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-rw-r--r--libs/renderengine/skia/SkiaGLRenderEngine.cpp138
-rw-r--r--libs/renderengine/skia/SkiaGLRenderEngine.h7
2 files changed, 88 insertions, 57 deletions
diff --git a/libs/renderengine/skia/SkiaGLRenderEngine.cpp b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
index 327b04c699..9f40011411 100644
--- a/libs/renderengine/skia/SkiaGLRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaGLRenderEngine.cpp
@@ -454,11 +454,6 @@ static bool needsToneMapping(ui::Dataspace sourceDataspace, ui::Dataspace destin
sourceTransfer != destTransfer;
}
-static bool needsLinearEffect(const mat4& colorTransform, ui::Dataspace sourceDataspace,
- ui::Dataspace destinationDataspace) {
- return colorTransform != mat4() || needsToneMapping(sourceDataspace, destinationDataspace);
-}
-
void SkiaGLRenderEngine::cacheExternalTextureBuffer(const sp<GraphicBuffer>& buffer) {
// Only run this if RE is running on its own thread. This way the access to GL
// operations is guaranteed to be happening on the same thread.
@@ -491,14 +486,19 @@ void SkiaGLRenderEngine::unbindExternalTextureBuffer(uint64_t bufferId) {
sk_sp<SkShader> SkiaGLRenderEngine::createRuntimeEffectShader(sk_sp<SkShader> shader,
const LayerSettings* layer,
const DisplaySettings& display,
- bool undoPremultipliedAlpha) {
+ bool undoPremultipliedAlpha,
+ bool requiresLinearEffect) {
if (layer->stretchEffect.hasEffect()) {
// TODO: Implement
}
- if (mUseColorManagement &&
- needsLinearEffect(layer->colorTransform, layer->sourceDataspace, display.outputDataspace)) {
- LinearEffect effect = LinearEffect{.inputDataspace = layer->sourceDataspace,
- .outputDataspace = display.outputDataspace,
+ if (requiresLinearEffect) {
+ const ui::Dataspace inputDataspace =
+ mUseColorManagement ? layer->sourceDataspace : ui::Dataspace::UNKNOWN;
+ const ui::Dataspace outputDataspace =
+ mUseColorManagement ? display.outputDataspace : ui::Dataspace::UNKNOWN;
+
+ LinearEffect effect = LinearEffect{.inputDataspace = inputDataspace,
+ .outputDataspace = outputDataspace,
.undoPremultipliedAlpha = undoPremultipliedAlpha};
auto effectIter = mRuntimeEffects.find(effect);
@@ -556,6 +556,26 @@ void SkiaGLRenderEngine::initCanvas(SkCanvas* canvas, const DisplaySettings& dis
canvas->translate(-display.clip.left, -display.clip.top);
}
+class AutoSaveRestore {
+public:
+ AutoSaveRestore(SkCanvas* canvas) : mCanvas(canvas) { mSaveCount = canvas->save(); }
+ ~AutoSaveRestore() { restore(); }
+ void replace(SkCanvas* canvas) {
+ mCanvas = canvas;
+ mSaveCount = canvas->save();
+ }
+ void restore() {
+ if (mCanvas) {
+ mCanvas->restoreToCount(mSaveCount);
+ mCanvas = nullptr;
+ }
+ }
+
+private:
+ SkCanvas* mCanvas;
+ int mSaveCount;
+};
+
status_t SkiaGLRenderEngine::drawLayers(const DisplaySettings& display,
const std::vector<const LayerSettings*>& layers,
const sp<GraphicBuffer>& buffer,
@@ -610,11 +630,10 @@ status_t SkiaGLRenderEngine::drawLayers(const DisplaySettings& display,
}
}
+ const ui::Dataspace dstDataspace =
+ mUseColorManagement ? display.outputDataspace : ui::Dataspace::UNKNOWN;
sk_sp<SkSurface> dstSurface =
- surfaceTextureRef->getTexture()->getOrCreateSurface(mUseColorManagement
- ? display.outputDataspace
- : ui::Dataspace::UNKNOWN,
- grContext.get());
+ surfaceTextureRef->getTexture()->getOrCreateSurface(dstDataspace, grContext.get());
SkCanvas* dstCanvas = mCapture->tryCapture(dstSurface.get());
if (dstCanvas == nullptr) {
@@ -650,7 +669,7 @@ status_t SkiaGLRenderEngine::drawLayers(const DisplaySettings& display,
}
}
- canvas->save();
+ AutoSaveRestore surfaceAutoSaveRestore(canvas);
// Clear the entire canvas with a transparent black to prevent ghost images.
