VideoCommon: Add support for icons in OSD messages.

Source/Core/Core/Core.cpp

@@ -579,9 +579,6 @@ static void EmuThread(std::unique_ptr<BootParameters> boot, WindowSystemInfo wsi
     HW::Shutdown(system);
     INFO_LOG_FMT(CONSOLE, "{}", StopMessage(false, "HW shutdown"));
 
-    // Clear on screen messages that haven't expired
-    OSD::ClearMessages();
-
     // The config must be restored only after the whole HW has shut down,
     // not when it is still running.
     BootManager::RestoreConfig();
@@ -600,7 +597,12 @@ static void EmuThread(std::unique_ptr<BootParameters> boot, WindowSystemInfo wsi
     PanicAlertFmt("Failed to initialize video backend!");
     return;
   }
-  Common::ScopeGuard video_guard{[] { g_video_backend->Shutdown(); }};
+  Common::ScopeGuard video_guard{[] {
+    // Clear on screen messages that haven't expired
+    OSD::ClearMessages();
+
+    g_video_backend->Shutdown();
+  }};
 
   if (cpu_info.HTT)
     Config::SetBaseOrCurrent(Config::MAIN_DSP_THREAD, cpu_info.num_cores > 4);

Source/Core/VideoCommon/OnScreenDisplay.cpp

@@ -18,6 +18,10 @@
 
 #include "Core/Config/MainSettings.h"
 
+#include "VideoCommon/AbstractGfx.h"
+#include "VideoCommon/AbstractTexture.h"
+#include "VideoCommon/TextureConfig.h"
+
 namespace OSD
 {
 constexpr float LEFT_MARGIN = 10.0f;         // Pixels to the left of OSD messages.
@@ -32,8 +36,8 @@ static std::atomic<int> s_obscured_pixels_top = 0;
 struct Message
 {
   Message() = default;
-  Message(std::string text_, u32 duration_, u32 color_)
-      : text(std::move(text_)), duration(duration_), color(color_)
+  Message(std::string text_, u32 duration_, u32 color_, std::unique_ptr<Icon> icon_ = nullptr)
+      : text(std::move(text_)), duration(duration_), color(color_), icon(std::move(icon_))
   {
     timer.Start();
   }
@@ -42,7 +46,10 @@ struct Message
   Common::Timer timer;
   u32 duration = 0;
   bool ever_drawn = false;
+  bool should_discard = false;
   u32 color = 0;
+  std::unique_ptr<Icon> icon;
+  std::unique_ptr<AbstractTexture> texture;
 };
 static std::multimap<MessageType, Message> s_messages;
 static std::mutex s_messages_mutex;
@@ -77,6 +84,33 @@ static float DrawMessage(int index, Message& msg, const ImVec2& position, int ti
                        ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoNav |
                        ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoFocusOnAppearing))
   {
+    if (msg.icon)
+    {
+      if (!msg.texture)
+      {
+        const u32 width = msg.icon->width;
+        const u32 height = msg.icon->height;
+        TextureConfig tex_config(width, height, 1, 1, 1, AbstractTextureFormat::RGBA8, 0);
+        msg.texture = g_gfx->CreateTexture(tex_config);
+        if (msg.texture)
+        {
+          msg.texture->Load(0, width, height, width, msg.icon->rgba_data.data(),
+                            sizeof(u32) * width * height);
+        }
+        else
+        {
+          // don't try again next time
+          msg.icon.reset();
+        }
+      }
+
+      if (msg.texture)
+      {
+        ImGui::Image(msg.texture.get(), ImVec2(static_cast<float>(msg.icon->width),
+                                               static_cast<float>(msg.icon->height)));
+      }
+    }
+
     // Use %s in case message contains %.
     ImGui::TextColored(ARGBToImVec4(msg.color), "%s", msg.text.c_str());
     window_height =
@@ -91,17 +125,25 @@ static float DrawMessage(int index, Message& msg, const ImVec2& position, int ti
   return window_height;
 }
 
-void AddTypedMessage(MessageType type, std::string message, u32 ms, u32 argb)
+void AddTypedMessage(MessageType type, std::string message, u32 ms, u32 argb,
+                     std::unique_ptr<Icon> icon)
 {
   std::lock_guard lock{s_messages_mutex};
-  s_messages.erase(type);
-  s_messages.emplace(type, Message(std::move(message), ms, argb));
+
+  // A message may hold a reference to a texture that can only be destroyed on the video thread, so
+  // only mark the old typed message (if any) for removal. It will be discarded on the next call to
+  // DrawMessages().
+  auto range = s_messages.equal_range(type);
+  for (auto it = range.first; it != range.second; ++it)
+    it->second.should_discard = true;
+
+  s_messages.emplace(type, Message(std::move(message), ms, argb, std::move(icon)));
 }
 
-void AddMessage(std::string message, u32 ms, u32 argb)
+void AddMessage(std::string message, u32 ms, u32 argb, std::unique_ptr<Icon> icon)
 {
   std::lock_guard lock{s_messages_mutex};
-  s_messages.emplace(MessageType::Typeless, Message(std::move(message), ms, argb));
+  s_messages.emplace(MessageType::Typeless, Message(std::move(message), ms, argb, std::move(icon)));
 }
 
 void DrawMessages()
@@ -117,6 +159,12 @@ void DrawMessages()
   for (auto it = s_messages.begin(); it != s_messages.end();)
   {
     Message& msg = it->second;
+    if (msg.should_discard)
+    {
+      it = s_messages.erase(it);
+      continue;
+    }
+
     const s64 time_left = msg.TimeRemaining();
 
     // Make sure we draw them at least once if they were printed with 0ms,

Source/Core/VideoCommon/OnScreenDisplay.h

@@ -4,7 +4,9 @@
 #pragma once
 
 #include <functional>
+#include <memory>
 #include <string>
+#include <vector>
 
 #include "Common/CommonTypes.h"
 
@@ -35,10 +37,18 @@ constexpr u32 NORMAL = 5000;
 constexpr u32 VERY_LONG = 10000;
 };  // namespace Duration
 
+struct Icon
+{
+  std::vector<u8> rgba_data;
+  u32 width = 0;
+  u32 height = 0;
+};  // struct Icon
+
 // On-screen message display (colored yellow by default)
-void AddMessage(std::string message, u32 ms = Duration::SHORT, u32 argb = Color::YELLOW);
+void AddMessage(std::string message, u32 ms = Duration::SHORT, u32 argb = Color::YELLOW,
+                std::unique_ptr<Icon> icon = nullptr);
 void AddTypedMessage(MessageType type, std::string message, u32 ms = Duration::SHORT,
-                     u32 argb = Color::YELLOW);
+                     u32 argb = Color::YELLOW, std::unique_ptr<Icon> icon = nullptr);
 
 // Draw the current messages on the screen. Only call once per frame.
 void DrawMessages();