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use skia;
use euclid::size::Size2D;
use gleam::gl;
use std::ptr;
use std::sync::Arc;
#[cfg(target_os="macos")]
pub use gl_context_cgl::GLPlatformContext;
#[cfg(target_os="macos")]
pub use gl_context_cgl::PlatformDisplayData;
#[cfg(target_os="linux")]
pub use gl_context_glx::GLPlatformContext;
#[cfg(target_os="linux")]
pub use gl_context_glx::PlatformDisplayData;
#[cfg(target_os="linux")]
pub use gl_rasterization_context::GLRasterizationContext;
#[cfg(target_os="android")]
pub use gl_context_android::GLPlatformContext;
#[cfg(target_os="android")]
pub use gl_context_android::PlatformDisplayData;
#[cfg(target_os="windows")]
pub use gl_context_wgl::GLPlatformContext;
#[cfg(target_os="windows")]
pub use gl_context_wgl::PlatformDisplayData;
pub struct GLContext {
pub platform_context: GLPlatformContext,
pub gr_context: skia::SkiaGrContextRef,
pub gl_interface: skia::SkiaGrGLInterfaceRef,
pub size: Size2D<i32>,
}
impl Drop for GLContext {
fn drop(&mut self) {
self.platform_context.make_current();
unsafe {
skia::SkiaGrContextRelease(self.gr_context);
skia::SkiaGrGLInterfaceRelease(self.gl_interface);
}
}
}
impl GLContext {
pub fn new(platform_display_data: PlatformDisplayData,
size: Size2D<i32>)
-> Option<Arc<GLContext>> {
let platform_context = GLPlatformContext::new(platform_display_data, size);
let platform_context = match platform_context {
Some(platform_context) => platform_context,
None => return None,
};
platform_context.make_current();
unsafe {
let gl_interface = skia::SkiaGrGLCreateNativeInterface();
if gl_interface == ptr::null_mut() {
platform_context.drop_current_context();
return None;
}
let gr_context = skia::SkiaGrContextCreate(gl_interface);
if gr_context == ptr::null_mut() {
platform_context.drop_current_context();
return None;
}
Some(Arc::new(GLContext {
platform_context: platform_context,
gr_context: gr_context,
gl_interface: gl_interface,
size: size,
}))
}
}
pub fn flush(&self) {
self.make_current();
gl::flush();
}
pub fn make_current(&self) {
self.platform_context.make_current();
}
pub fn drop_current_context(&self) {
self.platform_context.drop_current_context();
}
}