Adding --dump_shaders=path/.

src/xenia/gpu/d3d11/d3d11_shader.cc

@@ -9,6 +9,7 @@
 
 #include <xenia/gpu/d3d11/d3d11_shader.h>
 
+#include <xenia/gpu/gpu-private.h>
 #include <xenia/gpu/xenos/ucode.h>
 
 #include <d3dcompiler.h>
@@ -88,13 +89,26 @@ ID3D10Blob* D3D11Shader::Compile(const char* shader_source) {
   uint32_t flags2 = 0;
 
   // Create a name.
-  char file_name[64];
+  const char* base_path = "";
+  if (FLAGS_dump_shaders.size()) {
+    base_path = FLAGS_dump_shaders.c_str();
+  }
+  char file_name[XE_MAX_PATH];
   xesnprintfa(file_name, XECOUNT(file_name),
-      "gen_%.16XLL.%s",
+      "%s/gen_%.16XLL.%s",
+      base_path,
       hash_,
       type_ == XE_GPU_SHADER_TYPE_VERTEX ? "vs" : "ps");
 
-  // TODO(benvanik): dump to disk so tools can find it.
+  if (FLAGS_dump_shaders.size()) {
+    FILE* f = fopen(file_name, "w");
+    fprintf(f, shader_source);
+    fprintf(f, "\n\n");
+    fprintf(f, "/*\n");
+    fprintf(f, disasm_src_);
+    fprintf(f, " */\n");
+    fclose(f);
+  }
 
   // Compile shader to bytecode blob.
   ID3D10Blob* shader_blob = 0;

src/xenia/gpu/gpu-private.h

@@ -16,6 +16,7 @@
 DECLARE_string(gpu);
 
 DECLARE_bool(trace_ring_buffer);
+DECLARE_string(dump_shaders);
 
 
 #endif  // XENIA_GPU_PRIVATE_H_

src/xenia/gpu/gpu.cc

@@ -22,6 +22,8 @@ DEFINE_string(gpu, "any",
 
 DEFINE_bool(trace_ring_buffer, false,
     "Trace GPU ring buffer packets.");
+DEFINE_string(dump_shaders, "",
+    "Path to write GPU shaders to as they are compiled.");
 
 
 #include <xenia/gpu/nop/nop_gpu.h>