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// SPDX-FileCopyrightText: 2014 Citra Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <vector>
#include <glad/glad.h>
#include "common/common_types.h"
#include "common/math_util.h"
#include "video_core/renderer_base.h"
#include "video_core/renderer_opengl/gl_device.h"
#include "video_core/renderer_opengl/gl_fsr.h"
#include "video_core/renderer_opengl/gl_rasterizer.h"
#include "video_core/renderer_opengl/gl_resource_manager.h"
#include "video_core/renderer_opengl/gl_shader_manager.h"
#include "video_core/renderer_opengl/gl_state_tracker.h"
namespace Core {
class System;
class TelemetrySession;
} // namespace Core
namespace Core::Frontend {
class EmuWindow;
}
namespace Core::Memory {
class Memory;
}
namespace Layout {
struct FramebufferLayout;
}
namespace Tegra {
class GPU;
}
namespace OpenGL {
/// 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;
};
class RendererOpenGL final : public VideoCore::RendererBase {
public:
explicit RendererOpenGL(Core::TelemetrySession& telemetry_session_,
Core::Frontend::EmuWindow& emu_window_,
Tegra::MaxwellDeviceMemoryManager& device_memory_, Tegra::GPU& gpu_,
std::unique_ptr<Core::Frontend::GraphicsContext> context_);
~RendererOpenGL() override;
void SwapBuffers(const Tegra::FramebufferConfig* framebuffer) override;
VideoCore::RasterizerInterface* ReadRasterizer() override {
return &rasterizer;
}
[[nodiscard]] std::string GetDeviceVendor() const override {
return device.GetVendorName();
}
private:
/// Initializes the OpenGL state and creates persistent objects.
void InitOpenGLObjects();
void AddTelemetryFields();
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);
Core::TelemetrySession& telemetry_session;
Core::Frontend::EmuWindow& emu_window;
Tegra::MaxwellDeviceMemoryManager& device_memory;
Tegra::GPU& gpu;
Device device;
StateTracker state_tracker;
ProgramManager program_manager;
RasterizerOpenGL rasterizer;
// OpenGL object IDs
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;
OGLFramebuffer screenshot_framebuffer;
// GPU address of the vertex buffer
GLuint64EXT vertex_buffer_address = 0;
/// 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;
};
} // namespace OpenGL
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