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-rw-r--r--src/video_core/debug_utils/debug_utils.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/video_core/debug_utils/debug_utils.h b/src/video_core/debug_utils/debug_utils.h
index 7df941619..8338cc857 100644
--- a/src/video_core/debug_utils/debug_utils.h
+++ b/src/video_core/debug_utils/debug_utils.h
@@ -206,6 +206,36 @@ void DumpTexture(const Pica::Regs::TextureConfig& texture_config, u8* data);
void DumpTevStageConfig(const std::array<Pica::Regs::TevStageConfig,6>& stages);
+/**
+ * Used in the vertex loader to merge access records. TODO: Investigate if actually useful.
+ */
+class MemoryAccessTracker {
+ /// Combine overlapping and close ranges
+ void SimplifyRanges() {
+ for (auto it = ranges.begin(); it != ranges.end(); ++it) {
+ // NOTE: We add 32 to the range end address to make sure "close" ranges are combined, too
+ auto it2 = std::next(it);
+ while (it2 != ranges.end() && it->first + it->second + 32 >= it2->first) {
+ it->second = std::max(it->second, it2->first + it2->second - it->first);
+ it2 = ranges.erase(it2);
+ }
+ }
+ }
+
+public:
+ /// Record a particular memory access in the list
+ void AddAccess(u32 paddr, u32 size) {
+ // Create new range or extend existing one
+ ranges[paddr] = std::max(ranges[paddr], size);
+
+ // Simplify ranges...
+ SimplifyRanges();
+ }
+
+ /// Map of accessed ranges (mapping start address to range size)
+ std::map<u32, u32> ranges;
+};
+
} // namespace
} // namespace