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shader/texture: Deduce texture buffers from locker

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Instead of specializing shaders to separate texture buffers from 1D
textures, use the locker to deduce them while they are being decoded.
This commit is contained in:
ReinUsesLisp
2019-11-06 04:32:43 -03:00
parent c52f37f259
commit 32c1bc6a67
9 changed files with 109 additions and 176 deletions
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102
src/video_core/shader/decode/texture.cpp
View File

@ -128,8 +128,8 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
}
const Node component = Immediate(static_cast<u32>(instr.tld4s.component));
const auto& sampler =
GetSampler(instr.sampler, {{TextureType::Texture2D, false, depth_compare}});
const SamplerInfo info{TextureType::Texture2D, false, depth_compare};
const auto& sampler = GetSampler(instr.sampler, info);
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
@ -149,7 +149,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
// Sadly, not all texture instructions specify the type of texture their sampler
// uses. This must be fixed at a later instance.
const auto& sampler =
is_bindless ? GetBindlessSampler(instr.gpr8, {}) : GetSampler(instr.sampler, {});
is_bindless ? GetBindlessSampler(instr.gpr8) : GetSampler(instr.sampler);
u32 indexer = 0;
switch (instr.txq.query_type) {
@ -185,8 +185,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
auto texture_type = instr.tmml.texture_type.Value();
const bool is_array = instr.tmml.array != 0;
const auto& sampler =
is_bindless ? GetBindlessSampler(instr.gpr20, {{texture_type, is_array, false}})
: GetSampler(instr.sampler, {{texture_type, is_array, false}});
is_bindless ? GetBindlessSampler(instr.gpr20) : GetSampler(instr.sampler);
std::vector<Node> coords;
@ -254,67 +253,50 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
return pc;
}
ShaderIR::SamplerInfo ShaderIR::GetSamplerInfo(std::optional<SamplerInfo> sampler_info, u32 offset,
std::optional<u32> buffer) {
if (sampler_info) {
return *sampler_info;
}
const auto sampler =
buffer ? locker.ObtainBindlessSampler(*buffer, offset) : locker.ObtainBoundSampler(offset);
if (!sampler) {
LOG_WARNING(HW_GPU, "Unknown sampler info");
return SamplerInfo{TextureType::Texture2D, false, false, false};
}
return SamplerInfo{sampler->texture_type, sampler->is_array != 0, sampler->is_shadow != 0,
sampler->is_buffer != 0};
}
const Sampler& ShaderIR::GetSampler(const Tegra::Shader::Sampler& sampler,
std::optional<SamplerInfo> sampler_info) {
const auto offset = static_cast<u32>(sampler.index.Value());
TextureType type;
bool is_array;
bool is_shadow;
if (sampler_info) {
type = sampler_info->type;
is_array = sampler_info->is_array;
is_shadow = sampler_info->is_shadow;
} else if (const auto sampler = locker.ObtainBoundSampler(offset)) {
type = sampler->texture_type.Value();
is_array = sampler->is_array.Value() != 0;
is_shadow = sampler->is_shadow.Value() != 0;
} else {
LOG_WARNING(HW_GPU, "Unknown sampler info");
type = TextureType::Texture2D;
is_array = false;
is_shadow = false;
}
const auto info = GetSamplerInfo(sampler_info, offset);
// If this sampler has already been used, return the existing mapping.
const auto it =
std::find_if(used_samplers.begin(), used_samplers.end(),
[offset](const Sampler& entry) { return entry.GetOffset() == offset; });
if (it != used_samplers.end()) {
ASSERT(!it->IsBindless() && it->GetType() == type && it->IsArray() == is_array &&
it->IsShadow() == is_shadow);
ASSERT(!it->IsBindless() && it->GetType() == info.type && it->IsArray() == info.is_array &&
it->IsShadow() == info.is_shadow && it->IsBuffer() == info.is_buffer);
return *it;
}
// Otherwise create a new mapping for this sampler
const auto next_index = static_cast<u32>(used_samplers.size());
return used_samplers.emplace_back(Sampler(next_index, offset, type, is_array, is_shadow));
return used_samplers.emplace_back(next_index, offset, info.type, info.is_array, info.is_shadow,
info.is_buffer);
}
const Sampler& ShaderIR::GetBindlessSampler(const Tegra::Shader::Register& reg,
const Sampler& ShaderIR::GetBindlessSampler(Tegra::Shader::Register reg,
std::optional<SamplerInfo> sampler_info) {
const Node sampler_register = GetRegister(reg);
const auto [base_sampler, buffer, offset] =
TrackCbuf(sampler_register, global_code, static_cast<s64>(global_code.size()));
ASSERT(base_sampler != nullptr);
