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glfw: add glfw.vulkanSupported

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2021-10-16 17:34:16 -07:00 • committed by Stephen Gutekanst
parent ad7d6b405d
commit fa25ebf037
1 changed files with 30 additions and 20 deletions
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50
glfw/src/vulkan.zig
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@ -6,26 +6,28 @@ const getError = @import("errors.zig").getError;
// TODO(vulkan):
// /// Returns whether the Vulkan loader and an ICD have been found.
// ///
// /// This function returns whether the Vulkan loader and any minimally functional ICD have been
// /// found.
// ///
// /// The availability of a Vulkan loader and even an ICD does not by itself guarantee that surface
// /// creation or even instance creation is possible. For example, on Fermi systems Nvidia will
// /// install an ICD that provides no actual Vulkan support. Call glfw.getRequiredInstanceExtensions
// /// to check whether the extensions necessary for Vulkan surface creation are available and
// /// glfw.getPhysicalDevicePresentationSupport to check whether a queue family of a physical device
// /// supports image presentation.
// ///
// /// @return `GLFW_TRUE` if Vulkan is minimally available, or `GLFW_FALSE` otherwise.
// ///
// /// Possible errors include glfw.Error.NotInitialized.
// ///
// /// @thread_safety This function may be called from any thread.
// ///
// /// see also: vulkan_support
// GLFWAPI int glfwVulkanSupported(void);
/// Returns whether the Vulkan loader and an ICD have been found.
///
/// This function returns whether the Vulkan loader and any minimally functional ICD have been
/// found.
///
/// The availability of a Vulkan loader and even an ICD does not by itself guarantee that surface
/// creation or even instance creation is possible. For example, on Fermi systems Nvidia will
/// install an ICD that provides no actual Vulkan support. Call glfw.getRequiredInstanceExtensions
/// to check whether the extensions necessary for Vulkan surface creation are available and
/// glfw.getPhysicalDevicePresentationSupport to check whether a queue family of a physical device
/// supports image presentation.
///
/// @return `true` if Vulkan is minimally available, or `false` otherwise.
///
/// Possible errors include glfw.Error.NotInitialized.
///
/// @thread_safety This function may be called from any thread.
pub inline fn vulkanSupported() Error!bool {
const supported = c.glfwVulkanSupported();
try getError();
return supported == c.GLFW_TRUE;
}
// /// Returns the Vulkan instance extensions required by GLFW.
// ///
@ -181,6 +183,14 @@ pub inline fn getInstanceProcAddress(vk_instance: ?*opaque {}, proc_name: [*c]co
// /// see also: vulkan_surface, glfw.getRequiredInstanceExtensions
// GLFWAPI VkResult glfwCreateWindowSurface(VkInstance instance, GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
test "vulkanSupported" {
const glfw = @import("main.zig");
try glfw.init();
defer glfw.terminate();
_ = try glfw.vulkanSupported();
}
test "getInstanceProcAddress" {
const glfw = @import("main.zig");
try glfw.init();