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Update src/core/hle/service/nvnflinger/buffer_queue_producer.cpp
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Changed GetBufferHistory to resemble Ryujinx a little bit more in the functionality.
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SDK-Chan 2025-09-14 20:25:59 +02:00 • committed by crueter
parent 881bd82d6e
commit 9464083c72
1 changed files with 31 additions and 9 deletions
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40
src/core/hle/service/nvnflinger/buffer_queue_producer.cpp
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@ -946,22 +946,44 @@ void BufferQueueProducer::Transact(u32 code, std::span<const u8> parcel_data,
case TransactionId::GetBufferHistory: {
LOG_DEBUG(Service_Nvnflinger, "called, transaction=GetBufferHistory");
const s32 requested_value = parcel_in.Read<s32>();
if (requested_value <= 0) {
const s32 request = parcel_in.Read<s32>();
if (request <= 0) {
parcel_out.Write(Status::BadValue);
parcel_out.Write<s32>(0);
break;
}
constexpr s32 buffer_history_size = BufferQueueCore::BUFFER_HISTORY_SIZE ;
const s32 buffer_history_count = (requested_value < buffer_history_size) ?
requested_value : buffer_history_size;
constexpr u32 history_max = BufferQueueCore::BUFFER_HISTORY_SIZE;
std::array<BufferHistoryInfo, history_max> buffer_history_snapshot{};
s32 valid_index{};
{
std::scoped_lock lk(core->mutex);
parcel_out.Write(Status::NoError);
parcel_out.Write<s32>(buffer_history_count);
for (s32 i = 0; i < buffer_history_count; ++i) {
parcel_out.Write(core->buffer_history[i]);
const u32 current_history_pos = core->buffer_history_pos;
u32 index_reversed{};
for (u32 i = 0; i < history_max; ++i) {
// Wrap values backwards e.g. 7, 6, 5, etc. in the range of 0-7
index_reversed = (current_history_pos + history_max - i) % history_max;
const auto& current_history_buffer = core->buffer_history[index_reversed];
// Here we use the frame number as a terminator.
// Because a buffer without frame_number is not considered complete
if (current_history_buffer.frame_number == 0) {
break;
}
buffer_history_snapshot[valid_index] = current_history_buffer;
++valid_index;
}
}
const s32 limit = std::min(request, valid_index);
parcel_out.Write(Status::NoError);
parcel_out.Write<s32>(limit);
for (s32 i = 0; i < limit; ++i) {
parcel_out.Write(buffer_history_snapshot[i]);
}
break;
}
default: