Massively disgusting and incomplete shader translator.

src/xenia/gpu/d3d11/d3d11_graphics_driver.cc

@@ -83,15 +83,12 @@ void D3D11GraphicsDriver::SetShader(
       type, p, length);
 
   // Disassemble.
-  char* source = shader->Disassemble();
+  const char* source = shader->disasm_src();
   if (!source) {
     source = "<failed to disassemble>";
   }
   XELOGGPU("D3D11: set shader %d at %0.8X (%db):\n%s",
            type, address, length, source);
-  if (source) {
-    xe_free(source);
-  }
 
   // Stash for later.
   switch (type) {
@@ -289,7 +286,7 @@ int D3D11GraphicsDriver::BindShaders() {
   if (ps) {
     if (!ps->is_prepared()) {
       // Prepare for use.
-      if (ps->Prepare(&program_cntl)) {
+      if (ps->Prepare(&program_cntl, vs)) {
         XELOGGPU("D3D11: failed to prepare pixel shader");
         state_.pixel_shader = NULL;
         return 1;

src/xenia/gpu/d3d11/d3d11_shader.h

@@ -22,6 +22,13 @@ namespace xe {
 namespace gpu {
 namespace d3d11 {
 
+struct Output;
+
+typedef struct {
+  Output*       output;
+  xenos::XE_GPU_SHADER_TYPE type;
+} xe_gpu_translate_ctx_t;
+
 
 class D3D11Shader : public Shader {
 public:
@@ -34,8 +41,18 @@ protected:
       const uint8_t* src_ptr, size_t length,
       uint64_t hash);
 
+  const char* translated_src() const { return translated_src_; }
+  void set_translated_src(char* value);
+
+  int TranslateExec(
+      xe_gpu_translate_ctx_t& ctx, const xenos::instr_cf_exec_t& cf);
+
+  ID3D10Blob* Compile(const char* shader_source);
+
 protected:
   ID3D11Device* device_;
+
+  char*   translated_src_;
 };
 
 
@@ -52,6 +69,9 @@ public:
 
   int Prepare(xenos::xe_gpu_program_cntl_t* program_cntl);
 
+private:
+  const char* Translate(xenos::xe_gpu_program_cntl_t* program_cntl);
+
 private:
   ID3D11VertexShader* handle_;
   ID3D11InputLayout*  input_layout_;
@@ -68,7 +88,12 @@ public:
 
   ID3D11PixelShader* handle() const { return handle_; }
 
-  int Prepare(xenos::xe_gpu_program_cntl_t* program_cntl);
+  int Prepare(xenos::xe_gpu_program_cntl_t* program_cntl,
+              D3D11VertexShader* input_shader);
+
+private:
+  const char* Translate(xenos::xe_gpu_program_cntl_t* program_cntl,
+                        D3D11VertexShader* input_shader);
 
 private:
   ID3D11PixelShader*  handle_;

src/xenia/gpu/nop/nop_graphics_driver.cc

@@ -55,15 +55,12 @@ void NopGraphicsDriver::SetShader(
       type, p, length);
 
   // Disassemble.
-  char* source = shader->Disassemble();
+  const char* source = shader->disasm_src();
   if (!source) {
     source = "<failed to disassemble>";
   }
   XELOGGPU("NOP: set shader %d at %0.8X (%db):\n%s",
            type, address, length, source);
-  if (source) {
-    xe_free(source);
-  }
 }
 
 void NopGraphicsDriver::DrawIndexAuto(

src/xenia/gpu/shader.cc

@@ -21,7 +21,8 @@ Shader::Shader(
     XE_GPU_SHADER_TYPE type,
     const uint8_t* src_ptr, size_t length,
     uint64_t hash) :
-    type_(type), hash_(hash), is_prepared_(false) {
+    type_(type), hash_(hash), is_prepared_(false), disasm_src_(NULL) {
+  xe_zero_struct(&alloc_counts_, sizeof(alloc_counts_));
   xe_zero_struct(fetch_vtx_slots_, sizeof(fetch_vtx_slots_));
 
   // Verify.
@@ -37,9 +38,15 @@ Shader::Shader(
 
   // Gather input/output registers/etc.
   GatherIO();
+
+  // Disassemble, for debugging.
+  disasm_src_ = DisassembleShader(type_, dwords_, dword_count_);
 }
 
 Shader::~Shader() {
+  if (disasm_src_) {
+    xe_free(disasm_src_);
+  }
   xe_free(dwords_);
 }
 
