src/egl/main/eglglobals.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "eglglobals.h"
   4
   5 struct _egl_global _eglGlobal =
   6 {
   7    EGL_FALSE
   8 };
   9
  10 /**
  11  * Init the fields in the _eglGlobal struct
  12  * May be safely called more than once.
  13  */
  14 void
  15 _eglInitGlobals(void)
  16 {
  17    if (!_eglGlobal.Initialized) {
  18       _eglGlobal.Displays = _eglNewHashTable();
  19       _eglGlobal.Surfaces = _eglNewHashTable();
  20       _eglGlobal.FreeScreenHandle = 1;
  21       _eglGlobal.Initialized = EGL_TRUE;
  22
  23       _eglGlobal.ClientAPIsMask = 0x0;
  24
  25       /* XXX temporary */
  26       _eglGlobal.ThreadInfo = _eglNewThreadInfo();
  27    }
  28 }
  29
  30
  31 /**
  32  * Should call this via an atexit handler.
  33  */
  34 void
  35 _eglDestroyGlobals(void)
  36 {
  37    /* XXX TODO walk over table entries, deleting each */
  38    _eglDeleteHashTable(_eglGlobal.Displays);
  39    _eglDeleteHashTable(_eglGlobal.Surfaces);
  40 }
  41
  42
  43 /**
  44  * Allocate and init a new _EGLThreadInfo object.
  45  */
  46 _EGLThreadInfo *
  47 _eglNewThreadInfo(void)
  48 {
  49    _EGLThreadInfo *t = (_EGLThreadInfo *) calloc(1, sizeof(_EGLThreadInfo));
  50    if (t) {
  51       t->CurrentContext = EGL_NO_CONTEXT;
  52       t->LastError = EGL_SUCCESS;
  53       t->CurrentAPI = EGL_OPENGL_ES_API;  /* default, per EGL spec */
  54    }
  55    return t;
  56 }
  57
  58
  59 /**
  60  * Delete/free a _EGLThreadInfo object.
  61  */
  62 void
  63 _eglDeleteThreadData(_EGLThreadInfo *t)
  64 {
  65    free(t);
  66 }
  67
  68
  69
  70 /**
  71  * Return pointer to calling thread's _EGLThreadInfo object.
  72  * Create a new one if needed.
  73  * Should never return NULL.
  74  */
  75 _EGLThreadInfo *
  76 _eglGetCurrentThread(void)
  77 {
  78    _eglInitGlobals();
  79
  80    /* XXX temporary */
  81    return _eglGlobal.ThreadInfo;
  82 }
  83
  84
  85 /**
  86  * Record EGL error code.
  87  */
  88 void
  89 _eglError(EGLint errCode, const char *msg)
  90 {
  91    _EGLThreadInfo *t = _eglGetCurrentThread();
  92    const char *s;
  93
  94    if (t->LastError == EGL_SUCCESS) {
  95       t->LastError = errCode;
  96
  97       switch (errCode) {
  98       case EGL_BAD_ACCESS:
  99          s = "EGL_BAD_ACCESS";
 100          break;
 101       case EGL_BAD_ALLOC:
 102          s = "EGL_BAD_ALLOC";
 103          break;
 104       case EGL_BAD_ATTRIBUTE:
 105          s = "EGL_BAD_ATTRIBUTE";
 106          break;
 107       case EGL_BAD_CONFIG:
 108          s = "EGL_BAD_CONFIG";
 109          break;
 110       case EGL_BAD_CONTEXT:
 111          s = "EGL_BAD_CONTEXT";
 112          break;
 113       case EGL_BAD_CURRENT_SURFACE:
 114          s = "EGL_BAD_CURRENT_SURFACE";
 115          break;
 116       case EGL_BAD_DISPLAY:
 117          s = "EGL_BAD_DISPLAY";
 118          break;
 119       case EGL_BAD_MATCH:
 120          s = "EGL_BAD_MATCH";
 121          break;
 122       case EGL_BAD_NATIVE_PIXMAP:
 123          s = "EGL_BAD_NATIVE_PIXMAP";
 124          break;
 125       case EGL_BAD_NATIVE_WINDOW:
 126          s = "EGL_BAD_NATIVE_WINDOW";
 127          break;
 128       case EGL_BAD_PARAMETER:
 129          s = "EGL_BAD_PARAMETER";
 130          break;
 131       case EGL_BAD_SURFACE:
 132          s = "EGL_BAD_SURFACE";
 133          break;
 134       case EGL_BAD_SCREEN_MESA:
 135          s = "EGL_BAD_SCREEN_MESA";
 136          break;
 137       case EGL_BAD_MODE_MESA:
 138          s = "EGL_BAD_MODE_MESA";
 139          break;
 140       default:
 141          s = "other";
 142       }
 143       /* XXX temporary */
 144       fprintf(stderr, "EGL user error 0x%x (%s) in %s\n", errCode, s, msg);
 145    }
 146 }