From 9098905dd13bb68f2fe49a9590688b76cc999fdd Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Sat, 11 May 2019 03:15:49 -0300
Subject: gl_framebuffer_cache: Use a hashed struct to cache framebuffers

---
 .../renderer_opengl/gl_framebuffer_cache.h         | 68 ++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 src/video_core/renderer_opengl/gl_framebuffer_cache.h

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

diff --git a/src/video_core/renderer_opengl/gl_framebuffer_cache.h b/src/video_core/renderer_opengl/gl_framebuffer_cache.h
new file mode 100644
index 000000000..a3a996353
--- /dev/null
+++ b/src/video_core/renderer_opengl/gl_framebuffer_cache.h
@@ -0,0 +1,68 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <cstddef>
+#include <unordered_map>
+
+#include <glad/glad.h>
+
+#include "common/common_types.h"
+#include "video_core/engines/maxwell_3d.h"
+#include "video_core/renderer_opengl/gl_resource_manager.h"
+#include "video_core/renderer_opengl/gl_state.h"
+#include "video_core/renderer_opengl/gl_texture_cache.h"
+
+namespace OpenGL {
+
+struct alignas(sizeof(u64)) FramebufferCacheKey {
+    bool is_single_buffer = false;
+    bool stencil_enable = false;
+    u16 colors_count = 0;
+
+    std::array<GLenum, Tegra::Engines::Maxwell3D::Regs::NumRenderTargets> color_attachments{};
+    std::array<View, Tegra::Engines::Maxwell3D::Regs::NumRenderTargets> colors;
+    View zeta;
+
+    std::size_t Hash() const;
+
+    bool operator==(const FramebufferCacheKey& rhs) const;
+
+    bool operator!=(const FramebufferCacheKey& rhs) const {
+        return !operator==(rhs);
+    }
+};
+
+} // namespace OpenGL
+
+namespace std {
+
+template <>
+struct hash<OpenGL::FramebufferCacheKey> {
+    std::size_t operator()(const OpenGL::FramebufferCacheKey& k) const noexcept {
+        return k.Hash();
+    }
+};
+
+} // namespace std
+
+namespace OpenGL {
+
+class FramebufferCacheOpenGL {
+public:
+    FramebufferCacheOpenGL();
+    ~FramebufferCacheOpenGL();
+
+    GLuint GetFramebuffer(const FramebufferCacheKey& key);
+
+private:
+    OGLFramebuffer CreateFramebuffer(const FramebufferCacheKey& key);
+
+    OpenGLState local_state;
+    std::unordered_map<FramebufferCacheKey, OGLFramebuffer> cache;
+};
+
+} // namespace OpenGL
-- 
cgit v1.2.3