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SVGView.cpp
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SVGView.cpp
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#include <Alert.h>
#include <Bitmap.h>
#include <Entry.h>
#include <File.h>
#include <FilePanel.h>
#include <fs_attr.h>
#include <MenuItem.h>
#include <Node.h>
#include <Path.h>
#include <Picture.h>
#include <PopUpMenu.h>
#include <Roster.h>
#include <StopWatch.h>
#include <zlib.h>
#include "CSSParser.h"
#include "expat.h"
#include "StyleParser.h"
#include "SVGStop.h"
#include "SVGColors.h"
#include "SVGShapes.h"
#include "SVGView.h"
#include "SVGContainers.h"
#include "SVGDefs.h"
#include "SVGText.h"
#include "SVGDataCreator.h"
#include "TransformIterator.h"
#include "UnitHandler.h"
#include "EvenOddIterator.h"
static sem_id fXMLHandlerLock = -1;
BSVGView::BSVGView(BRect frame, const char *name, uint32 resizeMask, uint32 flags)
: BView(frame, name, resizeMask, flags | B_SUBPIXEL_PRECISE),
fParser(NULL),
fCSSParser(NULL),
fScaleToFit(false),
fFitContent(false),
fSuperSampling(true),
fSampleSize(2),
fScale(1),
fFocusPoint(0.5, 0.5),
fViewCenter(0.5, 0.5),
fGraphicsWidth(-1),
fGraphicsHeight(-1),
fViewBounds(frame.OffsetToCopy(0, 0)),
fViewColor(BView::ViewColor()),
fGradient(NULL),
fText(NULL),
fTextBuffer(""),
fOffscreenBitmap(NULL),
fTempBitmap(NULL),
fTempView(NULL),
fEvenOdd(NULL),
fOuterFirst(true),
fOuterBounds(0, 0, 0, 0),
fInsideCSS(false),
fUpdateNeeded(false),
fTransparentHack(0),
fPulseRate(0),
fPulseThread(0),
fDropsEnabled(true),
fMenusEnabled(true),
fContextMenu(NULL),
fLocked(false)
{
fDocument = new BSVGDocument(this);
fDocument->State()->Reset(SOURCE_SET);
// specific init neccessary
SetMenusEnabled(fMenusEnabled);
SetPulseRate(fPulseRate);
fUpdateNeeded = true;
Redraw();
}
BSVGView::~BSVGView()
{
delete fDocument;
delete fOffscreenBitmap;
if (fPulseThread)
kill_thread(fPulseThread);
}
BSVGView::BSVGView(BMessage *data)
: BView(data),
fParser(NULL),
fCSSParser(NULL),
fScaleToFit(false),
fFitContent(false),
fSuperSampling(true),
fSampleSize(2),
fScale(1),
fFocusPoint(0.5, 0.5),
fViewCenter(0.5, 0.5),
fGraphicsWidth(-1),
fGraphicsHeight(-1),
fViewBounds(0, 0, 0, 0),
fViewColor(BView::ViewColor()),
fGradient(NULL),
fText(NULL),
fTextBuffer(""),
fOffscreenBitmap(NULL),
fTempBitmap(NULL),
fTempView(NULL),
fEvenOdd(NULL),
fOuterFirst(true),
fOuterBounds(0, 0, 0, 0),
fInsideCSS(false),
fUpdateNeeded(false),
fTransparentHack(0),
fPulseRate(0),
fPulseThread(0),
fDropsEnabled(true),
fMenusEnabled(true),
fContextMenu(NULL),
fLocked(false)
{
data->FindFloat("_scale", &fScale);
data->FindPoint("_focuspoint", &fFocusPoint);
data->FindPoint("_viewcenter", &fViewCenter);
data->FindBool("_scaletofit", &fScaleToFit);
data->FindBool("_fitcontent", &fFitContent);
data->FindFloat("_graphwidth", &fGraphicsWidth);
data->FindFloat("_graphheight", &fGraphicsHeight);
SVGColor color;
data->FindInt32("_backcolor", (int32 *)&color.color);
fViewColor = color.color;
data->FindBool("_supersampling", &fSuperSampling);
data->FindInt32("_samplesize", (int32 *)&fSampleSize);
data->FindBool("_outerfirst", &fOuterFirst);
data->FindRect("_outerbounds", &fOuterBounds);
