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vulkan/xcb: getProcAddress winsys functions

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There's no guarantee that they will always be exposed by the vulkan loader.
This commit is contained in:
Matthew Waters 2016-04-10 17:43:39 +10:00
parent b76fcfd3f7
commit e46bd98fe6
2 changed files with 29 additions and 4 deletions
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30
ext/vulkan/xcb/vkwindow_xcb.c
View file

@ -206,6 +206,7 @@ gst_vulkan_window_xcb_create_window (GstVulkanWindowXCB * window_xcb)
static VkSurfaceKHR
gst_vulkan_window_xcb_get_surface (GstVulkanWindow * window, GError ** error)
{
GstVulkanWindowXCB *window_xcb = GST_VULKAN_WINDOW_XCB (window);
VkXcbSurfaceCreateInfoKHR info = { 0, };
VkSurfaceKHR ret;
VkResult err;
@ -216,9 +217,19 @@ gst_vulkan_window_xcb_get_surface (GstVulkanWindow * window, GError ** error)
info.connection = GST_VULKAN_DISPLAY_XCB_CONNECTION (window->display);
info.window = GST_VULKAN_WINDOW_XCB (window)->win_id;
if (!window_xcb->CreateXcbSurface)
window_xcb->CreateXcbSurface =
gst_vulkan_instance_get_proc_address (window->display->instance,
"vkCreateXcbSurfaceKHR");
if (!window_xcb->CreateXcbSurface) {
g_set_error_literal (error, GST_VULKAN_ERROR, VK_ERROR_FEATURE_NOT_PRESENT,
"Could not retrieve \"vkCreateXcbSurfaceKHR\" function pointer");
return NULL;
}
err =
vkCreateXcbSurfaceKHR (window->display->instance->instance, &info, NULL,
&ret);
window_xcb->CreateXcbSurface (window->display->instance->instance, &info,
NULL, &ret);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateXcbSurfaceKHR") < 0)
return NULL;
@ -229,14 +240,25 @@ static gboolean
gst_vulkan_window_xcb_get_presentation_support (GstVulkanWindow * window,
GstVulkanDevice * device, guint32 queue_family_idx)
{
GstVulkanWindowXCB *window_xcb = GST_VULKAN_WINDOW_XCB (window);
VkPhysicalDevice gpu;
xcb_screen_t *screen;
screen = GST_VULKAN_DISPLAY_XCB_SCREEN (window->display);
if (!window_xcb->GetPhysicalDeviceXcbPresentationSupport)
window_xcb->GetPhysicalDeviceXcbPresentationSupport =
gst_vulkan_instance_get_proc_address (window->display->instance,
"vkGetPhysicalDeviceXcbPresentationSupportKHR");
if (!window_xcb->GetPhysicalDeviceXcbPresentationSupport) {
GST_WARNING_OBJECT (window, "Could not retrieve "
"\"vkGetPhysicalDeviceXcbPresentationSupportKHR\" " "function pointer");
return FALSE;
}
gpu = gst_vulkan_device_get_physical_device (device);
if (vkGetPhysicalDeviceXcbPresentationSupportKHR (gpu, queue_family_idx,
GST_VULKAN_DISPLAY_XCB_CONNECTION (window->display),
if (window_xcb->GetPhysicalDeviceXcbPresentationSupport (gpu,
queue_family_idx, GST_VULKAN_DISPLAY_XCB_CONNECTION (window->display),
screen->root_visual))
return TRUE;
return FALSE;

3
ext/vulkan/xcb/vkwindow_xcb.h
View file

@ -53,6 +53,9 @@ struct _GstVulkanWindowXCB
gint visible :1;
PFN_vkCreateXcbSurfaceKHR CreateXcbSurface;
PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR GetPhysicalDeviceXcbPresentationSupport;
/*< private >*/
GstVulkanWindowXCBPrivate *priv;