PixelBox GL3PlusHardwarePixelBuffer::lockImpl( const Image::Box &lockBox, LockOptions options )
{
//Allocate memory for the entire image, as the buffer
//maynot be freed and be reused in subsequent calls.
allocateBuffer( PixelUtil::getMemorySize( mWidth, mHeight, mDepth, mFormat ) );
mBuffer = PixelBox( lockBox.getWidth(), lockBox.getHeight(),
lockBox.getDepth(), mFormat, mBuffer.data );
mCurrentLock = mBuffer;
mCurrentLock.left = lockBox.left;
mCurrentLock.right += lockBox.left;
mCurrentLock.top = lockBox.top;
mCurrentLock.bottom += lockBox.top;
if(options != HardwareBuffer::HBL_DISCARD)
{
// Download the old contents of the texture
download( mCurrentLock );
}
mCurrentLockOptions = options;
mLockedBox = lockBox;
mCurrentLock = mBuffer;
return mBuffer;
}
void GLES2HardwarePixelBuffer::blitFromMemory(const PixelBox &src, const Image::Box &dstBox)
{
if (!mBuffer.contains(dstBox))
{
OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
"Destination box out of range",
"GLES2HardwarePixelBuffer::blitFromMemory");
}
PixelBox scaled;
if (src.getWidth() != dstBox.getWidth() ||
src.getHeight() != dstBox.getHeight() ||
src.getDepth() != dstBox.getDepth())
{
// Scale to destination size.
// This also does pixel format conversion if needed
allocateBuffer();
scaled = mBuffer.getSubVolume(dstBox);
Image::scale(src, scaled, Image::FILTER_BILINEAR);
}
#if OGRE_PLATFORM != OGRE_PLATFORM_APPLE_IOS
else if ((src.format != mFormat) ||
((GLES2PixelUtil::getGLOriginFormat(src.format) == 0) && (src.format != PF_R8G8B8)))
#else
else if (GLES2PixelUtil::getGLOriginFormat(src.format) == 0)
#endif
{
// Extents match, but format is not accepted as valid source format for GL
// do conversion in temporary buffer
allocateBuffer();
scaled = mBuffer.getSubVolume(dstBox);
PixelUtil::bulkPixelConversion(src, scaled);
}
else
{
allocateBuffer();
// No scaling or conversion needed
scaled = src;
if (src.format == PF_R8G8B8)
{
scaled.format = PF_B8G8R8;
PixelUtil::bulkPixelConversion(src, scaled);
}
#if OGRE_PLATFORM == OGRE_PLATFORM_NACL
if (src.format == PF_A8R8G8B8)
{
scaled.format = PF_A8B8G8R8;
PixelUtil::bulkPixelConversion(src, scaled);
}
#endif
}
upload(scaled, dstBox);
freeBuffer();
}
//-----------------------------------------------------------------------------
void D3D11HardwarePixelBuffer::blitToMemory(const Image::Box &srcBox, const PixelBox &dst)
{
// Decide on pixel format of temp surface
PixelFormat tmpFormat = mFormat;
if(D3D11Mappings::_getPF(dst.format) != DXGI_FORMAT_UNKNOWN)
{
tmpFormat = dst.format;
}
assert(srcBox.getDepth() == 1 && dst.getDepth() == 1);
//This is a pointer to the texture we're trying to copy
//Only implemented for 2D at the moment...
ID3D11Texture2D *textureResource = mParentTexture->GetTex2D();
// get the description of the texture
D3D11_TEXTURE2D_DESC desc = {0};
textureResource->GetDesc( &desc );
//Alter the description to set up a staging texture
desc.Usage = D3D11_USAGE_STAGING;
//This texture is not bound to any part of the pipeline
desc.BindFlags = 0;
//Allow CPU Access
desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
//No Misc Flags
desc.MiscFlags = 0;
//Create the staging texture
ID3D11Texture2D* pStagingTexture = NULL;
mDevice->CreateTexture2D( &desc, NULL, &pStagingTexture );
//Copy our texture into the staging texture
mDevice.GetImmediateContext()->CopyResource( pStagingTexture, textureResource );
//Create a mapped resource and map the staging texture to the resource
D3D11_MAPPED_SUBRESOURCE mapped = {0};
mDevice.GetImmediateContext()->Map( pStagingTexture, 0, D3D11_MAP_READ , 0, &mapped );
// read the data out of the texture.
