diff --git a/src/video_core/texture_cache/surface_params.cpp b/src/video_core/texture_cache/surface_params.cpp
index 858e17e085..a4f1edd9ab 100644
--- a/src/video_core/texture_cache/surface_params.cpp
+++ b/src/video_core/texture_cache/surface_params.cpp
@@ -246,6 +246,16 @@ SurfaceParams SurfaceParams::CreateForFermiCopySurface(
return params;
}
+VideoCore::Surface::SurfaceTarget SurfaceParams::ExpectedTarget(
+ const VideoCommon::Shader::Sampler& entry) {
+ return TextureTypeToSurfaceTarget(entry.GetType(), entry.IsArray());
+}
+
+VideoCore::Surface::SurfaceTarget SurfaceParams::ExpectedTarget(
+ const VideoCommon::Shader::Image& entry) {
+ return ImageTypeToSurfaceTarget(entry.GetType());
+}
+
bool SurfaceParams::IsLayered() const {
switch (target) {
case SurfaceTarget::Texture1DArray:
diff --git a/src/video_core/texture_cache/surface_params.h b/src/video_core/texture_cache/surface_params.h
index 709aa0dc2a..129817ad32 100644
--- a/src/video_core/texture_cache/surface_params.h
+++ b/src/video_core/texture_cache/surface_params.h
@@ -45,6 +45,14 @@ public:
static SurfaceParams CreateForFermiCopySurface(
const Tegra::Engines::Fermi2D::Regs::Surface& config);
+ /// Obtains the texture target from a shader's sampler entry.
+ static VideoCore::Surface::SurfaceTarget ExpectedTarget(
+ const VideoCommon::Shader::Sampler& entry);
+
+ /// Obtains the texture target from a shader's sampler entry.
+ static VideoCore::Surface::SurfaceTarget ExpectedTarget(
+ const VideoCommon::Shader::Image& entry);
+
std::size_t Hash() const {
return static_cast<std::size_t>(
Common::CityHash64(reinterpret_cast<const char*>(this), sizeof(*this)));
diff --git a/src/video_core/texture_cache/texture_cache.h b/src/video_core/texture_cache/texture_cache.h
index 41309ebeae..02d2e91365 100644
--- a/src/video_core/texture_cache/texture_cache.h
+++ b/src/video_core/texture_cache/texture_cache.h
@@ -95,10 +95,16 @@ public:
std::lock_guard lock{mutex};
const auto gpu_addr{tic.Address()};
if (!gpu_addr) {
- return {};
+ return GetNullSurface(SurfaceParams::ExpectedTarget(entry));
+ }
+
+ const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
+ const auto cache_addr{ToCacheAddr(host_ptr)};
+ if (!cache_addr) {
+ return GetNullSurface(SurfaceParams::ExpectedTarget(entry));
}
const auto params{SurfaceParams::CreateForTexture(format_lookup_table, tic, entry)};
- const auto [surface, view] = GetSurface(gpu_addr, params, true, false);
+ const auto [surface, view] = GetSurface(gpu_addr, cache_addr, params, true, false);
if (guard_samplers) {
sampled_textures.push_back(surface);
}
@@ -110,10 +116,15 @@ public:
std::lock_guard lock{mutex};
const auto gpu_addr{tic.Address()};
if (!gpu_addr) {
- return {};
+ return GetNullSurface(SurfaceParams::ExpectedTarget(entry));
+ }
+ const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
+ const auto cache_addr{ToCacheAddr(host_ptr)};
+ if (!cache_addr) {
+ return GetNullSurface(SurfaceParams::ExpectedTarget(entry));
}
const auto params{SurfaceParams::CreateForImage(format_lookup_table, tic, entry)};
- const auto [surface, view] = GetSurface(gpu_addr, params, true, false);
+ const auto [surface, view] = GetSurface(gpu_addr, cache_addr, params, true, false);
if (guard_samplers) {
sampled_textures.push_back(surface);
}
@@ -143,11 +154,17 @@ public:
SetEmptyDepthBuffer();
return {};
}
+ const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
+ const auto cache_addr{ToCacheAddr(host_ptr)};
+ if (!cache_addr) {
+ SetEmptyDepthBuffer();
+ return {};
+ }
const auto depth_params{SurfaceParams::CreateForDepthBuffer(
system, regs.zeta_width, regs.zeta_height, regs.zeta.format,
regs.zeta.memory_layout.block_width, regs.zeta.memory_layout.block_height,
regs.zeta.memory_layout.block_depth, regs.zeta.memory_layout.type)};
- auto surface_view = GetSurface(gpu_addr, depth_params, preserve_contents, true);
+ auto surface_view = GetSurface(gpu_addr, cache_addr, depth_params, preserve_contents, true);
if (depth_buffer.target)
depth_buffer.target->MarkAsRenderTarget(false, NO_RT);
depth_buffer.target = surface_view.first;
@@ -180,8 +197,16 @@ public:
return {};
}
- auto surface_view = GetSurface(gpu_addr, SurfaceParams::CreateForFramebuffer(system, index),
