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Quelle bindings.rs
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#![allow(clippy::missing_safety_doc)]
#![allow(clippy::not_unsafe_ptr_arg_deref)]
use gleam::gl;
use std::cell::RefCell;
#[cfg(not(any(target_os = "macos", target_os = "ios")))]
use std::ffi::OsString;
use std::ffi::{CStr, CString};
use std::io::Cursor;
use std::marker::PhantomData;
use std::ops::Range;
#[cfg(target_os = "android")]
use std::os::raw::c_int;
use std::os::raw::{c_char, c_float, c_void};
#[cfg(not(any(target_os = "macos", target_os = "ios", target_os = "windows")))]
use std::os::unix::ffi::OsStringExt;
#[cfg(target_os = "windows")]
use std::os::windows::ffi::OsStringExt;
use std::path::PathBuf;
use std::rc::Rc;
use std::sync::atomic::{AtomicUsize, Ordering};
use std::sync::Arc;
use std::time::Duration;
use std::{env, mem, ptr, slice};
use thin_vec::ThinVec;
use webrender::glyph_rasterizer::GlyphRasterThread;
use webrender::ChunkPool;
use euclid::SideOffsets2D;
use moz2d_renderer::Moz2dBlobImageHandler;
use nsstring::nsAString;
use program_cache::{remove_disk_cache, WrProgramCache};
use tracy_rs::register_thread_with_profiler;
use webrender::sw_compositor::SwCompositor;
use webrender::{
api::units::*, api::*, create_webrender_instance, render_api::*, set_profiler_hooks, AsyncPropertySampler,
AsyncScreenshotHandle, Compositor, LayerCompositor, CompositorCapabilities, CompositorConfig, CompositorSurfaceTransform, Device,
MappableCompositor, MappedTileInfo, NativeSurfaceId, NativeSurfaceInfo, NativeTileId, PartialPresentCompositor,
PipelineInfo, ProfilerHooks, RecordedFrameHandle, RenderBackendHooks, Renderer, RendererStats,
SWGLCompositeSurfaceInfo, SceneBuilderHooks, ShaderPrecacheFlags, Shaders, SharedShaders, TextureCacheConfig,
UploadMethod, WebRenderOptions, WindowVisibility, ONE_TIME_USAGE_HINT, CompositorInputConfig, CompositorSurfaceUsage,
};
use wr_malloc_size_of::MallocSizeOfOps;
extern "C" {
#[cfg(target_os = "android")]
fn __android_log_write(prio: c_int, tag: *const c_char, text: *const c_char) -> c_int;
}
/// The unique id for WR resource identification.
static NEXT_NAMESPACE_ID: AtomicUsize = AtomicUsize::new(1);
/// Special value handled in this wrapper layer to signify a redundant clip chain.
pub const ROOT_CLIP_CHAIN: u64 = !0;
fn next_namespace_id() -> IdNamespace {
IdNamespace(NEXT_NAMESPACE_ID.fetch_add(1, Ordering::Relaxed) as u32)
}
/// Whether a border should be antialiased.
#[repr(C)]
#[derive(Eq, PartialEq, Copy, Clone)]
pub enum AntialiasBorder {
No = 0,
Yes,
}
/// Used to indicate if an image is opaque, or has an alpha channel.
#[repr(u8)]
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
pub enum OpacityType {
Opaque = 0,
HasAlphaChannel = 1,
}
/// cbindgen:field-names=[mHandle]
/// cbindgen:derive-lt=true
/// cbindgen:derive-lte=true
/// cbindgen:derive-neq=true
type WrEpoch = Epoch;
/// cbindgen:field-names=[mHandle]
/// cbindgen:derive-lt=true
/// cbindgen:derive-lte=true
/// cbindgen:derive-neq=true
pub type WrIdNamespace = IdNamespace;
/// cbindgen:field-names=[mNamespace, mHandle]
type WrDocumentId = DocumentId;
/// cbindgen:field-names=[mNamespace, mHandle]
type WrPipelineId = PipelineId;
/// cbindgen:field-names=[mNamespace, mHandle]
/// cbindgen:derive-neq=true
type WrImageKey = ImageKey;
/// cbindgen:field-names=[mNamespace, mHandle]
pub type WrFontKey = FontKey;
/// cbindgen:field-names=[mNamespace, mHandle]
pub type WrFontInstanceKey = FontInstanceKey;
/// cbindgen:field-names=[mNamespace, mHandle]
type WrYuvColorSpace = YuvColorSpace;
/// cbindgen:field-names=[mNamespace, mHandle]
type WrColorDepth = ColorDepth;
/// cbindgen:field-names=[mNamespace, mHandle]
type WrColorRange = ColorRange;
#[inline]
fn clip_chain_id_to_webrender(id: u64, pipeline_id: WrPipelineId) -> ClipChainId {
if id == ROOT_CLIP_CHAIN {
ClipChainId::INVALID
} else {
ClipChainId(id, pipeline_id)
}
}
#[repr(C)]
pub struct WrSpaceAndClipChain {
space: WrSpatialId,
clip_chain: u64,
}
impl WrSpaceAndClipChain {
fn to_webrender(&self, pipeline_id: WrPipelineId) -> SpaceAndClipInfo {
//Warning: special case here to support dummy clip chain
SpaceAndClipInfo {
spatial_id: self.space.to_webrender(pipeline_id),
clip_chain_id: clip_chain_id_to_webrender(self.clip_chain, pipeline_id),
}
}
}
#[repr(C)]
pub enum WrStackingContextClip {
None,
ClipChain(u64),
}
impl WrStackingContextClip {
fn to_webrender(&self, pipeline_id: WrPipelineId) -> Option<ClipChainId> {
match *self {
WrStackingContextClip::None => None,
WrStackingContextClip::ClipChain(id) => {
if id == ROOT_CLIP_CHAIN {
None
} else {
Some(ClipChainId(id, pipeline_id))
}
},
}
}
}
unsafe fn make_slice<'a, T>(ptr: *const T, len: usize) -> &'a [T] {
if ptr.is_null() {
&[]
} else {
slice::from_raw_parts(ptr, len)
}
}
unsafe fn make_slice_mut<'a, T>(ptr: *mut T, len: usize) -> &'a mut [T] {
if ptr.is_null() {
&mut []
} else {
slice::from_raw_parts_mut(ptr, len)
}
}
pub struct DocumentHandle {
api: RenderApi,
document_id: DocumentId,
// One of the two options below is Some and the other None at all times.
// It would be nice to model with an enum, however it is tricky to express
// moving a variant's content into another variant without moving the
// containing enum.
hit_tester_request: Option<HitTesterRequest>,
hit_tester: Option<Arc<dyn ApiHitTester>>,
}
impl DocumentHandle {
pub fn new(
api: RenderApi,
hit_tester: Option<Arc<dyn ApiHitTester>>,
size: DeviceIntSize,
id: u32,
) -> DocumentHandle {
let doc = api.add_document_with_id(size, id);
let hit_tester_request = if hit_tester.is_none() {
// Request the hit tester early to reduce the likelihood of blocking on the
// first hit testing query.
Some(api.request_hit_tester(doc))
} else {
None
};
DocumentHandle {
api,
document_id: doc,
hit_tester_request,
hit_tester,
}
}
fn ensure_hit_tester(&mut self) -> &Arc<dyn ApiHitTester> {
if let Some(ref ht) = self.hit_tester {
return ht;
}
self.hit_tester = Some(self.hit_tester_request.take().unwrap().resolve());
self.hit_tester.as_ref().unwrap()
}
}
#[repr(C)]
pub struct WrVecU8 {
/// `data` must always be valid for passing to Vec::from_raw_parts.
/// In particular, it must be non-null even if capacity is zero.
data: *mut u8,
length: usize,
capacity: usize,
}
impl WrVecU8 {
fn into_vec(mut self) -> Vec<u8> {
// Clear self and then drop self.
self.flush_into_vec()
}
// Clears self without consuming self.
fn flush_into_vec(&mut self) -> Vec<u8> {
// Create a Vec using Vec::from_raw_parts.
//
// Here are the safety requirements, verbatim from the documentation of `from_raw_parts`:
//
// > * `ptr` must have been allocated using the global allocator, such as via
// > the [`alloc::alloc`] function.
