microsoft/compiler: Add dedicated spirv_to_dxil libraries

Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8043>

8 files changed, 234 insertions, 1 deletions

diff --git a/meson.build b/meson.build
index a3ea925ddd5..a82a54e4a96 100644
--- a/meson.build
+++ b/meson.build
@@ -312,6 +312,8 @@ dep_clang = dependency(
 with_microsoft_clc = dep_clang.found()
 with_clc = dep_clang.found()
 
+with_spirv_to_dxil = get_option('spirv-to-dxil')
+
 if host_machine.system() == 'darwin'
   with_dri_platform = 'apple'
   pre_args += '-DBUILDING_MESA'
diff --git a/meson_options.txt b/meson_options.txt
index 6810602ead9..22a0ed9c2b1 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -290,6 +290,12 @@ option(
   description : 'Build support for the Microsoft CLC to DXIL compiler'
 )
 option(
+  'spirv-to-dxil',
+  type : 'boolean',
+  value : false,
+  description : 'Build support for the SPIR-V to DXIL library'
+)
+option(
   'glvnd-vendor-name',
   type : 'string',
   value : 'mesa',
diff --git a/src/meson.build b/src/meson.build
index 8547d16dac5..38101edace6 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -92,7 +92,7 @@ endif
 if with_any_intel
   subdir('intel')
 endif
-if with_microsoft_clc or with_gallium_d3d12
+if with_microsoft_clc or with_gallium_d3d12 or with_spirv_to_dxil
   subdir('microsoft')
 endif
 subdir('mesa')
diff --git a/src/microsoft/meson.build b/src/microsoft/meson.build
index 05d86832a13..a27c343ab54 100644
--- a/src/microsoft/meson.build
+++ b/src/microsoft/meson.build
@@ -24,3 +24,6 @@ if with_microsoft_clc
   subdir('clc')
 endif
 subdir('resource_state_manager')
+if with_spirv_to_dxil
+  subdir('spirv_to_dxil')
+endif
diff --git a/src/microsoft/spirv_to_dxil/meson.build b/src/microsoft/spirv_to_dxil/meson.build
new file mode 100644
index 00000000000..deafe91b1d3
--- /dev/null
+++ b/src/microsoft/spirv_to_dxil/meson.build
@@ -0,0 +1,31 @@
+# Copyright © Microsoft Corporation
+
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice (including the next
+# paragraph) shall be included in all copies or substantial portions of the
+# Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+libspirv_to_dxil = both_libraries(
+  'spirv_to_dxil',
+  files(
+    'spirv_to_dxil.c',
+    'spirv_to_dxil.h',
+  ),
+  vs_module_defs : 'spirv_to_dxil.def',
+  dependencies : [idep_nir, idep_libdxil_compiler],
+  include_directories : [inc_include, inc_src, inc_compiler, inc_gallium],
+)
diff --git a/src/microsoft/spirv_to_dxil/spirv_to_dxil.c b/src/microsoft/spirv_to_dxil/spirv_to_dxil.c
new file mode 100644
index 00000000000..79ea74730a1
--- /dev/null
+++ b/src/microsoft/spirv_to_dxil/spirv_to_dxil.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright © Microsoft Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "spirv_to_dxil.h"
+#include "nir_to_dxil.h"
+#include "shader_enums.h"
+#include "spirv/nir_spirv.h"
+#include "util/blob.h"
+
+bool
+spirv_to_dxil(const uint32_t *words, size_t word_count,
+              struct dxil_spirv_specialization *specializations,
+              unsigned int num_specializations, dxil_spirv_shader_stage stage,
+              const char *entry_point_name, void **buffer, size_t *size)
+{
+   struct spirv_to_nir_options spirv_opts = {0};
+   if (stage == MESA_SHADER_KERNEL) {
+      spirv_opts.environment = NIR_SPIRV_OPENCL;
+      spirv_opts.caps.address = true;
+      spirv_opts.caps.float64 = true;
+      spirv_opts.caps.int8 = true;
+      spirv_opts.caps.int16 = true;
+      spirv_opts.caps.int64 = true;
+      spirv_opts.caps.kernel = true;
+   } else {
+      spirv_opts.environment = NIR_SPIRV_VULKAN;
