early-access version 1255

src/video_core/command_classes/nvdec.cpp

@@ -0,0 +1,48 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "video_core/command_classes/nvdec.h"
+#include "video_core/gpu.h"
+
+namespace Tegra {
+
+Nvdec::Nvdec(GPU& gpu_) : gpu(gpu_), codec(std::make_unique<Codec>(gpu)) {}
+
+Nvdec::~Nvdec() = default;
+
+void Nvdec::ProcessMethod(Method method, const std::vector<u32>& arguments) {
+    if (method == Method::SetVideoCodec) {
+        codec->StateWrite(static_cast<u32>(method), arguments[0]);
+    } else {
+        codec->StateWrite(static_cast<u32>(method), static_cast<u64>(arguments[0]) << 8);
+    }
+
+    switch (method) {
+    case Method::SetVideoCodec:
+        codec->SetTargetCodec(static_cast<NvdecCommon::VideoCodec>(arguments[0]));
+        break;
+    case Method::Execute:
+        Execute();
+        break;
+    }
+}
+
+AVFramePtr Nvdec::GetFrame() {
+    return codec->GetCurrentFrame();
+}
+
+void Nvdec::Execute() {
+    switch (codec->GetCurrentCodec()) {
+    case NvdecCommon::VideoCodec::H264:
+    case NvdecCommon::VideoCodec::Vp9:
+        codec->Decode();
+        break;
+    default:
+        UNIMPLEMENTED_MSG("Unknown codec {}", static_cast<u32>(codec->GetCurrentCodec()));
+        break;
+    }
+}
+
+} // namespace Tegra