Factoring out a lot of reusable GPU code from gl4/.

src/xenia/gpu/packet_disassembler.h

@@ -0,0 +1,103 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2015 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_GPU_PACKET_DISASSEMBLER_H_
+#define XENIA_GPU_PACKET_DISASSEMBLER_H_
+
+#include <vector>
+
+#include "xenia/gpu/register_file.h"
+#include "xenia/gpu/trace_protocol.h"
+#include "xenia/gpu/trace_reader.h"
+#include "xenia/memory.h"
+
+namespace xe {
+namespace gpu {
+
+enum class PacketCategory {
+  kGeneric,
+  kDraw,
+  kSwap,
+};
+
+struct PacketTypeInfo {
+  PacketCategory category;
+  const char* name;
+};
+
+struct PacketAction {
+  enum class Type {
+    kRegisterWrite,
+    kSetBinMask,
+    kSetBinSelect,
+  };
+  Type type;
+
+  union {
+    struct {
+      uint32_t index;
+      RegisterFile::RegisterValue value;
+    } register_write;
+    struct {
+      uint64_t value;
+    } set_bin_mask;
+    struct {
+      uint64_t value;
+    } set_bin_select;
+  };
+
+  static PacketAction RegisterWrite(uint32_t index, uint32_t value) {
+    PacketAction action;
+    action.type = Type::kRegisterWrite;
+    action.register_write.index = index;
+    action.register_write.value.u32 = value;
+    return action;
+  }
+
+  static PacketAction SetBinMask(uint64_t value) {
+    PacketAction action;
+    action.type = Type::kSetBinMask;
+    action.set_bin_mask.value = value;
+    return action;
+  }
+
+  static PacketAction SetBinSelect(uint64_t value) {
+    PacketAction action;
+    action.type = Type::kSetBinSelect;
+    action.set_bin_select.value = value;
+    return action;
+  }
+};
+
+struct PacketInfo {
+  const PacketTypeInfo* type_info;
+  bool predicated;
+  uint32_t count;
+  std::vector<PacketAction> actions;
+};
+
+class PacketDisassembler {
+ public:
+  static PacketCategory GetPacketCategory(const uint8_t* base_ptr);
+
+  static bool DisasmPacketType0(const uint8_t* base_ptr, uint32_t packet,
+                                PacketInfo* out_info);
+  static bool DisasmPacketType1(const uint8_t* base_ptr, uint32_t packet,
+                                PacketInfo* out_info);
+  static bool DisasmPacketType2(const uint8_t* base_ptr, uint32_t packet,
+                                PacketInfo* out_info);
+  static bool DisasmPacketType3(const uint8_t* base_ptr, uint32_t packet,
+                                PacketInfo* out_info);
+  static bool DisasmPacket(const uint8_t* base_ptr, PacketInfo* out_info);
+};
+
+}  // namespace gpu
+}  // namespace xe
+
+#endif  // XENIA_GPU_PACKET_DISASSEMBLER_H_