data->FindInt64("_pulserate", &fPulseRate);
SetPulseRate(fPulseRate);
data->FindRect("_innerframe", &fInnerFrame);
fOffscreenBitmap = new BBitmap(fInnerFrame, B_RGBA32, true);
data->FindBool("_dropsenabled", &fDropsEnabled);
data->FindBool("_menusenabled", &fMenusEnabled);
SetMenusEnabled(fMenusEnabled);
BMessage msg;
if (data->FindMessage("_document", &msg) == B_OK) {
fDocument = new BSVGDocument(&msg);
BSVGView *temp = this;
fDocument->PromoteDownMember((void *)&fDocument->fParent, &temp);
} else {
fDocument = new BSVGDocument(this);
}
fDocument->State()->Reset(SOURCE_SET);
fViewBounds = Bounds().OffsetToCopy(0, 0);
fUpdateNeeded = true;
Redraw();
}
BArchivable *
BSVGView::Instantiate(BMessage *data)
{
if (validate_instantiation(data, "BSVGView"))
return new BSVGView(data);
return NULL;
}
status_t
BSVGView::Archive(BMessage *data, bool deep) const
{
BView::Archive(data, deep);
data->AddFloat("_scale", fScale);
data->AddPoint("_focuspoint", fFocusPoint);
data->AddPoint("_viewcenter", fViewCenter);
data->AddBool("_scaletofit", fScaleToFit);
data->AddBool("_fitcontent", fFitContent);
data->AddFloat("_graphwidth", fGraphicsWidth);
data->AddFloat("_graphheight", fGraphicsHeight);
SVGColor color = fViewColor;
data->AddInt32("_backcolor", color.Value());
data->AddBool("_supersampling", fSuperSampling);
data->AddInt32("_samplesize", fSampleSize);
data->AddBool("_outerfirst", fOuterFirst);
data->AddRect("_outerbounds", fOuterBounds);
data->AddRect("_innerframe", fInnerFrame);
data->AddInt64("_pulserate", fPulseRate);
data->AddBool("_dropsenabled", fDropsEnabled);
data->AddBool("_menusenabled", fMenusEnabled);
if (deep) {
BMessage msg;
fDocument->Archive(&msg, deep);
data->AddMessage("_document", &msg);
}
//ADDREPADDON("application/libbsvg");
ADDREPCLASS("BSVGView");
return B_OK;
}
status_t
BSVGView::LoadFromFile(const char *name)
{
BFile file(name, B_READ_ONLY);
return ParseXMLFile(&file);
}
status_t
BSVGView::LoadFromFile(BEntry *entry)
{
BFile file(entry, B_READ_ONLY);
return ParseXMLFile(&file);
}
status_t
BSVGView::LoadFromFile(entry_ref *ref)
{
BFile file(ref, B_READ_ONLY);
return ParseXMLFile(&file);
}
status_t
BSVGView::LoadFromFile(BFile *file)
{
return ParseXMLFile(file);
}
status_t
BSVGView::LoadFromAttribute(const char *filename, const char *attribute)
{
BNode node(filename);
return ParseXMLNode(&node, attribute);
}
status_t
BSVGView::LoadFromAttribute(BEntry *entry, const char *attribute)
{
BNode node(entry);
return ParseXMLNode(&node, attribute);
}
status_t
BSVGView::LoadFromAttribute(entry_ref *ref, const char *attribute)
{
BNode node(ref);
return ParseXMLNode(&node, attribute);
}
status_t
BSVGView::LoadFromAttribute(BNode *in_node, const char *attribute)
{
BNode node(*in_node);
return ParseXMLNode(&node, attribute);
}
status_t
BSVGView::LoadFromPositionIO(BPositionIO *positionio)
{
return ParseXMLData(positionio);
}
status_t
BSVGView::LoadFromBuffer(char *buffer, off_t length)
{
return ParseXMLBuffer(buffer, length);
}
status_t
BSVGView::LoadFromString(BString &data)
{
int32 len = data.Length();
char *buffer = data.LockBuffer(len);
status_t result = ParseXMLBuffer(buffer, len);
data.UnlockBuffer();
return result;
}
status_t
BSVGView::ExportToFile(const char *name)
