int DwarfDie::typeSize() const
{
switch (tag()) {
case DW_TAG_base_type:
case DW_TAG_class_type:
case DW_TAG_enumeration_type:
case DW_TAG_structure_type:
case DW_TAG_union_type:
return attribute(DW_AT_byte_size).toInt();
case DW_TAG_pointer_type:
case DW_TAG_reference_type:
case DW_TAG_rvalue_reference_type:
return 8; // TODO: support 32bit!
case DW_TAG_const_type:
case DW_TAG_restrict_type:
case DW_TAG_typedef:
case DW_TAG_volatile_type:
{
const auto typeDie = attribute(DW_AT_type).value<DwarfDie*>();
assert(typeDie);
return typeDie->typeSize();
}
case DW_TAG_array_type:
{
const auto typeDie = attribute(DW_AT_type).value<DwarfDie*>();
assert(typeDie);
int s = typeDie->typeSize();
foreach (auto d, arrayDimensions(this))
s *= d;
return s;
}
}
return 0;
}
bool IndexBuffer::init(size_t count, IndexBufferType type, BufferUsage usage)
{
m_type = type;
m_usage = usage;
m_count = count;
glGenBuffers(1, &m_bufferID);
m_context.setCurrentIndexBuffer(this);
glBufferData(GL_ELEMENT_ARRAY_BUFFER,
m_count * typeSize(m_type),
nullptr,
convertToGL(m_usage));
if (!checkGL("Error during creation of index buffer of element size %u",
(uint) typeSize(m_type)))
{
m_context.setCurrentIndexBuffer(nullptr);
return false;
}
if (RenderStats* stats = m_context.stats())
stats->addIndexBuffer(size());
return true;
}
GLenum IndexDataManager::prepareIndexData(GLenum type, GLsizei count, Buffer *buffer, const void *indices, TranslatedIndexData *translated)
{
if(!mStreamingBuffer)
{
return GL_OUT_OF_MEMORY;
}
intptr_t offset = reinterpret_cast<intptr_t>(indices);
if(buffer != NULL)
{
if(typeSize(type) * count + offset > static_cast<std::size_t>(buffer->size()))
{
return GL_INVALID_OPERATION;
}
indices = static_cast<const GLubyte*>(buffer->data()) + offset;
}
StreamingIndexBuffer *streamingBuffer = mStreamingBuffer;
sw::Resource *staticBuffer = buffer ? buffer->getResource() : NULL;
if(staticBuffer)
{
computeRange(type, indices, count, &translated->minIndex, &translated->maxIndex);
translated->indexBuffer = staticBuffer;
translated->indexOffset = offset;
}
else
{
unsigned int streamOffset = 0;
int convertCount = count;
streamingBuffer->reserveSpace(convertCount * typeSize(type), type);
void *output = streamingBuffer->map(typeSize(type) * convertCount, &streamOffset);
if(output == NULL)
{
ERR("Failed to map index buffer.");
return GL_OUT_OF_MEMORY;
}
copyIndices(type, staticBuffer ? buffer->data() : indices, convertCount, output);
streamingBuffer->unmap();
computeRange(type, indices, count, &translated->minIndex, &translated->maxIndex);
translated->indexBuffer = streamingBuffer->getResource();
translated->indexOffset = streamOffset;
}
return GL_NO_ERROR;
}
int typeSize(refObject type)
{ switch (toHook(car(type)))
{ case arrayHook:
{ type = cdr(type);
return toInteger(car(type)) * typeSize(cadr(type)); }
case char0Hook:
{ return sizeof(char0Type); }
case char1Hook:
{ return sizeof(char1Type); }
case int0Hook:
{ return sizeof(int0Type); }
case int1Hook:
{ return sizeof(int1Type); }
case int2Hook:
{ return sizeof(int2Type); }
case nullHook:
case referHook:
case rowHook:
{ return sizeof(pointerType); }
case procHook:
{ return sizeof(procType); }
case real0Hook:
{ return sizeof(real0Type); }
case real1Hook:
{ return sizeof(real1Type); }
case skoHook:
case varHook:
{ return typeSize(cadr(type)); }
case strTypeHook:
{ return toInteger(cadddr(type)); }
case tupleHook:
{ int slotAlign;
refObject slotType;
int tupleAlign = 1;
int tupleSize = 0;
type = cdr(type);
while (type != nil)
{ slotType = car(type);
slotAlign = typeAlign(slotType);
tupleAlign = (slotAlign > tupleAlign ? slotAlign : tupleAlign);
tupleSize += typeSize(slotType);
tupleSize += rounder(tupleSize, slotAlign);
type = cddr(type); }
return tupleSize + rounder(tupleSize, tupleAlign); }
case voidHook:
{ return sizeof(voidType); }
default:
{ fail("Type has undefined size in typeSize!"); }}}
void processSimpleVariable(SymbolTable *table, Node *ptr, Specifier spec, Qualifier qual)
{
int sign = 1;
Node *p = ptr->son;
Node *q = ptr->next;
if (ptr->token.tokenNumber != SIMPLE_VAR) {
fprintf(stderr, "error in SIMPLE_VAR\n");
}
if (qual == QUAL_CONST) {
int init;
if (q == NULL) {
fprintf(stderr, "%s must have a constant value\n", ptr->token.tokenValue);
return;
}
if (q->token.tokenNumber == UNARY_MINUS) {
sign = -1;
q = q->son;
}
init = sign * atoi(q->token.tokenValue);
insert(table, p->token.tokenValue, spec, qual, 0, 0, init);
} else { // variable type
int size;
size = typeSize(spec);
insert(table, p->token.tokenValue, spec, qual, table->offset, 1, 0);
table->offset += size;
}
}
void Light::setAmbientLight(Vec4<GLfloat> light)
{
UBOUniform ambientLight = uniforms[std::string("ambientLight")];
size_t size = ambientLight.getSize() * typeSize(ambientLight.getType());
memcpy(lightData + ambientLight.getOffset(), light.getData(), size);
}
void Light::enableDiffuse(GLboolean enabled)
{
UBOUniform diffuse = uniforms[std::string("enableDiffuse")];
size_t size = diffuse.getSize() * typeSize(diffuse.getType());
memcpy(lightData + diffuse.getOffset(), &enabled, sizeof(enabled));
}
void Light::enableSpecular(GLboolean enabled)
{
UBOUniform specular = uniforms[std::string("enableSpecular")];
size_t size = specular.getSize() * typeSize(specular.getType());
memcpy(lightData + specular.getOffset(), &enabled, sizeof(enabled));
}
void Light::setSpecularLight(Vec4<GLfloat> light)
{
UBOUniform specularLight = uniforms[std::string("specularLight")];
size_t size = specularLight.getSize() * typeSize(specularLight.getType());
memcpy(lightData + specularLight.getOffset(), light.getData(), size);
}
void Light::setPosition(Vec4<GLfloat> pos)
{
UBOUniform position = uniforms[std::string("position")];
size_t size = position.getSize() * typeSize(position.getType());
memcpy(lightData + position.getOffset(), pos.getData(), size);
}
const void *getp(MyBuf const &b, int x, int y)
{
assert(x>=0 && x<b.w);
assert(y>=0 && y<b.h);
int nt = typeSize(b.type);
const char *p = (char*)b.p +y*b.linestep + nt*x;
return p;
}
void emitDeclaration(refVoidFunc etc, refObject type)
{ switch (toHook(car(type)))
// An array or tuple type becomes a STRUCT name (see ORSON/SIZE).