- preserve_contents, true);
+ const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
+ const auto cache_addr{ToCacheAddr(host_ptr)};
+ if (!cache_addr) {
+ SetEmptyColorBuffer(index);
+ return {};
+ }
+
+ auto surface_view =
+ GetSurface(gpu_addr, cache_addr, SurfaceParams::CreateForFramebuffer(system, index),
+ preserve_contents, true);
if (render_targets[index].target)
render_targets[index].target->MarkAsRenderTarget(false, NO_RT);
render_targets[index].target = surface_view.first;
@@ -230,8 +255,14 @@ public:
const GPUVAddr src_gpu_addr = src_config.Address();
const GPUVAddr dst_gpu_addr = dst_config.Address();
DeduceBestBlit(src_params, dst_params, src_gpu_addr, dst_gpu_addr);
- std::pair<TSurface, TView> dst_surface = GetSurface(dst_gpu_addr, dst_params, true, false);
- std::pair<TSurface, TView> src_surface = GetSurface(src_gpu_addr, src_params, true, false);
+ const auto dst_host_ptr{system.GPU().MemoryManager().GetPointer(dst_gpu_addr)};
+ const auto dst_cache_addr{ToCacheAddr(dst_host_ptr)};
+ const auto src_host_ptr{system.GPU().MemoryManager().GetPointer(src_gpu_addr)};
+ const auto src_cache_addr{ToCacheAddr(src_host_ptr)};
+ std::pair<TSurface, TView> dst_surface =
+ GetSurface(dst_gpu_addr, dst_cache_addr, dst_params, true, false);
+ std::pair<TSurface, TView> src_surface =
+ GetSurface(src_gpu_addr, src_cache_addr, src_params, true, false);
ImageBlit(src_surface.second, dst_surface.second, copy_config);
dst_surface.first->MarkAsModified(true, Tick());
}
@@ -347,13 +378,6 @@ protected:
return new_surface;
}
- std::pair<TSurface, TView> GetFermiSurface(
- const Tegra::Engines::Fermi2D::Regs::Surface& config) {
- SurfaceParams params = SurfaceParams::CreateForFermiCopySurface(config);
- const GPUVAddr gpu_addr = config.Address();
- return GetSurface(gpu_addr, params, true, false);
- }
-
Core::System& system;
private:
@@ -614,22 +638,9 @@ private:
* 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) {
- const auto host_ptr{system.GPU().MemoryManager().GetPointer(gpu_addr)};
- const auto cache_addr{ToCacheAddr(host_ptr)};
-
- // Step 0: guarantee a valid surface
- if (!cache_addr) {
- // Return a null surface if it's invalid
- SurfaceParams new_params = params;
- new_params.width = 1;
- new_params.height = 1;
- new_params.depth = 1;
- new_params.block_height = 0;
- new_params.block_depth = 0;
- return InitializeSurface(gpu_addr, new_params, false);
- }
+ std::pair<TSurface, TView> GetSurface(const GPUVAddr gpu_addr, const CacheAddr cache_addr,
+ const SurfaceParams& params, bool preserve_contents,
+ bool is_render) {
// Step 1
// Check Level 1 Cache for a fast structural match. If candidate surface
@@ -793,6 +804,41 @@ private:
}
}
+ /**
+ * Gets a null surface based on a target texture.
+ * @param target The target of the null surface.
+ */
+ TView GetNullSurface(SurfaceTarget target) {
+ const u32 i_target = static_cast<u32>(target);
+ if (const auto it = invalid_cache.find(i_target); it != invalid_cache.end()) {
+ return it->second->GetMainView();
+ }
+ SurfaceParams params{};
+ params.target = target;
+ params.is_tiled = false;
+ params.srgb_conversion = false;
+ params.is_layered = false;
+ params.block_width = 0;
+ params.block_height = 0;
+ params.block_depth = 0;
+ params.tile_width_spacing = 1;
+ params.width = 1;
+ params.height = 1;
+ params.depth = 1;
+ params.pitch = 4;
+ params.num_levels = 1;
+ params.emulated_levels = 1;
+ params.pixel_format = VideoCore::Surface::PixelFormat::RGBA16F;
+ params.type = VideoCore::Surface::SurfaceType::ColorTexture;
+ auto surface = CreateSurface(0ULL, params);
+ invalid_memory.clear();
+ invalid_memory.resize(surface->GetHostSizeInBytes(), 0U);
+ surface->UploadTexture(invalid_memory);
+ surface->MarkAsModified(false, Tick());
+ invalid_cache.emplace(i_target, surface);
+ return surface->GetMainView();
+ }
+
/**
* 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
@@ -991,6 +1037,11 @@ private:
std::vector<TSurface> sampled_textures;
+ /// This cache stores null surfaces in order to be used as a placeholder
+ /// for invalid texture calls.
+ std::unordered_map<u32, TSurface> invalid_cache;
+ std::vector<u8> invalid_memory;
+
StagingCache staging_cache;
std::recursive_mutex mutex;
};