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Merge pull request #4807 from ReinUsesLisp/glasm-robust-ssbo
gl_arb_decompiler: Implement robust buffer operations
This commit is contained in:
commit
536c51912d
@ -376,9 +376,11 @@ private:
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std::string temporary = AllocTemporary();
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std::string address;
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std::string_view opname;
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bool robust = false;
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if (const auto gmem = std::get_if<GmemNode>(&*operation[0])) {
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address = GlobalMemoryPointer(*gmem);
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opname = "ATOM";
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robust = true;
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} else if (const auto smem = std::get_if<SmemNode>(&*operation[0])) {
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address = fmt::format("shared_mem[{}]", Visit(smem->GetAddress()));
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opname = "ATOMS";
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@ -386,7 +388,15 @@ private:
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UNREACHABLE();
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return "{0, 0, 0, 0}";
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}
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if (robust) {
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AddLine("IF NE.x;");
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}
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AddLine("{}.{}.{} {}, {}, {};", opname, op, type, temporary, Visit(operation[1]), address);
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if (robust) {
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AddLine("ELSE;");
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AddLine("MOV.S {}, 0;", temporary);
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AddLine("ENDIF;");
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}
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return temporary;
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}
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@ -980,10 +990,9 @@ void ARBDecompiler::DeclareLocalMemory() {
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}
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void ARBDecompiler::DeclareGlobalMemory() {
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const std::size_t num_entries = ir.GetGlobalMemory().size();
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const size_t num_entries = ir.GetGlobalMemory().size();
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if (num_entries > 0) {
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const std::size_t num_vectors = Common::AlignUp(num_entries, 2) / 2;
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AddLine("PARAM c[{}] = {{ program.local[0..{}] }};", num_vectors, num_vectors - 1);
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AddLine("PARAM c[{}] = {{ program.local[0..{}] }};", num_entries, num_entries - 1);
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}
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}
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@ -1363,7 +1372,8 @@ std::string ARBDecompiler::Visit(const Node& node) {
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if (const auto gmem = std::get_if<GmemNode>(&*node)) {
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std::string temporary = AllocTemporary();
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AddLine("LOAD.U32 {}, {};", temporary, GlobalMemoryPointer(*gmem));
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AddLine("MOV {}, 0;", temporary);
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AddLine("LOAD.U32 {} (NE.x), {};", temporary, GlobalMemoryPointer(*gmem));
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return temporary;
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}
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@ -1441,18 +1451,21 @@ std::string ARBDecompiler::BuildAoffi(Operation operation) {
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}
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std::string ARBDecompiler::GlobalMemoryPointer(const GmemNode& gmem) {
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// Read a bindless SSBO, return its address and set CC accordingly
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// address = c[binding].xy
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// length = c[binding].z
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const u32 binding = global_memory_names.at(gmem.GetDescriptor());
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const char result_swizzle = binding % 2 == 0 ? 'x' : 'y';
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const std::string pointer = AllocLongVectorTemporary();
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std::string temporary = AllocTemporary();
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const u32 local_index = binding / 2;
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AddLine("PK64.U {}, c[{}];", pointer, local_index);
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AddLine("PK64.U {}, c[{}];", pointer, binding);
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AddLine("SUB.U {}, {}, {};", temporary, Visit(gmem.GetRealAddress()),
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Visit(gmem.GetBaseAddress()));
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AddLine("CVT.U64.U32 {}.z, {};", pointer, temporary);
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AddLine("ADD.U64 {}.x, {}.{}, {}.z;", pointer, pointer, result_swizzle, pointer);
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AddLine("ADD.U64 {}.x, {}.x, {}.z;", pointer, pointer, pointer);
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// Compare offset to length and set CC
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AddLine("SLT.U.CC RC.x, {}, c[{}].z;", temporary, binding);
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return fmt::format("{}.x", pointer);
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}
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@ -1552,7 +1565,9 @@ std::string ARBDecompiler::Assign(Operation operation) {
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ResetTemporaries();
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return {};
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} else if (const auto gmem = std::get_if<GmemNode>(&*dest)) {
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AddLine("IF NE.x;");
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AddLine("STORE.U32 {}, {};", Visit(src), GlobalMemoryPointer(*gmem));
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AddLine("ENDIF;");
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ResetTemporaries();
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return {};
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} else {
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@ -139,16 +139,12 @@ void oglEnable(GLenum cap, bool state) {
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(state ? glEnable : glDisable)(cap);
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}
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void UpdateBindlessPointers(GLenum target, GLuint64EXT* pointers, std::size_t num_entries) {
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if (num_entries == 0) {
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void UpdateBindlessSSBOs(GLenum target, const BindlessSSBO* ssbos, size_t num_ssbos) {
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if (num_ssbos == 0) {
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return;
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}
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if (num_entries % 2 == 1) {
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pointers[num_entries] = 0;
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}
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const GLsizei num_vectors = static_cast<GLsizei>((num_entries + 1) / 2);
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glProgramLocalParametersI4uivNV(target, 0, num_vectors,
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reinterpret_cast<const GLuint*>(pointers));
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glProgramLocalParametersI4uivNV(target, 0, static_cast<GLsizei>(num_ssbos),
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reinterpret_cast<const GLuint*>(ssbos));
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}
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} // Anonymous namespace
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@ -900,11 +896,11 @@ bool RasterizerOpenGL::AccelerateDisplay(const Tegra::FramebufferConfig& config,