{ case arrayHook:
case tupleHook:
{ writeDirtyName(target, "type", typeSize(type));
etc();
break; }
// The CHAR0 type becomes CHAR0 STRING (see ORSON/GLOBAL).
case char0Hook:
{ writeFormat(target, "%s", char0String);
etc();
break; }
// The CHAR1 type becomes CHAR1 STRING (see ORSON/GLOBAL).
case char1Hook:
{ writeFormat(target, "%s", char1String);
etc();
break; }
// The INT0 type becomes INT0 STRING (see ORSON/GLOBAL).
case int0Hook:
{ writeFormat(target, "%s", int0String);
etc();
break; }
// The INT1 type becomes INT1 STRING (see ORSON/GLOBAL).
case int1Hook:
{ writeFormat(target, "%s", int1String);
etc();
break; }
// The INT2 type becomes INT2 STRING (see ORSON/GLOBAL).
case int2Hook:
{ writeFormat(target, "%s", int2String);
etc();
break; }
// NULL, REF, and ROW types become pointers to C's VOID type.
case nullHook:
case referHook:
case rowHook:
{ emitDeclaration(
({ void lambda()
{ writeChar(target, '*');
etc(); }
lambda; }),
voidExternal);
break; }
Vec4<GLfloat> Light::getAmbientLight()
{
GLfloat ambientLight[3];
UBOUniform ambientLightUbo = uniforms[std::string("ambientLight")];
size_t size = ambientLightUbo.getSize() * typeSize(ambientLightUbo.getType());
memcpy(ambientLight, lightData + ambientLightUbo.getOffset(), size);
return Vec4<GLfloat>(ambientLight[0], ambientLight[1], ambientLight[2], 0.0f);
}
Vec4<GLfloat> Light::getDiffuseLight()
{
GLfloat diffuseLight[4];
UBOUniform diffuseLightUbo = uniforms[std::string("diffuseLight")];
size_t size = diffuseLightUbo.getSize() * typeSize(diffuseLightUbo.getType());
memcpy(diffuseLight, lightData + diffuseLightUbo.getOffset(), size);
return Vec4<GLfloat>(diffuseLight[0], diffuseLight[1], diffuseLight[2], 0.0f);
}
Vec4<GLfloat> Light::getSpecularLight()
{
GLfloat specularLight[4];
UBOUniform specularLightUbo = uniforms[std::string("specularLight")];
size_t size = specularLightUbo.getSize() * typeSize(specularLightUbo.getType());
memcpy(specularLight, lightData + specularLightUbo.getOffset(), size);
return Vec4<GLfloat>(specularLight[0], specularLight[1], specularLight[2], 0.0f);
}
void Node::read()
{
for(int i = 0; i < tableInstance.attrList.size(); i++)
if (tableInstance.attrList[i].name == indexName)
{
switch(tableInstance.attrList[i].datatype)
{
case -1:attrType = _TYPE_FLOAT;break;
case 0:attrType = _TYPE_INT;break;
case 1:attrType = _TYPE_STRING;break;
}
break;
}
memcpy(&nodeType,block.content,1);
memcpy(&count,block.content + 1,sizeof(int));
for(int i = 0; i < (ptrN - 1); i++)
{
float tempFloat = 0;
int tempInt = 0;
string tempString = "";
PtrType tempPtr = 0;
Value tempValue(attrType);
//read ptr//TODO:+5？
memcpy(&tempPtr,block.content + 5 + i*( typeSize(attrType) + sizeof(int) ),typeSize(_TYPE_INT));
Value ptrTempValue(_TYPE_INT,tempPtr);//TODO:设置ptr类型
info.push_back(ptrTempValue);
//read key
switch(attrType)//TODO:+5？
{
case _TYPE_FLOAT:
{
memcpy(&tempFloat,block.content + 5 + i*( typeSize(attrType) + sizeof(int) ) + sizeof(int),typeSize(_TYPE_FLOAT));
tempValue.setKey(tempFloat);
break;
}
case _TYPE_INT:
{
memcpy(&tempInt,block.content + 5 + i*( typeSize(attrType) + sizeof(int) ) + sizeof(int),typeSize(_TYPE_INT));
tempValue.setKey(tempInt);
break;
}
case _TYPE_STRING:
{