unsigned int rPitch = mapped.RowPitch;
BYTE *data = ((BYTE *)mapped.pData);
//Using existing OGRE functions
DXGI_MAPPED_RECT lrect;
lrect.pBits = data;
lrect.Pitch = rPitch;
PixelBox locked(dst.getWidth(), dst.getHeight(), dst.getDepth(), tmpFormat);
fromD3DLock(locked, lrect);
PixelUtil::bulkPixelConversion(locked, dst);
//Release the staging texture
mDevice.GetImmediateContext()->Unmap( pStagingTexture, 0 );
pStagingTexture->Release();
}
void GLESHardwarePixelBuffer::blitToMemory(const Image::Box &srcBox, const PixelBox &dst)
{
if (!mBuffer.contains(srcBox))
{
OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
"source box out of range",
"GLESHardwarePixelBuffer::blitToMemory");
}
if (srcBox.left == 0 && srcBox.right == getWidth() &&
srcBox.top == 0 && srcBox.bottom == getHeight() &&
srcBox.front == 0 && srcBox.back == getDepth() &&
dst.getWidth() == getWidth() &&
dst.getHeight() == getHeight() &&
dst.getDepth() == getDepth() &&
GLESPixelUtil::getGLOriginFormat(dst.format) != 0)
{
// The direct case: the user wants the entire texture in a format supported by GL
// so we don't need an intermediate buffer
download(dst);
}
else
{
// Use buffer for intermediate copy
allocateBuffer();
// Download entire buffer
download(mBuffer);
if(srcBox.getWidth() != dst.getWidth() ||
srcBox.getHeight() != dst.getHeight() ||
srcBox.getDepth() != dst.getDepth())
{
// We need scaling
Image::scale(mBuffer.getSubVolume(srcBox), dst, Image::FILTER_BILINEAR);
}
else
{
// Just copy the bit that we need
PixelUtil::bulkPixelConversion(mBuffer.getSubVolume(srcBox), dst);
}
freeBuffer();
}
}
void GL3PlusHardwarePixelBuffer::blitFromMemory(const PixelBox &src, const Image::Box &dstBox)
{
if (!mBuffer.contains(dstBox))
{
OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
"Destination box out of range",
"GL3PlusHardwarePixelBuffer::blitFromMemory");
}
PixelBox scaled;
if (src.getWidth() != dstBox.getWidth() ||
src.getHeight() != dstBox.getHeight() ||
src.getDepth() != dstBox.getDepth())
{
// Scale to destination size.
// This also does pixel format conversion if needed.
allocateBuffer( mSizeInBytes );
scaled = mBuffer.getSubVolume(dstBox);
Image::scale(src, scaled, Image::FILTER_BILINEAR);
}
else if (GL3PlusPixelUtil::getGLOriginFormat(src.format) == 0)
{
// Extents match, but format is not accepted as valid
// source format for GL. Do conversion in temporary buffer.
allocateBuffer( mSizeInBytes );
scaled = mBuffer.getSubVolume(dstBox);
PixelUtil::bulkPixelConversion(src, scaled);
}
else
{
allocateBuffer( mSizeInBytes );
// No scaling or conversion needed.
scaled = src;
}
upload(scaled, dstBox);
freeBuffer();
}
//-----------------------------------------------------------------------------
// blitFromMemory doing hardware trilinear scaling
void GLESTextureBuffer::blitFromMemory(const PixelBox &src_orig, const Image::Box &dstBox)
{
// Fall back to normal GLHardwarePixelBuffer::blitFromMemory in case
// - FBO is not supported
// - Either source or target is luminance due doesn't looks like supported by hardware
// - the source dimensions match the destination ones, in which case no scaling is needed
if(!GL_OES_framebuffer_object ||
PixelUtil::isLuminance(src_orig.format) ||
PixelUtil::isLuminance(mFormat) ||
(src_orig.getWidth() == dstBox.getWidth() &&
src_orig.getHeight() == dstBox.getHeight() &&
src_orig.getDepth() == dstBox.getDepth()))
{
GLESHardwarePixelBuffer::blitFromMemory(src_orig, dstBox);
return;
}
if(!mBuffer.contains(dstBox))
OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Destination box out of range",
"GLESTextureBuffer::blitFromMemory");
// For scoped deletion of conversion buffer
MemoryDataStreamPtr buf;
PixelBox src;
// First, convert the srcbox to a OpenGL compatible pixel format
if(GLESPixelUtil::getGLOriginFormat(src_orig.format) == 0)
{
// Convert to buffer internal format
buf.bind(OGRE_NEW MemoryDataStream(PixelUtil::getMemorySize(src_orig.getWidth(), src_orig.getHeight(), src_orig.getDepth(),
mFormat)));
src = PixelBox(src_orig.getWidth(), src_orig.getHeight(), src_orig.getDepth(), mFormat, buf->getPtr());
PixelUtil::bulkPixelConversion(src_orig, src);
}
else
{
// No conversion needed
src = src_orig;