{
BFile file(name, B_WRITE_ONLY | B_CREATE_FILE);
return ExportToFile(&file);
}
status_t
BSVGView::ExportToFile(BEntry *entry)
{
BFile file(entry, B_WRITE_ONLY | B_CREATE_FILE);
return ExportToFile(&file);
}
status_t
BSVGView::ExportToFile(entry_ref *ref)
{
BFile file(ref, B_WRITE_ONLY | B_CREATE_FILE);
return ExportToFile(&file);
}
status_t
BSVGView::ExportToFile(BFile *file)
{
BString data;
status_t res = ExportToString(data);
if (res != B_OK)
return res;
file->Write(data.String(), data.Length());
return B_OK;
}
status_t
BSVGView::ExportToAttribute(const char *filename, const char *attribute)
{
BNode node(filename);
return ExportToAttribute(&node, attribute);
}
status_t
BSVGView::ExportToAttribute(BEntry *entry, const char *attribute)
{
BNode node(entry);
return ExportToAttribute(&node, attribute);
}
status_t
BSVGView::ExportToAttribute(entry_ref *ref, const char *attribute)
{
BNode node(ref);
return ExportToAttribute(&node, attribute);
}
status_t
BSVGView::ExportToAttribute(BNode *node, const char *attribute)
{
if (!node || node->InitCheck() != B_OK)
return B_ERROR;
BString data;
status_t res = ExportToString(data);
if (res != B_OK)
return res;
node->WriteAttr(attribute, 'zICO', 0, data.String(), data.Length());
return B_OK;
}
status_t
BSVGView::ExportToPositionIO(BPositionIO *positionio)
{
if (!positionio)
return B_ERROR;
BString data;
status_t res = ExportToString(data);
if (res != B_OK)
return res;
positionio->Write(data.String(), data.Length());
return B_OK;
}
status_t
BSVGView::ExportToString(BString &data)
{
fDocument->RecreateData();
fDocument->CollectData(data);
return B_OK;
}
void
BSVGView::SavePanel()
{
BFilePanel *panel = new BFilePanel(B_SAVE_PANEL);
panel->SetTarget(this);
panel->SetMessage(new BMessage('save'));
panel->SetSaveText("untitled.svg");
panel->Show();
}
void
BSVGView::ShowSource()
{
BString tempname = "/boot/var/tmp/svgsource-";
tempname << rand() % 1000 << ".tmp";
BFile file(tempname.String(), B_READ_WRITE | B_CREATE_FILE);
ExportToFile(&file);
BString attribute("text/plain");
file.WriteAttrString("BEOS:TYPE", &attribute);
BEntry entry(tempname.String());
entry_ref ref;
entry.GetRef(&ref);
BRoster().Launch(&ref);
}
void
BSVGView::AddElement(BSVGElement *element)
{
if (!fDocument->IsOpen())
fDocument->OpenElement();
fDocument->LastContainer()->AddElement(element);
fUpdateNeeded = true;
Redraw();
}
BSVGElement *
BSVGView::RemoveElement(const char *id, bool deep)
{
return fDocument->RemoveElement(id, deep);
fUpdateNeeded = true;
Redraw();
}
BSVGElement *
BSVGView::RemoveElement(BSVGElement *element, bool deep)
{
return fDocument->RemoveElement(element, deep);
fUpdateNeeded = true;
Redraw();
}
BSVGElement *
BSVGView::RemoveElementAt(int index, bool deep)
{
return fDocument->RemoveElementAt(index, deep);
fUpdateNeeded = true;
Redraw();
}
BSVGElement *
BSVGView::ElementAt(int index, bool deep)
{
return fDocument->ElementAt(index, deep);
}
int32
BSVGView::CountElements(bool deep)
{
return fDocument->CountElements(deep);
}
BSVGElement *
BSVGView::FindElement(const char *id, int32 of_type)
{
return FindElement(BString(id), of_type);
}
BSVGElement *
BSVGView::FindElement(const BString &id, int32 of_type)
{
