KisTextureTile::~KisTextureTile()
{
#ifdef USE_PIXEL_BUFFERS
KisConfig cfg;
if (cfg.useOpenGLTextureBuffer()) {
delete m_glBuffer;
}
#endif
glDeleteTextures(1, &m_textureId);
}
void KisOpenGLCanvas2::slotConfigChanged()
{
KisConfig cfg;
d->checkSizeScale = KisOpenGLImageTextures::BACKGROUND_TEXTURE_CHECK_SIZE / static_cast<GLfloat>(cfg.checkSize());
d->scrollCheckers = cfg.scrollCheckers();
d->openGLImageTextures->generateCheckerTexture(createCheckersImage(cfg.checkSize()));
d->openGLImageTextures->updateConfig(cfg.useOpenGLTextureBuffer(), cfg.numMipmapLevels());
d->filterMode = (KisOpenGL::FilterMode) cfg.openGLFilteringMode();
notifyConfigChanged();
}
KisTextureTile::KisTextureTile(QRect imageRect, const KisGLTexturesInfo *texturesInfo,
const QByteArray &fillData, FilterMode filter)
: m_textureId(0)
#ifdef USE_PIXEL_BUFFERS
, m_glBuffer(0)
#endif
, m_tileRectInImagePixels(imageRect)
, m_filter(filter)
, m_texturesInfo(texturesInfo)
, m_needsMipmapRegeneration(false)
{
const GLvoid *fd = fillData.constData();
m_textureRectInImagePixels =
stretchRect(m_tileRectInImagePixels, texturesInfo->border);
m_tileRectInTexturePixels = relativeRect(m_textureRectInImagePixels,
m_tileRectInImagePixels,
m_texturesInfo);
glGenTextures(1, &m_textureId);
glBindTexture(GL_TEXTURE_2D, m_textureId);
setTextureParameters();
#ifdef USE_PIXEL_BUFFERS
createTextureBuffer(fillData);
// we set fill data to 0 so the next glTexImage2D call uses our buffer
fd = 0;
#endif
glTexImage2D(GL_TEXTURE_2D, 0,
m_texturesInfo->internalFormat,
m_texturesInfo->width,
m_texturesInfo->height, 0,
m_texturesInfo->format,
m_texturesInfo->type, fd);
#ifdef USE_PIXEL_BUFFERS
KisConfig cfg;
if (cfg.useOpenGLTextureBuffer()) {
m_glBuffer->release();
}
#endif
setNeedsMipmapRegeneration();
}
void KisTextureTile::createTextureBuffer(const QByteArray &fillData)
{
KisConfig cfg;
if (cfg.useOpenGLTextureBuffer()) {
m_glBuffer = new QGLBuffer(QGLBuffer::PixelUnpackBuffer);
m_glBuffer->setUsagePattern(QGLBuffer::DynamicDraw);
m_glBuffer->create();
m_glBuffer->bind();
m_glBuffer->allocate(fillData.size());
void *vid = m_glBuffer->map(QGLBuffer::WriteOnly);
memcpy(vid, fillData.constData(), fillData.size());
m_glBuffer->unmap();
}
else {
m_glBuffer = 0;
}
}
void KisTextureTile::update(const KisTextureTileUpdateInfo &updateInfo)
{
glBindTexture(GL_TEXTURE_2D, m_textureId);
setTextureParameters();
const GLvoid *fd = updateInfo.data();
#ifdef USE_PIXEL_BUFFERS
KisConfig cfg;
if (!m_glBuffer) {
QByteArray ba;
ba.fromRawData((const char*)updateInfo.data(), updateInfo.patchPixelsLength());
createTextureBuffer(ba);
}
#endif
if (updateInfo.isEntireTileUpdated()) {
#ifdef USE_PIXEL_BUFFERS
if (cfg.useOpenGLTextureBuffer()) {
m_glBuffer->bind();
m_glBuffer->allocate(updateInfo.patchPixelsLength());
void *vid = m_glBuffer->map(QGLBuffer::WriteOnly);
memcpy(vid, fd, updateInfo.patchPixelsLength());
m_glBuffer->unmap();
// we set fill data to 0 so the next glTexImage2D call uses our buffer
fd = 0;
}
#endif
glTexImage2D(GL_TEXTURE_2D, 0,
m_texturesInfo->internalFormat,
m_texturesInfo->width,
m_texturesInfo->height, 0,
m_texturesInfo->format,
m_texturesInfo->type,
fd);
#ifdef USE_PIXEL_BUFFERS
if (cfg.useOpenGLTextureBuffer()) {
m_glBuffer->release();
}
#endif
}
else {
QPoint patchOffset = updateInfo.patchOffset();
QSize patchSize = updateInfo.patchSize();
#ifdef USE_PIXEL_BUFFERS
if (cfg.useOpenGLTextureBuffer()) {
m_glBuffer->bind();
quint32 size = patchSize.width() * patchSize.height() * updateInfo.pixelSize();
m_glBuffer->allocate(size);
void *vid = m_glBuffer->map(QGLBuffer::WriteOnly);
memcpy(vid, fd, size);
m_glBuffer->unmap();
// we set fill data to 0 so the next glTexImage2D call uses our buffer
fd = 0;
}
#endif
glTexSubImage2D(GL_TEXTURE_2D, 0,
patchOffset.x(), patchOffset.y(),
patchSize.width(), patchSize.height(),
m_texturesInfo->format,
m_texturesInfo->type,
fd);
#ifdef USE_PIXEL_BUFFERS
if (cfg.useOpenGLTextureBuffer()) {
m_glBuffer->release();
}
#endif
}
/**
* On the boundaries of KisImage, there is a border-effect as well.
