[dxvk] Added meta shaders for image/buffer clear operations

The D3D11 ClearUnorderedAccessView* and ClearView functions
will have to be emulated using compute shaders rather than
clear operations, since Vulkan clear operations do not take
image views and their format into account.

src/dxvk/shaders/dxvk_clear_buffer_f.comp

@@ -0,0 +1,23 @@
+#version 450
+
+layout(
+  local_size_x = 64,
+  local_size_y = 1,
+  local_size_z = 1) in;
+
+layout(binding = 0)
+writeonly uniform imageBuffer dst;
+
+layout(push_constant)
+uniform u_info_t {
+  vec4 clear_value;
+  ivec4 dst_offset;
+  ivec4 dst_size;
+} u_info;
+
+void main() {
+  ivec3 thread_id = ivec3(gl_GlobalInvocationID.x);
+  
+  if (thread_id.x < u_info.dst_size.x)
+    imageStore(dst, thread_id.x + u_info.dst_offset.x, u_info.clear_value);
+}

src/dxvk/shaders/dxvk_clear_buffer_u.comp

@@ -0,0 +1,23 @@
+#version 450
+
+layout(
+  local_size_x = 64,
+  local_size_y = 1,
+  local_size_z = 1) in;
+
+layout(binding = 0)
+writeonly uniform uimageBuffer dst;
+
+layout(push_constant)
+uniform u_info_t {
+  uvec4 clear_value;
+  ivec4 dst_offset;
+  ivec4 dst_size;
+} u_info;
+
+void main() {
+  ivec3 thread_id = ivec3(gl_GlobalInvocationID.x);
+  
+  if (thread_id.x < u_info.dst_size.x)
+    imageStore(dst, thread_id.x + u_info.dst_offset.x, u_info.clear_value);
+}

src/dxvk/shaders/dxvk_clear_image1d_f.comp

@@ -0,0 +1,23 @@
+#version 450
+
+layout(
+  local_size_x = 64,
+  local_size_y = 1,
+  local_size_z = 1) in;
+
+layout(binding = 0)
+writeonly uniform image1DArray dst;
+
+layout(push_constant)
+uniform u_info_t {
+  vec4 clear_value;
+  ivec4 dst_offset;
+  ivec4 dst_size;
+} u_info;
+
+void main() {
+  ivec3 thread_id = ivec3(gl_GlobalInvocationID.x);
+  
+  if (all(lessThan(thread_id.xy, u_info.dst_size.xy)))
+    imageStore(dst, thread_id.xy + u_info.dst_offset.xy, u_info.clear_value);
+}

src/dxvk/shaders/dxvk_clear_image1d_u.comp

@@ -0,0 +1,23 @@
+#version 450
+
+layout(
+  local_size_x = 64,
+  local_size_y = 1,
+  local_size_z = 1) in;
+
+layout(binding = 0)
+writeonly uniform uimage1DArray dst;
+
+layout(push_constant)
+uniform u_info_t {
+  uvec4 clear_value;
+  ivec4 dst_offset;
+  ivec4 dst_size;
+} u_info;
+
+void main() {
+  ivec3 thread_id = ivec3(gl_GlobalInvocationID.x);
+  
+  if (all(lessThan(thread_id.xy, u_info.dst_size.xy)))
+    imageStore(dst, thread_id.xy + u_info.dst_offset.xy, u_info.clear_value);
+}

src/dxvk/shaders/dxvk_clear_image2d_f.comp

@@ -0,0 +1,23 @@
+#version 450
+
+layout(
+  local_size_x = 64,
+  local_size_y = 1,
+  local_size_z = 1) in;
+
+layout(binding = 0)
+writeonly uniform image2DArray dst;
+
+layout(push_constant)
+uniform u_info_t {
+  vec4 clear_value;
+  ivec4 dst_offset;
+  ivec4 dst_size;
+} u_info;
+
+void main() {
+  ivec3 thread_id = ivec3(gl_GlobalInvocationID.x);
+  
+  if (all(lessThan(thread_id.xyz, u_info.dst_size.xyz)))
+    imageStore(dst, thread_id.xyz + u_info.dst_offset.xyz, u_info.clear_value);
+}

src/dxvk/shaders/dxvk_clear_image2d_u.comp

@@ -0,0 +1,23 @@
+#version 450
+
+layout(
+  local_size_x = 64,
+  local_size_y = 1,
+  local_size_z = 1) in;
+
+layout(binding = 0)
+writeonly uniform uimage2DArray dst;
+
+layout(push_constant)
+uniform u_info_t {
+  uvec4 clear_value;
+  ivec4 dst_offset;
+  ivec4 dst_size;
+} u_info;
+
+void main() {
+  ivec3 thread_id = ivec3(gl_GlobalInvocationID.x);
+  
+  if (all(lessThan(thread_id.xyz, u_info.dst_size.xyz)))
+    imageStore(dst, thread_id.xyz + u_info.dst_offset.xyz, u_info.clear_value);
+}

src/dxvk/shaders/dxvk_clear_image3d_f.comp

@@ -0,0 +1,23 @@
+#version 450
+
+layout(
+  local_size_x = 64,
+  local_size_y = 1,
+  local_size_z = 1) in;
+
+layout(binding = 0)
+writeonly uniform image3D dst;
+
+layout(push_constant)
+uniform u_info_t {
+  vec4 clear_value;
+  ivec4 dst_offset;
+  ivec4 dst_size;
+} u_info;
+
+void main() {
+  ivec3 thread_id = ivec3(gl_GlobalInvocationID.x);
+  
+  if (all(lessThan(thread_id.xyz, u_info.dst_size.xyz)))
+    imageStore(dst, thread_id.xyz + u_info.dst_offset.xyz, u_info.clear_value);
+}

src/dxvk/shaders/dxvk_clear_image3d_u.comp

@@ -0,0 +1,23 @@
+#version 450
+
+layout(
+  local_size_x = 64,
+  local_size_y = 1,
+  local_size_z = 1) in;
+
+layout(binding = 0)
+writeonly uniform uimage3D dst;
+
+layout(push_constant)
+uniform u_info_t {
+  uvec4 clear_value;
+  ivec4 dst_offset;
+  ivec4 dst_size;
+} u_info;
+
+void main() {
+  ivec3 thread_id = ivec3(gl_GlobalInvocationID.x);
+  
+  if (all(lessThan(thread_id.xyz, u_info.dst_size.xyz)))
+    imageStore(dst, thread_id.xyz + u_info.dst_offset.xyz, u_info.clear_value);
+}