Implemented display aware glfwVideoModes function for X11 XRandR and win32.

src/fullscreen.c

@@ -110,13 +110,19 @@ GLFWAPI int glfwGetVideoModes(GLFWdisplay display, GLFWvidmode* list, int maxcou
         return 0;
     }
 
+    if (display == GLFW_DISPLAY_INVALID_HANDLE)
+    {
+        _glfwSetError(GLFW_INVALID_VALUE, "Display handle is invalid.");
+        return 0;
+    }
+
     if (maxcount <= 0 || list == NULL)
     {
         // TODO: Figure out if this is an error
         return 0;
     }
 
-    count = _glfwPlatformGetVideoModes(list, maxcount);
+    count = _glfwPlatformGetVideoModes(display, list, maxcount);
     if (count > 0)
         qsort(list, count, sizeof(GLFWvidmode), _glfwCompareVideoModes);
 

src/internal.h

@@ -232,6 +232,9 @@ struct _GLFWdisplay
     // logical orientation of the screen on the desktop
     int       screenXPosition;
     int       screenYPosition;
+
+    // These are defined in the current port's platform.h
+    _GLFW_PLATFORM_DISPLAY_STATE;
 };
 
 //------------------------------------------------------------------------
@@ -298,7 +301,7 @@ void _glfwPlatformEnableSystemKeys(_GLFWwindow* window);
 void _glfwPlatformDisableSystemKeys(_GLFWwindow* window);
 
 // Fullscreen
-int  _glfwPlatformGetVideoModes(GLFWvidmode* list, int maxcount);
+int  _glfwPlatformGetVideoModes(GLFWdisplay display, GLFWvidmode* list, int maxcount);
 void _glfwPlatformGetDesktopMode(GLFWvidmode* mode);
 
 // Gamma ramp

src/win32_display.c

@@ -57,6 +57,8 @@ _GLFWdisplay** _glfwCreateDisplay(_GLFWdisplay** current, DISPLAY_DEVICE* adapte
 
     (*current)->screenXPosition = setting->dmPosition.x;
     (*current)->screenYPosition = setting->dmPosition.y;
+
+    memcpy((*current)->Win32.DeviceName, adapter->DeviceName, 32);
     return &((*current)->next);
 }
 

src/win32_fullscreen.c

@@ -182,7 +182,7 @@ void _glfwRestoreVideoMode(void)
 // Get a list of available video modes
 //========================================================================
 
-int _glfwPlatformGetVideoModes(GLFWvidmode* list, int maxcount)
+int  _glfwPlatformGetVideoModes(GLFWdisplay display, GLFWvidmode* list, int maxcount)
 {
     DEVMODE deviceMode;
     DWORD deviceModeNum;
@@ -197,7 +197,7 @@ int _glfwPlatformGetVideoModes(GLFWvidmode* list, int maxcount)
     vidModes = NULL;
     vidModesCount = 0;
 
-    while (EnumDisplaySettings(NULL, deviceModeNum, &deviceMode) && (!list || (vidModesCount < maxcount)))
+    while (EnumDisplaySettings(display->Win32.DeviceName, deviceModeNum, &deviceMode) && (!list || (vidModesCount < maxcount)))
     {
         deviceModeNum++;
 

src/win32_platform.h

@@ -202,6 +202,7 @@ typedef DWORD (WINAPI * TIMEGETTIME_T) (void);
 #define _GLFW_PLATFORM_WINDOW_STATE  _GLFWwindowWin32 Win32
 #define _GLFW_PLATFORM_LIBRARY_STATE _GLFWlibraryWin32 Win32
 #define _GLFW_PLATFORM_CONTEXT_STATE _GLFWcontextWGL WGL
+#define _GLFW_PLATFORM_DISPLAY_STATE _GLFWdisplayWin32 Win32
 
 
 //========================================================================
@@ -310,6 +311,13 @@ typedef struct _GLFWlibraryWin32
 
 } _GLFWlibraryWin32;
 
+//------------------------------------------------------------------------
+// Platform-specific display structure
+//------------------------------------------------------------------------
+typedef struct _GLFWdisplayWin32
+{
+    char DeviceName[32];
+} _GLFWdisplayWin32;
 
 //========================================================================
 // Prototypes for platform specific internal functions

src/x11_display.c

@@ -51,6 +51,8 @@ _GLFWdisplay** _glfwCreateDisplay(_GLFWdisplay** current, XRROutputInfo* outputI
 
     (*current)->screenXPosition = crtcInfo->x;
     (*current)->screenYPosition = crtcInfo->y;
+
+    (*current)->X11.output = outputInfo;
     return &((*current)->next);
 }
 