}
// Create temporary texture to store source data
GLuint id;
GLenum target = GL_TEXTURE_2D;
GLsizei width = GLESPixelUtil::optionalPO2(src.getWidth());
GLsizei height = GLESPixelUtil::optionalPO2(src.getHeight());
GLenum format = GLESPixelUtil::getClosestGLInternalFormat(src.format);
GLenum datatype = GLESPixelUtil::getGLOriginDataType(src.format);
// Generate texture name
glGenTextures(1, &id);
GL_CHECK_ERROR;
// Set texture type
glBindTexture(target, id);
GL_CHECK_ERROR;
// Set automatic mipmap generation; nice for minimisation
glTexParameteri(target, GL_GENERATE_MIPMAP, GL_TRUE );
GL_CHECK_ERROR;
// Allocate texture memory
glTexImage2D(target, 0, format, width, height, 0, format, datatype, 0);
GL_CHECK_ERROR;
// GL texture buffer
GLESTextureBuffer tex(BLANKSTRING, target, id, width, height, format, src.format,
0, 0, (Usage)(TU_AUTOMIPMAP|HBU_STATIC_WRITE_ONLY), false, false, 0);
// Upload data to 0,0,0 in temporary texture
Image::Box tempTarget(0, 0, 0, src.getWidth(), src.getHeight(), src.getDepth());
tex.upload(src, tempTarget);
// Blit
blitFromTexture(&tex, tempTarget, dstBox);
// Delete temp texture
glDeleteTextures(1, &id);
GL_CHECK_ERROR;
}
//-----------------------------------------------------------------------------
// Very fast texture-to-texture blitter and hardware bi/trilinear scaling implementation using FBO
// Destination texture must be 2D
// Source texture must be 2D
// Supports compressed formats as both source and destination format, it will use the hardware DXT compressor
// if available.
// @author W.J. van der Laan
void GLESTextureBuffer::blitFromTexture(GLESTextureBuffer *src, const Image::Box &srcBox, const Image::Box &dstBox)
{
if(Root::getSingleton().getRenderSystem()->getCapabilities()->hasCapability(RSC_FBO) == false)
{
// the following code depends on FBO support, it crashes if FBO is not supported.
// TODO - write PBUFFER version of this function or a version that doesn't require FBO
return; // for now - do nothing.
}
// std::cerr << "GLESTextureBuffer::blitFromTexture " <<
// src->mTextureID << ":" << srcBox.left << "," << srcBox.top << "," << srcBox.right << "," << srcBox.bottom << " " <<
// mTextureID << ":" << dstBox.left << "," << dstBox.top << "," << dstBox.right << "," << dstBox.bottom << std::endl;
// Store reference to FBO manager
GLESFBOManager *fboMan = static_cast<GLESFBOManager *>(GLESRTTManager::getSingletonPtr());
// Save and clear GL state for rendering
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
RenderSystem* rsys = Root::getSingleton().getRenderSystem();
rsys->_disableTextureUnitsFrom(0);
// Disable alpha, depth and scissor testing, disable blending,
// disable culling, disble lighting, disable fog and reset foreground
// colour.
glDisable(GL_ALPHA_TEST);
glDisable(GL_DEPTH_TEST);
glDisable(GL_SCISSOR_TEST);
glDisable(GL_BLEND);
glDisable(GL_CULL_FACE);
glDisable(GL_LIGHTING);
glDisable(GL_FOG);
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
GL_CHECK_ERROR;
// Save and reset matrices
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glLoadIdentity();
GL_CHECK_ERROR;
// Set up source texture
glBindTexture(src->mTarget, src->mTextureID);
GL_CHECK_ERROR;
// Set filtering modes depending on the dimensions and source
if(srcBox.getWidth()==dstBox.getWidth() &&
srcBox.getHeight()==dstBox.getHeight() &&
srcBox.getDepth()==dstBox.getDepth())
{
// Dimensions match -- use nearest filtering (fastest and pixel correct)
glTexParameteri(src->mTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
GL_CHECK_ERROR;
glTexParameteri(src->mTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
GL_CHECK_ERROR;
}
else
{
// Dimensions don't match -- use bi or trilinear filtering depending on the
// source texture.
if(src->mUsage & TU_AUTOMIPMAP)
{
// Automatic mipmaps, we can safely use trilinear filter which
// brings greatly imporoved quality for minimisation.
glTexParameteri(src->mTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
GL_CHECK_ERROR;
glTexParameteri(src->mTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GL_CHECK_ERROR;
}
else
{
// Manual mipmaps, stay safe with bilinear filtering so that no
// intermipmap leakage occurs.
