e21fbd9ae5
Don't try to draw buffers that the guest application is using, only queued buffers are eligible for drawing. Drawing actual pixels is still not implemented.
825 lines
25 KiB
C++
825 lines
25 KiB
C++
// Copyright 2017 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/alignment.h"
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#include "common/scope_exit.h"
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#include "core/core_timing.h"
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#include "core/hle/ipc_helpers.h"
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#include "core/hle/service/vi/vi.h"
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#include "core/hle/service/vi/vi_m.h"
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namespace Service {
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namespace VI {
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constexpr size_t SCREEN_REFRESH_RATE = 60;
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constexpr u64 frame_ticks = static_cast<u64>(BASE_CLOCK_RATE / SCREEN_REFRESH_RATE);
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class Parcel {
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public:
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// This default size was chosen arbitrarily.
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static constexpr size_t DefaultBufferSize = 0x40;
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Parcel() : buffer(DefaultBufferSize) {}
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Parcel(std::vector<u8> data) : buffer(std::move(data)) {}
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virtual ~Parcel() = default;
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template <typename T>
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T Read() {
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T val;
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std::memcpy(&val, buffer.data() + read_index, sizeof(T));
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read_index += sizeof(T);
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read_index = Common::AlignUp(read_index, 4);
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return val;
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}
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template <typename T>
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T ReadUnaligned() {
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T val;
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std::memcpy(&val, buffer.data() + read_index, sizeof(T));
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read_index += sizeof(T);
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return val;
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}
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std::vector<u8> ReadBlock(size_t length) {
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std::vector<u8> data(length);
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std::memcpy(data.data(), buffer.data() + read_index, length);
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read_index += length;
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read_index = Common::AlignUp(read_index, 4);
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return data;
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}
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std::u16string ReadInterfaceToken() {
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u32 unknown = Read<u32_le>();
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u32 length = Read<u32_le>();
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std::u16string token{};
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for (u32 ch = 0; ch < length + 1; ++ch) {
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token.push_back(ReadUnaligned<u16_le>());
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}
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read_index = Common::AlignUp(read_index, 4);
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return token;
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}
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template <typename T>
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void Write(const T& val) {
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if (buffer.size() < write_index + sizeof(T))
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buffer.resize(buffer.size() + sizeof(T) + DefaultBufferSize);
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std::memcpy(buffer.data() + write_index, &val, sizeof(T));
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write_index += sizeof(T);
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write_index = Common::AlignUp(write_index, 4);
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}
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void Deserialize() {
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Header header{};
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std::memcpy(&header, buffer.data(), sizeof(Header));
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read_index = header.data_offset;
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DeserializeData();
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}
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std::vector<u8> Serialize() {
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ASSERT(read_index == 0);
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write_index = sizeof(Header);
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SerializeData();
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Header header{};
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header.data_offset = sizeof(Header);
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header.data_size = write_index - sizeof(Header);
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std::memcpy(buffer.data(), &header, sizeof(Header));
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return buffer;
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}
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protected:
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virtual void SerializeData(){};
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virtual void DeserializeData(){};
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private:
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struct Header {
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u32_le data_size;
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u32_le data_offset;
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u32_le objects_size;
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u32_le objects_offset;
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};
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static_assert(sizeof(Header) == 16, "ParcelHeader has wrong size");
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std::vector<u8> buffer;
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size_t read_index = 0;
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size_t write_index = 0;
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};
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class NativeWindow : public Parcel {
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public:
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NativeWindow(u32 id) : Parcel() {
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data.id = id;
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}
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~NativeWindow() override = default;
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protected:
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void SerializeData() override {
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Write(data);
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}
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private:
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struct Data {
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u32_le magic = 2;
