void KisTextureTile::update(const KisTextureTileUpdateInfo &updateInfo) {
glBindTexture(GL_TEXTURE_2D, m_textureId);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
if (updateInfo.isEntireTileUpdated()) {
glTexImage2D(GL_TEXTURE_2D, 0,
m_texturesInfo->internalFormat,
m_texturesInfo->width,
m_texturesInfo->height, 0,
m_texturesInfo->format,
m_texturesInfo->type,
updateInfo.data());
}
else {
QPoint patchOffset = updateInfo.patchOffset();
QSize patchSize = updateInfo.patchSize();
glTexSubImage2D(GL_TEXTURE_2D, 0,
patchOffset.x(), patchOffset.y(),
patchSize.width(), patchSize.height(),
m_texturesInfo->format,
m_texturesInfo->type,
updateInfo.data());
}
/**
* 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.
*/
repeatStripes(updateInfo);
}
inline void KisTextureTile::repeatStripes(const KisTextureTileUpdateInfo &updateInfo) {
/**
* WARN: This function can repeat stripes of 1px width only!
*/
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);
if(imageRect.top() == patchRect.top()) {
glTexSubImage2D(GL_TEXTURE_2D, 0,
patchOffset.x(), patchOffset.y() - 1,
patchSize.width(), 1,
m_texturesInfo->format,
m_texturesInfo->type,
updateInfo.data());
}
if(imageRect.bottom() == patchRect.bottom()) {
int shift = patchSize.width() * (patchSize.height() - 1) *
pixelSize;
glTexSubImage2D(GL_TEXTURE_2D, 0,
patchOffset.x(), patchOffset.y() + patchSize.height(),
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;
}
glTexSubImage2D(GL_TEXTURE_2D, 0,
patchOffset.x() - 1, 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;
}
glTexSubImage2D(GL_TEXTURE_2D, 0,
patchOffset.x() + patchSize.width(), patchOffset.y(),
1, patchSize.height(),
m_texturesInfo->format,
m_texturesInfo->type,
columnBuffer.constData());
}
}
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();
}
