rasterizer_accelerated: Add intermediary for GPU rasterizers

Add an intermediary class that implements common functions across GPU
accelerated rasterizers. This avoids code repetition on different
backends.

src/video_core/CMakeLists.txt

@@ -36,6 +36,8 @@ add_library(video_core STATIC
     memory_manager.h
     morton.cpp
     morton.h
+    rasterizer_accelerated.cpp
+    rasterizer_accelerated.h
     rasterizer_cache.cpp
     rasterizer_cache.h
     rasterizer_interface.h

src/video_core/rasterizer_accelerated.cpp

@@ -0,0 +1,63 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <mutex>
+
+#include <boost/icl/interval_map.hpp>
+
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "core/memory.h"
+#include "video_core/rasterizer_accelerated.h"
+
+namespace VideoCore {
+
+namespace {
+
+template <typename Map, typename Interval>
+constexpr auto RangeFromInterval(Map& map, const Interval& interval) {
+    return boost::make_iterator_range(map.equal_range(interval));
+}
+
+} // Anonymous namespace
+
+RasterizerAccelerated::RasterizerAccelerated() = default;
+
+RasterizerAccelerated::~RasterizerAccelerated() = default;
+
+void RasterizerAccelerated::UpdatePagesCachedCount(VAddr addr, u64 size, int delta) {
+    std::lock_guard lock{pages_mutex};
+    const u64 page_start{addr >> Memory::PAGE_BITS};
+    const u64 page_end{(addr + size + Memory::PAGE_SIZE - 1) >> Memory::PAGE_BITS};
+
+    // Interval maps will erase segments if count reaches 0, so if delta is negative we have to
+    // subtract after iterating
+    const auto pages_interval = CachedPageMap::interval_type::right_open(page_start, page_end);
+    if (delta > 0) {
+        cached_pages.add({pages_interval, delta});
+    }
+
+    for (const auto& pair : RangeFromInterval(cached_pages, pages_interval)) {
+        const auto interval = pair.first & pages_interval;
+        const int count = pair.second;
+
+        const VAddr interval_start_addr = boost::icl::first(interval) << Memory::PAGE_BITS;
+        const VAddr interval_end_addr = boost::icl::last_next(interval) << Memory::PAGE_BITS;
+        const u64 interval_size = interval_end_addr - interval_start_addr;
+
+        if (delta > 0 && count == delta) {
+            Memory::RasterizerMarkRegionCached(interval_start_addr, interval_size, true);
+        } else if (delta < 0 && count == -delta) {
+            Memory::RasterizerMarkRegionCached(interval_start_addr, interval_size, false);
+        } else {
+            ASSERT(count >= 0);
+        }
+    }
+
+    if (delta < 0) {
+        cached_pages.add({pages_interval, delta});
+    }
+}
+
+} // namespace VideoCore

src/video_core/rasterizer_accelerated.h

@@ -0,0 +1,31 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <mutex>
+
+#include <boost/icl/interval_map.hpp>
+
+#include "common/common_types.h"
+#include "video_core/rasterizer_interface.h"
+
+namespace VideoCore {
+
+/// Implements the shared part in GPU accelerated rasterizers in RasterizerInterface.
+class RasterizerAccelerated : public RasterizerInterface {
+public:
+    explicit RasterizerAccelerated();
+    ~RasterizerAccelerated() override;
+
+    void UpdatePagesCachedCount(VAddr addr, u64 size, int delta) override;
+
+private:
+    using CachedPageMap = boost::icl::interval_map<u64, int>;
+    CachedPageMap cached_pages;
+
+    std::mutex pages_mutex;
+};
+
+} // namespace VideoCore

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -342,42 +342,6 @@ std::size_t RasterizerOpenGL::CalculateIndexBufferSize() const {
            static_cast<std::size_t>(regs.index_array.FormatSizeInBytes());
 }
 
-template <typename Map, typename Interval>
-static constexpr auto RangeFromInterval(Map& map, const Interval& interval) {
-    return boost::make_iterator_range(map.equal_range(interval));
-}
-
-void RasterizerOpenGL::UpdatePagesCachedCount(VAddr addr, u64 size, int delta) {
-    std::lock_guard lock{pages_mutex};
-    const u64 page_start{addr >> Memory::PAGE_BITS};
-    const u64 page_end{(addr + size + Memory::PAGE_SIZE - 1) >> Memory::PAGE_BITS};
-
-    // Interval maps will erase segments if count reaches 0, so if delta is negative we have to
-    // subtract after iterating
-    const auto pages_interval = CachedPageMap::interval_type::right_open(page_start, page_end);
-    if (delta > 0)
-        cached_pages.add({pages_interval, delta});
-
-    for (const auto& pair : RangeFromInterval(cached_pages, pages_interval)) {
-        const auto interval = pair.first & pages_interval;
-        const int count = pair.second;
-
-        const VAddr interval_start_addr = boost::icl::first(interval) << Memory::PAGE_BITS;
-        const VAddr interval_end_addr = boost::icl::last_next(interval) << Memory::PAGE_BITS;
-        const u64 interval_size = interval_end_addr - interval_start_addr;
-
-        if (delta > 0 && count == delta)
-            Memory::RasterizerMarkRegionCached(interval_start_addr, interval_size, true);
-        else if (delta < 0 && count == -delta)
-            Memory::RasterizerMarkRegionCached(interval_start_addr, interval_size, false);
-        else
-            ASSERT(count >= 0);
-    }
-
-    if (delta < 0)
-        cached_pages.add({pages_interval, delta});
-}
-
 void RasterizerOpenGL::LoadDiskResources(const std::atomic_bool& stop_loading,
                                          const VideoCore::DiskResourceLoadCallback& callback) {
     shader_cache.LoadDiskCache(stop_loading, callback);

src/video_core/renderer_opengl/gl_rasterizer.h

@@ -9,17 +9,16 @@
 #include <cstddef>
 #include <map>
 #include <memory>
-#include <mutex>
 #include <optional>
 #include <tuple>
 #include <utility>
 
-#include <boost/icl/interval_map.hpp>
 #include <glad/glad.h>
 
 #include "common/common_types.h"
 #include "video_core/engines/const_buffer_info.h"
 #include "video_core/engines/maxwell_3d.h"
+#include "video_core/rasterizer_accelerated.h"
 #include "video_core/rasterizer_cache.h"
 #include "video_core/rasterizer_interface.h"
 #include "video_core/renderer_opengl/gl_buffer_cache.h"
@@ -52,7 +51,7 @@ namespace OpenGL {
 struct ScreenInfo;
 struct DrawParameters;
 
-class RasterizerOpenGL : public VideoCore::RasterizerInterface {
+class RasterizerOpenGL : public VideoCore::RasterizerAccelerated {
 public:
     explicit RasterizerOpenGL(Core::System& system, Core::Frontend::EmuWindow& emu_window,
                               ScreenInfo& info);
@@ -73,7 +72,6 @@ public:
                                const Tegra::Engines::Fermi2D::Config& copy_config) override;
     bool AccelerateDisplay(const Tegra::FramebufferConfig& config, VAddr framebuffer_addr,
                            u32 pixel_stride) override;
-    void UpdatePagesCachedCount(VAddr addr, u64 size, int delta) override;
     void LoadDiskResources(const std::atomic_bool& stop_loading,
                            const VideoCore::DiskResourceLoadCallback& callback) override;
 
@@ -228,11 +226,6 @@ private:
     AccelDraw accelerate_draw = AccelDraw::Disabled;
 
     OGLFramebuffer clear_framebuffer;
-
-    using CachedPageMap = boost::icl::interval_map<u64, int>;
-    CachedPageMap cached_pages;
-
-    std::mutex pages_mutex;
 };
 
 } // namespace OpenGL