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-rw-r--r--src/core/hle/service/nvflinger/buffer_queue.cpp41
-rw-r--r--src/core/hle/service/nvflinger/buffer_queue.h1
2 files changed, 33 insertions, 9 deletions
diff --git a/src/core/hle/service/nvflinger/buffer_queue.cpp b/src/core/hle/service/nvflinger/buffer_queue.cpp
index 32b6f4b27..9bcafa5fc 100644
--- a/src/core/hle/service/nvflinger/buffer_queue.cpp
+++ b/src/core/hle/service/nvflinger/buffer_queue.cpp
@@ -28,6 +28,7 @@ void BufferQueue::SetPreallocatedBuffer(u32 slot, const IGBPBuffer& igbp_buffer)
buffer.slot = slot;
buffer.igbp_buffer = igbp_buffer;
buffer.status = Buffer::Status::Free;
+ free_buffers.push_back(slot);
queue.emplace_back(buffer);
buffer_wait_event.writable->Signal();
@@ -35,16 +36,37 @@ void BufferQueue::SetPreallocatedBuffer(u32 slot, const IGBPBuffer& igbp_buffer)
std::optional<std::pair<u32, Service::Nvidia::MultiFence*>> BufferQueue::DequeueBuffer(u32 width,
u32 height) {
- auto itr = std::find_if(queue.begin(), queue.end(), [&](const Buffer& buffer) {
- // Only consider free buffers. Buffers become free once again after they've been Acquired
- // and Released by the compositor, see the NVFlinger::Compose method.
- if (buffer.status != Buffer::Status::Free) {
- return false;
- }
- // Make sure that the parameters match.
- return buffer.igbp_buffer.width == width && buffer.igbp_buffer.height == height;
- });
+ if (free_buffers.empty()) {
+ return {};
+ }
+
+ auto f_itr = free_buffers.begin();
+ auto itr = queue.end();
+
+ while (f_itr != free_buffers.end()) {
+ auto slot = *f_itr;
+ itr = std::find_if(queue.begin(), queue.end(), [&](const Buffer& buffer) {
+ // Only consider free buffers. Buffers become free once again after they've been
+ // Acquired and Released by the compositor, see the NVFlinger::Compose method.
+ if (buffer.status != Buffer::Status::Free) {
+ return false;
+ }
+
+ if (buffer.slot != slot) {
+ return false;
+ }
+
+ // Make sure that the parameters match.
+ return buffer.igbp_buffer.width == width && buffer.igbp_buffer.height == height;
+ });
+
+ if (itr != queue.end()) {
+ free_buffers.erase(f_itr);
+ break;
+ }
+ ++f_itr;
+ }
if (itr == queue.end()) {
return {};
@@ -99,6 +121,7 @@ void BufferQueue::ReleaseBuffer(u32 slot) {
ASSERT(itr != queue.end());
ASSERT(itr->status == Buffer::Status::Acquired);
itr->status = Buffer::Status::Free;
+ free_buffers.push_back(slot);
buffer_wait_event.writable->Signal();
}
diff --git a/src/core/hle/service/nvflinger/buffer_queue.h b/src/core/hle/service/nvflinger/buffer_queue.h
index f4bbfd945..f674823b0 100644
--- a/src/core/hle/service/nvflinger/buffer_queue.h
+++ b/src/core/hle/service/nvflinger/buffer_queue.h
@@ -101,6 +101,7 @@ private:
u32 id;
u64 layer_id;
+ std::list<u32> free_buffers;
std::vector<Buffer> queue;
std::list<u32> queue_sequence;
Kernel::EventPair buffer_wait_event;