canvas->clear(SK_ColorTRANSPARENT);
initCanvas(canvas, display);
@@ -671,13 +690,18 @@ status_t SkiaGLRenderEngine::drawLayers(const DisplaySettings& display,
SkPaint paint;
sk_sp<SkShader> shader =
SkShaders::Color(SkColor4f{.fR = 0., .fG = 0., .fB = 0., .fA = 1.0},
- toSkColorSpace(mUseColorManagement ? display.outputDataspace
- : ui::Dataspace::UNKNOWN));
+ toSkColorSpace(dstDataspace));
paint.setShader(shader);
clearRegion.setRects(skRects, numRects);
canvas->drawRegion(clearRegion, paint);
}
+ // setup color filter if necessary
+ sk_sp<SkColorFilter> displayColorTransform;
+ if (display.colorTransform != mat4()) {
+ displayColorTransform = SkColorFilters::Matrix(toSkColorMatrix(display.colorTransform));
+ }
+
for (const auto& layer : layers) {
ATRACE_NAME("DrawLayer");
@@ -705,7 +729,7 @@ status_t SkiaGLRenderEngine::drawLayers(const DisplaySettings& display,
// assign dstCanvas to canvas and ensure that the canvas state is up to date
canvas = dstCanvas;
- canvas->save();
+ surfaceAutoSaveRestore.replace(canvas);
initCanvas(canvas, display);
LOG_ALWAYS_FATAL_IF(activeSurface->getCanvas()->getSaveCount() !=
@@ -717,7 +741,7 @@ status_t SkiaGLRenderEngine::drawLayers(const DisplaySettings& display,
activeSurface = dstSurface;
}
- canvas->save();
+ SkAutoCanvasRestore layerAutoSaveRestore(canvas, true);
if (CC_UNLIKELY(mCapture->isCaptureRunning())) {
// Record the name of the layer if the capture is running.
std::stringstream layerSettings;
@@ -765,15 +789,34 @@ status_t SkiaGLRenderEngine::drawLayers(const DisplaySettings& display,
}
}
- const ui::Dataspace targetDataspace = mUseColorManagement
- ? (needsLinearEffect(layer->colorTransform, layer->sourceDataspace,
- display.outputDataspace)
- // If we need to map to linear space, then mark the source image with the
- // same colorspace as the destination surface so that Skia's color
- // management is a no-op.
- ? display.outputDataspace
- : layer->sourceDataspace)
- : ui::Dataspace::UNKNOWN;
+ // Shadows are assumed to live only on their own layer - it's not valid
+ // to draw the boundary rectangles when there is already a caster shadow
+ // TODO(b/175915334): consider relaxing this restriction to enable more flexible
+ // composition - using a well-defined invalid color is long-term less error-prone.
+ if (layer->shadow.length > 0) {
+ const auto rect = layer->geometry.roundedCornersRadius > 0
+ ? getSkRect(layer->geometry.roundedCornersCrop)
+ : bounds;
+ drawShadow(canvas, rect, layer->geometry.roundedCornersRadius, layer->shadow);
+ continue;
+ }
+
+ const bool requiresLinearEffect = layer->colorTransform != mat4() ||
+ (mUseColorManagement &&
+ needsToneMapping(layer->sourceDataspace, display.outputDataspace));
+
+ // quick abort from drawing the remaining portion of the layer
+ if (layer->alpha == 0 && !requiresLinearEffect &&
+ (!displayColorTransform || displayColorTransform->isAlphaUnchanged())) {
+ continue;
+ }
+
+ // If we need to map to linear space or color management is disabled, then mark the source
+ // image with the same colorspace as the destination surface so that Skia's color
+ // management is a no-op.
