src/gallium/state_trackers/vega/image.h

   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);
  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