From 037ea431ceb93e93274fdcf9fb724819639d04fd Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Sun, 5 Jan 2020 18:36:21 -0400
Subject: Shader_IR: deduce size of indexed samplers
---
src/video_core/shader/decode.cpp | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
(limited to 'src/video_core/shader/decode.cpp')
diff --git a/src/video_core/shader/decode.cpp b/src/video_core/shader/decode.cpp
index 507614d59d..dd2f68a3e9 100644
--- a/src/video_core/shader/decode.cpp
+++ b/src/video_core/shader/decode.cpp
@@ -56,6 +56,29 @@ void DeduceTextureHandlerSize(VideoCore::GuestDriverProfile* gpu_driver,
}
}
+std::optional<u32> TryDeduceSamplerSize(Sampler& sampler_to_deduce,
+ VideoCore::GuestDriverProfile* gpu_driver,
+ std::list<Sampler>& used_samplers) {
+ if (gpu_driver == nullptr) {
+ LOG_CRITICAL(HW_GPU, "GPU Driver profile has not been created yet");
+ return std::nullopt;
+ }
+ const u32 base_offset = sampler_to_deduce.GetOffset();
+ u32 max_offset{UINT_MAX};
+ for (const auto& sampler : used_samplers) {
+ if (sampler.IsBindless()) {
+ continue;
+ }
+ if (sampler.GetOffset() > base_offset) {
+ max_offset = std::min(sampler.GetOffset(), max_offset);
+ }
+ }
+ if (max_offset == UINT_MAX) {
+ return std::nullopt;
+ }
+ return ((max_offset - base_offset) * 4) / gpu_driver->GetTextureHandlerSize();
+}
+
} // Anonymous namespace
class ASTDecoder {
@@ -342,6 +365,19 @@ void ShaderIR::PostDecode() {
// Deduce texture handler size if needed
auto gpu_driver = locker.AccessGuestDriverProfile();
DeduceTextureHandlerSize(gpu_driver, used_samplers);
+ // Deduce Indexed Samplers
+ if (uses_indexed_samplers) {
+ for (auto& sampler : used_samplers) {
+ if (sampler.IsIndexed()) {
+ auto size = TryDeduceSamplerSize(sampler, gpu_driver, used_samplers);
+ if (size) {
+ sampler.SetSize(*size);
+ } else {
+ sampler.SetSize(1);
+ }
+ }
+ }
+ }
}
} // namespace VideoCommon::Shader
--
cgit v1.2.3-70-g09d2