578f..908d8676e2a 100644
--- a/src/vulkan/wsi/wsi_common_wayland.c
+++ b/src/vulkan/wsi/wsi_common_wayland.c
@@ -524,6 +524,32 @@ wsi_wl_surface_get_capabilities2(VkIcdSurfaceBase *surface,
    return wsi_wl_surface_get_capabilities(surface, &caps->surfaceCapabilities);
 }
 
+static VkResult
+wsi_wl_surface_get_capabilities2ext(VkIcdSurfaceBase *surface,
+                                    VkSurfaceCapabilities2EXT* caps)
+{
+   VkSurfaceCapabilitiesKHR     khr_caps;
+   VkResult                     ret;
+
+   assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_EXT);
+   ret = wsi_wl_surface_get_capabilities(surface, &khr_caps);
+   if (ret)
+      return ret;
+
+   caps->minImageCount = khr_caps.minImageCount;
+   caps->maxImageCount = khr_caps.maxImageCount;
+   caps->currentExtent = khr_caps.currentExtent;
+   caps->minImageExtent = khr_caps.minImageExtent;
+   caps->maxImageExtent = khr_caps.maxImageExtent;
+   caps->maxImageArrayLayers = khr_caps.maxImageArrayLayers;
+   caps->supportedTransforms = khr_caps.supportedTransforms;
+   caps->currentTransform = khr_caps.currentTransform;
+   caps->supportedCompositeAlpha = khr_caps.supportedCompositeAlpha;
+   caps->supportedUsageFlags = khr_caps.supportedUsageFlags;
+   caps->supportedSurfaceCounters = 0;
+   return ret;
+}
+
 static VkResult
 wsi_wl_surface_get_formats(VkIcdSurfaceBase *icd_surface,
 			   struct wsi_device *wsi_device,
@@ -1012,6 +1038,7 @@ wsi_wl_init_wsi(struct wsi_device *wsi_device,
    wsi->base.get_support = wsi_wl_surface_get_support;
    wsi->base.get_capabilities = wsi_wl_surface_get_capabilities;
    wsi->base.get_capabilities2 = wsi_wl_surface_get_capabilities2;
+   wsi->base.get_capabilities2ext = wsi_wl_surface_get_capabilities2ext;
    wsi->base.get_formats = wsi_wl_surface_get_formats;
    wsi->base.get_formats2 = wsi_wl_surface_get_formats2;
    wsi->base.get_present_modes = wsi_wl_surface_get_present_modes;
diff --git a/src/vulkan/wsi/wsi_common_x11.c b/src/vulkan/wsi/wsi_common_x11.c
index 20d7cf5a2c8..129e30913c3 100644
--- a/src/vulkan/wsi/wsi_common_x11.c
+++ b/src/vulkan/wsi/wsi_common_x11.c
@@ -547,6 +547,32 @@ x11_surface_get_capabilities2(VkIcdSurfaceBase *icd_surface,
    return x11_surface_get_capabilities(icd_surface, &caps->surfaceCapabilities);
 }
 
+static VkResult
+x11_surface_get_capabilities2ext(VkIcdSurfaceBase *icd_surface,
+                                 VkSurfaceCapabilities2EXT *caps)
+{
+   VkSurfaceCapabilitiesKHR     khr_caps;
+   VkResult                     ret;
+
+   assert(caps->sType == VK_STRUCTURE_TYPE_SURFACE_CAPABILITIES_2_EXT);
+   ret = x11_surface_get_capabilities(icd_surface, &khr_caps);
+   if (ret)
+      return ret;
+
+   caps->minImageCount = khr_caps.minImageCount;
+   caps->maxImageCount = khr_caps.maxImageCount;
+   caps->currentExtent = khr_caps.currentExtent;
+   caps->minImageExtent = khr_caps.minImageExtent;
+   caps->maxImageExtent = khr_caps.maxImageExtent;
+   caps->maxImageArrayLayers = khr_caps.maxImageArrayLayers;
+   caps->supportedTransforms = khr_caps.supportedTransforms;
+   caps->currentTransform = khr_caps.currentTransform;
+   caps->supportedCompositeAlpha = khr_caps.supportedCompositeAlpha;
+   caps->supportedUsageFlags = khr_caps.supportedUsageFlags;
+   caps->supportedSurfaceCounters = 0;
+   return ret;
+}
+
 static VkResult
 x11_surface_get_formats(VkIcdSurfaceBase *surface,
                         struct wsi_device *wsi_device,
@@ -1471,6 +1497,7 @@ wsi_x11_init_wsi(struct wsi_device *wsi_device,
    wsi->base.get_support = x11_surface_get_support;
    wsi->base.get_capabilities = x11_surface_get_capabilities;
    wsi->base.get_capabilities2 = x11_surface_get_capabilities2;
+   wsi->base.get_capabilities2ext = x11_surface_get_capabilities2ext;
    wsi->base.get_formats = x11_surface_get_formats;
    wsi->base.get_formats2 = x11_surface_get_formats2;
    wsi->base.get_present_modes = x11_surface_get_present_modes;
-- 
2.17.1

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