return fDocument->FindElement(id, of_type);
}
int32
BSVGView::FindElements(const char *_class, BSVGElement *elements[])
{
return FindElements(BString(_class), elements);
}
int32
BSVGView::FindElements(const BString &_class, BSVGElement *elements[])
{
ElementList list;
if (fDocument->FindElements(_class, list) != B_OK || list.CountItems() <= 0) {
*elements = NULL;
return 0;
}
elements = new BSVGElement *[list.CountItems()];
for (int i = 0; i < list.CountItems(); i++)
elements[i] = list.ItemAt(i);
return list.CountItems();
}
void
BSVGView::ClearElements()
{
delete fDocument;
fDocument = new BSVGDocument(this);
fDocument->State()->Reset(SOURCE_SET);
}
void
BSVGView::SetAttributeByClass(const BString &_class, const BString &attribute, const BString &value)
{
ElementList list(10, false);
if (fDocument->FindElements(_class, list) != B_OK)
return;
for (int i = 0; i < list.CountItems(); i++) {
attribute_s *attr = new attribute_s(attribute, value);
list.ItemAt(i)->AddAttribute(attr, true);
}
fUpdateNeeded = true;
Redraw();
}
void
BSVGView::SetAttributeByID(const BString &id, const BString &attribute, const BString &value)
{
BSVGElement *element = fDocument->FindElement(id);
if (!element)
return;
attribute_s *attr = new attribute_s(attribute, value);
element->AddAttribute(attr, true);
fUpdateNeeded = true;
Redraw();
}
void
BSVGView::SetTextByClass(const BString &_class, const BString &text)
{
ElementList list(10, false);
if (fDocument->FindElements(_class, list) != B_OK)
return;
for (int i = 0; i < list.CountItems(); i++) {
element_t type = list.ItemAt(i)->Type();
if (type == B_SVG_TEXTSPAN
|| type == B_SVG_STRING
|| type == B_SVG_TEXTPATH
|| type == B_SVG_TEXT) {
BSVGTextSpan *element = (BSVGTextSpan *)list.ItemAt(i);
if (element) {
BSVGString *string = element->FirstText();
if (string) {
string->SetText(text);
element->FinalizeShape();
element->CloseContainer();
element->PrepareRendering();
element->RenderCommon();
} else {
element->AddString(text);
element->FinalizeShape();
element->CloseContainer();
element->PrepareRendering();
element->RenderCommon();
}
}
}
}
fUpdateNeeded = true;
Redraw();
}
void
BSVGView::SetTextByID(const BString &id, const BString &text)
{
BSVGElement *found = fDocument->FindElement(id);
if (!found)
return;
element_t type = found->Type();
if (type == B_SVG_TEXTSPAN
|| type == B_SVG_STRING
|| type == B_SVG_TEXTPATH
|| type == B_SVG_TEXT) {
BSVGTextSpan *element = (BSVGTextSpan *)found;
if (element) {
BSVGString *string = element->FirstText();
if (string) {
string->SetText(text);
element->FinalizeShape();
element->CloseContainer();
element->PrepareRendering();
element->RenderCommon();
} else {
element->AddString(text);
element->FinalizeShape();
element->CloseContainer();
element->PrepareRendering();
element->RenderCommon();
}
}
}
fUpdateNeeded = true;
Redraw();
}
void
BSVGView::Clear()
{
ClearElements();
fGraphicsWidth = -1;
fGraphicsHeight = -1;
fOuterBounds = BRect(0, 0, 0, 0);
fOuterFirst = true;
fGradient = NULL;
fText = NULL;
fTextBuffer.SetTo("");
fUpdateNeeded = true;
Redraw();
}
void
BSVGView::UpdateInnerFrame()
{
BRect bounds(0, 0, 0, 0);
if (fFitContent || fGraphicsWidth < 0 || fGraphicsHeight < 0) {
bool first = true;
