dirty_flags: Deduplicate code between OpenGL and Vulkan

1 files changed, 46 insertions, 0 deletions

diff --git a/src/video_core/dirty_flags.cpp b/src/video_core/dirty_flags.cpp
new file mode 100644
index 000000000..4429f3405
--- /dev/null
+++ b/src/video_core/dirty_flags.cpp
@@ -0,0 +1,46 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <array>
+#include <cstddef>
+
+#include "common/common_types.h"
+#include "video_core/dirty_flags.h"
+
+#define OFF(field_name) MAXWELL3D_REG_INDEX(field_name)
+#define NUM(field_name) (sizeof(::Tegra::Engines::Maxwell3D::Regs::field_name) / sizeof(u32))
+
+namespace VideoCommon::Dirty {
+
+using Tegra::Engines::Maxwell3D;
+
+void SetupCommonOnWriteStores(Tegra::Engines::Maxwell3D::DirtyState::Flags& store) {
+    store[RenderTargets] = true;
+    store[ZetaBuffer] = true;
+    for (std::size_t i = 0; i < Maxwell3D::Regs::NumRenderTargets; ++i) {
+        store[ColorBuffer0 + i] = true;
+    }
+}
+
+void SetupDirtyRenderTargets(Tegra::Engines::Maxwell3D::DirtyState::Tables& tables) {
+    static constexpr std::size_t num_per_rt = NUM(rt[0]);
+    static constexpr std::size_t begin = OFF(rt);
+    static constexpr std::size_t num = num_per_rt * Maxwell3D::Regs::NumRenderTargets;
+    for (std::size_t rt = 0; rt < Maxwell3D::Regs::NumRenderTargets; ++rt) {
+        FillBlock(tables[0], begin + rt * num_per_rt, num_per_rt, ColorBuffer0 + rt);
+    }
+    FillBlock(tables[1], begin, num, RenderTargets);
+
+    static constexpr std::array zeta_flags{ZetaBuffer, RenderTargets};
+    for (std::size_t i = 0; i < std::size(zeta_flags); ++i) {
+        const u8 flag = zeta_flags[i];
+        auto& table = tables[i];
+        table[OFF(zeta_enable)] = flag;
+        table[OFF(zeta_width)] = flag;
+        table[OFF(zeta_height)] = flag;
+        FillBlock(table, OFF(zeta), NUM(zeta), flag);
+    }
+}
+
+} // namespace VideoCommon::Dirty