1 files changed, 110 insertions, 0 deletions

diff --git a/src/video_core/renderer_opengl/gl_blit_screen.h b/src/video_core/renderer_opengl/gl_blit_screen.h
new file mode 100644
index 000000000..13d769958
--- /dev/null
+++ b/src/video_core/renderer_opengl/gl_blit_screen.h
@@ -0,0 +1,110 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+#include <vector>
+
+#include "core/hle/service/nvnflinger/pixel_format.h"
+#include "video_core/host1x/gpu_device_memory_manager.h"
+#include "video_core/renderer_opengl/gl_fsr.h"
+#include "video_core/renderer_opengl/gl_resource_manager.h"
+
+namespace Layout {
+struct FramebufferLayout;
+}
+
+namespace Tegra {
+struct FramebufferConfig;
+}
+
+namespace OpenGL {
+
+class Device;
+class RasterizerOpenGL;
+class StateTracker;
+
+/// Structure used for storing information about the textures for the Switch screen
+struct TextureInfo {
+    OGLTexture resource;
+    GLsizei width;
+    GLsizei height;
+    GLenum gl_format;
+    GLenum gl_type;
+    Service::android::PixelFormat pixel_format;
+};
+
+/// Structure used for storing information about the display target for the Switch screen
+struct FramebufferTextureInfo {
+    GLuint display_texture{};
+    u32 width;
+    u32 height;
+    u32 scaled_width;
+    u32 scaled_height;
+};
+
+class BlitScreen {
+public:
+    explicit BlitScreen(RasterizerOpenGL& rasterizer,
+                        Tegra::MaxwellDeviceMemoryManager& device_memory,
+                        StateTracker& state_tracker, ProgramManager& program_manager,
+                        Device& device);
+
+    void ConfigureFramebufferTexture(const Tegra::FramebufferConfig& framebuffer);
+
+    /// Draws the emulated screens to the emulator window.
+    void DrawScreen(const Tegra::FramebufferConfig& framebuffer,
+                    const Layout::FramebufferLayout& layout);
+
+    void RenderScreenshot(const Tegra::FramebufferConfig& framebuffer);
+
+    /// Loads framebuffer from emulated memory into the active OpenGL texture.
+    FramebufferTextureInfo LoadFBToScreenInfo(const Tegra::FramebufferConfig& framebuffer);
+
+    FramebufferTextureInfo PrepareRenderTarget(const Tegra::FramebufferConfig& framebuffer);
+
+private:
+    RasterizerOpenGL& rasterizer;
+    Tegra::MaxwellDeviceMemoryManager& device_memory;
+    StateTracker& state_tracker;
+    ProgramManager& program_manager;
+    Device& device;
+
+    OGLSampler present_sampler;
+    OGLSampler present_sampler_nn;
+    OGLBuffer vertex_buffer;
+    OGLProgram fxaa_vertex;
+    OGLProgram fxaa_fragment;
+    OGLProgram present_vertex;
+    OGLProgram present_bilinear_fragment;
+    OGLProgram present_bicubic_fragment;
+    OGLProgram present_gaussian_fragment;
+    OGLProgram present_scaleforce_fragment;
+
+    /// Display information for Switch screen
+    TextureInfo framebuffer_texture;
+    OGLTexture aa_texture;
+    OGLFramebuffer aa_framebuffer;
+
+    OGLProgram smaa_edge_detection_vert;
+    OGLProgram smaa_blending_weight_calculation_vert;
+    OGLProgram smaa_neighborhood_blending_vert;
+    OGLProgram smaa_edge_detection_frag;
+    OGLProgram smaa_blending_weight_calculation_frag;
+    OGLProgram smaa_neighborhood_blending_frag;
+    OGLTexture smaa_area_tex;
+    OGLTexture smaa_search_tex;
+    OGLTexture smaa_edges_tex;
+    OGLTexture smaa_blend_tex;
+
+    std::unique_ptr<FSR> fsr;
+
+    /// OpenGL framebuffer data
+    std::vector<u8> gl_framebuffer_data;
+
+    // GPU address of the vertex buffer
+    GLuint64EXT vertex_buffer_address = 0;
+};
+
+} // namespace OpenGL