glTexParameteri(src->mTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
GL_CHECK_ERROR;
glTexParameteri(src->mTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GL_CHECK_ERROR;
}
}
// Clamp to edge (fastest)
glTexParameteri(src->mTarget, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
GL_CHECK_ERROR;
glTexParameteri(src->mTarget, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
GL_CHECK_ERROR;
// Store old binding so it can be restored later
GLint oldfb;
glGetIntegerv(GL_FRAMEBUFFER_BINDING_OES, &oldfb);
GL_CHECK_ERROR;
// Set up temporary FBO
glBindFramebufferOES(GL_FRAMEBUFFER_OES, fboMan->getTemporaryFBO());
GL_CHECK_ERROR;
GLuint tempTex = 0;
if(!fboMan->checkFormat(mFormat))
{
// If target format not directly supported, create intermediate texture
GLenum tempFormat = GLESPixelUtil::getClosestGLInternalFormat(fboMan->getSupportedAlternative(mFormat));
glGenTextures(1, &tempTex);
GL_CHECK_ERROR;
glBindTexture(GL_TEXTURE_2D, tempTex);
GL_CHECK_ERROR;
// Allocate temporary texture of the size of the destination area
glTexImage2D(GL_TEXTURE_2D, 0, tempFormat,
GLESPixelUtil::optionalPO2(dstBox.getWidth()), GLESPixelUtil::optionalPO2(dstBox.getHeight()),
0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
GL_CHECK_ERROR;
glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES,
GL_TEXTURE_2D, tempTex, 0);
GL_CHECK_ERROR;
// Set viewport to size of destination slice
glViewport(0, 0, dstBox.getWidth(), dstBox.getHeight());
GL_CHECK_ERROR;
}
else
{
// We are going to bind directly, so set viewport to size and position of destination slice
glViewport(dstBox.left, dstBox.top, dstBox.getWidth(), dstBox.getHeight());
GL_CHECK_ERROR;
}
// Process each destination slice
for(size_t slice=dstBox.front; slice<dstBox.back; ++slice)
{
if(!tempTex)
{
/// Bind directly
bindToFramebuffer(GL_COLOR_ATTACHMENT0_OES, slice);
}
if(tempTex)
{
// Copy temporary texture
glBindTexture(mTarget, mTextureID);
GL_CHECK_ERROR;
switch(mTarget)
{
case GL_TEXTURE_2D:
#if OGRE_PLATFORM == OGRE_PLATFORM_ANDROID
case GL_TEXTURE_CUBE_MAP_OES:
#endif
glCopyTexSubImage2D(mFaceTarget, mLevel,
dstBox.left, dstBox.top,
0, 0, dstBox.getWidth(), dstBox.getHeight());
GL_CHECK_ERROR;
break;
}
}
}
// Finish up
if(!tempTex)
{
// Generate mipmaps
if(mUsage & TU_AUTOMIPMAP)
{
glBindTexture(mTarget, mTextureID);
GL_CHECK_ERROR;
glGenerateMipmapOES(mTarget);
GL_CHECK_ERROR;
}
}
// Reset source texture to sane state
glBindTexture(src->mTarget, src->mTextureID);
GL_CHECK_ERROR;
// Detach texture from temporary framebuffer
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES,
GL_RENDERBUFFER_OES, 0);
GL_CHECK_ERROR;
// Restore old framebuffer
glBindFramebufferOES(GL_FRAMEBUFFER_OES, oldfb);
GL_CHECK_ERROR;
// Restore matrix stacks and render state
glMatrixMode(GL_TEXTURE);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
GL_CHECK_ERROR;
glDeleteTextures(1, &tempTex);
GL_CHECK_ERROR;
}
//-----------------------------------------------------------------------------
PixelBox D3D10HardwarePixelBuffer::lockImpl(const Image::Box lockBox, LockOptions options)
{
// Check for misuse
if(mUsage & TU_RENDERTARGET)
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR, "DirectX does not allow locking of or directly writing to RenderTargets. Use blitFromMemory if you need the contents.",
"D3D10HardwarePixelBuffer::lockImpl");
// Set extents and format
// Note that we do not carry over the left/top/front here, since the returned
// PixelBox will be re-based from the locking point onwards
PixelBox rval(lockBox.getWidth(), lockBox.getHeight(), lockBox.getDepth(), mFormat);
// Set locking flags according to options
D3D10_MAP flags = D3D10_MAP_WRITE_DISCARD ;
switch(options)
{
case HBL_DISCARD:
// D3D only likes D3DLOCK_DISCARD if you created the texture with D3DUSAGE_DYNAMIC
// debug runtime flags this up, could cause problems on some drivers
if (mUsage & HBU_DYNAMIC)
flags = D3D10_MAP_WRITE_DISCARD;
break;
case HBL_READ_ONLY:
flags = D3D10_MAP_READ;
break;
default:
break;
};
mDevice.clearStoredErrorMessages();
// TODO - check return values here
switch(mParentTexture->getTextureType()) {
case TEX_TYPE_1D:
{
mParentTexture->GetTex1D()->Map(static_cast<UINT>(mSubresourceIndex), flags, 0, &rval.data);
