From a86d7cacc1f56c6e8ff5f046ba7e2477e92d873f Mon Sep 17 00:00:00 2001 From: Henrik Rydgard Date: Fri, 29 Apr 2016 08:50:21 +0200 Subject: Move and rename the MemoryAccesses class to MemoryAccessTracker. --- src/video_core/debug_utils/debug_utils.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'src/video_core/debug_utils') 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& 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 ranges; +}; + } // namespace } // namespace -- cgit v1.2.3