//----------------------------------------------------------------------------//
void OpenGLTexture::grabTexture()
{
// if texture has already been grabbed, do nothing.
if (d_grabBuffer)
return;
std::size_t buffer_size(0);
if (OpenGLInfo::getSingleton().isUsingOpenglEs())
{
/* OpenGL ES 3.1 or below doesn't support
"glGetTexImage"/"glGetCompressedTexImage", so we need to emulate it
with "glReadPixels", which will return the data in (umcompressed)
format (GL_RGBA, GL_UNSIGNED_BYTE). */
buffer_size = static_cast<std::size_t>(d_dataSize.d_width)
*static_cast<std::size_t>(d_dataSize.d_height) *4;
d_isCompressed = false;
d_format = GL_RGBA;
d_subpixelFormat = GL_UNSIGNED_BYTE;
}
else // Desktop OpenGL
buffer_size = static_cast<std::size_t>(d_size.d_width)
*static_cast<std::size_t>(d_size.d_height) *4;
d_grabBuffer = new std::uint8_t[buffer_size];
blitToMemory(d_grabBuffer);
glDeleteTextures(1, &d_ogltexture);
}
//-----------------------------------------------------------------------------
void D3D9HardwarePixelBuffer::bind(IDirect3DDevice9 *dev, IDirect3DVolume9 *volume, IDirect3DBaseTexture9 *mipTex)
{
D3D9_DEVICE_ACCESS_CRITICAL_SECTION
BufferResources* bufferResources = getBufferResources(dev);
bool isNewBuffer = false;
if (bufferResources == NULL)
{
bufferResources = createBufferResources();
mMapDeviceToBufferResources[dev] = bufferResources;
isNewBuffer = true;
}
bufferResources->mipTex = mipTex;
bufferResources->volume = volume;
bufferResources->volume->AddRef();
D3DVOLUME_DESC desc;
if(volume->GetDesc(&desc) != D3D_OK)
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR, "Could not get volume information",
"D3D9HardwarePixelBuffer::D3D9HardwarePixelBuffer");
mWidth = desc.Width;
mHeight = desc.Height;
mDepth = desc.Depth;
mFormat = D3D9Mappings::_getPF(desc.Format);
// Default
mRowPitch = mWidth;
mSlicePitch = mHeight*mWidth;
mSizeInBytes = PixelUtil::getMemorySize(mWidth, mHeight, mDepth, mFormat);
if (isNewBuffer && mOwnerTexture->isManuallyLoaded())
{
DeviceToBufferResourcesIterator it = mMapDeviceToBufferResources.begin();
while (it != mMapDeviceToBufferResources.end())
{
if (it->second != bufferResources &&
it->second->volume != NULL &&
it->first->TestCooperativeLevel() == D3D_OK &&
dev->TestCooperativeLevel() == D3D_OK)
{
Box fullBufferBox(0,0,0,mWidth,mHeight,mDepth);
PixelBox dstBox(fullBufferBox, mFormat);
dstBox.data = OGRE_MALLOC(getSizeInBytes(), MEMCATEGORY_RESOURCE);
blitToMemory(fullBufferBox, dstBox, it->second, it->first);
blitFromMemory(dstBox, fullBufferBox, bufferResources);
OGRE_FREE(dstBox.data, MEMCATEGORY_RESOURCE);
break;
}
++it;
}
}
}
