From 6789d88a9c9dd4dd7f62d0a8a6291771499590a6 Mon Sep 17 00:00:00 2001 From: Fernando Sahmkow Date: Sun, 12 Apr 2020 17:06:05 -0400 Subject: [PATCH] Texture Cache: Read current data when flushing a 3D segment. This PR corrects flushing of 3D segments when data of other segments is mixed, this aims to preserve the data in place. --- src/video_core/texture_cache/surface_base.cpp | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/video_core/texture_cache/surface_base.cpp b/src/video_core/texture_cache/surface_base.cpp index 7af0e792c..715f39d0d 100644 --- a/src/video_core/texture_cache/surface_base.cpp +++ b/src/video_core/texture_cache/surface_base.cpp @@ -248,8 +248,14 @@ void SurfaceBaseImpl::FlushBuffer(Tegra::MemoryManager& memory_manager, // Use an extra temporal buffer auto& tmp_buffer = staging_cache.GetBuffer(1); + // Special case for 3D Texture Segments + const bool must_read_current_data = + params.block_depth > 0 && params.target == VideoCore::Surface::SurfaceTarget::Texture2D; tmp_buffer.resize(guest_memory_size); host_ptr = tmp_buffer.data(); + if (must_read_current_data) { + memory_manager.ReadBlockUnsafe(gpu_addr, host_ptr, guest_memory_size); + } if (params.is_tiled) { ASSERT_MSG(params.block_width == 0, "Block width is defined as {}", params.block_width);