Inherited by DD::Image::OutputContext.
Public Types | |
enum | ProxySetting { PROXY_OFF, PROXY_NEVER, PROXY_SCALE_DOWN, PROXY_NEAREST, PROXY_ALWAYS } |
Public Member Functions | |
ProxySetting | proxy () const |
void | setProxy (ProxySetting v) |
float | scale_x () const |
float | scale_y () const |
float | translate_x () const |
float | translate_y () const |
void | setProxyscale (float scale) |
void | setProxyscale (float sx, float sy) |
void | setProxyscale (const Format &fullsize, const Format &proxysize) |
void | setProxyscale (const Matrix4 &) |
void | scale (float scale) |
void | scale (float sx, float sy) |
void | translate (float x, float y) |
bool | isIdentity () const |
void | to_proxy (Matrix4 &) const |
void | to_proxy_wh (double &w, double &h) const |
void | to_proxy_wh (float &w, float &h) const |
double | to_proxy_w (double w) const |
double | to_proxy_h (double w) const |
void | to_proxy_xy (double &x, double &y) const |
void | to_proxy_xy (float &x, float &y) const |
double | to_proxy_x (double w) const |
double | to_proxy_y (double w) const |
double | from_proxy_x (double x) const |
double | from_proxy_y (double y) const |
void | to_proxy_box (DD::Image::Box &box) const |
void | to_proxy_area (double &w, double &h) const |
double | to_proxy_area (double area) const |
void | to_proxy (const Format &from, Format &to) const |
const Format * | to_proxy_rel (const Format &from, Format &to, const ProxyContext &) const |
double | to_proxy_pixel_aspect (double pa) const |
void | from_proxy (Matrix4 &) const |
void | from_proxy_xy (double &x, double &y) const |
void | from_proxy_wh (double &w, double &h) const |
void | from_proxy_xy (float &x, float &y) const |
void | from_proxy_wh (float &w, float &h) const |
double | from_proxy_area (double area) const |
double | from_proxy_pixel_aspect (double pa) const |
void | appendProxy (Hash &hash) const |
Append the values affecting proxy scaling to the hash (i.e. not frame or view) | |
Protected Member Functions | |
ProxyContext () | |
bool | isEqualTo (const ProxyContext &other) const |
bool | isLessThan (const ProxyContext &other) const |
Friends | |
std::ostream & | operator<< (std::ostream &o, const ProxyContext &) |
See also class DD::Image::OutputContext
This is the part out OutputContext which deals with proxy and should NOT be instantiated.
It is intentionaly non-virtual in order to not loose any performance and does NOT contain any allocations that would otherwise need cleaning up.
It contains a ProxySetting to denote how to Scale and a representation of a 3x2 matrix with b,c missing, to denote Scale and Translation properties.
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inlineprotected |
! Protected C'tor Should only be constructed by children such as OutputContext
Set the scaling to the conversion from full to proxy.
References DD::Image::Format::pixel_aspect(), DD::Image::Box::t(), DD::Image::Box::w(), DD::Image::Box::x(), and DD::Image::Box::y().
void ProxyContext::setProxyscale | ( | const Matrix4 & | m | ) |
Set the scaling to the transform in the matrix (which had better only have scale and translations).
void ProxyContext::to_proxy | ( | Matrix4 & | m | ) | const |
Multiply the matrix by the transformation from full-size space to proxy space. If the matrix was the identity, it will now be a transform from full size to proxy.
References DD::Image::Matrix4::scale(), and DD::Image::Matrix4::translate().
Replace the contents of to with the scaled version of from. Integer values are rounded to the nearest match. The name of the format is set to null.
References fast_rint(), DD::Image::Format::height(), DD::Image::Format::name(), DD::Image::Format::pixel_aspect(), DD::Image::Box::r(), DD::Image::Box::t(), DD::Image::Format::width(), DD::Image::Box::x(), and DD::Image::Box::y().
const Format * ProxyContext::to_proxy_rel | ( | const Format & | from, |
Format & | to, | ||
const ProxyContext & | rel | ||
) | const |
from is the result of rel.to_proxy. Undoes the rel.to_proxy, and then applies this.to_proxy to the result. If this results in from then from is returned. Otherwise the result is written over to and that is returned. This is a weird action used by Nuke.
References fast_rint(), DD::Image::Format::height(), DD::Image::Format::name(), DD::Image::Format::pixel_aspect(), DD::Image::Box::r(), DD::Image::Box::t(), DD::Image::Format::width(), DD::Image::Box::x(), and DD::Image::Box::y().
void ProxyContext::from_proxy | ( | Matrix4 & | m | ) | const |
Multiply the matrix by the transformation from proxy space to full-size space. If the matrix was the identity, it will now be a transform from proxy to full-size;
References DD::Image::Matrix4::scale(), and DD::Image::Matrix4::translate().
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