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D3D1x/WebGPU: Survive device loss in the readback paths. (#4001)

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This commit is contained in:
Branimir Karadžić
2026-09-28 19:56:23 -07:00
committed by GitHub
parent 7e3060ccb9
commit ce3bee65f2
3 changed files with 259 additions and 115 deletions
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src/renderer_webgpu.cpp
+40 -32
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@@ -1830,34 +1830,38 @@ WGPU_IMPORT
static void readTextureCb(WGPUMapAsyncStatus _status, WGPUStringView _message, void* _userdata1, void* _userdata2)
{
BX_ASSERT(WGPUMapAsyncStatus_Success == _status, "%d", _status);
BX_UNUSED(_status, _message, _userdata2);
ReadTexture& readTexture = *(ReadTexture*)_userdata1;
const void* result = (const void*)WGPU_CHECK(wgpuBufferGetConstMappedRange(
readTexture.buffer
, 0
, readTexture.size
) );
if (0 != readTexture.stencilPitch)
if (WGPUMapAsyncStatus_Success != _status)
{
interleaveDepthStencil(readTexture, result);
BX_TRACE("readTexture: map failed %d.", _status);
trace(_message);
}
else
{
bx::gather(
readTexture.data
, result
, readTexture.pitch
, readTexture.dataPitch
, readTexture.height
);
}
const void* result = (const void*)WGPU_CHECK(wgpuBufferGetConstMappedRange(
readTexture.buffer
, 0
, readTexture.size
) );
WGPU_CHECK(wgpuBufferUnmap(readTexture.buffer) );
if (0 != readTexture.stencilPitch)
{
interleaveDepthStencil(readTexture, result);
}
else
{
bx::gather(
readTexture.data
, result
, readTexture.pitch
, readTexture.dataPitch
, readTexture.height
);
}
WGPU_CHECK(wgpuBufferUnmap(readTexture.buffer) );
}
wgpuRelease(readTexture.buffer);
@@ -1873,21 +1877,25 @@ WGPU_IMPORT
static void readBufferCb(WGPUMapAsyncStatus _status, WGPUStringView _message, void* _userdata1, void* _userdata2)
{
BX_ASSERT(WGPUMapAsyncStatus_Success == _status, "%d", _status);
BX_UNUSED(_status, _message, _userdata2);
ReadBuffer& readBuffer = *(ReadBuffer*)_userdata1;
const void* result = (const void*)WGPU_CHECK(wgpuBufferGetConstMappedRange(
readBuffer.buffer
, 0
, readBuffer.size
) );
if (WGPUMapAsyncStatus_Success != _status)
{
BX_TRACE("readBuffer: map failed %d.", _status);
trace(_message);
}
else
{
const void* result = (const void*)WGPU_CHECK(wgpuBufferGetConstMappedRange(
readBuffer.buffer
, 0
, readBuffer.size
) );
bx::memCopy(readBuffer.data, result, readBuffer.size);
bx::memCopy(readBuffer.data, result, readBuffer.size);
WGPU_CHECK(wgpuBufferUnmap(readBuffer.buffer) );
WGPU_CHECK(wgpuBufferUnmap(readBuffer.buffer) );
}
wgpuRelease(readBuffer.buffer);