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u32_le process_id;
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u32_le id;
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INSERT_PADDING_BYTES(0xC);
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std::array<u8, 8> dspdrv = {'d', 's', 'p', 'd', 'r', 'v'};
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INSERT_PADDING_BYTES(8);
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};
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static_assert(sizeof(Data) == 0x28, "ParcelData has wrong size");
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Data data{};
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};
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class IGBPConnectRequestParcel : public Parcel {
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public:
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IGBPConnectRequestParcel(const std::vector<u8>& buffer) : Parcel(buffer) {
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Deserialize();
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}
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~IGBPConnectRequestParcel() override = default;
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void DeserializeData() {
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std::u16string token = ReadInterfaceToken();
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data = Read<Data>();
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}
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struct Data {
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u32_le unk;
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u32_le api;
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u32_le producer_controlled_by_app;
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};
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Data data;
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};
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class IGBPConnectResponseParcel : public Parcel {
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public:
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IGBPConnectResponseParcel(u32 width, u32 height) : Parcel() {
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data.width = width;
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data.height = height;
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}
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~IGBPConnectResponseParcel() override = default;
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protected:
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void SerializeData() override {
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Write(data);
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}
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private:
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struct Data {
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u32_le width;
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u32_le height;
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u32_le transform_hint;
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u32_le num_pending_buffers;
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u32_le status;
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};
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static_assert(sizeof(Data) == 20, "ParcelData has wrong size");
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Data data{};
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};
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class IGBPSetPreallocatedBufferRequestParcel : public Parcel {
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public:
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IGBPSetPreallocatedBufferRequestParcel(const std::vector<u8>& buffer) : Parcel(buffer) {
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Deserialize();
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}
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~IGBPSetPreallocatedBufferRequestParcel() override = default;
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void DeserializeData() {
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std::u16string token = ReadInterfaceToken();
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data = Read<Data>();
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ASSERT(data.graphic_buffer_length == sizeof(IGBPBuffer));
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buffer = Read<IGBPBuffer>();
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}
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struct Data {
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u32_le slot;
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INSERT_PADDING_WORDS(1);
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u32_le graphic_buffer_length;
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INSERT_PADDING_WORDS(1);
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};
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Data data;
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IGBPBuffer buffer;
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};
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class IGBPSetPreallocatedBufferResponseParcel : public Parcel {
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public:
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IGBPSetPreallocatedBufferResponseParcel() : Parcel() {}
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~IGBPSetPreallocatedBufferResponseParcel() override = default;
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protected:
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void SerializeData() override {
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// TODO(Subv): Find out what this means
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Write<u32>(0);
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}
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};
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class IGBPDequeueBufferRequestParcel : public Parcel {
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public:
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IGBPDequeueBufferRequestParcel(const std::vector<u8>& buffer) : Parcel(buffer) {
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Deserialize();
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}
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~IGBPDequeueBufferRequestParcel() override = default;
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void DeserializeData() {
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std::u16string token = ReadInterfaceToken();
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data = Read<Data>();
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}
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struct Data {
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u32_le pixel_format;
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u32_le width;
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u32_le height;
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u32_le get_frame_timestamps;
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u32_le usage;
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};
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Data data;
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};
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class IGBPDequeueBufferResponseParcel : public Parcel {
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public:
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IGBPDequeueBufferResponseParcel(u32 slot) : Parcel(), slot(slot) {}
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~IGBPDequeueBufferResponseParcel() override = default;
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protected:
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void SerializeData() override {
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Write(slot);
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// TODO(Subv): Find out how this Fence is used.