TextureType type;
bool is_array;
bool is_shadow;
if (sampler_info) {
type = sampler_info->type;
is_array = sampler_info->is_array;
is_shadow = sampler_info->is_shadow;
} else if (const auto sampler = locker.ObtainBindlessSampler(buffer, offset)) {
type = sampler->texture_type.Value();
is_array = sampler->is_array.Value() != 0;
is_shadow = sampler->is_shadow.Value() != 0;
} else {
LOG_WARNING(HW_GPU, "Unknown sampler info");
type = TextureType::Texture2D;
is_array = false;
is_shadow = false;
}
const auto info = GetSamplerInfo(sampler_info, offset, buffer);
// If this sampler has already been used, return the existing mapping.
const auto it =
@ -323,15 +305,15 @@ const Sampler& ShaderIR::GetBindlessSampler(const Tegra::Shader::Register& reg,
return entry.GetBuffer() == buffer && entry.GetOffset() == offset;
});
if (it != used_samplers.end()) {
ASSERT(it->IsBindless() && it->GetType() == type && it->IsArray() == is_array &&
it->IsShadow() == is_shadow);
ASSERT(it->IsBindless() && it->GetType() == info.type && it->IsArray() == info.is_array &&
it->IsShadow() == info.is_shadow);
return *it;
}
// Otherwise create a new mapping for this sampler
const auto next_index = static_cast<u32>(used_samplers.size());
return used_samplers.emplace_back(
Sampler(next_index, offset, buffer, type, is_array, is_shadow));
return used_samplers.emplace_back(next_index, offset, buffer, info.type, info.is_array,
info.is_shadow, info.is_buffer);
}
void ShaderIR::WriteTexInstructionFloat(NodeBlock& bb, Instruction instr, const Node4& components) {
@ -416,17 +398,16 @@ Node4 ShaderIR::GetTextureCode(Instruction instr, TextureType texture_type,
(texture_type == TextureType::TextureCube && is_array && is_shadow),
"This method is not supported.");
const SamplerInfo info{texture_type, is_array, is_shadow, false};
const auto& sampler =
is_bindless ? GetBindlessSampler(*bindless_reg, {{texture_type, is_array, is_shadow}})
: GetSampler(instr.sampler, {{texture_type, is_array, is_shadow}});
is_bindless ? GetBindlessSampler(*bindless_reg, info) : GetSampler(instr.sampler, info);
const bool lod_needed = process_mode == TextureProcessMode::LZ ||
process_mode == TextureProcessMode::LL ||
process_mode == TextureProcessMode::LLA;
// LOD selection (either via bias or explicit textureLod) not
// supported in GL for sampler2DArrayShadow and
// samplerCubeArrayShadow.
// LOD selection (either via bias or explicit textureLod) not supported in GL for
// sampler2DArrayShadow and samplerCubeArrayShadow.
const bool gl_lod_supported =
!((texture_type == Tegra::Shader::TextureType::Texture2D && is_array && is_shadow) ||
(texture_type == Tegra::Shader::TextureType::TextureCube && is_array && is_shadow));
@ -436,8 +417,8 @@ Node4 ShaderIR::GetTextureCode(Instruction instr, TextureType texture_type,
UNIMPLEMENTED_IF(process_mode != TextureProcessMode::None && !gl_lod_supported);
Node bias = {};
Node lod = {};
Node bias;
Node lod;
if (process_mode != TextureProcessMode::None && gl_lod_supported) {
switch (process_mode) {
case TextureProcessMode::LZ:
@ -573,10 +554,9 @@ Node4 ShaderIR::GetTld4Code(Instruction instr, TextureType texture_type, bool de
u64 parameter_register = instr.gpr20.Value();
const auto& sampler =
is_bindless
? GetBindlessSampler(parameter_register++, {{texture_type, is_array, depth_compare}})
: GetSampler(instr.sampler, {{texture_type, is_array, depth_compare}});
const SamplerInfo info{texture_type, is_array, depth_compare, false};
const auto& sampler = is_bindless ? GetBindlessSampler(parameter_register++, info)
: GetSampler(instr.sampler, info);
std::vector<Node> aoffi;
if (is_aoffi) {
@ -623,7 +603,7 @@ Node4 ShaderIR::GetTldCode(Tegra::Shader::Instruction instr) {
// const Node aoffi_register{is_aoffi ? GetRegister(gpr20_cursor++) : nullptr};
// const Node multisample{is_multisample ? GetRegister(gpr20_cursor++) : nullptr};
const auto& sampler = GetSampler(instr.sampler, {{texture_type, is_array, false}});
const auto& sampler = GetSampler(instr.sampler);
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
@ -659,7 +639,7 @@ Node4 ShaderIR::GetTldsCode(Instruction instr, TextureType texture_type, bool is
// When lod is used always is in gpr20
const Node lod = lod_enabled ? GetRegister(instr.gpr20) : Immediate(0);
const auto& sampler = GetSampler(instr.sampler, {{texture_type, is_array, false}});
const auto& sampler = GetSampler(instr.sampler);
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {

