Mercurial > MadButterfly

annotate include/mb_img_ldr.h @ 528:d687d3395264 Android_Skia

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Clear variables and draw root coord. Although root coord is never in zeroing list, now, it still need to be redrawed after redrawing other zeroed coords.
author Thinker K.F. Li <thinker@branda.to>
date Wed, 23 Dec 2009 10:33:51 +0800
parents 43900cae1d49
children 586e50f82c1f
rev   line source
257
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
1 #ifndef __MB_IMG_LDR_H_
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
2 #define __MB_IMG_LDR_H_
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
3
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
4 typedef struct _mb_img_data mb_img_data_t;
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
5 typedef struct _mb_img_ldr mb_img_ldr_t;
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
6
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
7 typedef enum _mb_img_fmt {
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
8 MB_IFMT_DUMMY,
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
9 MB_IFMT_ARGB32,
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
10 MB_IFMT_RGB24,
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
11 MB_IFMT_A8,
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
12 MB_IFMT_A1,
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
13 MB_IFMT_RGB16_565
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
14 } mb_img_fmt_t;
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
15
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
16 /*! \brief Encapsulate image.
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
17 *
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
18 * The format and content of an image is encapsulated by imag_data_t.
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
19 * We hope someday, we can create an abstract backend layer that
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
20 * can deal with image data.
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
21 */
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
22 struct _mb_img_data {
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
23 /*! \brief Content of the image. */
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
24 void *content;
268
43900cae1d49 Support resizing for image.
Thinker K.F. Li <thinker@branda.to>
parents: 260
diff changeset
25 int w, h;
257
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
26 int stride; /*!< \brief Number of bytes a row */
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
27 mb_img_fmt_t fmt;
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
28 /*! \brief Release the image that was loaded by the loader. */
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
29 void (*free)(mb_img_data_t *img);
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
30 };
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
31 #define MB_IMG_DATA_FREE(img) (img)->free(img)
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
32
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
33 /*! \brief Image loader.
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
34 *
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
35 * An image loader take a ID and find out the corresponding
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
36 * image from filesystem or somewhere. Image ID is a hierachical
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
37 * structured path. It is relative to the root of image database.
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
38 * Users of a loader do not need to know where the database is.
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
39 * The location can be configured when a loader been instantiated.
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
40 * But, it is invisible when loading images by an image loader.
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
41 */
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
42 struct _mb_img_ldr {
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
43 /*! \brief Load a image with specified ID. */
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
44 mb_img_data_t *(*load)(mb_img_ldr_t *ldr, const char *img_id);
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
45 /*! \brief Free the loader. */
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
46 void (*free)(mb_img_ldr_t *ldr);
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
47 };
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
48 #define MB_IMG_LDR_FREE(ldr) (ldr)->free(ldr)
260
29acbd8a0dd0 Integrate sh_image with svg2code.py.
Thinker K.F. Li <thinker@branda.to>
parents: 257
diff changeset
49 #define MB_IMG_LDR_LOAD(ldr, img_id) (ldr)->load(ldr, img_id)
257
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
50
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
51 /*! \brief Create a simple image loader.
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
52 *
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
53 * \param img_repository is a repository where images are loaded from.
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
54 * \return NULL for error.
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
55 */
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
56 extern mb_img_ldr_t *simple_mb_img_ldr_new(const char *img_repository);
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
57
50d253d0fcba Simple image loader and image shape.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
58 #endif /* __MB_IMG_LDR_H_ */