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std::array<u32_le, 11> fence = {};
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Write(fence);
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Write<u32_le>(0);
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}
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u32_le slot;
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};
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class IGBPRequestBufferRequestParcel : public Parcel {
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public:
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IGBPRequestBufferRequestParcel(const std::vector<u8>& buffer) : Parcel(buffer) {
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Deserialize();
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}
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~IGBPRequestBufferRequestParcel() override = default;
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void DeserializeData() {
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std::u16string token = ReadInterfaceToken();
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slot = Read<u32_le>();
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}
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u32_le slot;
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};
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class IGBPRequestBufferResponseParcel : public Parcel {
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public:
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IGBPRequestBufferResponseParcel(IGBPBuffer buffer) : Parcel(), buffer(buffer) {}
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~IGBPRequestBufferResponseParcel() override = default;
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protected:
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void SerializeData() override {
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// TODO(Subv): Find out what this all means
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Write<u32_le>(1);
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Write<u32_le>(sizeof(IGBPBuffer));
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Write<u32_le>(0); // Unknown
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Write(buffer);
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Write<u32_le>(0);
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}
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IGBPBuffer buffer;
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};
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class IGBPQueueBufferRequestParcel : public Parcel {
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public:
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IGBPQueueBufferRequestParcel(const std::vector<u8>& buffer) : Parcel(buffer) {
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Deserialize();
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}
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~IGBPQueueBufferRequestParcel() override = default;
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void DeserializeData() {
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std::u16string token = ReadInterfaceToken();
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data = Read<Data>();
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}
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struct Data {
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u32_le slot;
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INSERT_PADDING_WORDS(2);
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u32_le timestamp;
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INSERT_PADDING_WORDS(20);
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};
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static_assert(sizeof(Data) == 96, "ParcelData has wrong size");
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Data data;
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};
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class IGBPQueueBufferResponseParcel : public Parcel {
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public:
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IGBPQueueBufferResponseParcel(u32 width, u32 height) : Parcel() {
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data.width = width;
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data.height = height;
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}
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~IGBPQueueBufferResponseParcel() override = default;
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protected:
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void SerializeData() override {
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Write(data);
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}
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private:
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struct Data {
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u32_le width;
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u32_le height;
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u32_le transform_hint;
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u32_le num_pending_buffers;
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u32_le status;
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};
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static_assert(sizeof(Data) == 20, "ParcelData has wrong size");
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Data data{};
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};
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class IHOSBinderDriver final : public ServiceFramework<IHOSBinderDriver> {
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public:
