M5Paper: draw bitmap to fixed size with M5GFX

main.cpp

#include <M5EPD.h>
#include <M5GFX.h>

void setup() {
  M5.begin();

  M5GFX display;
  display.begin();
  display.invertDisplay(false);
  display.clear(TFT_WHITE);

  float dx, dy;
  M5Canvas canvas(&display);
  canvas.setPsram(true);

  canvas.createFromBmpFile(SD, "/inaba.bmp");
  dx = 400.f / static_cast<float>(canvas.width());
  dy = 400.f / static_cast<float>(canvas.height());
  canvas.pushRotateZoomWithAA(270, 240, 0.f, dx, dy);

  canvas.createFromBmpFile(SD, "/inaba2.bmp");
  dx = 400.f / static_cast<float>(canvas.width());
  dy = 400.f / static_cast<float>(canvas.height());
  canvas.pushRotateZoomWithAA(270, 720, 0.f, dx, dy);
}

void loop() {
}