+   }
+
+   glsl_type_singleton_init_or_ref();
+
+   nir_shader *nir = spirv_to_nir(
+      words, word_count, (struct nir_spirv_specialization *)specializations,
+      num_specializations, (gl_shader_stage)stage, entry_point_name,
+      &spirv_opts, dxil_get_nir_compiler_options());
+   if (!nir) {
+      glsl_type_singleton_decref();
+      return false;
+   }
+
+   nir_validate_shader(nir,
+                       "Validate before feeding NIR to the DXIL compiler");
+
+   NIR_PASS_V(nir, nir_lower_returns);
+   NIR_PASS_V(nir, nir_inline_functions);
+
+   struct nir_to_dxil_options opts = {0};
+
+   struct blob dxil_blob;
+   if (!nir_to_dxil(nir, &opts, &dxil_blob)) {
+      if (dxil_blob.allocated)
+         blob_finish(&dxil_blob);
+      glsl_type_singleton_decref();
+      return false;
+   }
+
+   blob_finish_get_buffer(&dxil_blob, buffer, size);
+
+   glsl_type_singleton_decref();
+   return true;
+}
+
+void
+spirv_to_dxil_free(void* buffer)
+{
+   free(buffer);
+}
diff --git a/src/microsoft/spirv_to_dxil/spirv_to_dxil.def b/src/microsoft/spirv_to_dxil/spirv_to_dxil.def
new file mode 100644
index 00000000000..5243f56e6c7
--- /dev/null
+++ b/src/microsoft/spirv_to_dxil/spirv_to_dxil.def
@@ -0,0 +1,3 @@
+EXPORTS
+    spirv_to_dxil
+    spirv_to_dxil_free
diff --git a/src/microsoft/spirv_to_dxil/spirv_to_dxil.h b/src/microsoft/spirv_to_dxil/spirv_to_dxil.h
new file mode 100644
index 00000000000..655d6389bac
--- /dev/null
+++ b/src/microsoft/spirv_to_dxil/spirv_to_dxil.h
@@ -0,0 +1,102 @@
+/*
+ * Copyright © Microsoft Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef SPIRV_TO_DXIL_H
+#define SPIRV_TO_DXIL_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// NB: I've copy and pasted some types into this header so we don't have to
+// include other headers. This will surely break if any of these types change.
+
+// Copy of gl_shader_stage
+typedef enum {
+   DXIL_SPIRV_SHADER_NONE = -1,
+   DXIL_SPIRV_SHADER_VERTEX = 0,
+   DXIL_SPIRV_SHADER_TESS_CTRL = 1,
+   DXIL_SPIRV_SHADER_TESS_EVAL = 2,
+   DXIL_SPIRV_SHADER_GEOMETRY = 3,
+   DXIL_SPIRV_SHADER_FRAGMENT = 4,
+   DXIL_SPIRV_SHADER_COMPUTE = 5,
+   DXIL_SPIRV_SHADER_KERNEL = 6,
+} dxil_spirv_shader_stage;
+
+// Copy of nir_spirv_const_value
+typedef union {
+   bool b;
+   float f32;
+   double f64;
+   int8_t i8;
+   uint8_t u8;
+   int16_t i16;
+   uint16_t u16;
+   int32_t i32;
+   uint32_t u32;
+   int64_t i64;
+   uint64_t u64;
+} dxil_spirv_const_value;
+
+// Copy of nir_spirv_specialization
+struct dxil_spirv_specialization {
+   uint32_t id;
+   dxil_spirv_const_value value;
+   bool defined_on_module;
+};
+
+/**
+ * Compile a SPIR-V module into DXIL.
+ * \param  words  SPIR-V module to compile
+ * \param  word_count  number of words in the SPIR-V module
+ * \param  specializations  specialization constants to compile with the shader
+ * \param  num_specializations  number of specialization constants
+ * \param  buffer  will contain the DXIL bytes on success. Needs to be freed()
+ * \param  size  length of returned buffer
+ * \return  true if compilation succeeded
+ */
+bool
+spirv_to_dxil(const uint32_t* words,
+              size_t word_count,
+              struct dxil_spirv_specialization* specializations,
+              unsigned int num_specializations,
+              dxil_spirv_shader_stage stage,
+              const char* entry_point_name,
+              void** buffer,
+              size_t* size);
+
+/**
+ * Free the buffer allocated by spirv_to_dxil.
+ */
+void
+spirv_to_dxil_free(void* buffer);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif