2 files changed, 23 insertions, 2 deletions
diff --git a/drivers/gles2/rasterizer_gles2.cpp b/drivers/gles2/rasterizer_gles2.cpp
index 373de2bb22..c7b2d65a13 100644
--- a/drivers/gles2/rasterizer_gles2.cpp
+++ b/drivers/gles2/rasterizer_gles2.cpp
@@ -921,6 +921,11 @@ void RasterizerGLES2::texture_allocate(RID p_texture,int p_width, int p_height,I
 		texture->alloc_height = texture->height;
 	};
 
+	if (!(p_flags&VS::TEXTURE_FLAG_VIDEO_SURFACE) && shrink_textures_x2) {
+		texture->alloc_height = MAX(1,texture->alloc_height/2);
+		texture->alloc_width = MAX(1,texture->alloc_width/2);
+	}
+
 
 	texture->gl_components_cache=components;
 	texture->gl_format_cache=format;
@@ -970,8 +975,15 @@ void RasterizerGLES2::texture_set_data(RID p_texture,const Image& p_image,VS::Cu
 
 	if (texture->alloc_width != img.get_width() || texture->alloc_height != img.get_height()) {
 
-		if (img.get_format() <= Image::FORMAT_INDEXED_ALPHA)
+
+		if (texture->alloc_width == img.get_width()/2 && texture->alloc_height == img.get_height()/2) {
+
+			img.shrink_x2();
+		} else if (img.get_format() <= Image::FORMAT_INDEXED_ALPHA) {
+
 			img.resize(texture->alloc_width, texture->alloc_height, Image::INTERPOLATE_BILINEAR);
+
+		}
 	};
 
 
@@ -1452,6 +1464,11 @@ void RasterizerGLES2::texture_debug_usage(List<VS::TextureInfo> *r_info){
 
 }
 
+void RasterizerGLES2::texture_set_shrink_all_x2_on_set_data(bool p_enable) {
+
+	shrink_textures_x2=p_enable;
+}
+
 /* SHADER API */
 
 RID RasterizerGLES2::shader_create(VS::ShaderMode p_mode) {
@@ -11342,7 +11359,7 @@ void RasterizerGLES2::set_force_16_bits_fbo(bool p_force) {
 RasterizerGLES2::RasterizerGLES2(bool p_compress_arrays,bool p_keep_ram_copy,bool p_default_fragment_lighting,bool p_use_reload_hooks) {
 
 	_singleton = this;
-
+	shrink_textures_x2=false;
 	RenderList::max_elements=GLOBAL_DEF("rasterizer/max_render_elements",(int)RenderList::DEFAULT_MAX_ELEMENTS);
 	if (RenderList::max_elements>64000)
 		RenderList::max_elements=64000;
diff --git a/drivers/gles2/rasterizer_gles2.h b/drivers/gles2/rasterizer_gles2.h
index 2a2f587f11..b52918c02f 100644
--- a/drivers/gles2/rasterizer_gles2.h
+++ b/drivers/gles2/rasterizer_gles2.h
@@ -108,6 +108,8 @@ class RasterizerGLES2 : public Rasterizer {
 	bool use_half_float;
 	bool low_memory_2d;
 
+	bool shrink_textures_x2;
+
 	Vector<float> skel_default;
 
 	Image _get_gl_image_and_format(const Image& p_image, Image::Format p_format, uint32_t p_flags,GLenum& r_gl_format,GLenum& r_gl_internal_format,int &r_gl_components,bool &r_has_alpha_cache,bool &r_compressed);
@@ -1336,6 +1338,8 @@ public:
 	virtual String texture_get_path(RID p_texture) const;
 	virtual void texture_debug_usage(List<VS::TextureInfo> *r_info);
 
+	virtual void texture_set_shrink_all_x2_on_set_data(bool p_enable);
+
 	GLuint _texture_get_name(RID p_tex);
 
 	/* SHADER API */