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80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
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#ifndef __GDK_IMAGE_H__
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#define __GDK_IMAGE_H__
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#include <gdk/gdktypes.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* Types of images.
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* Normal: Normal X image type. These are slow as they involve passing
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* the entire image through the X connection each time a draw
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* request is required. On Win32, a bitmap.
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* Shared: Shared memory X image type. These are fast as the X server
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* and the program actually use the same piece of memory. They
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* should be used with care though as there is the possibility
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* for both the X server and the program to be reading/writing
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* the image simultaneously and producing undesired results.
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* On Win32, also a bitmap.
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* Shared Pixmap: Also a shared memory image, which also has a
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* pixmap using the same memory. Used by gdk_imlib with the
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* Win32 backend.
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*/
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typedef enum
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{
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GDK_IMAGE_NORMAL,
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GDK_IMAGE_SHARED,
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GDK_IMAGE_FASTEST,
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GDK_IMAGE_SHARED_PIXMAP
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} GdkImageType;
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struct _GdkImage
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{
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GdkImageType type;
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GdkVisual *visual; /* visual used to create the image */
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GdkByteOrder byte_order;
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guint16 width;
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guint16 height;
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guint16 depth;
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guint16 bpp; /* bytes per pixel */
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guint16 bpl; /* bytes per line */
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gpointer mem;
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};
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GdkImage* gdk_image_new_bitmap(GdkVisual *visual,
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gpointer data,
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gint width,
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gint height);
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GdkImage* gdk_image_new (GdkImageType type,
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GdkVisual *visual,
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gint width,
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gint height);
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#if GDK_WINDOWING == GDK_WINDOWING_WIN32
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GdkImage* gdk_image_bitmap_new(GdkImageType type,
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GdkVisual *visual,
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gint width,
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gint height);
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#endif
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GdkImage* gdk_image_get (GdkDrawable *drawable,
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gint x,
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gint y,
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gint width,
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gint height);
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void gdk_image_put_pixel (GdkImage *image,
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gint x,
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gint y,
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guint32 pixel);
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guint32 gdk_image_get_pixel (GdkImage *image,
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gint x,
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gint y);
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void gdk_image_destroy (GdkImage *image);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GDK_IMAGE_H__ */
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