fDocument->State()->general_transform.Reset();
fDocument->PrepareRendering();
fDocument->CollectBounds(fOuterBounds, &first);
bounds = fOuterBounds.OffsetToCopy(0, 0);
} else {
bounds.left = 0;
bounds.top = 0;
bounds.right = fGraphicsWidth;
bounds.bottom = fGraphicsHeight;
}
if (fScaleToFit) {
fScale = MIN(fViewBounds.right / bounds.Width(), fViewBounds.bottom / bounds.Height());
bounds.left *= fScale;
bounds.top *= fScale;
bounds.right *= fScale;
bounds.bottom *= fScale;
}
fInnerFrame = bounds;
}
//#define HIT_STATISTIC
#ifdef HIT_STATISTIC
static int fBitmapMissCount = 0;
static int fBitmapHitCount = 0;
static int fViewMissCount = 0;
static int fViewHitCount = 0;
static int fEvenOddMissCount = 0;
static int fEvenOddHitCount = 0;
#endif
BBitmap *
BSVGView::NeedTempBitmap(BRect frame)
{
BRect current(0, 0, 0, 0);
if (fTempBitmap)
current = fTempBitmap->Bounds();
// check if bitmap is large enough and only recreate if not
if (current.right < frame.right || current.bottom < frame.bottom) {
if (fTempView) {
fTempBitmap->Lock();
fTempView->RemoveSelf();
fTempBitmap->Unlock();
delete fTempView;
fTempView = NULL;
}
current.right = MAX(current.right, frame.right);
current.bottom = MAX(current.bottom, frame.bottom);
delete fTempBitmap;
fTempBitmap = new BBitmap(current, B_RGBA32, true);
#ifndef HIT_STATISTIC
}
#else
fBitmapMissCount++;
} else
fBitmapHitCount++;
#endif
return fTempBitmap;
}
BView *
BSVGView::NeedTempView(BRect frame)
{
BRect current(0, 0, 0, 0);
if (fTempView && fTempView->LockLooper()) {
current = fTempView->Bounds();
fTempView->UnlockLooper();
}
// check if view is large enough and only recreate if not
if (current.right < frame.right || current.bottom < frame.bottom) {
if (fTempView) {
fTempBitmap->Lock();
fTempView->RemoveSelf();
fTempBitmap->Unlock();
delete fTempView;
}
current.right = MAX(current.right, frame.right);
current.bottom = MAX(current.bottom, frame.bottom);
fTempView = new BView(current, "tempview", 0, B_SUBPIXEL_PRECISE);
fTempBitmap->AddChild(fTempView);
#ifndef HIT_STATISTIC
}
#else
fViewMissCount++;
} else
fViewHitCount++;
#endif
return fTempView;
}
EvenOddIterator *
BSVGView::NeedEvenOdd(BRect frame)
{
BRect current(0, 0, 0, 0);
if (fEvenOdd)
current = fEvenOdd->Bounds();
// check if iterator is large enough and only recreate if not
if (current.right < frame.right || current.bottom < frame.bottom) {
current.right = MAX(current.right, frame.right);
current.bottom = MAX(current.bottom, frame.bottom);
delete fEvenOdd;
fEvenOdd = new EvenOddIterator(current);
#ifndef HIT_STATISTIC
}
#else
fEvenOddMissCount++;
} else
fEvenOddHitCount++;
#endif
return fEvenOdd;
}
extern bigtime_t creationtime;
void
BSVGView::PrepareTempBitmap()
{
#ifdef HIT_STATISTIC
fBitmapMissCount = 0;
fBitmapHitCount = 0;
fViewMissCount = 0;
fViewHitCount = 0;
fEvenOddMissCount = 0;
fEvenOddHitCount = 0;
creationtime = 0;
#endif
fTempBitmap = NULL;
fTempView = NULL;
fEvenOdd = NULL;
BRect frame(0, 0, fOuterBounds.Width() * fScale * CLAMP(fSampleSize, 1, 5), fOuterBounds.Height() * fScale * CLAMP(fSampleSize, 1, 5));
NeedTempBitmap(frame);
NeedTempView(frame);
NeedEvenOdd(frame);
}
void
BSVGView::FreeTempBitmap()
{
if (fTempBitmap)
fTempBitmap->Lock();
if (fTempView)
