From f8e1ab8f312a2d78976f7ca97d647d40866ad819 Mon Sep 17 00:00:00 2001
From: Geoffrey McRae <geoff@hostfission.com>
Date: Sun, 1 Aug 2021 18:18:08 +1000
Subject: [PATCH] [client] renderers: add new needs_render method to the
 interface

With jitRender the renderer needs to tell the main application if it
needs to be rendererd, such as during the initial splash screen fade
out.
---
 client/include/interface/renderer.h | 3 +++
 client/renderers/EGL/egl.c          | 7 +++++++
 client/renderers/OpenGL/opengl.c    | 7 +++++++
 3 files changed, 17 insertions(+)

diff --git a/client/include/interface/renderer.h b/client/include/interface/renderer.h
index 6b84a869..50274465 100644
--- a/client/include/interface/renderer.h
+++ b/client/include/interface/renderer.h
@@ -36,6 +36,7 @@
    (x)->on_mouse_shape && \
    (x)->on_mouse_event && \
    (x)->render_startup && \
+   (x)->needs_render   && \
    (x)->render)
 
 typedef struct LG_RendererParams
@@ -112,6 +113,7 @@ typedef bool         (* LG_RendererOnMouseEvent )(void * opaque, const bool visi
 typedef bool         (* LG_RendererOnFrameFormat)(void * opaque, const LG_RendererFormat format, bool useDMA);
 typedef bool         (* LG_RendererOnFrame      )(void * opaque, const FrameBuffer * frame, int dmaFD, const FrameDamageRect * damage, int damageCount);
 typedef bool         (* LG_RendererRenderStartup)(void * opaque);
+typedef bool         (* LG_RendererNeedsRender  )(void * opaque);
 typedef bool         (* LG_RendererRender       )(void * opaque, LG_RendererRotate rotate, const bool newFrame, const bool invalidateWindow);
 
 typedef struct LG_Renderer
@@ -130,6 +132,7 @@ typedef struct LG_Renderer
   LG_RendererOnFrameFormat  on_frame_format;
   LG_RendererOnFrame        on_frame;
   LG_RendererRenderStartup  render_startup;
+  LG_RendererNeedsRender    needs_render;
   LG_RendererRender         render;
 }
 LG_Renderer;
diff --git a/client/renderers/EGL/egl.c b/client/renderers/EGL/egl.c
index f7db5b4a..dabbca26 100644
--- a/client/renderers/EGL/egl.c
+++ b/client/renderers/EGL/egl.c
@@ -805,6 +805,12 @@ static bool egl_render_startup(void * opaque)
   return true;
 }
 
+static bool egl_needs_render(void * opaque)
+{
+  struct Inst * this = (struct Inst *)opaque;
+  return !this->waitDone;
+}
+
 static bool egl_render(void * opaque, LG_RendererRotate rotate, const bool newFrame,
     const bool invalidateWindow)
 {
@@ -1007,5 +1013,6 @@ struct LG_Renderer LGR_EGL =
   .on_frame_format = egl_on_frame_format,
   .on_frame        = egl_on_frame,
   .render_startup  = egl_render_startup,
+  .needs_render    = egl_needs_render,
   .render          = egl_render
 };
diff --git a/client/renderers/OpenGL/opengl.c b/client/renderers/OpenGL/opengl.c
index c5acbd61..08f70071 100644
--- a/client/renderers/OpenGL/opengl.c
+++ b/client/renderers/OpenGL/opengl.c
@@ -456,6 +456,12 @@ bool opengl_render_startup(void * opaque)
   return true;
 }
 
+static bool opengl_needs_render(void * opaque)
+{
+  struct Inst * this = (struct Inst *)opaque;
+  return !this->waitDone;
+}
+
 bool opengl_render(void * opaque, LG_RendererRotate rotate, const bool newFrame,
     const bool invalidateWindow)
 {
@@ -618,6 +624,7 @@ const LG_Renderer LGR_OpenGL =
   .on_frame_format = opengl_on_frame_format,
   .on_frame        = opengl_on_frame,
   .render_startup  = opengl_render_startup,
+  .needs_render    = opengl_needs_render,
   .render          = opengl_render
 };