void
dump_cvpixel_buffer (CVPixelBufferRef pixbuf)
{
gsize left, right, top, bottom;
GST_LOG ("buffer %p", pixbuf);
if (CVPixelBufferLockBaseAddress (pixbuf, 0)) {
GST_WARNING ("Couldn't lock base adress on pixel buffer !");
return;
}
GST_LOG ("Width:%" G_GSIZE_FORMAT " , Height:%" G_GSIZE_FORMAT,
CVPixelBufferGetWidth (pixbuf), CVPixelBufferGetHeight (pixbuf));
GST_LOG ("Format:%" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (CVPixelBufferGetPixelFormatType (pixbuf)));
GST_LOG ("base address:%p", CVPixelBufferGetBaseAddress (pixbuf));
GST_LOG ("Bytes per row:%" G_GSIZE_FORMAT,
CVPixelBufferGetBytesPerRow (pixbuf));
GST_LOG ("Data Size:%" G_GSIZE_FORMAT, CVPixelBufferGetDataSize (pixbuf));
GST_LOG ("Plane count:%" G_GSIZE_FORMAT, CVPixelBufferGetPlaneCount (pixbuf));
CVPixelBufferGetExtendedPixels (pixbuf, &left, &right, &top, &bottom);
GST_LOG ("Extended pixels. left/right/top/bottom : %" G_GSIZE_FORMAT
"/%" G_GSIZE_FORMAT "/%" G_GSIZE_FORMAT "/%" G_GSIZE_FORMAT,
left, right, top, bottom);
CVPixelBufferUnlockBaseAddress (pixbuf, 0);
}
void jit_gl_hap_draw_frame(void *jitob, CVImageBufferRef frame)
{
t_jit_gl_hap * x = (t_jit_gl_hap*)jitob;
CFTypeID imageType = CFGetTypeID(frame);
OSType newPixelFormat;
if(x->validframe)
return;
if (imageType == CVPixelBufferGetTypeID()) {
// Update the texture
CVBufferRetain(frame);
if(x->buffer) {
CVPixelBufferUnlockBaseAddress(x->buffer, kCVPixelBufferLock_ReadOnly);
CVBufferRelease(x->buffer);
}
x->buffer = frame;
CVPixelBufferLockBaseAddress(x->buffer, kCVPixelBufferLock_ReadOnly);
x->dim[0] = CVPixelBufferGetWidth(x->buffer);
x->dim[1] = CVPixelBufferGetHeight(x->buffer);
newPixelFormat = CVPixelBufferGetPixelFormatType(x->buffer);
if(x->buffer && x->hap_format==JIT_GL_HAP_PF_HAP) {
size_t extraRight, extraBottom;
unsigned int bitsPerPixel;
size_t bytesPerRow;
size_t actualBufferSize;
CVPixelBufferGetExtendedPixels(x->buffer, NULL, &extraRight, NULL, &extraBottom);
x->roundedWidth = x->dim[0] + extraRight;
x->roundedHeight = x->dim[1] + extraBottom;
if (x->roundedWidth % 4 != 0 || x->roundedHeight % 4 != 0) {
x->validframe = 0;
return;
}
switch (newPixelFormat) {
case kHapPixelFormatTypeRGB_DXT1:
x->newInternalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
bitsPerPixel = 4;
break;
case kHapPixelFormatTypeRGBA_DXT5:
case kHapPixelFormatTypeYCoCg_DXT5:
x->newInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
bitsPerPixel = 8;
break;
default:
// we don't support non-DXT pixel buffers
x->validframe = 0;
return;
break;
}
x->useshader = (newPixelFormat == kHapPixelFormatTypeYCoCg_DXT5);
bytesPerRow = (x->roundedWidth * bitsPerPixel) / 8;
x->newDataLength = bytesPerRow * x->roundedHeight; // usually not the full length of the buffer
actualBufferSize = CVPixelBufferGetDataSize(x->buffer);
// Check the buffer is as large as we expect it to be
if (x->newDataLength > actualBufferSize) {
x->validframe = 0;
return;
}
// If we got this far we're good to go
x->validframe = 1;
x->target = GL_TEXTURE_2D;
if(!x->flipped) {
jit_attr_setlong(x->texoutput, gensym("flip"), 1);
x->flipped = 1;
}
//x->drawhap = 1;
}
else if(x->buffer) {// && x->hap_format==JIT_GL_HAP_PF_HAP) {
if( newPixelFormat == k24RGBPixelFormat )
x->newInternalFormat = GL_RGB8;
else if( newPixelFormat == k32BGRAPixelFormat )
x->newInternalFormat = GL_RGBA8;
else {
x->validframe = 0;
return;
}
x->roundedWidth = x->dim[0];
x->roundedHeight = x->dim[1];
x->newDataLength = CVPixelBufferGetDataSize(x->buffer);
x->rowLength = CVPixelBufferGetBytesPerRow( x->buffer ) / (x->hap_format==JIT_GL_HAP_PF_RGB ? 3 : 4);
x->target = GL_TEXTURE_RECTANGLE_EXT;
if(!x->flipped) {
jit_attr_setlong(x->texoutput, gensym("flip"), 1);
x->flipped = 1;
}
x->validframe = 1;
}
}
else {
#ifdef MAC_VERSION
CGSize imageSize = CVImageBufferGetEncodedSize(frame);
bool flipped = CVOpenGLTextureIsFlipped(frame);
x->texture = CVOpenGLTextureGetName(frame);
x->useshader = 0;
x->dim[0] = (t_atom_long)imageSize.width;
x->dim[1] = (t_atom_long)imageSize.height;
x->validframe = 1;
x->target = GL_TEXTURE_RECTANGLE_ARB;
if(x->flipped!=flipped) {
jit_attr_setlong(x->texoutput, gensym("flip"), flipped);
x->flipped = flipped;
}
#endif
}
}
void QTPixelBuffer::getExtendedPixels(size_t* left, size_t* right, size_t* top, size_t* bottom) const
{
return CVPixelBufferGetExtendedPixels(m_pixelBuffer, left, right, top, bottom);
}