memcpy(&tempString,block.content + 5 + i*( typeSize(attrType) + sizeof(int) ) + sizeof(int),typeSize(_TYPE_STRING));
tempValue.setKey(tempString);
break;
}
}//switch
info.push_back(tempValue);
}//for
PtrType tempPtr = 0;
memcpy(&tempPtr,block.content + 5 + (ptrN - 1)*( typeSize(attrType) + sizeof(int) ),typeSize(_TYPE_INT));
Value ptrTempValue(_TYPE_INT,tempPtr);//TODO:设置ptr类型
info.push_back(ptrTempValue);
}
int tiffSize_(TIFF *image, int *W, int *H, int *linestep, BufType *Type)
{
uint16 bps, spp, sfm;
uint32 width;
tsize_t stripSize;
unsigned long imageOffset;
int stripMax;
//unsigned long bufferSize, count;
// Check that it is of a type that we support
if((TIFFGetField(image, TIFFTAG_BITSPERSAMPLE, &bps) == 0) ){
return(42);
}
MyTRACE( "bits per sample(%d)\n", bps);
//float type
if((TIFFGetField(image, TIFFTAG_SAMPLEFORMAT, &sfm) == 0) ){
return(42);
}
MyTRACE( "TIFFTAG_SAMPLEFORMAT(%d)\n", sfm);
if (bps == 32 && sfm == SAMPLEFORMAT_IEEEFP)
*Type = TYPE_32F;
else if (bps == 16 && (sfm == SAMPLEFORMAT_INT))
*Type = TYPE_16S;
else if (bps == 16 && (sfm == SAMPLEFORMAT_UINT))
*Type = TYPE_16U;
else
return 43;
if((TIFFGetField(image, TIFFTAG_SAMPLESPERPIXEL, &spp) == 0) || (spp != 1)){
MyTRACE( "Either undefined or unsupported number of samples per pixel\n");
return(42);
}
// Read in the possibly multiple strips
stripSize = TIFFStripSize (image);
*linestep = stripSize;
stripMax = TIFFNumberOfStrips (image);
imageOffset = 0;
long height = stripMax;
*H = height;
// Do whatever it is we do with the buffer -- we dump it in hex
if(TIFFGetField(image, TIFFTAG_IMAGEWIDTH, &width) == 0){
MyTRACE( "Image does not define its width\n");
return(42);
}
*W = width;
assert(typeSize(*Type)*width <= stripSize);
return 0;
}
bool QgsRasterBlock::reset( QGis::DataType theDataType, int theWidth, int theHeight, double theNoDataValue )
{
QgsDebugMsg( QString( "theWidth= %1 theHeight = %2 theDataType = %3 theNoDataValue = %4" ).arg( theWidth ).arg( theHeight ).arg( theDataType ).arg( theNoDataValue ) );
qgsFree( mData );
mData = nullptr;
delete mImage;
mImage = nullptr;
qgsFree( mNoDataBitmap );
mNoDataBitmap = nullptr;
mDataType = QGis::UnknownDataType;
mTypeSize = 0;
mWidth = 0;
mHeight = 0;
mHasNoDataValue = false;
mNoDataValue = std::numeric_limits<double>::quiet_NaN();
mValid = false;
if ( typeIsNumeric( theDataType ) )
{
QgsDebugMsg( "Numeric type" );
qgssize tSize = typeSize( theDataType );
QgsDebugMsg( QString( "allocate %1 bytes" ).arg( tSize * theWidth * theHeight ) );
mData = qgsMalloc( tSize * theWidth * theHeight );
if ( !mData )
{
QgsDebugMsg( QString( "Couldn't allocate data memory of %1 bytes" ).arg( tSize * theWidth * theHeight ) );
return false;
}
}
else if ( typeIsColor( theDataType ) )
{
QgsDebugMsg( "Color type" );
QImage::Format format = imageFormat( theDataType );
mImage = new QImage( theWidth, theHeight, format );
}
else
{
QgsDebugMsg( "Wrong data type" );
return false;
}
mValid = true;
mDataType = theDataType;
mTypeSize = QgsRasterBlock::typeSize( mDataType );
mWidth = theWidth;
mHeight = theHeight;
mHasNoDataValue = true;
mNoDataValue = theNoDataValue;
QgsDebugMsg( QString( "mWidth= %1 mHeight = %2 mDataType = %3 mData = %4 mImage = %5" ).arg( mWidth ).arg( mHeight ).arg( mDataType )
