//----------------------------------------------------------------------------//
void Direct3D11Texture::loadFromMemory(const void* buffer,
const Size& buffer_size,
PixelFormat pixel_format)
{
cleanupDirect3D11Texture();
const void* img_src = buffer;
if (pixel_format == PF_RGB)
{
const char* src = static_cast<const char*>(buffer);
char* dest = new char[buffer_size.d_width * buffer_size.d_height * 4];
for (int i = 0; i < buffer_size.d_width * buffer_size.d_height; ++i)
{
dest[i * 4 + 0] = src[i * 3 + 0];
dest[i * 4 + 1] = src[i * 3 + 1];
dest[i * 4 + 2] = src[i * 3 + 2];
dest[i * 4 + 3] = 0xFF;
}
img_src = dest;
}
D3D11_TEXTURE2D_DESC tex_desc;
ZeroMemory(&tex_desc, sizeof(tex_desc));
tex_desc.Width = static_cast<UINT>(buffer_size.d_width);
tex_desc.Height = static_cast<UINT>(buffer_size.d_height);
tex_desc.ArraySize = 1;
tex_desc.SampleDesc.Count = 1;
tex_desc.SampleDesc.Quality = 0;
tex_desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
tex_desc.Usage = D3D11_USAGE_DEFAULT;
tex_desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
tex_desc.CPUAccessFlags = 0;
tex_desc.MiscFlags = 0;
tex_desc.MipLevels = 1;
D3D11_SUBRESOURCE_DATA data;
ZeroMemory(&data, sizeof(D3D11_SUBRESOURCE_DATA));
data.pSysMem = img_src;
data.SysMemPitch = 4 * tex_desc.Width;
HRESULT hr = d_device.d_device->CreateTexture2D(&tex_desc, &data, &d_texture);
if (pixel_format == PF_RGB)
delete[] img_src;
if (FAILED(hr))
CEGUI_THROW(RendererException(
"Direct3D11Texture::loadFromMemory: Failed to "
"create texture from memory buffer."));
initialiseShaderResourceView();
d_dataSize = buffer_size;
updateTextureSize();
updateCachedScaleValues();
}
//----------------------------------------------------------------------------//
Direct3D11Texture::~Direct3D11Texture()
{
cleanupDirect3D11Texture();
}
//----------------------------------------------------------------------------//
void Direct3D11Texture::loadFromMemory(const void* buffer,
const Sizef& buffer_size,
PixelFormat pixel_format)
{
if (!isPixelFormatSupported(pixel_format))
CEGUI_THROW(InvalidRequestException(
"Data was supplied in an unsupported pixel format."));
cleanupDirect3D11Texture();
const void* img_src = buffer;
if (pixel_format == PF_RGB)
{
const unsigned char* src = static_cast<const unsigned char*>(buffer);
unsigned char* dest = new unsigned char[static_cast<unsigned int>( buffer_size.d_width * buffer_size.d_height * 4 )];
for (int i = 0; i < buffer_size.d_width * buffer_size.d_height; ++i)
{
dest[i * 4 + 0] = src[i * 3 + 0];
dest[i * 4 + 1] = src[i * 3 + 1];
dest[i * 4 + 2] = src[i * 3 + 2];
dest[i * 4 + 3] = 0xFF;
}
img_src = dest;
}
D3D11_TEXTURE2D_DESC tex_desc;
ZeroMemory(&tex_desc, sizeof(tex_desc));
tex_desc.Width = static_cast<UINT>(buffer_size.d_width);
tex_desc.Height = static_cast<UINT>(buffer_size.d_height);
tex_desc.ArraySize = 1;
tex_desc.SampleDesc.Count = 1;
tex_desc.SampleDesc.Quality = 0;
tex_desc.Format = toD3DPixelFormat(pixel_format);
tex_desc.Usage = D3D11_USAGE_DEFAULT;
tex_desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
tex_desc.CPUAccessFlags = 0;
tex_desc.MiscFlags = 0;
tex_desc.MipLevels = 1;
D3D11_SUBRESOURCE_DATA data;
ZeroMemory(&data, sizeof(D3D11_SUBRESOURCE_DATA));
data.pSysMem = img_src;
data.SysMemPitch = calculateDataWidth(tex_desc.Width, pixel_format);
HRESULT hr = d_device.d_device->CreateTexture2D(&tex_desc, &data, &d_texture);
if (pixel_format == PF_RGB)
delete[] img_src;
if (FAILED(hr))
CEGUI_THROW(RendererException(
"Failed to create texture from memory buffer."));
initialiseShaderResourceView();
d_dataSize = buffer_size;
updateTextureSize();
updateCachedScaleValues();
}