// > * `T` needs to have the same alignment as what `ptr` was allocated with.
// > (`T` having a less strict alignment is not sufficient, the alignment really
// > needs to be equal to satisfy the [`dealloc`] requirement that memory must be
// > allocated and deallocated with the same layout.)
// > * The size of `T` times the `capacity` (ie. the allocated size in bytes) needs
// > to be the same size as the pointer was allocated with. (Because similar to
// > alignment, [`dealloc`] must be called with the same layout `size`.)
// > * `length` needs to be less than or equal to `capacity`.
// > * The first `length` values must be properly initialized values of type `T`.
// > * `capacity` needs to be the capacity that the pointer was allocated with.
// > * The allocated size in bytes must be no larger than `isize::MAX`.
// > See the safety documentation of [`pointer::offset`].
//
// These comments don't say what to do for zero-capacity vecs which don't have
// an allocation. In particular, the requirement "`ptr` must have been allocated"
// is not met for such vecs.
//
// However, the safety requirements of `slice::from_raw_parts` are more explicit
// about the empty case:
//
// > * `data` must be non-null and aligned even for zero-length slices. One
// > reason for this is that enum layout optimizations may rely on references
// > (including slices of any length) being aligned and non-null to distinguish
// > them from other data. You can obtain a pointer that is usable as `data`
// > for zero-length slices using [`NonNull::dangling()`].
//
// For the empty case we follow this requirement rather than the more stringent
// requirement from the `Vec::from_raw_parts` docs.
let vec = unsafe { Vec::from_raw_parts(self.data, self.length, self.capacity) };
self.data = ptr::NonNull::dangling().as_ptr();
self.length = 0;
self.capacity = 0;
vec
}
pub fn as_slice(&self) -> &[u8] {
unsafe { core::slice::from_raw_parts(self.data, self.length) }
}
fn from_vec(mut v: Vec<u8>) -> WrVecU8 {
let w = WrVecU8 {
data: v.as_mut_ptr(),
length: v.len(),
capacity: v.capacity(),
};
mem::forget(v);
w
}
fn reserve(&mut self, len: usize) {
let mut vec = self.flush_into_vec();
vec.reserve(len);
*self = Self::from_vec(vec);
}
fn push_bytes(&mut self, bytes: &[u8]) {
let mut vec = self.flush_into_vec();
vec.extend_from_slice(bytes);
*self = Self::from_vec(vec);
}
}
#[no_mangle]
pub extern "C" fn wr_vec_u8_push_bytes(v: &mut WrVecU8, bytes: ByteSlice) {
v.push_bytes(bytes.as_slice());
}
#[no_mangle]
pub extern "C" fn wr_vec_u8_reserve(v: &mut WrVecU8, len: usize) {
v.reserve(len);
}
#[no_mangle]
pub extern "C" fn wr_vec_u8_free(v: WrVecU8) {
v.into_vec();
}
#[repr(C)]
pub struct ByteSlice<'a> {
buffer: *const u8,
len: usize,
_phantom: PhantomData<&'a ()>,
}
impl<'a> ByteSlice<'a> {
pub fn new(slice: &'a [u8]) -> ByteSlice<'a> {
ByteSlice {
buffer: slice.as_ptr(),
len: slice.len(),
_phantom: PhantomData,
}
}
pub fn as_slice(&self) -> &'a [u8] {
unsafe { make_slice(self.buffer, self.len) }
}
}
#[repr(C)]
pub struct MutByteSlice<'a> {
buffer: *mut u8,
len: usize,
_phantom: PhantomData<&'a ()>,
}
impl<'a> MutByteSlice<'a> {
pub fn new(slice: &'a mut [u8]) -> MutByteSlice<'a> {
let len = slice.len();
MutByteSlice {
buffer: slice.as_mut_ptr(),
len,
_phantom: PhantomData,
}
}
pub fn as_mut_slice(&mut self) -> &'a mut [u8] {
unsafe { make_slice_mut(self.buffer, self.len) }
}
}
#[repr(C)]
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
pub struct WrImageDescriptor {
pub format: ImageFormat,
pub width: i32,
pub height: i32,
pub stride: i32,
pub opacity: OpacityType,
// TODO(gw): Remove this flag (use prim flags instead).
pub prefer_compositor_surface: bool,
}
impl<'a> From<&'a WrImageDescriptor> for ImageDescriptor {
fn from(desc: &'a WrImageDescriptor) -> ImageDescriptor {
let mut flags = ImageDescriptorFlags::empty();
if desc.opacity == OpacityType::Opaque {
flags |= ImageDescriptorFlags::IS_OPAQUE;
}
ImageDescriptor {
size: DeviceIntSize::new(desc.width, desc.height),
stride: if desc.stride != 0 { Some(desc.stride) } else { None },
format: desc.format,
offset: 0,
flags,
}
}
}
#[repr(u32)]
#[allow(dead_code)]
enum WrExternalImageType {
RawData,
NativeTexture,
Invalid,
}
#[repr(C)]
struct WrExternalImage {
image_type: WrExternalImageType,
// external texture handle
handle: u32,
// external texture coordinate
u0: f32,
v0: f32,
u1: f32,
v1: f32,
// external image buffer
buff: *const u8,
size: usize,
}
extern "C" {
fn wr_renderer_lock_external_image(
renderer: *mut c_void,
external_image_id: ExternalImageId,
channel_index: u8,
) -> WrExternalImage;
fn wr_renderer_unlock_external_image(renderer: *mut c_void, external_image_id: ExternalImageId, channel_index: u8);
}
#[repr(C)]
#[derive(Copy, Clone, Debug)]
pub struct WrExternalImageHandler {
external_image_obj: *mut c_void,
}
impl ExternalImageHandler for WrExternalImageHandler {
fn lock(&mut self, id: ExternalImageId, channel_index: u8) -> ExternalImage {
let image = unsafe { wr_renderer_lock_external_image(self.external_image_obj, id, channel_index) };
ExternalImage {
uv: TexelRect::new(image.u0, image.v0, image.u1, image.v1),
source: match image.image_type {
WrExternalImageType::NativeTexture => ExternalImageSource::NativeTexture(image.handle),
WrExternalImageType::RawData => {
ExternalImageSource::RawData(unsafe { make_slice(image.buff, image.size) })
},
WrExternalImageType::Invalid => ExternalImageSource::Invalid,
},
}
}
fn unlock(&mut self, id: ExternalImageId, channel_index: u8) {
unsafe {
wr_renderer_unlock_external_image(self.external_image_obj, id, channel_index);
}
}
}
#[repr(C)]
#[derive(Clone, Copy)]
// Used for ComponentTransfer only
pub struct WrFilterData {
funcR_type: ComponentTransferFuncType,
R_values: *mut c_float,
R_values_count: usize,
funcG_type: ComponentTransferFuncType,
G_values: *mut c_float,
G_values_count: usize,
funcB_type: ComponentTransferFuncType,
B_values: *mut c_float,
B_values_count: usize,
funcA_type: ComponentTransferFuncType,
A_values: *mut c_float,
A_values_count: usize,
}
#[repr(u32)]
#[derive(Debug)]
pub enum WrAnimationType {
Transform = 0,
Opacity = 1,
BackgroundColor = 2,
}
#[repr(C)]
pub struct WrAnimationProperty {
effect_type: WrAnimationType,
id: u64,
key: SpatialTreeItemKey,
}
/// cbindgen:derive-eq=false
#[repr(C)]
#[derive(Debug)]
pub struct WrAnimationPropertyValue<T> {
pub id: u64,
pub value: T,
}
pub type WrTransformProperty = WrAnimationPropertyValue<LayoutTransform>;
pub type WrOpacityProperty = WrAnimationPropertyValue<f32>;
pub type WrColorProperty = WrAnimationPropertyValue<ColorF>;
/// cbindgen:field-names=[mHandle]
/// cbindgen:derive-lt=true
/// cbindgen:derive-lte=true
#[repr(C)]
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
pub struct WrWindowId(u64);
#[repr(C)]
#[derive(Debug)]
pub struct WrComputedTransformData {
pub scale_from: LayoutSize,
pub vertical_flip: bool,
pub rotation: WrRotation,
pub key: SpatialTreeItemKey,
}
#[repr(C)]
pub struct WrTransformInfo {
pub transform: LayoutTransform,
pub key: SpatialTreeItemKey,
}
fn get_proc_address(glcontext_ptr: *mut c_void, name: &str) -> *const c_void {
extern "C" {
fn get_proc_address_from_glcontext(glcontext_ptr: *mut c_void, procname: *const c_char) -> *const c_void;
}
let symbol_name = CString::new(name).unwrap();
let symbol = unsafe { get_proc_address_from_glcontext(glcontext_ptr, symbol_name.as_ptr()) };
symbol as *const _
}
#[repr(C)]
pub enum TelemetryProbe {
SceneBuildTime = 0,
SceneSwapTime = 1,
FrameBuildTime = 2,
}
extern "C" {
fn is_in_compositor_thread() -> bool;
fn is_in_render_thread() -> bool;
fn is_in_main_thread() -> bool;
fn is_glcontext_gles(glcontext_ptr: *mut c_void) -> bool;
fn is_glcontext_angle(glcontext_ptr: *mut c_void) -> bool;
fn gfx_wr_resource_path_override() -> *const c_char;
fn gfx_wr_use_optimized_shaders() -> bool;
// TODO: make gfx_critical_error() work.
