[PATCH v2 3/3] vkd3d-shader: Introduce a wave ops feature flag.

[Conor McCarthy]

From: Conor McCarthy

---
 include/vkd3d_shader.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/vkd3d_shader.h b/include/vkd3d_shader.h
index f3a57889e..5ad086978 100644
--- a/include/vkd3d_shader.h
+++ b/include/vkd3d_shader.h
@@ -215,6 +215,17 @@ enum vkd3d_shader_compile_option_feature_flags
      * 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,
+    /** The SPIR-V target environment supports wave operations.
+     * This corresponds to the following minimum requirements in
+     * VkPhysicalDeviceSubgroupProperties:
+     * subgroupSize >= 4
+     * supportedOperations has BASIC, VOTE, ARITHMETIC, BALLOT, SHUFFLE and
+     * QUAD bits set.
+     * supportedStages include COMPUTE and FRAGMENT.
+     * Environments VKD3D_SHADER_SPIRV_ENVIRONMENT_OPENGL_4_5 and
+     * VKD3D_SHADER_SPIRV_ENVIRONMENT_VULKAN_1_0 do not support
+     * this flag. */
+    VKD3D_SHADER_COMPILE_OPTION_FEATURE_WAVE_OPS      = 0x00000004,

VKD3D_FORCE_32_BIT_ENUM(VKD3D_SHADER_COMPILE_OPTION_FEATURE_FLAGS),
 };