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IHOSBinderDriver(std::shared_ptr<NVFlinger> nv_flinger)
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: ServiceFramework("IHOSBinderDriver"), nv_flinger(std::move(nv_flinger)) {
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static const FunctionInfo functions[] = {
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{0, &IHOSBinderDriver::TransactParcel, "TransactParcel"},
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{1, &IHOSBinderDriver::AdjustRefcount, "AdjustRefcount"},
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{2, nullptr, "GetNativeHandle"},
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{3, nullptr, "TransactParcelAuto"},
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};
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RegisterHandlers(functions);
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}
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~IHOSBinderDriver() = default;
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private:
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enum class TransactionId {
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RequestBuffer = 1,
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SetBufferCount = 2,
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DequeueBuffer = 3,
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DetachBuffer = 4,
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DetachNextBuffer = 5,
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AttachBuffer = 6,
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QueueBuffer = 7,
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CancelBuffer = 8,
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Query = 9,
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Connect = 10,
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Disconnect = 11,
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AllocateBuffers = 13,
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SetPreallocatedBuffer = 14
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};
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void TransactParcel(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx};
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u32 id = rp.Pop<u32>();
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auto transaction = static_cast<TransactionId>(rp.Pop<u32>());
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u32 flags = rp.Pop<u32>();
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auto& input_buffer = ctx.BufferDescriptorA()[0];
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std::vector<u8> input_data(input_buffer.Size());
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Memory::ReadBlock(input_buffer.Address(), input_data.data(), input_buffer.Size());
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auto& output_buffer = ctx.BufferDescriptorB()[0];
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auto buffer_queue = nv_flinger->GetBufferQueue(id);
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if (transaction == TransactionId::Connect) {
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IGBPConnectRequestParcel request{input_data};
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IGBPConnectResponseParcel response{1280, 720};
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auto response_buffer = response.Serialize();
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Memory::WriteBlock(output_buffer.Address(), response_buffer.data(),
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output_buffer.Size());
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} else if (transaction == TransactionId::SetPreallocatedBuffer) {
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IGBPSetPreallocatedBufferRequestParcel request{input_data};
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buffer_queue->SetPreallocatedBuffer(request.data.slot, request.buffer);
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IGBPSetPreallocatedBufferResponseParcel response{};
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auto response_buffer = response.Serialize();
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Memory::WriteBlock(output_buffer.Address(), response_buffer.data(),
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output_buffer.Size());
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} else if (transaction == TransactionId::DequeueBuffer) {
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IGBPDequeueBufferRequestParcel request{input_data};
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u32 slot = buffer_queue->DequeueBuffer(request.data.pixel_format, request.data.width,
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request.data.height);
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IGBPDequeueBufferResponseParcel response{slot};
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auto response_buffer = response.Serialize();
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Memory::WriteBlock(output_buffer.Address(), response_buffer.data(),
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output_buffer.Size());
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} else if (transaction == TransactionId::RequestBuffer) {
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IGBPRequestBufferRequestParcel request{input_data};
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auto& buffer = buffer_queue->RequestBuffer(request.slot);
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IGBPRequestBufferResponseParcel response{buffer};
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auto response_buffer = response.Serialize();
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Memory::WriteBlock(output_buffer.Address(), response_buffer.data(),
