Merge pull request #9539 from Wollnashorn/opengl-fsr

video_core/opengl: Added FSR upscaling filter to the OpenGL renderer

1 files changed, 43 insertions, 0 deletions

diff --git a/src/video_core/renderer_opengl/gl_fsr.h b/src/video_core/renderer_opengl/gl_fsr.h
new file mode 100644
index 000000000..1f6ae3115
--- /dev/null
+++ b/src/video_core/renderer_opengl/gl_fsr.h
@@ -0,0 +1,43 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string_view>
+
+#include "common/common_types.h"
+#include "common/math_util.h"
+#include "video_core/fsr.h"
+#include "video_core/renderer_opengl/gl_resource_manager.h"
+
+namespace OpenGL {
+
+class ProgramManager;
+
+class FSR {
+public:
+    explicit FSR(std::string_view fsr_vertex_source, std::string_view fsr_easu_source,
+                 std::string_view fsr_rcas_source);
+    ~FSR();
+
+    void Draw(ProgramManager& program_manager, const Common::Rectangle<u32>& screen,
+              u32 input_image_width, u32 input_image_height,
+              const Common::Rectangle<int>& crop_rect);
+
+    void InitBuffers();
+
+    void ReleaseBuffers();
+
+    [[nodiscard]] const OGLProgram& GetPresentFragmentProgram() const noexcept;
+
+    [[nodiscard]] bool AreBuffersInitialized() const noexcept;
+
+private:
+    OGLFramebuffer fsr_framebuffer;
+    OGLProgram fsr_vertex;
+    OGLProgram fsr_easu_frag;
+    OGLProgram fsr_rcas_frag;
+    OGLTexture fsr_intermediate_tex;
+};
+
+} // namespace OpenGL