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Shader_IR: Address Feedback
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parent
b97608ca64
commit
64496f2456
5 changed files with 37 additions and 35 deletions
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@ -3,7 +3,7 @@
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <climits>
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#include <limits>
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#include "video_core/guest_driver.h"
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@ -17,10 +17,9 @@ void GuestDriverProfile::DeduceTextureHandlerSize(std::vector<u32>&& bound_offse
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if (size < 2) {
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return;
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}
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std::sort(bound_offsets.begin(), bound_offsets.end(),
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[](const u32& a, const u32& b) { return a < b; });
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u32 min_val = UINT_MAX;
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for (std::size_t i = 1; i < size; i++) {
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std::sort(bound_offsets.begin(), bound_offsets.end(), std::less{});
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u32 min_val = std::numeric_limits<u32>::max();
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for (std::size_t i = 1; i < size; ++i) {
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if (bound_offsets[i] == bound_offsets[i - 1]) {
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continue;
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}
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@ -12,10 +12,13 @@ namespace VideoCore {
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/**
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* The GuestDriverProfile class is used to learn about the GPU drivers behavior and collect
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* information necessary for impossible to avoid HLE methods like shader tracks.
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* information necessary for impossible to avoid HLE methods like shader tracks as they are
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* Entscheidungsproblems.
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*/
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class GuestDriverProfile {
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public:
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void DeduceTextureHandlerSize(std::vector<u32>&& bound_offsets);
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u32 GetTextureHandlerSize() const {
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return texture_handler_size;
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}
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@ -24,16 +27,14 @@ public:
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return texture_handler_size_deduced;
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}
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void DeduceTextureHandlerSize(std::vector<u32>&& bound_offsets);
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private:
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// Minimum size of texture handler any driver can use.
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static constexpr u32 min_texture_handler_size = 4;
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// This goes with Vulkan and OpenGL standards but Nvidia GPUs can easily
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// use 4 bytes instead. Thus, certain drivers may squish the size.
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static constexpr u32 default_texture_handler_size = 8;
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u32 texture_handler_size{default_texture_handler_size};
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bool texture_handler_size_deduced{};
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u32 texture_handler_size = default_texture_handler_size;
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bool texture_handler_size_deduced = false;
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};
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} // namespace VideoCore
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@ -80,10 +80,12 @@ public:
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virtual void LoadDiskResources(const std::atomic_bool& stop_loading = false,
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const DiskResourceLoadCallback& callback = {}) {}
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/// Grant access to the Guest Driver Profile for recording/obtaining info on the guest driver.
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GuestDriverProfile& AccessGuestDriverProfile() {
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return guest_driver_profile;
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}
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/// Grant access to the Guest Driver Profile for recording/obtaining info on the guest driver.
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const GuestDriverProfile& AccessGuestDriverProfile() const {
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return guest_driver_profile;
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}
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@ -83,7 +83,7 @@ public:
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VideoCore::GuestDriverProfile* AccessGuestDriverProfile() const {
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if (engine) {
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return &(engine->AccessGuestDriverProfile());
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return &engine->AccessGuestDriverProfile();
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}
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return nullptr;
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}
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@ -33,6 +33,29 @@ constexpr bool IsSchedInstruction(u32 offset, u32 main_offset) {
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return (absolute_offset % SchedPeriod) == 0;
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}
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void DeduceTextureHandlerSize(VideoCore::GuestDriverProfile* gpu_driver,
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std::list<Sampler>& used_samplers) {
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if (gpu_driver == nullptr) {
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LOG_CRITICAL(HW_GPU, "GPU Driver profile has not been created yet");
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return;
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}
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if (gpu_driver->TextureHandlerSizeKnown() || used_samplers.size() <= 1) {
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return;
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}
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u32 count{};
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std::vector<u32> bound_offsets;
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for (const auto& sampler : used_samplers) {
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if (sampler.IsBindless()) {
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continue;
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}
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++count;
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bound_offsets.emplace_back(sampler.GetOffset());
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}
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if (count > 1) {
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gpu_driver->DeduceTextureHandlerSize(std::move(bound_offsets));
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}
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}
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} // Anonymous namespace
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class ASTDecoder {
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@ -315,32 +338,9 @@ u32 ShaderIR::DecodeInstr(NodeBlock& bb, u32 pc) {
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return pc + 1;
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}
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void DeduceTextureHandlerSize(VideoCore::GuestDriverProfile* gpu_driver,
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std::list<Sampler>& used_samplers) {
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if (gpu_driver == nullptr) {
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LOG_CRITICAL(HW_GPU, "GPU Driver profile has not been created yet");
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return;
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}
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if (gpu_driver->TextureHandlerSizeKnown() || used_samplers.size() <= 1) {
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return;
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}
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u32 count{};
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std::vector<u32> bound_offsets;
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for (const auto& sampler : used_samplers) {
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if (sampler.IsBindless()) {
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continue;
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}
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count++;
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bound_offsets.emplace_back(sampler.GetOffset());
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}
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if (count > 1) {
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gpu_driver->DeduceTextureHandlerSize(std::move(bound_offsets));
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}
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}
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void ShaderIR::PostDecode() {
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// Deduce texture handler size if needed
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auto* gpu_driver = locker.AccessGuestDriverProfile();
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auto gpu_driver = locker.AccessGuestDriverProfile();
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DeduceTextureHandlerSize(gpu_driver, used_samplers);
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}
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