service/gsp: Implement saving of framebuffers in SaveVramSysArea. (#6821)
* service/gsp: Implement saving of framebuffers in SaveVramSysArea. * Address review comments. * service/apt: Separate capture info and capture buffer info. The former is used with the RequestForSysApplet message and GetCaptureInfo. The latter is used with SendCaptureBufferInfo and ReceiveCaptureBufferInfo.
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Steveice10
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@ -232,7 +232,7 @@ void AppletManager::CancelAndSendParameter(const MessageParameter& parameter) {
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parameter.sender_id);
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if (parameter.buffer.size() >= sizeof(CaptureBufferInfo)) {
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SendCaptureBufferInfo(parameter.buffer);
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SetCaptureInfo(parameter.buffer);
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CaptureFrameBuffers();
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}
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@ -511,6 +511,8 @@ ResultCode AppletManager::PrepareToStartLibraryApplet(AppletId applet_id) {
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last_library_launcher_slot = active_slot;
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last_prepared_library_applet = applet_id;
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capture_buffer_info.reset();
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auto cfg = Service::CFG::GetModule(system);
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auto process =
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NS::LaunchTitle(FS::MediaType::NAND, GetTitleIdForApplet(applet_id, cfg->GetRegionValue()));
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@ -849,6 +851,9 @@ ResultCode AppletManager::PrepareToJumpToHomeMenu() {
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}
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last_jump_to_home_slot = active_slot;
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capture_buffer_info.reset();
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if (last_jump_to_home_slot == AppletSlot::Application) {
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EnsureHomeMenuLoaded();
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}
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@ -1250,6 +1255,8 @@ ResultCode AppletManager::PrepareToStartApplication(u64 title_id, FS::MediaType
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app_start_parameters->next_title_id = title_id;
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app_start_parameters->next_media_type = media_type;
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capture_buffer_info.reset();
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return RESULT_SUCCESS;
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}
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@ -1359,48 +1366,74 @@ void AppletManager::EnsureHomeMenuLoaded() {
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}
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}
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static void CaptureFrameBuffer(Core::System& system, u32 capture_offset, VAddr src, u32 height,
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u32 format) {
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static constexpr auto screen_capture_base_vaddr = static_cast<VAddr>(0x1F500000);
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static constexpr auto screen_width = 240;
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static constexpr auto screen_width_pow2 = 256;
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const auto bpp = format < 2 ? 3 : 2;
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static u32 GetDisplayBufferModePixelSize(DisplayBufferMode mode) {
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switch (mode) {
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// NOTE: APT does in fact use pixel size 3 for R8G8B8A8 captures.
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case DisplayBufferMode::R8G8B8A8:
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case DisplayBufferMode::R8G8B8:
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return 3;
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case DisplayBufferMode::R5G6B5:
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case DisplayBufferMode::R5G5B5A1:
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case DisplayBufferMode::R4G4B4A4:
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return 2;
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case DisplayBufferMode::Unimportable:
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return 0;
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default:
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UNREACHABLE_MSG("Unknown display buffer mode {}", mode);
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return 0;
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}
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}
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Memory::RasterizerFlushVirtualRegion(src, screen_width * height * bpp,
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static void CaptureFrameBuffer(Core::System& system, u32 capture_offset, VAddr src, u32 height,
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DisplayBufferMode mode) {
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const auto bpp = GetDisplayBufferModePixelSize(mode);
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if (bpp == 0) {
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return;
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}
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Memory::RasterizerFlushVirtualRegion(src, GSP::FRAMEBUFFER_WIDTH * height * bpp,
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Memory::FlushMode::Flush);
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auto dst_vaddr = screen_capture_base_vaddr + capture_offset;
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// Address in VRAM that APT copies framebuffer captures to.
