1 files changed, 204 insertions, 0 deletions
diff --git a/src/video_core/renderer_opengl/gl_state_tracker.h b/src/video_core/renderer_opengl/gl_state_tracker.h
new file mode 100644
index 000000000..e08482911
--- /dev/null
+++ b/src/video_core/renderer_opengl/gl_state_tracker.h
@@ -0,0 +1,204 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <limits>
+
+#include <glad/glad.h>
+
+#include "common/common_types.h"
+#include "core/core.h"
+#include "video_core/dirty_flags.h"
+#include "video_core/engines/maxwell_3d.h"
+
+namespace Core {
+class System;
+}
+
+namespace OpenGL {
+
+namespace Dirty {
+
+enum : u8 {
+    First = VideoCommon::Dirty::LastCommonEntry,
+
+    VertexFormats,
+    VertexFormat0,
+    VertexFormat31 = VertexFormat0 + 31,
+
+    VertexBuffers,
+    VertexBuffer0,
+    VertexBuffer31 = VertexBuffer0 + 31,
+
+    VertexInstances,
+    VertexInstance0,
+    VertexInstance31 = VertexInstance0 + 31,
+
+    ViewportTransform,
+    Viewports,
+    Viewport0,
+    Viewport15 = Viewport0 + 15,
+
+    Scissors,
+    Scissor0,
+    Scissor15 = Scissor0 + 15,
+
+    ColorMaskCommon,
+    ColorMasks,
+    ColorMask0,
+    ColorMask7 = ColorMask0 + 7,
+
+    BlendColor,
+    BlendIndependentEnabled,
+    BlendStates,
+    BlendState0,
+    BlendState7 = BlendState0 + 7,
+
+    Shaders,
+    ClipDistances,
+
+    ColorMask,
+    FrontFace,
+    CullTest,
+    DepthMask,
+    DepthTest,
+    StencilTest,
+    AlphaTest,
+    PrimitiveRestart,
+    PolygonOffset,
+    MultisampleControl,
+    RasterizeEnable,
+    FramebufferSRGB,
+    LogicOp,
+    FragmentClampColor,
+    PointSize,
+    ClipControl,
+    DepthClampEnabled,
+
+    Last
+};
+static_assert(Last <= std::numeric_limits<u8>::max());
+
+} // namespace Dirty
+
+class StateTracker {
+public:
+    explicit StateTracker(Core::System& system);
+
+    void Initialize();
+
+    void BindIndexBuffer(GLuint new_index_buffer) {
+        if (index_buffer == new_index_buffer) {
+            return;
+        }
+        index_buffer = new_index_buffer;
+        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, new_index_buffer);
+    }
+
+    void NotifyScreenDrawVertexArray() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::VertexFormats] = true;
+        flags[OpenGL::Dirty::VertexFormat0 + 0] = true;
+        flags[OpenGL::Dirty::VertexFormat0 + 1] = true;
+
+        flags[OpenGL::Dirty::VertexBuffers] = true;
+        flags[OpenGL::Dirty::VertexBuffer0] = true;
+
+        flags[OpenGL::Dirty::VertexInstances] = true;
+        flags[OpenGL::Dirty::VertexInstance0 + 0] = true;
+        flags[OpenGL::Dirty::VertexInstance0 + 1] = true;
+    }
+
+    void NotifyViewport0() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::Viewports] = true;
+        flags[OpenGL::Dirty::Viewport0] = true;
+    }
+
+    void NotifyScissor0() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::Scissors] = true;
+        flags[OpenGL::Dirty::Scissor0] = true;
+    }
+
+    void NotifyColorMask0() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::ColorMasks] = true;
+        flags[OpenGL::Dirty::ColorMask0] = true;
+    }
+
+    void NotifyBlend0() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::BlendStates] = true;
+        flags[OpenGL::Dirty::BlendState0] = true;
+    }
+
+    void NotifyFramebuffer() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[VideoCommon::Dirty::RenderTargets] = true;
+    }
+
+    void NotifyFrontFace() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::FrontFace] = true;
+    }
+
+    void NotifyCullTest() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::CullTest] = true;
+    }
+
+    void NotifyDepthMask() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::DepthMask] = true;
+    }
+
+    void NotifyDepthTest() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::DepthTest] = true;
+    }
+
+    void NotifyStencilTest() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::StencilTest] = true;
+    }
+
+    void NotifyPolygonOffset() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::PolygonOffset] = true;
+    }
+
+    void NotifyRasterizeEnable() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::RasterizeEnable] = true;
+    }
+
+    void NotifyFramebufferSRGB() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::FramebufferSRGB] = true;
+    }
+
+    void NotifyLogicOp() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::LogicOp] = true;
+    }
+
+    void NotifyClipControl() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::ClipControl] = true;
+    }
+
+    void NotifyAlphaTest() {
+        auto& flags = system.GPU().Maxwell3D().dirty.flags;
+        flags[OpenGL::Dirty::AlphaTest] = true;
+    }
+
+private:
+    Core::System& system;
+
+    GLuint index_buffer = 0;
+};
+
+} // namespace OpenGL