video_core serialization

src/common/archives.h

@@ -1,11 +1,14 @@
 #include "boost/archive/binary_iarchive.hpp"
 #include "boost/archive/binary_oarchive.hpp"
 
-#define SERIALIZE_IMPL(A) template void A::serialize<boost::archive::binary_iarchive>( \
+using iarchive = boost::archive::binary_iarchive;
-    boost::archive::binary_iarchive & ar, \
+using oarchive = boost::archive::binary_oarchive;
+
+#define SERIALIZE_IMPL(A) template void A::serialize<iarchive>( \
+    iarchive & ar, \
     const unsigned int file_version \
 ); \
-template void A::serialize<boost::archive::binary_oarchive>( \
+template void A::serialize<oarchive>( \
-    boost::archive::binary_oarchive & ar, \
+    oarchive & ar, \
     const unsigned int file_version \
 );

src/core/core.cpp

@@ -397,22 +397,28 @@ void System::Reset() {
 template<class Archive>
 void System::serialize(Archive & ar, const unsigned int file_version)
 {
-    ar & memory;
     ar & GPU::g_regs;
     ar & LCD::g_regs;
     ar & dsp_core->GetDspMemory();
+    ar & memory;
 }
 
 void System::Save(std::ostream &stream) const
 {
-    boost::archive::binary_oarchive oa{stream};
+    {
+        oarchive oa{stream};
         oa & *this;
     }
+    VideoCore::Save(stream);
+}
 
 void System::Load(std::istream &stream)
 {
-    boost::archive::binary_iarchive ia{stream};
+    {
+        iarchive ia{stream};
         ia & *this;
     }
+    VideoCore::Load(stream);
+}
 
 } // namespace Core

src/core/hw/gpu.cpp

@@ -472,14 +472,7 @@ inline void Write(u32 addr, const T data) {
         if (config.trigger & 1) {
             MICROPROFILE_SCOPE(GPU_CmdlistProcessing);
 
-            u32* buffer = (u32*)g_memory->GetPhysicalPointer(config.GetPhysicalAddress());
+            Pica::CommandProcessor::ProcessCommandList(config.GetPhysicalAddress(), config.size);
-
-            if (Pica::g_debug_context && Pica::g_debug_context->recorder) {
-                Pica::g_debug_context->recorder->MemoryAccessed((u8*)buffer, config.size,
-                                                                config.GetPhysicalAddress());
-            }
-
-            Pica::CommandProcessor::ProcessCommandList(buffer, config.size);
 
             g_regs.command_processor_config.trigger = 0;
         }

src/video_core/CMakeLists.txt

@@ -94,7 +94,7 @@ endif()
 create_target_directory_groups(video_core)
 
 target_link_libraries(video_core PUBLIC common core)
-target_link_libraries(video_core PRIVATE glad nihstro-headers)
+target_link_libraries(video_core PRIVATE glad nihstro-headers boost_libs)
 
 if (ARCHITECTURE_x86_64)
     target_link_libraries(video_core PUBLIC xbyak)

src/video_core/command_processor.cpp

@@ -640,8 +640,17 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
                                  reinterpret_cast<void*>(&id));
 }
 
-void ProcessCommandList(const u32* list, u32 size) {
+void ProcessCommandList(PAddr list, u32 size) {
-    g_state.cmd_list.head_ptr = g_state.cmd_list.current_ptr = list;
+
+    u32* buffer = (u32*)VideoCore::g_memory->GetPhysicalPointer(list);
+
+    if (Pica::g_debug_context && Pica::g_debug_context->recorder) {
+        Pica::g_debug_context->recorder->MemoryAccessed((u8*)buffer, size,
+                                                        list);
+    }
+
+    g_state.cmd_list.addr = list;
+    g_state.cmd_list.head_ptr = g_state.cmd_list.current_ptr = buffer;
     g_state.cmd_list.length = size / sizeof(u32);
 
     while (g_state.cmd_list.current_ptr < g_state.cmd_list.head_ptr + g_state.cmd_list.length) {

src/video_core/command_processor.h

@@ -32,6 +32,6 @@ static_assert(std::is_standard_layout<CommandHeader>::value == true,
               "CommandHeader does not use standard layout");
 static_assert(sizeof(CommandHeader) == sizeof(u32), "CommandHeader has incorrect size!");
 
-void ProcessCommandList(const u32* list, u32 size);
+void ProcessCommandList(PAddr list, u32 size);
 
 } // namespace Pica::CommandProcessor

src/video_core/pica_state.h

@@ -5,6 +5,7 @@
 #pragma once
 
 #include <array>
+#include "boost/serialization/split_member.hpp"
 #include "common/bit_field.h"
 #include "common/common_types.h"
 #include "common/vector_math.h"
@@ -13,6 +14,18 @@
 #include "video_core/regs.h"
 #include "video_core/shader/shader.h"
 
+// NB, by defining this we can't use the built-in std::array serializer in this file
+namespace boost::serialization {
+
+template<class Archive, typename Value, size_t Size>
+void serialize(Archive & ar, std::array<Value, Size> &array, const unsigned int version)
+{
+    static_assert(sizeof(Value) == sizeof(u32));
+    ar & *static_cast<u32 (*)[Size]>(static_cast<void *>(array.data()));
+}
+
+}
+
 namespace Pica {
 
