From 376aa94819b7da976adb120136d83980a757d044 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 16 Jun 2021 01:49:19 -0300
Subject: shader: Rename maxwell/program.h to translate_program.h
---
.../frontend/maxwell/translate_program.cpp | 203 +++++++++++++++++++++
1 file changed, 203 insertions(+)
create mode 100644 src/shader_recompiler/frontend/maxwell/translate_program.cpp
(limited to 'src/shader_recompiler/frontend/maxwell/translate_program.cpp')
diff --git a/src/shader_recompiler/frontend/maxwell/translate_program.cpp b/src/shader_recompiler/frontend/maxwell/translate_program.cpp
new file mode 100644
index 0000000000..e52170e3e2
--- /dev/null
+++ b/src/shader_recompiler/frontend/maxwell/translate_program.cpp
@@ -0,0 +1,203 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include <memory>
+#include <ranges>
+#include <vector>
+
+#include "shader_recompiler/exception.h"
+#include "shader_recompiler/frontend/ir/basic_block.h"
+#include "shader_recompiler/frontend/ir/post_order.h"
+#include "shader_recompiler/frontend/maxwell/structured_control_flow.h"
+#include "shader_recompiler/frontend/maxwell/translate/translate.h"
+#include "shader_recompiler/frontend/maxwell/translate_program.h"
+#include "shader_recompiler/ir_opt/passes.h"
+
+namespace Shader::Maxwell {
+namespace {
+IR::BlockList GenerateBlocks(const IR::AbstractSyntaxList& syntax_list) {
+ auto syntax_blocks{syntax_list | std::views::filter([](const auto& node) {
+ return node.type == IR::AbstractSyntaxNode::Type::Block;
+ })};
+ IR::BlockList blocks(std::ranges::distance(syntax_blocks));
+ std::ranges::transform(syntax_blocks, blocks.begin(),
+ [](const IR::AbstractSyntaxNode& node) { return node.data.block; });
+ return blocks;
+}
+
+void RemoveUnreachableBlocks(IR::Program& program) {
+ // Some blocks might be unreachable if a function call exists unconditionally
+ // If this happens the number of blocks and post order blocks will mismatch
+ if (program.blocks.size() == program.post_order_blocks.size()) {
+ return;
+ }
+ const auto begin{program.blocks.begin() + 1};
+ const auto end{program.blocks.end()};
+ const auto pred{[](IR::Block* block) { return block->ImmPredecessors().empty(); }};
+ program.blocks.erase(std::remove_if(begin, end, pred), end);
+}
+
+void CollectInterpolationInfo(Environment& env, IR::Program& program) {
+ if (program.stage != Stage::Fragment) {
+ return;
+ }
+ const ProgramHeader& sph{env.SPH()};
+ for (size_t index = 0; index < program.info.input_generics.size(); ++index) {
+ std::optional<PixelImap> imap;
+ for (const PixelImap value : sph.ps.GenericInputMap(static_cast<u32>(index))) {
+ if (value == PixelImap::Unused) {
+ continue;
+ }
+ if (imap && imap != value) {
+ throw NotImplementedException("Per component interpolation");
+ }
+ imap = value;
+ }
+ if (!imap) {
+ continue;
+ }
+ program.info.input_generics[index].interpolation = [&] {
+ switch (*imap) {
+ case PixelImap::Unused:
+ case PixelImap::Perspective:
+ return Interpolation::Smooth;
+ case PixelImap::Constant:
+ return Interpolation::Flat;
+ case PixelImap::ScreenLinear:
+ return Interpolation::NoPerspective;
+ }
+ throw NotImplementedException("Unknown interpolation {}", *imap);
+ }();
+ }
+}
+
+void AddNVNStorageBuffers(IR::Program& program) {
+ if (!program.info.uses_global_memory) {
+ return;
+ }
+ const u32 driver_cbuf{0};
+ const u32 descriptor_size{0x10};
+ const u32 num_buffers{16};
+ const u32 base{[&] {
+ switch (program.stage) {
+ case Stage::VertexA:
+ case Stage::VertexB:
+ return 0x110u;
+ case Stage::TessellationControl:
+ return 0x210u;
+ case Stage::TessellationEval:
+ return 0x310u;
+ case Stage::Geometry:
+ return 0x410u;
+ case Stage::Fragment:
+ return 0x510u;
+ case Stage::Compute:
+ return 0x310u;
