Mercurial > MadButterfly

annotate src/img_ldr.c @ 489:23c7667b3ec0 Android_Skia

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Fix a potential bug when destroy a rdman. When a rdman is dirty, free shapes and coords works specially. Objects are append to a free list. They are not real freed until rdman being clean. redraw_man_destroy() free shapes and coords with free functions of them. If rdman is dirty when destroy it, objects would be leaked. The changeset make rdman clean before free shapes and coords to make objects being freed correctly.
author Thinker K.F. Li <thinker@branda.to>
date Sun, 22 Nov 2009 20:41:27 +0800
parents a417fd980228
children 8863d23cea4b 818e870e1eb5
rev   line source
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50d253d0fcba Simple image loader and image shape.
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1 #include <stdio.h>
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2 #include <string.h>
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3 #include "mb_graph_engine.h"
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4 #include "mb_tools.h"
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5 #include "mb_paint.h"
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6 #include "mb_img_ldr.h"
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7
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8 /*! \brief Simple image loader.
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9 *
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10 */
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11 struct _simple_mb_img_ldr {
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12 mb_img_ldr_t ldr;
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13 const char *repo; /*!< \brief The directory of repository. */
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14 };
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15 typedef struct _simple_mb_img_ldr simple_mb_img_ldr_t;
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16
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17 struct _simple_mb_img_data {
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18 mb_img_data_t img;
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19 mbe_surface_t *surf;
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20 };
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21 typedef struct _simple_mb_img_data simple_mb_img_data_t;
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22
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23 static void simple_mb_img_ldr_img_free(mb_img_data_t *img);
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24
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25 static
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26 mb_img_data_t *simple_mb_img_ldr_load(mb_img_ldr_t *ldr, const char *img_id) {
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27 simple_mb_img_ldr_t *sldr = (simple_mb_img_ldr_t *)ldr;
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28 simple_mb_img_data_t *img;
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29 mbe_surface_t *surf;
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30 char *fname;
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31 int sz;
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32
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33 sz = strlen(sldr->repo);
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34 sz += strlen(img_id);
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35 fname = (char *)malloc(sz + 2);
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36 strcpy(fname, sldr->repo);
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37 strcat(fname, img_id);
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38
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39 surf = mbe_image_surface_create_from_png(fname);
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40 if(surf == NULL)
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41 return NULL;
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42
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43 img = O_ALLOC(simple_mb_img_data_t);
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44 if(img == NULL) {
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45 mbe_surface_destroy(surf);
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46 return NULL;
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47 }
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48 img->img.content = mbe_image_surface_get_data(surf);
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49 img->img.w = mbe_image_surface_get_width(surf);
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50 img->img.h = mbe_image_surface_get_height(surf);
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51 img->img.stride = mbe_image_surface_get_stride(surf);
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52 img->img.fmt = mbe_image_surface_get_format(surf);
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53 img->img.free = simple_mb_img_ldr_img_free;
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54 img->surf = surf;
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55
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56 return (mb_img_data_t *)img;
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57 }
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58
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59 static
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60 void simple_mb_img_ldr_img_free(mb_img_data_t *img) {
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61 simple_mb_img_data_t *simg = (simple_mb_img_data_t *)img;
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62 mbe_surface_destroy((mbe_surface_t *)simg->surf);
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63 free(img);
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64 }
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65
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66 static
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67 void simple_mb_img_ldr_free(mb_img_ldr_t *ldr) {
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68 simple_mb_img_ldr_t *defldr = (simple_mb_img_ldr_t *)ldr;
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69
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70 free((void *)defldr->repo);
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71 }
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72
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73 mb_img_ldr_t *simple_mb_img_ldr_new(const char *img_repository) {
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74 simple_mb_img_ldr_t *ldr;
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75 int sz;
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76
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77 if(img_repository == NULL)
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78 return NULL;
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79
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80 ldr = O_ALLOC(simple_mb_img_ldr_t);
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81 if(ldr == NULL)
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82 return NULL;
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83
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84 /*
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85 * Copy and formalize path of image repository.
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86 */
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87 sz = strlen(img_repository);
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88 ldr->repo = (const char *)malloc(sz + 2);
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89 if(ldr->repo == NULL) {
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90 free(ldr);
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91 return NULL;
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92 }
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93 strcpy((char *)ldr->repo, img_repository);
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94 if(img_repository[sz - 1] != '/' && strlen(img_repository) != 0) {
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95 ((char *)ldr->repo)[sz] = '/';
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96 ((char *)ldr->repo)[sz + 1] = 0;
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97 }
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98
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99 ldr->ldr.load = simple_mb_img_ldr_load;
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100 ldr->ldr.free = simple_mb_img_ldr_free;
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101
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102 return (mb_img_ldr_t *)ldr;
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103 }