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authorbunnei <bunneidev@gmail.com>2019-12-22 20:25:13 +0100
committerGitHub <noreply@github.com>2019-12-22 20:25:13 +0100
commit0f3ac9cfeba1d60854dfbbddeb2c0cff21398a87 (patch)
treecf88606abb342c0707e2dbc48bdb7c25c7b34338 /src/video_core
parentMerge pull request #3237 from ReinUsesLisp/vk-shader-decompiler (diff)
parentTexture Cache: Improve documentation (diff)
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Diffstat (limited to 'src/video_core')
-rw-r--r--src/video_core/texture_cache/surface_params.cpp38
-rw-r--r--src/video_core/texture_cache/surface_params.h14
-rw-r--r--src/video_core/texture_cache/texture_cache.h89
-rw-r--r--src/video_core/textures/decoders.h4
4 files changed, 144 insertions, 1 deletions
diff --git a/src/video_core/texture_cache/surface_params.cpp b/src/video_core/texture_cache/surface_params.cpp
index a4f1edd9a..38b3a4ba8 100644
--- a/src/video_core/texture_cache/surface_params.cpp
+++ b/src/video_core/texture_cache/surface_params.cpp
@@ -392,4 +392,42 @@ std::string SurfaceParams::TargetName() const {
}
}
+u32 SurfaceParams::GetBlockSize() const {
+ const u32 x = 64U << block_width;
+ const u32 y = 8U << block_height;
+ const u32 z = 1U << block_depth;
+ return x * y * z;
+}
+
+std::pair<u32, u32> SurfaceParams::GetBlockXY() const {
+ const u32 x_pixels = 64U / GetBytesPerPixel();
+ const u32 x = x_pixels << block_width;
+ const u32 y = 8U << block_height;
+ return {x, y};
+}
+
+std::tuple<u32, u32, u32> SurfaceParams::GetBlockOffsetXYZ(u32 offset) const {
+ const auto div_ceil = [](const u32 x, const u32 y) { return ((x + y - 1) / y); };
+ const u32 block_size = GetBlockSize();
+ const u32 block_index = offset / block_size;
+ const u32 gob_offset = offset % block_size;
+ const u32 gob_index = gob_offset / static_cast<u32>(Tegra::Texture::GetGOBSize());
+ const u32 x_gob_pixels = 64U / GetBytesPerPixel();
+ const u32 x_block_pixels = x_gob_pixels << block_width;
+ const u32 y_block_pixels = 8U << block_height;
+ const u32 z_block_pixels = 1U << block_depth;
+ const u32 x_blocks = div_ceil(width, x_block_pixels);
+ const u32 y_blocks = div_ceil(height, y_block_pixels);
+ const u32 z_blocks = div_ceil(depth, z_block_pixels);
+ const u32 base_x = block_index % x_blocks;
+ const u32 base_y = (block_index / x_blocks) % y_blocks;
+ const u32 base_z = (block_index / (x_blocks * y_blocks)) % z_blocks;
+ u32 x = base_x * x_block_pixels;
+ u32 y = base_y * y_block_pixels;
+ u32 z = base_z * z_block_pixels;
+ z += gob_index >> block_height;
+ y += (gob_index * 8U) % y_block_pixels;
+ return {x, y, z};
+}
+
} // namespace VideoCommon
diff --git a/src/video_core/texture_cache/surface_params.h b/src/video_core/texture_cache/surface_params.h
index 129817ad3..992b5c022 100644
--- a/src/video_core/texture_cache/surface_params.h
+++ b/src/video_core/texture_cache/surface_params.h
@@ -4,6 +4,8 @@
#pragma once
+#include <utility>
+
#include "common/alignment.h"
#include "common/bit_util.h"
#include "common/cityhash.h"
@@ -136,6 +138,15 @@ public:
std::size_t GetConvertedMipmapSize(u32 level) const;
+ /// Get this texture Tegra Block size in guest memory layout
+ u32 GetBlockSize() const;
+
+ /// Get X, Y coordinates max sizes of a single block.
+ std::pair<u32, u32> GetBlockXY() const;
+
+ /// Get the offset in x, y, z coordinates from a memory offset
+ std::tuple<u32, u32, u32> GetBlockOffsetXYZ(u32 offset) const;
+
/// Returns the size of a layer in bytes in guest memory.
std::size_t GetGuestLayerSize() const {
return GetLayerSize(false, false);
@@ -269,7 +280,8 @@ private:
/// Returns the size of all mipmap levels and aligns as needed.
std::size_t GetInnerMemorySize(bool as_host_size, bool layer_only, bool uncompressed) const {
- return GetLayerSize(as_host_size, uncompressed) * (layer_only ? 1U : depth);
+ return GetLayerSize(as_host_size, uncompressed) *
+ (layer_only ? 1U : (is_layered ? depth : 1U));
}
/// Returns the size of a layer
diff --git a/src/video_core/texture_cache/texture_cache.h b/src/video_core/texture_cache/texture_cache.h
index 02d2e9136..f4c015635 100644
--- a/src/video_core/texture_cache/texture_cache.h
+++ b/src/video_core/texture_cache/texture_cache.h
@@ -616,6 +616,86 @@ private:
}
/**
+ * Takes care of managing 3D textures and its slices. Does HLE methods for reconstructing the 3D
+ * textures within the GPU if possible. Falls back to LLE when it isn't possible to use any of
+ * the HLE methods.
