Remove hard code color space.

In general when there's a color space involved, we must explicitly
specify instead of hard coding.

Bug: N/A
Test: atest SurfaceFlinger_unittest
Change-Id: I87c84990b4ec4bd815d7d552346c5fc8c7274135
diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index bde73ba..8594ab3 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -592,19 +592,20 @@
     SAFE_PARCEL(output.writeFloat, frameScale);
     SAFE_PARCEL(output.writeBool, captureSecureLayers);
     SAFE_PARCEL(output.writeInt32, uid);
-    SAFE_PARCEL(output.writeBool, useRGBColorSpace);
+    SAFE_PARCEL(output.writeInt32, static_cast<int32_t>(dataspace));
     return NO_ERROR;
 }
 
 status_t CaptureArgs::read(const Parcel& input) {
-    int32_t format = 0;
-    SAFE_PARCEL(input.readInt32, &format);
-    pixelFormat = static_cast<ui::PixelFormat>(format);
+    int32_t value = 0;
+    SAFE_PARCEL(input.readInt32, &value);
+    pixelFormat = static_cast<ui::PixelFormat>(value);
     SAFE_PARCEL(input.read, sourceCrop);
     SAFE_PARCEL(input.readFloat, &frameScale);
     SAFE_PARCEL(input.readBool, &captureSecureLayers);
     SAFE_PARCEL(input.readInt32, &uid);
-    SAFE_PARCEL(input.readBool, &useRGBColorSpace);
+    SAFE_PARCEL(input.readInt32, &value);
+    dataspace = static_cast<ui::Dataspace>(value);
     return NO_ERROR;
 }
 
diff --git a/libs/gui/include/gui/LayerState.h b/libs/gui/include/gui/LayerState.h
index fed0ef3..ff395ec 100644
--- a/libs/gui/include/gui/LayerState.h
+++ b/libs/gui/include/gui/LayerState.h
@@ -312,12 +312,12 @@
     float frameScale{1};
     bool captureSecureLayers{false};
     int32_t uid{UNSET_UID};
-    // True to force using RGB color as the capture result.
+    // Force capture to be in a color space. If the value is ui::Dataspace::UNKNOWN, the captured
+    // result will be in the display's colorspace.
     // The display may use non-RGB dataspace (ex. displayP3) that could cause pixel data could be
-    // different from RGB (byte per color), and failed when checking colors.
-    // NOTE: This should only be used for testing since in normal cases, we want the screen
-    // capture's colorspace to match the display's colorspace
-    bool useRGBColorSpace{false};
+    // different from SRGB (byte per color), and failed when checking colors in tests.
+    // NOTE: In normal cases, we want the screen to be captured in display's colorspace.
+    ui::Dataspace dataspace = ui::Dataspace::UNKNOWN;
 
     virtual status_t write(Parcel& output) const;
     virtual status_t read(const Parcel& input);
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 7edbcaa..575da26 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -5414,9 +5414,8 @@
         // (ex. displayP3) to enhance the content, but some cases are checking native RGB in bytes,
         // and failed if display is not in native mode. This provide a way to force using native
         // colors when capture.
-        if (args.useRGBColorSpace) {
-            dataspace = Dataspace::V0_SRGB;
-        } else {
+        dataspace = args.dataspace;
+        if (dataspace == ui::Dataspace::UNKNOWN) {
             const ui::ColorMode colorMode = display->getCompositionDisplay()->getState().colorMode;
             dataspace = pickDataspaceFromColorMode(colorMode);
         }
@@ -5580,9 +5579,8 @@
         // (ex. displayP3) to enhance the content, but some cases are checking native RGB in bytes,
         // and failed if display is not in native mode. This provide a way to force using native
         // colors when capture.
-        if (args.useRGBColorSpace) {
-            dataspace = Dataspace::V0_SRGB;
-        } else {
+        dataspace = args.dataspace;
+        if (dataspace == ui::Dataspace::UNKNOWN) {
             const ui::ColorMode colorMode = display->getCompositionDisplay()->getState().colorMode;
             dataspace = pickDataspaceFromColorMode(colorMode);
         }
diff --git a/services/surfaceflinger/tests/utils/ScreenshotUtils.h b/services/surfaceflinger/tests/utils/ScreenshotUtils.h
index ca3551e..a13f93b 100644
--- a/services/surfaceflinger/tests/utils/ScreenshotUtils.h
+++ b/services/surfaceflinger/tests/utils/ScreenshotUtils.h
@@ -34,7 +34,7 @@
         const auto sf = ComposerService::getComposerService();
         SurfaceComposerClient::Transaction().apply(true);
 
-        captureArgs.useRGBColorSpace = true;
+        captureArgs.dataspace = ui::Dataspace::V0_SRGB;
         const sp<SyncScreenCaptureListener> captureListener = new SyncScreenCaptureListener();
         status_t status = sf->captureDisplay(captureArgs, captureListener);
 
@@ -67,7 +67,7 @@
         const auto sf = ComposerService::getComposerService();
         SurfaceComposerClient::Transaction().apply(true);
 
-        captureArgs.useRGBColorSpace = true;
+        captureArgs.dataspace = ui::Dataspace::V0_SRGB;
         const sp<SyncScreenCaptureListener> captureListener = new SyncScreenCaptureListener();
         status_t status = sf->captureLayers(captureArgs, captureListener);
         if (status != NO_ERROR) {