From 1f345ebe3a5501b50f26f0c5c21cac5d55dd79c1 Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Mon, 17 Feb 2020 20:19:26 -0400
Subject: GPU: Implement a Fence Manager.

---
 .../renderer_opengl/gl_fence_manager.cpp           | 55 ++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 src/video_core/renderer_opengl/gl_fence_manager.cpp

(limited to 'src/video_core/renderer_opengl/gl_fence_manager.cpp')

diff --git a/src/video_core/renderer_opengl/gl_fence_manager.cpp b/src/video_core/renderer_opengl/gl_fence_manager.cpp
new file mode 100644
index 000000000..4517ef150
--- /dev/null
+++ b/src/video_core/renderer_opengl/gl_fence_manager.cpp
@@ -0,0 +1,55 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+
+#include "video_core/renderer_opengl/gl_fence_manager.h"
+
+namespace OpenGL {
+
+GLInnerFence::GLInnerFence(GPUVAddr address, u32 payload)
+    : VideoCommon::FenceBase(address, payload), sync_object{} {}
+
+GLInnerFence::~GLInnerFence() = default;
+
+void GLInnerFence::Queue() {
+    ASSERT(sync_object.handle == 0);
+    sync_object.Create();
+}
+
+bool GLInnerFence::IsSignaled() const {
+    ASSERT(sync_object.handle != 0);
+    GLsizei length;
+    GLint sync_status;
+    glGetSynciv(sync_object.handle, GL_SYNC_STATUS, sizeof(GLint), &length, &sync_status);
+    return sync_status == GL_SIGNALED;
+}
+
+void GLInnerFence::Wait() {
+    ASSERT(sync_object.handle != 0);
+    while (glClientWaitSync(sync_object.handle, 0, 1000) == GL_TIMEOUT_EXPIRED)
+        ;
+}
+
+FenceManagerOpenGL::FenceManagerOpenGL(Core::System& system, VideoCore::RasterizerInterface& rasterizer,
+                               TextureCacheOpenGL& texture_cache)
+    : GenericFenceManager(system, rasterizer, texture_cache) {}
+
+Fence FenceManagerOpenGL::CreateFence(GPUVAddr addr, u32 value) {
+    return std::make_shared<GLInnerFence>(addr, value);
+}
+
+void FenceManagerOpenGL::QueueFence(Fence& fence) {
+    fence->Queue();
+}
+
+bool FenceManagerOpenGL::IsFenceSignaled(Fence& fence) {
+    return fence->IsSignaled();
+}
+
+void FenceManagerOpenGL::WaitFence(Fence& fence) {
+    fence->Wait();
+}
+
+} // namespace OpenGL
-- 
cgit v1.2.3