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output_buffer.Size());
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} else if (transaction == TransactionId::QueueBuffer) {
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IGBPQueueBufferRequestParcel request{input_data};
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buffer_queue->QueueBuffer(request.data.slot);
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IGBPQueueBufferResponseParcel response{1280, 720};
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auto response_buffer = response.Serialize();
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Memory::WriteBlock(output_buffer.Address(), response_buffer.data(),
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output_buffer.Size());
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} else {
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ASSERT_MSG(false, "Unimplemented");
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}
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LOG_WARNING(Service, "(STUBBED) called");
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IPC::RequestBuilder rb{ctx, 2};
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rb.Push(RESULT_SUCCESS);
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}
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void AdjustRefcount(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx};
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u32 id = rp.Pop<u32>();
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s32 addval = rp.PopRaw<s32>();
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u32 type = rp.Pop<u32>();
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LOG_WARNING(Service, "(STUBBED) called id=%u, addval=%08X, type=%08X", id, addval, type);
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IPC::RequestBuilder rb{ctx, 2};
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rb.Push(RESULT_SUCCESS);
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}
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std::shared_ptr<NVFlinger> nv_flinger;
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};
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class ISystemDisplayService final : public ServiceFramework<ISystemDisplayService> {
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public:
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ISystemDisplayService() : ServiceFramework("ISystemDisplayService") {
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static const FunctionInfo functions[] = {
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{1200, nullptr, "GetZOrderCountMin"},
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{2205, &ISystemDisplayService::SetLayerZ, "SetLayerZ"},
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};
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RegisterHandlers(functions);
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}
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~ISystemDisplayService() = default;
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private:
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void SetLayerZ(Kernel::HLERequestContext& ctx) {
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LOG_WARNING(Service, "(STUBBED) called");
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IPC::RequestParser rp{ctx};
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u64 layer_id = rp.Pop<u64>();
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u64 z_value = rp.Pop<u64>();
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IPC::RequestBuilder rb = rp.MakeBuilder(2, 0, 0, 0);
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rb.Push(RESULT_SUCCESS);
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}
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};
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class IManagerDisplayService final : public ServiceFramework<IManagerDisplayService> {
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public:
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IManagerDisplayService(std::shared_ptr<NVFlinger> nv_flinger)
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: ServiceFramework("IManagerDisplayService"), nv_flinger(std::move(nv_flinger)) {
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static const FunctionInfo functions[] = {
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{1102, nullptr, "GetDisplayResolution"},
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{2010, &IManagerDisplayService::CreateManagedLayer, "CreateManagedLayer"},
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{6000, &IManagerDisplayService::AddToLayerStack, "AddToLayerStack"},
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};
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RegisterHandlers(functions);
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}
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~IManagerDisplayService() = default;
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private:
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void CreateManagedLayer(Kernel::HLERequestContext& ctx) {
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LOG_WARNING(Service, "(STUBBED) called");
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IPC::RequestParser rp{ctx};
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u32 unknown = rp.Pop<u32>();
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rp.Skip(1, false);
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u64 display = rp.Pop<u64>();
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u64 aruid = rp.Pop<u64>();
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u64 layer_id = nv_flinger->CreateLayer(display);
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IPC::RequestBuilder rb = rp.MakeBuilder(4, 0, 0, 0);