if (mDevice.isError())
{
String errorDescription = mDevice.getErrorDescription();
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR,
"D3D10 device cannot map 1D texture\nError Description:" + errorDescription,
"D3D10HardwarePixelBuffer::lockImpl");
}
}
break;
case TEX_TYPE_CUBE_MAP:
case TEX_TYPE_2D:
{
D3D10_MAPPED_TEXTURE2D mappedTex2D;
mParentTexture->GetTex2D()->Map(static_cast<UINT>(mSubresourceIndex), flags, 0, &mappedTex2D);
rval.data = mappedTex2D.pData;
if (mDevice.isError())
{
String errorDescription = mDevice.getErrorDescription();
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR,
"D3D10 device cannot map 1D texture\nError Description:" + errorDescription,
"D3D10HardwarePixelBuffer::lockImpl");
}
}
break;
case TEX_TYPE_3D:
{
D3D10_MAPPED_TEXTURE3D mappedTex3D;
mParentTexture->GetTex3D()->Map(static_cast<UINT>(mSubresourceIndex), flags, 0, &mappedTex3D);
rval.data = mappedTex3D.pData;
if (mDevice.isError())
{
String errorDescription = mDevice.getErrorDescription();
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR,
"D3D10 device cannot map 1D texture\nError Description:" + errorDescription,
"D3D10HardwarePixelBuffer::lockImpl");
}
}
break;
}
return rval;
}
void D3D10HardwarePixelBuffer::blit(const HardwarePixelBufferSharedPtr &rsrc, const Image::Box &srcBox, const Image::Box &dstBox)
{
if (
(srcBox.getWidth() != dstBox.getWidth())
|| (srcBox.getHeight() != dstBox.getHeight())
|| (srcBox.getDepth() != dstBox.getDepth())
)
{
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR,
"D3D10 device cannot copy a subresource - source and dest size are not the same and they have to be the same in DX10.",
"D3D10HardwarePixelBuffer::blit");
}
D3D10_BOX srcBoxDx10 = OgreImageBoxToDx10Box(srcBox);
D3D10HardwarePixelBuffer * rsrcDx10 = static_cast<D3D10HardwarePixelBuffer *>(rsrc.get());
switch(mParentTexture->getTextureType()) {
case TEX_TYPE_1D:
{
mDevice->CopySubresourceRegion(
mParentTexture->GetTex1D(),
static_cast<UINT>(mSubresourceIndex),
static_cast<UINT>(dstBox.left),
0,
0,
rsrcDx10->mParentTexture->GetTex1D(),
static_cast<UINT>(rsrcDx10->mSubresourceIndex),
&srcBoxDx10);
if (mDevice.isError())
{
String errorDescription = mDevice.getErrorDescription();
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR,
"D3D10 device cannot copy 1d subresource Region\nError Description:" + errorDescription,
"D3D10HardwarePixelBuffer::blit");
}
}
break;
case TEX_TYPE_CUBE_MAP:
case TEX_TYPE_2D:
{
mDevice->CopySubresourceRegion(
mParentTexture->GetTex2D(),
static_cast<UINT>(mSubresourceIndex),
static_cast<UINT>(dstBox.left),
static_cast<UINT>(dstBox.top),
mFace,
rsrcDx10->mParentTexture->GetTex2D(),
static_cast<UINT>(rsrcDx10->mSubresourceIndex),
&srcBoxDx10);
if (mDevice.isError())
{
String errorDescription = mDevice.getErrorDescription();
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR,
"D3D10 device cannot copy 2d subresource Region\nError Description:" + errorDescription,
"D3D10HardwarePixelBuffer::blit");
}
}
break;
case TEX_TYPE_3D:
{
mDevice->CopySubresourceRegion(
mParentTexture->GetTex2D(),
static_cast<UINT>(mSubresourceIndex),
static_cast<UINT>(dstBox.left),
static_cast<UINT>(dstBox.top),
static_cast<UINT>(dstBox.front),
rsrcDx10->mParentTexture->GetTex2D(),
static_cast<UINT>(rsrcDx10->mSubresourceIndex),
&srcBoxDx10);
if (mDevice.isError())
{
String errorDescription = mDevice.getErrorDescription();
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR,
"D3D10 device cannot copy 3d subresource Region\nError Description:" + errorDescription,
"D3D10HardwarePixelBuffer::blit");
}
}
break;
}
_genMipmaps();
}
//-----------------------------------------------------------------------------
// Very fast texture-to-texture blitter and hardware bi/trilinear scaling implementation using FBO
// Destination texture must be 1D, 2D, 3D, or Cube
// Source texture must be 1D, 2D or 3D
// Supports compressed formats as both source and destination format, it will use the hardware DXT compressor
// if available.
// @author W.J. van der Laan
void GLES2TextureBuffer::blitFromTexture(GLES2TextureBuffer *src, const Image::Box &srcBox, const Image::Box &dstBox)
{
return; // todo - add a shader attach...
