From 9764c13d6d2977903f407761b27d847c0056e1c4 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Wed, 30 Dec 2020 02:25:23 -0300 Subject: video_core: Rewrite the texture cache The current texture cache has several points that hurt maintainability and performance. It's easy to break unrelated parts of the cache when doing minor changes. The cache can easily forget valuable information about the cached textures by CPU writes or simply by its normal usage.The current texture cache has several points that hurt maintainability and performance. It's easy to break unrelated parts of the cache when doing minor changes. The cache can easily forget valuable information about the cached textures by CPU writes or simply by its normal usage. This commit aims to address those issues. --- src/video_core/texture_cache/samples_helper.h | 55 +++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 src/video_core/texture_cache/samples_helper.h (limited to 'src/video_core/texture_cache/samples_helper.h') diff --git a/src/video_core/texture_cache/samples_helper.h b/src/video_core/texture_cache/samples_helper.h new file mode 100644 index 000000000..04539a43c --- /dev/null +++ b/src/video_core/texture_cache/samples_helper.h @@ -0,0 +1,55 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include + +#include "common/assert.h" +#include "video_core/textures/texture.h" + +namespace VideoCommon { + +[[nodiscard]] inline std::pair SamplesLog2(int num_samples) { + switch (num_samples) { + case 1: + return {0, 0}; + case 2: + return {1, 0}; + case 4: + return {1, 1}; + case 8: + return {2, 1}; + case 16: + return {2, 2}; + } + UNREACHABLE_MSG("Invalid number of samples={}", num_samples); + return {1, 1}; +} + +[[nodiscard]] inline int NumSamples(Tegra::Texture::MsaaMode msaa_mode) { + using Tegra::Texture::MsaaMode; + switch (msaa_mode) { + case MsaaMode::Msaa1x1: + return 1; + case MsaaMode::Msaa2x1: + case MsaaMode::Msaa2x1_D3D: + return 2; + case MsaaMode::Msaa2x2: + case MsaaMode::Msaa2x2_VC4: + case MsaaMode::Msaa2x2_VC12: + return 4; + case MsaaMode::Msaa4x2: + case MsaaMode::Msaa4x2_D3D: + case MsaaMode::Msaa4x2_VC8: + case MsaaMode::Msaa4x2_VC24: + return 8; + case MsaaMode::Msaa4x4: + return 16; + } + UNREACHABLE_MSG("Invalid MSAA mode={}", static_cast(msaa_mode)); + return 1; +} + +} // namespace VideoCommon -- cgit v1.2.3