GLES_common/yagl_gles_image.c

   1 /*
   2  * YaGL
   3  *
   4  * Copyright (c) 2012 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact :
   7  * Stanislav Vorobiov <s.vorobiov@samsung.com>
   8  * Jinhyung Jo <jinhyung.jo@samsung.com>
   9  * YeongKyoon Lee <yeongkyoon.lee@samsung.com>
  10  *
  11  * Permission is hereby granted, free of charge, to any person obtaining a copy
  12  * of this software and associated documentation files (the "Software"), to deal
  13  * in the Software without restriction, including without limitation the rights
  14  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  15  * copies of the Software, and to permit persons to whom the Software is
  16  * furnished to do so, subject to the following conditions:
  17  *
  18  * The above copyright notice and this permission notice shall be included in
  19  * all copies or substantial portions of the Software.
  20  *
  21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  22  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  24  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  25  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  26  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  27  * THE SOFTWARE.
  28  *
  29  * Contributors:
  30  * - S-Core Co., Ltd
  31  *
  32  */
  33
  34 #include "GL/gl.h"
  35 #include "yagl_gles_image.h"
  36 #include "yagl_gles_texture.h"
  37 #include "yagl_client_context.h"
  38 #include "yagl_sharegroup.h"
  39 #include "yagl_malloc.h"
  40 #include "yagl_host_gles_calls.h"
  41
  42 static void yagl_gles_image_update(struct yagl_client_image *image,
  43                                    uint32_t width,
  44                                    uint32_t height,
  45                                    uint32_t bpp,
  46                                    const void *pixels)
  47 {
  48     struct yagl_gles_image *gles_image = (struct yagl_gles_image*)image;
  49
  50     yagl_host_glUpdateOffscreenImageYAGL(gles_image->tex_global_name,
  51                                          width,
  52                                          height,
  53                                          bpp,
  54                                          pixels,
  55                                          width * height * bpp);
  56 }
  57
  58 static void yagl_gles_image_destroy(struct yagl_ref *ref)
  59 {
  60     struct yagl_gles_image *image = (struct yagl_gles_image*)ref;
  61
  62     if (image->texture_obj) {
  63         yagl_gles_texture_release(image->texture_obj);
  64     } else {
  65         yagl_host_glDeleteObjects(&image->tex_global_name, 1);
  66     }
  67
  68     yagl_client_image_cleanup(&image->base);
  69
  70     yagl_free(image);
  71 }
  72
  73 struct yagl_gles_image *yagl_gles_image_create(yagl_object_name tex_global_name)
  74 {
  75     struct yagl_gles_image *image;
  76
  77     image = yagl_malloc0(sizeof(*image));
  78
  79     yagl_client_image_init(&image->base, &yagl_gles_image_destroy);
  80
  81     image->base.update = &yagl_gles_image_update;
  82
  83     image->tex_global_name = tex_global_name;
  84
  85     return image;
  86 }
  87
  88 struct yagl_gles_image *yagl_gles_image_wrap_tex(struct yagl_client_context *ctx,
  89                                                  yagl_object_name tex_local_name)
  90 {
  91     struct yagl_gles_texture *texture_obj;
  92     struct yagl_gles_image *image;
  93
  94     texture_obj = (struct yagl_gles_texture *)yagl_sharegroup_acquire_object(ctx->sg,
  95                                                                              YAGL_NS_TEXTURE,
  96                                                                              tex_local_name);
  97
  98     if (!texture_obj) {
  99         goto fail;
 100     }
 101
 102     image = yagl_malloc0(sizeof(*image));
 103
 104     yagl_client_image_init(&image->base, &yagl_gles_image_destroy);
 105
 106     image->base.update = &yagl_gles_image_update;
 107
 108     image->tex_global_name = texture_obj->global_name;
 109     image->texture_obj = texture_obj;
 110
 111     return image;
 112
 113 fail:
 114     yagl_gles_texture_release(texture_obj);
 115
 116     return NULL;
 117 }
 118
 119 void yagl_gles_image_acquire(struct yagl_gles_image *image)
 120 {
 121     if (image) {
 122         yagl_client_image_acquire(&image->base);
 123     }
 124 }
 125
 126 void yagl_gles_image_release(struct yagl_gles_image *image)
 127 {
 128     if (image) {
 129         yagl_client_image_release(&image->base);
 130     }
 131 }