// std::cerr << "GLES2TextureBuffer::blitFromTexture " <<
// src->mTextureID << ":" << srcBox.left << "," << srcBox.top << "," << srcBox.right << "," << srcBox.bottom << " " <<
// mTextureID << ":" << dstBox.left << "," << dstBox.top << "," << dstBox.right << "," << dstBox.bottom << std::endl;
// Store reference to FBO manager
GLES2FBOManager *fboMan = static_cast<GLES2FBOManager *>(GLES2RTTManager::getSingletonPtr());
RenderSystem* rsys = Root::getSingleton().getRenderSystem();
rsys->_disableTextureUnitsFrom(0);
glActiveTexture(GL_TEXTURE0);
// Disable alpha, depth and scissor testing, disable blending,
// and disable culling
glDisable(GL_DEPTH_TEST);
glDisable(GL_SCISSOR_TEST);
glDisable(GL_BLEND);
glDisable(GL_CULL_FACE);
// Set up source texture
glBindTexture(src->mTarget, src->mTextureID);
GL_CHECK_ERROR;
// Set filtering modes depending on the dimensions and source
if(srcBox.getWidth()==dstBox.getWidth() &&
srcBox.getHeight()==dstBox.getHeight() &&
srcBox.getDepth()==dstBox.getDepth())
{
// Dimensions match -- use nearest filtering (fastest and pixel correct)
glTexParameteri(src->mTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
GL_CHECK_ERROR;
glTexParameteri(src->mTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
GL_CHECK_ERROR;
}
else
{
// Dimensions don't match -- use bi or trilinear filtering depending on the
// source texture.
if(src->mUsage & TU_AUTOMIPMAP)
{
// Automatic mipmaps, we can safely use trilinear filter which
// brings greatly improved quality for minimisation.
glTexParameteri(src->mTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
GL_CHECK_ERROR;
glTexParameteri(src->mTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GL_CHECK_ERROR;
}
else
{
// Manual mipmaps, stay safe with bilinear filtering so that no
// intermipmap leakage occurs.
glTexParameteri(src->mTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
GL_CHECK_ERROR;
glTexParameteri(src->mTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GL_CHECK_ERROR;
}
}
// Clamp to edge (fastest)
glTexParameteri(src->mTarget, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
GL_CHECK_ERROR;
glTexParameteri(src->mTarget, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
GL_CHECK_ERROR;
// Store old binding so it can be restored later
GLint oldfb;
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &oldfb);
GL_CHECK_ERROR;
// Set up temporary FBO
glBindFramebuffer(GL_FRAMEBUFFER, fboMan->getTemporaryFBO());
GL_CHECK_ERROR;
GLuint tempTex = 0;
if(!fboMan->checkFormat(mFormat))
{
// If target format not directly supported, create intermediate texture
GLenum tempFormat = GLES2PixelUtil::getClosestGLInternalFormat(fboMan->getSupportedAlternative(mFormat));
glGenTextures(1, &tempTex);
GL_CHECK_ERROR;
glBindTexture(GL_TEXTURE_2D, tempTex);
GL_CHECK_ERROR;
#if GL_APPLE_texture_max_level
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL_APPLE, 0);
GL_CHECK_ERROR;
#endif
// Allocate temporary texture of the size of the destination area
glTexImage2D(GL_TEXTURE_2D, 0, tempFormat,
GLES2PixelUtil::optionalPO2(dstBox.getWidth()), GLES2PixelUtil::optionalPO2(dstBox.getHeight()),
0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
GL_CHECK_ERROR;
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D, tempTex, 0);
GL_CHECK_ERROR;
// Set viewport to size of destination slice
glViewport(0, 0, dstBox.getWidth(), dstBox.getHeight());
GL_CHECK_ERROR;
}
else
{
// We are going to bind directly, so set viewport to size and position of destination slice
glViewport(dstBox.left, dstBox.top, dstBox.getWidth(), dstBox.getHeight());
GL_CHECK_ERROR;
}
// Process each destination slice
for(size_t slice=dstBox.front; slice<dstBox.back; ++slice)
{
if(!tempTex)
{
// Bind directly
bindToFramebuffer(GL_COLOR_ATTACHMENT0, slice);
}
/// Calculate source texture coordinates
float u1 = (float)srcBox.left / (float)src->mWidth;
float v1 = (float)srcBox.top / (float)src->mHeight;
