src/egl/main/eglimage.c

   1 #include <assert.h>
   2 #include <string.h>
   3
   4 #include "eglimage.h"
   5 #include "eglcurrent.h"
   6 #include "egllog.h"
   7
   8
   9 #ifdef EGL_KHR_image_base
  10
  11
  12 /**
  13  * Parse the list of image attributes and return the proper error code.
  14  */
  15 static EGLint
  16 _eglParseImageAttribList(_EGLImage *img, const EGLint *attrib_list)
  17 {
  18    EGLint i, err = EGL_SUCCESS;
  19
  20    if (!attrib_list)
  21       return EGL_SUCCESS;
  22
  23    for (i = 0; attrib_list[i] != EGL_NONE; i++) {
  24       EGLint attr = attrib_list[i++];
  25       EGLint val = attrib_list[i];
  26
  27       switch (attr) {
  28       case EGL_IMAGE_PRESERVED_KHR:
  29          img->Preserved = val;
  30          break;
  31       default:
  32          err = EGL_BAD_ATTRIBUTE;
  33          break;
  34       }
  35
  36       if (err != EGL_SUCCESS) {
  37          _eglLog(_EGL_DEBUG, "bad image attribute 0x%04x", attr);
  38          break;
  39       }
  40    }
  41
  42    return err;
  43 }
  44
  45
  46 EGLBoolean
  47 _eglInitImage(_EGLImage *img, _EGLDisplay *dpy, const EGLint *attrib_list)
  48 {
  49    EGLint err;
  50
  51    memset(img, 0, sizeof(_EGLImage));
  52    img->Resource.Display = dpy;
  53
  54    img->Preserved = EGL_FALSE;
  55
  56    err = _eglParseImageAttribList(img, attrib_list);
  57    if (err != EGL_SUCCESS)
  58       return _eglError(err, "eglCreateImageKHR");
  59
  60    return EGL_TRUE;
  61 }
  62
  63
  64 _EGLImage *
  65 _eglCreateImageKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
  66                    EGLenum target, EGLClientBuffer buffer,
  67                    const EGLint *attr_list)
  68 {
  69    /* driver should override this function */
  70    return NULL;
  71 }
  72
  73
  74 EGLBoolean
  75 _eglDestroyImageKHR(_EGLDriver *drv, _EGLDisplay *dpy, _EGLImage *image)
  76 {
  77    /* driver should override this function */
  78    return EGL_FALSE;
  79 }
  80
  81
  82 #endif /* EGL_KHR_image_base */