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rb.Push(RESULT_SUCCESS);
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rb.Push(layer_id);
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}
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void AddToLayerStack(Kernel::HLERequestContext& ctx) {
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LOG_WARNING(Service, "(STUBBED) called");
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IPC::RequestParser rp{ctx};
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u32 stack = rp.Pop<u32>();
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u64 layer_id = rp.Pop<u64>();
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IPC::RequestBuilder rb = rp.MakeBuilder(2, 0, 0, 0);
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rb.Push(RESULT_SUCCESS);
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}
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std::shared_ptr<NVFlinger> nv_flinger;
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};
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void IApplicationDisplayService::GetRelayService(Kernel::HLERequestContext& ctx) {
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LOG_WARNING(Service, "(STUBBED) called");
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IPC::RequestBuilder rb{ctx, 2, 0, 0, 1};
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rb.Push(RESULT_SUCCESS);
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rb.PushIpcInterface<IHOSBinderDriver>(nv_flinger);
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}
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void IApplicationDisplayService::GetSystemDisplayService(Kernel::HLERequestContext& ctx) {
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LOG_WARNING(Service, "(STUBBED) called");
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IPC::RequestBuilder rb{ctx, 2, 0, 0, 1};
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rb.Push(RESULT_SUCCESS);
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rb.PushIpcInterface<ISystemDisplayService>();
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}
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|
|
void IApplicationDisplayService::GetManagerDisplayService(Kernel::HLERequestContext& ctx) {
|
|
LOG_WARNING(Service, "(STUBBED) called");
|
|
|
|
IPC::RequestBuilder rb{ctx, 2, 0, 0, 1};
|
|
rb.Push(RESULT_SUCCESS);
|
|
rb.PushIpcInterface<IManagerDisplayService>(nv_flinger);
|
|
}
|
|
|
|
void IApplicationDisplayService::OpenDisplay(Kernel::HLERequestContext& ctx) {
|
|
LOG_WARNING(Service, "(STUBBED) called");
|
|
IPC::RequestParser rp{ctx};
|
|
auto name_buf = rp.PopRaw<std::array<u8, 0x40>>();
|
|
auto end = std::find(name_buf.begin(), name_buf.end(), '\0');
|
|
|
|
std::string name(name_buf.begin(), end);
|
|
|
|
ASSERT_MSG(name == "Default", "Non-default displays aren't supported yet");
|
|
|
|
IPC::RequestBuilder rb = rp.MakeBuilder(4, 0, 0, 0);
|
|
rb.Push(RESULT_SUCCESS);
|
|
rb.Push<u64>(nv_flinger->OpenDisplay(name));
|
|
}
|
|
|
|
void IApplicationDisplayService::OpenLayer(Kernel::HLERequestContext& ctx) {
|
|
LOG_WARNING(Service, "(STUBBED) called");
|
|
IPC::RequestParser rp{ctx};
|
|
auto name_buf = rp.PopRaw<std::array<u8, 0x40>>();
|
|
auto end = std::find(name_buf.begin(), name_buf.end(), '\0');
|
|
|
|
std::string display_name(name_buf.begin(), end);
|
|
|
|
u64 layer_id = rp.Pop<u64>();
|
|
u64 aruid = rp.Pop<u64>();
|
|
|
|
auto& buffer = ctx.BufferDescriptorB()[0];
|
|
|
|
u64 display_id = nv_flinger->OpenDisplay(display_name);
|
|
u32 buffer_queue_id = nv_flinger->GetBufferQueueId(display_id, layer_id);
|
|
|
|
NativeWindow native_window{buffer_queue_id};
|
|
auto data = native_window.Serialize();
|
|
Memory::WriteBlock(buffer.Address(), data.data(), data.size());
|
|
|
|
IPC::RequestBuilder rb = rp.MakeBuilder(4, 0, 0, 0);
|
|
rb.Push(RESULT_SUCCESS);
|
|
rb.Push<u64>(data.size());
|
|
}
|
|
|
|
void IApplicationDisplayService::SetLayerScalingMode(Kernel::HLERequestContext& ctx) {
|
|
LOG_WARNING(Service, "(STUBBED) called");
|
|
IPC::RequestParser rp{ctx};
|
|
u32 scaling_mode = rp.Pop<u32>();
|
|
u64 unknown = rp.Pop<u64>();
|
|
|
|
IPC::RequestBuilder rb = rp.MakeBuilder(2, 0, 0, 0);
|
|
rb.Push(RESULT_SUCCESS);
|
|
}
|
|
|
|
void IApplicationDisplayService::GetDisplayVsyncEvent(Kernel::HLERequestContext& ctx) {
|
|
LOG_WARNING(Service, "(STUBBED) called");
|
|
IPC::RequestParser rp{ctx};
|
|
u64 display_id = rp.Pop<u64>();
|
|
|
|
auto vsync_event = nv_flinger->GetVsyncEvent(display_id);
|
|
|
|
IPC::RequestBuilder rb = rp.MakeBuilder(2, 1, 0, 0);
|
|
rb.Push(RESULT_SUCCESS);
|
|
rb.PushCopyObjects(vsync_event);
|
|
}
|
|
|
|
IApplicationDisplayService::IApplicationDisplayService(std::shared_ptr<NVFlinger> nv_flinger)
|
|
: ServiceFramework("IApplicationDisplayService"), nv_flinger(std::move(nv_flinger)) {
|
|
static const FunctionInfo functions[] = {
|
|
{100, &IApplicationDisplayService::GetRelayService, "GetRelayService"},
|
|
{101, &IApplicationDisplayService::GetSystemDisplayService, "GetSystemDisplayService"},
|
|
{102, &IApplicationDisplayService::GetManagerDisplayService, "GetManagerDisplayService"},
|
|
{103, nullptr, "GetIndirectDisplayTransactionService"},
|
|
{1000, nullptr, "ListDisplays"},
|
|
{1010, &IApplicationDisplayService::OpenDisplay, "OpenDisplay"},
|
|
{2101, &IApplicationDisplayService::SetLayerScalingMode, "SetLayerScalingMode"},
|
|
{2020, &IApplicationDisplayService::OpenLayer, "OpenLayer"},
|
|
{5202, &IApplicationDisplayService::GetDisplayVsyncEvent, "GetDisplayVsyncEvent"},
|
|
};
|
|
RegisterHandlers(functions);
|
|
}
|
|
|
|
void InstallInterfaces(SM::ServiceManager& service_manager) {
|
|
std::make_shared<VI_M>()->InstallAsService(service_manager);
|
|
}
|
|
|
|
NVFlinger::NVFlinger() {
|
|
// Add the different displays to the list of displays.
