bool GIFImageDecoder::haveDecodedRow(unsigned frameIndex, unsigned char* rowBuffer, unsigned char* rowEnd, unsigned rowNumber, unsigned repeatCount, bool writeTransparentPixels)
{
const GIFFrameReader* frameReader = m_reader->frame_reader;
// The pixel data and coordinates supplied to us are relative to the frame's
// origin within the entire image size, i.e.
// (frameReader->x_offset, frameReader->y_offset). There is no guarantee
// that (rowEnd - rowBuffer) == (size().width() - frameReader->x_offset), so
// we must ensure we don't run off the end of either the source data or the
// row's X-coordinates.
int xBegin = upperBoundScaledX(frameReader->x_offset);
int yBegin = upperBoundScaledY(frameReader->y_offset + rowNumber);
int xEnd = lowerBoundScaledX(std::min(xBegin + static_cast<int>(rowEnd - rowBuffer), size().width()) - 1, xBegin + 1) + 1;
int yEnd = lowerBoundScaledY(std::min(yBegin + static_cast<int>(repeatCount), size().height()) - 1, yBegin + 1) + 1;
if (!rowBuffer || (xBegin < 0) || (yBegin < 0) || (xEnd <= xBegin) || (yEnd <= yBegin))
return true;
// Get the colormap.
const unsigned char* colorMap;
unsigned colorMapSize;
if (frameReader->is_local_colormap_defined) {
colorMap = frameReader->local_colormap;
colorMapSize = (unsigned)frameReader->local_colormap_size;
} else {
colorMap = m_reader->global_colormap;
colorMapSize = m_reader->global_colormap_size;
}
if (!colorMap)
return true;
// Initialize the frame if necessary.
RGBA32Buffer& buffer = m_frameBufferCache[frameIndex];
if ((buffer.status() == RGBA32Buffer::FrameEmpty) && !initFrameBuffer(frameIndex))
return false;
// Write one row's worth of data into the frame.
for (int x = xBegin; x < xEnd; ++x) {
const unsigned char sourceValue = *(rowBuffer + (m_scaled ? m_scaledColumns[x] : x) - frameReader->x_offset);
if ((!frameReader->is_transparent || (sourceValue != frameReader->tpixel)) && (sourceValue < colorMapSize)) {
const size_t colorIndex = static_cast<size_t>(sourceValue) * 3;
buffer.setRGBA(x, yBegin, colorMap[colorIndex], colorMap[colorIndex + 1], colorMap[colorIndex + 2], 255);
} else {
m_currentBufferSawAlpha = true;
// We may or may not need to write transparent pixels to the buffer.
// If we're compositing against a previous image, it's wrong, and if
// we're writing atop a cleared, fully transparent buffer, it's
// unnecessary; but if we're decoding an interlaced gif and
// displaying it "Haeberli"-style, we must write these for passes
// beyond the first, or the initial passes will "show through" the
// later ones.
if (writeTransparentPixels)
buffer.setRGBA(x, yBegin, 0, 0, 0, 0);
}
}
// Tell the frame to copy the row data if need be.
if (repeatCount > 1)
buffer.copyRowNTimes(xBegin, xEnd, yBegin, yEnd);
return true;
}
void LightSource::init(const std::string& vertexPath, const std::string& fragmentPath) {
shadowShader.compileShaders(vertexPath, fragmentPath, " ");
shadowShader.addAttribute("vertexPosition");
shadowShader.linkShaders();
initTex();
initFrameBuffer();
}
int main(int argc, char** argv) {
fullscreen = false;
grab = false;
quit = false;
initScreen();
initFrameBuffer();
createGLContext();
createColorMap();
createWindow();
createBlankCursor();
int x = 0;
while(x<5000) {
renderFrame();
updateWindowTitle();
x++;
}
/* Cleanup
glXDestroyWindow(display, glxwindow);
xcb_destroy_window(connection, window);
glXDestroyContext(display, context);
XCloseDisplay(display);
*/
return 0;
}
void GIFImageDecoder::haveDecodedRow(unsigned frameIndex,
unsigned char* rowBuffer,
unsigned char* rowEnd,
unsigned rowNumber,
unsigned repeatCount,
bool writeTransparentPixels)
{
// The pixel data and coordinates supplied to us are relative to the frame's
// origin within the entire image size, i.e.
// (m_reader->frameXOffset(), m_reader->frameYOffset()).
int x = m_reader->frameXOffset();
const int y = m_reader->frameYOffset() + rowNumber;
// Sanity-check the arguments.
if ((rowBuffer == 0) || (y >= size().height()))
return;
// Get the colormap.
unsigned colorMapSize;
unsigned char* colorMap;
m_reader->getColorMap(colorMap, colorMapSize);
if (!colorMap)
return;
// Initialize the frame if necessary.
RGBA32Buffer& buffer = m_frameBufferCache[frameIndex];
if ((buffer.status() == RGBA32Buffer::FrameEmpty) && !initFrameBuffer(frameIndex))
return;
// Write one row's worth of data into the frame. There is no guarantee that
// (rowEnd - rowBuffer) == (size().width() - m_reader->frameXOffset()), so
// we must ensure we don't run off the end of either the source data or the
// row's X-coordinates.
for (unsigned char* sourceAddr = rowBuffer; (sourceAddr != rowEnd) && (x < size().width()); ++sourceAddr, ++x) {
const unsigned char sourceValue = *sourceAddr;
if ((!m_reader->isTransparent() || (sourceValue != m_reader->transparentPixel())) && (sourceValue < colorMapSize)) {
const size_t colorIndex = static_cast<size_t>(sourceValue) * 3;
buffer.setRGBA(x, y, colorMap[colorIndex], colorMap[colorIndex + 1], colorMap[colorIndex + 2], 255);
} else {
m_currentBufferSawAlpha = true;
// We may or may not need to write transparent pixels to the buffer.
// If we're compositing against a previous image, it's wrong, and if
// we're writing atop a cleared, fully transparent buffer, it's
// unnecessary; but if we're decoding an interlaced gif and
// displaying it "Haeberli"-style, we must write these for passes
// beyond the first, or the initial passes will "show through" the
// later ones.
if (writeTransparentPixels)
buffer.setRGBA(x, y, 0, 0, 0, 0);
}
}
// Tell the frame to copy the row data if need be.
if (repeatCount > 1)
buffer.copyRowNTimes(m_reader->frameXOffset(), x, y, std::min(y + static_cast<int>(repeatCount), size().height()));
}
bool OffscreenRenderer::makeCurrent(int width, int height, bool sampleBuffers)
{
ASSERT(mainGlWidget);
// Considering weak graphics cards glClear is faster when the color and depth buffers are not greater then they have to be.
// So we create an individual buffer for each size in demand.
std::unordered_map<unsigned int, Buffer>::iterator it = renderBuffers.find(width << 16 | height << 1 | (sampleBuffers ? 1 : 0));
if(it == renderBuffers.end())
{
Buffer& buffer = renderBuffers[width << 16 | height << 1 | (sampleBuffers ? 1 : 0)];
#ifdef FIX_MACOS_BROKEN_TEXTURES_ON_NVIDIA_BUG
if(!initFrameBuffer(width, height, buffer))
if(!initPixelBuffer(width, height, sampleBuffers, buffer))
#else
if(!initPixelBuffer(width, height, sampleBuffers, buffer))
if(!initFrameBuffer(width, height, buffer))
#endif
initHiddenWindow(width, height, buffer);
return true;
}
else
{
Buffer& buffer = it->second;
if(buffer.pbuffer)
return buffer.pbuffer->makeCurrent();
if(buffer.frameBufferId)
{
mainGlWidget->makeCurrent();
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, buffer.frameBufferId);
return true;
}
if(buffer.glWidget)
buffer.glWidget->makeCurrent();
else
mainGlWidget->makeCurrent();
return true;
}
}
void GIFImageDecoder::frameComplete(unsigned frameIndex, unsigned frameDuration, RGBA32Buffer::FrameDisposalMethod disposalMethod)
{
// Initialize the frame if necessary. Some GIFs insert do-nothing frames,
// in which case we never reach haveDecodedRow() before getting here.
RGBA32Buffer& buffer = m_frameBufferCache[frameIndex];
IntRect& rect = m_rects[frameIndex];
if ((buffer.status() == RGBA32Buffer::FrameEmpty) && !initFrameBuffer(frameIndex))
return;
buffer.setStatus(RGBA32Buffer::FrameComplete);
buffer.setDuration(frameDuration);
buffer.setDisposalMethod(disposalMethod);
if (!m_currentBufferSawAlpha) {
// The whole frame was non-transparent, so it's possible that the entire
// resulting buffer was non-transparent, and we can setHasAlpha(false).
if (rect.contains(IntRect(IntPoint(), size())))
buffer.setHasAlpha(false);
else if (frameIndex > 0) {
// Tricky case. This frame does not have alpha only if everywhere
// outside its rect doesn't have alpha. To know whether this is
// true, we check the start state of the frame -- if it doesn't have
// alpha, we're safe.