@@ -73,9 +80,26 @@ void Shader::GatherIO() {
 
 void Shader::GatherAlloc(const instr_cf_alloc_t* cf) {
   allocs_.push_back(*cf);
+
+  switch (cf->buffer_select) {
+  case SQ_POSITION:
+    // Position (SV_POSITION).
+    alloc_counts_.positions += cf->size + 1;
+    break;
+  case SQ_PARAMETER_PIXEL:
+    // Output to PS (if VS), or frag output (if PS).
+    alloc_counts_.params += cf->size + 1;
+    break;
+  case SQ_MEMORY:
+    // MEMEXPORT?
+    alloc_counts_.memories += cf->size + 1;
+    break;
+  }
 }
 
 void Shader::GatherExec(const instr_cf_exec_t* cf) {
+  execs_.push_back(*cf);
+
   uint32_t sequence = cf->serialize;
   for (uint32_t i = 0; i < cf->count; i++) {
     uint32_t alu_off = (cf->address + i);
@@ -129,7 +153,3 @@ void Shader::GatherVertexFetch(const instr_fetch_vtx_t* vtx) {
 const instr_fetch_vtx_t* Shader::GetFetchVtxBySlot(uint32_t fetch_slot) {
   return &fetch_vtx_slots_[fetch_slot];
 }
-
-char* Shader::Disassemble() {
-  return DisassembleShader(type_, dwords_, dword_count_);
-}

src/xenia/gpu/shader.h

@@ -32,10 +32,16 @@ public:
   uint64_t hash() const { return hash_; }
   bool is_prepared() const { return is_prepared_; }
 
+  const char* disasm_src() const { return disasm_src_; }
+
   const xenos::instr_fetch_vtx_t* GetFetchVtxBySlot(uint32_t fetch_slot);
 
-  // NOTE: xe_free() the returned string!
-  char* Disassemble();
+  typedef struct {
+    uint32_t  positions;
+    uint32_t  params;
+    uint32_t  memories;
+  } alloc_counts_t;
+  const alloc_counts_t& alloc_counts() const { return alloc_counts_; }
 
 private:
   void GatherIO();
@@ -50,6 +56,10 @@ protected:
   uint64_t    hash_;
   bool        is_prepared_;
 
+  char*       disasm_src_;
+
+  alloc_counts_t alloc_counts_;
+  std::vector<xenos::instr_cf_exec_t> execs_;
   std::vector<xenos::instr_cf_alloc_t>  allocs_;
   std::vector<xenos::instr_fetch_vtx_t> fetch_vtxs_;
   xenos::instr_fetch_vtx_t fetch_vtx_slots_[96];

src/xenia/gpu/xenos/ucode.h

@@ -297,6 +297,14 @@ XEPACKEDSTRUCT(instr_cf_exec_t, {
     uint32_t            address_mode            : 1;    // instr_addr_mode_t
     uint32_t            opc                     : 4;    // instr_cf_opc_t
   });
+  bool is_cond_exec() const {
+    return (this->opc == COND_EXEC) ||
+           (this->opc == COND_EXEC_END) ||
+           (this->opc == COND_PRED_EXEC) ||
+           (this->opc == COND_PRED_EXEC_END) ||
+           (this->opc == COND_EXEC_PRED_CLEAN) ||
+           (this->opc == COND_EXEC_PRED_CLEAN_END);
+  }
 });
 
 XEPACKEDSTRUCT(instr_cf_loop_t, {

src/xenia/gpu/xenos/ucode_disassembler.cc

@@ -255,6 +255,11 @@ int disasm_alu(
 
   output->append("   %sALU:\t", sync ? "(S)" : "   ");
 
+  if (!alu->scalar_write_mask && !alu->vector_write_mask) {
+    output->append("   <nop>\n");
+  }
+
+  if (alu->vector_write_mask) {
     output->append("%s", vector_instructions[alu->vector_opc].name);
 
     if (alu->pred_select & 0x2) {
@@ -293,6 +298,7 @@ int disasm_alu(
     }
 
     output->append("\n");
+  }
 
   if (alu->scalar_write_mask || !alu->vector_write_mask) {
     // 2nd optional scalar op:

src/xenia/gpu/xenos/xenos.h

@@ -45,8 +45,10 @@ typedef enum {
 // XE_GPU_REG_SQ_PROGRAM_CNTL
 typedef union {
   XEPACKEDSTRUCTANONYMOUS({
-    uint32_t vs_regs            : 8;
-    uint32_t ps_regs            : 8;
+    uint32_t vs_regs            : 6;
+    uint32_t                    : 2;
+    uint32_t ps_regs            : 6;
+    uint32_t                    : 2;
     uint32_t vs_resource        : 1;
     uint32_t ps_resource        : 1;
     uint32_t param_gen          : 1;