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authorLioncash <mathew1800@gmail.com>2019-10-15 21:03:41 +0200
committerLioncash <mathew1800@gmail.com>2019-10-15 21:40:00 +0200
commit524eb15513f54051c4109a21486d6961a1d8bb6f (patch)
tree40a42e87831155eceba86ef935a9ad9d9bbce92e /src/video_core/texture_cache
parentMerge pull request #2965 from FernandoS27/fair-core-timing (diff)
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Diffstat (limited to 'src/video_core/texture_cache')
-rw-r--r--src/video_core/texture_cache/texture_cache.h135
1 files changed, 78 insertions, 57 deletions
diff --git a/src/video_core/texture_cache/texture_cache.h b/src/video_core/texture_cache/texture_cache.h
index ca2da8f97..8caa041be 100644
--- a/src/video_core/texture_cache/texture_cache.h
+++ b/src/video_core/texture_cache/texture_cache.h
@@ -62,10 +62,10 @@ public:
}
}
- /***
- * `Guard` guarantees that rendertargets don't unregister themselves if the
+ /**
+ * Guarantees that rendertargets don't unregister themselves if the
* collide. Protection is currently only done on 3D slices.
- ***/
+ */
void GuardRenderTargets(bool new_guard) {
guard_render_targets = new_guard;
}
@@ -287,7 +287,7 @@ protected:
const Tegra::Engines::Fermi2D::Config& copy_config) = 0;
// Depending on the backend, a buffer copy can be slow as it means deoptimizing the texture
- // and reading it from a sepparate buffer.
+ // and reading it from a separate buffer.
virtual void BufferCopy(TSurface& src_surface, TSurface& dst_surface) = 0;
void ManageRenderTargetUnregister(TSurface& surface) {
@@ -386,12 +386,13 @@ private:
};
/**
- * `PickStrategy` takes care of selecting a proper strategy to deal with a texture recycle.
- * @param overlaps, the overlapping surfaces registered in the cache.
- * @param params, the paremeters on the new surface.
- * @param gpu_addr, the starting address of the new surface.
- * @param untopological, tells the recycler that the texture has no way to match the overlaps
- * due to topological reasons.
+ * Takes care of selecting a proper strategy to deal with a texture recycle.
+ *
+ * @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 untopological Indicates to the recycler that the texture has no way
+ * to match the overlaps due to topological reasons.
**/
RecycleStrategy PickStrategy(std::vector<TSurface>& overlaps, const SurfaceParams& params,
const GPUVAddr gpu_addr, const MatchTopologyResult untopological) {
@@ -419,16 +420,19 @@ private:
}
/**
- * `RecycleSurface` es a method we use to decide what to do with textures we can't resolve in
- *the cache It has 2 implemented strategies: Ignore and Flush. Ignore just unregisters all the
- *overlaps and loads the new texture. Flush, flushes all the overlaps into memory and loads the
- *new surface from that data.
- * @param overlaps, the overlapping surfaces registered in the cache.
- * @param params, the paremeters on the new surface.
- * @param gpu_addr, the starting address of the new surface.
- * @param preserve_contents, tells if the new surface should be loaded from meory or left blank
- * @param untopological, tells the recycler that the texture has no way to match the overlaps
- * due to topological reasons.
+ * Used to decide what to do with textures we can't resolve in the cache It has 2 implemented
+ * strategies: Ignore and Flush.
+ *
+ * - Ignore: Just unregisters all the overlaps and loads the new texture.
+ * - Flush: Flushes all the overlaps into memory and loads the new surface from that data.
+ *
+ * @param overlaps The overlapping surfaces registered in the cache.
+ * @param params The parameters for the new surface.
+ * @param gpu_addr The starting address of the new surface.
+ * @param preserve_contents Indicates that the new surface should be loaded from memory or left
+ * blank.
+ * @param untopological Indicates to the recycler that the texture has no way to match the
+ * overlaps due to topological reasons.
**/
std::pair<TSurface, TView> RecycleSurface(std::vector<TSurface>& overlaps,
const SurfaceParams& params, const GPUVAddr gpu_addr,
@@ -465,10 +469,12 @@ private:
}
/**
- * `RebuildSurface` this method takes a single surface and recreates into another that
- * may differ in format, target or width alingment.
- * @param current_surface, the registered surface in the cache which we want to convert.
- * @param params, the new surface params which we'll use to recreate the surface.
+ * Takes a single surface and recreates into another that may differ in
+ * format, target or width alignment.
+ *
+ * @param current_surface The registered surface in the cache which we want to convert.
+ * @param params The new surface params which we'll use to recreate the surface.
+ * @param is_render Whether or not the surface is a render target.
**/
std::pair<TSurface, TView> RebuildSurface(TSurface current_surface, const SurfaceParams& params,
bool is_render) {
@@ -502,12 +508,14 @@ private:
}
/**
- * `ManageStructuralMatch` this method takes a single surface and checks with the new surface's
- * params if it's an exact match, we return the main view of the registered surface. If it's
- * formats don't match, we rebuild the surface. We call this last method a `Mirage`. If formats
+ * Takes a single surface and checks with the new surface's params if it's an exact
+ * match, we return the main view of the registered surface. If its formats don't
+ * match, we rebuild the surface. We call this last method a `Mirage`. If formats
* match but the targets don't, we create an overview View of the registered surface.
- * @param current_surface, the registered surface in the cache which we want to convert.
- * @param params, the new surface params which we want to check.
