Canvas mipmaps flag;

src/api/graphics.c

@@ -944,7 +944,7 @@ int l_lovrGraphicsNewShaderBlock(lua_State* L) {
 int l_lovrGraphicsNewCanvas(lua_State* L) {
   int width = luaL_checkinteger(L, 1);
   int height = luaL_checkinteger(L, 2);
-  CanvasFlags flags = { .depth = DEPTH_D16, .stereo = true, .msaa = 0 };
+  CanvasFlags flags = { .depth = DEPTH_D16, .stereo = true, .msaa = 0, .mipmaps = true };
 
   if (lua_istable(L, 3)) {
     lua_getfield(L, 3, "depth");
@@ -962,6 +962,10 @@ int l_lovrGraphicsNewCanvas(lua_State* L) {
     lua_getfield(L, 3, "msaa");
     flags.msaa = lua_isnil(L, -1) ? flags.msaa : luaL_checkinteger(L, -1);
     lua_pop(L, 1);
+
+    lua_getfield(L, 3, "mipmaps");
+    flags.mipmaps = lua_isnil(L, -1) ? flags.mipmaps : lua_toboolean(L, -1);
+    lua_pop(L, 1);
   }
 
   Canvas* canvas = lovrCanvasCreate(width, height, flags);

src/graphics/canvas.h

@@ -21,6 +21,7 @@ typedef struct {
   DepthFormat depth;
   bool stereo;
   int msaa;
+  bool mipmaps;
 } CanvasFlags;
 
 typedef struct Canvas Canvas;

src/graphics/opengl.c

@@ -1421,6 +1421,16 @@ void lovrCanvasResolve(Canvas* canvas) {
     glReadBuffer(0);
     glDrawBuffers(canvas->count, buffers);
   }
+
+  if (canvas->flags.mipmaps) {
+    for (int i = 0; i < canvas->count; i++) {
+      Texture* texture = canvas->attachments[i].texture;
+      if (texture->mipmapCount > 1) {
+        lovrGpuBindTexture(texture, 0);
+        glGenerateMipmap(texture->target);
+      }
+    }
+  }
 }
 
 void lovrCanvasBlit(Canvas* canvas) {