shader/node: Unpack bindless texture encoding

Bindless textures were using u64 to pack the buffer and offset from
where they come from. Drop this in favor of separated entries in the
struct.

Remove the usage of std::set in favor of std::list (it's not std::vector
to avoid reference invalidations) for samplers and images.

1 files changed, 24 insertions, 26 deletions

diff --git a/src/video_core/shader/decode/image.cpp b/src/video_core/shader/decode/image.cpp
index b02d2cb952..d2fe4ec5dd 100644
--- a/src/video_core/shader/decode/image.cpp
+++ b/src/video_core/shader/decode/image.cpp
@@ -143,39 +143,37 @@ u32 ShaderIR::DecodeImage(NodeBlock& bb, u32 pc) {
 }
 
 Image& ShaderIR::GetImage(Tegra::Shader::Image image, Tegra::Shader::ImageType type) {
-    const auto offset{static_cast<std::size_t>(image.index.Value())};
-    if (const auto existing_image = TryUseExistingImage(offset, type)) {
-        return *existing_image;
+    const auto offset = static_cast<u32>(image.index.Value());
+
+    const auto it =
+        std::find_if(std::begin(used_images), std::end(used_images),
+                     [offset](const Image& entry) { return entry.GetOffset() == offset; });
+    if (it != std::end(used_images)) {
+        ASSERT(!it->IsBindless() && it->GetType() == it->GetType());
+        return *it;
     }
 
-    const std::size_t next_index{used_images.size()};
-    return used_images.emplace(offset, Image{offset, next_index, type}).first->second;
+    const auto next_index = static_cast<u32>(used_images.size());
+    return used_images.emplace_back(next_index, offset, type);
 }
 
 Image& ShaderIR::GetBindlessImage(Tegra::Shader::Register reg, Tegra::Shader::ImageType type) {
-    const Node image_register{GetRegister(reg)};
-    const auto [base_image, cbuf_index, cbuf_offset]{
-        TrackCbuf(image_register, global_code, static_cast<s64>(global_code.size()))};
-    const auto cbuf_key{(static_cast<u64>(cbuf_index) << 32) | static_cast<u64>(cbuf_offset)};
-
-    if (const auto image = TryUseExistingImage(cbuf_key, type)) {
-        return *image;
-    }
-
-    const std::size_t next_index{used_images.size()};
-    return used_images.emplace(cbuf_key, Image{cbuf_index, cbuf_offset, next_index, type})
-        .first->second;
-}
-
-Image* ShaderIR::TryUseExistingImage(u64 offset, Tegra::Shader::ImageType type) {
-    auto it = used_images.find(offset);
-    if (it == used_images.end()) {
-        return nullptr;
+    const Node image_register = GetRegister(reg);
+    const auto [base_image, buffer, offset] =
+        TrackCbuf(image_register, global_code, static_cast<s64>(global_code.size()));
+
+    const auto it =
+        std::find_if(std::begin(used_images), std::end(used_images),
+                     [buffer = buffer, offset = offset](const Image& entry) {
+                         return entry.GetBuffer() == buffer && entry.GetOffset() == offset;
+                     });
+    if (it != std::end(used_images)) {
+        ASSERT(it->IsBindless() && it->GetType() == it->GetType());
+        return *it;
     }
-    auto& image = it->second;
-    ASSERT(image.GetType() == type);
 
-    return &image;
+    const auto next_index = static_cast<u32>(used_images.size());
+    return used_images.emplace_back(next_index, offset, buffer, type);
 }
 
 } // namespace VideoCommon::Shader