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use crate::gpu::{gl, MipMapped};
use crate::prelude::*;
use skia_bindings as sb;
use skia_bindings::{GrContext, SkRefCntBase};
#[cfg(feature = "vulkan")]
use super::vk;
use crate::ColorType;
pub type Context = RCHandle<GrContext>;
impl NativeRefCountedBase for GrContext {
type Base = SkRefCntBase;
}
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub struct ResourceCacheLimits {
pub max_resources: usize,
pub max_resource_bytes: usize,
}
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub struct ResourceCacheUsage {
pub resource_count: usize,
pub resource_bytes: usize,
}
impl RCHandle<GrContext> {
pub fn new_gl(interface: impl Into<Option<gl::Interface>>) -> Option<Context> {
Context::from_ptr(unsafe { sb::C_GrContext_MakeGL(interface.into().into_ptr_or_null()) })
}
#[cfg(feature = "vulkan")]
pub fn new_vulkan(backend_context: &vk::BackendContext) -> Option<Context> {
unsafe {
let end_resolving = backend_context.begin_resolving();
let context =
Context::from_ptr(sb::C_GrContext_MakeVulkan(backend_context.native as _));
drop(end_resolving);
context
}
}
pub fn reset(&mut self, backend_state: Option<u32>) -> &mut Self {
unsafe {
self.native_mut()
.resetContext(backend_state.unwrap_or(sb::kAll_GrBackendState))
}
self
}
pub fn reset_gl_texture_bindings(&mut self) -> &mut Self {
unsafe { self.native_mut().resetGLTextureBindings() }
self
}
pub fn abandon(&mut self) -> &mut Self {
unsafe {
sb::GrContext_abandonContext(self.native_mut() as *mut _ as _)
}
self
}
pub fn abandoned(&self) -> bool {
unsafe { sb::C_GrContext_abandoned(self.native()) }
}
pub fn release_resources_and_abandon(&mut self) -> &mut Self {
unsafe { sb::GrContext_releaseResourcesAndAbandonContext(self.native_mut() as *mut _ as _) }
self
}
pub fn resource_cache_limits(&self) -> ResourceCacheLimits {
let mut resources = 0;
let mut resource_bytes = 0;
unsafe {
self.native()
.getResourceCacheLimits(&mut resources, &mut resource_bytes)
}
ResourceCacheLimits {
max_resources: resources.try_into().unwrap(),
max_resource_bytes: resource_bytes,
}
}
pub fn resource_cache_usage(&self) -> ResourceCacheUsage {
let mut resource_count = 0;
let mut resource_bytes = 0;
unsafe {
self.native()
.getResourceCacheUsage(&mut resource_count, &mut resource_bytes)
}
ResourceCacheUsage {
resource_count: resource_count.try_into().unwrap(),
resource_bytes,
}
}
pub fn resource_cache_purgeable_bytes(&self) -> usize {
unsafe { self.native().getResourceCachePurgeableBytes() }
}
pub fn free_gpu_resources(&mut self) -> &mut Self {
unsafe { sb::GrContext_freeGpuResources(self.native_mut() as *mut _ as _) }
self
}
pub fn purge_unlocked_resources(
&mut self,
bytes_to_purge: Option<usize>,
prefer_scratch_resources: bool,
) -> &mut Self {
unsafe {
match bytes_to_purge {
Some(bytes_to_purge) => self
.native_mut()
.purgeUnlockedResources(bytes_to_purge, prefer_scratch_resources),
None => self
.native_mut()
.purgeUnlockedResources1(prefer_scratch_resources),
}
}
self
}
pub fn max_texture_size(&self) -> i32 {
unsafe { self.native().maxTextureSize() }
}
pub fn max_render_target_size(&self) -> i32 {
unsafe { self.native().maxRenderTargetSize() }
}
pub fn color_type_supported_as_image(&self, color_type: ColorType) -> bool {
unsafe {
self.native()
.colorTypeSupportedAsImage(color_type.into_native())
}
}
pub fn color_type_supported_as_surface(&self, color_type: ColorType) -> bool {
unsafe {
sb::C_GrContext_colorTypeSupportedAsSurface(self.native(), color_type.into_native())
}
}
pub fn max_surface_sample_count_for_color_type(&self, color_type: ColorType) -> usize {
unsafe {
self.native()
.maxSurfaceSampleCountForColorType(color_type.into_native())
.try_into()
.unwrap()
}
}
pub fn flush(&mut self) -> &mut Self {
unsafe { sb::C_GrContext_flush(self.native_mut()) }
self
}
pub fn check_async_work_completion(&mut self) {
unsafe { self.native_mut().checkAsyncWorkCompletion() }
}
pub fn supports_distance_field_text(&self) -> bool {
unsafe { self.native().supportsDistanceFieldText() }
}
#[cfg(feature = "vulkan")]
pub fn store_vk_pipeline_cache_data(&mut self) -> &mut Self {
unsafe {
self.native_mut().storeVkPipelineCacheData();
}
self
}
pub fn compute_texture_size(
color_type: ColorType,
(width, height): (i32, i32),
mip_mapped: MipMapped,
use_next_pow2: impl Into<Option<bool>>,
) -> usize {
unsafe {
GrContext::ComputeTextureSize(
color_type.into_native(),
width,
height,
mip_mapped.into_native(),
use_next_pow2.into().unwrap_or(false),
)
}
}
}