float u2 = (float)srcBox.right / (float)src->mWidth;
float v2 = (float)srcBox.bottom / (float)src->mHeight;
/// Calculate source slice for this destination slice
float w = (float)(slice - dstBox.front) / (float)dstBox.getDepth();
/// Get slice # in source
w = w * (float)srcBox.getDepth() + srcBox.front;
/// Normalise to texture coordinate in 0.0 .. 1.0
w = (w+0.5f) / (float)src->mDepth;
/// Finally we're ready to rumble
glBindTexture(src->mTarget, src->mTextureID);
GL_CHECK_ERROR;
glEnable(src->mTarget);
GL_CHECK_ERROR;
GLfloat squareVertices[] = {
-1.0f, -1.0f,
1.0f, -1.0f,
-1.0f, 1.0f,
1.0f, 1.0f,
};
GLfloat texCoords[] = {
u1, v1, w,
u2, v1, w,
u2, v2, w,
u1, v2, w
};
GLuint posAttrIndex = 0;
GLuint texAttrIndex = 0;
if(Root::getSingleton().getRenderSystem()->getCapabilities()->hasCapability(RSC_SEPARATE_SHADER_OBJECTS))
{
GLSLESProgramPipeline* programPipeline = GLSLESProgramPipelineManager::getSingleton().getActiveProgramPipeline();
posAttrIndex = (GLuint)programPipeline->getAttributeIndex(VES_POSITION, 0);
texAttrIndex = (GLuint)programPipeline->getAttributeIndex(VES_TEXTURE_COORDINATES, 0);
}
else
{
GLSLESLinkProgram* linkProgram = GLSLESLinkProgramManager::getSingleton().getActiveLinkProgram();
posAttrIndex = (GLuint)linkProgram->getAttributeIndex(VES_POSITION, 0);
texAttrIndex = (GLuint)linkProgram->getAttributeIndex(VES_TEXTURE_COORDINATES, 0);
}
// Draw the textured quad
glVertexAttribPointer(posAttrIndex,
2,
GL_FLOAT,
0,
0,
squareVertices);
GL_CHECK_ERROR;
glEnableVertexAttribArray(posAttrIndex);
GL_CHECK_ERROR;
glVertexAttribPointer(texAttrIndex,
3,
GL_FLOAT,
0,
0,
texCoords);
GL_CHECK_ERROR;
glEnableVertexAttribArray(texAttrIndex);
GL_CHECK_ERROR;
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
GL_CHECK_ERROR;
glDisable(src->mTarget);
GL_CHECK_ERROR;
if(tempTex)
{
// Copy temporary texture
glBindTexture(mTarget, mTextureID);
GL_CHECK_ERROR;
switch(mTarget)
{
case GL_TEXTURE_2D:
case GL_TEXTURE_CUBE_MAP:
glCopyTexSubImage2D(mFaceTarget, mLevel,
dstBox.left, dstBox.top,
0, 0, dstBox.getWidth(), dstBox.getHeight());
GL_CHECK_ERROR;
break;
}
}
}
// Finish up
if(!tempTex)
{
// Generate mipmaps
if(mUsage & TU_AUTOMIPMAP)
{
glBindTexture(mTarget, mTextureID);
GL_CHECK_ERROR;
glGenerateMipmap(mTarget);
GL_CHECK_ERROR;
}
}
// Reset source texture to sane state
glBindTexture(src->mTarget, src->mTextureID);
GL_CHECK_ERROR;
// Detach texture from temporary framebuffer
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_RENDERBUFFER, 0);
GL_CHECK_ERROR;
// Restore old framebuffer
glBindFramebuffer(GL_FRAMEBUFFER, oldfb);
GL_CHECK_ERROR;
glDeleteTextures(1, &tempTex);
GL_CHECK_ERROR;
}
//-----------------------------------------------------------------------------
PixelBox D3D11HardwarePixelBuffer::lockImpl(const Image::Box lockBox, LockOptions options)
{
// Check for misuse
if(mUsage & TU_RENDERTARGET)
OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR, "DirectX does not allow locking of or directly writing to RenderTargets. Use blitFromMemory if you need the contents.",
"D3D11HardwarePixelBuffer::lockImpl");
mLockBox = lockBox;
// Set extents and format
// Note that we do not carry over the left/top/front here, since the returned
// PixelBox will be re-based from the locking point onwards
PixelBox rval(lockBox.getWidth(), lockBox.getHeight(), lockBox.getDepth(), mFormat);
// Set locking flags according to options
D3D11_MAP flags = D3D11_MAP_WRITE_DISCARD ;
switch(options)
{
case HBL_NO_OVERWRITE:
flags = D3D11_MAP_WRITE_NO_OVERWRITE;
break;
case HBL_NORMAL:
flags = D3D11_MAP_READ_WRITE;
break;
case HBL_DISCARD:
flags = D3D11_MAP_WRITE_DISCARD;
break;
case HBL_READ_ONLY:
flags = D3D11_MAP_READ;
break;
case HBL_WRITE_ONLY:
flags = D3D11_MAP_WRITE;
break;
default:
break;
};
size_t offset = 0;
if(mUsage == HBU_STATIC || mUsage & HBU_DYNAMIC)
{
if(mUsage == HBU_STATIC || options == HBL_READ_ONLY || options == HBL_NORMAL || options == HBL_WRITE_ONLY)
