scratch_buffer: Explicitly defing resize and resize_destructive functions
resize keeps previous data intact when the buffer grows resize_destructive destroys the previous data when the buffer grows
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64869807e2
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@ -25,7 +25,20 @@ public:
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~ScratchBuffer() = default;
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~ScratchBuffer() = default;
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/// This will only grow the buffer's capacity if size is greater than the current capacity.
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/// This will only grow the buffer's capacity if size is greater than the current capacity.
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/// The previously held data will remain intact.
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void resize(size_t size) {
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void resize(size_t size) {
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if (size > buffer_capacity) {
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auto new_buffer = Common::make_unique_for_overwrite<T[]>(size);
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std::move(buffer.get(), buffer.get() + buffer_capacity, new_buffer.get());
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buffer = std::move(new_buffer);
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buffer_capacity = size;
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}
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last_requested_size = size;
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}
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/// This will only grow the buffer's capacity if size is greater than the current capacity.
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/// The previously held data will be destroyed if a reallocation occurs.
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void resize_destructive(size_t size) {
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if (size > buffer_capacity) {
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if (size > buffer_capacity) {
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buffer_capacity = size;
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buffer_capacity = size;
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buffer = Common::make_unique_for_overwrite<T[]>(buffer_capacity);
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buffer = Common::make_unique_for_overwrite<T[]>(buffer_capacity);
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@ -61,6 +74,10 @@ public:
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return buffer[i];
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return buffer[i];
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}
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}
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[[nodiscard]] const T& operator[](size_t i) const {
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return buffer[i];
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}
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[[nodiscard]] size_t size() const noexcept {
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[[nodiscard]] size_t size() const noexcept {
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return last_requested_size;
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return last_requested_size;
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}
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}
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@ -29,7 +29,7 @@ TEST_CASE("ScratchBuffer: Basic Test", "[common]") {
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}
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}
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}
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}
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TEST_CASE("ScratchBuffer: Resize Grow", "[common]") {
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TEST_CASE("ScratchBuffer: resize_destructive Grow", "[common]") {
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std::array<u8, 10> payload;
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std::array<u8, 10> payload;
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payload.fill(66);
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payload.fill(66);
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@ -38,14 +38,86 @@ TEST_CASE("ScratchBuffer: Resize Grow", "[common]") {
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REQUIRE(buf.capacity() == payload.size());
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REQUIRE(buf.capacity() == payload.size());
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// Increasing the size should reallocate the buffer
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// Increasing the size should reallocate the buffer
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buf.resize(payload.size() * 2);
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buf.resize_destructive(payload.size() * 2);
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REQUIRE(buf.size() == payload.size() * 2);
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REQUIRE(buf.size() == payload.size() * 2);
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REQUIRE(buf.capacity() == payload.size() * 2);
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REQUIRE(buf.capacity() == payload.size() * 2);
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// Since the buffer is not value initialized, reading its data will be garbage
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// Since the buffer is not value initialized, reading its data will be garbage
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}
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}
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TEST_CASE("ScratchBuffer: Resize Shrink", "[common]") {
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TEST_CASE("ScratchBuffer: resize_destructive Shrink", "[common]") {
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std::array<u8, 10> payload;
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payload.fill(66);
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ScratchBuffer<u8> buf(payload.size());
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REQUIRE(buf.size() == payload.size());
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REQUIRE(buf.capacity() == payload.size());
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std::memcpy(buf.data(), payload.data(), payload.size());
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for (size_t i = 0; i < payload.size(); ++i) {
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REQUIRE(buf[i] == payload[i]);
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}
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// Decreasing the size should not cause a buffer reallocation
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// This can be tested by ensuring the buffer capacity and data has not changed,
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buf.resize_destructive(1U);
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REQUIRE(buf.size() == 1U);
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REQUIRE(buf.capacity() == payload.size());
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for (size_t i = 0; i < payload.size(); ++i) {
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REQUIRE(buf[i] == payload[i]);
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}
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}
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TEST_CASE("ScratchBuffer: resize Grow u8", "[common]") {
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std::array<u8, 10> payload;
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payload.fill(66);
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ScratchBuffer<u8> buf(payload.size());
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REQUIRE(buf.size() == payload.size());
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REQUIRE(buf.capacity() == payload.size());
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std::memcpy(buf.data(), payload.data(), payload.size());
