Use gles2 as default UI type under wasm

Signed-off-by: falkTX <falktx@falktx.com>

Makefile.base.mk

@@ -668,13 +668,9 @@ endif
 
 ifeq ($(USE_GLES2),true)
 BUILD_CXX_FLAGS += -DDGL_USE_OPENGL3 -DDGL_USE_GLES -DDGL_USE_GLES2
-endif
-
-ifeq ($(USE_GLES3),true)
+else ifeq ($(USE_GLES3),true)
 BUILD_CXX_FLAGS += -DDGL_USE_OPENGL3 -DDGL_USE_GLES -DDGL_USE_GLES3
-endif
-
-ifeq ($(USE_OPENGL3),true)
+else ifeq ($(USE_OPENGL3),true)
 BUILD_CXX_FLAGS += -DDGL_USE_OPENGL3
 endif
 

Makefile.plugins.mk

@@ -205,8 +205,12 @@ UI_TYPE = none
 endif
 
 ifeq ($(UI_TYPE),)
+ifeq ($(WASM),true)
+UI_TYPE = gles2
+else
 UI_TYPE = opengl
 endif
+endif
 
 ifeq ($(UI_TYPE),generic)
 ifeq ($(HAVE_OPENGL),true)

dgl/Makefile

@@ -171,8 +171,13 @@ all: $(TARGETS)
 cairo:   $(BUILD_DIR)/libdgl-cairo.a
 gles2:   $(BUILD_DIR)/libdgl-gles2.a
 gles3:   $(BUILD_DIR)/libdgl-gles3.a
+ifeq ($(WASM),true)
+opengl:  gles2
+opengl3: gles3
+else
 opengl:  $(BUILD_DIR)/libdgl-opengl.a
 opengl3: $(BUILD_DIR)/libdgl-opengl3.a
+endif
 stub:    $(BUILD_DIR)/libdgl-stub.a
 vulkan:  $(BUILD_DIR)/libdgl-vulkan.a
 web:     $(BUILD_DIR)/libdgl-web.a