Vuo
0.4.2
|
An image residing in GPU memory (GL Texture Object).
Classes | |
struct | _VuoImage |
An image residing in GPU memory (GL Texture Object). More... | |
Typedefs | |
typedef struct _VuoImage * | VuoImage |
An image residing in GPU memory (GL Texture Object). | |
Functions | |
VuoImage | VuoImage_get (const char *imageURL) |
Retrieves the image at the specified imageURL , and creates a VuoImage from it. | |
void | VuoImage_free (void *texture) |
Decrements the retain count of the OpenGL Texture Object associated with the specified VuoImage , and frees the texture VuoImage struct. | |
VuoImage | VuoImage_make (unsigned int glTextureName, unsigned long int pixelsWide, unsigned long int pixelsHigh) |
Returns a new VuoImage structure containing the specified values. | |
VuoImage | VuoImage_valueFromString (const char *initializer) |
Parses initializer , a GL Texture represented as a JSON C string, and returns a VuoImage structure. | |
char * | VuoImage_stringFromValue (const VuoImage value) |
Returns a JSON string representing the specified texture, in the same format as typeInitWithValue . | |
char * | VuoImage_summaryFromValue (const VuoImage value) |
A brief summary of the contents of this texture. | |
struct _VuoImage |
An image residing in GPU memory (GL Texture Object).
The struct is typedef'd to a pointer so that VuoImages are reference-counted, enabling us to automatically delete the GL Texture Object when the last reference is released.
VuoImage VuoImage_get | ( | const char * | imageURL | ) |
Retrieves the image at the specified imageURL
, and creates a VuoImage
from it.
Automatically activates and deactivates a GL Context (if it makes it that far in the loading process).
VuoImage VuoImage_make | ( | unsigned int | glTextureName, |
unsigned long int | pixelsWide, | ||
unsigned long int | pixelsHigh | ||
) |
Returns a new VuoImage
structure containing the specified values.
The VuoImage takes ownership of glTextureName
, and will call glDeleteTextures()
on it when it's no longer needed.
char * VuoImage_summaryFromValue | ( | const VuoImage | value | ) |
A brief summary of the contents of this texture.
VuoImage VuoImage_valueFromString | ( | const char * | initializer | ) |
Parses initializer
, a GL Texture represented as a JSON C string, and returns a VuoImage
structure.
initializer
is valid, returns a pointer to the VuoImage. If not, returns NULL.initializer | A JSON string containing a GL Texture Name, and the texture's width and height in pixels. |