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constexpr VAddr screen_capture_base_vaddr = Memory::VRAM_VADDR + 0x500000;
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const auto dst_vaddr = screen_capture_base_vaddr + capture_offset;
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auto dst_ptr = system.Memory().GetPointer(dst_vaddr);
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if (!dst_ptr) {
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LOG_ERROR(Service_APT,
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"Could not retrieve framebuffer capture destination buffer, skipping screen.");
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return;
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}
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const auto src_ptr = system.Memory().GetPointer(src);
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if (!src_ptr) {
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LOG_ERROR(Service_APT,
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"Could not retrieve framebuffer capture source buffer, skipping screen.");
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return;
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}
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for (u32 y = 0; y < height; y++) {
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for (u32 x = 0; x < screen_width; x++) {
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auto dst_offset =
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VideoCore::GetMortonOffset(x, y, bpp) + (y & ~7) * screen_width_pow2 * bpp;
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auto src_offset = bpp * (screen_width * y + x);
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for (u32 x = 0; x < GSP::FRAMEBUFFER_WIDTH; x++) {
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const auto dst_offset = VideoCore::GetMortonOffset(x, y, bpp) +
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(y & ~7) * GSP::FRAMEBUFFER_WIDTH_POW2 * bpp;
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const auto src_offset = bpp * (GSP::FRAMEBUFFER_WIDTH * y + x);
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std::memcpy(dst_ptr + dst_offset, src_ptr + src_offset, bpp);
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}
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}
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Memory::RasterizerFlushVirtualRegion(dst_vaddr, screen_width_pow2 * height * bpp,
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Memory::RasterizerFlushVirtualRegion(dst_vaddr, GSP::FRAMEBUFFER_WIDTH_POW2 * height * bpp,
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Memory::FlushMode::Invalidate);
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}
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void AppletManager::CaptureFrameBuffers() {
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auto gsp =
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Core::System::GetInstance().ServiceManager().GetService<Service::GSP::GSP_GPU>("gsp::Gpu");
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auto active_thread_id = gsp->GetActiveThreadId();
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auto top_screen = gsp->GetFrameBufferInfo(active_thread_id, 0);
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auto bottom_screen = gsp->GetFrameBufferInfo(active_thread_id, 1);
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auto top_fb = top_screen->framebuffer_info[top_screen->index];
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auto bottom_fb = bottom_screen->framebuffer_info[bottom_screen->index];
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CaptureFrameBuffer(system, capture_info->bottom_screen_left_offset, bottom_fb.address_left, 320,
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CaptureFrameBuffer(system, capture_info->bottom_screen_left_offset,
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GSP::FRAMEBUFFER_SAVE_AREA_BOTTOM, GSP::BOTTOM_FRAMEBUFFER_HEIGHT,
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capture_info->bottom_screen_format);
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CaptureFrameBuffer(system, capture_info->top_screen_left_offset, top_fb.address_left, 400,
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CaptureFrameBuffer(system, capture_info->top_screen_left_offset,
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GSP::FRAMEBUFFER_SAVE_AREA_TOP_LEFT, GSP::TOP_FRAMEBUFFER_HEIGHT,
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capture_info->top_screen_format);
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if (capture_info->is_3d) {
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CaptureFrameBuffer(system, capture_info->top_screen_right_offset, top_fb.address_right, 400,
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CaptureFrameBuffer(system, capture_info->top_screen_right_offset,
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GSP::FRAMEBUFFER_SAVE_AREA_TOP_RIGHT, GSP::TOP_FRAMEBUFFER_HEIGHT,
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capture_info->top_screen_format);
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}
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}
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@ -210,6 +210,15 @@ private:
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friend class boost::serialization::access;
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};
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enum class DisplayBufferMode : u32_le {
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R8G8B8A8 = 0,
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R8G8B8 = 1,
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R5G6B5 = 2,
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R5G5B5A1 = 3,
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R4G4B4A4 = 4,
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Unimportable = 0xFFFFFFFF,
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};
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/// Used by the application to pass information about the current framebuffer to applets.
