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Code Issues Releases Activity

vk_state_tracker: Fix primitive topology

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State track the current primitive topology with a regular comparison
instead of using dirty flags.

This fixes a bug in dirty flags for this particular state and it also
avoids unnecessary state changes as this property is stored in a
frequently changed bit field.
This commit is contained in:
ReinUsesLisp 2020-08-20 23:07:30 -03:00
parent 3ea3de4ecd
commit aed6011d7c
3 changed files with 14 additions and 13 deletions
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4
src/video_core/renderer_vulkan/vk_rasterizer.cpp
View file

@ -1443,10 +1443,10 @@ void RasterizerVulkan::UpdateFrontFace(Tegra::Engines::Maxwell3D::Regs& regs) {
}
void RasterizerVulkan::UpdatePrimitiveTopology(Tegra::Engines::Maxwell3D::Regs& regs) {
if (!state_tracker.TouchPrimitiveTopology()) {
const Maxwell::PrimitiveTopology primitive_topology = regs.draw.topology.Value();
if (!state_tracker.ChangePrimitiveTopology(primitive_topology)) {
return;
}
const Maxwell::PrimitiveTopology primitive_topology = regs.draw.topology.Value();
scheduler.Record([this, primitive_topology](vk::CommandBuffer cmdbuf) {
cmdbuf.SetPrimitiveTopologyEXT(MaxwellToVK::PrimitiveTopology(device, primitive_topology));
});

7
src/video_core/renderer_vulkan/vk_state_tracker.cpp
View file

@ -42,7 +42,6 @@ Flags MakeInvalidationFlags() {
flags[DepthWriteEnable] = true;
flags[DepthCompareOp] = true;
flags[FrontFace] = true;
flags[PrimitiveTopology] = true;
flags[StencilOp] = true;
flags[StencilTestEnable] = true;
return flags;
@ -112,10 +111,6 @@ void SetupDirtyFrontFace(Tables& tables) {
table[OFF(screen_y_control)] = FrontFace;
}
void SetupDirtyPrimitiveTopology(Tables& tables) {
tables[0][OFF(draw.topology)] = PrimitiveTopology;
}
void SetupDirtyStencilOp(Tables& tables) {
auto& table = tables[0];
table[OFF(stencil_front_op_fail)] = StencilOp;
@ -156,13 +151,13 @@ void StateTracker::Initialize() {
SetupDirtyDepthWriteEnable(tables);
SetupDirtyDepthCompareOp(tables);
SetupDirtyFrontFace(tables);
SetupDirtyPrimitiveTopology(tables);
SetupDirtyStencilOp(tables);
SetupDirtyStencilTestEnable(tables);
}
void StateTracker::InvalidateCommandBufferState() {
system.GPU().Maxwell3D().dirty.flags |= invalidation_flags;
current_topology = INVALID_TOPOLOGY;
}
} // namespace Vulkan

16
src/video_core/renderer_vulkan/vk_state_tracker.h
View file

@ -32,7 +32,6 @@ enum : u8 {
DepthWriteEnable,
DepthCompareOp,
FrontFace,
PrimitiveTopology,
StencilOp,
StencilTestEnable,
@ -43,6 +42,8 @@ static_assert(Last <= std::numeric_limits<u8>::max());
} // namespace Dirty
class StateTracker {
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
public:
explicit StateTracker(Core::System& system);
@ -102,10 +103,6 @@ public:
return Exchange(Dirty::FrontFace, false);
}
bool TouchPrimitiveTopology() {
return Exchange(Dirty::PrimitiveTopology, false);
}
bool TouchStencilOp() {
return Exchange(Dirty::StencilOp, false);
}
@ -114,7 +111,15 @@ public:
return Exchange(Dirty::StencilTestEnable, false);
}
bool ChangePrimitiveTopology(Maxwell::PrimitiveTopology new_topology) {
const bool has_changed = current_topology != new_topology;
current_topology = new_topology;
return has_changed;
}
private:
static constexpr auto INVALID_TOPOLOGY = static_cast<Maxwell::PrimitiveTopology>(~0u);
bool Exchange(std::size_t id, bool new_value) const noexcept {
auto& flags = system.GPU().Maxwell3D().dirty.flags;
const bool is_dirty = flags[id];
@ -124,6 +129,7 @@ private:
Core::System& system;
Tegra::Engines::Maxwell3D::DirtyState::Flags invalidation_flags;
Maxwell::PrimitiveTopology current_topology = INVALID_TOPOLOGY;
};
} // namespace Vulkan