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for (size_t i = 0; i < payload.size(); ++i) {
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REQUIRE(buf[i] == payload[i]);
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}
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// Increasing the size should reallocate the buffer
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buf.resize(payload.size() * 2);
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REQUIRE(buf.size() == payload.size() * 2);
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REQUIRE(buf.capacity() == payload.size() * 2);
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// resize() keeps the previous data intact
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for (size_t i = 0; i < payload.size(); ++i) {
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REQUIRE(buf[i] == payload[i]);
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}
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}
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TEST_CASE("ScratchBuffer: resize Grow u64", "[common]") {
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std::array<u64, 10> payload;
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payload.fill(6666);
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ScratchBuffer<u64> buf(payload.size());
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REQUIRE(buf.size() == payload.size());
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REQUIRE(buf.capacity() == payload.size());
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std::memcpy(buf.data(), payload.data(), payload.size() * sizeof(u64));
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for (size_t i = 0; i < payload.size(); ++i) {
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REQUIRE(buf[i] == payload[i]);
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}
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// Increasing the size should reallocate the buffer
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buf.resize(payload.size() * 2);
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REQUIRE(buf.size() == payload.size() * 2);
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REQUIRE(buf.capacity() == payload.size() * 2);
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// resize() keeps the previous data intact
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for (size_t i = 0; i < payload.size(); ++i) {
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REQUIRE(buf[i] == payload[i]);
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}
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}
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TEST_CASE("ScratchBuffer: resize Shrink", "[common]") {
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std::array<u8, 10> payload;
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std::array<u8, 10> payload;
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payload.fill(66);
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payload.fill(66);
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@ -1926,7 +1926,7 @@ std::span<const u8> BufferCache<P>::ImmediateBufferWithData(VAddr cpu_addr, size
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template <class P>
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template <class P>
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std::span<u8> BufferCache<P>::ImmediateBuffer(size_t wanted_capacity) {
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std::span<u8> BufferCache<P>::ImmediateBuffer(size_t wanted_capacity) {
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immediate_buffer_alloc.resize(wanted_capacity);
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immediate_buffer_alloc.resize_destructive(wanted_capacity);
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return std::span<u8>(immediate_buffer_alloc.data(), wanted_capacity);
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return std::span<u8>(immediate_buffer_alloc.data(), wanted_capacity);
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}
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}
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@ -74,7 +74,7 @@ bool DmaPusher::Step() {
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}
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}
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// Push buffer non-empty, read a word
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// Push buffer non-empty, read a word
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command_headers.resize(command_list_header.size);
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command_headers.resize_destructive(command_list_header.size);
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if (Settings::IsGPULevelHigh()) {
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if (Settings::IsGPULevelHigh()) {
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memory_manager.ReadBlock(dma_get, command_headers.data(),
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memory_manager.ReadBlock(dma_get, command_headers.data(),
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command_list_header.size * sizeof(u32));
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command_list_header.size * sizeof(u32));
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@ -24,7 +24,7 @@ void State::BindRasterizer(VideoCore::RasterizerInterface* rasterizer_) {
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void State::ProcessExec(const bool is_linear_) {
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void State::ProcessExec(const bool is_linear_) {
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write_offset = 0;
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write_offset = 0;
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copy_size = regs.line_length_in * regs.line_count;
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copy_size = regs.line_length_in * regs.line_count;
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inner_buffer.resize(copy_size);
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inner_buffer.resize_destructive(copy_size);
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is_linear = is_linear_;
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is_linear = is_linear_;
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}
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}
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@ -70,7 +70,7 @@ void State::ProcessData(std::span<const u8> read_buffer) {
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const std::size_t dst_size = Tegra::Texture::CalculateSize(
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const std::size_t dst_size = Tegra::Texture::CalculateSize(
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true, bytes_per_pixel, width, regs.dest.height, regs.dest.depth,
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true, bytes_per_pixel, width, regs.dest.height, regs.dest.depth,
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regs.dest.BlockHeight(), regs.dest.BlockDepth());
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regs.dest.BlockHeight(), regs.dest.BlockDepth());
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tmp_buffer.resize(dst_size);
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tmp_buffer.resize_destructive(dst_size);
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memory_manager.ReadBlock(address, tmp_buffer.data(), dst_size);
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memory_manager.ReadBlock(address, tmp_buffer.data(), dst_size);
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Tegra::Texture::SwizzleSubrect(tmp_buffer, read_buffer, bytes_per_pixel, width,
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Tegra::Texture::SwizzleSubrect(tmp_buffer, read_buffer, bytes_per_pixel, width,
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regs.dest.height, regs.dest.depth, x_offset, regs.dest.y,
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regs.dest.height, regs.dest.depth, x_offset, regs.dest.y,
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@ -184,8 +184,8 @@ void MaxwellDMA::CopyBlockLinearToPitch() {
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const size_t src_size =
