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Pigment Render Reference Manual | ![]() |
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enum PgmRenderMediaInterpType; PgmRenderMediaIFace; PgmRenderError pgm_render_media_set_color (PgmRenderMediaIFace *media, guchar r, guchar g, guchar b, guchar a); PgmRenderError pgm_render_media_get_color (PgmRenderMediaIFace *media, guchar *r, guchar *g, guchar *b, guchar *a); PgmRenderError pgm_render_media_set_image (PgmRenderMediaIFace *media, PgmRenderMediaPixelFormat format, gint width, gint height, gint stride, gconstpointer data); PgmRenderError pgm_render_media_set_image_from_drawable (PgmRenderMediaIFace *media, PgmRenderDrawable *drawable); PgmRenderError pgm_render_media_del_image (PgmRenderMediaIFace *media); PgmRenderError pgm_render_media_set_interp_type (PgmRenderMediaIFace *media, PgmRenderMediaInterpType type); PgmRenderError pgm_render_media_get_interp_type (PgmRenderMediaIFace *media, PgmRenderMediaInterpType *type);
PgmRenderMediaIFace is an interface to add color and images drawing capabilities to an object.
typedef enum { PGM_RENDER_MEDIA_NEAREST, PGM_RENDER_MEDIA_BILINEAR } PgmRenderMediaInterpType;
The different image interpolation types.
PgmRenderError pgm_render_media_set_color (PgmRenderMediaIFace *media, guchar r, guchar g, guchar b, guchar a);
Sets the color of media to (r, g, b, a).
media : |
A PgmRenderMediaIFace object. |
r : |
The R color layer. |
g : |
The G color layer. |
b : |
The B color layer. |
a : |
The A color layer. |
Returns : | An error status. |
PgmRenderError pgm_render_media_get_color (PgmRenderMediaIFace *media, guchar *r, guchar *g, guchar *b, guchar *a);
Retrieves the color of media.
media : |
A PgmRenderMediaIFace object. |
r : |
The R color layer to fill. |
g : |
The G color layer to fill. |
b : |
The B color layer to fill. |
a : |
The A color layer to fill. |
Returns : | An error status. |
PgmRenderError pgm_render_media_set_image (PgmRenderMediaIFace *media, PgmRenderMediaPixelFormat format, gint width, gint height, gint stride, gconstpointer data);
Set the image of the media. The image is drawn over the color of the media.
media : |
A PgmRenderMediaIFace object. |
format : |
The format of pixels of the image. |
width : |
The width of the image. |
height : |
The height of the image. |
stride : |
The number of bytes between the start of rows in the image. Having this specified separate from width handles the padding at the end of rows. |
data : |
A pointer to the data supplied by the application. |
Returns : | An error status. |
PgmRenderError pgm_render_media_set_image_from_drawable (PgmRenderMediaIFace *media, PgmRenderDrawable *drawable);
Set the image of the media from another drawable object implementing the MediaIface interface. The goal is to avoid video memory duplication.
media : |
A PgmRenderMediaIFace object. |
drawable : |
The surface to copy the data from. |
Returns : | An error status. |
PgmRenderError pgm_render_media_del_image (PgmRenderMediaIFace *media);
Delete the image of the media
.
media : |
A PgmRenderMediaIFace object. |
Returns : | An error status. |
PgmRenderError pgm_render_media_set_interp_type (PgmRenderMediaIFace *media, PgmRenderMediaInterpType type);
Retrieves the filter type for the scaling interpolation of the media's image.
media : |
A PgmRenderMediaIFace object. |
type : |
The interpolation type to fill. |
Returns : | An error status. |
PgmRenderError pgm_render_media_get_interp_type (PgmRenderMediaIFace *media, PgmRenderMediaInterpType *type);
media : |
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type : |
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Returns : |