* So we just repeat the bounding pixels of the image to make
* bilinear interpolator happy.
*/
/**
* WARN: The width of the stripes will be equal to the broder
* width of the tiles.
*/
const int pixelSize = updateInfo.pixelSize();
const QRect imageRect = updateInfo.imageRect();
const QPoint patchOffset = updateInfo.patchOffset();
const QSize patchSize = updateInfo.patchSize();
const QRect patchRect = QRect(m_textureRectInImagePixels.topLeft() +
patchOffset,
patchSize);
const QSize tileSize = updateInfo.tileRect().size();
if(imageRect.top() == patchRect.top()) {
int start = 0;
int end = patchOffset.y() - 1;
for (int i = start; i <= end; i++) {
glTexSubImage2D(GL_TEXTURE_2D, 0,
patchOffset.x(), i,
patchSize.width(), 1,
m_texturesInfo->format,
m_texturesInfo->type,
updateInfo.data());
}
}
if (imageRect.bottom() == patchRect.bottom()) {
int shift = patchSize.width() * (patchSize.height() - 1) *
pixelSize;
int start = patchOffset.y() + patchSize.height();
int end = tileSize.height() - 1;
for (int i = start; i < end; i++) {
glTexSubImage2D(GL_TEXTURE_2D, 0,
patchOffset.x(), i,
patchSize.width(), 1,
m_texturesInfo->format,
m_texturesInfo->type,
updateInfo.data() + shift);
}
}
if (imageRect.left() == patchRect.left()) {
QByteArray columnBuffer(patchSize.height() * pixelSize, 0);
quint8 *srcPtr = updateInfo.data();
quint8 *dstPtr = (quint8*) columnBuffer.data();
for(int i = 0; i < patchSize.height(); i++) {
memcpy(dstPtr, srcPtr, pixelSize);
srcPtr += patchSize.width() * pixelSize;
dstPtr += pixelSize;
}
int start = 0;
int end = patchOffset.x() - 1;
for (int i = start; i <= end; i++) {
glTexSubImage2D(GL_TEXTURE_2D, 0,
i, patchOffset.y(),
1, patchSize.height(),
m_texturesInfo->format,
m_texturesInfo->type,
columnBuffer.constData());
}
}
if (imageRect.right() == patchRect.right()) {
QByteArray columnBuffer(patchSize.height() * pixelSize, 0);
quint8 *srcPtr = updateInfo.data() + (patchSize.width() - 1) * pixelSize;
quint8 *dstPtr = (quint8*) columnBuffer.data();
for(int i = 0; i < patchSize.height(); i++) {
memcpy(dstPtr, srcPtr, pixelSize);
srcPtr += patchSize.width() * pixelSize;
dstPtr += pixelSize;
}
int start = patchOffset.x() + patchSize.width();
int end = tileSize.width() - 1;
for (int i = start; i <= end; i++) {
glTexSubImage2D(GL_TEXTURE_2D, 0,
i, patchOffset.y(),
1, patchSize.height(),
m_texturesInfo->format,
m_texturesInfo->type,
columnBuffer.constData());
}
}
setNeedsMipmapRegeneration();
}
