-
- dst = image->start();
- src = (const unsigned char *)MappedSubresource.pData;
- for (unsigned y = 0; y < Height; ++y) {
- if (Desc.Format == DXGI_FORMAT_R8G8B8A8_UNORM) {
- memcpy(dst, src, Width * 4);
- } else if (Desc.Format == DXGI_FORMAT_R32G32B32A32_FLOAT) {
- float scale = 1.0f/255.0f;
- for (unsigned x = 0; x < Width; ++x) {
- dst[4*x + 0] = ((float *)src)[4*x + 0] * scale;
- dst[4*x + 1] = ((float *)src)[4*x + 1] * scale;
- dst[4*x + 2] = ((float *)src)[4*x + 2] * scale;
- dst[4*x + 3] = ((float *)src)[4*x + 3] * scale;
- }
- } else if (Desc.Format == DXGI_FORMAT_B8G8R8A8_UNORM) {
- for (unsigned x = 0; x < Width; ++x) {
- dst[4*x + 0] = src[4*x + 2];
- dst[4*x + 1] = src[4*x + 1];
- dst[4*x + 2] = src[4*x + 0];
- dst[4*x + 3] = src[4*x + 3];
- }
- } else {
- assert(0);
- }
- src += MappedSubresource.RowPitch;
- dst += image->stride();
+ assert(image->stride() > 0);
+
+ hr = ConvertFormat(Desc.Format,
+ MappedSubresource.pData,
+ MappedSubresource.RowPitch,
+ DXGI_FORMAT_R8G8B8A8_UNORM,
+ image->start(),
+ image->stride(),
+ Width, Height);
+ if (FAILED(hr)) {
+ delete image;
+ image = NULL;