forked from enlightenment/efl
Be a lot more pedantic and add some more safety checks about xrandr
return values (ie: if xrandr returns 0 crtcs, then we don't need to allocate anything, etc, etc, etc). Signed-off-by: Christopher Michael <cp.michael@samsung.com> SVN revision: 83624
This commit is contained in:
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0c76117e1e
commit
562b278b52
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@ -349,6 +349,8 @@ ecore_x_randr_screen_primary_output_refresh_rates_get(Ecore_X_Window root, int s
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{
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Ecore_X_Randr_Refresh_Rate *ret = NULL;
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if (n == 0) return NULL;
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/* try to allocate space for the return */
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if ((ret = malloc(n * sizeof(Ecore_X_Randr_Refresh_Rate))))
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{
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@ -510,6 +512,8 @@ ecore_x_randr_screen_reset(Ecore_X_Window root)
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/* try to get the screen resources from Xrandr */
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if ((res = _ecore_x_randr_screen_resources_get(_ecore_x_disp, root)))
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{
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if (res->ncrtc > 0)
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{
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Ecore_X_Randr_Crtc crtcs[res->ncrtc];
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int i = 0, nenabled = 0;
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@ -562,6 +566,7 @@ ecore_x_randr_screen_reset(Ecore_X_Window root)
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ecore_x_randr_screen_current_size_set(root, nw, nh, -1, -1);
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}
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}
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#endif
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}
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@ -766,6 +771,14 @@ ecore_x_randr_mode_info_get(Ecore_X_Window root, Ecore_X_Randr_Mode mode)
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Ecore_X_Randr_Mode_Info *ret = NULL;
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int i = 0;
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if (res->nmode == 0)
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{
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/* free the resources */
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XRRFreeScreenResources(res);
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return NULL;
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}
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/* loop the mode informations and find the one we want */
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for (i = 0; i < res->nmode; i++)
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{
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@ -853,6 +866,14 @@ ecore_x_randr_crtcs_get(Ecore_X_Window root, int *num)
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{
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Ecore_X_Randr_Crtc *ret = NULL;
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if (res->ncrtc == 0)
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{
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/* free the resources */
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XRRFreeScreenResources(res);
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return NULL;
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}
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/* try to allocate space for our return variable */
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if ((ret = malloc(res->ncrtc * sizeof(Ecore_X_Randr_Crtc))))
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{
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@ -888,6 +909,14 @@ ecore_x_randr_outputs_get(Ecore_X_Window root, int *num)
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{
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Ecore_X_Randr_Output *ret = NULL;
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if (res->noutput == 0)
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{
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/* free the resources */
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XRRFreeScreenResources(res);
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return NULL;
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}
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/* try to allocate space for our return variable */
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if ((ret = malloc(res->noutput * sizeof(Ecore_X_Randr_Output))))
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{
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@ -1195,6 +1224,17 @@ ecore_x_randr_crtc_possible_outputs_get(Ecore_X_Window root, Ecore_X_Randr_Crtc
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/* try to get crtc info */
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if ((info = XRRGetCrtcInfo(_ecore_x_disp, res, crtc)))
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{
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if (info->npossible == 0)
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{
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/* free the crtc info */
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XRRFreeCrtcInfo(info);
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/* free the resources */
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XRRFreeScreenResources(res);
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return NULL;
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}
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/* try to allocate our return struct */
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if ((ret = malloc(info->npossible * sizeof(Ecore_X_Randr_Output))))
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{
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@ -1803,6 +1843,11 @@ ecore_x_randr_output_modes_get(Ecore_X_Window root, Ecore_X_Randr_Output output,
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/* try to get output info */
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if ((info = XRRGetOutputInfo(_ecore_x_disp, res, output)))
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{
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if (num) *num = info->nmode;
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if (npreferred) *npreferred = info->npreferred;
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if (info->nmode > 0)
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{
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if ((modes = malloc(info->nmode * sizeof(Ecore_X_Randr_Mode))))
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{
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@ -1810,9 +1855,7 @@ ecore_x_randr_output_modes_get(Ecore_X_Window root, Ecore_X_Randr_Output output,
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for (i = 0; i < info->nmode; i++)
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modes[i] = info->modes[i];
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if (num) *num = info->nmode;
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if (npreferred) *npreferred = info->npreferred;
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}
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}
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/* free the output info */
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@ -1851,6 +1894,10 @@ ecore_x_randr_output_clones_get(Ecore_X_Window root, Ecore_X_Randr_Output output
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/* try to get output info */
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if ((info = XRRGetOutputInfo(_ecore_x_disp, res, output)))
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{
