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      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