examples/devpmtest: kill some tests cases when drawing to a memory pi…

…xelmap

It doesn't support format conversions.

examples/devpmtest/main.c

@@ -171,6 +171,12 @@ typedef struct br_smpte_state {
     br_pixelmap *pm;
 } br_smpte_state;
 
+static void smpte_fini(void *user)
+{
+    br_smpte_state *state = user;
+    BrPixelmapFree(state->pm);
+}
+
 static br_error smpte_init(void *user, br_pixelmap *screen, br_pixelmap *backbuffer, void *arg)
 {
     br_smpte_state *state = user;
@@ -180,6 +186,12 @@ static br_error smpte_init(void *user, br_pixelmap *screen, br_pixelmap *backbuf
         return BRE_FAIL;
     }
 
+    if(ObjectDevice(backbuffer) == NULL && state->pm->type != backbuffer->type) {
+        BrLogError("APP", "Disabling SMPTE type %d due to memory device format %d", state->pm->type, backbuffer->type);
+        smpte_fini(state);
+        return BRE_FAIL;
+    }
+
     return BRE_OK;
 }
 
@@ -193,12 +205,6 @@ static void smpte_draw(br_pixelmap *dest, float dt, void *user)
     BrPixelmapRectangleCopy(dest, base_x, base_y, pm, -pm->origin_x, -pm->origin_y, pm->width, pm->height);
 }
 
-static void smpte_fini(void *user)
-{
-    br_smpte_state *state = user;
-    BrPixelmapFree(state->pm);
-}
-
 typedef struct br_index8nopal_state {
     br_pixelmap *earth;
     br_pixelmap *pal_std;
@@ -508,6 +514,15 @@ static br_error submap_init(void *user, br_pixelmap *screen, br_pixelmap *backbu
         return BRE_FAIL;
     }
 
+    /*
+     * Memory pixelmaps don't support copying different types.
+     */
+    if(ObjectDevice(state->checkerboard_device) == NULL) {
+        BrLogWarn("APP", "Disable Sub-pixelmap test due to memory device.");
+        submap_fini(user);
+        return BRE_FAIL;
+    }
+
     BrPixelmapCopy(state->checkerboard_device, state->checkerboard_memory);
 
     if((state->middle_square = BrPixelmapAllocateSub(backbuffer, -300, -300, 600, 600)) == NULL) {