// We still have problem to pass the error message from render/render_backend
// thread to main thread now.
#[allow(dead_code)]
fn gfx_critical_error(msg: *const c_char);
fn gfx_critical_note(msg: *const c_char);
fn gfx_wr_set_crash_annotation(annotation: CrashAnnotation, value: *const c_char);
fn gfx_wr_clear_crash_annotation(annotation: CrashAnnotation);
}
struct CppNotifier {
window_id: WrWindowId,
}
unsafe impl Send for CppNotifier {}
extern "C" {
fn wr_notifier_wake_up(window_id: WrWindowId, composite_needed: bool);
fn wr_notifier_new_frame_ready(window_id: WrWindowId, composite_needed: bool, publish_id: FramePublishId);
fn wr_notifier_external_event(window_id: WrWindowId, raw_event: usize);
fn wr_schedule_render(window_id: WrWindowId, reasons: RenderReasons);
// NOTE: This moves away from pipeline_info.
fn wr_finished_scene_build(window_id: WrWindowId, pipeline_info: &mut WrPipelineInfo);
fn wr_transaction_notification_notified(handler: usize, when: Checkpoint);
}
impl RenderNotifier for CppNotifier {
fn clone(&self) -> Box<dyn RenderNotifier> {
Box::new(CppNotifier {
window_id: self.window_id,
})
}
fn wake_up(&self, composite_needed: bool) {
unsafe {
wr_notifier_wake_up(self.window_id, composite_needed);
}
}
fn new_frame_ready(&self, _: DocumentId, _scrolled: bool, composite_needed: bool, publish_id: FramePublishId) {
unsafe {
wr_notifier_new_frame_ready(self.window_id, composite_needed, publish_id);
}
}
fn external_event(&self, event: ExternalEvent) {
unsafe {
wr_notifier_external_event(self.window_id, event.unwrap());
}
}
}
struct MozCrashAnnotator;
unsafe impl Send for MozCrashAnnotator {}
impl CrashAnnotator for MozCrashAnnotator {
fn set(&self, annotation: CrashAnnotation, value: &std::ffi::CStr) {
unsafe {
gfx_wr_set_crash_annotation(annotation, value.as_ptr());
}
}
fn clear(&self, annotation: CrashAnnotation) {
unsafe {
gfx_wr_clear_crash_annotation(annotation);
}
}
fn box_clone(&self) -> Box<dyn CrashAnnotator> {
Box::new(MozCrashAnnotator)
}
}
#[no_mangle]
pub extern "C" fn wr_renderer_set_clear_color(renderer: &mut Renderer, color: ColorF) {
renderer.set_clear_color(color);
}
#[no_mangle]
pub extern "C" fn wr_renderer_set_external_image_handler(
renderer: &mut Renderer,
external_image_handler: &mut WrExternalImageHandler,
) {
renderer.set_external_image_handler(Box::new(*external_image_handler));
}
#[no_mangle]
pub extern "C" fn wr_renderer_update(renderer: &mut Renderer) {
renderer.update();
}
#[no_mangle]
pub extern "C" fn wr_renderer_set_target_frame_publish_id(renderer: &mut Renderer, publish_id: FramePublishId) {
renderer.set_target_frame_publish_id(publish_id);
}
#[no_mangle]
pub extern "C" fn wr_renderer_render(
renderer: &mut Renderer,
width: i32,
height: i32,
buffer_age: usize,
out_stats: &mut RendererStats,
out_dirty_rects: &mut ThinVec<DeviceIntRect>,
) -> bool {
match renderer.render(DeviceIntSize::new(width, height), buffer_age) {
Ok(results) => {
*out_stats = results.stats;
out_dirty_rects.extend(results.dirty_rects);
true
},
Err(errors) => {
for e in errors {
warn!(" Failed to render: {:?}", e);
let msg = CString::new(format!("wr_renderer_render: {:?}", e)).unwrap();
unsafe {
gfx_critical_note(msg.as_ptr());
}
}
false
},
}
}
#[no_mangle]
pub extern "C" fn wr_renderer_force_redraw(renderer: &mut Renderer) {
renderer.force_redraw();
}
#[no_mangle]
pub extern "C" fn wr_renderer_record_frame(
renderer: &mut Renderer,
image_format: ImageFormat,
out_handle: &mut RecordedFrameHandle,
out_width: &mut i32,
out_height: &mut i32,
) -> bool {
if let Some((handle, size)) = renderer.record_frame(image_format) {
*out_handle = handle;
*out_width = size.width;
*out_height = size.height;
true
} else {
false
}
}
#[no_mangle]
pub extern "C" fn wr_renderer_map_recorded_frame(
renderer: &mut Renderer,
handle: RecordedFrameHandle,
dst_buffer: *mut u8,
dst_buffer_len: usize,
dst_stride: usize,
) -> bool {
renderer.map_recorded_frame(
handle,
unsafe { make_slice_mut(dst_buffer, dst_buffer_len) },
dst_stride,
)
}
#[no_mangle]
pub extern "C" fn wr_renderer_release_composition_recorder_structures(renderer: &mut Renderer) {
renderer.release_composition_recorder_structures();
}
#[no_mangle]
pub extern "C" fn wr_renderer_get_screenshot_async(
renderer: &mut Renderer,
window_x: i32,
window_y: i32,
window_width: i32,
window_height: i32,
buffer_width: i32,
buffer_height: i32,
image_format: ImageFormat,
screenshot_width: *mut i32,
screenshot_height: *mut i32,
) -> AsyncScreenshotHandle {
assert!(!screenshot_width.is_null());
assert!(!screenshot_height.is_null());
let (handle, size) = renderer.get_screenshot_async(
DeviceIntRect::from_origin_and_size(
DeviceIntPoint::new(window_x, window_y),
DeviceIntSize::new(window_width, window_height),
),
DeviceIntSize::new(buffer_width, buffer_height),
image_format,
);
unsafe {
*screenshot_width = size.width;
*screenshot_height = size.height;
}
handle
}
#[no_mangle]
pub extern "C" fn wr_renderer_map_and_recycle_screenshot(
renderer: &mut Renderer,
handle: AsyncScreenshotHandle,
dst_buffer: *mut u8,
dst_buffer_len: usize,
dst_stride: usize,
) -> bool {
renderer.map_and_recycle_screenshot(
handle,
unsafe { make_slice_mut(dst_buffer, dst_buffer_len) },
dst_stride,
)
}
#[no_mangle]
pub extern "C" fn wr_renderer_release_profiler_structures(renderer: &mut Renderer) {
renderer.release_profiler_structures();
}
// Call wr_renderer_render() before calling this function.