|
|
Display default_{0, "Default"};
|
|
Display external{1, "External"};
|
|
Display edid{2, "Edid"};
|
|
Display internal{3, "Internal"};
|
|
|
|
displays.emplace_back(default_);
|
|
displays.emplace_back(external);
|
|
displays.emplace_back(edid);
|
|
displays.emplace_back(internal);
|
|
|
|
// Schedule the screen composition events
|
|
composition_event =
|
|
CoreTiming::RegisterEvent("ScreenCompositioin", [this](u64 userdata, int cycles_late) {
|
|
Compose();
|
|
CoreTiming::ScheduleEvent(frame_ticks - cycles_late, composition_event);
|
|
});
|
|
|
|
CoreTiming::ScheduleEvent(frame_ticks, composition_event);
|
|
}
|
|
|
|
NVFlinger::~NVFlinger() {
|
|
CoreTiming::UnscheduleEvent(composition_event, 0);
|
|
}
|
|
|
|
u64 NVFlinger::OpenDisplay(const std::string& name) {
|
|
LOG_WARNING(Service, "Opening display %s", name.c_str());
|
|
|
|
// TODO(Subv): Currently we only support the Default display.
|
|
ASSERT(name == "Default");
|
|
|
|
auto itr = std::find_if(displays.begin(), displays.end(),
|
|
[&](const Display& display) { return display.name == name; });
|
|
|
|
ASSERT(itr != displays.end());
|
|
|
|
return itr->id;
|
|
}
|
|
|
|
u64 NVFlinger::CreateLayer(u64 display_id) {
|
|
auto& display = GetDisplay(display_id);
|
|
|
|
ASSERT_MSG(display.layers.empty(), "Only one layer is supported per display at the moment");
|
|
|
|
u64 layer_id = next_layer_id++;
|
|
u32 buffer_queue_id = next_buffer_queue_id++;
|
|
auto buffer_queue = std::make_shared<BufferQueue>(buffer_queue_id, layer_id);
|
|
display.layers.emplace_back(layer_id, buffer_queue);
|
|
buffer_queues.emplace_back(std::move(buffer_queue));
|
|
return layer_id;
|
|
}
|
|
|
|
u32 NVFlinger::GetBufferQueueId(u64 display_id, u64 layer_id) {
|
|
const auto& layer = GetLayer(display_id, layer_id);
|
|
return layer.buffer_queue->GetId();
|
|
}
|
|
|
|
Kernel::SharedPtr<Kernel::Event> NVFlinger::GetVsyncEvent(u64 display_id) {
|
|
const auto& display = GetDisplay(display_id);
|
|
return display.vsync_event;
|
|
}
|
|
|
|
std::shared_ptr<BufferQueue> NVFlinger::GetBufferQueue(u32 id) const {
|
|
auto itr = std::find_if(buffer_queues.begin(), buffer_queues.end(),
|
|
[&](const auto& queue) { return queue->GetId() == id; });
|
|
|
|
ASSERT(itr != buffer_queues.end());
|
|
return *itr;
|
|
}
|
|
|
|
Display& NVFlinger::GetDisplay(u64 display_id) {
|
|
auto itr = std::find_if(displays.begin(), displays.end(),
|
|
[&](const Display& display) { return display.id == display_id; });
|
|
|
|
ASSERT(itr != displays.end());
|
|
return *itr;
|
|
}
|
|
|
|
Layer& NVFlinger::GetLayer(u64 display_id, u64 layer_id) {
|
|
auto& display = GetDisplay(display_id);
|
|
|
|
auto itr = std::find_if(display.layers.begin(), display.layers.end(),
|
|
[&](const Layer& layer) { return layer.id == layer_id; });
|
|
|
|
ASSERT(itr != display.layers.end());
|
|
return *itr;
|
|
}
|
|
|
|
void NVFlinger::Compose() {
|
|
for (auto& display : displays) {
|
|
// Trigger vsync for this display at the end of drawing
|
|
SCOPE_EXIT({ display.vsync_event->Signal(); });
|
|
|
|
// Don't do anything for displays without layers.
|
|
if (display.layers.empty())
|
|
continue;
|
|
|
|
// TODO(Subv): Support more than 1 layer.