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}
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void RasterizerOpenGL::SetupDrawConstBuffers(std::size_t stage_index, Shader* shader) {
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static constexpr std::array PARAMETER_LUT = {
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static constexpr std::array PARAMETER_LUT{
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GL_VERTEX_PROGRAM_PARAMETER_BUFFER_NV, GL_TESS_CONTROL_PROGRAM_PARAMETER_BUFFER_NV,
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GL_TESS_EVALUATION_PROGRAM_PARAMETER_BUFFER_NV, GL_GEOMETRY_PROGRAM_PARAMETER_BUFFER_NV,
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GL_FRAGMENT_PROGRAM_PARAMETER_BUFFER_NV};
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GL_FRAGMENT_PROGRAM_PARAMETER_BUFFER_NV,
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};
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MICROPROFILE_SCOPE(OpenGL_UBO);
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const auto& stages = maxwell3d.state.shader_stages;
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const auto& shader_stage = stages[stage_index];
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@ -1007,8 +1003,8 @@ void RasterizerOpenGL::SetupDrawGlobalMemory(std::size_t stage_index, Shader* sh
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const auto& cbufs{maxwell3d.state.shader_stages[stage_index]};
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const auto& entries{shader->GetEntries().global_memory_entries};
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std::array<GLuint64EXT, 32> pointers;
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ASSERT(entries.size() < pointers.size());
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std::array<BindlessSSBO, 32> ssbos;
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ASSERT(entries.size() < ssbos.size());
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const bool assembly_shaders = device.UseAssemblyShaders();
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u32 binding = assembly_shaders ? 0 : device.GetBaseBindings(stage_index).shader_storage_buffer;
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@ -1016,11 +1012,11 @@ void RasterizerOpenGL::SetupDrawGlobalMemory(std::size_t stage_index, Shader* sh
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const GPUVAddr addr{cbufs.const_buffers[entry.cbuf_index].address + entry.cbuf_offset};
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const GPUVAddr gpu_addr{gpu_memory.Read<u64>(addr)};
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const u32 size{gpu_memory.Read<u32>(addr + 8)};
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SetupGlobalMemory(binding, entry, gpu_addr, size, &pointers[binding]);
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SetupGlobalMemory(binding, entry, gpu_addr, size, &ssbos[binding]);
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++binding;
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}
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if (assembly_shaders) {
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UpdateBindlessPointers(TARGET_LUT[stage_index], pointers.data(), entries.size());
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UpdateBindlessSSBOs(TARGET_LUT[stage_index], ssbos.data(), entries.size());
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}
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}
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@ -1028,29 +1024,32 @@ void RasterizerOpenGL::SetupComputeGlobalMemory(Shader* kernel) {
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const auto& cbufs{kepler_compute.launch_description.const_buffer_config};
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const auto& entries{kernel->GetEntries().global_memory_entries};
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std::array<GLuint64EXT, 32> pointers;
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ASSERT(entries.size() < pointers.size());
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std::array<BindlessSSBO, 32> ssbos;
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ASSERT(entries.size() < ssbos.size());
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u32 binding = 0;
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for (const auto& entry : entries) {
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const GPUVAddr addr{cbufs[entry.cbuf_index].Address() + entry.cbuf_offset};
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const GPUVAddr gpu_addr{gpu_memory.Read<u64>(addr)};
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const u32 size{gpu_memory.Read<u32>(addr + 8)};
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SetupGlobalMemory(binding, entry, gpu_addr, size, &pointers[binding]);
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SetupGlobalMemory(binding, entry, gpu_addr, size, &ssbos[binding]);
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++binding;
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}
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if (device.UseAssemblyShaders()) {
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UpdateBindlessPointers(GL_COMPUTE_PROGRAM_NV, pointers.data(), entries.size());
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UpdateBindlessSSBOs(GL_COMPUTE_PROGRAM_NV, ssbos.data(), ssbos.size());
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}
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}
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void RasterizerOpenGL::SetupGlobalMemory(u32 binding, const GlobalMemoryEntry& entry,
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GPUVAddr gpu_addr, std::size_t size,
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GLuint64EXT* pointer) {
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const std::size_t alignment{device.GetShaderStorageBufferAlignment()};
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GPUVAddr gpu_addr, size_t size, BindlessSSBO* ssbo) {
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const size_t alignment{device.GetShaderStorageBufferAlignment()};
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const auto info = buffer_cache.UploadMemory(gpu_addr, size, alignment, entry.is_written);
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if (device.UseAssemblyShaders()) {
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*pointer = info.address + info.offset;
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*ssbo = BindlessSSBO{
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.address = static_cast<GLuint64EXT>(info.address + info.offset),
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.length = static_cast<GLsizei>(size),
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.padding = 0,
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};
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} else {
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glBindBufferRange(GL_SHADER_STORAGE_BUFFER, binding, info.handle, info.offset,
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static_cast<GLsizeiptr>(size));
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@ -53,6 +53,13 @@ namespace OpenGL {
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struct ScreenInfo;
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struct DrawParameters;
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struct BindlessSSBO {
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GLuint64EXT address;
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GLsizei length;
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GLsizei padding;
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};
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static_assert(sizeof(BindlessSSBO) * CHAR_BIT == 128);
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class RasterizerOpenGL : public VideoCore::RasterizerAccelerated {
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public:
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explicit RasterizerOpenGL(Core::Frontend::EmuWindow& emu_window, Tegra::GPU& gpu,
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@ -126,7 +133,7 @@ private:
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/// Configures a global memory buffer.
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void SetupGlobalMemory(u32 binding, const GlobalMemoryEntry& entry, GPUVAddr gpu_addr,
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std::size_t size, GLuint64EXT* pointer);
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size_t size, BindlessSSBO* ssbo);
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/// Configures the current textures to use for the draw command.
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void SetupDrawTextures(std::size_t stage_index, Shader* shader);
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