@@ -60,6 +62,8 @@ _GLFWdisplay* _glfwDestroyDisplay(_GLFWdisplay* display)
 
     result = display->next;
 
+    XRRFreeOutputInfo(display->X11.output);    
+
     _glfwFree(display);
 
     return result;
@@ -105,10 +109,9 @@ void _glfwInitDisplays(void)
 
                 curDisplay = _glfwCreateDisplay(curDisplay, outputInfo, crtcInfo);
 
+                // Freeing of the outputInfo is done in _glfwDestroyDisplay
                 XRRFreeCrtcInfo(crtcInfo);
             }
-
-            XRRFreeOutputInfo(outputInfo);
         }
     }
 }

src/x11_fullscreen.c

@@ -325,11 +325,26 @@ struct _glfwResolution
     int height;
 };
 
+int _glfwCompareResolution(const void* left, const void* right)
+{
+    int result = 0;
+    const struct _glfwResolution* leftResolution = left;
+    const struct _glfwResolution* rightResolution = right;
+
+    result = leftResolution->height - rightResolution->height;
+    if (result == 0)
+    {
+       result = leftResolution->width - rightResolution->width;
+    }
+
+    return result;
+}
+
 //========================================================================
 // List available video modes
 //========================================================================
 
-int _glfwPlatformGetVideoModes(GLFWvidmode* list, int maxcount)
+int _glfwPlatformGetVideoModes(GLFWdisplay display, GLFWvidmode* list, int maxcount)
 {
     int count, k, l, r, g, b, rgba, gl;
     int depth, screen;
@@ -397,19 +412,37 @@ int _glfwPlatformGetVideoModes(GLFWvidmode* list, int maxcount)
     if (_glfwLibrary.X11.RandR.available)
     {
 #if defined(_GLFW_HAS_XRANDR)
-        sc = XRRGetScreenInfo(_glfwLibrary.X11.display, _glfwLibrary.X11.root);
-        sizelist = XRRConfigSizes(sc, &sizecount);
+        XRRScreenResources* resource;
+        unsigned int a;
+        resource = XRRGetScreenResources(_glfwLibrary.X11.display, _glfwLibrary.X11.root);
 
-        resarray = (struct _glfwResolution*) _glfwMalloc(sizeof(struct _glfwResolution) * sizecount);
+        resarray = (struct _glfwResolution*) _glfwMalloc(sizeof(struct _glfwResolution) * display->X11.output->nmode);
 
-        for (k = 0;  k < sizecount;  k++)
+        for (k = 0; k < display->X11.output->nmode; k++)
         {
-            resarray[rescount].width = sizelist[k].width;
-            resarray[rescount].height = sizelist[k].height;
-            rescount++;
+            for (a = 0; a < resource->nmode; a++)
+            {
+                if (resource->modes[a].id != display->X11.output->modes[k])
+                {
+                    continue;
                 }
 
-        XRRFreeScreenConfigInfo(sc);
+                struct _glfwResolution res = {
+                    resource->modes[a].width,
+                    resource->modes[a].height
+                };
+
+                if (!bsearch(&res, resarray, rescount, sizeof(struct _glfwResolution), _glfwCompareResolution))
+                {
+                    resarray[rescount].width  = resource->modes[a].width;
+                    resarray[rescount].height = resource->modes[a].height;
+                    rescount++;
+                    qsort(resarray, rescount, sizeof(struct _glfwResolution), _glfwCompareResolution);
+                }
+            }
+        }
+
+        XRRFreeScreenResources(resource);
 #endif /*_GLFW_HAS_XRANDR*/
     }
     else if (_glfwLibrary.X11.VidMode.available)

src/x11_platform.h

@@ -88,6 +88,7 @@
 #define _GLFW_PLATFORM_WINDOW_STATE  _GLFWwindowX11 X11
 #define _GLFW_PLATFORM_LIBRARY_STATE _GLFWlibraryX11 X11
 #define _GLFW_PLATFORM_CONTEXT_STATE _GLFWcontextGLX GLX
+#define _GLFW_PLATFORM_DISPLAY_STATE _GLFWdisplayX11 X11
 
 
 //========================================================================
@@ -244,6 +245,15 @@ GLFWGLOBAL struct {
 } _glfwJoy[GLFW_JOYSTICK_LAST + 1];
 
 
+//------------------------------------------------------------------------
+// Platform-specific window structure
+//------------------------------------------------------------------------
+typedef struct _GLFWdisplayX11
+{
+   XRROutputInfo* output; 
+} _GLFWdisplayX11;
+
+
 //========================================================================
 // Prototypes for platform specific internal functions
 //========================================================================