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graphics: draw indexed indirect multi-draws from GPU-read arguments

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nmzik committed 2026-10-22 16:12:20 +02:00
1 parent c513a4a13a
commit 949de19bb0
5 files changed
+48 -32
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src/graphics/host_gpu/renderer/renderDraw.cpp
+16 -14
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@@ -632,10 +632,10 @@ bool RenderExecutor::ConsumeMetadataColorOperation(CommandBuffer& buffer,
}
struct DrawEmitInfo {
int32_t vertex_offset = 0;
uint32_t first_vertex = 0;
uint32_t first_instance = 0;
uint64_t indirect_args = 0;
int32_t vertex_offset = 0;
uint32_t first_vertex = 0;
uint32_t first_instance = 0;
DrawIndirectArgs indirect;
};
struct DrawIndexBufferSource {
@@ -1190,11 +1190,12 @@ void RenderExecutor::ExecutePreparedDraw(uint64_t submit_id, CommandBuffer& buff
vertex_bindings = AcquireVertexBuffers(buffer, state.vertex_info[0]);
index_binding = PrepareIndexBuffer(buffer, index_source);
}
std::pair<Buffer*, uint64_t> indirect {};
if (emit.indirect_args != 0) {
indirect = m_context.GetBufferCache().ObtainBuffer(
emit.indirect_args, sizeof(vk::DrawIndexedIndirectCommand), false);
EXIT_IF((indirect.second & 3u) != 0);
std::pair<Buffer*, uint64_t> args_buffer {};
if (emit.indirect.address != 0) {
const auto size = static_cast<uint64_t>(emit.indirect.count - 1) * emit.indirect.stride +
sizeof(vk::DrawIndexedIndirectCommand);
args_buffer = m_context.GetBufferCache().ObtainBuffer(emit.indirect.address, size, false);
EXIT_IF((args_buffer.second & 3u) != 0);
}
if (draw.IsIndexed()) {
LogDrawPhase(draw.Name(), "CreatePipeline");
@@ -1282,8 +1283,9 @@ void RenderExecutor::ExecutePreparedDraw(uint64_t submit_id, CommandBuffer& buff
}
if (mesh_active) {
vk_buffer.drawMeshTasksEXT(mesh_groups, draw.instance_count, 1);
} else if (indirect.first != nullptr) {
vk_buffer.drawIndexedIndirect(indirect.first->Handle(), indirect.second, 1, 0);
} else if (args_buffer.first != nullptr) {
vk_buffer.drawIndexedIndirect(args_buffer.first->Handle(), args_buffer.second,
emit.indirect.count, emit.indirect.stride);
} else {
EmitDrawPrimitives(ucfg, vk_buffer, draw, emit);
}
@@ -1318,7 +1320,7 @@ bool RenderExecutor::DrawIndex(uint64_t submit_id, CommandBuffer& buffer,
reinterpret_cast<uint64_t>(args.index_addr));
Common::LockGuard lock(m_context.GetMutex());
if (args.index_count == 0 || (args.instance_count == 0 && args.indirect_args == 0)) {
if (args.index_count == 0 || (args.instance_count == 0 && args.indirect.address == 0)) {
return true;
}
@@ -1401,7 +1403,7 @@ bool RenderExecutor::DrawIndex(uint64_t submit_id, CommandBuffer& buffer,
LogDrawStateIfNeeded(buffer, draw, state, args.index_type_and_size,
args.index_addr);
// Only embedded fetches apply Vulkan's offsets; mesh and quad-list draws need CPU counts.
if (args.indirect_args != 0 &&
if (args.indirect.address != 0 &&
(!state.vertex_info[0].fetch_embedded ||
state.vertex_info[0].stage.program->stage == ShaderType::Mesh ||
ucfg.GetPrimType() == Prospero::PrimitiveType::kQuadListLegacy)) {
@@ -1419,7 +1421,7 @@ bool RenderExecutor::DrawIndex(uint64_t submit_id, CommandBuffer& buffer,
const bool native_indirect = indirect && !state.vertex_info[0].fetch_embedded;
emit.vertex_offset = native_indirect ? 0 : vertex_offset + args.base_vertex;
emit.first_instance = native_indirect ? 0 : instance_offset;
emit.indirect_args = args.indirect_args;
emit.indirect = args.indirect;
ExecutePreparedDraw(submit_id, buffer, draw, state, topology, emit, index_source,
primitive_restart);