fTempView->RemoveSelf();
delete fTempView;
delete fTempBitmap;
delete fEvenOdd;
fTempView = NULL;
fTempBitmap = NULL;
fEvenOdd = NULL;
#ifdef HIT_STATISTIC
printf("statistics:\n");
printf("bitmapmiss: %d\nbitmaphit: %d\n", fBitmapMissCount, fBitmapHitCount);
printf("viewmiss: %d\nviewhit: %d\n", fViewMissCount, fViewHitCount);
printf("evenoddmiss: %d\nevenoddhit: %d\n", fEvenOddMissCount, fEvenOddHitCount);
printf("creationtime: %lld\n", creationtime);
#endif
}
#define WEIGHTED
void
BSVGView::ScaleOffscreen()
{
int bytes = fOffscreenBitmap->BytesPerRow() / 4;
int height = ((fOffscreenBitmap->Bounds().IntegerHeight() / fSampleSize)) * bytes;
int line = 0;
uint32 *bits = (uint32 *)fOffscreenBitmap->Bits();
uint32 red = 0, green = 0, blue = 0, alpha = 0;
uint32 *abspos = NULL;
uint8 *pixel = new uint8[fSampleSize * fSampleSize * 4];
//BStopWatch *alias = new BStopWatch("aliaswatch");
switch (fSampleSize) {
#ifdef WEIGHTED
case 5: {
for (int i = 0; i < height; i += bytes, line += bytes * 5) {
abspos = bits + line;
for (int j = 0; j < bytes; j++) {
memcpy(pixel , abspos , 20);
memcpy(pixel + 20, abspos + bytes , 20);
memcpy(pixel + 40, abspos + bytes * 2, 20);
memcpy(pixel + 60, abspos + bytes * 3, 20);
memcpy(pixel + 80, abspos + bytes * 4, 20);
red = ( pixel[ 0] * 1 + pixel[ 4] * 2 + pixel[ 8] * 3 + pixel[12] * 2 + pixel[16] * 1 +
pixel[20] * 2 + pixel[24] * 3 + pixel[28] * 4 + pixel[32] * 3 + pixel[36] * 2 +
pixel[40] * 3 + pixel[44] * 4 + pixel[48] * 5 + pixel[52] * 4 + pixel[56] * 3 +
pixel[60] * 2 + pixel[64] * 3 + pixel[68] * 4 + pixel[72] * 3 + pixel[76] * 2 +
pixel[80] * 1 + pixel[84] * 2 + pixel[88] * 3 + pixel[92] * 2 + pixel[96] * 1) / 65;
green = ( pixel[ 1] * 1 + pixel[ 5] * 2 + pixel[ 9] * 3 + pixel[13] * 2 + pixel[17] * 1 +
pixel[21] * 2 + pixel[25] * 3 + pixel[29] * 4 + pixel[33] * 3 + pixel[37] * 2 +
pixel[41] * 3 + pixel[45] * 4 + pixel[49] * 5 + pixel[53] * 4 + pixel[57] * 3 +
pixel[61] * 2 + pixel[65] * 3 + pixel[69] * 4 + pixel[73] * 3 + pixel[77] * 2 +
pixel[81] * 1 + pixel[85] * 2 + pixel[89] * 3 + pixel[93] * 2 + pixel[97] * 1) / 65;
blue = ( pixel[ 2] * 1 + pixel[ 6] * 2 + pixel[10] * 3 + pixel[14] * 2 + pixel[18] * 1 +
pixel[22] * 2 + pixel[26] * 3 + pixel[30] * 4 + pixel[34] * 3 + pixel[38] * 2 +
pixel[42] * 3 + pixel[46] * 4 + pixel[50] * 5 + pixel[54] * 4 + pixel[58] * 3 +
pixel[62] * 2 + pixel[66] * 3 + pixel[70] * 4 + pixel[74] * 3 + pixel[78] * 2 +
pixel[82] * 1 + pixel[86] * 2 + pixel[90] * 3 + pixel[94] * 2 + pixel[98] * 1) / 65;
alpha = ( pixel[ 3] * 1 + pixel[ 7] * 2 + pixel[11] * 3 + pixel[15] * 2 + pixel[19] * 1 +
pixel[23] * 2 + pixel[27] * 3 + pixel[31] * 4 + pixel[35] * 3 + pixel[39] * 2 +
pixel[43] * 3 + pixel[47] * 4 + pixel[51] * 5 + pixel[55] * 4 + pixel[59] * 3 +
pixel[63] * 2 + pixel[67] * 3 + pixel[71] * 4 + pixel[75] * 3 + pixel[79] * 2 +
pixel[83] * 1 + pixel[87] * 2 + pixel[91] * 3 + pixel[95] * 2 + pixel[99] * 1) / 65;
bits[i + j] = (alpha << 24) + (blue << 16) + (green << 8) + red;
abspos += 5;
}
}
} break;
case 4: {
for (int i = 0; i < height; i += bytes, line += bytes * 4) {
abspos = bits + line;
for (int j = 0; j < bytes; j++) {
memcpy(pixel , abspos , 16);
memcpy(pixel + 16, abspos + bytes , 16);