//
// First skip over prior DisposeOverwritePrevious frames (since they
// don't affect the start state of this frame) the same way we do in
// initFrameBuffer().
const RGBA32Buffer* prevBuffer = &m_frameBufferCache[--frameIndex];
const IntRect* prevRect = &m_rects[frameIndex];
while ((frameIndex > 0)
&& (prevBuffer->disposalMethod() == RGBA32Buffer::DisposeOverwritePrevious)) {
prevBuffer = &m_frameBufferCache[--frameIndex];
prevRect = &m_rects[frameIndex];
}
// Now, if we're at a DisposeNotSpecified or DisposeKeep frame, then
// we can say we have no alpha if that frame had no alpha. But
// since in initFrameBuffer() we already copied that frame's alpha
// state into the current frame's, we need do nothing at all here.
//
// The only remaining case is a DisposeOverwriteBgcolor frame. If
// it had no alpha, and its rect is contained in the current frame's
// rect, we know the current frame has no alpha.
if ((prevBuffer->disposalMethod() == RGBA32Buffer::DisposeOverwriteBgcolor)
&& !prevBuffer->hasAlpha() && rect.contains(*prevRect))
buffer.setHasAlpha(false);
}
}
}
ImageFrame* WEBPImageDecoder::frameBufferAtIndex(size_t index)
{
if (index >= frameCount())
return 0;
ImageFrame& frame = m_frameBufferCache[index];
if (frame.status() == ImageFrame::FrameComplete)
return &frame;
Vector<size_t> framesToDecode;
size_t frameToDecode = index;
do {
framesToDecode.append(frameToDecode);
frameToDecode = m_frameBufferCache[frameToDecode].requiredPreviousFrameIndex();
} while (frameToDecode != kNotFound && m_frameBufferCache[frameToDecode].status() != ImageFrame::FrameComplete);
ASSERT(m_demux);
for (size_t i = framesToDecode.size(); i > 0; --i) {
size_t frameIndex = framesToDecode[i - 1];
if ((m_formatFlags & ANIMATION_FLAG) && !initFrameBuffer(frameIndex))
return 0;
WebPIterator webpFrame;
if (!WebPDemuxGetFrame(m_demux, frameIndex + 1, &webpFrame))
return 0;
PlatformInstrumentation::willDecodeImage("WEBP");
decode(webpFrame.fragment.bytes, webpFrame.fragment.size, false, frameIndex);
PlatformInstrumentation::didDecodeImage();
WebPDemuxReleaseIterator(&webpFrame);
if (failed())
return 0;
// We need more data to continue decoding.
if (m_frameBufferCache[frameIndex].status() != ImageFrame::FrameComplete)
break;
}
// It is also a fatal error if all data is received and we have decoded all
// frames available but the file is truncated.
if (index >= m_frameBufferCache.size() - 1 && isAllDataReceived() && m_demux && m_demuxState != WEBP_DEMUX_DONE)
setFailed();
frame.notifyBitmapIfPixelsChanged();
return &frame;
}
LRESULT CALLBACK WndProc(HWND window, UINT msg, WPARAM wParam, LPARAM lParam)
{
HDC dstDc;
PAINTSTRUCT paintInfo;
BOOL result;
switch (msg)
{
case WM_CREATE:
if (initFrameBuffer())
return -1;
if (!SetTimer(window, SCREEN_UPDATE_TIMER_ID, USER_TIMER_MINIMUM, NULL))
{
reportSysError(_T("Failed to create the display update timer."));
return -1;
}
break;
case WM_DESTROY:
deinitialize();
PostQuitMessage(exitCode);
break;
case WM_KEYDOWN:
if (wParam == VK_ESCAPE)
DestroyWindow(window);
break;
case WM_TIMER:
InvalidateRect(window, NULL, FALSE);
break;
case WM_PAINT:
dstDc = BeginPaint(window, &paintInfo);
updateScreen();
BitBlt(dstDc, - (int) bufOffset, 0, WIDTH, HEIGHT, bufDc, 0, 0, SRCCOPY);
EndPaint(window, &paintInfo);
updateFps();
break;
default:
return DefWindowProc(window, msg, wParam, lParam);
}
return 0;
}
void WEBPImageDecoder::decode(size_t index) {
if (failed())
return;
Vector<size_t> framesToDecode;
size_t frameToDecode = index;
do {
framesToDecode.append(frameToDecode);
frameToDecode =
m_frameBufferCache[frameToDecode].requiredPreviousFrameIndex();
} while (frameToDecode != kNotFound &&
m_frameBufferCache[frameToDecode].getStatus() !=
ImageFrame::FrameComplete);
ASSERT(m_demux);
for (auto i = framesToDecode.rbegin(); i != framesToDecode.rend(); ++i) {
if ((m_formatFlags & ANIMATION_FLAG) && !initFrameBuffer(*i))
return;
WebPIterator webpFrame;
if (!WebPDemuxGetFrame(m_demux, *i + 1, &webpFrame)) {
setFailed();
} else {
decodeSingleFrame(webpFrame.fragment.bytes, webpFrame.fragment.size, *i);
WebPDemuxReleaseIterator(&webpFrame);
}
if (failed())
return;
// We need more data to continue decoding.
