1 files changed, 64 insertions, 0 deletions
diff --git a/src/video_core/control/channel_state_cache.inc b/src/video_core/control/channel_state_cache.inc
new file mode 100644
index 000000000..3eb73af9f
--- /dev/null
+++ b/src/video_core/control/channel_state_cache.inc
@@ -0,0 +1,64 @@
+#include "video_core/control/channel_state.h"
+#include "video_core/control/channel_state_cache.h"
+#include "video_core/engines/kepler_compute.h"
+#include "video_core/engines/maxwell_3d.h"
+#include "video_core/memory_manager.h"
+
+namespace VideoCommon {
+
+ChannelInfo::ChannelInfo(Tegra::Control::ChannelState& channel_state)
+    : maxwell3d{*channel_state.maxwell_3d}, kepler_compute{*channel_state.kepler_compute},
+      gpu_memory{*channel_state.memory_manager} {}
+
+template <class P>
+void ChannelSetupCaches<P>::CreateChannel(struct Tegra::Control::ChannelState& channel) {
+    ASSERT(channel_map.find(channel.bind_id) == channel_map.end() && channel.bind_id >= 0);
+    auto new_id = [this, &channel]() {
+        if (!free_channel_ids.empty()) {
+            auto id = free_channel_ids.front();
+            free_channel_ids.pop_front();
+            new (&channel_storage[id]) ChannelInfo(channel);
+            return id;
+        }
+        channel_storage.emplace_back(channel);
+        return channel_storage.size() - 1;
+    }();
+    channel_map.emplace(channel.bind_id, new_id);
+    if (current_channel_id != UNSET_CHANNEL) {
+        channel_state = &channel_storage[current_channel_id];
+    }
+}
+
+/// Bind a channel for execution.
+template <class P>
+void ChannelSetupCaches<P>::BindToChannel(s32 id) {
+    auto it = channel_map.find(id);
+    ASSERT(it != channel_map.end() && id >= 0);
+    current_channel_id = it->second;
+    channel_state = &channel_storage[current_channel_id];
+    maxwell3d = &channel_state->maxwell3d;
+    kepler_compute = &channel_state->kepler_compute;
+    gpu_memory = &channel_state->gpu_memory;
+}
+
+/// Erase channel's channel_state.
+template <class P>
+void ChannelSetupCaches<P>::EraseChannel(s32 id) {
+    const auto it = channel_map.find(id);
+    ASSERT(it != channel_map.end() && id >= 0);
+    const auto this_id = it->second;
+    free_channel_ids.push_back(this_id);
+    channel_map.erase(it);
+    if (this_id == current_channel_id) {
+        current_channel_id = UNSET_CHANNEL;
+        channel_state = nullptr;
+        maxwell3d = nullptr;
+        kepler_compute = nullptr;
+        gpu_memory = nullptr;
+    } else if (current_channel_id != UNSET_CHANNEL) {
+        channel_state = &channel_storage[current_channel_id];
+    }
+}
+
+
+} // namespace VideoCommon