[HWUI] Implement legacy color mode.

Previously, HWUI always produces SRGB buffers. We introduced new APIs for
SurfaceFlinger, a.k.a. the composer service to return to composition preference
for data space, and pixel format. This patch makes HWUI query composition
preference from composer service, and creates the corresponding EGL surface
with the correct attributes.

In legacy mode, HWUI will take the pixel value from source color space, and
interpret it as pixel value in destination color space.

BUG: 111436479
BUG: 113530681
Test: Build, flash, boot and check dumpsys SurfaceFlinger
Change-Id: I64562d5ea6f653076c8b448feb56b5e0624bc81c

1 files changed, 12 insertions, 19 deletions

diff --git a/libs/hwui/pipeline/skia/SkiaPipeline.cpp b/libs/hwui/pipeline/skia/SkiaPipeline.cpp
index 988981d65775..7f8abb8afa97 100644
--- a/libs/hwui/pipeline/skia/SkiaPipeline.cpp
+++ b/libs/hwui/pipeline/skia/SkiaPipeline.cpp
@@ -83,16 +83,15 @@ void SkiaPipeline::onPrepareTree() {
 
 void SkiaPipeline::renderLayers(const LightGeometry& lightGeometry,
                                 LayerUpdateQueue* layerUpdateQueue, bool opaque,
-                                bool wideColorGamut, const LightInfo& lightInfo) {
+                                const LightInfo& lightInfo) {
     updateLighting(lightGeometry, lightInfo);
     ATRACE_NAME("draw layers");
     renderVectorDrawableCache();
-    renderLayersImpl(*layerUpdateQueue, opaque, wideColorGamut);
+    renderLayersImpl(*layerUpdateQueue, opaque);
     layerUpdateQueue->clear();
 }
 
-void SkiaPipeline::renderLayersImpl(const LayerUpdateQueue& layers, bool opaque,
-                                    bool wideColorGamut) {
+void SkiaPipeline::renderLayersImpl(const LayerUpdateQueue& layers, bool opaque) {
     sk_sp<GrContext> cachedContext;
 
     // Render all layers that need to be updated, in order.
@@ -161,7 +160,7 @@ void SkiaPipeline::renderLayersImpl(const LayerUpdateQueue& layers, bool opaque,
 }
 
 bool SkiaPipeline::createOrUpdateLayer(RenderNode* node, const DamageAccumulator& damageAccumulator,
-                                       bool wideColorGamut, ErrorHandler* errorHandler) {
+                                       ErrorHandler* errorHandler) {
     // compute the size of the surface (i.e. texture) to be allocated for this layer
     const int surfaceWidth = ceilf(node->getWidth() / float(LAYER_SIZE)) * LAYER_SIZE;
     const int surfaceHeight = ceilf(node->getHeight() / float(LAYER_SIZE)) * LAYER_SIZE;
@@ -169,12 +168,8 @@ bool SkiaPipeline::createOrUpdateLayer(RenderNode* node, const DamageAccumulator
     SkSurface* layer = node->getLayerSurface();
     if (!layer || layer->width() != surfaceWidth || layer->height() != surfaceHeight) {
         SkImageInfo info;
-        if (wideColorGamut) {
-            info = SkImageInfo::Make(surfaceWidth, surfaceHeight, kRGBA_F16_SkColorType,
-                                     kPremul_SkAlphaType);
-        } else {
-            info = SkImageInfo::MakeN32Premul(surfaceWidth, surfaceHeight);
-        }
+        info = SkImageInfo::Make(surfaceWidth, surfaceHeight, getSurfaceColorType(),
+                                 kPremul_SkAlphaType);
         SkSurfaceProps props(0, kUnknown_SkPixelGeometry);
         SkASSERT(mRenderThread.getGrContext() != nullptr);
         node->setLayerSurface(SkSurface::MakeRenderTarget(mRenderThread.getGrContext(),
@@ -321,19 +316,18 @@ void SkiaPipeline::endCapture(SkSurface* surface) {
 
 void SkiaPipeline::renderFrame(const LayerUpdateQueue& layers, const SkRect& clip,
                                const std::vector<sp<RenderNode>>& nodes, bool opaque,
-                               bool wideColorGamut, const Rect& contentDrawBounds,
-                               sk_sp<SkSurface> surface) {
+                               const Rect& contentDrawBounds, sk_sp<SkSurface> surface) {
     renderVectorDrawableCache();
 
     // draw all layers up front
-    renderLayersImpl(layers, opaque, wideColorGamut);
+    renderLayersImpl(layers, opaque);
 
     // initialize the canvas for the current frame, that might be a recording canvas if SKP
     // capture is enabled.
     std::unique_ptr<SkPictureRecorder> recorder;
     SkCanvas* canvas = tryCapture(surface.get());
 
-    renderFrameImpl(layers, clip, nodes, opaque, wideColorGamut, contentDrawBounds, canvas);
+    renderFrameImpl(layers, clip, nodes, opaque, contentDrawBounds, canvas);
 
     endCapture(surface.get());
 
@@ -354,13 +348,12 @@ static Rect nodeBounds(RenderNode& node) {
 
 void SkiaPipeline::renderFrameImpl(const LayerUpdateQueue& layers, const SkRect& clip,
                                    const std::vector<sp<RenderNode>>& nodes, bool opaque,
-                                   bool wideColorGamut, const Rect& contentDrawBounds,
-                                   SkCanvas* canvas) {
+                                   const Rect& contentDrawBounds, SkCanvas* canvas) {
     SkAutoCanvasRestore saver(canvas, true);
     canvas->androidFramework_setDeviceClipRestriction(clip.roundOut());
 
     // STOPSHIP: Revert, temporary workaround to clear always F16 frame buffer for b/74976293
-    if (!opaque || wideColorGamut) {
+    if (!opaque || getSurfaceColorType() == kRGBA_F16_SkColorType) {
         canvas->clear(SK_ColorTRANSPARENT);
     }
 
@@ -493,7 +486,7 @@ void SkiaPipeline::renderOverdraw(const LayerUpdateQueue& layers, const SkRect&
     // each time a pixel would have been drawn.
     // Pass true for opaque so we skip the clear - the overdrawCanvas is already zero
     // initialized.
-    renderFrameImpl(layers, clip, nodes, true, false, contentDrawBounds, &overdrawCanvas);
+    renderFrameImpl(layers, clip, nodes, true, contentDrawBounds, &overdrawCanvas);
     sk_sp<SkImage> counts = offscreen->makeImageSnapshot();
 
     // Draw overdraw colors to the canvas.  The color filter will convert counts to colors.