if (m_frameBufferCache[*i].getStatus() != ImageFrame::FrameComplete)
break;
if (m_purgeAggressively)
clearCacheExceptFrame(*i);
}
// It is also a fatal error if all data is received and we have decoded all
// frames available but the file is truncated.
if (index >= m_frameBufferCache.size() - 1 && isAllDataReceived() &&
m_demux && m_demuxState != WEBP_DEMUX_DONE)
setFailed();
}
bool GIFImageDecoder::frameComplete(size_t frameIndex)
{
// Initialize the frame if necessary. Some GIFs insert do-nothing frames,
// in which case we never reach haveDecodedRow() before getting here.
ImageFrame& buffer = m_frameBufferCache[frameIndex];
if ((buffer.status() == ImageFrame::FrameEmpty) && !initFrameBuffer(frameIndex))
return false; // initFrameBuffer() has already called setFailed().
buffer.setStatus(ImageFrame::FrameComplete);
if (!m_currentBufferSawAlpha) {
// The whole frame was non-transparent, so it's possible that the entire
// resulting buffer was non-transparent, and we can setHasAlpha(false).
if (buffer.originalFrameRect().contains(IntRect(IntPoint(), size()))) {
buffer.setHasAlpha(false);
buffer.setRequiredPreviousFrameIndex(notFound);
} else if (buffer.requiredPreviousFrameIndex() != notFound) {
// Tricky case. This frame does not have alpha only if everywhere
// outside its rect doesn't have alpha. To know whether this is
// true, we check the start state of the frame -- if it doesn't have
// alpha, we're safe.
const ImageFrame* prevBuffer = &m_frameBufferCache[buffer.requiredPreviousFrameIndex()];
ASSERT(prevBuffer->disposalMethod() != ImageFrame::DisposeOverwritePrevious);
// Now, if we're at a DisposeNotSpecified or DisposeKeep frame, then
// we can say we have no alpha if that frame had no alpha. But
// since in initFrameBuffer() we already copied that frame's alpha
// state into the current frame's, we need do nothing at all here.
//
// The only remaining case is a DisposeOverwriteBgcolor frame. If
// it had no alpha, and its rect is contained in the current frame's
// rect, we know the current frame has no alpha.
if ((prevBuffer->disposalMethod() == ImageFrame::DisposeOverwriteBgcolor) && !prevBuffer->hasAlpha() && buffer.originalFrameRect().contains(prevBuffer->originalFrameRect()))
buffer.setHasAlpha(false);
}
}
return true;
}
void GIFImageDecoder::haveDecodedRow(unsigned frameIndex,
unsigned char* rowBuffer, // Pointer to single scanline temporary buffer
unsigned char* rowEnd,
unsigned rowNumber, // The row index
unsigned repeatCount) // How many times to repeat the row
{
// Resize to the width and height of the image.
RGBA32Buffer& buffer = m_frameBufferCache[frameIndex];
RGBA32Buffer* previousBuffer = (frameIndex > 0) ? &m_frameBufferCache[frameIndex-1] : 0;
bool compositeWithPreviousFrame = previousBuffer && previousBuffer->includeInNextFrame();
if (buffer.status() == RGBA32Buffer::FrameEmpty)
initFrameBuffer(buffer, previousBuffer, compositeWithPreviousFrame);
if (rowBuffer == 0)
return;
unsigned colorMapSize;
unsigned char* colorMap;
m_reader->getColorMap(colorMap, colorMapSize);
if (!colorMap)
return;
// The buffers that we draw are the entire image's width and height, so a final output frame is
// width * height RGBA32 values in size.
//
// A single GIF frame, however, can be smaller than the entire image, i.e., it can represent some sub-rectangle
// within the overall image. The rows we are decoding are within this
// sub-rectangle. This means that if the GIF frame's sub-rectangle is (x,y,w,h) then row 0 is really row
// y, and each row goes from x to x+w.