+ *
+ * @param overlaps The overlapping surfaces registered in the cache.
+ * @param params The parameters on the new surface.
+ * @param gpu_addr The starting address of the new surface.
+ * @param cache_addr The starting address of the new surface on physical memory.
+ * @param preserve_contents Indicates that the new surface should be loaded from memory or
+ * left blank.
+ */
+ std::optional<std::pair<TSurface, TView>> Manage3DSurfaces(std::vector<TSurface>& overlaps,
+ const SurfaceParams& params,
+ const GPUVAddr gpu_addr,
+ const CacheAddr cache_addr,
+ bool preserve_contents) {
+ if (params.target == SurfaceTarget::Texture3D) {
+ bool failed = false;
+ if (params.num_levels > 1) {
+ // We can't handle mipmaps in 3D textures yet, better fallback to LLE approach
+ return std::nullopt;
+ }
+ TSurface new_surface = GetUncachedSurface(gpu_addr, params);
+ bool modified = false;
+ for (auto& surface : overlaps) {
+ const SurfaceParams& src_params = surface->GetSurfaceParams();
+ if (src_params.target != SurfaceTarget::Texture2D) {
+ failed = true;
+ break;
+ }
+ if (src_params.height != params.height) {
+ failed = true;
+ break;
+ }
+ if (src_params.block_depth != params.block_depth ||
+ src_params.block_height != params.block_height) {
+ failed = true;
+ break;
+ }
+ const u32 offset = static_cast<u32>(surface->GetCacheAddr() - cache_addr);
+ const auto [x, y, z] = params.GetBlockOffsetXYZ(offset);
+ modified |= surface->IsModified();
+ const CopyParams copy_params(0, 0, 0, 0, 0, z, 0, 0, params.width, params.height,
+ 1);
+ ImageCopy(surface, new_surface, copy_params);
+ }
+ if (failed) {
+ return std::nullopt;
+ }
+ for (const auto& surface : overlaps) {
+ Unregister(surface);
+ }
+ new_surface->MarkAsModified(modified, Tick());
+ Register(new_surface);
+ auto view = new_surface->GetMainView();
+ return {{std::move(new_surface), view}};
+ } else {
+ for (const auto& surface : overlaps) {
+ if (!surface->MatchTarget(params.target)) {
+ if (overlaps.size() == 1 && surface->GetCacheAddr() == cache_addr) {
+ if (Settings::values.use_accurate_gpu_emulation) {
+ return std::nullopt;
+ }
+ Unregister(surface);
+ return InitializeSurface(gpu_addr, params, preserve_contents);
+ }
+ return std::nullopt;
+ }
+ if (surface->GetCacheAddr() != cache_addr) {
+ continue;
+ }
+ if (surface->MatchesStructure(params) == MatchStructureResult::FullMatch) {
+ return {{surface, surface->GetMainView()}};
+ }
+ }
+ return InitializeSurface(gpu_addr, params, preserve_contents);
+ }
+ }
+
+ /**
* Gets the starting address and parameters of a candidate surface and tries
* to find a matching surface within the cache. This is done in 3 big steps:
*
@@ -687,6 +767,15 @@ private:
}
}
+ // Check if it's a 3D texture
+ if (params.block_depth > 0) {
+ auto surface =
+ Manage3DSurfaces(overlaps, params, gpu_addr, cache_addr, preserve_contents);
+ if (surface) {
+ return *surface;
+ }
+ }
+
// Split cases between 1 overlap or many.
if (overlaps.size() == 1) {
TSurface current_surface = overlaps[0];
diff --git a/src/video_core/textures/decoders.h b/src/video_core/textures/decoders.h
index f1e3952bc..e5eac3f3b 100644
--- a/src/video_core/textures/decoders.h
+++ b/src/video_core/textures/decoders.h
@@ -12,6 +12,10 @@ namespace Tegra::Texture {
// GOBSize constant. Calculated by 64 bytes in x multiplied by 8 y coords, represents
// an small rect of (64/bytes_per_pixel)X8.
+inline std::size_t GetGOBSize() {
+ return 512;
+}
+
inline std::size_t GetGOBSizeShift() {
return 9;
}