.arg( reinterpret_cast< ulong >( mData ) ).arg( reinterpret_cast< ulong >( mImage ) ) );
return true;
}
void Light::setDiffuseLight(Vec4<GLfloat> light)
{
UBOUniform diffuseLight = uniforms[std::string("diffuseLight")];
struct LightProperties* sss = (struct LightProperties*)0;
int *asdf = (int*)&sss->diffuseLight;
size_t size = diffuseLight.getSize() * typeSize(diffuseLight.getType());
struct LightProperties *blah = (struct LightProperties*)lightData;
size_t test = sizeof(struct LightProperties);
memcpy(lightData + diffuseLight.getOffset(), light.getData(), size);
}
void * QgsRasterInterface::convert( void *srcData, QgsRasterInterface::DataType srcDataType, QgsRasterInterface::DataType destDataType, int size )
{
int destDataTypeSize = typeSize( destDataType ) / 8;
void *destData = VSIMalloc( destDataTypeSize * size );
for ( int i = 0; i < size; i++ )
{
double value = readValue( srcData, srcDataType, i );
writeValue( destData, destDataType, i, value );
//double newValue = readValue( destData, destDataType, i );
//QgsDebugMsg( QString("convert type %1 to %2: %3 -> %4").arg(srcDataType).arg(destDataType).arg( value ).arg( newValue ) );
}
return destData;
}
bool QgsRasterBlock::setIsNoData()
{
QgsDebugMsg( "Entered" );
if ( typeIsNumeric( mDataType ) )
{
if ( mHasNoDataValue )
{
if ( !mData )
{
QgsDebugMsg( "Data block not allocated" );
return false;
}
QgsDebugMsg( "set mData to mNoDataValue" );
int dataTypeSize = typeSize( mDataType );
QByteArray noDataByteArray = valueBytes( mDataType, mNoDataValue );
char *nodata = noDataByteArray.data();
for ( qgssize i = 0; i < static_cast< qgssize >( mWidth )*mHeight; i++ )
{
memcpy( reinterpret_cast< char* >( mData ) + i*dataTypeSize, nodata, dataTypeSize );
}
}
else
{
// use bitmap
if ( !mNoDataBitmap )
{
if ( !createNoDataBitmap() )
{
return false;
}
}
QgsDebugMsg( "set mNoDataBitmap to 1" );
memset( mNoDataBitmap, 0xff, mNoDataBitmapSize );
}
return true;
}
else
{
// image
if ( !mImage )
{
QgsDebugMsg( "Image not allocated" );
return false;
}
QgsDebugMsg( "Fill image" );
mImage->fill( mNoDataColor );
return true;
}
}
size_t getShaderAttributeSize( const EShaderAttributeType type, const EShaderAttributeTypeComponents components )
{
size_t typeSize(4);
switch (type)
{
case eShaderAttributeType_Float:
case eShaderAttributeType_Int32:
case eShaderAttributeType_UInt32:
typeSize = 4; break;
default:
LOG(LogType_ProgrammerAssert, "Unknown EShaderAttributeType when getting size! %d", type);
}
return typeSize * components;
}
void IndexBuffer::copyFrom(const void* source, size_t sourceCount, size_t start)
{
if (start + sourceCount > m_count)
{
logError("Too many indices submitted to index buffer");
return;
}
m_context.setCurrentIndexBuffer(this);
const size_t size = typeSize(m_type);
glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, start * size, sourceCount * size, source);
#if WENDY_DEBUG
checkGL("Error during copy to index buffer");
#endif
}
void IndexBuffer::copyTo(void* target, size_t targetCount, size_t start)
{
if (start + targetCount > m_count)
{
logError("Too many indices requested from index buffer");
return;
}
m_context.setCurrentIndexBuffer(this);
const size_t size = typeSize(m_type);
