Add some missing checks in renderers.

5 files changed, 10 insertions, 0 deletions

diff --git a/src/render/mobileopenglgraphics.cpp b/src/render/mobileopenglgraphics.cpp
index b385d8306..0ee37ddfe 100644
--- a/src/render/mobileopenglgraphics.cpp
+++ b/src/render/mobileopenglgraphics.cpp
@@ -845,6 +845,8 @@ void MobileOpenGLGraphics::calcWindow(ImageCollection *const vertCol,
         return;
     ImageVertexes *vert = nullptr;
     const Image *const image = imgRect.grid[4];
+    if (!image)
+        return;
     if (vertCol->currentGLImage != image->mGLImage)
     {
         vert = new ImageVertexes();
diff --git a/src/render/modernopenglgraphics.cpp b/src/render/modernopenglgraphics.cpp
index 9f3bd9809..e544254b4 100644
--- a/src/render/modernopenglgraphics.cpp
+++ b/src/render/modernopenglgraphics.cpp
@@ -797,6 +797,8 @@ void ModernOpenGLGraphics::calcWindow(ImageCollection *const vertCol,
         return;
     ImageVertexes *vert = nullptr;
     const Image *const image = imgRect.grid[4];
+    if (!image)
+        return;
     if (vertCol->currentGLImage != image->mGLImage)
     {
         vert = new ImageVertexes();
diff --git a/src/render/sdl2graphics.cpp b/src/render/sdl2graphics.cpp
index 3b631caa5..7bad93889 100644
--- a/src/render/sdl2graphics.cpp
+++ b/src/render/sdl2graphics.cpp
@@ -635,6 +635,8 @@ void SDLGraphics::calcWindow(ImageCollection *const vertCol,
 {
     ImageVertexes *vert = nullptr;
     Image *const image = imgRect.grid[4];
+    if (!image)
+        return;
     if (vertCol->currentImage != image)
     {
         vert = new ImageVertexes();
diff --git a/src/render/sdl2softwaregraphics.cpp b/src/render/sdl2softwaregraphics.cpp
index f7e5b9ee1..3afadd27c 100644
--- a/src/render/sdl2softwaregraphics.cpp
+++ b/src/render/sdl2softwaregraphics.cpp
@@ -819,6 +819,8 @@ void SDL2SoftwareGraphics::calcWindow(ImageCollection *const vertCol,
 {
     ImageVertexes *vert = nullptr;
     Image *const image = imgRect.grid[4];
+    if (!image)
+        return;
     if (vertCol->currentImage != image)
     {
         vert = new ImageVertexes();
diff --git a/src/render/sdlgraphics.cpp b/src/render/sdlgraphics.cpp
index db2d15ae4..771d000d8 100644
--- a/src/render/sdlgraphics.cpp
+++ b/src/render/sdlgraphics.cpp
@@ -821,6 +821,8 @@ void SDLGraphics::calcWindow(ImageCollection *const vertCol,
 
     ImageVertexes *vert = nullptr;
     Image *const image = imgRect.grid[4];
+    if (!image)
+        return;
     if (vertCol->currentImage != image)
     {
         vert = new ImageVertexes();