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