1 /**************************************************************************
2  *
3  * Copyright 2009 VMware, Inc.  All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sub license, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial portions
15  * of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  *
25  **************************************************************************/
26 
27 #ifndef IMAGES_H
28 #define IMAGES_H
29 
30 #include "vg_context.h"
31 #include "pipe/p_state.h"
32 
33 struct pipe_resource;
34 struct array;
35 struct vg_context;
36 struct pipe_surface;
37 
38 struct vg_image {
39    struct vg_object base;
40    VGImageFormat format;
41    VGint x, y;
42    VGint width, height;
43 
44    struct vg_image *parent;
45 
46    struct pipe_sampler_view *sampler_view;
47    struct pipe_sampler_state sampler;
48 
49    struct array *children_array;
50 };
51 
52 struct vg_image *image_create(VGImageFormat format,
53                               VGint width, VGint height);
54 void image_destroy(struct vg_image *img);
55 
56 void image_clear(struct vg_image *img,
57                  VGint x, VGint y, VGint width, VGint height);
58 
59 void image_sub_data(struct vg_image *image,
60                     const void * data,
61                     VGint dataStride,
62                     VGImageFormat dataFormat,
63                     VGint x, VGint y,
64                     VGint width, VGint height);
65 
66 void image_get_sub_data(struct vg_image * image,
67                         void * data,
68                         VGint dataStride,
69                         VGImageFormat dataFormat,
70                         VGint x, VGint y,
71                         VGint width, VGint height);
72 
73 struct vg_image *image_child_image(struct vg_image *parent,
74                                    VGint x, VGint y,
75                                    VGint width, VGint height);
76 
77 void image_copy(struct vg_image *dst, VGint dx, VGint dy,
78                 struct vg_image *src, VGint sx, VGint sy,
79                 VGint width, VGint height,
80                 VGboolean dither);
81 
82 void image_draw(struct vg_image *img, struct matrix *matrix);
83 
84 void image_set_pixels(VGint dx, VGint dy,
85                       struct vg_image *src, VGint sx, VGint sy,
86                       VGint width, VGint height);
87 void image_get_pixels(struct vg_image *dst, VGint dx, VGint dy,
88                       VGint sx, VGint sy,
89                       VGint width, VGint height);
90 
91 VGint image_bind_samplers(struct vg_image *dst, struct pipe_sampler_state **samplers,
92                           struct pipe_sampler_view **sampler_views);
93 
94 VGboolean vg_image_overlaps(struct vg_image *dst,
95                             struct vg_image *src);
96 
97 VGint image_sampler_filter(struct vg_context *ctx);
98 
99 void vg_copy_surface(struct vg_context *ctx,
100                      struct pipe_surface *dst, VGint dx, VGint dy,
101                      struct pipe_surface *src, VGint sx, VGint sy,
102                      VGint width, VGint height);
103 
104 #endif
105