83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
#include "capture.h"
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#include <functional>
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#include "external/rapidjson/document.h"
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#include "hooks/graphics/graphics.h"
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#include "util/crypt.h"
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using namespace std::placeholders;
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using namespace rapidjson;
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namespace api::modules {
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static thread_local std::vector<uint8_t> CAPTURE_BUFFER;
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Capture::Capture() : Module("capture") {
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functions["get_screens"] = std::bind(&Capture::get_screens, this, _1, _2);
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functions["get_jpg"] = std::bind(&Capture::get_jpg, this, _1, _2);
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}
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/**
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* get_screens()
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*/
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void Capture::get_screens(Request &req, Response &res) {
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// aquire screens
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std::vector<int> screens;
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graphics_screens_get(screens);
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// add screens to response
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for (auto &screen : screens) {
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res.add_data(screen);
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}
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}
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/**
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* get_jpg([screen=0, quality=70, downscale=0, divide=1])
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* screen: uint specifying the window
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* quality: uint in range [0, 100]
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* reduce: uint for dividing image size
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*/
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void Capture::get_jpg(Request &req, Response &res) {
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CAPTURE_BUFFER.reserve(1024 * 128);
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// settings
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int screen = 0;
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int quality = 70;
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int divide = 1;
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if (req.params.Size() > 0 && req.params[0].IsUint())
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screen = req.params[0].GetUint();
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if (req.params.Size() > 1 && req.params[1].IsUint())
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quality = req.params[1].GetUint();
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if (req.params.Size() > 2 && req.params[2].IsUint())
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divide = req.params[2].GetUint();
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// receive JPEG data
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uint64_t timestamp = 0;
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int width = 0;
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int height = 0;
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graphics_capture_trigger(screen);
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bool success = graphics_capture_receive_jpeg(screen, [] (uint8_t byte) {
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CAPTURE_BUFFER.push_back(byte);
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}, true, quality, true, divide, ×tamp, &width, &height);
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if (!success) {
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return;
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}
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// encode to base64
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auto encoded = crypt::base64_encode(
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CAPTURE_BUFFER.data(),
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CAPTURE_BUFFER.size());
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// clear buffer
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CAPTURE_BUFFER.clear();
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// add data to response
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Value data;
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data.SetString(encoded.c_str(), encoded.length(), res.doc()->GetAllocator());
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res.add_data(timestamp);
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res.add_data(width);
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res.add_data(height);
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res.add_data(data);
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}
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}
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