#[no_mangle]
pub unsafe extern "C" fn wr_renderer_readback(
renderer: &mut Renderer,
width: i32,
height: i32,
format: ImageFormat,
dst_buffer: *mut u8,
buffer_size: usize,
) {
assert!(is_in_render_thread());
let mut slice = make_slice_mut(dst_buffer, buffer_size);
renderer.read_pixels_into(FramebufferIntSize::new(width, height).into(), format, &mut slice);
}
#[no_mangle]
pub unsafe extern "C" fn wr_renderer_set_profiler_ui(renderer: &mut Renderer, ui_str: *const u8, ui_str_len: usize) {
let slice = std::slice::from_raw_parts(ui_str, ui_str_len);
if let Ok(ui_str) = std::str::from_utf8(slice) {
renderer.set_profiler_ui(ui_str);
}
}
#[no_mangle]
pub unsafe extern "C" fn wr_renderer_delete(renderer: *mut Renderer) {
let renderer = Box::from_raw(renderer);
renderer.deinit();
// let renderer go out of scope and get dropped
}
#[no_mangle]
pub unsafe extern "C" fn wr_renderer_accumulate_memory_report(
renderer: &mut Renderer,
report: &mut MemoryReport,
swgl: *mut c_void,
) {
*report += renderer.report_memory(swgl);
}
// cbindgen doesn't support tuples, so we have a little struct instead, with
// an Into implementation to convert from the tuple to the struct.
#[repr(C)]
pub struct WrPipelineEpoch {
pipeline_id: WrPipelineId,
document_id: WrDocumentId,
epoch: WrEpoch,
}
impl<'a> From<(&'a (WrPipelineId, WrDocumentId), &'a WrEpoch)> for WrPipelineEpoch {
fn from(tuple: (&(WrPipelineId, WrDocumentId), &WrEpoch)) -> WrPipelineEpoch {
WrPipelineEpoch {
pipeline_id: (tuple.0).0,
document_id: (tuple.0).1,
epoch: *tuple.1,
}
}
}
#[repr(C)]
pub struct WrPipelineIdAndEpoch {
pipeline_id: WrPipelineId,
epoch: WrEpoch,
}
impl<'a> From<(&WrPipelineId, &WrEpoch)> for WrPipelineIdAndEpoch {
fn from(tuple: (&WrPipelineId, &WrEpoch)) -> WrPipelineIdAndEpoch {
WrPipelineIdAndEpoch {
pipeline_id: *tuple.0,
epoch: *tuple.1,
}
}
}
#[repr(C)]
pub struct WrRemovedPipeline {
pipeline_id: WrPipelineId,
document_id: WrDocumentId,
}
impl<'a> From<&'a (WrPipelineId, WrDocumentId)> for WrRemovedPipeline {
fn from(tuple: &(WrPipelineId, WrDocumentId)) -> WrRemovedPipeline {
WrRemovedPipeline {
pipeline_id: tuple.0,
document_id: tuple.1,
}
}
}
#[repr(C)]
pub struct WrPipelineInfo {
/// This contains an entry for each pipeline that was rendered, along with
/// the epoch at which it was rendered. Rendered pipelines include the root
/// pipeline and any other pipelines that were reachable via IFrame display
/// items from the root pipeline.
epochs: ThinVec<WrPipelineEpoch>,
/// This contains an entry for each pipeline that was removed during the
/// last transaction. These pipelines would have been explicitly removed by
/// calling remove_pipeline on the transaction object; the pipeline showing
/// up in this array means that the data structures have been torn down on
/// the webrender side, and so any remaining data structures on the caller
/// side can now be torn down also.
removed_pipelines: ThinVec<WrRemovedPipeline>,
}
impl WrPipelineInfo {
fn new(info: &PipelineInfo) -> Self {
WrPipelineInfo {
epochs: info.epochs.iter().map(WrPipelineEpoch::from).collect(),
removed_pipelines: info.removed_pipelines.iter().map(WrRemovedPipeline::from).collect(),
}
}
}
#[no_mangle]
pub unsafe extern "C" fn wr_renderer_flush_pipeline_info(renderer: &mut Renderer, out: &mut WrPipelineInfo) {
let info = renderer.flush_pipeline_info();
*out = WrPipelineInfo::new(&info);
}
extern "C" {
pub fn gecko_profiler_thread_is_being_profiled() -> bool;
}
pub fn gecko_profiler_start_marker(name: &str) {
use gecko_profiler::{gecko_profiler_category, MarkerOptions, MarkerTiming, ProfilerTime, Tracing};
gecko_profiler::add_marker(
name,
gecko_profiler_category!(Graphics),
MarkerOptions {
timing: MarkerTiming::interval_start(ProfilerTime::now()),
..Default::default()
},
Tracing::from_str("Webrender"),
);
}
pub fn gecko_profiler_end_marker(name: &str) {
use gecko_profiler::{gecko_profiler_category, MarkerOptions, MarkerTiming, ProfilerTime, Tracing};
gecko_profiler::add_marker(
name,
gecko_profiler_category!(Graphics),
MarkerOptions {
timing: MarkerTiming::interval_end(ProfilerTime::now()),
..Default::default()
},
Tracing::from_str("Webrender"),
);
}
pub fn gecko_profiler_event_marker(name: &str) {
use gecko_profiler::{gecko_profiler_category, Tracing};
gecko_profiler::add_marker(
name,
gecko_profiler_category!(Graphics),
Default::default(),
Tracing::from_str("Webrender"),
);
}
pub fn gecko_profiler_add_text_marker(name: &str, text: &str, microseconds: f64) {
use gecko_profiler::{gecko_profiler_category, MarkerOptions, MarkerTiming, ProfilerTime};
if !gecko_profiler::can_accept_markers() {
return;
}
let now = ProfilerTime::now();
let start = now.clone().subtract_microseconds(microseconds);
gecko_profiler::add_text_marker(
name,
gecko_profiler_category!(Graphics),
MarkerOptions {
timing: MarkerTiming::interval(start, now),
..Default::default()
},
text,
);
}
/// Simple implementation of the WR ProfilerHooks trait to allow profile
/// markers to be seen in the Gecko profiler.
struct GeckoProfilerHooks;
impl ProfilerHooks for GeckoProfilerHooks {
fn register_thread(&self, thread_name: &str) {
gecko_profiler::register_thread(thread_name);
}
fn unregister_thread(&self) {
gecko_profiler::unregister_thread();
}
fn begin_marker(&self, label: &str) {
gecko_profiler_start_marker(label);
}
fn end_marker(&self, label: &str) {
gecko_profiler_end_marker(label);
}
fn event_marker(&self, label: &str) {
gecko_profiler_event_marker(label);
}
fn add_text_marker(&self, label: &str, text: &str, duration: Duration) {
let micros = duration.as_micros() as f64;
gecko_profiler_add_text_marker(label, text, micros);
}
fn thread_is_being_profiled(&self) -> bool {
unsafe { gecko_profiler_thread_is_being_profiled() }
}
}
static PROFILER_HOOKS: GeckoProfilerHooks = GeckoProfilerHooks {};
#[allow(improper_ctypes)] // this is needed so that rustc doesn't complain about passing the &mut Transaction to an extern function
extern "C" {
// These callbacks are invoked from the scene builder thread (aka the APZ
// updater thread)
fn apz_register_updater(window_id: WrWindowId);
fn apz_pre_scene_swap(window_id: WrWindowId);
fn apz_post_scene_swap(window_id: WrWindowId, pipeline_info: &WrPipelineInfo);
fn apz_run_updater(window_id: WrWindowId);
fn apz_deregister_updater(window_id: WrWindowId);
// These callbacks are invoked from the render backend thread (aka the APZ
// sampler thread)
fn apz_register_sampler(window_id: WrWindowId);
fn apz_sample_transforms(window_id: WrWindowId, generated_frame_id: *const u64, transaction: &mut Transaction);
fn apz_deregister_sampler(window_id: WrWindowId);
fn omta_register_sampler(window_id: WrWindowId);
fn omta_sample(window_id: WrWindowId, transaction: &mut Transaction);
fn omta_deregister_sampler(window_id: WrWindowId);
}
struct APZCallbacks {
window_id: WrWindowId,
}
impl APZCallbacks {
pub fn new(window_id: WrWindowId) -> Self {
APZCallbacks { window_id }
}
}
impl SceneBuilderHooks for APZCallbacks {
fn register(&self) {
unsafe {
if static_prefs::pref!("gfx.webrender.scene-builder-thread-local-arena") {
wr_register_thread_local_arena();
}
apz_register_updater(self.window_id);
}
}
fn pre_scene_build(&self) {
gecko_profiler_start_marker("SceneBuilding");
}
fn pre_scene_swap(&self) {
unsafe {
apz_pre_scene_swap(self.window_id);
}
}
fn post_scene_swap(&self, _document_ids: &Vec<DocumentId>, info: PipelineInfo) {
let mut info = WrPipelineInfo::new(&info);
unsafe {
apz_post_scene_swap(self.window_id, &info);
}
// After a scene swap we should schedule a render for the next vsync,
// otherwise there's no guarantee that the new scene will get rendered
// anytime soon
unsafe { wr_finished_scene_build(self.window_id, &mut info) }
gecko_profiler_end_marker("SceneBuilding");
}
fn post_resource_update(&self, _document_ids: &Vec<DocumentId>) {
unsafe { wr_schedule_render(self.window_id, RenderReasons::POST_RESOURCE_UPDATES_HOOK) }
gecko_profiler_end_marker("SceneBuilding");
}
fn post_empty_scene_build(&self) {
gecko_profiler_end_marker("SceneBuilding");
}
fn poke(&self) {
unsafe { apz_run_updater(self.window_id) }
}
fn deregister(&self) {
unsafe { apz_deregister_updater(self.window_id) }
}
}
struct RenderBackendCallbacks;
impl RenderBackendHooks for RenderBackendCallbacks {
fn init_thread(&self) {
if static_prefs::pref!("gfx.webrender.frame-builder-thread-local-arena") {
unsafe { wr_register_thread_local_arena() };
}
}
}
struct SamplerCallback {
window_id: WrWindowId,
}
impl SamplerCallback {
pub fn new(window_id: WrWindowId) -> Self {
SamplerCallback { window_id }
}
}
impl AsyncPropertySampler for SamplerCallback {
fn register(&self) {
unsafe {
apz_register_sampler(self.window_id);
omta_register_sampler(self.window_id);
}
}
fn sample(&self, _document_id: DocumentId, generated_frame_id: Option<u64>) -> Vec<FrameMsg> {
let generated_frame_id_value;
let generated_frame_id: *const u64 = match generated_frame_id {
Some(id) => {
generated_frame_id_value = id;
&generated_frame_id_value
},
None => ptr::null_mut(),
};
let mut transaction = Transaction::new();
// Reset the pending properties first because omta_sample and apz_sample_transforms
// may be failed to reset them due to null samplers.
transaction.reset_dynamic_properties();
unsafe {
apz_sample_transforms(self.window_id, generated_frame_id, &mut transaction);
omta_sample(self.window_id, &mut transaction);
};
transaction.get_frame_ops()
}
fn deregister(&self) {
unsafe {
apz_deregister_sampler(self.window_id);
omta_deregister_sampler(self.window_id);
}
}
}
extern "C" {
fn wr_register_thread_local_arena();
}
pub struct WrThreadPool(Arc<rayon::ThreadPool>);
#[no_mangle]
pub extern "C" fn wr_thread_pool_new(low_priority: bool) -> *mut WrThreadPool {
// Clamp the number of workers between 1 and 4/8. We get diminishing returns
// with high worker counts and extra overhead because of rayon and font
// management.
// We clamp to 4 high priority threads because contention and memory usage
// make it not worth going higher
let max = if low_priority { 8 } else { 4 };
let num_threads = num_cpus::get().min(max);
let priority_tag = if low_priority { "LP" } else { "" };
let use_thread_local_arena = static_prefs::pref!("gfx.webrender.worker-thread-local-arena");
let worker = rayon::ThreadPoolBuilder::new()
.thread_name(move |idx| format!("WRWorker{}#{}", priority_tag, idx))
.num_threads(num_threads)
.start_handler(move |idx| {
if use_thread_local_arena {
unsafe {
wr_register_thread_local_arena();
}
}
let name = format!("WRWorker{}#{}", priority_tag, idx);
register_thread_with_profiler(name.clone());
gecko_profiler::register_thread(&name);
})
.exit_handler(|_idx| {
gecko_profiler::unregister_thread();
})
.build();
let workers = Arc::new(worker.unwrap());
Box::into_raw(Box::new(WrThreadPool(workers)))
}
#[no_mangle]
pub unsafe extern "C" fn wr_thread_pool_delete(thread_pool: *mut WrThreadPool) {
mem::drop(Box::from_raw(thread_pool));
}
pub struct WrChunkPool(Arc<ChunkPool>);
#[no_mangle]
pub unsafe extern "C" fn wr_chunk_pool_new() -> *mut WrChunkPool {
Box::into_raw(Box::new(WrChunkPool(Arc::new(ChunkPool::new()))))
}
#[no_mangle]
pub unsafe extern "C" fn wr_chunk_pool_delete(pool: *mut WrChunkPool) {
mem::drop(Box::from_raw(pool));
}
#[no_mangle]
pub unsafe extern "C" fn wr_chunk_pool_purge(pool: &WrChunkPool) {
pool.0.purge_all_chunks();
}
#[no_mangle]
pub unsafe extern "C" fn wr_program_cache_new(
prof_path: &nsAString,
thread_pool: *mut WrThreadPool,
) -> *mut WrProgramCache {
let workers = &(*thread_pool).0;
let program_cache = WrProgramCache::new(prof_path, workers);
Box::into_raw(Box::new(program_cache))
}
#[no_mangle]
pub unsafe extern "C" fn wr_program_cache_delete(program_cache: *mut WrProgramCache) {
mem::drop(Box::from_raw(program_cache));
}
#[no_mangle]
pub unsafe extern "C" fn wr_try_load_startup_shaders_from_disk(program_cache: *mut WrProgramCache) {
(*program_cache).try_load_startup_shaders_from_disk();
}
#[no_mangle]
pub unsafe extern "C" fn remove_program_binary_disk_cache(prof_path: &nsAString) -> bool {
match remove_disk_cache(prof_path) {
Ok(_) => true,
Err(_) => {
error!("Failed to remove program binary disk cache");
false
},
}
}
// This matches IsEnvSet in gfxEnv.h
fn env_var_to_bool(key: &'static str) -> bool {
env::var(key).ok().map_or(false, |v| !v.is_empty())
}
// Call MakeCurrent before this.
fn wr_device_new(gl_context: *mut c_void, pc: Option<&mut WrProgramCache>) -> Device {
assert!(unsafe { is_in_render_thread() });
let gl;
if unsafe { is_glcontext_gles(gl_context) } {
gl = unsafe { gl::GlesFns::load_with(|symbol| get_proc_address(gl_context, symbol)) };
} else {
gl = unsafe { gl::GlFns::load_with(|symbol| get_proc_address(gl_context, symbol)) };
}
let version = gl.get_string(gl::VERSION);
info!("WebRender - OpenGL version new {}", version);
let upload_method = if unsafe { is_glcontext_angle(gl_context) } {
UploadMethod::Immediate
} else {
UploadMethod::PixelBuffer(ONE_TIME_USAGE_HINT)
};
let resource_override_path = unsafe {
let override_charptr = gfx_wr_resource_path_override();
if override_charptr.is_null() {
None
} else {
match CStr::from_ptr(override_charptr).to_str() {
Ok(override_str) => Some(PathBuf::from(override_str)),
_ => None,
}
}
};
let use_optimized_shaders = unsafe { gfx_wr_use_optimized_shaders() };
let cached_programs = pc.map(|cached_programs| Rc::clone(cached_programs.rc_get()));
Device::new(
gl,
Some(Box::new(MozCrashAnnotator)),
resource_override_path,
use_optimized_shaders,
upload_method,
512 * 512,
cached_programs,
true,
true,
None,
false,
false,
)
}
extern "C" {
fn wr_compositor_create_surface(
compositor: *mut c_void,
id: NativeSurfaceId,
virtual_offset: DeviceIntPoint,
tile_size: DeviceIntSize,
is_opaque: bool,
);
fn wr_compositor_create_swapchain_surface(
compositor: *mut c_void,
id: NativeSurfaceId,
size: DeviceIntSize,
is_opaque: bool,
);
fn wr_compositor_resize_swapchain(compositor: *mut c_void, id: NativeSurfaceId, size: DeviceIntSize);
fn wr_compositor_create_external_surface(compositor: *mut c_void, id: NativeSurfaceId, is_opaque: bool);
fn wr_compositor_create_backdrop_surface(compositor: *mut c_void, id: NativeSurfaceId, color: ColorF);
fn wr_compositor_destroy_surface(compositor: *mut c_void, id: NativeSurfaceId);
fn wr_compositor_create_tile(compositor: *mut c_void, id: NativeSurfaceId, x: i32, y: i32);
fn wr_compositor_destroy_tile(compositor: *mut c_void, id: NativeSurfaceId, x: i32, y: i32);
fn wr_compositor_attach_external_image(
compositor: *mut c_void,
id: NativeSurfaceId,
external_image: ExternalImageId,
);
fn wr_compositor_bind(
compositor: *mut c_void,
id: NativeTileId,
offset: &mut DeviceIntPoint,
fbo_id: &mut u32,
dirty_rect: DeviceIntRect,
valid_rect: DeviceIntRect,
);
fn wr_compositor_unbind(compositor: *mut c_void);
fn wr_compositor_begin_frame(compositor: *mut c_void);
fn wr_compositor_add_surface(
compositor: *mut c_void,
id: NativeSurfaceId,
transform: &CompositorSurfaceTransform,
clip_rect: DeviceIntRect,
image_rendering: ImageRendering,
);
fn wr_compositor_start_compositing(
compositor: *mut c_void,
clear_color: ColorF,
dirty_rects: *const DeviceIntRect,
num_dirty_rects: usize,
opaque_rects: *const DeviceIntRect,
num_opaque_rects: usize,
);
fn wr_compositor_end_frame(compositor: *mut c_void);
fn wr_compositor_enable_native_compositor(compositor: *mut c_void, enable: bool);
fn wr_compositor_deinit(compositor: *mut c_void);
fn wr_compositor_get_capabilities(compositor: *mut c_void, caps: *mut CompositorCapabilities);
fn wr_compositor_get_window_visibility(compositor: *mut c_void, caps: *mut WindowVisibility);
fn wr_compositor_bind_swapchain(compositor: *mut c_void, id: NativeSurfaceId);
fn wr_compositor_present_swapchain(compositor: *mut c_void, id: NativeSurfaceId);
fn wr_compositor_map_tile(
compositor: *mut c_void,
id: NativeTileId,
dirty_rect: DeviceIntRect,
valid_rect: DeviceIntRect,
data: &mut *mut c_void,
stride: &mut i32,
);
fn wr_compositor_unmap_tile(compositor: *mut c_void);
fn wr_partial_present_compositor_set_buffer_damage_region(
compositor: *mut c_void,
rects: *const DeviceIntRect,
n_rects: usize,
);
}
pub struct WrCompositor(*mut c_void);
impl Compositor for WrCompositor {
fn create_surface(
&mut self,
_device: &mut Device,
id: NativeSurfaceId,
virtual_offset: DeviceIntPoint,
tile_size: DeviceIntSize,
is_opaque: bool,
) {
unsafe {
wr_compositor_create_surface(self.0, id, virtual_offset, tile_size, is_opaque);
}
}
fn create_external_surface(&mut self, _device: &mut Device, id: NativeSurfaceId, is_opaque: bool) {
unsafe {
wr_compositor_create_external_surface(self.0, id, is_opaque);
}
}
fn create_backdrop_surface(&mut self, _device: &mut Device, id: NativeSurfaceId, color: ColorF) {
unsafe {
wr_compositor_create_backdrop_surface(self.0, id, color);
}
}
fn destroy_surface(&mut self, _device: &mut Device, id: NativeSurfaceId) {
unsafe {
wr_compositor_destroy_surface(self.0, id);
}
}
fn create_tile(&mut self, _device: &mut Device, id: NativeTileId) {
unsafe {
wr_compositor_create_tile(self.0, id.surface_id, id.x, id.y);
}
}
fn destroy_tile(&mut self, _device: &mut Device, id: NativeTileId) {
unsafe {
wr_compositor_destroy_tile(self.0, id.surface_id, id.x, id.y);
}
}
fn attach_external_image(&mut self, _device: &mut Device, id: NativeSurfaceId, external_image: ExternalImageId) {
unsafe {
wr_compositor_attach_external_image(self.0, id, external_image);
}
}
fn bind(
&mut self,
_device: &mut Device,
id: NativeTileId,
dirty_rect: DeviceIntRect,
valid_rect: DeviceIntRect,
) -> NativeSurfaceInfo {
let mut surface_info = NativeSurfaceInfo {
origin: DeviceIntPoint::zero(),
fbo_id: 0,
};
unsafe {
wr_compositor_bind(
self.0,
id,
&mut surface_info.origin,
&mut surface_info.fbo_id,
dirty_rect,
valid_rect,
);
}
surface_info
}
fn unbind(&mut self, _device: &mut Device) {
unsafe {
wr_compositor_unbind(self.0);
}
}
fn begin_frame(&mut self, _device: &mut Device) {
unsafe {
wr_compositor_begin_frame(self.0);
}
}
fn add_surface(
&mut self,
_device: &mut Device,
id: NativeSurfaceId,
transform: CompositorSurfaceTransform,
clip_rect: DeviceIntRect,
image_rendering: ImageRendering,
) {
unsafe {
wr_compositor_add_surface(self.0, id, &transform, clip_rect, image_rendering);
}
}
fn start_compositing(
&mut self,
_device: &mut Device,
clear_color: ColorF,
dirty_rects: &[DeviceIntRect],
opaque_rects: &[DeviceIntRect],
) {
unsafe {
wr_compositor_start_compositing(
self.0,
clear_color,
dirty_rects.as_ptr(),
dirty_rects.len(),
opaque_rects.as_ptr(),
opaque_rects.len(),
);
}
}
fn end_frame(&mut self, _device: &mut Device) {
unsafe {
wr_compositor_end_frame(self.0);
}
}
fn enable_native_compositor(&mut self, _device: &mut Device, enable: bool) {
unsafe {
wr_compositor_enable_native_compositor(self.0, enable);
}
}
fn deinit(&mut self, _device: &mut Device) {
unsafe {
wr_compositor_deinit(self.0);
}
}
fn get_capabilities(&self, _device: &mut Device) -> CompositorCapabilities {
unsafe {
let mut caps: CompositorCapabilities = Default::default();
wr_compositor_get_capabilities(self.0, &mut caps);
caps
}
}
fn get_window_visibility(&self, _device: &mut Device) -> WindowVisibility {
unsafe {
let mut visibility: WindowVisibility = Default::default();
wr_compositor_get_window_visibility(self.0, &mut visibility);
visibility
}
}
}
struct NativeLayer {
id: NativeSurfaceId,
size: DeviceIntSize,
is_opaque: bool,
frames_since_used: usize,
usage: CompositorSurfaceUsage,
}
pub struct WrLayerCompositor {
compositor: *mut c_void,
next_layer_id: u64,
surface_pool: Vec<NativeLayer>,
visual_tree: Vec<NativeLayer>,
}
impl WrLayerCompositor {
fn new(compositor: *mut c_void) -> Self {
WrLayerCompositor {
compositor,
next_layer_id: 0,
surface_pool: Vec::new(),
visual_tree: Vec::new(),
}
}
}
impl LayerCompositor for WrLayerCompositor {
// Begin compositing a frame with the supplied input config
fn begin_frame(
&mut self,
input: &CompositorInputConfig,
) {
unsafe {
wr_compositor_begin_frame(self.compositor);
}
assert!(self.visual_tree.is_empty());
for request in input.layers {
let size = request.clip_rect.size();
let existing_index = self.surface_pool.iter().position(|layer| {
layer.is_opaque == request.is_opaque &&
layer.usage.matches(&request.usage)
});
let mut layer = match existing_index {
Some(existing_index) => {
let mut layer = self.surface_pool.swap_remove(existing_index);
layer.frames_since_used = 0;
// Copy across (potentially) updated external image id
layer.usage = request.usage;
layer
}
None => {
let id = NativeSurfaceId(self.next_layer_id);
self.next_layer_id += 1;
unsafe {
match request.usage {
CompositorSurfaceUsage::Content => {
wr_compositor_create_swapchain_surface(
self.compositor,
id,
size,
request.is_opaque,
);
}
CompositorSurfaceUsage::External { .. } => {
wr_compositor_create_external_surface(
self.compositor,
id,
request.is_opaque,
);
}
}
}
NativeLayer {
id,
size,
is_opaque: request.is_opaque,
frames_since_used: 0,
usage: request.usage,
}
}
};
match layer.usage {
CompositorSurfaceUsage::Content => {
if layer.size.width != size.width || layer.size.height != size.height {
unsafe {
wr_compositor_resize_swapchain(
self.compositor,
layer.id,
size
);
}
layer.size = size;
}
}
CompositorSurfaceUsage::External { external_image_id, .. } => {
unsafe {
wr_compositor_attach_external_image(
self.compositor,
layer.id,
external_image_id,
);
}
}
}
self.visual_tree.push(layer);
}
for layer in &mut self.surface_pool {
layer.frames_since_used += 1;
}
}
// Bind a layer by index for compositing into
fn bind_layer(&mut self, index: usize) {
let layer = &self.visual_tree[index];
unsafe {
wr_compositor_bind_swapchain(
self.compositor,
layer.id,
);
}
}
// Finish compositing a layer and present the swapchain
fn present_layer(&mut self, index: usize) {
let layer = &self.visual_tree[index];
unsafe {
wr_compositor_present_swapchain(
self.compositor,
layer.id,
);
}
}
fn add_surface(
&mut self,
index: usize,
transform: CompositorSurfaceTransform,
clip_rect: DeviceIntRect,
image_rendering: ImageRendering,
) {
let layer = &self.visual_tree[index];
unsafe {
wr_compositor_add_surface(
self.compositor,
layer.id,
&transform,
clip_rect,
image_rendering,
);
}
}
// Finish compositing this frame
fn end_frame(&mut self) {
unsafe {
wr_compositor_end_frame(self.compositor);
}
// Destroy any unused surface pool entries
let mut layers_to_destroy = Vec::new();
self.surface_pool.retain(|layer| {
let keep = layer.frames_since_used < 3;
if !keep {
layers_to_destroy.push(layer.id);
}
keep
});
for layer_id in layers_to_destroy {
unsafe {
wr_compositor_destroy_surface(self.compositor, layer_id);
}
}
self.surface_pool.append(&mut self.visual_tree);
}
}
impl Drop for WrLayerCompositor {
fn drop(&mut self) {
for layer in self.surface_pool.iter().chain(self.visual_tree.iter()) {
unsafe {
wr_compositor_destroy_surface(self.compositor, layer.id);
}
}
}
}
extern "C" {
fn wr_swgl_lock_composite_surface(
ctx: *mut c_void,
external_image_id: ExternalImageId,
composite_info: *mut SWGLCompositeSurfaceInfo,
) -> bool;
fn wr_swgl_unlock_composite_surface(ctx: *mut c_void, external_image_id: ExternalImageId);
}
impl MappableCompositor for WrCompositor {
/// Map a tile's underlying buffer so it can be used as the backing for
/// a SWGL framebuffer. This is intended to be a replacement for 'bind'
/// in any compositors that intend to directly interoperate with SWGL
/// while supporting some form of native layers.
fn map_tile(
&mut self,
_device: &mut Device,
id: NativeTileId,
dirty_rect: DeviceIntRect,
valid_rect: DeviceIntRect,
) -> Option<MappedTileInfo> {
let mut tile_info = MappedTileInfo {
data: ptr::null_mut(),
stride: 0,
};
unsafe {
wr_compositor_map_tile(
self.0,
id,
dirty_rect,
valid_rect,
&mut tile_info.data,
&mut tile_info.stride,
);
}
if !tile_info.data.is_null() && tile_info.stride != 0 {
Some(tile_info)
} else {
None
}
}
/// Unmap a tile that was was previously mapped via map_tile to signal
/// that SWGL is done rendering to the buffer.
fn unmap_tile(&mut self, _device: &mut Device) {
unsafe {
wr_compositor_unmap_tile(self.0);
}
}
fn lock_composite_surface(
&mut self,
_device: &mut Device,
ctx: *mut c_void,
external_image_id: ExternalImageId,
composite_info: *mut SWGLCompositeSurfaceInfo,
) -> bool {
unsafe { wr_swgl_lock_composite_surface(ctx, external_image_id, composite_info) }
}
fn unlock_composite_surface(&mut self, _device: &mut Device, ctx: *mut c_void, external_image_id: ExternalImageId) {
unsafe { wr_swgl_unlock_composite_surface(ctx, external_image_id) }
}
}
pub struct WrPartialPresentCompositor(*mut c_void);
impl PartialPresentCompositor for WrPartialPresentCompositor {
fn set_buffer_damage_region(&mut self, rects: &[DeviceIntRect]) {
unsafe {
wr_partial_present_compositor_set_buffer_damage_region(self.0, rects.as_ptr(), rects.len());
}
}
}
/// A wrapper around a strong reference to a Shaders object.
pub struct WrShaders(SharedShaders);
pub struct WrGlyphRasterThread(GlyphRasterThread);
#[no_mangle]
pub extern "C" fn wr_glyph_raster_thread_new() -> *mut WrGlyphRasterThread {
let thread = GlyphRasterThread::new(
|| {
gecko_profiler::register_thread("WrGlyphRasterizer");
},
|| {
gecko_profiler::unregister_thread();
},
);
match thread {
Ok(thread) => {
return Box::into_raw(Box::new(WrGlyphRasterThread(thread)));
},
Err(..) => {
return std::ptr::null_mut();
},
}
}
#[no_mangle]
pub extern "C" fn wr_glyph_raster_thread_delete(thread: *mut WrGlyphRasterThread) {
let thread = unsafe { Box::from_raw(thread) };
thread.0.shut_down();
}
// Call MakeCurrent before this.
#[no_mangle]
pub extern "C" fn wr_window_new(
window_id: WrWindowId,
window_width: i32,
window_height: i32,
is_main_window: bool,
support_low_priority_transactions: bool,
support_low_priority_threadpool: bool,
allow_texture_swizzling: bool,
allow_scissored_cache_clears: bool,
swgl_context: *mut c_void,
gl_context: *mut c_void,
surface_origin_is_top_left: bool,
program_cache: Option<&mut WrProgramCache>,
shaders: Option<&mut WrShaders>,
thread_pool: *mut WrThreadPool,
thread_pool_low_priority: *mut WrThreadPool,
chunk_pool: &WrChunkPool,
glyph_raster_thread: Option<&WrGlyphRasterThread>,
size_of_op: VoidPtrToSizeFn,
enclosing_size_of_op: VoidPtrToSizeFn,
document_id: u32,
compositor: *mut c_void,
use_native_compositor: bool,
use_partial_present: bool,
max_partial_present_rects: usize,
draw_previous_partial_present_regions: bool,
out_handle: &mut *mut DocumentHandle,
out_renderer: &mut *mut Renderer,
out_max_texture_size: *mut i32,
out_err: &mut *mut c_char,
enable_gpu_markers: bool,
panic_on_gl_error: bool,
picture_tile_width: i32,
picture_tile_height: i32,
reject_software_rasterizer: bool,
low_quality_pinch_zoom: bool,
max_shared_surface_size: i32,
enable_subpixel_aa: bool,
use_layer_compositor: bool,
) -> bool {
assert!(unsafe { is_in_render_thread() });
// Ensure the WR profiler callbacks are hooked up to the Gecko profiler.
set_profiler_hooks(Some(&PROFILER_HOOKS));
let software = !swgl_context.is_null();
let (gl, sw_gl) = if software {
let ctx = swgl::Context::from(swgl_context);
ctx.make_current();
(Rc::new(ctx) as Rc<dyn gl::Gl>, Some(ctx))
} else {
let gl = unsafe {
if gl_context.is_null() {
panic!("Native GL context required when not using SWGL!");
} else if is_glcontext_gles(gl_context) {
gl::GlesFns::load_with(|symbol| get_proc_address(gl_context, symbol))
} else {
gl::GlFns::load_with(|symbol| get_proc_address(gl_context, symbol))
}
};
(gl, None)
};
let version = gl.get_string(gl::VERSION);
info!("WebRender - OpenGL version new {}", version);
let workers = unsafe { Arc::clone(&(*thread_pool).0) };
let workers_low_priority = unsafe {
if support_low_priority_threadpool {
Arc::clone(&(*thread_pool_low_priority).0)
} else {
Arc::clone(&(*thread_pool).0)
}
};
let upload_method = if !gl_context.is_null() && unsafe { is_glcontext_angle(gl_context) } {
UploadMethod::Immediate
} else {
UploadMethod::PixelBuffer(ONE_TIME_USAGE_HINT)
};
let precache_flags = if env_var_to_bool("MOZ_WR_PRECACHE_SHADERS") {
ShaderPrecacheFlags::FULL_COMPILE
} else {
ShaderPrecacheFlags::empty()
};
let cached_programs = program_cache.map(|program_cache| Rc::clone(&program_cache.rc_get()));
let color = if cfg!(target_os = "android") {
// The color is for avoiding black flash before receiving display list.