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const size_t src_size =
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CalculateSize(true, bytes_per_pixel, width, height, depth, block_height, block_depth);
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CalculateSize(true, bytes_per_pixel, width, height, depth, block_height, block_depth);
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read_buffer.resize(src_size);
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read_buffer.resize_destructive(src_size);
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write_buffer.resize(dst_size);
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write_buffer.resize_destructive(dst_size);
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memory_manager.ReadBlock(regs.offset_in, read_buffer.data(), src_size);
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memory_manager.ReadBlock(regs.offset_in, read_buffer.data(), src_size);
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memory_manager.ReadBlock(regs.offset_out, write_buffer.data(), dst_size);
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memory_manager.ReadBlock(regs.offset_out, write_buffer.data(), dst_size);
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@ -231,8 +231,8 @@ void MaxwellDMA::CopyPitchToBlockLinear() {
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CalculateSize(true, bytes_per_pixel, width, height, depth, block_height, block_depth);
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CalculateSize(true, bytes_per_pixel, width, height, depth, block_height, block_depth);
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const size_t src_size = static_cast<size_t>(regs.pitch_in) * regs.line_count;
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const size_t src_size = static_cast<size_t>(regs.pitch_in) * regs.line_count;
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read_buffer.resize(src_size);
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read_buffer.resize_destructive(src_size);
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write_buffer.resize(dst_size);
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write_buffer.resize_destructive(dst_size);
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memory_manager.ReadBlock(regs.offset_in, read_buffer.data(), src_size);
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memory_manager.ReadBlock(regs.offset_in, read_buffer.data(), src_size);
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if (Settings::IsGPULevelExtreme()) {
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if (Settings::IsGPULevelExtreme()) {
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@ -261,8 +261,8 @@ void MaxwellDMA::FastCopyBlockLinearToPitch() {
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pos_x = pos_x % x_in_gob;
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pos_x = pos_x % x_in_gob;
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pos_y = pos_y % 8;
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pos_y = pos_y % 8;
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read_buffer.resize(src_size);
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read_buffer.resize_destructive(src_size);
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write_buffer.resize(dst_size);
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write_buffer.resize_destructive(dst_size);
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if (Settings::IsGPULevelExtreme()) {
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if (Settings::IsGPULevelExtreme()) {
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memory_manager.ReadBlock(regs.offset_in + offset, read_buffer.data(), src_size);
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memory_manager.ReadBlock(regs.offset_in + offset, read_buffer.data(), src_size);
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@ -321,10 +321,10 @@ void MaxwellDMA::CopyBlockLinearToBlockLinear() {
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const u32 pitch = x_elements * bytes_per_pixel;
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const u32 pitch = x_elements * bytes_per_pixel;
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const size_t mid_buffer_size = pitch * regs.line_count;
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const size_t mid_buffer_size = pitch * regs.line_count;
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read_buffer.resize(src_size);
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read_buffer.resize_destructive(src_size);
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write_buffer.resize(dst_size);
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write_buffer.resize_destructive(dst_size);
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intermediate_buffer.resize(mid_buffer_size);
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intermediate_buffer.resize_destructive(mid_buffer_size);
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memory_manager.ReadBlock(regs.offset_in, read_buffer.data(), src_size);
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memory_manager.ReadBlock(regs.offset_in, read_buffer.data(), src_size);
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memory_manager.ReadBlock(regs.offset_out, write_buffer.data(), dst_size);
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memory_manager.ReadBlock(regs.offset_out, write_buffer.data(), dst_size);
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@ -155,7 +155,7 @@ void Vic::WriteRGBFrame(const AVFrame* frame, const VicConfig& config) {
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// swizzle pitch linear to block linear
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// swizzle pitch linear to block linear
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const u32 block_height = static_cast<u32>(config.block_linear_height_log2);
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const u32 block_height = static_cast<u32>(config.block_linear_height_log2);
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const auto size = Texture::CalculateSize(true, 4, width, height, 1, block_height, 0);
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const auto size = Texture::CalculateSize(true, 4, width, height, 1, block_height, 0);
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luma_buffer.resize(size);
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luma_buffer.resize_destructive(size);
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std::span<const u8> frame_buff(converted_frame_buf_addr, 4 * width * height);
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std::span<const u8> frame_buff(converted_frame_buf_addr, 4 * width * height);
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Texture::SwizzleSubrect(luma_buffer, frame_buff, 4, width, height, 1, 0, 0, width, height,
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Texture::SwizzleSubrect(luma_buffer, frame_buff, 4, width, height, 1, 0, 0, width, height,
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block_height, 0, width * 4);
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block_height, 0, width * 4);
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@ -181,8 +181,8 @@ void Vic::WriteYUVFrame(const AVFrame* frame, const VicConfig& config) {
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const auto stride = static_cast<size_t>(frame->linesize[0]);
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const auto stride = static_cast<size_t>(frame->linesize[0]);
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luma_buffer.resize(aligned_width * surface_height);
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luma_buffer.resize_destructive(aligned_width * surface_height);
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chroma_buffer.resize(aligned_width * surface_height / 2);
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chroma_buffer.resize_destructive(aligned_width * surface_height / 2);
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// Populate luma buffer
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// Populate luma buffer
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const u8* luma_src = frame->data[0];
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const u8* luma_src = frame->data[0];
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