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Merge pull request #3282 from FernandoS27/indexed-samplers

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Partially implement Indexed samplers in general and specific code in GLSL
This commit is contained in:
bunnei 2020-02-01 20:41:40 -05:00 • committed by GitHub
commit b5bbe7e752
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GPG key ID: 4AEE18F83AFDEB23
24 changed files with 610 additions and 58 deletions
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110
src/video_core/shader/decode/texture.cpp
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@ -144,7 +144,8 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
MetaTexture meta{sampler, {}, depth_compare, aoffi, {}, {}, {}, {}, component, element};
MetaTexture meta{sampler, {}, depth_compare, aoffi, {}, {},
{}, {}, component, element, {}};
values[element] = Operation(OperationCode::TextureGather, meta, std::move(coords_copy));
}
@ -167,9 +168,9 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
const auto derivate_reg = instr.gpr20.Value();
const auto texture_type = instr.txd.texture_type.Value();
const auto coord_count = GetCoordCount(texture_type);
Node index_var{};
const Sampler* sampler =
is_bindless ? GetBindlessSampler(base_reg, {{texture_type, is_array, false}})
is_bindless ? GetBindlessSampler(base_reg, index_var, {{texture_type, is_array, false}})
: GetSampler(instr.sampler, {{texture_type, is_array, false}});
Node4 values;
if (sampler == nullptr) {
@ -200,7 +201,8 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
}
for (u32 element = 0; element < values.size(); ++element) {
MetaTexture meta{*sampler, array_node, {}, {}, {}, derivates, {}, {}, {}, element};
MetaTexture meta{*sampler, array_node, {}, {}, {}, derivates,
{}, {}, {}, element, index_var};
values[element] = Operation(OperationCode::TextureGradient, std::move(meta), coords);
}
@ -215,8 +217,9 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
// TODO: The new commits on the texture refactor, change the way samplers work.
// Sadly, not all texture instructions specify the type of texture their sampler
// uses. This must be fixed at a later instance.
Node index_var{};
const Sampler* sampler =
is_bindless ? GetBindlessSampler(instr.gpr8) : GetSampler(instr.sampler);
is_bindless ? GetBindlessSampler(instr.gpr8, index_var) : GetSampler(instr.sampler);
if (sampler == nullptr) {
u32 indexer = 0;
@ -240,7 +243,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
if (!instr.txq.IsComponentEnabled(element)) {
continue;
}
MetaTexture meta{*sampler, {}, {}, {}, {}, {}, {}, {}, {}, element};
MetaTexture meta{*sampler, {}, {}, {}, {}, {}, {}, {}, {}, element, index_var};
const Node value =
Operation(OperationCode::TextureQueryDimensions, meta,
GetRegister(instr.gpr8.Value() + (is_bindless ? 1 : 0)));
@ -266,8 +269,9 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
auto texture_type = instr.tmml.texture_type.Value();
const bool is_array = instr.tmml.array != 0;
Node index_var{};
const Sampler* sampler =
is_bindless ? GetBindlessSampler(instr.gpr20) : GetSampler(instr.sampler);
is_bindless ? GetBindlessSampler(instr.gpr20, index_var) : GetSampler(instr.sampler);
if (sampler == nullptr) {
u32 indexer = 0;
@ -309,7 +313,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
continue;
}
auto params = coords;
MetaTexture meta{*sampler, {}, {}, {}, {}, {}, {}, {}, {}, element};
MetaTexture meta{*sampler, {}, {}, {}, {}, {}, {}, {}, {}, element, index_var};
const Node value = Operation(OperationCode::TextureQueryLod, meta, std::move(params));
SetTemporary(bb, indexer++, value);
}
@ -383,37 +387,65 @@ const Sampler* ShaderIR::GetSampler(const Tegra::Shader::Sampler& sampler,
// Otherwise create a new mapping for this sampler
const auto next_index = static_cast<u32>(used_samplers.size());
return &used_samplers.emplace_back(next_index, offset, info.type, info.is_array, info.is_shadow,
info.is_buffer);
info.is_buffer, false);
}
const Sampler* ShaderIR::GetBindlessSampler(Tegra::Shader::Register reg,
const Sampler* ShaderIR::GetBindlessSampler(Tegra::Shader::Register reg, Node& index_var,
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);
if (base_sampler == nullptr) {
const auto [base_node, tracked_sampler_info] =
TrackBindlessSampler(sampler_register, global_code, static_cast<s64>(global_code.size()));
ASSERT(base_node != nullptr);
if (base_node == nullptr) {
return nullptr;
}
const auto info = GetSamplerInfo(sampler_info, offset, buffer);
if (const auto bindless_sampler_info =
std::get_if<BindlessSamplerNode>(&*tracked_sampler_info)) {
const u32 buffer = bindless_sampler_info->GetIndex();
const u32 offset = bindless_sampler_info->GetOffset();
const auto info = GetSamplerInfo(sampler_info, offset, buffer);
// If this sampler has already been used, return the existing mapping.