14
src/video_core/shader/node.h
View File

@ -225,14 +225,15 @@ class Sampler {
public:
/// This constructor is for bound samplers
constexpr explicit Sampler(u32 index, u32 offset, Tegra::Shader::TextureType type,
bool is_array, bool is_shadow)
: index{index}, offset{offset}, type{type}, is_array{is_array}, is_shadow{is_shadow} {}
bool is_array, bool is_shadow, bool is_buffer)
: index{index}, offset{offset}, type{type}, is_array{is_array}, is_shadow{is_shadow},
is_buffer{is_buffer} {}
/// This constructor is for bindless samplers
constexpr explicit Sampler(u32 index, u32 offset, u32 buffer, Tegra::Shader::TextureType type,
bool is_array, bool is_shadow)
bool is_array, bool is_shadow, bool is_buffer)
: index{index}, offset{offset}, buffer{buffer}, type{type}, is_array{is_array},
is_shadow{is_shadow}, is_bindless{true} {}
is_shadow{is_shadow}, is_buffer{is_buffer}, is_bindless{true} {}
constexpr u32 GetIndex() const {
return index;
@ -258,6 +259,10 @@ public:
return is_shadow;
}
constexpr bool IsBuffer() const {
return is_buffer;
}
constexpr bool IsBindless() const {
return is_bindless;
}
@ -270,6 +275,7 @@ private:
Tegra::Shader::TextureType type{}; ///< The type used to sample this texture (Texture2D, etc)
bool is_array{}; ///< Whether the texture is being sampled as an array texture or not.
bool is_shadow{}; ///< Whether the texture is being sampled as a depth texture or not.
bool is_buffer{}; ///< Whether the texture is a texture buffer without sampler.
bool is_bindless{}; ///< Whether this sampler belongs to a bindless texture or not.
};

13
src/video_core/shader/shader_ir.h
View File

@ -179,6 +179,7 @@ private:
Tegra::Shader::TextureType type;
bool is_array;
bool is_shadow;
bool is_buffer;
};
void Decode();
@ -303,13 +304,17 @@ private:
/// Returns a predicate combiner operation
OperationCode GetPredicateCombiner(Tegra::Shader::PredOperation operation);
/// Queries the missing sampler info from the execution context.
SamplerInfo GetSamplerInfo(std::optional<SamplerInfo> sampler_info, u32 offset,
std::optional<u32> buffer = std::nullopt);
/// Accesses a texture sampler
const Sampler& GetSampler(const Tegra::Shader::Sampler& sampler,
std::optional<SamplerInfo> sampler_info);
std::optional<SamplerInfo> sampler_info = std::nullopt);
// Accesses a texture sampler for a bindless texture.
const Sampler& GetBindlessSampler(const Tegra::Shader::Register& reg,
std::optional<SamplerInfo> sampler_info);
/// Accesses a texture sampler for a bindless texture.
const Sampler& GetBindlessSampler(Tegra::Shader::Register reg,
std::optional<SamplerInfo> sampler_info = std::nullopt);
/// Accesses an image.
Image& GetImage(Tegra::Shader::Image image, Tegra::Shader::ImageType type);