glGetBufferSubData(GL_ELEMENT_ARRAY_BUFFER, start * size, targetCount * size, target);
#if WENDY_DEBUG
checkGL("Error during copy from index buffer");
#endif
}
void internSize(int length, refObject type)
{ if (isSized(type))
{ int count = length * typeSize(type);
refSize subtree = sizes;
while (true)
{ if (count < count(subtree))
{ if (left(subtree) == nil)
{ left(subtree) = makeSize(count);
return; }
else
{ subtree = left(subtree); }}
else if (count > count(subtree))
{ if (right(subtree) == nil)
{ right(subtree) = makeSize(count);
return; }
else
{ subtree = right(subtree); }}
else
{ return; }}}}
int
pcl::ASCIIReader::readHeader (const std::string& file_name,
pcl::PCLPointCloud2& cloud, Eigen::Vector4f& origin,
Eigen::Quaternionf& orientation, int& file_version, int& data_type,
unsigned int& data_idx, const int offset)
{
(void)offset; //offset is not used for ascii file implementation
boost::filesystem::path fpath = file_name;
if (!boost::filesystem::exists (fpath))
{
PCL_ERROR ("[%s] File %s does not exist.\n", name_.c_str (), file_name.c_str ());
return (-1);
}
if (boost::filesystem::extension (fpath) != extension_)
{
PCL_ERROR ("[%s] File does not have %s extension. \n", name_.c_str(), extension_.c_str());
return -1;
}
cloud.fields = fields_;
cloud.point_step = 0;
for (int i = 0; i < fields_.size (); i++)
cloud.point_step += typeSize (cloud.fields[i].datatype);
std::fstream ifile (file_name.c_str (), std::fstream::in);
std::string line;
int total = 0;
while (std::getline (ifile, line))
total++;
origin = Eigen::Vector4f::Zero ();
orientation = Eigen::Quaternionf ();
cloud.width = total;
cloud.height = 1;
cloud.is_dense = true;
file_version = -1;
data_type = 0;
data_idx = 0;
return (total);
}
void processArrayVariable(SymbolTable *table, Node *ptr, int spec, int qual)
{
Node *p = ptr->son;
int size;
if (ptr->token.tokenNumber != ARRAY_VAR) {
fprintf(file, "error in ARRAY_VAR\n");
return;
}
if (p->next == NULL) {
fprintf(file, "array size must be specified\n");
} else {
size = atoi(p->next->token.tokenValue);
}
size *= typeSize(spec);
insert(table, p->token.tokenValue, spec, qual, table->offset, size, 0);
table->offset += size;
}
int DwarfDie::typeAlignment() const
{
switch (tag()) {
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
return std::min(typeSize(), 8); // TODO: 32bit support
case DW_TAG_array_type:
case DW_TAG_const_type:
case DW_TAG_restrict_type:
case DW_TAG_typedef:
case DW_TAG_volatile_type:
{
const auto typeDie = attribute(DW_AT_type).value<DwarfDie*>();
assert(typeDie);
return typeDie->typeAlignment();
}
case DW_TAG_pointer_type:
case DW_TAG_reference_type:
case DW_TAG_rvalue_reference_type:
return 8; // TODO: 32bit support
case DW_TAG_class_type:
case DW_TAG_structure_type:
case DW_TAG_union_type:
{
int align = 1;
foreach (const auto child, children()) {
if (child->tag() != DW_TAG_member && child->tag() != DW_TAG_inheritance)
continue;
if (child->isStaticMember())
continue;
const auto typeDie = child->attribute(DW_AT_type).value<DwarfDie*>();
assert(typeDie);
align = std::max(align, typeDie->typeAlignment());
}
return align;
}
}
return 0;
}
int logBuf(MyBuf const &b, const char*file)
{
FILE *fp = fopen(file, "w");
