glsl: Refactor Global memory functions
This commit is contained in:
ameerj
parent
a68fabf6d5
commit
5355568a2d
2 changed files with 76 additions and 74 deletions
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@ -9,11 +9,11 @@
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namespace Shader::Backend::GLSL {
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namespace Shader::Backend::GLSL {
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namespace {
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namespace {
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u32 CbufIndex(u32 offset) {
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u32 CbufIndex(size_t offset) {
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return (offset / 4) % 4;
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return (offset / 4) % 4;
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}
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}
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char OffsetSwizzle(u32 offset) {
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char CbufSwizzle(size_t offset) {
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return "xyzw"[CbufIndex(offset)];
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return "xyzw"[CbufIndex(offset)];
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}
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}
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@ -434,81 +434,82 @@ void EmitContext::DefineHelperFunctions() {
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header += "uint CasMaxS32(uint op_a,uint op_b){return uint(max(int(op_a),int(op_b)));}";
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header += "uint CasMaxS32(uint op_a,uint op_b){return uint(max(int(op_a),int(op_b)));}";
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}
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}
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if (info.uses_global_memory) {
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if (info.uses_global_memory) {
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std::string write_func{"void WriteGlobal32(uint64_t addr,uint data){\n"};
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header += DefineGlobalMemoryFunctions();
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std::string write_func_64{"void WriteGlobal64(uint64_t addr,uvec2 data){\n"};
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std::string write_func_128{"void WriteGlobal128(uint64_t addr,uvec4 data){\n"};
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std::string load_func{"uint LoadGlobal32(uint64_t addr){\n"};
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std::string load_func_64{"uvec2 LoadGlobal64(uint64_t addr){\n"};
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std::string load_func_128{"uvec4 LoadGlobal128(uint64_t addr){\n"};
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const size_t num_buffers{info.storage_buffers_descriptors.size()};
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for (size_t index = 0; index < num_buffers; ++index) {
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if (!info.nvn_buffer_used[index]) {
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continue;
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}
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const auto& ssbo{info.storage_buffers_descriptors[index]};
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const u32 size_cbuf_offset{ssbo.cbuf_offset + 8};
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const auto ssbo_addr{fmt::format("ssbo_addr{}", index)};
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const auto cbuf{fmt::format("{}_cbuf{}", stage_name, ssbo.cbuf_index)};
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const auto cbuf_value{fmt::format(
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"uint64_t {}=packUint2x32(uvec2(ftou({}[{}].{}),ftou({}[{}].{})));", ssbo_addr,
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cbuf, ssbo.cbuf_offset / 16, OffsetSwizzle(ssbo.cbuf_offset), cbuf,
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(ssbo.cbuf_offset + 4) / 16, OffsetSwizzle(ssbo.cbuf_offset + 4))};
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write_func += cbuf_value;
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write_func_64 += cbuf_value;
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write_func_128 += cbuf_value;
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load_func += cbuf_value;
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load_func_64 += cbuf_value;
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load_func_128 += cbuf_value;
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const auto ssbo_size{fmt::format("ftou({}[{}].{}),ftou({}[{}].{})", cbuf,
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size_cbuf_offset / 16, OffsetSwizzle(size_cbuf_offset),
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cbuf, (size_cbuf_offset + 4) / 16,
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OffsetSwizzle(size_cbuf_offset + 4))};
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const auto comparison{fmt::format("if((addr>={})&&(addr<({}+\nuint64_t(uvec2({}))))){{",
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ssbo_addr, ssbo_addr, ssbo_size)};
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write_func += comparison;
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write_func_64 += comparison;
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write_func_128 += comparison;
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load_func += comparison;
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load_func_64 += comparison;
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load_func_128 += comparison;
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const auto ssbo_name{fmt::format("{}_ssbo{}", stage_name, index)};
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write_func += fmt::format("{}[uint(addr-{})>>2]=data;return;}}", ssbo_name, ssbo_addr);
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write_func_64 +=
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fmt::format("{}[uint(addr-{})>>2]=data.x;{}[uint(addr-{}+4)>>2]=data.y;return;}}",
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ssbo_name, ssbo_addr, ssbo_name, ssbo_addr);
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write_func_128 +=
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fmt::format("{}[uint(addr-{})>>2]=data.x;{}[uint(addr-{}+4)>>2]=data.y;{}[uint("
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"addr-{}+8)>>2]=data.z;{}[uint(addr-{}+12)>>2]=data.w;return;}}",
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ssbo_name, ssbo_addr, ssbo_name, ssbo_addr, ssbo_name, ssbo_addr,
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ssbo_name, ssbo_addr);
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load_func += fmt::format("return {}[uint(addr-{})>>2];}}", ssbo_name, ssbo_addr);
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load_func_64 +=
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fmt::format("return uvec2({}[uint(addr-{})>>2],{}[uint(addr-{}+4)>>2]);}}",
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ssbo_name, ssbo_addr, ssbo_name, ssbo_addr);
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load_func_128 += fmt::format("return "
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"uvec4({}[uint(addr-{})>>2],{}[uint(addr-{}+4)>>2],{}["
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"uint(addr-{}+8)>>2],{}[uint(addr-{}+12)>>2]);}}",
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ssbo_name, ssbo_addr, ssbo_name, ssbo_addr, ssbo_name,
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ssbo_addr, ssbo_name, ssbo_addr);
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}
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write_func += "}\n";
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write_func_64 += "}\n";
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write_func_128 += "}\n";
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load_func += "return 0u;}\n";
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load_func_64 += "return uvec2(0);}\n";
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load_func_128 += "return uvec4(0);}\n";
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header += write_func;
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header += write_func_64;
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header += write_func_128;
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header += load_func;
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header += load_func_64;
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header += load_func_128;