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if (num) *num = info->nclone;
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if (info->nclone > 0)
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{
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/* try to allocate space for output return */
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if ((outputs = malloc(info->nclone * sizeof(Ecore_X_Randr_Output))))
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@ -1859,8 +1906,7 @@ ecore_x_randr_output_clones_get(Ecore_X_Window root, Ecore_X_Randr_Output output
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for (i = 0; i < info->nclone; i++)
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outputs[i] = info->clones[i];
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if (num) *num = info->nclone;
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}
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}
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/* free the output info */
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@ -1892,6 +1938,10 @@ ecore_x_randr_output_possible_crtcs_get(Ecore_X_Window root, Ecore_X_Randr_Outpu
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/* try to get output info */
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if ((info = XRRGetOutputInfo(_ecore_x_disp, res, output)))
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{
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if (num) *num = info->ncrtc;
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if (info->ncrtc > 0)
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{
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/* try to allocate space for the return crtcs */
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if ((crtcs = malloc(info->ncrtc * sizeof(Ecore_X_Randr_Crtc))))
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@ -1900,8 +1950,7 @@ ecore_x_randr_output_possible_crtcs_get(Ecore_X_Window root, Ecore_X_Randr_Outpu
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for (i = 0; i < info->ncrtc; i++)
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crtcs[i] = info->crtcs[i];
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if (num) *num = info->ncrtc;
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}
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}
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/* free the output info */
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@ -2103,7 +2152,8 @@ ecore_x_randr_move_all_crtcs_but(Ecore_X_Window root, const Ecore_X_Randr_Crtc *
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int n = 0;
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n = (res->ncrtc - nnot_moved);
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if (n > 0)
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{
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/* try to allocate space for a list of crtcs */
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if ((crtcs = malloc(n * sizeof(Ecore_X_Randr_Crtc))))
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{
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@ -2120,13 +2170,17 @@ ecore_x_randr_move_all_crtcs_but(Ecore_X_Window root, const Ecore_X_Randr_Crtc *
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if (j == nnot_moved) crtcs[k++] = res->crtcs[i];
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}
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}
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}
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/* free the resources */
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XRRFreeScreenResources(res);
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/* actually move the crtcs */
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if (crtcs)
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{
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ret = ecore_x_randr_move_crtcs(root, crtcs, n, dx, dy);
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free(crtcs);
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}
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return ret;
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}
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@ -2156,6 +2210,8 @@ ecore_x_randr_move_crtcs(Ecore_X_Window root, const Ecore_X_Randr_Crtc *crtcs, i
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if (_randr_version < RANDR_VERSION_1_2) return EINA_FALSE;
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if (ncrtc < 1) return EINA_FALSE;
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/* try to get the screen resources from Xrandr */
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if ((res = _ecore_x_randr_screen_resources_get(_ecore_x_disp, root)))
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{
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@ -2559,7 +2615,7 @@ ecore_x_randr_output_edid_get(Ecore_X_Window root EINA_UNUSED, Ecore_X_Randr_Out
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AnyPropertyType, &type, &format, &nitems,
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&bytes, &prop))
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{
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if ((type == XA_INTEGER) && (format == 8))
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if ((type == XA_INTEGER) && (nitems >= 1) && (format == 8))
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{
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unsigned char *ret = NULL;
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@ -2702,13 +2758,17 @@ ecore_x_randr_output_signal_formats_get(Ecore_X_Window root EINA_UNUSED, Ecore_X
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{
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Ecore_X_Randr_Signal_Format *formats = NULL;
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if (num) *num = info->num_values;
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if (info->num_values > 0)
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{
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if ((formats =
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malloc(info->num_values * sizeof(Ecore_X_Randr_Signal_Format))))
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{
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if (num) *num = info->num_values;
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memcpy(formats, info->values,
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(info->num_values * sizeof(Ecore_X_Randr_Signal_Format)));
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}
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}
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/* free the info */
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free(info);
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@ -2766,13 +2826,17 @@ ecore_x_randr_output_signal_properties_get(Ecore_X_Window root EINA_UNUSED, Ecor
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{
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Ecore_X_Randr_Signal_Property *props = NULL;
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if (num) *num = info->num_values;
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if (info->num_values > 0)
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{
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if ((props =
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malloc(info->num_values * sizeof(Ecore_X_Randr_Signal_Property))))
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{
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if (num) *num = info->num_values;
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memcpy(props, info->values,
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(info->num_values * sizeof(Ecore_X_Randr_Signal_Property)));
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}
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}
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/* free the info */
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free(info);
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