unsigned dstPos = (m_reader->frameYOffset() + rowNumber) * m_size.width() + m_reader->frameXOffset();
unsigned* dst = buffer.bytes().data() + dstPos;
unsigned* currDst = dst;
unsigned char* currentRowByte = rowBuffer;
bool hasAlpha = m_reader->isTransparent();
bool sawAlpha = false;
while (currentRowByte != rowEnd) {
if ((!hasAlpha || *currentRowByte != m_reader->transparentPixel()) && *currentRowByte < colorMapSize) {
unsigned colorIndex = *currentRowByte * 3;
unsigned red = colorMap[colorIndex];
unsigned green = colorMap[colorIndex + 1];
unsigned blue = colorMap[colorIndex + 2];
RGBA32Buffer::setRGBA(*currDst, red, green, blue, 255);
} else {
if (!sawAlpha) {
sawAlpha = true;
buffer.setHasAlpha(true);
}
if (!compositeWithPreviousFrame)
RGBA32Buffer::setRGBA(*currDst, 0, 0, 0, 0);
}
currDst++;
currentRowByte++;
}
if (repeatCount > 1) {
// Copy the row |repeatCount|-1 times.
unsigned size = (currDst - dst) * sizeof(unsigned);
unsigned width = m_size.width();
unsigned* end = buffer.bytes().data() + width * m_size.height();
currDst = dst + width;
for (unsigned i = 1; i < repeatCount; i++) {
if (currDst + size > end) // Protect against a buffer overrun from a bogus repeatCount.
break;
memcpy(currDst, dst, size);
currDst += width;
}
}
// Our partial height is rowNumber + 1, e.g., row 2 is the 3rd row, so that's a height of 3.
// Adding in repeatCount - 1 to rowNumber + 1 works out to just be rowNumber + repeatCount.
buffer.ensureHeight(rowNumber + repeatCount);
}
bool GIFImageDecoder::haveDecodedRow(size_t frameIndex, const Vector<unsigned char>& rowBuffer, size_t width, size_t rowNumber, unsigned repeatCount, bool writeTransparentPixels)
{
const GIFFrameContext* frameContext = m_reader->frameContext(frameIndex);
// The pixel data and coordinates supplied to us are relative to the frame's
// origin within the entire image size, i.e.
// (frameContext->xOffset, frameContext->yOffset). There is no guarantee
// that width == (size().width() - frameContext->xOffset), so
// we must ensure we don't run off the end of either the source data or the
// row's X-coordinates.
int xBegin = frameContext->xOffset;
int yBegin = frameContext->yOffset + rowNumber;
int xEnd = std::min(static_cast<int>(frameContext->xOffset + width), size().width());
int yEnd = std::min(static_cast<int>(frameContext->yOffset + rowNumber + repeatCount), size().height());
if (rowBuffer.isEmpty() || (xBegin < 0) || (yBegin < 0) || (xEnd <= xBegin) || (yEnd <= yBegin))
return true;
// Get the colormap.
const unsigned char* colorMap;
unsigned colorMapSize;
if (frameContext->isLocalColormapDefined) {
colorMap = m_reader->localColormap(frameContext);
colorMapSize = m_reader->localColormapSize(frameContext);
} else {
colorMap = m_reader->globalColormap();
colorMapSize = m_reader->globalColormapSize();
}
if (!colorMap)
return true;
// Initialize the frame if necessary.
ImageFrame& buffer = m_frameBufferCache[frameIndex];
if ((buffer.status() == ImageFrame::FrameEmpty) && !initFrameBuffer(frameIndex))
return false;
ImageFrame::PixelData* currentAddress = buffer.getAddr(xBegin, yBegin);
// Write one row's worth of data into the frame.
for (int x = xBegin; x < xEnd; ++x) {
const unsigned char sourceValue = rowBuffer[x - frameContext->xOffset];
if ((!frameContext->isTransparent || (sourceValue != frameContext->tpixel)) && (sourceValue < colorMapSize)) {
const size_t colorIndex = static_cast<size_t>(sourceValue) * 3;
buffer.setRGBA(currentAddress, colorMap[colorIndex], colorMap[colorIndex + 1], colorMap[colorIndex + 2], 255);
} else {
m_currentBufferSawAlpha = true;
// We may or may not need to write transparent pixels to the buffer.
// If we're compositing against a previous image, it's wrong, and if
// we're writing atop a cleared, fully transparent buffer, it's
// unnecessary; but if we're decoding an interlaced gif and
// displaying it "Haeberli"-style, we must write these for passes
// beyond the first, or the initial passes will "show through" the
// later ones.
if (writeTransparentPixels)
buffer.setRGBA(currentAddress, 0, 0, 0, 0);
}
++currentAddress;
}
// Tell the frame to copy the row data if need be.
if (repeatCount > 1)
buffer.copyRowNTimes(xBegin, xEnd, yBegin, yEnd);
return true;
}
bool GIFImageDecoder::haveDecodedRow(size_t frameIndex, GIFRow::const_iterator rowBegin, size_t width, size_t rowNumber, unsigned repeatCount, bool writeTransparentPixels)
{
const GIFFrameContext* frameContext = m_reader->frameContext(frameIndex);
// The pixel data and coordinates supplied to us are relative to the frame's
// origin within the entire image size, i.e.