+ *
+ * @param current_surface The registered surface in the cache which we want to convert.
+ * @param params The new surface params which we want to check.
+ * @param is_render Whether or not the surface is a render target.
**/
std::pair<TSurface, TView> ManageStructuralMatch(TSurface current_surface,
const SurfaceParams& params, bool is_render) {
@@ -529,13 +537,14 @@ private:
}
/**
- * `TryReconstructSurface` unlike `RebuildSurface` where we know the registered surface
- * matches the candidate in some way, we got no guarantess here. We try to see if the overlaps
- * are sublayers/mipmaps of the new surface, if they all match we end up recreating a surface
- * for them, else we return nothing.
- * @param overlaps, the overlapping surfaces registered in the cache.
- * @param params, the paremeters on the new surface.
- * @param gpu_addr, the starting address of the new surface.
+ * Unlike RebuildSurface where we know whether or not registered surfaces match the candidate
+ * in some way, we have no guarantees here. We try to see if the overlaps are sublayers/mipmaps
+ * of the new surface, if they all match we end up recreating a surface for them,
+ * else we return nothing.
+ *
+ * @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.
**/
std::optional<std::pair<TSurface, TView>> TryReconstructSurface(std::vector<TSurface>& overlaps,
const SurfaceParams& params,
@@ -584,19 +593,27 @@ private:
}
/**
- * `GetSurface` 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. The first is to
- * check the 1st Level Cache in order to find an exact match, if we fail, we move to step 2.
- * Step 2 is checking if there are any overlaps at all, if none, we just load the texture from
- * memory else we move to step 3. Step 3 consists on figuring the relationship between the
- * candidate texture and the overlaps. We divide the scenarios depending if there's 1 or many
- * overlaps. If there's many, we just try to reconstruct a new surface out of them based on the
- * candidate's parameters, if we fail, we recycle. When there's only 1 overlap then we have to
- * check if the candidate is a view (layer/mipmap) of the overlap or if the registered surface
- * is a mipmap/layer of the candidate. In this last case we reconstruct a new surface.
- * @param gpu_addr, the starting address of the candidate surface.
- * @param params, the paremeters on the candidate surface.
- * @param preserve_contents, tells if the new surface should be loaded from meory or left blank.
+ * 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:
+ *
+ * 1. Check the 1st Level Cache in order to find an exact match, if we fail, we move to step 2.
+ *
+ * 2. Check if there are any overlaps at all, if there are none, we just load the texture from
+ * memory else we move to step 3.
+ *
+ * 3. Consists of figuring out the relationship between the candidate texture and the
+ * overlaps. We divide the scenarios depending if there's 1 or many overlaps. If
+ * there's many, we just try to reconstruct a new surface out of them based on the
+ * candidate's parameters, if we fail, we recycle. When there's only 1 overlap then we
+ * have to check if the candidate is a view (layer/mipmap) of the overlap or if the
+ * registered surface is a mipmap/layer of the candidate. In this last case we reconstruct
+ * a new surface.
+ *
+ * @param gpu_addr The starting address of the candidate surface.
+ * @param params The parameters on the candidate surface.
+ * @param preserve_contents Indicates that the new surface should be loaded from memory or
+ * left blank.
+ * @param is_render Whether or not the surface is a render target.
**/
std::pair<TSurface, TView> GetSurface(const GPUVAddr gpu_addr, const SurfaceParams& params,
bool preserve_contents, bool is_render) {
@@ -651,7 +668,7 @@ private:
// Step 3
// Now we need to figure the relationship between the texture and its overlaps
// we do a topological test to ensure we can find some relationship. If it fails
- // inmediatly recycle the texture
+ // immediately recycle the texture
for (const auto& surface : overlaps) {
const auto topological_result = surface->MatchesTopology(params);
if (topological_result != MatchTopologyResult::FullMatch) {
@@ -720,12 +737,13 @@ private:
}
/**
- * `DeduceSurface` gets the starting address and parameters of a candidate surface and tries
- * to find a matching surface within the cache that's similar to it. If there are many textures
+ * Gets the starting address and parameters of a candidate surface and tries to find a
+ * matching surface within the cache that's similar to it. If there are many textures
* or the texture found if entirely incompatible, it will fail. If no texture is found, the
* blit will be unsuccessful.
- * @param gpu_addr, the starting address of the candidate surface.
- * @param params, the paremeters on the candidate surface.
+ *
+ * @param gpu_addr The starting address of the candidate surface.
+ * @param params The parameters on the candidate surface.
**/
Deduction DeduceSurface(const GPUVAddr gpu_addr, const SurfaceParams& params) {
const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
@@ -777,11 +795,14 @@ private:
}
/**
- * `DeduceBestBlit` gets the a source and destination starting address and parameters,
+ * Gets the a source and destination starting address and parameters,
* and tries to deduce if they are supposed to be depth textures. If so, their
* parameters are modified and fixed into so.
- * @param gpu_addr, the starting address of the candidate surface.
- * @param params, the parameters on the candidate surface.
+ *
+ * @param src_params The parameters of the candidate surface.
+ * @param dst_params The parameters of the destination surface.
+ * @param src_gpu_addr The starting address of the candidate surface.
+ * @param dst_gpu_addr The starting address of the destination surface.
**/
void DeduceBestBlit(SurfaceParams& src_params, SurfaceParams& dst_params,
const GPUVAddr src_gpu_addr, const GPUVAddr dst_gpu_addr) {