video_core: Reimplement the buffer cache

Reimplement the buffer cache using cached bindings and page level
granularity for modification tracking. This also drops the usage of
shared pointers and virtual functions from the cache.

- Bindings are cached, allowing to skip work when the game changes few
  bits between draws.
- OpenGL Assembly shaders no longer copy when a region has been modified
  from the GPU to emulate constant buffers, instead GL_EXT_memory_object
  is used to alias sub-buffers within the same allocation.
- OpenGL Assembly shaders stream constant buffer data using
  glProgramBufferParametersIuivNV, from NV_parameter_buffer_object. In
  theory this should save one hash table resolve inside the driver
  compared to glBufferSubData.
- A new OpenGL stream buffer is implemented based on fences for drivers
  that are not Nvidia's proprietary, due to their low performance on
  partial glBufferSubData calls synchronized with 3D rendering (that
  some games use a lot).
- Most optimizations are shared between APIs now, allowing Vulkan to
  cache more bindings than before, skipping unnecesarry work.

This commit adds the necessary infrastructure to use Vulkan object from
OpenGL. Overall, it improves performance and fixes some bugs present on
the old cache. There are still some edge cases hit by some games that
harm performance on some vendors, this are planned to be fixed in later
commits.

1 files changed, 22 insertions, 51 deletions

diff --git a/src/video_core/renderer_opengl/gl_rasterizer.h b/src/video_core/renderer_opengl/gl_rasterizer.h
index 82e03e677..31d69a94c 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.h
+++ b/src/video_core/renderer_opengl/gl_rasterizer.h
@@ -30,7 +30,6 @@
 #include "video_core/renderer_opengl/gl_shader_decompiler.h"
 #include "video_core/renderer_opengl/gl_shader_manager.h"
 #include "video_core/renderer_opengl/gl_state_tracker.h"
-#include "video_core/renderer_opengl/gl_stream_buffer.h"
 #include "video_core/renderer_opengl/gl_texture_cache.h"
 #include "video_core/shader/async_shaders.h"
 #include "video_core/textures/texture.h"
@@ -47,6 +46,11 @@ namespace Tegra {
 class MemoryManager;
 }
 
+namespace Vulkan {
+class Device;
+class MemoryAllocator;
+} // namespace Vulkan
+
 namespace OpenGL {
 
 struct ScreenInfo;
@@ -63,6 +67,8 @@ class RasterizerOpenGL : public VideoCore::RasterizerAccelerated {
 public:
     explicit RasterizerOpenGL(Core::Frontend::EmuWindow& emu_window_, Tegra::GPU& gpu_,
                               Core::Memory::Memory& cpu_memory_, const Device& device_,
+                              const Vulkan::Device* vulkan_device,
+                              Vulkan::MemoryAllocator* vulkan_memory_allocator,
                               ScreenInfo& screen_info_, ProgramManager& program_manager_,
                               StateTracker& state_tracker_);
     ~RasterizerOpenGL() override;
@@ -72,6 +78,7 @@ public:
     void DispatchCompute(GPUVAddr code_addr) override;
     void ResetCounter(VideoCore::QueryType type) override;
     void Query(GPUVAddr gpu_addr, VideoCore::QueryType type, std::optional<u64> timestamp) override;
+    void BindGraphicsUniformBuffer(size_t stage, u32 index, GPUVAddr gpu_addr, u32 size) override;
     void FlushAll() override;
     void FlushRegion(VAddr addr, u64 size) override;
     bool MustFlushRegion(VAddr addr, u64 size) override;
@@ -119,27 +126,6 @@ private:
     void BindTextures(const ShaderEntries& entries, GLuint base_texture, GLuint base_image,
                       size_t& image_view_index, size_t& texture_index, size_t& image_index);
 