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struct CaptureBufferInfo {
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u32_le size;
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@ -217,10 +226,10 @@ struct CaptureBufferInfo {
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INSERT_PADDING_BYTES(0x3); // Padding for alignment
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u32_le top_screen_left_offset;
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u32_le top_screen_right_offset;
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u32_le top_screen_format;
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DisplayBufferMode top_screen_format;
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u32_le bottom_screen_left_offset;
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u32_le bottom_screen_right_offset;
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u32_le bottom_screen_format;
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DisplayBufferMode bottom_screen_format;
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private:
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template <class Archive>
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@ -333,16 +342,27 @@ public:
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}
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return buffer;
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}
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void SetCaptureInfo(std::vector<u8> buffer) {
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ASSERT_MSG(buffer.size() >= sizeof(CaptureBufferInfo), "CaptureBufferInfo is too small.");
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capture_info.emplace();
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std::memcpy(&capture_info.get(), buffer.data(), sizeof(CaptureBufferInfo));
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}
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std::vector<u8> ReceiveCaptureBufferInfo() {
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std::vector<u8> buffer = GetCaptureInfo();
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capture_info.reset();
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std::vector<u8> buffer;
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if (capture_buffer_info) {
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buffer.resize(sizeof(CaptureBufferInfo));
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std::memcpy(buffer.data(), &capture_buffer_info.get(), sizeof(CaptureBufferInfo));
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capture_buffer_info.reset();
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}
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return buffer;
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}
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void SendCaptureBufferInfo(std::vector<u8> buffer) {
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ASSERT_MSG(buffer.size() >= sizeof(CaptureBufferInfo), "CaptureBufferInfo is too small.");
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capture_info.emplace();
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std::memcpy(&capture_info.get(), buffer.data(), sizeof(CaptureBufferInfo));
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capture_buffer_info.emplace();
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std::memcpy(&capture_buffer_info.get(), buffer.data(), sizeof(CaptureBufferInfo));
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}
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ResultCode PrepareToStartApplication(u64 title_id, FS::MediaType media_type);
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@ -395,6 +415,7 @@ private:
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boost::optional<DeliverArg> deliver_arg{};
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boost::optional<CaptureBufferInfo> capture_info;
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boost::optional<CaptureBufferInfo> capture_buffer_info;
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static constexpr std::size_t NumAppletSlot = 4;
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@ -500,6 +521,8 @@ private:
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ar& delayed_parameter;
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ar& app_start_parameters;
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ar& deliver_arg;
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ar& capture_info;
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ar& capture_buffer_info;
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ar& active_slot;
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ar& last_library_launcher_slot;
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ar& last_prepared_library_applet;
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@ -704,18 +704,73 @@ void GSP_GPU::ImportDisplayCaptureInfo(Kernel::HLERequestContext& ctx) {
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LOG_WARNING(Service_GSP, "called");
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}
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static void CopyFrameBuffer(Core::System& system, VAddr dst, VAddr src, u32 stride, u32 lines) {
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auto dst_ptr = system.Memory().GetPointer(dst);
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const auto src_ptr = system.Memory().GetPointer(src);
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if (!dst_ptr || !src_ptr) {
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LOG_WARNING(Service_GSP,
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"Could not resolve pointers for framebuffer capture, skipping screen.");
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return;
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}
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Memory::RasterizerFlushVirtualRegion(src, stride * lines, Memory::FlushMode::Flush);
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std::memcpy(dst_ptr, src_ptr, stride * lines);
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Memory::RasterizerFlushVirtualRegion(dst, stride * lines, Memory::FlushMode::Invalidate);
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}
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void GSP_GPU::SaveVramSysArea(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp(ctx);
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if (active_thread_id == std::numeric_limits<u32>::max()) {
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LOG_WARNING(Service_GSP, "Called without an active thread.");
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// TODO: Find the right error code.
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(-1);
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return;
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}
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LOG_INFO(Service_GSP, "called");
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// TODO: This should also DMA framebuffers into VRAM and save LCD register state.
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// TODO: This should also save LCD register state.
