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mofeng-git
2025-12-28 18:19:16 +08:00
commit d143d158e4
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58
libs/hwcodec/cpp/common/platform/win/dump.cpp Normal file
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#include "win.h"
#include <fstream>
bool dumpTexture(ID3D11Device *device, ID3D11Texture2D *texture, int cropW,
int cropH, const string &filename) {
const char *dir = "texture";
DWORD attrib = GetFileAttributesA(dir);
if (attrib == INVALID_FILE_ATTRIBUTES ||
!(attrib & FILE_ATTRIBUTE_DIRECTORY)) {
if (!CreateDirectoryA(dir, NULL)) {
std::cout << "Failed to create directory: " << dir << std::endl;
return false;
} else {
std::cout << "Directory created: " << dir << std::endl;
}
} else {
// already exists
}
D3D11_TEXTURE2D_DESC desc = {};
ComPtr<ID3D11DeviceContext> deviceContext;
HRESULT hr;
texture->GetDesc(&desc);
desc.Usage = D3D11_USAGE_STAGING;
desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
desc.BindFlags = 0;
ComPtr<ID3D11Texture2D> stagingTexture;
hr = device->CreateTexture2D(&desc, nullptr, stagingTexture.GetAddressOf());
if (FAILED(hr)) {
return false;
}
device->GetImmediateContext(deviceContext.ReleaseAndGetAddressOf());
deviceContext->CopyResource(stagingTexture.Get(), texture);
D3D11_MAPPED_SUBRESOURCE mappedResource = {};
deviceContext->Map(stagingTexture.Get(), 0, D3D11_MAP_READ, 0,
&mappedResource);
string path = string(dir) + "/" + filename;
std::ofstream file(path, std::ios::binary | std::ios::app);
if (desc.Format == DXGI_FORMAT_NV12) {
int Pitch = mappedResource.RowPitch;
uint8_t *Y = (uint8_t *)mappedResource.pData;
uint8_t *U =
(uint8_t *)mappedResource.pData + desc.Height * mappedResource.RowPitch;
uint8_t *V = (desc.Format == DXGI_FORMAT_P010) ? U + 2 : U + 1;
for (int i = 0; i < cropH; i++) {
file.write((const char *)(Y + i * Pitch), cropW);
}
int ChromaH = cropH / 2;
int ChromaW = cropW;
for (int i = 0; i < ChromaH; i++) {
file.write((const char *)(U + i * Pitch), ChromaW);
}
}
deviceContext->Unmap(stagingTexture.Get(), 0);
file.close();
return true;
}