memcpy(pixel + 32, abspos + bytes * 2, 16);
memcpy(pixel + 48, abspos + bytes * 3, 16);
red = ( pixel[ 0] * 1 + pixel[ 4] * 2 + pixel[ 8] * 2 + pixel[12] * 1 +
pixel[16] * 2 + pixel[20] * 3 + pixel[24] * 3 + pixel[28] * 2 +
pixel[32] * 2 + pixel[36] * 3 + pixel[40] * 3 + pixel[44] * 2 +
pixel[48] * 1 + pixel[52] * 2 + pixel[56] * 2 + pixel[60] * 1) >> 5;
green = ( pixel[ 1] * 1 + pixel[ 5] * 2 + pixel[ 9] * 2 + pixel[13] * 1 +
pixel[17] * 2 + pixel[21] * 3 + pixel[25] * 3 + pixel[29] * 2 +
pixel[33] * 2 + pixel[37] * 3 + pixel[41] * 3 + pixel[45] * 2 +
pixel[49] * 1 + pixel[53] * 2 + pixel[57] * 2 + pixel[61] * 1) >> 5;
blue = ( pixel[ 2] * 1 + pixel[ 6] * 2 + pixel[10] * 2 + pixel[14] * 1 +
pixel[18] * 2 + pixel[22] * 3 + pixel[26] * 3 + pixel[30] * 2 +
pixel[34] * 2 + pixel[38] * 3 + pixel[42] * 3 + pixel[46] * 2 +
pixel[50] * 1 + pixel[54] * 2 + pixel[58] * 2 + pixel[62] * 1) >> 5;
alpha = ( pixel[ 3] * 1 + pixel[ 7] * 2 + pixel[11] * 2 + pixel[15] * 1 +
pixel[19] * 2 + pixel[23] * 3 + pixel[27] * 3 + pixel[31] * 2 +
pixel[35] * 2 + pixel[39] * 3 + pixel[43] * 3 + pixel[47] * 2 +
pixel[51] * 1 + pixel[55] * 2 + pixel[59] * 2 + pixel[63] * 1) >> 5;
bits[i + j] = (alpha << 24) + (blue << 16) + (green << 8) + red;
abspos += 4;
}
}
} break;
case 3: {
for (int i = 0; i < height; i += bytes, line += bytes * 3) {
abspos = bits + line;
for (int j = 0; j < bytes; j++) {
memcpy(pixel , abspos , 12);
memcpy(pixel + 12, abspos + bytes , 12);
memcpy(pixel + 24, abspos + bytes * 2, 12);
red = ( pixel[ 0] * 1 + pixel[ 4] * 2 + pixel[ 8] * 1 +
pixel[12] * 2 + pixel[16] * 3 + pixel[20] * 2 +
pixel[24] * 1 + pixel[28] * 2 + pixel[32] * 1) / 15;
green = ( pixel[ 1] * 1 + pixel[ 5] * 2 + pixel[ 9] * 1 +
pixel[13] * 2 + pixel[17] * 3 + pixel[21] * 2 +
pixel[25] * 1 + pixel[29] * 2 + pixel[33] * 1) / 15;
blue = ( pixel[ 2] * 1 + pixel[ 6] * 2 + pixel[10] * 1 +
pixel[14] * 2 + pixel[18] * 3 + pixel[22] * 2 +
pixel[26] * 1 + pixel[30] * 2 + pixel[34] * 1) / 15;
alpha = ( pixel[ 3] * 1 + pixel[ 7] * 2 + pixel[11] * 1 +
pixel[15] * 2 + pixel[19] * 3 + pixel[23] * 2 +
pixel[27] * 1 + pixel[31] * 2 + pixel[35] * 1) / 15;
bits[i + j] = (alpha << 24) + (blue << 16) + (green << 8) + red;
abspos += 3;
}
}
} break;
#else
case 5: {
for (int i = 0; i < height; i += bytes, line += bytes * 5) {
abspos = bits + line;
for (int j = 0; j < bytes; j++) {
memcpy(pixel , abspos , 20);
memcpy(pixel + 20, abspos + bytes , 20);
memcpy(pixel + 40, abspos + bytes * 2, 20);
memcpy(pixel + 60, abspos + bytes * 3, 20);
memcpy(pixel + 80, abspos + bytes * 4, 20);
red = (pixel[0] + pixel[4] + pixel[ 8] + pixel[12] + pixel[16] + pixel[20] + pixel[24] + pixel[28] + pixel[32] + pixel[36] + pixel[40] + pixel[44] + pixel[48] + pixel[52] + pixel[56] + pixel[60] + pixel[64] + pixel[68] + pixel[72] + pixel[76] + pixel[80]
+ pixel[84] + pixel[88] + pixel[92] + pixel[96]) / 25;
green = (pixel[1] + pixel[5] + pixel[ 9] + pixel[13] + pixel[17] + pixel[21] + pixel[25] + pixel[29] + pixel[33] + pixel[37] + pixel[41] + pixel[45] + pixel[49] + pixel[53] + pixel[57] + pixel[61] + pixel[65] + pixel[69] + pixel[73] + pixel[77] + pixel[81]
+ pixel[85] + pixel[89] + pixel[93] + pixel[97]) / 25;
