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Vulkan: Implement a pipeline UID cache

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This stores enough information to recreate the pipeline, including the
shader UIDs, blend/depth/rasterization state, primitive and vertex format.
This commit is contained in:
Stenzek
2016-11-13 18:39:06 +10:00
parent 681294586b
commit aac66a1b61
7 changed files with 227 additions and 40 deletions
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56
Source/Core/VideoBackends/Vulkan/StateTracker.h
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@ -9,6 +9,7 @@
#include <memory>
#include "Common/CommonTypes.h"
#include "Common/LinearDiskCache.h"
#include "VideoBackends/Vulkan/Constants.h"
#include "VideoBackends/Vulkan/ObjectCache.h"
#include "VideoCommon/GeometryShaderGen.h"
@ -111,15 +112,22 @@ public:
bool IsWithinRenderArea(s32 x, s32 y, u32 width, u32 height) const;
private:
bool Initialize();
// Reloads the UID cache, ensuring all pipelines used by the game so far have been created.
void LoadPipelineUIDCache();
// Check that the specified viewport is within the render area.
// If not, ends the render pass if it is a clear render pass.
bool IsViewportWithinRenderArea() const;
bool UpdatePipeline();
bool UpdateDescriptorSet();
void UploadAllConstants();
private:
// Serialized version of PipelineInfo, used when loading/saving the pipeline UID cache.
struct SerializedPipelineUID
{
u64 blend_state_bits;
u32 rasterizer_state_bits;
u32 depth_stencil_state_bits;
PortableVertexDeclaration vertex_decl;
VertexShaderUid vs_uid;
GeometryShaderUid gs_uid;
PixelShaderUid ps_uid;
VkPrimitiveTopology primitive_topology;
};
enum DITRY_FLAG : u32
{
@ -140,6 +148,32 @@ private:
DIRTY_FLAG_ALL_DESCRIPTOR_SETS =
DIRTY_FLAG_VS_UBO | DIRTY_FLAG_GS_UBO | DIRTY_FLAG_PS_SAMPLERS | DIRTY_FLAG_PS_SSBO
};
bool Initialize();
// Appends the specified pipeline info, combined with the UIDs stored in the class.
// The info is here so that we can store variations of a UID, e.g. blend state.
void AppendToPipelineUIDCache(const PipelineInfo& info);
// Precaches a pipeline based on the UID information.
bool PrecachePipelineUID(const SerializedPipelineUID& uid);
// Check that the specified viewport is within the render area.
// If not, ends the render pass if it is a clear render pass.
bool IsViewportWithinRenderArea() const;
// Gets a pipeline state that can be used to draw the alpha pass with constant alpha enabled.
PipelineInfo GetAlphaPassPipelineConfig(const PipelineInfo& info) const;
// Obtains a Vulkan pipeline object for the specified pipeline configuration.
// Also adds this pipeline configuration to the UID cache if it is not present already.
VkPipeline GetPipelineAndCacheUID(const PipelineInfo& info);
bool UpdatePipeline();
bool UpdateDescriptorSet();
void UploadAllConstants();
// Which bindings/state has to be updated before the next draw.
u32 m_dirty_flags = 0;
// input assembly
@ -194,5 +228,11 @@ private:
std::vector<u32> m_cpu_accesses_this_frame;
std::vector<u32> m_scheduled_command_buffer_kicks;
bool m_allow_background_execution = true;
// Draw state cache on disk
// We don't actually use the value field here, instead we generate the shaders from the uid
// on-demand. If all goes well, it should hit the shader and Vulkan pipeline cache, therefore
// loading should be reasonably efficient.
LinearDiskCache<SerializedPipelineUID, u32> m_uid_cache;
};
}