commit e43c5033cb5b82d9e46ee398524a8972dc87b896
author Weizhung Ding <weizhungding@google.com> Tue Jul 19 16:34:43 2022 +0800
committer Fred Chiou <fredchiou@google.com> Wed Aug 31 08:36:07 2022 +0000
tree 2616683e7cd0fe88bf44f6f1d51ed4eb9b5f1da8
parent efa2100268a507ccc799aed2312d36b8c17bb6cb

minui: Add API to support multiple connectors detection

Add API to support multiple connectors detection

Bug: 227468133
Test: check log in recovery mode
Change-Id: I18c5e0f373a29b153aab038bd289eed18847f2af
Merged-In: I18c5e0f373a29b153aab038bd289eed18847f2af

minui/graphics.cpp

diff --git a/minui/graphics.cpp b/minui/graphics.cpp
index b24c2b1..41a3661 100644
--- a/minui/graphics.cpp
+++ b/minui/graphics.cpp
@@ -502,3 +502,7 @@
 void gr_rotate(GRRotation rot) {
   rotation = rot;
 }
+
+bool gr_has_multiple_connectors() {
+  return gr_backend->HasMultipleConnectors();
+}

minui/graphics.h

diff --git a/minui/graphics.h b/minui/graphics.h
index 5408c93..ff063ae 100644
--- a/minui/graphics.h
+++ b/minui/graphics.h
@@ -40,8 +40,11 @@
   // Blank (or unblank) the specific screen.
   virtual void Blank(bool blank, DrmConnector index) = 0;
 
+  // Return true if the device supports multiple connectors.
+  virtual bool HasMultipleConnectors() = 0;
+
   // Device cleanup when drawing is done.
-  virtual ~MinuiBackend() {};
+  virtual ~MinuiBackend() = default;
 };
 
 #endif  // _GRAPHICS_H_

minui/graphics_drm.cpp

diff --git a/minui/graphics_drm.cpp b/minui/graphics_drm.cpp
index c557022..6c3a5bd 100644
--- a/minui/graphics_drm.cpp
+++ b/minui/graphics_drm.cpp
@@ -200,6 +200,10 @@
   }
 }
 
+bool MinuiBackendDrm::HasMultipleConnectors() {
+  return (drm[DRM_SEC].GRSurfaceDrms[0] && drm[DRM_SEC].GRSurfaceDrms[1]);
+}
+
 static drmModeCrtc* find_crtc_for_connector(int fd, drmModeRes* resources,
                                             drmModeConnector* connector) {
   // Find the encoder. If we already have one, just use it.

minui/graphics_drm.h

diff --git a/minui/graphics_drm.h b/minui/graphics_drm.h
index fe3beaf..a8c9886 100644
--- a/minui/graphics_drm.h
+++ b/minui/graphics_drm.h
@@ -60,6 +60,7 @@
   GRSurface* Flip() override;
   void Blank(bool) override;
   void Blank(bool blank, DrmConnector index) override;
+  bool HasMultipleConnectors() override;
 
  private:
   void DrmDisableCrtc(int drm_fd, drmModeCrtc* crtc);

minui/graphics_fbdev.cpp

diff --git a/minui/graphics_fbdev.cpp b/minui/graphics_fbdev.cpp
index 1cb0c0a..4a7d325 100644
--- a/minui/graphics_fbdev.cpp
+++ b/minui/graphics_fbdev.cpp
@@ -47,6 +47,11 @@
   fprintf(stderr, "Unsupported multiple connectors, blank = %d, index = %d\n", blank, index);
 }
 
+bool MinuiBackendFbdev::HasMultipleConnectors() {
+  fprintf(stderr, "Unsupported multiple connectors\n");
+  return false;
+}
+
 void MinuiBackendFbdev::SetDisplayedFramebuffer(size_t n) {
   if (n > 1 || !double_buffered) return;
 

minui/graphics_fbdev.h

diff --git a/minui/graphics_fbdev.h b/minui/graphics_fbdev.h
index 7e193c4..c772428 100644
--- a/minui/graphics_fbdev.h
+++ b/minui/graphics_fbdev.h
@@ -57,6 +57,7 @@
   GRSurface* Flip() override;
   void Blank(bool) override;
   void Blank(bool blank, DrmConnector index) override;
+  bool HasMultipleConnectors() override;
 
  private:
   void SetDisplayedFramebuffer(size_t n);

minui/include/minui/minui.h

diff --git a/minui/include/minui/minui.h b/minui/include/minui/minui.h
index f9be82f..2353ed3 100644
--- a/minui/include/minui/minui.h
+++ b/minui/include/minui/minui.h
@@ -129,6 +129,7 @@
 void gr_flip();
 void gr_fb_blank(bool blank);
 void gr_fb_blank(bool blank, int index);
+bool gr_has_multiple_connectors();
 
 // Clears entire surface to current color.
 void gr_clear();