cmake: fix uses of undefined macro identifiers (-Wundef)

src/render/SDL_render.c

@@ -89,39 +89,39 @@ this should probably be removed at some point in the future.  --ryan. */
     SDL_COMPOSE_BLENDMODE(SDL_BLENDFACTOR_DST_COLOR, SDL_BLENDFACTOR_ONE_MINUS_SRC_ALPHA, SDL_BLENDOPERATION_ADD, \
                           SDL_BLENDFACTOR_ZERO, SDL_BLENDFACTOR_ONE, SDL_BLENDOPERATION_ADD)
 
-#if !SDL_RENDER_DISABLED
+#ifndef SDL_RENDER_DISABLED
 static const SDL_RenderDriver *render_drivers[] = {
-#if SDL_VIDEO_RENDER_D3D
+#ifdef SDL_VIDEO_RENDER_D3D
     &D3D_RenderDriver,
 #endif
-#if SDL_VIDEO_RENDER_D3D11
+#ifdef SDL_VIDEO_RENDER_D3D11
     &D3D11_RenderDriver,
 #endif
-#if SDL_VIDEO_RENDER_D3D12
+#ifdef SDL_VIDEO_RENDER_D3D12
     &D3D12_RenderDriver,
 #endif
-#if SDL_VIDEO_RENDER_METAL
+#ifdef SDL_VIDEO_RENDER_METAL
     &METAL_RenderDriver,
 #endif
-#if SDL_VIDEO_RENDER_OGL
+#ifdef SDL_VIDEO_RENDER_OGL
     &GL_RenderDriver,
 #endif
-#if SDL_VIDEO_RENDER_OGL_ES2
+#ifdef SDL_VIDEO_RENDER_OGL_ES2
     &GLES2_RenderDriver,
 #endif
-#if SDL_VIDEO_RENDER_OGL_ES
+#ifdef SDL_VIDEO_RENDER_OGL_ES
     &GLES_RenderDriver,
 #endif
-#if SDL_VIDEO_RENDER_DIRECTFB
+#ifdef SDL_VIDEO_RENDER_DIRECTFB
     &DirectFB_RenderDriver,
 #endif
-#if SDL_VIDEO_RENDER_PS2
+#ifdef SDL_VIDEO_RENDER_PS2
     &PS2_RenderDriver,
 #endif
-#if SDL_VIDEO_RENDER_PSP
+#ifdef SDL_VIDEO_RENDER_PSP
     &PSP_RenderDriver,
 #endif
-#if SDL_VIDEO_RENDER_VITA_GXM
+#ifdef SDL_VIDEO_RENDER_VITA_GXM
     &VITA_GXM_RenderDriver,
 #endif
 #if SDL_VIDEO_RENDER_SW
@@ -643,7 +643,7 @@ static int UpdateLogicalSize(SDL_Renderer *renderer, SDL_bool flush_viewport_cmd
 
 int SDL_GetNumRenderDrivers(void)
 {
-#if !SDL_RENDER_DISABLED
+#ifndef SDL_RENDER_DISABLED
     return SDL_arraysize(render_drivers);
 #else
     return 0;
@@ -652,7 +652,7 @@ int SDL_GetNumRenderDrivers(void)
 
 int SDL_GetRenderDriverInfo(int index, SDL_RendererInfo *info)
 {
-#if !SDL_RENDER_DISABLED
+#ifndef SDL_RENDER_DISABLED
     if (index < 0 || index >= SDL_GetNumRenderDrivers()) {
         return SDL_SetError("index must be in the range of 0 - %d",
                             SDL_GetNumRenderDrivers() - 1);
@@ -878,7 +878,7 @@ int SDL_CreateWindowAndRenderer(int width, int height, Uint32 window_flags,
     return 0;
 }
 
-#if !SDL_RENDER_DISABLED
+#ifndef SDL_RENDER_DISABLED
 static SDL_INLINE void VerifyDrawQueueFunctions(const SDL_Renderer *renderer)
 {
     /* all of these functions are required to be implemented, even as no-ops, so we don't
@@ -935,7 +935,7 @@ static void SDL_CalculateSimulatedVSyncInterval(SDL_Renderer *renderer, SDL_Wind
 
 SDL_Renderer *SDL_CreateRenderer(SDL_Window *window, int index, Uint32 flags)
 {
-#if !SDL_RENDER_DISABLED
+#ifndef SDL_RENDER_DISABLED
     SDL_Renderer *renderer = NULL;
     int n = SDL_GetNumRenderDrivers();
     SDL_bool batching = SDL_TRUE;
@@ -1108,7 +1108,7 @@ error:
 
 SDL_Renderer *SDL_CreateSoftwareRenderer(SDL_Surface *surface)
 {
-#if !SDL_RENDER_DISABLED && SDL_VIDEO_RENDER_SW
+#if !defined(SDL_RENDER_DISABLED) && SDL_VIDEO_RENDER_SW
     SDL_Renderer *renderer;
 
     renderer = SW_CreateRendererForSurface(surface);
@@ -1451,7 +1451,7 @@ SDL_Texture *SDL_CreateTextureFromSurface(SDL_Renderer *renderer, SDL_Surface *s
             SDL_UpdateTexture(texture, NULL, surface->pixels, surface->pitch);
         }
 
-#if SDL_VIDEO_RENDER_DIRECTFB
+#ifdef SDL_VIDEO_RENDER_DIRECTFB
         /* DirectFB allows palette format for textures.
          * Copy SDL_Surface palette to the texture */
         if (SDL_ISPIXELFORMAT_INDEXED(format)) {
@@ -2284,7 +2284,7 @@ static int UpdateLogicalSize(SDL_Renderer *renderer, SDL_bool flush_viewport_cmd
 
     hint = SDL_GetHint(SDL_HINT_RENDER_LOGICAL_SIZE_MODE);
     if (hint && (*hint == '1' || SDL_strcasecmp(hint, "overscan") == 0)) {
-#if SDL_VIDEO_RENDER_D3D
+#ifdef SDL_VIDEO_RENDER_D3D
         SDL_bool overscan_supported = SDL_TRUE;
         /* Unfortunately, Direct3D 9 doesn't support negative viewport numbers
            which the overscan implementation relies on.