Meziu
2 years ago
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GitHub
46 changed files with 514 additions and 403 deletions
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use ctru::prelude::*; |
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use ctru::services::gfx::{Flush, Screen, Swap}; |
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/// Ferris image taken from <https://rustacean.net> and scaled down to 320x240px.
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/// To regenerate the data, you will need to install `imagemagick` and run this
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/// command from the `examples` directory:
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///
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/// ```sh
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/// magick assets/ferris.png -channel-fx "red<=>blue" -rotate 90 assets/ferris.rgb
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/// ```
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///
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/// This creates an image appropriate for the default frame buffer format of
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/// [`Bgr8`](ctru::services::gspgpu::FramebufferFormat::Bgr8)
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/// and rotates the image 90° to account for the portrait mode screen.
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static IMAGE: &[u8] = include_bytes!("assets/ferris.rgb"); |
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fn main() { |
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ctru::use_panic_handler(); |
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let gfx = Gfx::new().expect("Couldn't obtain GFX controller"); |
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let mut hid = Hid::new().expect("Couldn't obtain HID controller"); |
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let apt = Apt::new().expect("Couldn't obtain APT controller"); |
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let _console = Console::new(gfx.top_screen.borrow_mut()); |
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println!("\x1b[21;4HPress Start to exit, or A to flip the image."); |
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let mut bottom_screen = gfx.bottom_screen.borrow_mut(); |
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// We don't need double buffering in this example.
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// In this way we can draw our image only once on screen.
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bottom_screen.set_double_buffering(false); |
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// Swapping buffers commits the change from the line above.
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bottom_screen.swap_buffers(); |
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// 3 bytes per pixel, we just want to reverse the pixels but not individual bytes
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let flipped_image: Vec<_> = IMAGE.chunks(3).rev().flatten().copied().collect(); |
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let mut image_bytes = IMAGE; |
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// Main loop
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while apt.main_loop() { |
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//Scan all the inputs. This should be done once for each frame
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hid.scan_input(); |
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if hid.keys_down().contains(KeyPad::START) { |
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break; |
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} |
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// We assume the image is the correct size already, so we drop width + height.
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let frame_buffer = bottom_screen.raw_framebuffer(); |
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if hid.keys_down().contains(KeyPad::A) { |
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image_bytes = if std::ptr::eq(image_bytes, IMAGE) { |
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&flipped_image[..] |
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} else { |
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IMAGE |
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}; |
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} |
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// this copies more than necessary (once per frame) but it's fine...
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unsafe { |
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frame_buffer |
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.ptr |
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.copy_from(image_bytes.as_ptr(), image_bytes.len()); |
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} |
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// Flush framebuffers. Since we're not using double buffering,
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// this will render the pixels immediately
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bottom_screen.flush_buffers(); |
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//Wait for VBlank
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gfx.wait_for_vblank(); |
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} |
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} |
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@ -0,0 +1,49 @@
@@ -0,0 +1,49 @@
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use ctru::prelude::*; |
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fn main() { |
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ctru::use_panic_handler(); |
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let gfx = Gfx::new().expect("Couldn't obtain GFX controller"); |
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let mut hid = Hid::new().expect("Couldn't obtain HID controller"); |
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let apt = Apt::new().expect("Couldn't obtain APT controller"); |
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let console = Console::new(gfx.top_screen.borrow_mut()); |
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// We'll hold the previous touch position for comparison.
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let mut old_touch: (u16, u16) = (0, 0); |
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println!("\x1b[29;16HPress Start to exit"); |
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while apt.main_loop() { |
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hid.scan_input(); |
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if hid.keys_down().contains(KeyPad::START) { |
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break; |
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} |
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// Get X and Y coordinates of the touch point.
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// The touch screen is 320x240.
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let touch: (u16, u16) = hid.touch_position(); |
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// We only want to print the position when it's different
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// from what it was on the previous frame
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if touch != old_touch { |
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// Special case for when the user lifts the stylus/finger from the screen.
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// This is done to avoid some screen tearing.
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if touch == (0, 0) { |
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console.clear(); |
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// Print again because we just cleared the screen
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println!("\x1b[29;16HPress Start to exit"); |
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} |
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// Move the cursor back to the top of the screen and print the coordinates
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print!("\x1b[1;1HTouch Screen position: {:#?}", touch); |
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} |
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// Save our current touch position for the next frame
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old_touch = touch; |
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gfx.wait_for_vblank(); |
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} |
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} |
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