Add CiTrace recording support.

This is exposed in the GUI as a new "CiTrace Recording" widget.

Playback is implemented by a standalone 3DS homebrew application (which only runs reliably within Citra currently; on an actual 3DS it will often crash still).

1 files changed, 17 insertions, 0 deletions

diff --git a/src/core/hw/gpu.cpp b/src/core/hw/gpu.cpp
index 796493378..a3a7d128f 100644
--- a/src/core/hw/gpu.cpp
+++ b/src/core/hw/gpu.cpp
@@ -21,12 +21,17 @@
 #include "core/hw/hw.h"
 #include "core/hw/gpu.h"
 
+#include "core/tracer/recorder.h"
+
 #include "video_core/command_processor.h"
 #include "video_core/hwrasterizer_base.h"
 #include "video_core/renderer_base.h"
 #include "video_core/utils.h"
 #include "video_core/video_core.h"
 
+#include "video_core/debug_utils/debug_utils.h"
+
+
 namespace GPU {
 
 Regs g_regs;
@@ -289,6 +294,11 @@ inline void Write(u32 addr, const T data) {
         if (config.trigger & 1)
         {
             u32* buffer = (u32*)Memory::GetPhysicalPointer(config.GetPhysicalAddress());
+
+            if (Pica::g_debug_context && Pica::g_debug_context->recorder) {
+                Pica::g_debug_context->recorder->MemoryAccessed((u8*)buffer, config.size * sizeof(u32), config.GetPhysicalAddress());
+            }
+
             Pica::CommandProcessor::ProcessCommandList(buffer, config.size);
 
             g_regs.command_processor_config.trigger = 0;
@@ -299,6 +309,13 @@ inline void Write(u32 addr, const T data) {
     default:
         break;
     }
+
+    // Notify tracer about the register write
+    // This is happening *after* handling the write to make sure we properly catch all memory reads.
+    if (Pica::g_debug_context && Pica::g_debug_context->recorder) {
+        // addr + GPU VBase - IO VBase + IO PBase
+        Pica::g_debug_context->recorder->RegisterWritten<T>(addr + 0x1EF00000 - 0x1EC00000 + 0x10100000, data);
+    }
 }
 
 // Explicitly instantiate template functions because we aren't defining this in the header: