GeodeDevice.h File Reference

RAII wrapper around a WebGPU device - headless or host-provided. More...

#include <algorithm>
#include <atomic>
#include <cstddef>
#include <deque>
#include <map>
#include <memory>
#include <tuple>
#include <vector>
#include <webgpu/webgpu.hpp>
#include "donner/base/Utils.h"
#include "donner/gpu/Device.h"
#include "donner/svg/renderer/geode/GeodeCounters.h"
#include "donner/svg/renderer/geode/GeodeGpuContext.h"
#include "donner/svg/renderer/geode/GeodeGpuWait.h"
#include "donner/svg/renderer/geode/GeodeWgpuUtil.h"

Include dependency graph for GeodeDevice.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	donner::geode::SnapshotReadbackResources
	Move-only resource set for one GPU snapshot unpremultiply readback: a straight-alpha staging texture, its view, and a map-readable readback buffer. More...
struct	donner::geode::GeodeEmbedConfig
	Configuration for embedding Geode into a host application that already owns a WebGPU device. More...
class	donner::geode::GeodeDevice
	Owns (or wraps) a WebGPU device/queue pair for GPU rendering. More...
struct	donner::geode::GeodeDevice::ReadbackStats
struct	donner::geode::GeodeDevice::SceneBatchBindGroupKey
	Key identifying a scene-batch bind group by its exact buffer bindings: the shared batch uniform allocation, the geometry slab chunk, and the record span. More...

Namespaces
namespace	donner
	Top-level Donner namespace, which is split into different sub-namespaces such as donner::svg and donner::css.

Functions
constexpr uint32_t	donner::geode::AlignReadbackBytesPerRow (uint32_t rowBytes)
	256-align a tightly packed row-byte count per the WebGPU texture-to-buffer copy rules. Shared by the device's readback-buffer sizing and the renderer's map-range math; the two MUST agree, because a mapped-range request larger than the buffer returns null rather than raising an error.

Detailed Description

RAII wrapper around a WebGPU device - headless or host-provided.

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Class Documentation

donner::geode::GeodeDevice::ReadbackStats

struct donner::geode::GeodeDevice::ReadbackStats

Class Members
int	count = 0
bool	deviceLost = false	True once this device has been declared lost. Sticky, so every later consume keeps reporting it: a frame that never rendered has no other evidence to carry.
int	pollIterations = 0
int	timedOutWaitMs = 0	Wall time that wait spent before giving up, in milliseconds.
GpuWaitSite	timedOutWaitSite = GpuWaitSite::None	Bounded wait that declared that loss, or None.
bool	usedTimedWaitAny = false