src/egl/main/eglimage.c

   1 #include <assert.h>
   2 #include <string.h>
   3
   4 #include "eglimage.h"
   5 #include "egllog.h"
   6
   7
   8 #ifdef EGL_KHR_image_base
   9
  10
  11 /**
  12  * Parse the list of image attributes and return the proper error code.
  13  */
  14 EGLint
  15 _eglParseImageAttribList(_EGLImageAttribs *attrs, _EGLDisplay *dpy,
  16                          const EGLint *attrib_list)
  17 {
  18    EGLint i, err = EGL_SUCCESS;
  19
  20    (void) dpy;
  21
  22    memset(attrs, 0, sizeof(attrs));
  23    attrs->ImagePreserved = EGL_FALSE;
  24    attrs->GLTextureLevel = 0;
  25    attrs->GLTextureZOffset = 0;
  26
  27    if (!attrib_list)
  28       return err;
  29
  30    for (i = 0; attrib_list[i] != EGL_NONE; i++) {
  31       EGLint attr = attrib_list[i++];
  32       EGLint val = attrib_list[i];
  33
  34       switch (attr) {
  35       /* EGL_KHR_image_base */
  36       case EGL_IMAGE_PRESERVED_KHR:
  37          attrs->ImagePreserved = val;
  38          break;
  39
  40       /* EGL_KHR_gl_image */
  41       case EGL_GL_TEXTURE_LEVEL_KHR:
  42          attrs->GLTextureLevel = val;
  43          break;
  44       case EGL_GL_TEXTURE_ZOFFSET_KHR:
  45          attrs->GLTextureZOffset = val;
  46          break;
  47
  48       /* EGL_MESA_drm_image */
  49       case EGL_WIDTH:
  50          attrs->Width = val;
  51          break;
  52       case EGL_HEIGHT:
  53          attrs->Height = val;
  54          break;
  55       case EGL_DRM_BUFFER_FORMAT_MESA:
  56          attrs->DRMBufferFormatMESA = val;
  57          break;
  58       case EGL_DRM_BUFFER_USE_MESA:
  59          attrs->DRMBufferUseMESA = val;
  60          break;
  61       case EGL_DRM_BUFFER_STRIDE_MESA:
  62          attrs->DRMBufferStrideMESA = val;
  63          break;
  64
  65       default:
  66          /* unknown attrs are ignored */
  67          break;
  68       }
  69
  70       if (err != EGL_SUCCESS) {
  71          _eglLog(_EGL_DEBUG, "bad image attribute 0x%04x", attr);
  72          break;
  73       }
  74    }
  75
  76    return err;
  77 }
  78
  79
  80 EGLBoolean
  81 _eglInitImage(_EGLImage *img, _EGLDisplay *dpy)
  82 {
  83    _eglInitResource(&img->Resource, sizeof(*img), dpy);
  84
  85    return EGL_TRUE;
  86 }
  87
  88
  89 #endif /* EGL_KHR_image_base */