[PATCH 1/1] vkd3d-shader: Add documentation for the INT64 and FLOAT64 feature flags.

[Henri Verbeet]

From: Henri Verbeet

---
 include/vkd3d_shader.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/vkd3d_shader.h b/include/vkd3d_shader.h
index 2f4478a79..6fa98f3d8 100644
--- a/include/vkd3d_shader.h
+++ b/include/vkd3d_shader.h
@@ -199,7 +199,13 @@ enum vkd3d_shader_compile_option_fragment_coordinate_origin
 /** Advertises feature availability. \since 1.11 */
 enum vkd3d_shader_compile_option_feature_flags
 {
+    /** The SPIR-V target environment supports 64-bit integer types. This
+     * corresponds to the "shaderInt64" feature in the Vulkan API, and the
+     * "GL_ARB_gpu_shader_int64" extension in the OpenGL API. */
     VKD3D_SHADER_COMPILE_OPTION_FEATURE_INT64         = 0x00000001,
+    /** The SPIR-V target environment supports 64-bit floating-point types.
+     * This corresponds to the "shaderFloat64" feature in the Vulkan API, and
+     * the "GL_ARB_gpu_shader_fp64" extension in the OpenGL API. */
     VKD3D_SHADER_COMPILE_OPTION_FEATURE_FLOAT64       = 0x00000002,

VKD3D_FORCE_32_BIT_ENUM(VKD3D_SHADER_COMPILE_OPTION_FEATURE_FLAGS),