fix taking as copy instead of ref

major cause for temporary allocations

src/chat_gui4.cpp

@@ -668,7 +668,7 @@ float ChatGui4::render(float time_delta) {
 									// TODO: dedup?
 									ImGui::TextDisabled("_");
 								} else {
-									const auto list = msg_reg.get<Message::Components::ReceivedBy>(e).ts;
+									const auto& list = msg_reg.get<Message::Components::ReceivedBy>(e).ts;
 									// wrongly assumes contacts never get removed from a group
 									if (sub_contacts != nullptr && list.size() < sub_contacts->size()) {
 										// if partically delivered
@@ -915,39 +915,36 @@ float ChatGui4::render(float time_delta) {
 						);
 					}
 
-					{
+					// TODO: add support for more than images
-						// TODO: add support for more than images
+					// !!! polling each frame can be VERY expensive !!!
-						// !!! polling each frame can be VERY expensive !!!
+					//const auto* mime_type = clipboardHasImage();
-						//const auto* mime_type = clipboardHasImage();
+					//ImGui::BeginDisabled(mime_type == nullptr);
-						//ImGui::BeginDisabled(mime_type == nullptr);
+					if (ImGui::Button("paste\nfile", {-FLT_MIN, 0})) {
-						if (ImGui::Button("paste\nfile", {-FLT_MIN, 0})) {
+						if (const auto* imt = clipboardHasImage(); imt != nullptr) { // making sure
-							if (const auto* imt = clipboardHasImage(); imt != nullptr) { // making sure
+							pasteFile(imt);
-								pasteFile(imt);
+						} else if (const auto* fpmt = clipboardHasFileList(); fpmt != nullptr) {
-							} else if (const auto* fpmt = clipboardHasFileList(); fpmt != nullptr) {
+							pasteFile(fpmt);
-								pasteFile(fpmt);
-							}
-						//} else if (ImGui::IsItemClicked(ImGuiMouseButton_Right)) {
-						} else if (ImGui::BeginPopupContextItem(nullptr, ImGuiMouseButton_Right)) {
-							// TODO: use list instead
-							const static std::vector<const char*> image_mime_types {
-								// add apng?
-								"image/png",
-								"image/webp",
-								"image/gif",
-								"image/jpeg",
-								"image/bmp",
-								"image/qoi",
-							};
-
-							for (const char* mime_type : image_mime_types) {
-								if (ImGui::MenuItem(mime_type)) {
-									pasteFile(mime_type);
-								}
-							}
-							ImGui::EndPopup();
 						}
-						//ImGui::EndDisabled();
+					} else if (ImGui::BeginPopupContextItem(nullptr, ImGuiMouseButton_Right)) {
+						// TODO: use list instead
+						const static std::vector<const char*> image_mime_types {
+							// add apng?
+							"image/png",
+							"image/webp",
+							"image/gif",
+							"image/jpeg",
+							"image/bmp",
+							"image/qoi",
+						};
+
+						for (const char* mime_type : image_mime_types) {
+							if (ImGui::MenuItem(mime_type)) {
+								pasteFile(mime_type);
+							}
+						}
+						ImGui::EndPopup();
 					}
+					//ImGui::EndDisabled();
 				}
 				ImGui::EndChild();
 

src/image_loader_webp.cpp

@@ -104,8 +104,11 @@ std::vector<uint8_t> ImageEncoderWebP::encodeToMemoryRGBA(const ImageResult& inp
 	// Tune 'enc_options' as needed.
 	enc_options.minimize_size = 1; // might be slow? optimize for size, no key-frame insertion
 
-	WebPAnimEncoder* enc = WebPAnimEncoderNew(input_image.width, input_image.height, &enc_options);
+	std::unique_ptr<WebPAnimEncoder, decltype(&WebPAnimEncoderDelete)> enc {
-	if (enc == nullptr) {
+		WebPAnimEncoderNew(input_image.width, input_image.height, &enc_options),
+		&WebPAnimEncoderDelete
+	};
+	if (!enc) {
 		std::cerr << "IEWebP error: WebPAnimEncoderNew()\n";
 		return {};
 	}
@@ -113,10 +116,8 @@ std::vector<uint8_t> ImageEncoderWebP::encodeToMemoryRGBA(const ImageResult& inp
 	int prev_timestamp = 0;
 	for (const auto& frame : input_image.frames) {
 		WebPConfig config;
-		//WebPConfigInit(&config);
 		if (!WebPConfigPreset(&config, WebPPreset::WEBP_PRESET_DEFAULT, quality)) {
 			std::cerr << "IEWebP error: WebPConfigPreset()\n";
-			WebPAnimEncoderDelete(enc);
 			return {};
 		}
 		//WebPConfigLosslessPreset(&config, 6); // 9 for max compression
@@ -124,39 +125,34 @@ std::vector<uint8_t> ImageEncoderWebP::encodeToMemoryRGBA(const ImageResult& inp
 		WebPPicture frame_webp;
 		if (!WebPPictureInit(&frame_webp)) {
 			std::cerr << "IEWebP error: WebPPictureInit()\n";
-			WebPAnimEncoderDelete(enc);
 			return {};
 		}
 		frame_webp.width = input_image.width;
 		frame_webp.height = input_image.height;
 		if (!WebPPictureImportRGBA(&frame_webp, frame.data.data(), 4*input_image.width)) {
 			std::cerr << "IEWebP error: WebPPictureImportRGBA()\n";
-			WebPAnimEncoderDelete(enc);
 			return {};
 		}
 
-		if (!WebPAnimEncoderAdd(enc, &frame_webp, prev_timestamp, &config)) {
+		if (!WebPAnimEncoderAdd(enc.get(), &frame_webp, prev_timestamp, &config)) {
 			std::cerr << "IEWebP error: WebPAnimEncoderAdd()\n";
 			WebPPictureFree(&frame_webp);
-			WebPAnimEncoderDelete(enc);
 			return {};
 		}
 		prev_timestamp += frame.ms;
+		WebPPictureFree(&frame_webp);
 	}
-	if (!WebPAnimEncoderAdd(enc, NULL, prev_timestamp, NULL)) { // tell anim encoder its the end
+	if (!WebPAnimEncoderAdd(enc.get(), NULL, prev_timestamp, NULL)) { // tell anim encoder its the end
 		std::cerr << "IEWebP error: WebPAnimEncoderAdd(NULL)\n";
-		WebPAnimEncoderDelete(enc);
 		return {};
 	}
 
 	WebPData webp_data;
 	WebPDataInit(&webp_data);
-	if (!WebPAnimEncoderAssemble(enc, &webp_data)) {
+	if (!WebPAnimEncoderAssemble(enc.get(), &webp_data)) {
 		std::cerr << "IEWebP error: WebPAnimEncoderAdd(NULL)\n";
-		WebPAnimEncoderDelete(enc);
 		return {};
 	}
-	WebPAnimEncoderDelete(enc);
 
 	// Write the 'webp_data' to a file, or re-mux it further.
 	// TODO: make it not a copy