+ }
+ throw InvalidArgument("Invalid stage {}", program.stage);
+ }()};
+ auto& descs{program.info.storage_buffers_descriptors};
+ for (u32 index = 0; index < num_buffers; ++index) {
+ if (!program.info.nvn_buffer_used[index]) {
+ continue;
+ }
+ const u32 offset{base + index * descriptor_size};
+ const auto it{std::ranges::find(descs, offset, &StorageBufferDescriptor::cbuf_offset)};
+ if (it != descs.end()) {
+ it->is_written |= program.info.stores_global_memory;
+ continue;
+ }
+ descs.push_back({
+ .cbuf_index = driver_cbuf,
+ .cbuf_offset = offset,
+ .count = 1,
+ .is_written = program.info.stores_global_memory,
+ });
+ }
+}
+} // Anonymous namespace
+
+IR::Program TranslateProgram(ObjectPool<IR::Inst>& inst_pool, ObjectPool<IR::Block>& block_pool,
+ Environment& env, Flow::CFG& cfg) {
+ IR::Program program;
+ program.syntax_list = BuildASL(inst_pool, block_pool, env, cfg);
+ program.blocks = GenerateBlocks(program.syntax_list);
+ program.post_order_blocks = PostOrder(program.syntax_list.front());
+ program.stage = env.ShaderStage();
+ program.local_memory_size = env.LocalMemorySize();
+ switch (program.stage) {
+ case Stage::TessellationControl: {
+ const ProgramHeader& sph{env.SPH()};
+ program.invocations = sph.common2.threads_per_input_primitive;
+ break;
+ }
+ case Stage::Geometry: {
+ const ProgramHeader& sph{env.SPH()};
+ program.output_topology = sph.common3.output_topology;
+ program.output_vertices = sph.common4.max_output_vertices;
+ program.invocations = sph.common2.threads_per_input_primitive;
+ break;
+ }
+ case Stage::Compute:
+ program.workgroup_size = env.WorkgroupSize();
+ program.shared_memory_size = env.SharedMemorySize();
+ break;
+ default:
+ break;
+ }
+ RemoveUnreachableBlocks(program);
+
+ // Replace instructions before the SSA rewrite
+ Optimization::LowerFp16ToFp32(program);
+
+ Optimization::SsaRewritePass(program);
+
+ Optimization::GlobalMemoryToStorageBufferPass(program);
+ Optimization::TexturePass(env, program);
+
+ Optimization::ConstantPropagationPass(program);
+ Optimization::DeadCodeEliminationPass(program);
+ Optimization::VerificationPass(program);
+ Optimization::CollectShaderInfoPass(env, program);
+ CollectInterpolationInfo(env, program);
+ AddNVNStorageBuffers(program);
+ return program;
+}
+
+IR::Program MergeDualVertexPrograms(IR::Program& vertex_a, IR::Program& vertex_b,
+ Environment& env_vertex_b) {
+ IR::Program result{};
+ Optimization::VertexATransformPass(vertex_a);
+ Optimization::VertexBTransformPass(vertex_b);
+ for (const auto& term : vertex_a.syntax_list) {
+ if (term.type == IR::AbstractSyntaxNode::Type::Return) {
+ continue;
+ }
+ result.syntax_list.push_back(term);
+ }
+ for (const auto& term : vertex_b.syntax_list) {
+ result.syntax_list.push_back(term);
+ }
+ result.blocks = GenerateBlocks(result.syntax_list);
+ result.post_order_blocks = vertex_b.post_order_blocks;
+ for (const auto& block : vertex_a.post_order_blocks) {
+ result.post_order_blocks.push_back(block);
+ }
+ result.stage = Stage::VertexB;
+ result.info = vertex_a.info;
+ result.local_memory_size = std::max(vertex_a.local_memory_size, vertex_b.local_memory_size);
+ for (size_t index = 0; index < 32; ++index) {
+ result.info.input_generics[index].used |= vertex_b.info.input_generics[index].used;
+ result.info.stores_generics[index] |= vertex_b.info.stores_generics[index];
+ }
+ Optimization::JoinTextureInfo(result.info, vertex_b.info);
+ Optimization::JoinStorageInfo(result.info, vertex_b.info);
+ Optimization::DeadCodeEliminationPass(result);
+ Optimization::VerificationPass(result);
+ Optimization::CollectShaderInfoPass(env_vertex_b, result);
+ return result;
+}
+
+} // namespace Shader::Maxwell
--
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