[tests] Added simple app that compiles HLSL shaders

tests/dxbc/meson.build

@@ -1,4 +1,5 @@
 test_dxbc_deps = [ dxbc_dep, dxvk_dep ]
 
 executable('dxbc-compiler', files('test_dxbc_compiler.cpp'), dependencies : test_dxbc_deps, install : true)
-executable('dxbc-disasm',   files('test_dxbc_disasm.cpp'),   dependencies : [ test_dxbc_deps, lib_d3dcompiler_47 ], install : true)
+executable('dxbc-disasm',   files('test_dxbc_disasm.cpp'),   dependencies : [ test_dxbc_deps, lib_d3dcompiler_47 ], install : true)
+executable('hlsl-compiler', files('test_hlsl_compiler.cpp'), dependencies : [ test_dxbc_deps, lib_d3dcompiler_47 ], install : true)

tests/dxbc/test_hlsl_compiler.cpp

@@ -0,0 +1,61 @@
+#include <cstring>
+#include <fstream>
+
+#include <d3dcompiler.h>
+
+#include <shellapi.h>
+#include <windows.h>
+#include <windowsx.h>
+
+#include "../test_utils.h"
+
+using namespace dxvk;
+
+int WINAPI WinMain(HINSTANCE hInstance,
+                   HINSTANCE hPrevInstance,
+                   LPSTR lpCmdLine,
+                   int nCmdShow) {
+  int     argc = 0;
+  LPWSTR* argv = CommandLineToArgvW(
+    GetCommandLineW(), &argc);  
+  
+  if (argc < 5) {
+    std::cerr << "Usage: hlsl-compiler target entrypoint input.hlsl output.dxbc" << std::endl;
+    return 1;
+  }
+  
+  const LPWSTR target       = argv[1];
+  const LPWSTR entryPoint   = argv[2];
+  const LPWSTR inputFile    = argv[3];
+  const LPWSTR outputFile   = argv[4];
+  
+  std::ifstream ifile(str::fromws(inputFile), std::ios::binary);
+  ifile.ignore(std::numeric_limits<std::streamsize>::max());
+  std::streamsize length = ifile.gcount();
+  ifile.clear();
+  
+  ifile.seekg(0, std::ios_base::beg);
+  std::vector<char> hlslCode(length);
+  ifile.read(hlslCode.data(), length);
+  
+  Com<ID3DBlob> binary;
+  Com<ID3DBlob> errors;
+  
+  HRESULT hr = D3DCompile(
+    hlslCode.data(),
+    hlslCode.size(),
+    "Shader", nullptr, nullptr,
+    str::fromws(entryPoint).c_str(),
+    str::fromws(target).c_str(),
+    0, 0, &binary, &errors);
+  
+  if (FAILED(hr)) {
+    if (errors != nullptr)
+      std::cerr << reinterpret_cast<const char*>(errors->GetBufferPointer()) << std::endl;
+    return 1;
+  }
+  
+  std::ofstream outputStream(str::fromws(outputFile), std::ios::binary | std::ios::trunc);
+  outputStream.write(reinterpret_cast<const char*>(binary->GetBufferPointer()), binary->GetBufferSize());
+  return 0;
+}