src/gallium/state_trackers/egl/egl_visual.c

   1
   2 #include "egl_tracker.h"
   3
   4 #include "egllog.h"
   5
   6 void
   7 drm_visual_modes_destroy(__GLcontextModes *modes)
   8 {
   9    _eglLog(_EGL_DEBUG, "%s", __FUNCTION__);
  10
  11    while (modes) {
  12       __GLcontextModes * const next = modes->next;
  13       free(modes);
  14       modes = next;
  15    }
  16 }
  17
  18 __GLcontextModes *
  19 drm_visual_modes_create(unsigned count, size_t minimum_size)
  20 {
  21         /* This code copied from libGLX, and modified */
  22         const size_t size = (minimum_size > sizeof(__GLcontextModes))
  23                 ? minimum_size : sizeof(__GLcontextModes);
  24         __GLcontextModes * head = NULL;
  25         __GLcontextModes ** next;
  26         unsigned   i;
  27
  28         _eglLog(_EGL_DEBUG, "%s %d %d", __FUNCTION__, count, minimum_size);
  29
  30         next = & head;
  31         for (i = 0 ; i < count ; i++) {
  32                 *next = (__GLcontextModes *) calloc(1, size);
  33                 if (*next == NULL) {
  34                         drm_visual_modes_destroy(head);
  35                         head = NULL;
  36                         break;
  37                 }
  38
  39                 (*next)->doubleBufferMode = 1;
  40                 (*next)->visualID = GLX_DONT_CARE;
  41                 (*next)->visualType = GLX_DONT_CARE;
  42                 (*next)->visualRating = GLX_NONE;
  43                 (*next)->transparentPixel = GLX_NONE;
  44                 (*next)->transparentRed = GLX_DONT_CARE;
  45                 (*next)->transparentGreen = GLX_DONT_CARE;
  46                 (*next)->transparentBlue = GLX_DONT_CARE;
  47                 (*next)->transparentAlpha = GLX_DONT_CARE;
  48                 (*next)->transparentIndex = GLX_DONT_CARE;
  49                 (*next)->xRenderable = GLX_DONT_CARE;
  50                 (*next)->fbconfigID = GLX_DONT_CARE;
  51                 (*next)->swapMethod = GLX_SWAP_UNDEFINED_OML;
  52                 (*next)->bindToTextureRgb = GLX_DONT_CARE;
  53                 (*next)->bindToTextureRgba = GLX_DONT_CARE;
  54                 (*next)->bindToMipmapTexture = GLX_DONT_CARE;
  55                 (*next)->bindToTextureTargets = 0;
  56                 (*next)->yInverted = GLX_DONT_CARE;
  57
  58                 next = & ((*next)->next);
  59         }
  60
  61         return head;
  62 }
  63
  64 __GLcontextModes *
  65 drm_visual_from_config(_EGLConfig *conf)
  66 {
  67         __GLcontextModes *visual;
  68         (void)conf;
  69
  70         visual = drm_visual_modes_create(1, sizeof(*visual));
  71         visual->redBits = 8;
  72         visual->greenBits = 8;
  73         visual->blueBits = 8;
  74         visual->alphaBits = 8;
  75
  76         visual->rgbBits = 32;
  77         visual->doubleBufferMode = 1;
  78
  79         visual->depthBits = 24;
  80         visual->haveDepthBuffer = visual->depthBits > 0;
  81         visual->stencilBits = 8;
  82         visual->haveStencilBuffer = visual->stencilBits > 0;
  83
  84         return visual;
  85 }