ColorF::new(1.0, 1.0, 1.0, 1.0)
} else {
ColorF::new(0.0, 0.0, 0.0, 0.0)
};
let compositor_config = if software {
CompositorConfig::Native {
compositor: Box::new(SwCompositor::new(
sw_gl.unwrap(),
Box::new(WrCompositor(compositor)),
use_native_compositor,
)),
}
} else if use_native_compositor {
if use_layer_compositor {
CompositorConfig::Layer {
compositor: Box::new(WrLayerCompositor::new(compositor)),
}
} else {
CompositorConfig::Native {
compositor: Box::new(WrCompositor(compositor)),
}
}
} else {
CompositorConfig::Draw {
max_partial_present_rects,
draw_previous_partial_present_regions,
partial_present: if use_partial_present {
Some(Box::new(WrPartialPresentCompositor(compositor)))
} else {
None
},
}
};
let picture_tile_size = if picture_tile_width > 0 && picture_tile_height > 0 {
Some(DeviceIntSize::new(picture_tile_width, picture_tile_height))
} else {
None
};
let texture_cache_config = if is_main_window {
TextureCacheConfig::DEFAULT
} else {
TextureCacheConfig {
color8_linear_texture_size: 512,
color8_nearest_texture_size: 512,
color8_glyph_texture_size: 512,
alpha8_texture_size: 512,
alpha8_glyph_texture_size: 512,
alpha16_texture_size: 512,
}
};
let opts = WebRenderOptions {
enable_aa: true,
enable_subpixel_aa,
support_low_priority_transactions,
allow_texture_swizzling,
blob_image_handler: Some(Box::new(Moz2dBlobImageHandler::new(
workers.clone(),
workers_low_priority,
))),
crash_annotator: Some(Box::new(MozCrashAnnotator)),
workers: Some(workers),
chunk_pool: Some(chunk_pool.0.clone()),
dedicated_glyph_raster_thread: glyph_raster_thread.map(|grt| grt.0.clone()),
size_of_op: Some(size_of_op),
enclosing_size_of_op: Some(enclosing_size_of_op),
cached_programs,
resource_override_path: unsafe {
let override_charptr = gfx_wr_resource_path_override();
if override_charptr.is_null() {
None
} else {
match CStr::from_ptr(override_charptr).to_str() {
Ok(override_str) => Some(PathBuf::from(override_str)),
_ => None,
}
}
},
use_optimized_shaders: unsafe { gfx_wr_use_optimized_shaders() },
renderer_id: Some(window_id.0),
upload_method,
scene_builder_hooks: Some(Box::new(APZCallbacks::new(window_id))),
render_backend_hooks: Some(Box::new(RenderBackendCallbacks)),
sampler: Some(Box::new(SamplerCallback::new(window_id))),
max_internal_texture_size: Some(8192), // We want to tile if larger than this
clear_color: color,
precache_flags,
namespace_alloc_by_client: true,
// Font namespace must be allocated by the client
shared_font_namespace: Some(next_namespace_id()),
// SWGL doesn't support the GL_ALWAYS depth comparison function used by
// `clear_caches_with_quads`, but scissored clears work well.
clear_caches_with_quads: !software && !allow_scissored_cache_clears,
// SWGL supports KHR_blend_equation_advanced safely, but we haven't yet
// tested other HW platforms determine if it is safe to allow them.
allow_advanced_blend_equation: software,
surface_origin_is_top_left,
compositor_config,
enable_gpu_markers,
panic_on_gl_error,
picture_tile_size,
texture_cache_config,
reject_software_rasterizer,
low_quality_pinch_zoom,
max_shared_surface_size,
..Default::default()
};
let window_size = DeviceIntSize::new(window_width, window_height);
let notifier = Box::new(CppNotifier { window_id });
let (renderer, sender) = match create_webrender_instance(gl, notifier, opts, shaders.map(|sh| &sh.0)) {
Ok((renderer, sender)) => (renderer, sender),
Err(e) => {
warn!(" Failed to create a Renderer: {:?}", e);
let msg = CString::new(format!("wr_window_new: {:?}", e)).unwrap();
unsafe {
gfx_critical_note(msg.as_ptr());
}
*out_err = msg.into_raw();
return false;
},
};
unsafe {
*out_max_texture_size = renderer.get_max_texture_size();
}
*out_handle = Box::into_raw(Box::new(DocumentHandle::new(
sender.create_api_by_client(next_namespace_id()),
None,
window_size,
document_id,
)));
*out_renderer = Box::into_raw(Box::new(renderer));
true
}
#[no_mangle]
pub unsafe extern "C" fn wr_api_free_error_msg(msg: *mut c_char) {
if !msg.is_null() {
drop(CString::from_raw(msg));
}
}
#[no_mangle]
pub unsafe extern "C" fn wr_api_delete_document(dh: &mut DocumentHandle) {
dh.api.delete_document(dh.document_id);
}
#[no_mangle]
pub extern "C" fn wr_api_clone(dh: &mut DocumentHandle, out_handle: &mut *mut DocumentHandle) {
assert!(unsafe { is_in_compositor_thread() });
let hit_tester = dh.ensure_hit_tester().clone();
let handle = DocumentHandle {
api: dh.api.create_sender().create_api_by_client(next_namespace_id()),
document_id: dh.document_id,
hit_tester: Some(hit_tester),
hit_tester_request: None,
};
*out_handle = Box::into_raw(Box::new(handle));
}
#[no_mangle]
pub unsafe extern "C" fn wr_api_delete(dh: *mut DocumentHandle) {
let _ = Box::from_raw(dh);
}
#[no_mangle]
pub unsafe extern "C" fn wr_api_stop_render_backend(dh: &mut DocumentHandle) {
dh.api.stop_render_backend();
}
#[no_mangle]
pub unsafe extern "C" fn wr_api_shut_down(dh: &mut DocumentHandle) {
dh.api.shut_down(true);
}
#[no_mangle]
pub unsafe extern "C" fn wr_api_notify_memory_pressure(dh: &mut DocumentHandle) {
dh.api.notify_memory_pressure();
}
#[no_mangle]
pub extern "C" fn wr_api_set_debug_flags(dh: &mut DocumentHandle, flags: DebugFlags) {
dh.api.set_debug_flags(flags);
}
#[no_mangle]
pub extern "C" fn wr_api_set_bool(dh: &mut DocumentHandle, param_name: BoolParameter, val: bool) {
dh.api.set_parameter(Parameter::Bool(param_name, val));
}
#[no_mangle]
pub extern "C" fn wr_api_set_int(dh: &mut DocumentHandle, param_name: IntParameter, val: i32) {
dh.api.set_parameter(Parameter::Int(param_name, val));
}
#[no_mangle]
pub extern "C" fn wr_api_set_float(dh: &mut DocumentHandle, param_name: FloatParameter, val: f32) {
dh.api.set_parameter(Parameter::Float(param_name, val));
}
#[no_mangle]
pub unsafe extern "C" fn wr_api_accumulate_memory_report(
dh: &mut DocumentHandle,
--> --------------------
--> maximum size reached
--> --------------------
[ Dauer der Verarbeitung: 0.11 Sekunden
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