 /// Struct used to describe current Pica state
@@ -79,6 +92,18 @@ struct State {
         std::array<ValueEntry, 128> alpha_map_table;
         std::array<ColorEntry, 256> color_table;
         std::array<ColorDifferenceEntry, 256> color_diff_table;
+
+    private:
+        friend class boost::serialization::access;
+        template<class Archive>
+        void serialize(Archive & ar, const unsigned int file_version)
+        {
+            ar & noise_table;
+            ar & color_map_table;
+            ar & alpha_map_table;
+            ar & color_table;
+            ar & color_diff_table;
+        }
     } proctex;
 
     struct Lighting {
@@ -101,6 +126,12 @@ struct State {
                 float diff = static_cast<float>(difference) / 2047.f;
                 return neg_difference ? -diff : diff;
             }
+
+            template<class Archive>
+            void serialize(Archive & ar, const unsigned int file_version)
+            {
+                ar & raw;
+            }
         };
 
         std::array<std::array<LutEntry, 256>, 24> luts;
@@ -126,8 +157,11 @@ struct State {
         std::array<LutEntry, 128> lut;
     } fog;
 
+#undef SERIALIZE_RAW
+
     /// Current Pica command list
     struct {
+        PAddr addr; // This exists only for serialization
         const u32* head_ptr;
         const u32* current_ptr;
         u32 length;
@@ -141,6 +175,17 @@ struct State {
         u32 current_attribute = 0;
         // Indicates the immediate mode just started and the geometry pipeline needs to reconfigure
         bool reset_geometry_pipeline = true;
+
+    private:
+        friend class boost::serialization::access;
+        template<class Archive>
+        void serialize(Archive & ar, const unsigned int file_version)
+        {
+            // ar & input_vertex;
+            ar & current_attribute;
+            ar & reset_geometry_pipeline;
+        }
+
     } immediate;
 
     // the geometry shader needs to be kept in the global state because some shaders relie on
@@ -161,6 +206,51 @@ struct State {
 
     int default_attr_counter = 0;
     u32 default_attr_write_buffer[3]{};
+
+private:
+
+    friend class boost::serialization::access;
+    template<class Archive>
+    void serialize(Archive & ar, const unsigned int file_version)
+    {
+        ar & regs.reg_array;
+        // ar & vs;
+        // ar & gs;
+        // ar & input_default_attributes;
+        ar & proctex;
+        for (auto i = 0; i < lighting.luts.size(); i++) {
+            ar & lighting.luts[i];
+        }
+        ar & fog.lut;
+        ar & cmd_list.addr;
+        ar & cmd_list.length;
+        ar & immediate;
+        // ar & gs_unit;
+        // ar & geometry_pipeline;
+        // ar & primitive_assembler;
+        ar & vs_float_regs_counter;
+        ar & vs_uniform_write_buffer;
+        ar & gs_float_regs_counter;
+        ar & gs_uniform_write_buffer;
+        ar & default_attr_counter;
+        ar & default_attr_write_buffer;
+        boost::serialization::split_member(ar, *this, file_version);
+    }
+
+    template<class Archive>
+    void save(Archive & ar, const unsigned int file_version) const
+    {
+        ar << static_cast<u32>(cmd_list.current_ptr - cmd_list.head_ptr);
+    }
+
+    template<class Archive>
+    void load(Archive & ar, const unsigned int file_version)
+    {
+        u32 offset{};
+        ar >> offset;
+        cmd_list.head_ptr = (u32*)VideoCore::g_memory->GetPhysicalPointer(cmd_list.addr);
+        cmd_list.current_ptr = cmd_list.head_ptr + offset;
+    }
 };
 
 extern State g_state; ///< Current Pica state

src/video_core/video_core.cpp

@@ -3,9 +3,11 @@
 // Refer to the license.txt file included.
 
 #include <memory>
+#include "common/archives.h"
 #include "common/logging/log.h"
 #include "core/settings.h"
 #include "video_core/pica.h"
+#include "video_core/pica_state.h"
 #include "video_core/renderer_base.h"
 #include "video_core/renderer_opengl/gl_vars.h"
 #include "video_core/renderer_opengl/renderer_opengl.h"
@@ -85,4 +87,18 @@ u16 GetResolutionScaleFactor() {
     }
 }
 
+void Save(std::ostream &stream)
+{
+    oarchive oa{stream};
+    oa & Pica::g_state;
+}
+
+void Load(std::istream &stream)
+{
+    iarchive ia{stream};
+    ia & Pica::g_state;
+    // TODO: Flush/reset things
+
+}
+
 } // namespace VideoCore

src/video_core/video_core.h

@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <iostream>
 #include <atomic>
 #include <memory>
 #include "core/frontend/emu_window.h"
@@ -61,4 +62,7 @@ void RequestScreenshot(void* data, std::function<void()> callback,
 
 u16 GetResolutionScaleFactor();
 
+void Save(std::ostream &stream);
+void Load(std::istream &stream);
+
 } // namespace VideoCore