forked from suyu/suyu
112 lines
3.1 KiB
C++
112 lines
3.1 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <vector>
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#include <glad/glad.h>
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#include "common/common_types.h"
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#include "common/math_util.h"
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#include "video_core/renderer_base.h"
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#include "video_core/renderer_opengl/gl_resource_manager.h"
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#include "video_core/renderer_opengl/gl_state.h"
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namespace Core {
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class System;
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}
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namespace Core::Frontend {
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class EmuWindow;
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}
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namespace Layout {
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struct FramebufferLayout;
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}
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namespace OpenGL {
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/// Structure used for storing information about the textures for the Switch screen
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struct TextureInfo {
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OGLTexture resource;
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GLsizei width;
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GLsizei height;
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GLenum gl_format;
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GLenum gl_type;
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Tegra::FramebufferConfig::PixelFormat pixel_format;
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};
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/// Structure used for storing information about the display target for the Switch screen
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struct ScreenInfo {
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GLuint display_texture{};
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bool display_srgb{};
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const Common::Rectangle<float> display_texcoords{0.0f, 0.0f, 1.0f, 1.0f};
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TextureInfo texture;
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};
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class RendererOpenGL final : public VideoCore::RendererBase {
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public:
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explicit RendererOpenGL(Core::Frontend::EmuWindow& emu_window, Core::System& system);
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~RendererOpenGL() override;
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/// Swap buffers (render frame)
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void SwapBuffers(const Tegra::FramebufferConfig* framebuffer) override;
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/// Initialize the renderer
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bool Init() override;
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/// Shutdown the renderer
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void ShutDown() override;
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private:
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/// Initializes the OpenGL state and creates persistent objects.
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void InitOpenGLObjects();
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void AddTelemetryFields();
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void CreateRasterizer();
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void ConfigureFramebufferTexture(TextureInfo& texture,
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const Tegra::FramebufferConfig& framebuffer);
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/// Draws the emulated screens to the emulator window.
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void DrawScreen(const Layout::FramebufferLayout& layout);
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void DrawScreenTriangles(const ScreenInfo& screen_info, float x, float y, float w, float h);
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/// Updates the framerate.
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void UpdateFramerate();
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void CaptureScreenshot();
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/// Loads framebuffer from emulated memory into the active OpenGL texture.
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void LoadFBToScreenInfo(const Tegra::FramebufferConfig& framebuffer);
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/// Fills active OpenGL texture with the given RGB color.Since the color is solid, the texture
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/// can be 1x1 but will stretch across whatever it's rendered on.
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void LoadColorToActiveGLTexture(u8 color_r, u8 color_g, u8 color_b, u8 color_a,
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const TextureInfo& texture);
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Core::Frontend::EmuWindow& emu_window;
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Core::System& system;
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OpenGLState state;
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// OpenGL object IDs
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OGLVertexArray vertex_array;
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OGLBuffer vertex_buffer;
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OGLProgram shader;
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OGLFramebuffer screenshot_framebuffer;
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/// Display information for Switch screen
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ScreenInfo screen_info;
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/// OpenGL framebuffer data
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std::vector<u8> gl_framebuffer_data;
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/// Used for transforming the framebuffer orientation
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Tegra::FramebufferConfig::TransformFlags framebuffer_transform_flags;
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Common::Rectangle<int> framebuffer_crop_rect;
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};
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} // namespace OpenGL
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