const auto it =
std::find_if(used_samplers.begin(), used_samplers.end(),
[buffer = buffer, offset = offset](const Sampler& entry) {
return entry.GetBuffer() == buffer && entry.GetOffset() == offset;
});
if (it != used_samplers.end()) {
ASSERT(it->IsBindless() && it->GetType() == info.type && it->IsArray() == info.is_array &&
it->IsShadow() == info.is_shadow);
return &*it;
// If this sampler has already been used, return the existing mapping.
const auto it =
std::find_if(used_samplers.begin(), used_samplers.end(),
[buffer = buffer, offset = offset](const Sampler& entry) {
return entry.GetBuffer() == buffer && entry.GetOffset() == offset;
});
if (it != used_samplers.end()) {
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(next_index, offset, buffer, info.type, info.is_array,
info.is_shadow, info.is_buffer, false);
} else if (const auto array_sampler_info =
std::get_if<ArraySamplerNode>(&*tracked_sampler_info)) {
const u32 base_offset = array_sampler_info->GetBaseOffset() / 4;
index_var = GetCustomVariable(array_sampler_info->GetIndexVar());
const auto info = GetSamplerInfo(sampler_info, base_offset);
// If this sampler has already been used, return the existing mapping.
const auto it = std::find_if(
used_samplers.begin(), used_samplers.end(),
[base_offset](const Sampler& entry) { return entry.GetOffset() == base_offset; });
if (it != used_samplers.end()) {
ASSERT(!it->IsBindless() && it->GetType() == info.type &&
it->IsArray() == info.is_array && it->IsShadow() == info.is_shadow &&
it->IsBuffer() == info.is_buffer && it->IsIndexed());
return &*it;
}
uses_indexed_samplers = true;
// Otherwise create a new mapping for this sampler
const auto next_index = static_cast<u32>(used_samplers.size());
return &used_samplers.emplace_back(next_index, base_offset, info.type, info.is_array,
info.is_shadow, info.is_buffer, true);
}
// Otherwise create a new mapping for this sampler
const auto next_index = static_cast<u32>(used_samplers.size());
return &used_samplers.emplace_back(next_index, offset, buffer, info.type, info.is_array,
info.is_shadow, info.is_buffer);
return nullptr;
}
void ShaderIR::WriteTexInstructionFloat(NodeBlock& bb, Instruction instr, const Node4& components) {
@ -499,8 +531,9 @@ Node4 ShaderIR::GetTextureCode(Instruction instr, TextureType texture_type,
"This method is not supported.");
const SamplerInfo info{texture_type, is_array, is_shadow, false};
const Sampler* sampler =
is_bindless ? GetBindlessSampler(*bindless_reg, info) : GetSampler(instr.sampler, info);
Node index_var{};
const Sampler* sampler = is_bindless ? GetBindlessSampler(*bindless_reg, index_var, info)
: GetSampler(instr.sampler, info);
Node4 values;
if (sampler == nullptr) {
for (u32 element = 0; element < values.size(); ++element) {
@ -548,7 +581,8 @@ Node4 ShaderIR::GetTextureCode(Instruction instr, TextureType texture_type,
for (u32 element = 0; element < values.size(); ++element) {
auto copy_coords = coords;
MetaTexture meta{*sampler, array, depth_compare, aoffi, {}, {}, bias, lod, {}, element};
MetaTexture meta{*sampler, array, depth_compare, aoffi, {}, {}, bias,
lod, {}, element, index_var};
values[element] = Operation(read_method, meta, std::move(copy_coords));
}
@ -663,7 +697,8 @@ Node4 ShaderIR::GetTld4Code(Instruction instr, TextureType texture_type, bool de
u64 parameter_register = instr.gpr20.Value();
const SamplerInfo info{texture_type, is_array, depth_compare, false};
const Sampler* sampler = is_bindless ? GetBindlessSampler(parameter_register++, info)
Node index_var{};
const Sampler* sampler = is_bindless ? GetBindlessSampler(parameter_register++, index_var, info)
: GetSampler(instr.sampler, info);
Node4 values;
if (sampler == nullptr) {
@ -692,7 +727,8 @@ Node4 ShaderIR::GetTld4Code(Instruction instr, TextureType texture_type, bool de
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
MetaTexture meta{
*sampler, GetRegister(array_register), dc, aoffi, ptp, {}, {}, {}, component, element};
*sampler, GetRegister(array_register), dc, aoffi, ptp, {}, {}, {}, component, element,
index_var};
values[element] = Operation(OperationCode::TextureGather, meta, std::move(coords_copy));
}
@ -725,7 +761,7 @@ Node4 ShaderIR::GetTldCode(Tegra::Shader::Instruction instr) {
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
MetaTexture meta{sampler, array_register, {}, {}, {}, {}, {}, lod, {}, element};
MetaTexture meta{sampler, array_register, {}, {}, {}, {}, {}, lod, {}, element, {}};
values[element] = Operation(OperationCode::TexelFetch, meta, std::move(coords_copy));
}
@ -775,7 +811,7 @@ Node4 ShaderIR::GetTldsCode(Instruction instr, TextureType texture_type, bool is
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
MetaTexture meta{sampler, array, {}, {}, {}, {}, {}, lod, {}, element};
MetaTexture meta{sampler, array, {}, {}, {}, {}, {}, lod, {}, element, {}};
values[element] = Operation(OperationCode::TexelFetch, meta, std::move(coords_copy));
}
return values;