WIP on deleting some managed textures when context is lost but managed textures is not actually supported by graphics api

src/EnvRenderer.c

@@ -769,6 +769,12 @@ static void OnContextLost(void* obj) {
 	DeleteVbs();
 	Gfx_DeleteTexture(&sides_tex);
 	Gfx_DeleteTexture(&edges_tex);
+
+	if (Gfx.ManagedTextures) return;
+	Gfx_DeleteTexture(&clouds_tex);
+	Gfx_DeleteTexture(&skybox_tex);
+	Gfx_DeleteTexture(&rain_tex);
+	Gfx_DeleteTexture(&snow_tex);
 }
 
 static void UpdateAll(void) {
@@ -894,11 +900,6 @@ static void EnvRenderer_Free(void) {
 	OnContextLost(NULL);
 	Mem_Free(Weather_Heightmap);
 	Weather_Heightmap = NULL;
-
-	Gfx_DeleteTexture(&clouds_tex);
-	Gfx_DeleteTexture(&skybox_tex);
-	Gfx_DeleteTexture(&rain_tex);
-	Gfx_DeleteTexture(&snow_tex);
 }
 
 static void EnvRenderer_Reset(void) {

src/Game.c

@@ -602,6 +602,7 @@ static void Game_RenderFrame(double delta) {
 void Game_Free(void* obj) {
 	struct IGameComponent* comp;
 	Atlas_Free();
+	Gfx.ManagedTextures = false;
 
 	Event_UnregisterVoid(&WorldEvents.NewMap,         NULL, HandleOnNewMap);
 	Event_UnregisterVoid(&WorldEvents.MapLoaded,      NULL, HandleOnNewMapLoaded);

src/Graphics.c

@@ -406,6 +406,7 @@ void Gfx_Init(void) {
 
 	Gfx.MinZNear        = 0.05f;
 	customMipmapsLevels = true;
+	Gfx.ManagedTextures = true;
 	CommonInit();
 	TryCreateDevice();
 }

src/Graphics.h

@@ -39,6 +39,7 @@ CC_VAR extern struct _GfxData {
 	/* Whether some textures are created with mipmaps. */
 	cc_bool Mipmaps;
 	/* Whether managed textures are actually supported. */
+	/* If not, you must free/create them just like normal textures */
 	cc_bool ManagedTextures;
 	/* Whether Gfx_Init has been called to initialise state. */
 	cc_bool Initialised;

src/Gui.c

@@ -129,7 +129,7 @@ static void Gui_LoadOptions(void) {
 	Gui_RawChatScale      = Options_GetFloat(OPT_CHAT_SCALE,      0.35f, 5.0f, 1.0f);
 }
 
-static void OnContextLost(void* obj) {
+static void LoseAllScreens(void) {
 	struct Screen* s;
 	int i;
 
@@ -150,7 +150,7 @@ static void OnContextRecreated(void* obj) {
 }
 
 void Gui_RefreshAll(void) { 
-	OnContextLost(NULL);
+	LoseAllScreens();
 	OnContextRecreated(NULL);
 }
 
@@ -393,6 +393,15 @@ static void OnTextChanged(void* obj, const String* str) {
 }
 #endif
 
+static void OnContextLost(void* obj) {
+	LoseAllScreens();
+	if (Gfx.ManagedTextures) return;
+
+	Gfx_DeleteTexture(&Gui_GuiTex);
+	Gfx_DeleteTexture(&Gui_GuiClassicTex);
+	Gfx_DeleteTexture(&Gui_IconsTex);
+}
+
 static void Gui_Init(void) {
 	Event_RegisterVoid(&ChatEvents.FontChanged,     NULL, OnFontChanged);
 	Event_RegisterEntry(&TextureEvents.FileChanged, NULL, OnFileChanged);
@@ -422,9 +431,7 @@ static void Gui_Free(void) {
 
 	while (Gui_ScreensCount) Gui_Remove(Gui_Screens[0]);
 
-	Gfx_DeleteTexture(&Gui_GuiTex);
-	Gfx_DeleteTexture(&Gui_GuiClassicTex);
-	Gfx_DeleteTexture(&Gui_IconsTex);
+	OnContextLost(NULL);
 	Gui_Reset();
 }
 

src/Model.c

@@ -419,7 +419,13 @@ static struct ModelTex* textures_tail;
 #define Model_RetAABB(x1,y1,z1, x2,y2,z2) static struct AABB BB = { (x1)/16.0f,(y1)/16.0f,(z1)/16.0f, (x2)/16.0f,(y2)/16.0f,(z2)/16.0f }; e->ModelAABB = BB;
 
 static void Models_ContextLost(void* obj) {
+	struct ModelTex* tex;
 	Gfx_DeleteDynamicVb(&Models.Vb);
+	if (Gfx.ManagedTextures) return;
+
+	for (tex = textures_head; tex; tex = tex->next) {
+		Gfx_DeleteTexture(&tex->texID);
+	}
 }
 
 static void Models_ContextRecreated(void* obj) {
@@ -2024,18 +2030,12 @@ static void Models_Init(void) {
 }
 
 static void Models_Free(void) {
-	struct ModelTex* tex;
-
-	for (tex = textures_head; tex; tex = tex->next) {
-		Gfx_DeleteTexture(&tex->texID);
-	}
 	Models_ContextLost(NULL);
+	CustomModel_FreeAll();
 
 	Event_UnregisterEntry(&TextureEvents.FileChanged, NULL, Models_TextureChanged);
 	Event_UnregisterVoid(&GfxEvents.ContextLost,      NULL, Models_ContextLost);
 	Event_UnregisterVoid(&GfxEvents.ContextRecreated, NULL, Models_ContextRecreated);
-
-	CustomModel_FreeAll();
 }
 
 static void Models_Reset(void) { CustomModel_FreeAll(); }

src/Particle.c

@@ -573,6 +573,9 @@ void Particles_CustomEffect(int effectID, float x, float y, float z, float origi
 *#########################################################################################################################*/
 static void OnContextLost(void* obj) {
 	Gfx_DeleteDynamicVb(&Particles_VB); 
+
+	if (Gfx.ManagedTextures) return;
+	Gfx_DeleteTexture(&Particles_TexId);
 }
 static void OnContextRecreated(void* obj) {
 	Particles_VB = Gfx_CreateDynamicVb(VERTEX_FORMAT_TEXTURED, PARTICLES_MAX * 4);
@@ -599,7 +602,6 @@ static void Particles_Init(void) {
 }
 
 static void Particles_Free(void) {
-	Gfx_DeleteTexture(&Particles_TexId);
 	OnContextLost(NULL);
 
 	Event_UnregisterBlock(&UserEvents.BlockChanged,   NULL, OnBreakBlockEffect_Handler);