// (frameContext->xOffset, frameContext->yOffset). There is no guarantee
// that width == (size().width() - frameContext->xOffset), so
// we must ensure we don't run off the end of either the source data or the
// row's X-coordinates.
const int xBegin = frameContext->xOffset();
const int yBegin = frameContext->yOffset() + rowNumber;
const int xEnd = std::min(static_cast<int>(frameContext->xOffset() + width), size().width());
const int yEnd = std::min(static_cast<int>(frameContext->yOffset() + rowNumber + repeatCount), size().height());
if (!width || (xBegin < 0) || (yBegin < 0) || (xEnd <= xBegin) || (yEnd <= yBegin))
return true;
const GIFColorMap::Table& colorTable = frameContext->localColorMap().isDefined() ? frameContext->localColorMap().table() : m_reader->globalColorMap().table();
if (colorTable.isEmpty())
return true;
GIFColorMap::Table::const_iterator colorTableIter = colorTable.begin();
// Initialize the frame if necessary.
ImageFrame& buffer = m_frameBufferCache[frameIndex];
if ((buffer.status() == ImageFrame::FrameEmpty) && !initFrameBuffer(frameIndex))
return false;
const size_t transparentPixel = frameContext->transparentPixel();
GIFRow::const_iterator rowEnd = rowBegin + (xEnd - xBegin);
ImageFrame::PixelData* currentAddress = buffer.getAddr(xBegin, yBegin);
// We may or may not need to write transparent pixels to the buffer.
// If we're compositing against a previous image, it's wrong, and if
// we're writing atop a cleared, fully transparent buffer, it's
// unnecessary; but if we're decoding an interlaced gif and
// displaying it "Haeberli"-style, we must write these for passes
// beyond the first, or the initial passes will "show through" the
// later ones.
//
// The loops below are almost identical. One writes a transparent pixel
// and one doesn't based on the value of |writeTransparentPixels|.
// The condition check is taken out of the loop to enhance performance.
// This optimization reduces decoding time by about 15% for a 3MB image.
if (writeTransparentPixels) {
for (; rowBegin != rowEnd; ++rowBegin, ++currentAddress) {
const size_t sourceValue = *rowBegin;
if ((sourceValue != transparentPixel) && (sourceValue < colorTable.size())) {
*currentAddress = colorTableIter[sourceValue];
} else {
*currentAddress = 0;
m_currentBufferSawAlpha = true;
}
}
} else {
for (; rowBegin != rowEnd; ++rowBegin, ++currentAddress) {
const size_t sourceValue = *rowBegin;
if ((sourceValue != transparentPixel) && (sourceValue < colorTable.size()))
*currentAddress = colorTableIter[sourceValue];
else
m_currentBufferSawAlpha = true;
}
}
// Tell the frame to copy the row data if need be.
if (repeatCount > 1)
buffer.copyRowNTimes(xBegin, xEnd, yBegin, yEnd);
buffer.setPixelsChanged(true);
return true;
}
void resize(int width,int height) {
releaseFrameBuffer(&frameBuffer);
initFrameBuffer(&frameBuffer,width,height);
scrw=width; scrh=height;
}
//--------------------------------------------------------------
void testApp::setup(){
ofDisableArbTex();
ofSetTextureWrap();
//configure FBO
initFrameBuffer();
//camera config
#ifdef KINECT
context.setupUsingXMLFile();
image.setup(&context);
depth.setup(&context);
xn::DepthGenerator& depthGen = depth.getXnDepthGenerator();
xn::ImageGenerator& imageGen = image.getXnImageGenerator();
XnStatus ret = xnSetViewPoint(depthGen, imageGen);
cout << "Using kinect" << endl;
#else
//ofSetLogLevel(OF_LOG_VERBOSE);
//grabber.listDevices();
//grabber.setDeviceID(7);
if(grabber.initGrabber(640, 480)){
cout << "Using grabber" << endl;
} else {
cout << "MASSIVE FAIL" <<endl;
}
#endif
convert.allocate(640, 480); //conversion of camera image to grayscale
gray.allocate(640, 480); //grayscale tracking image
kinectImage.allocate(640, 480); //image from kinect
kinectDepthImage.allocate(640, 480); //Depth image from kinect
finalMaskImage.allocate(640, 480);; //final composition mask
sceneDepthImage.allocate(640, 480);; //scenes depthmap image
finalImage.allocate(640, 480);
sceneImage.allocate(640,480);
pixelBuf = new unsigned char[640*480]; //temp buffer for kinect depth strea
colorPixelBuf = new unsigned char[640*480*3]; //temp buffer for kinect image
sceneDepthBuf = new unsigned short[640 * 480]; //depth buffer from our rendered scene
kinectDepthBuf = new unsigned short[640 * 480]; //camera image buffer
finalBuf = new unsigned char[640 * 480]; //final mask buffer
finalImageBuf = new unsigned char[640 * 480 * 3]; //final Image buffer
sceneBuffer = new unsigned char[640 * 480 * 3]; //copy of the scene in the FBO
bDraw = false;
//tracker = new ARToolKitPlus::TrackerSingleMarkerImpl<6,6,6, 1, 8>(width,height);
tracker = new ARToolKitPlus::TrackerMultiMarkerImpl<6,6,6, 1, 64>(width,height);
tracker->setPixelFormat(ARToolKitPlus::PIXEL_FORMAT_LUM);
//markerboard_480-499.cfg
if( !tracker->init( (const char *)ofToDataPath("bluedot.cfg").c_str(), (const char *)ofToDataPath("conf.cfg").c_str(), 1.0f, 1000.0f) ) // load std. ARToolKit camera file
{
printf("ERROR: init() failed\n");
delete tracker;
return;
}
// the marker in the BCH test image has a thin border...
