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Debug CanvasItem redraw

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I wanted to add this tool for years and always forget. This command line option:

```
$ godot.exe -e --debug-canvas-item-redraw
```

Allows to see when a canvas item is redrawn. This helps find out if something
in the UI is refreshing in a way it should not. Examples as such:

* Signals causing more of the UI to redraw.
* Container resizing causes more UI elements to redraw.
* Something using a timer is redrawing all time time, which can go unnoticed.

To my surprise, the editor UI is redrawing very efficiently. There is some
weird stuff with the scene tabs, redrawing when the inspector changes but most
things for the most part are fine.
This commit is contained in:
Juan Linietsky
2023-07-07 19:35:54 +02:00
committed by Rémi Verschelde
parent 713bfaf5ea
commit 407b16ab00
14 changed files with 124 additions and 0 deletions
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47
servers/rendering/renderer_rd/renderer_canvas_render_rd.cpp
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@@ -957,7 +957,48 @@ void RendererCanvasRenderRD::_render_item(RD::DrawListID p_draw_list, RID p_rend
c = c->next;
}
#ifdef DEBUG_ENABLED
if (debug_redraw && p_item->debug_redraw_time > 0.0) {
Color dc = debug_redraw_color;
dc.a *= p_item->debug_redraw_time / debug_redraw_time;
RID pipeline = pipeline_variants->variants[PIPELINE_LIGHT_MODE_DISABLED][PIPELINE_VARIANT_QUAD].get_render_pipeline(RD::INVALID_ID, p_framebuffer_format);
RD::get_singleton()->draw_list_bind_render_pipeline(p_draw_list, pipeline);
//bind textures
_bind_canvas_texture(p_draw_list, RID(), current_filter, current_repeat, last_texture, push_constant, texpixel_size);
Rect2 src_rect;
Rect2 dst_rect;
dst_rect = Rect2(Vector2(), p_item->rect.size);
src_rect = Rect2(0, 0, 1, 1);
push_constant.modulation[0] = dc.r;
push_constant.modulation[1] = dc.g;
push_constant.modulation[2] = dc.b;
push_constant.modulation[3] = dc.a;
push_constant.src_rect[0] = src_rect.position.x;
push_constant.src_rect[1] = src_rect.position.y;
push_constant.src_rect[2] = src_rect.size.width;
push_constant.src_rect[3] = src_rect.size.height;
push_constant.dst_rect[0] = dst_rect.position.x;
push_constant.dst_rect[1] = dst_rect.position.y;
push_constant.dst_rect[2] = dst_rect.size.width;
push_constant.dst_rect[3] = dst_rect.size.height;
RD::get_singleton()->draw_list_set_push_constant(p_draw_list, &push_constant, sizeof(PushConstant));
RD::get_singleton()->draw_list_bind_index_array(p_draw_list, shader.quad_index_array);
RD::get_singleton()->draw_list_draw(p_draw_list, true);
p_item->debug_redraw_time -= RSG::rasterizer->get_frame_delta_time();
RenderingServerDefault::redraw_request();
}
#endif
if (current_clip && reclip) {
//will make it re-enable clipping if needed afterwards
current_clip = nullptr;
@@ -2741,6 +2782,12 @@ void RendererCanvasRenderRD::set_shadow_texture_size(int p_size) {
}
}
void RendererCanvasRenderRD::set_debug_redraw(bool p_enabled, double p_time, const Color &p_color) {
debug_redraw = p_enabled;
debug_redraw_time = p_time;
debug_redraw_color = p_color;
}
RendererCanvasRenderRD::~RendererCanvasRenderRD() {
RendererRD::MaterialStorage *material_storage = RendererRD::MaterialStorage::get_singleton();
//canvas state