From 10cf0585180bcf2eab38ebf65dc593fecc4ddf92 Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Thu, 18 Jan 2024 20:47:50 -0500
Subject: renderer_opengl: implement layer stack composition

---
 src/video_core/renderer_opengl/gl_blit_screen.h | 38 ++++---------------------
 1 file changed, 5 insertions(+), 33 deletions(-)

(limited to 'src/video_core/renderer_opengl/gl_blit_screen.h')

diff --git a/src/video_core/renderer_opengl/gl_blit_screen.h b/src/video_core/renderer_opengl/gl_blit_screen.h
index f42f89dee..0c3d838f1 100644
--- a/src/video_core/renderer_opengl/gl_blit_screen.h
+++ b/src/video_core/renderer_opengl/gl_blit_screen.h
@@ -3,8 +3,9 @@
 
 #pragma once
 
+#include <list>
 #include <memory>
-#include <vector>
+#include <span>
 
 #include "core/hle/service/nvnflinger/pixel_format.h"
 #include "video_core/host1x/gpu_device_memory_manager.h"
@@ -25,24 +26,12 @@ enum class ScalingFilter : u32;
 namespace OpenGL {
 
 class Device;
-class FSR;
-class FXAA;
+class Layer;
 class ProgramManager;
 class RasterizerOpenGL;
-class SMAA;
 class StateTracker;
 class WindowAdaptPass;
 
-/// 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{};
@@ -60,20 +49,11 @@ public:
                         Device& device);
     ~BlitScreen();
 
-    void ConfigureFramebufferTexture(const Tegra::FramebufferConfig& framebuffer);
-
     /// Draws the emulated screens to the emulator window.
-    void DrawScreen(const Tegra::FramebufferConfig& framebuffer,
+    void DrawScreen(std::span<const Tegra::FramebufferConfig> framebuffers,
                     const Layout::FramebufferLayout& layout);
 
-    /// Loads framebuffer from emulated memory into the active OpenGL texture.
-    FramebufferTextureInfo LoadFBToScreenInfo(const Tegra::FramebufferConfig& framebuffer);
-
-    FramebufferTextureInfo PrepareRenderTarget(const Tegra::FramebufferConfig& framebuffer);
-
 private:
-    void CreateFXAA();
-    void CreateSMAA();
     void CreateWindowAdapt();
 
     RasterizerOpenGL& rasterizer;
@@ -82,18 +62,10 @@ private:
     ProgramManager& program_manager;
     Device& device;
 
-    /// Display information for Switch screen
-    TextureInfo framebuffer_texture;
-
-    std::unique_ptr<FSR> fsr;
-    std::unique_ptr<FXAA> fxaa;
-    std::unique_ptr<SMAA> smaa;
-
     Settings::ScalingFilter current_window_adapt{};
     std::unique_ptr<WindowAdaptPass> window_adapt;
 
-    /// OpenGL framebuffer data
-    std::vector<u8> gl_framebuffer_data;
+    std::list<Layer> layers;
 };
 
 } // namespace OpenGL
-- 
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