Merge "Remove nputikhin@google.com from OWNERS" into main am: bc08bb024e

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/gbm/+/3191010

Change-Id: I59e731ae7bc6606b54c9f006a88a1dca3250d312
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
tree: 7335891701eb4ec5ada1c4f4f4df0d392f284726
  1. src/
  2. .cargo_vcs_info.json
  3. Android.bp
  4. Cargo.toml
  5. Cargo.toml.orig
  6. cargo_embargo.json
  7. CHANGELOG.md
  8. LICENSE
  9. METADATA
  10. MODULE_LICENSE_MIT
  11. OWNERS
  12. README.md
README.md

Safe libgbm bindings for rust

The Generic Buffer Manager

This module provides an abstraction that the caller can use to request a buffer from the underlying memory management system for the platform.

This allows the creation of portable code whilst still allowing access to the underlying memory manager.

This library is best used in combination with drm-rs, provided through the drm-support feature.

Usage

Add to your Cargo.toml

gbm = "0.14.2"

Example

extern crate drm;
extern crate gbm;

use drm::control::{self, crtc, framebuffer};
use gbm::{BufferObjectFlags, Device, Format};

// ... init your drm device ...
let drm = init_drm_device();

// init a GBM device
let gbm = Device::new(drm).unwrap();

// create a buffer
let mut bo = gbm
    .create_buffer_object::<()>(
        1280,
        720,
        Format::Argb8888,
        BufferObjectFlags::SCANOUT | BufferObjectFlags::WRITE,
    )
    .unwrap();

// write something to it (usually use import or egl rendering instead)
let buffer = {
    let mut buffer = Vec::new();
    for i in 0..1280 {
        for _ in 0..720 {
            buffer.push(if i % 2 == 0 { 0 } else { 255 });
        }
    }
    buffer
};
bo.write(&buffer).unwrap();

// create a framebuffer from our buffer
let fb = gbm.add_framebuffer(&bo, 32, 32).unwrap();

// display it (and get a crtc, mode and connector before)
gbm.set_crtc(crtc_handle, Some(fb), (0, 0), &[con], Some(mode))
    .unwrap();