-    /// Configures the current constbuffers to use for the draw command.
-    void SetupDrawConstBuffers(std::size_t stage_index, Shader* shader);
-
-    /// Configures the current constbuffers to use for the kernel invocation.
-    void SetupComputeConstBuffers(Shader* kernel);
-
-    /// Configures a constant buffer.
-    void SetupConstBuffer(GLenum stage, u32 binding, const Tegra::Engines::ConstBufferInfo& buffer,
-                          const ConstBufferEntry& entry, bool use_unified,
-                          std::size_t unified_offset);
-
-    /// Configures the current global memory entries to use for the draw command.
-    void SetupDrawGlobalMemory(std::size_t stage_index, Shader* shader);
-
-    /// Configures the current global memory entries to use for the kernel invocation.
-    void SetupComputeGlobalMemory(Shader* kernel);
-
-    /// Configures a global memory buffer.
-    void SetupGlobalMemory(u32 binding, const GlobalMemoryEntry& entry, GPUVAddr gpu_addr,
-                           size_t size, BindlessSSBO* ssbo);
-
     /// Configures the current textures to use for the draw command.
     void SetupDrawTextures(const Shader* shader, size_t stage_index);
 
@@ -152,6 +138,9 @@ private:
     /// Configures images in a compute shader.
     void SetupComputeImages(const Shader* shader);
 
+    /// Syncs state to match guest's
+    void SyncState();
+
     /// Syncs the viewport and depth range to match the guest state
     void SyncViewport();
 
@@ -215,6 +204,12 @@ private:
     /// Syncs the framebuffer sRGB state to match the guest state
     void SyncFramebufferSRGB();
 
+    /// Syncs vertex formats to match the guest state
+    void SyncVertexFormats();
+
+    /// Syncs vertex instances to match the guest state
+    void SyncVertexInstances();
+
     /// Syncs transform feedback state to match guest state
     /// @note Only valid on assembly shaders
     void SyncTransformFeedback();
@@ -225,19 +220,7 @@ private:
     /// End a transform feedback
     void EndTransformFeedback();
 
-    std::size_t CalculateVertexArraysSize() const;
-
-    std::size_t CalculateIndexBufferSize() const;
-
-    /// Updates the current vertex format
-    void SetupVertexFormat();
-
-    void SetupVertexBuffer();
-    void SetupVertexInstances();
-
-    GLintptr SetupIndexBuffer();
-
-    void SetupShaders();
+    void SetupShaders(bool is_indexed);
 
     Tegra::GPU& gpu;
     Tegra::Engines::Maxwell3D& maxwell3d;
@@ -249,12 +232,12 @@ private:
     ProgramManager& program_manager;
     StateTracker& state_tracker;
 
-    OGLStreamBuffer stream_buffer;
     TextureCacheRuntime texture_cache_runtime;
     TextureCache texture_cache;
+    BufferCacheRuntime buffer_cache_runtime;
+    BufferCache buffer_cache;
     ShaderCacheOpenGL shader_cache;
     QueryCache query_cache;
-    OGLBufferCache buffer_cache;
     FenceManagerOpenGL fence_manager;
 
     VideoCommon::Shader::AsyncShaders async_shaders;
@@ -262,20 +245,8 @@ private:
     boost::container::static_vector<u32, MAX_IMAGE_VIEWS> image_view_indices;
     std::array<ImageViewId, MAX_IMAGE_VIEWS> image_view_ids;
     boost::container::static_vector<GLuint, MAX_TEXTURES> sampler_handles;
-    std::array<GLuint, MAX_TEXTURES> texture_handles;
-    std::array<GLuint, MAX_IMAGES> image_handles;
-
-    std::array<OGLBuffer, Tegra::Engines::Maxwell3D::Regs::NumTransformFeedbackBuffers>
-        transform_feedback_buffers;
-    std::bitset<Tegra::Engines::Maxwell3D::Regs::NumTransformFeedbackBuffers>
-        enabled_transform_feedback_buffers;
-
-    static constexpr std::size_t NUM_CONSTANT_BUFFERS =
-        Tegra::Engines::Maxwell3D::Regs::MaxConstBuffers *
-        Tegra::Engines::Maxwell3D::Regs::MaxShaderProgram;
-    std::array<GLuint, NUM_CONSTANT_BUFFERS> staging_cbufs{};
-    std::size_t current_cbuf = 0;
-    OGLBuffer unified_uniform_buffer;
+    std::array<GLuint, MAX_TEXTURES> texture_handles{};
+    std::array<GLuint, MAX_IMAGES> image_handles{};
 
     /// Number of commands queued to the OpenGL driver. Resetted on flush.
     std::size_t num_queued_commands = 0;