tracker->setBorderWidth(0.125f);
// set a threshold. alternatively we could also activate automatic thresholding
//tracker->setThreshold(150);
tracker->activateAutoThreshold(true);
// let's use lookup-table undistortion for high-speed
// note: LUT only works with images up to 1024x1024
tracker->setUndistortionMode(ARToolKitPlus::UNDIST_LUT);
// RPP is more robust than ARToolKit's standard pose estimator
tracker->setPoseEstimator(ARToolKitPlus::POSE_ESTIMATOR_RPP);
tracker->setImageProcessingMode(ARToolKitPlus::IMAGE_FULL_RES);
// switch to simple ID based markers
// use the tool in tools/IdPatGen to generate markers
tracker->setMarkerMode(ARToolKitPlus::MARKER_ID_SIMPLE);
netThread = new NetworkThread(this);
netThread->start();
//load textures
ofDisableArbTex();
ofSetTextureWrap();
textures[0].loadImage("grass.png");
textures[1].loadImage("cobble.png");
textures[2].loadImage("dirt.png");
textures[3].loadImage("lava.png");
textures[4].loadImage("rock.png");
textures[5].loadImage("sand.png");
textures[6].loadImage("snow.png");
textures[7].loadImage("tree.png");
textures[8].loadImage("leaves.png");
mapWidth = 20;
mapHeight = 20;
mapDepth = 20;
mapLocked = false;
//fill our 3d vector with 20x20x20
mapLocked = true;
array3D.resize(mapWidth);
for (int i = 0; i < mapWidth; ++i) {
array3D[i].resize(mapHeight);
for (int j = 0; j < mapHeight; ++j)
array3D[i][j].resize(mapDepth);
}
//create block face data and clear map
Block b;
vList[0] = ofxVec3f(0.0f, 0.0f, -1.0f);
vList[1] = ofxVec3f(-1.0f, 0.0f, -1.0f);
vList[2] = ofxVec3f(-1.0f, 0.0f, 0.0f);
vList[3] = ofxVec3f(0.0f, 0.0f, 0.0f);
vList[4] = ofxVec3f(-1.0f, -1.0f, 0.0f);
vList[5] = ofxVec3f(0.0f, -1.0f, 0.0f);
vList[6] = ofxVec3f(0.0f, -1.0f, -1.0f);
vList[7] = ofxVec3f(-1.0f, -1.0f, -1.0f);
//vertex indices for faces
const static int faceVals[6][4] = {
{2, 1, 0, 3}, //top
{5, 4, 2, 3}, //front
{0, 6, 5, 3},//right
{4, 7, 1, 2},//left
{5, 6, 7, 5},//bottom
{0, 1, 7, 6} //back
};
for(int x=0; x < mapWidth; x++){
for(int y=0; y < mapHeight; y++){
for(int z=0; z < mapDepth; z++){
b.type = NONE;
b.textured = false;
b.visMask = VIS_TOP;
for(int a = 0; a < 6; a++){
for (int c = 0; c < 4; c++){
b.faceList[a][c] = faceVals[a][c];
}
}
array3D[x][y][z] = b;
}
}
}
//add some test blocks to play with when offline
b.type = GRASS;
b.textured = true;
b.textureRef = 0;
b.visMask = 63;
array3D[1][1][5] = b;
array3D[2][1][5] = b;
array3D[3][1][5] = b;
array3D[4][1][5] = b;
array3D[5][1][5] = b;
array3D[6][1][5] = b;
//testBlock = b;
//run the face visibility and normal calculations
updateVisibility();
//dont draw the gui
guiDraw = false;
//scale and offset for map
mapScale = 1.0f;
offset.x = -100.0f;
offset.y = 100.0f;
scVal = 1.0f;
//used as light colour (when lights eventually work)
sceneWhiteLevel = ofColor(255,255,255);
#ifdef SYPHON
//start up syphon and set framerate
mainOutputSyphonServer.setName("Minecraft");
#endif
ofSetFrameRate(60);
//try and set up some lights
light light = {
{0,50,0,1}, //position (the final 1 means the light is positional)
{1,1,1,1}, //diffuse
{0,0,0,1}, //specular
{0,0,0,1} //ambient
};
light0 = light;
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
//glLightModeli(GL_LIGHT_MODEL_TWO_SIDE,0); //sets lighting to one-sided
