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buffer_cache: Fix size reductions not having in mind bind sizes 

A buffer binding can change between shaders without changing the
shaders. This lead to outdated bindings on OpenGL.
This commit is contained in:
ReinUsesLisp 2021-06-18 03:22:00 -03:00 committed by ameerj
parent 9e066dcb15
commit 838d7e4ca5
1 changed files with 23 additions and 7 deletions
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26
src/video_core/buffer_cache/buffer_cache.h
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@ -405,8 +405,6 @@ private:
u32 written_compute_texture_buffers = 0;
u32 image_compute_texture_buffers = 0;
std::array<u32, NUM_STAGES> fast_bound_uniform_buffers{};
std::array<u32, 16> uniform_cache_hits{};
std::array<u32, 16> uniform_cache_shots{};
@ -416,6 +414,10 @@ private:
std::conditional_t<HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS, std::array<u32, NUM_STAGES>, Empty>
dirty_uniform_buffers{};
std::conditional_t<IS_OPENGL, std::array<u32, NUM_STAGES>, Empty> fast_bound_uniform_buffers{};
std::conditional_t<HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS,
std::array<std::array<u32, NUM_GRAPHICS_UNIFORM_BUFFERS>, NUM_STAGES>, Empty>
uniform_buffer_binding_sizes{};
std::vector<BufferId> cached_write_buffer_ids;
@ -684,6 +686,7 @@ void BufferCache<P>::SetUniformBuffersState(const std::array<u32, NUM_STAGES>& m
fast_bound_uniform_buffers.fill(0);
}
dirty_uniform_buffers.fill(~u32{0});
uniform_buffer_binding_sizes.fill({});
}
}
enabled_uniform_buffer_masks = mask;
@ -1016,14 +1019,18 @@ void BufferCache<P>::BindHostGraphicsUniformBuffer(size_t stage, u32 index, u32
TouchBuffer(buffer);
const bool use_fast_buffer = binding.buffer_id != NULL_BUFFER_ID &&
size <= uniform_buffer_skip_cache_size &&
!buffer.IsRegionGpuModified(cpu_addr, size);
!buffer.IsRegionGpuModified(cpu_addr, size) && false;
if (use_fast_buffer) {
if constexpr (IS_OPENGL) {
if (runtime.HasFastBufferSubData()) {
// Fast path for Nvidia
if (!HasFastUniformBufferBound(stage, binding_index)) {
const bool should_fast_bind =
!HasFastUniformBufferBound(stage, binding_index) ||
uniform_buffer_binding_sizes[stage][binding_index] != size;
if (should_fast_bind) {
// We only have to bind when the currently bound buffer is not the fast version
fast_bound_uniform_buffers[stage] |= 1U << binding_index;
uniform_buffer_binding_sizes[stage][binding_index] = size;
runtime.BindFastUniformBuffer(stage, binding_index, size);
}
const auto span = ImmediateBufferWithData(cpu_addr, size);
@ -1033,6 +1040,7 @@ void BufferCache<P>::BindHostGraphicsUniformBuffer(size_t stage, u32 index, u32
}
if constexpr (IS_OPENGL) {
fast_bound_uniform_buffers[stage] |= 1U << binding_index;
uniform_buffer_binding_sizes[stage][binding_index] = size;
}
// Stream buffer path to avoid stalling on non-Nvidia drivers or Vulkan
const std::span<u8> span = runtime.BindMappedUniformBuffer(stage, binding_index, size);
@ -1046,9 +1054,13 @@ void BufferCache<P>::BindHostGraphicsUniformBuffer(size_t stage, u32 index, u32
}
++uniform_cache_shots[0];
if (!needs_bind && !HasFastUniformBufferBound(stage, binding_index)) {
// Skip binding if it's not needed and if the bound buffer is not the fast version
// This exists to avoid instances where the fast buffer is bound and a GPU write happens
needs_bind |= HasFastUniformBufferBound(stage, binding_index);
if constexpr (HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS) {
needs_bind |= uniform_buffer_binding_sizes[stage][binding_index] != size;
}
if (!needs_bind) {
return;
}
const u32 offset = buffer.Offset(cpu_addr);
@ -1060,6 +1072,9 @@ void BufferCache<P>::BindHostGraphicsUniformBuffer(size_t stage, u32 index, u32
const bool is_copy_bind = offset != 0 && !runtime.SupportsNonZeroUniformOffset();
dirty_uniform_buffers[stage] |= (is_copy_bind ? 1U : 0U) << index;
}
if constexpr (HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS) {
uniform_buffer_binding_sizes[stage][binding_index] = size;
}
if constexpr (NEEDS_BIND_UNIFORM_INDEX) {
runtime.BindUniformBuffer(stage, binding_index, buffer, offset, size);
} else {
@ -1725,6 +1740,7 @@ template <class P>
void BufferCache<P>::NotifyBufferDeletion() {
if constexpr (HAS_PERSISTENT_UNIFORM_BUFFER_BINDINGS) {
dirty_uniform_buffers.fill(~u32{0});
uniform_buffer_binding_sizes.fill({});
}
auto& flags = maxwell3d.dirty.flags;
flags[Dirty::IndexBuffer] = true;