|
|
ASSERT_MSG(display.layers.size() == 1, "Max 1 layer per display is supported");
|
|
|
|
Layer& layer = display.layers[0];
|
|
auto& buffer_queue = layer.buffer_queue;
|
|
|
|
// Search for a queued buffer and acquire it
|
|
auto buffer = buffer_queue->AcquireBuffer();
|
|
|
|
if (buffer == boost::none) {
|
|
// There was no queued buffer to draw.
|
|
continue;
|
|
}
|
|
|
|
// TODO(Subv): Send the buffer to the GPU for drawing.
|
|
|
|
buffer_queue->ReleaseBuffer(buffer->slot);
|
|
}
|
|
}
|
|
|
|
BufferQueue::BufferQueue(u32 id, u64 layer_id) : id(id), layer_id(layer_id) {}
|
|
|
|
void BufferQueue::SetPreallocatedBuffer(u32 slot, IGBPBuffer& igbp_buffer) {
|
|
Buffer buffer{};
|
|
buffer.slot = slot;
|
|
buffer.igbp_buffer = igbp_buffer;
|
|
buffer.status = Buffer::Status::Free;
|
|
|
|
LOG_WARNING(Service, "Adding graphics buffer %u", slot);
|
|
|
|
queue.emplace_back(buffer);
|
|
}
|
|
|
|
u32 BufferQueue::DequeueBuffer(u32 pixel_format, 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.
|
|
auto& igbp_buffer = buffer.igbp_buffer;
|
|
return igbp_buffer.format == pixel_format && igbp_buffer.width == width &&
|
|
igbp_buffer.height == height;
|
|
});
|
|
ASSERT(itr != queue.end());
|
|
|
|
itr->status = Buffer::Status::Dequeued;
|
|
return itr->slot;
|
|
}
|
|
|
|
const IGBPBuffer& BufferQueue::RequestBuffer(u32 slot) const {
|
|
auto itr = std::find_if(queue.begin(), queue.end(),
|
|
[&](const Buffer& buffer) { return buffer.slot == slot; });
|
|
ASSERT(itr != queue.end());
|
|
ASSERT(itr->status == Buffer::Status::Dequeued);
|
|
return itr->igbp_buffer;
|
|
}
|
|
|
|
void BufferQueue::QueueBuffer(u32 slot) {
|
|
auto itr = std::find_if(queue.begin(), queue.end(),
|
|
[&](const Buffer& buffer) { return buffer.slot == slot; });
|
|
ASSERT(itr != queue.end());
|
|
ASSERT(itr->status == Buffer::Status::Dequeued);
|
|
itr->status = Buffer::Status::Queued;
|
|
}
|
|
|
|
boost::optional<const BufferQueue::Buffer&> BufferQueue::AcquireBuffer() {
|
|
auto itr = std::find_if(queue.begin(), queue.end(), [](const Buffer& buffer) {
|
|
return buffer.status == Buffer::Status::Queued;
|
|
});
|
|
if (itr == queue.end())
|
|
return boost::none;
|
|
itr->status = Buffer::Status::Acquired;
|
|
return *itr;
|
|
}
|
|
|
|
void BufferQueue::ReleaseBuffer(u32 slot) {
|
|
auto itr = std::find_if(queue.begin(), queue.end(),
|
|
[&](const Buffer& buffer) { return buffer.slot == slot; });
|
|
ASSERT(itr != queue.end());
|
|
ASSERT(itr->status == Buffer::Status::Acquired);
|
|
itr->status = Buffer::Status::Free;
|
|
}
|
|
|
|
Layer::Layer(u64 id, std::shared_ptr<BufferQueue> queue) : id(id), buffer_queue(std::move(queue)) {}
|
|
|
|
Display::Display(u64 id, std::string name) : id(id), name(std::move(name)) {
|
|
vsync_event = Kernel::Event::Create(Kernel::ResetType::OneShot, "Display VSync Event");
|
|
}
|
|
|
|
} // namespace VI
|
|
} // namespace Service
|