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}
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}
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}
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}
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std::string EmitContext::DefineGlobalMemoryFunctions() {
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const auto define_body{[&](std::string& func, size_t index, u32 num_components,
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std::string_view return_statement) {
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const auto& ssbo{info.storage_buffers_descriptors[index]};
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const u32 size_cbuf_offset{ssbo.cbuf_offset + 8};
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const auto ssbo_addr{fmt::format("ssbo_addr{}", index)};
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const auto cbuf{fmt::format("{}_cbuf{}", stage_name, ssbo.cbuf_index)};
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std::array<std::string, 2> addr_xy;
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std::array<std::string, 2> size_xy;
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for (size_t i = 0; i < addr_xy.size(); ++i) {
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const auto addr_loc{ssbo.cbuf_offset + 4 * i};
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const auto size_loc{size_cbuf_offset + 4 * i};
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addr_xy[i] = fmt::format("ftou({}[{}].{})", cbuf, addr_loc / 16, CbufSwizzle(addr_loc));
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size_xy[i] = fmt::format("ftou({}[{}].{})", cbuf, size_loc / 16, CbufSwizzle(size_loc));
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}
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const auto addr_pack{fmt::format("packUint2x32(uvec2({},{}))", addr_xy[0], addr_xy[1])};
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const auto addr_statment{fmt::format("uint64_t {}={};", ssbo_addr, addr_pack)};
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func += addr_statment;
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const auto size_vec{fmt::format("uvec2({},{})", size_xy[0], size_xy[1])};
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const auto comp_lhs{fmt::format("(addr>={})", ssbo_addr)};
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const auto comp_rhs{fmt::format("(addr<({}+uint64_t({})))", ssbo_addr, size_vec)};
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const auto comparison{fmt::format("if({}&&{}){{", comp_lhs, comp_rhs)};
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func += comparison;
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const auto ssbo_name{fmt::format("{}_ssbo{}", stage_name, index)};
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switch (num_components) {
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case 1:
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func += fmt::format(return_statement, ssbo_name, ssbo_addr);
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break;
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case 2:
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func += fmt::format(return_statement, ssbo_name, ssbo_addr, ssbo_name, ssbo_addr);
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break;
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case 4:
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func += fmt::format(return_statement, ssbo_name, ssbo_addr, ssbo_name, ssbo_addr,
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ssbo_name, ssbo_addr, ssbo_name, ssbo_addr);
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break;
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}
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}};
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std::string write_func{"void WriteGlobal32(uint64_t addr,uint data){\n"};
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std::string write_func_64{"void WriteGlobal64(uint64_t addr,uvec2 data){\n"};
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std::string write_func_128{"void WriteGlobal128(uint64_t addr,uvec4 data){\n"};
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std::string load_func{"uint LoadGlobal32(uint64_t addr){\n"};
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std::string load_func_64{"uvec2 LoadGlobal64(uint64_t addr){\n"};
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std::string load_func_128{"uvec4 LoadGlobal128(uint64_t addr){\n"};
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const size_t num_buffers{info.storage_buffers_descriptors.size()};
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for (size_t index = 0; index < num_buffers; ++index) {
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if (!info.nvn_buffer_used[index]) {
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continue;
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}
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define_body(write_func, index, 1, "{}[uint(addr-{})>>2]=data;return;}}");
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define_body(write_func_64, index, 2,
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"{}[uint(addr-{})>>2]=data.x;{}[uint(addr-{}+4)>>2]=data.y;return;}}");
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define_body(write_func_128, index, 4,
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"{}[uint(addr-{})>>2]=data.x;{}[uint(addr-{}+4)>>2]=data.y;{}[uint("
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"addr-{}+8)>>2]=data.z;{}[uint(addr-{}+12)>>2]=data.w;return;}}");
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define_body(load_func, index, 1, "return {}[uint(addr-{})>>2];}}");
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define_body(load_func_64, index, 2,
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"return uvec2({}[uint(addr-{})>>2],{}[uint(addr-{}+4)>>2]);}}");
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define_body(load_func_128, index, 4,
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"return uvec4({}[uint(addr-{})>>2],{}[uint(addr-{}+4)>>2],{}["
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"uint(addr-{}+8)>>2],{}[uint(addr-{}+12)>>2]);}}");
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}
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write_func += "}";
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write_func_64 += "}";
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write_func_128 += "}";
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load_func += "return 0u;}";
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load_func_64 += "return uvec2(0);}";
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load_func_128 += "return uvec4(0);}";
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return write_func + write_func_64 + write_func_128 + load_func + load_func_64 + load_func_128;
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}
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void EmitContext::SetupImages(Bindings& bindings) {
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void EmitContext::SetupImages(Bindings& bindings) {
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image_buffer_bindings.reserve(info.image_buffer_descriptors.size());
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image_buffer_bindings.reserve(info.image_buffer_descriptors.size());
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for (const auto& desc : info.image_buffer_descriptors) {
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for (const auto& desc : info.image_buffer_descriptors) {
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@ -167,6 +167,7 @@ private:
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void DefineStorageBuffers(Bindings& bindings);
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void DefineStorageBuffers(Bindings& bindings);
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void DefineGenericOutput(size_t index, u32 invocations);
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void DefineGenericOutput(size_t index, u32 invocations);
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void DefineHelperFunctions();
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void DefineHelperFunctions();
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std::string DefineGlobalMemoryFunctions();
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void SetupImages(Bindings& bindings);
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void SetupImages(Bindings& bindings);
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};
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};
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