rval.data = _mapstagingbuffer(flags);
else
_map(mParentTexture->getTextureResource(), flags, rval);
// calculate the offset in bytes
offset = D3D11Mappings::_getSizeInBytes(rval.format, rval.left, rval.front);
// add the offset, so the right memory will be changed
//rval.data = static_cast<int*>(rval.data) + offset;
}
else
{
size_t sizeOfImage = rval.getConsecutiveSize();
mDataForStaticUsageLock = new int8[sizeOfImage];
rval.data = mDataForStaticUsageLock;
}
// save without offset
mCurrentLock = rval;
mCurrentLockOptions = options;
// add the offset, so the right memory will be changed
rval.data = static_cast<int*>(rval.data) + offset;
return rval;
}
//-----------------------------------------------------------------------------
// blitFromMemory doing hardware trilinear scaling
void GLES2TextureBuffer::blitFromMemory(const PixelBox &src_orig, const Image::Box &dstBox)
{
// Fall back to normal GLHardwarePixelBuffer::blitFromMemory in case
// - FBO is not supported
// - Either source or target is luminance due doesn't looks like supported by hardware
// - the source dimensions match the destination ones, in which case no scaling is needed
// TODO: Check that extension is NOT available
if(PixelUtil::isLuminance(src_orig.format) ||
PixelUtil::isLuminance(mFormat) ||
(src_orig.getWidth() == dstBox.getWidth() &&
src_orig.getHeight() == dstBox.getHeight() &&
src_orig.getDepth() == dstBox.getDepth()))
{
GLES2HardwarePixelBuffer::blitFromMemory(src_orig, dstBox);
return;
}
if(!mBuffer.contains(dstBox))
OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Destination box out of range",
"GLES2TextureBuffer::blitFromMemory");
// For scoped deletion of conversion buffer
MemoryDataStreamPtr buf;
PixelBox src;
// First, convert the srcbox to a OpenGL compatible pixel format
if(GLES2PixelUtil::getGLOriginFormat(src_orig.format) == 0)
{
// Convert to buffer internal format
buf.bind(OGRE_NEW MemoryDataStream(PixelUtil::getMemorySize(src_orig.getWidth(), src_orig.getHeight(),
src_orig.getDepth(), mFormat)));
src = PixelBox(src_orig.getWidth(), src_orig.getHeight(), src_orig.getDepth(), mFormat, buf->getPtr());
PixelUtil::bulkPixelConversion(src_orig, src);
}
else
{
// No conversion needed
src = src_orig;
}
// Create temporary texture to store source data
GLuint id;
GLenum target =
#if OGRE_NO_GLES3_SUPPORT == 0
(src.getDepth() != 1) ? GL_TEXTURE_3D :
#endif
GL_TEXTURE_2D;
GLsizei width = GLES2PixelUtil::optionalPO2(src.getWidth());
GLsizei height = GLES2PixelUtil::optionalPO2(src.getHeight());
GLenum format = GLES2PixelUtil::getClosestGLInternalFormat(src.format);
GLenum datatype = GLES2PixelUtil::getGLOriginDataType(src.format);
// Generate texture name
OGRE_CHECK_GL_ERROR(glGenTextures(1, &id));
// Set texture type
OGRE_CHECK_GL_ERROR(glBindTexture(target, id));
#if GL_APPLE_texture_max_level && OGRE_PLATFORM != OGRE_PLATFORM_NACL
OGRE_CHECK_GL_ERROR(glTexParameteri(target, GL_TEXTURE_MAX_LEVEL_APPLE, 1000 ));
#elif OGRE_NO_GLES3_SUPPORT == 0
OGRE_CHECK_GL_ERROR(glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, 1000 ));
#endif
// Allocate texture memory
#if OGRE_NO_GLES3_SUPPORT == 0
if(target == GL_TEXTURE_3D || target == GL_TEXTURE_2D_ARRAY)
glTexImage3D(target, 0, src.format, src.getWidth(), src.getHeight(), src.getDepth(), 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
else
#endif
OGRE_CHECK_GL_ERROR(glTexImage2D(target, 0, format, width, height, 0, format, datatype, 0));
// GL texture buffer
GLES2TextureBuffer tex(StringUtil::BLANK, target, id, width, height, format, src.format,
0, 0, (Usage)(TU_AUTOMIPMAP|HBU_STATIC_WRITE_ONLY), false, false, 0);
// Upload data to 0,0,0 in temporary texture
Image::Box tempTarget(0, 0, 0, src.getWidth(), src.getHeight(), src.getDepth());
tex.upload(src, tempTarget);
// Blit
blitFromTexture(&tex, tempTarget, dstBox);
// Delete temp texture
OGRE_CHECK_GL_ERROR(glDeleteTextures(1, &id));
}
