Smart pointer for OpenGL 2D texture memory with reference counting.
More...
#include <opencv2/core/opengl.hpp>
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| Texture2D () |
| The constructors. More...
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| Texture2D (int arows, int acols, Format aformat, unsigned int atexId, bool autoRelease=false) |
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| Texture2D (Size asize, Format aformat, unsigned int atexId, bool autoRelease=false) |
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| Texture2D (int arows, int acols, Format aformat, bool autoRelease=false) |
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| Texture2D (Size asize, Format aformat, bool autoRelease=false) |
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| Texture2D (InputArray arr, bool autoRelease=false) |
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void | bind () const |
| Binds texture to current active texture unit for GL_TEXTURE_2D target. More...
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int | cols () const |
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void | copyFrom (InputArray arr, bool autoRelease=false) |
| Copies from host/device memory to OpenGL texture. More...
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void | copyTo (OutputArray arr, int ddepth=CV_32F, bool autoRelease=false) const |
| Copies from OpenGL texture to host/device memory or another OpenGL texture object. More...
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void | create (int arows, int acols, Format aformat, bool autoRelease=false) |
| Allocates memory for ogl::Texture2D object. More...
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void | create (Size asize, Format aformat, bool autoRelease=false) |
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bool | empty () const |
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Format | format () const |
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void | release () |
| Decrements the reference counter and destroys the texture object if needed. More...
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int | rows () const |
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void | setAutoRelease (bool flag) |
| Sets auto release mode. More...
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Size | size () const |
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unsigned int | texId () const |
| get OpenGL opject id More...
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Smart pointer for OpenGL 2D texture memory with reference counting.
◆ Format
An Image Format describes the way that the images in Textures store their data.
Enumerator |
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NONE | |
DEPTH_COMPONENT | Depth.
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RGB | Red, Green, Blue.
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RGBA | Red, Green, Blue, Alpha.
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◆ Texture2D() [1/6]
cv::ogl::Texture2D::Texture2D |
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◆ Texture2D() [2/6]
cv::ogl::Texture2D::Texture2D |
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int |
arows, |
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int |
acols, |
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Format |
aformat, |
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unsigned int |
atexId, |
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bool |
autoRelease = false |
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) |
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This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
◆ Texture2D() [3/6]
cv::ogl::Texture2D::Texture2D |
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Size |
asize, |
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Format |
aformat, |
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unsigned int |
atexId, |
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bool |
autoRelease = false |
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) |
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This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
◆ Texture2D() [4/6]
cv::ogl::Texture2D::Texture2D |
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int |
arows, |
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int |
acols, |
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Format |
aformat, |
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bool |
autoRelease = false |
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) |
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This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
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arows | Number of rows. |
acols | Number of columns. |
aformat | Image format. See cv::ogl::Texture2D::Format . |
autoRelease | Auto release mode (if true, release will be called in object's destructor). |
◆ Texture2D() [5/6]
cv::ogl::Texture2D::Texture2D |
( |
Size |
asize, |
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Format |
aformat, |
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bool |
autoRelease = false |
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) |
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This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
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asize | 2D array size. |
aformat | Image format. See cv::ogl::Texture2D::Format . |
autoRelease | Auto release mode (if true, release will be called in object's destructor). |
◆ Texture2D() [6/6]
cv::ogl::Texture2D::Texture2D |
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InputArray |
arr, |
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bool |
autoRelease = false |
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) |
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explicit |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
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arr | Input array (host or device memory, it can be Mat , cuda::GpuMat or ogl::Buffer ). |
autoRelease | Auto release mode (if true, release will be called in object's destructor). |
◆ bind()
void cv::ogl::Texture2D::bind |
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const |
Binds texture to current active texture unit for GL_TEXTURE_2D target.
◆ cols()
int cv::ogl::Texture2D::cols |
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const |
◆ copyFrom()
void cv::ogl::Texture2D::copyFrom |
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InputArray |
arr, |
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bool |
autoRelease = false |
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) |
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Copies from host/device memory to OpenGL texture.
- Parameters
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arr | Input array (host or device memory, it can be Mat , cuda::GpuMat or ogl::Buffer ). |
autoRelease | Auto release mode (if true, release will be called in object's destructor). |
◆ copyTo()
void cv::ogl::Texture2D::copyTo |
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OutputArray |
arr, |
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int |
ddepth = CV_32F , |
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bool |
autoRelease = false |
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Copies from OpenGL texture to host/device memory or another OpenGL texture object.
- Parameters
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arr | Destination array (host or device memory, can be Mat , cuda::GpuMat , ogl::Buffer or ogl::Texture2D ). |
ddepth | Destination depth. |
autoRelease | Auto release mode for destination buffer (if arr is OpenGL buffer or texture). |
◆ create() [1/2]
void cv::ogl::Texture2D::create |
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int |
arows, |
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int |
acols, |
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Format |
aformat, |
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bool |
autoRelease = false |
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Allocates memory for ogl::Texture2D object.
- Parameters
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arows | Number of rows. |
acols | Number of columns. |
aformat | Image format. See cv::ogl::Texture2D::Format . |
autoRelease | Auto release mode (if true, release will be called in object's destructor). |
◆ create() [2/2]
void cv::ogl::Texture2D::create |
( |
Size |
asize, |
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Format |
aformat, |
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bool |
autoRelease = false |
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) |
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This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
- Parameters
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asize | 2D array size. |
aformat | Image format. See cv::ogl::Texture2D::Format . |
autoRelease | Auto release mode (if true, release will be called in object's destructor). |
◆ empty()
bool cv::ogl::Texture2D::empty |
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const |
◆ format()
Format cv::ogl::Texture2D::format |
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const |
◆ release()
void cv::ogl::Texture2D::release |
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Decrements the reference counter and destroys the texture object if needed.
The function will call setAutoRelease(true) .
◆ rows()
int cv::ogl::Texture2D::rows |
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const |
◆ setAutoRelease()
void cv::ogl::Texture2D::setAutoRelease |
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bool |
flag | ) |
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Sets auto release mode.
- Parameters
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flag | Auto release mode (if true, release will be called in object's destructor). |
The lifetime of the OpenGL object is tied to the lifetime of the context. If OpenGL context was bound to a window it could be released at any time (user can close a window). If object's destructor is called after destruction of the context it will cause an error. Thus ogl::Texture2D doesn't destroy OpenGL object in destructor by default (all OpenGL resources will be released with OpenGL context). This function can force ogl::Texture2D destructor to destroy OpenGL object.
◆ size()
Size cv::ogl::Texture2D::size |
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const |
◆ texId()
unsigned int cv::ogl::Texture2D::texId |
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const |
The documentation for this class was generated from the following file: