keira: wasting time on fun stuff (closes #82)

firmware/keira/platformio.ini

@@ -14,6 +14,7 @@ lib_deps =
 	https://github.com/moononournation/arduino-nofrendo.git
 	bitbank2/PNGenc @ ^1.1.1
 	bblanchon/ArduinoJson @ ^7.0.4
+	bitbank2/AnimatedGIF@^2.1.0
 lib_extra_dirs = ./lib
 build_flags = -D LILKA_VERSION=1
 board_build.partitions = ./legacy/v1_partitions.csv
@@ -30,5 +31,6 @@ lib_deps =
 	bblanchon/ArduinoJson @ ^7.0.4
 	lennarthennigs/ESP Telnet @ ^2.2.1
 	https://github.com/earlephilhower/ESP8266Audio.git
+	bitbank2/AnimatedGIF@^2.1.0
 lib_extra_dirs = ./lib
 extra_scripts = targets.py

firmware/keira/src/apps/demos/petpet.cpp

@@ -0,0 +1,68 @@
+#include <AnimatedGIF.h>
+
+#include "petpet.h"
+#include "petpet_gif.h"
+#include "utils/defer.h"
+
+// Idea by @imbirWIthSugar
+
+PetPetApp::PetPetApp() : App("PetPet") {
+}
+
+void GIFDraw(GIFDRAW* pDraw) {
+    // Called once per line
+    PetPetApp* app = static_cast<PetPetApp*>(pDraw->pUser);
+    if (pDraw->y == 0) {
+        // First line of the frame
+        app->canvas->fillScreen(lilka::colors::Black);
+    }
+    int16_t x = (app->canvas->width() - petpet_gif_width) / 2;
+    int16_t y = (app->canvas->height() - petpet_gif_height) / 2 + pDraw->y;
+    uint16_t* pixels = reinterpret_cast<uint16_t*>(pDraw->pPixels);
+    if (pDraw->ucHasTransparency) {
+        app->canvas->draw16bitRGBBitmapWithTranColor(
+            x, y, pixels, pDraw->pPalette[pDraw->ucTransparent], petpet_gif_width, 1
+        );
+    } else {
+        app->canvas->draw16bitRGBBitmap(x, y, pixels, petpet_gif_width, 1);
+    }
+    if (pDraw->y == petpet_gif_height - 1) {
+        // Last line of the frame
+        app->queueDraw();
+    }
+}
+
+void* GIFAlloc(uint32_t u32Size) {
+    return ps_malloc(u32Size);
+}
+
+void GIFFree(void* p) {
+    free(p);
+}
+
+void PetPetApp::run() {
+    AnimatedGIF* gif = new AnimatedGIF();
+    std::unique_ptr<AnimatedGIF> gif_ptr(gif);
+
+    gif->begin();
+    if (!gif->open(const_cast<uint8_t*>(petpet_gif), petpet_gif_size, GIFDraw)) {
+        lilka::serial_log("Failed to open GIF");
+        return;
+    }
+    Defer closeGif([&gif] { gif->close(); });
+
+    if (gif->allocFrameBuf(GIFAlloc) != GIF_SUCCESS) {
+        lilka::serial_log("Failed to allocate frame buffer");
+        return;
+    }
+    Defer freeFrameBuf([&gif] { gif->freeFrameBuf(GIFFree); });
+
+    gif->setDrawType(GIF_DRAW_COOKED);
+    while (1) {
+        gif->playFrame(true, NULL, this);
+        lilka::State state = lilka::controller.getState();
+        if (state.a.justPressed) {
+            break;
+        }
+    }
+}

firmware/keira/src/apps/demos/petpet.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "app.h"
+
+class PetPetApp : public App {
+public:
+    PetPetApp();
+
+private:
+    void run() override;
+};