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Memory::RasterizerFlushVirtualRegion(Memory::VRAM_VADDR, Memory::VRAM_SIZE,
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Memory::FlushMode::Flush);
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auto vram = system.Memory().GetPointer(Memory::VRAM_VADDR);
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const auto vram = system.Memory().GetPointer(Memory::VRAM_VADDR);
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saved_vram.emplace(std::vector<u8>(Memory::VRAM_SIZE));
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std::memcpy(saved_vram.get().data(), vram, Memory::VRAM_SIZE);
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const auto top_screen = GetFrameBufferInfo(active_thread_id, 0);
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if (top_screen) {
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const auto top_fb = top_screen->framebuffer_info[top_screen->index];
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if (top_fb.address_left) {
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CopyFrameBuffer(system, FRAMEBUFFER_SAVE_AREA_TOP_LEFT, top_fb.address_left,
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top_fb.stride, TOP_FRAMEBUFFER_HEIGHT);
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} else {
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LOG_WARNING(Service_GSP, "No framebuffer bound to top left screen, skipping capture.");
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}
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if (top_fb.address_right) {
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CopyFrameBuffer(system, FRAMEBUFFER_SAVE_AREA_TOP_RIGHT, top_fb.address_right,
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top_fb.stride, TOP_FRAMEBUFFER_HEIGHT);
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} else {
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LOG_WARNING(Service_GSP, "No framebuffer bound to top right screen, skipping capture.");
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}
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} else {
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LOG_WARNING(Service_GSP, "No top screen bound, skipping capture.");
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}
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const auto bottom_screen = GetFrameBufferInfo(active_thread_id, 1);
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if (bottom_screen) {
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const auto bottom_fb = bottom_screen->framebuffer_info[bottom_screen->index];
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if (bottom_fb.address_left) {
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CopyFrameBuffer(system, FRAMEBUFFER_SAVE_AREA_BOTTOM, bottom_fb.address_left,
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bottom_fb.stride, BOTTOM_FRAMEBUFFER_HEIGHT);
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} else {
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LOG_WARNING(Service_GSP, "No framebuffer bound to bottom screen, skipping capture.");
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}
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} else {
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LOG_WARNING(Service_GSP, "No bottom screen bound, skipping capture.");
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}
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
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rb.Push(RESULT_SUCCESS);
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}
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@ -819,7 +874,7 @@ SessionData* GSP_GPU::FindRegisteredThreadData(u32 thread_id) {
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return nullptr;
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}
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GSP_GPU::GSP_GPU(Core::System& system) : ServiceFramework("gsp::Gpu", 2), system(system) {
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GSP_GPU::GSP_GPU(Core::System& system) : ServiceFramework("gsp::Gpu", 4), system(system) {
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static const FunctionInfo functions[] = {
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// clang-format off
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{0x0001, &GSP_GPU::WriteHWRegs, "WriteHWRegs"},
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@ -186,6 +186,17 @@ struct CommandBuffer {
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};
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static_assert(sizeof(CommandBuffer) == 0x200, "CommandBuffer struct has incorrect size");
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constexpr u32 FRAMEBUFFER_WIDTH = 240;
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constexpr u32 FRAMEBUFFER_WIDTH_POW2 = 256;
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constexpr u32 TOP_FRAMEBUFFER_HEIGHT = 400;
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constexpr u32 BOTTOM_FRAMEBUFFER_HEIGHT = 320;
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constexpr u32 FRAMEBUFFER_HEIGHT_POW2 = 512;
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// These are the VRAM addresses that GSP copies framebuffers to in SaveVramSysArea.
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constexpr VAddr FRAMEBUFFER_SAVE_AREA_TOP_LEFT = Memory::VRAM_VADDR + 0x273000;
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constexpr VAddr FRAMEBUFFER_SAVE_AREA_TOP_RIGHT = Memory::VRAM_VADDR + 0x2B9800;
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constexpr VAddr FRAMEBUFFER_SAVE_AREA_BOTTOM = Memory::VRAM_VADDR + 0x4C7800;
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class GSP_GPU;
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class SessionData : public Kernel::SessionRequestHandler::SessionDataBase {
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