glLightfv(GL_LIGHT0, GL_POSITION, light0.pos);
doLights();
//turn on backface culling
glEnable(GL_CULL_FACE);
}
void GIFImageDecoder::haveDecodedRow(unsigned frameIndex,
unsigned char* rowBuffer, // Pointer to single scanline temporary buffer
unsigned char* rowEnd,
unsigned rowNumber, // The row index
unsigned repeatCount, // How many times to repeat the row
bool writeTransparentPixels)
{
// Initialize the frame if necessary.
RGBA32Buffer& buffer = m_frameBufferCache[frameIndex];
if (buffer.status() == RGBA32Buffer::FrameEmpty)
initFrameBuffer(frameIndex);
// 7/13/09 CSidhall - Alloc fail handling
if(!buffer.bytes().data())
return;
// Do nothing for bogus data.
if (rowBuffer == 0 || static_cast<int>(m_reader->frameYOffset() + rowNumber) >= m_size.height())
return;
unsigned colorMapSize;
unsigned char* colorMap;
m_reader->getColorMap(colorMap, colorMapSize);
if (!colorMap)
return;
// The buffers that we draw are the entire image's width and height, so a final output frame is
// width * height RGBA32 values in size.
//
// A single GIF frame, however, can be smaller than the entire image, i.e., it can represent some sub-rectangle
// within the overall image. The rows we are decoding are within this
// sub-rectangle. This means that if the GIF frame's sub-rectangle is (x,y,w,h) then row 0 is really row
// y, and each row goes from x to x+w.
unsigned dstPos = (m_reader->frameYOffset() + rowNumber) * m_size.width() + m_reader->frameXOffset();
unsigned* dst = buffer.bytes().data() + dstPos;
unsigned* dstEnd = dst + m_size.width() - m_reader->frameXOffset();
unsigned* currDst = dst;
unsigned char* currentRowByte = rowBuffer;
while (currentRowByte != rowEnd && currDst < dstEnd) {
if ((!m_reader->isTransparent() || *currentRowByte != m_reader->transparentPixel()) && *currentRowByte < colorMapSize) {
unsigned colorIndex = *currentRowByte * 3;
unsigned red = colorMap[colorIndex];
unsigned green = colorMap[colorIndex + 1];
unsigned blue = colorMap[colorIndex + 2];
RGBA32Buffer::setRGBA(*currDst, red, green, blue, 255);
} else {
m_currentBufferSawAlpha = true;
// We may or may not need to write transparent pixels to the buffer.
// If we're compositing against a previous image, it's wrong, and if
// we're writing atop a cleared, fully transparent buffer, it's
// unnecessary; but if we're decoding an interlaced gif and
// displaying it "Haeberli"-style, we must write these for passes
// beyond the first, or the initial passes will "show through" the
// later ones.
if (writeTransparentPixels)
RGBA32Buffer::setRGBA(*currDst, 0, 0, 0, 0);
}
currDst++;
currentRowByte++;
}
if (repeatCount > 1) {
// Copy the row |repeatCount|-1 times.
unsigned num = currDst - dst;
unsigned size = num * sizeof(unsigned);
unsigned width = m_size.width();
unsigned* end = buffer.bytes().data() + width * m_size.height();
currDst = dst + width;
for (unsigned i = 1; i < repeatCount; i++) {
if (currDst + num > end) // Protect against a buffer overrun from a bogus repeatCount.
break;
memcpy(currDst, dst, size);
currDst += width;
}
}
// Our partial height is rowNumber + 1, e.g., row 2 is the 3rd row, so that's a height of 3.
// Adding in repeatCount - 1 to rowNumber + 1 works out to just be rowNumber + repeatCount.
buffer.ensureHeight(rowNumber + repeatCount);
}
