start texture cache for contacts (avatars)

src/texture_cache.cpp

@@ -0,0 +1,59 @@
+#include "./texture_cache.hpp"
+
+#include <chrono>
+
+void TextureEntry::doAnimation(const uint64_t ts_now) {
+	if (frame_duration.size() > 1) { // is animation
+		do { // why is this loop so ugly
+			const uint64_t duration = getDuration();
+			if (ts_now - timestamp_last_rendered >= duration) {
+				timestamp_last_rendered += duration;
+				next();
+			} else {
+				break;
+			}
+		} while(true);
+	} else {
+		timestamp_last_rendered = ts_now;
+	}
+}
+
+TextureEntry generateTestAnim(TextureUploaderI& tu) {
+	TextureEntry new_entry;
+	new_entry.timestamp_last_rendered = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
+	new_entry.current_texture = 0;
+	for (size_t i = 0; i < 4; i++) {
+		// hack
+		// generate frame
+		const size_t width {2};
+		const size_t height {2};
+		std::array<uint8_t, width*height*4> pixels;
+		for (size_t pen = 0; pen < width*height; pen++) {
+			if (pen == i) {
+				pixels[pen*4+0] = 0xff;
+				pixels[pen*4+1] = 0xff;
+				pixels[pen*4+2] = 0xff;
+				pixels[pen*4+3] = 0xff;
+			} else {
+				pixels[pen*4+0] = 0x00;
+				pixels[pen*4+1] = 0x00;
+				pixels[pen*4+2] = 0x00;
+				pixels[pen*4+3] = 0xff;
+			}
+		}
+
+		const auto n_t = tu.uploadRGBA(pixels.data(), width, height);
+
+		// this is so ugly
+		new_entry.textures.emplace_back(n_t);
+		new_entry.frame_duration.emplace_back(250);
+	}
+	new_entry.width = 2;
+	new_entry.height = 2;
+	return new_entry;
+}
+
+uint64_t getNowMS(void) {
+	return std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
+}
+