if (!fp)
return -1;
fprintf(fp, "%d %d %d\n", b.w, b.h, b.type);
int nt = typeSize(b.type);
for (int y = 0; y < b.h; y++)
{
for (int x = 0; x < b.w; x++)
{
const char *p = (char*)b.p +y*b.linestep + nt*x;
if (b.type == TYPE_16S)
fprintf(fp, "%hd ", (short&)*p);
else if (b.type == TYPE_16U)
fprintf(fp, "%hu ", (unsigned short&)*p);
else if (b.type == TYPE_32F)
fprintf(fp, "%f ", (float&)*p);
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
bool QgsRasterBlock::setIsNoDataExcept( const QRect & theExceptRect )
{
int top = theExceptRect.top();
int bottom = theExceptRect.bottom();
int left = theExceptRect.left();
int right = theExceptRect.right();
top = qMin( qMax( top, 0 ), mHeight - 1 );
left = qMin( qMax( left, 0 ), mWidth - 1 );
bottom = qMax( 0, qMin( bottom, mHeight - 1 ) );
right = qMax( 0, qMin( right, mWidth - 1 ) );
QgsDebugMsg( "Entered" );
if ( typeIsNumeric( mDataType ) )
{
if ( mHasNoDataValue )
{
if ( !mData )
{
QgsDebugMsg( "Data block not allocated" );
return false;
}
QgsDebugMsg( "set mData to mNoDataValue" );
int dataTypeSize = typeSize( mDataType );
QByteArray noDataByteArray = valueBytes( mDataType, mNoDataValue );
char *nodata = noDataByteArray.data();
char *nodataRow = new char[mWidth*dataTypeSize]; // full row of no data
for ( int c = 0; c < mWidth; c++ )
{
memcpy( nodataRow + c*dataTypeSize, nodata, dataTypeSize );
}
// top and bottom
for ( int r = 0; r < mHeight; r++ )
{
if ( r >= top && r <= bottom ) continue; // middle
qgssize i = static_cast< qgssize >( r ) * mWidth;
memcpy( reinterpret_cast< char* >( mData ) + i*dataTypeSize, nodataRow, dataTypeSize*mWidth );
}
// middle
for ( int r = top; r <= bottom; r++ )
{
qgssize i = static_cast< qgssize >( r ) * mWidth;
// middle left
memcpy( reinterpret_cast< char* >( mData ) + i*dataTypeSize, nodataRow, dataTypeSize*left );
// middle right
i += right + 1;
int w = mWidth - right - 1;
memcpy( reinterpret_cast< char* >( mData ) + i*dataTypeSize, nodataRow, dataTypeSize*w );
}
delete [] nodataRow;
}
else
{
// use bitmap
if ( !mNoDataBitmap )
{
if ( !createNoDataBitmap() )
{
return false;
}
}
QgsDebugMsg( "set mNoDataBitmap to 1" );
char *nodataRow = new char[mNoDataBitmapWidth]; // full row of no data
// TODO: we can simply set all bytes to 11111111 (~0) I think
memset( nodataRow, 0, mNoDataBitmapWidth );
for ( int c = 0; c < mWidth; c ++ )
{
int byte = c / 8;
int bit = c % 8;
char nodata = 0x80 >> bit;
memset( nodataRow + byte, nodataRow[byte] | nodata, 1 );
}
// top and bottom
for ( int r = 0; r < mHeight; r++ )
{
if ( r >= top && r <= bottom ) continue; // middle
qgssize i = static_cast< qgssize >( r ) * mNoDataBitmapWidth;
memcpy( mNoDataBitmap + i, nodataRow, mNoDataBitmapWidth );
}
// middle
memset( nodataRow, 0, mNoDataBitmapWidth );
for ( int c = 0; c < mWidth; c ++ )
{
if ( c >= left && c <= right ) continue; // middle
int byte = c / 8;
int bit = c % 8;
char nodata = 0x80 >> bit;
memset( nodataRow + byte, nodataRow[byte] | nodata, 1 );
}
for ( int r = top; r <= bottom; r++ )
{
qgssize i = static_cast< qgssize >( r ) * mNoDataBitmapWidth;
memcpy( mNoDataBitmap + i, nodataRow, mNoDataBitmapWidth );
}
delete [] nodataRow;
}
return true;
}
else
{
// image
if ( !mImage )
