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glasm: Implement stores to gl_ViewportIndex
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2494dbe183
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accad56ee7
@ -23,7 +23,8 @@ std::string_view InterpDecorator(Interpolation interp) {
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}
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} // Anonymous namespace
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EmitContext::EmitContext(IR::Program& program, Bindings& bindings) : info{program.info} {
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EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile& profile_)
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: info{program.info}, profile{profile_} {
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// FIXME: Temporary partial implementation
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u32 cbuf_index{};
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for (const auto& desc : program.info.constant_buffer_descriptors) {
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@ -41,6 +42,7 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings) : info{progra
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if (const size_t num = program.info.storage_buffers_descriptors.size(); num > 0) {
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Add("PARAM c[{}]={{program.local[0..{}]}};", num, num - 1);
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}
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stage = program.stage;
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switch (program.stage) {
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case Stage::VertexA:
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case Stage::VertexB:
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@ -11,10 +11,12 @@
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#include <fmt/format.h>
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#include "shader_recompiler/backend/glasm/reg_alloc.h"
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#include "shader_recompiler/stage.h"
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namespace Shader {
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struct Info;
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}
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struct Profile;
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} // namespace Shader
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namespace Shader::Backend {
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struct Bindings;
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@ -29,7 +31,7 @@ namespace Shader::Backend::GLASM {
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class EmitContext {
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public:
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explicit EmitContext(IR::Program& program, Bindings& bindings);
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explicit EmitContext(IR::Program& program, Bindings& bindings, const Profile& profile_);
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template <typename... Args>
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void Add(const char* format_str, IR::Inst& inst, Args&&... args) {
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@ -55,10 +57,12 @@ public:
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std::string code;
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RegAlloc reg_alloc{*this};
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const Info& info;
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const Profile& profile;
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std::vector<u32> texture_buffer_bindings;
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std::vector<u32> texture_bindings;
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Stage stage{};
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std::string_view stage_name = "invalid";
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};
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@ -261,7 +261,10 @@ void EmitCode(EmitContext& ctx, const IR::Program& program) {
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}
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}
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void SetupOptions(std::string& header, Info info) {
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void SetupOptions(const IR::Program& program, const Profile& profile, std::string& header) {
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const Info& info{program.info};
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const Stage stage{program.stage};
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// TODO: Track the shared atomic ops
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header += "OPTION NV_internal;"
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"OPTION NV_shader_storage_buffer;"
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@ -286,6 +289,11 @@ void SetupOptions(std::string& header, Info info) {
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if (info.uses_sparse_residency) {
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header += "OPTION EXT_sparse_texture2;";
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}
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if ((info.stores_viewport_index || info.stores_layer) && stage != Stage::Geometry) {
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if (profile.support_viewport_index_layer_non_geometry) {
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header += "OPTION NV_viewport_array2;";
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}
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}
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const auto non_zero_frag_colors{info.stores_frag_color | std::views::drop(1)};
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if (std::ranges::find(non_zero_frag_colors, true) != non_zero_frag_colors.end()) {
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header += "OPTION ARB_draw_buffers;";
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@ -312,12 +320,12 @@ std::string_view StageHeader(Stage stage) {
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}
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} // Anonymous namespace
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std::string EmitGLASM(const Profile&, IR::Program& program, Bindings& bindings) {
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EmitContext ctx{program, bindings};
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std::string EmitGLASM(const Profile& profile, IR::Program& program, Bindings& bindings) {
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EmitContext ctx{program, bindings, profile};
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Precolor(ctx, program);
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EmitCode(ctx, program);
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std::string header{StageHeader(program.stage)};
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SetupOptions(header, program.info);
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SetupOptions(program, profile, header);
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switch (program.stage) {
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case Stage::Compute:
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header += fmt::format("GROUP_SIZE {} {} {};", program.workgroup_size[0],
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@ -7,6 +7,7 @@
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#include "shader_recompiler/backend/glasm/emit_context.h"
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#include "shader_recompiler/backend/glasm/emit_glasm_instructions.h"
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#include "shader_recompiler/frontend/ir/value.h"
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#include "shader_recompiler/profile.h"
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namespace Shader::Backend::GLASM {
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namespace {
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@ -102,6 +103,13 @@ void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, ScalarF32 value,
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case IR::Attribute::PositionW:
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ctx.Add("MOV.F result.position.{},{};", swizzle, value);
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break;
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case IR::Attribute::ViewportIndex:
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if (ctx.stage == Stage::Geometry || ctx.profile.support_viewport_index_layer_non_geometry) {
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ctx.Add("MOV.F result.viewport.x,{};", value);
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} else {
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// LOG_WARNING
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}
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break;
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default:
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throw NotImplementedException("Set attribute {}", attr);
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}
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