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      1 /**************************************************************************
      2  *
      3  * Copyright 2009-2010 Chia-I Wu <olvaffe (at) gmail.com>
      4  * Copyright 2010-2011 LunarG, Inc.
      5  * All Rights Reserved.
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a
      8  * copy of this software and associated documentation files (the
      9  * "Software"), to deal in the Software without restriction, including
     10  * without limitation the rights to use, copy, modify, merge, publish,
     11  * distribute, sub license, and/or sell copies of the Software, and to
     12  * permit persons to whom the Software is furnished to do so, subject to
     13  * the following conditions:
     14  *
     15  * The above copyright notice and this permission notice (including the
     16  * next paragraph) shall be included in all copies or substantial portions
     17  * of the Software.
     18  *
     19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     22  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     23  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     24  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     25  * DEALINGS IN THE SOFTWARE.
     26  *
     27  **************************************************************************/
     28 
     29 
     30 #include <assert.h>
     31 #include <string.h>
     32 
     33 #include "eglimage.h"
     34 #include "egllog.h"
     35 
     36 
     37 /**
     38  * Parse the list of image attributes and return the proper error code.
     39  */
     40 EGLint
     41 _eglParseImageAttribList(_EGLImageAttribs *attrs, _EGLDisplay *dpy,
     42                          const EGLint *attrib_list)
     43 {
     44    EGLint i, err = EGL_SUCCESS;
     45 
     46    (void) dpy;
     47 
     48    memset(attrs, 0, sizeof(*attrs));
     49    attrs->ImagePreserved = EGL_FALSE;
     50    attrs->GLTextureLevel = 0;
     51    attrs->GLTextureZOffset = 0;
     52 
     53    if (!attrib_list)
     54       return err;
     55 
     56    for (i = 0; attrib_list[i] != EGL_NONE; i++) {
     57       EGLint attr = attrib_list[i++];
     58       EGLint val = attrib_list[i];
     59 
     60       switch (attr) {
     61       /* EGL_KHR_image_base */
     62       case EGL_IMAGE_PRESERVED_KHR:
     63          attrs->ImagePreserved = val;
     64          break;
     65 
     66       /* EGL_KHR_gl_image */
     67       case EGL_GL_TEXTURE_LEVEL_KHR:
     68          attrs->GLTextureLevel = val;
     69          break;
     70       case EGL_GL_TEXTURE_ZOFFSET_KHR:
     71          attrs->GLTextureZOffset = val;
     72          break;
     73 
     74       /* EGL_MESA_drm_image */
     75       case EGL_WIDTH:
     76          attrs->Width = val;
     77          break;
     78       case EGL_HEIGHT:
     79          attrs->Height = val;
     80          break;
     81       case EGL_DRM_BUFFER_FORMAT_MESA:
     82          attrs->DRMBufferFormatMESA = val;
     83          break;
     84       case EGL_DRM_BUFFER_USE_MESA:
     85          attrs->DRMBufferUseMESA = val;
     86          break;
     87       case EGL_DRM_BUFFER_STRIDE_MESA:
     88          attrs->DRMBufferStrideMESA = val;
     89          break;
     90 
     91       /* EGL_WL_bind_wayland_display */
     92       case EGL_WAYLAND_PLANE_WL:
     93          attrs->PlaneWL = val;
     94          break;
     95 
     96       default:
     97          /* unknown attrs are ignored */
     98          break;
     99       }
    100 
    101       if (err != EGL_SUCCESS) {
    102          _eglLog(_EGL_DEBUG, "bad image attribute 0x%04x", attr);
    103          break;
    104       }
    105    }
    106 
    107    return err;
    108 }
    109 
    110 
    111 EGLBoolean
    112 _eglInitImage(_EGLImage *img, _EGLDisplay *dpy)
    113 {
    114    _eglInitResource(&img->Resource, sizeof(*img), dpy);
    115 
    116    return EGL_TRUE;
    117 }
    118