blue = (pixel[2] + pixel[6] + pixel[10] + pixel[14] + pixel[18] + pixel[22] + pixel[26] + pixel[30] + pixel[34] + pixel[38] + pixel[42] + pixel[46] + pixel[50] + pixel[54] + pixel[58] + pixel[62] + pixel[66] + pixel[70] + pixel[74] + pixel[78] + pixel[82]
+ pixel[86] + pixel[90] + pixel[94] + pixel[98]) / 25;
alpha = (pixel[3] + pixel[7] + pixel[11] + pixel[15] + pixel[19] + pixel[23] + pixel[27] + pixel[31] + pixel[35] + pixel[39] + pixel[43] + pixel[47] + pixel[51] + pixel[55] + pixel[59] + pixel[63] + pixel[67] + pixel[71] + pixel[75] + pixel[79] + pixel[83]
+ pixel[87] + pixel[91] + pixel[95] + pixel[99]) / 25;
bits[i + j] = (alpha << 24) + (blue << 16) + (green << 8) + red;
abspos += 5;
}
}
} break;
case 4: {
for (int i = 0; i < height; i += bytes, line += bytes * 4) {
abspos = bits + line;
for (int j = 0; j < bytes; j++) {
memcpy(pixel , abspos , 16);
memcpy(pixel + 16, abspos + bytes , 16);
memcpy(pixel + 32, abspos + bytes * 2, 16);
memcpy(pixel + 48, abspos + bytes * 3, 16);
red = (pixel[0] + pixel[4] + pixel[ 8] + pixel[12] + pixel[16] + pixel[20] + pixel[24] + pixel[28] + pixel[32] + pixel[36] + pixel[40] + pixel[44] + pixel[48] + pixel[52] + pixel[56] + pixel[60]) >> 4;
green = (pixel[1] + pixel[5] + pixel[ 9] + pixel[13] + pixel[17] + pixel[21] + pixel[25] + pixel[29] + pixel[33] + pixel[37] + pixel[41] + pixel[45] + pixel[49] + pixel[53] + pixel[57] + pixel[61]) >> 4;
blue = (pixel[2] + pixel[6] + pixel[10] + pixel[14] + pixel[18] + pixel[22] + pixel[26] + pixel[30] + pixel[34] + pixel[38] + pixel[42] + pixel[46] + pixel[50] + pixel[54] + pixel[58] + pixel[62]) >> 4;
alpha = (pixel[3] + pixel[7] + pixel[11] + pixel[15] + pixel[19] + pixel[23] + pixel[27] + pixel[31] + pixel[35] + pixel[39] + pixel[43] + pixel[47] + pixel[51] + pixel[55] + pixel[59] + pixel[63]) >> 4;
bits[i + j] = (alpha << 24) + (blue << 16) + (green << 8) + red;
abspos += 4;
}
}
} break;
case 3: {
for (int i = 0; i < height; i += bytes, line += bytes * 3) {
abspos = bits + line;
for (int j = 0; j < bytes; j++) {
memcpy(pixel , abspos , 12);
memcpy(pixel + 12, abspos + bytes , 12);
memcpy(pixel + 24, abspos + bytes * 2, 12);
red = (pixel[0] + pixel[4] + pixel[ 8] + pixel[12] + pixel[16] + pixel[20] + pixel[24] + pixel[28] + pixel[32]) / 9;
green = (pixel[1] + pixel[5] + pixel[ 9] + pixel[13] + pixel[17] + pixel[21] + pixel[25] + pixel[29] + pixel[33]) / 9;
blue = (pixel[2] + pixel[6] + pixel[10] + pixel[14] + pixel[18] + pixel[22] + pixel[26] + pixel[30] + pixel[34]) / 9;
alpha = (pixel[3] + pixel[7] + pixel[11] + pixel[15] + pixel[19] + pixel[23] + pixel[27] + pixel[31] + pixel[35]) / 9;
bits[i + j] = (alpha << 24) + (blue << 16) + (green << 8) + red;
abspos += 3;
}
}
} break;
#endif
case 2: {
for (int i = 0; i < height; i += bytes, line += bytes * 2) {
abspos = bits + line;
for (int j = 0; j < bytes; j++) {
memcpy(pixel , abspos , 8);
memcpy(pixel + 8, abspos + bytes, 8);
red = (pixel[0] + pixel[4] + pixel[ 8] + pixel[12]) >> 2;
green = (pixel[1] + pixel[5] + pixel[ 9] + pixel[13]) >> 2;
blue = (pixel[2] + pixel[6] + pixel[10] + pixel[14]) >> 2;
alpha = (pixel[3] + pixel[7] + pixel[11] + pixel[15]) >> 2;
bits[i + j] = (alpha << 24) + (blue << 16) + (green << 8) + red;
abspos += 2;
}