+ const ui::Dataspace layerDataspace = (!mUseColorManagement || requiresLinearEffect)
+ ? dstDataspace
+ : layer->sourceDataspace;
SkPaint paint;
if (layer->source.buffer.buffer) {
@@ -792,7 +835,7 @@ status_t SkiaGLRenderEngine::drawLayers(const DisplaySettings& display,
}
sk_sp<SkImage> image =
- imageTextureRef->getTexture()->makeImage(targetDataspace,
+ imageTextureRef->getTexture()->makeImage(layerDataspace,
item.usePremultipliedAlpha
? kPremul_SkAlphaType
: kUnpremul_SkAlphaType,
@@ -848,12 +891,12 @@ status_t SkiaGLRenderEngine::drawLayers(const DisplaySettings& display,
if (item.isOpaque) {
shader = SkShaders::Blend(SkBlendMode::kPlus, shader,
SkShaders::Color(SkColors::kBlack,
- toSkColorSpace(targetDataspace)));
+ toSkColorSpace(layerDataspace)));
}
- paint.setShader(
- createRuntimeEffectShader(shader, layer, display,
- !item.isOpaque && item.usePremultipliedAlpha));
+ paint.setShader(createRuntimeEffectShader(shader, layer, display,
+ !item.isOpaque && item.usePremultipliedAlpha,
+ requiresLinearEffect));
paint.setAlphaf(layer->alpha);
} else {
ATRACE_NAME("DrawColor");
@@ -862,35 +905,22 @@ status_t SkiaGLRenderEngine::drawLayers(const DisplaySettings& display,
.fG = color.g,
.fB = color.b,
.fA = layer->alpha},
- toSkColorSpace(targetDataspace));
+ toSkColorSpace(layerDataspace));
paint.setShader(createRuntimeEffectShader(shader, layer, display,
- /* undoPremultipliedAlpha */ false));
+ /* undoPremultipliedAlpha */ false,
+ requiresLinearEffect));
}
- sk_sp<SkColorFilter> filter =
- SkColorFilters::Matrix(toSkColorMatrix(display.colorTransform));
-
- paint.setColorFilter(filter);
+ paint.setColorFilter(displayColorTransform);
- if (layer->shadow.length > 0) {
- const auto rect = layer->geometry.roundedCornersRadius > 0
- ? getSkRect(layer->geometry.roundedCornersCrop)
- : bounds;
- drawShadow(canvas, rect, layer->geometry.roundedCornersRadius, layer->shadow);
+ if (layer->geometry.roundedCornersRadius > 0) {
+ paint.setAntiAlias(true);
+ canvas->drawRRect(getRoundedRect(layer), paint);
} else {
- // Shadows are assumed to live only on their own layer - it's not valid
- // to draw the boundary retangles when there is already a caster shadow
- // TODO(b/175915334): consider relaxing this restriction to enable more flexible
- // composition - using a well-defined invalid color is long-term less error-prone.
- // Push the clipRRect onto the clip stack. Draw the image. Pop the clip.
- if (layer->geometry.roundedCornersRadius > 0) {
- canvas->clipRRect(getRoundedRect(layer), true);
- }
canvas->drawRect(bounds, paint);
}
- canvas->restore();
}
- canvas->restore();
+ surfaceAutoSaveRestore.restore();
mCapture->endCapture();
{
ATRACE_NAME("flush surface");
diff --git a/libs/renderengine/skia/SkiaGLRenderEngine.h b/libs/renderengine/skia/SkiaGLRenderEngine.h
index 5779ae679b..ad26206a8f 100644
--- a/libs/renderengine/skia/SkiaGLRenderEngine.h
+++ b/libs/renderengine/skia/SkiaGLRenderEngine.h
@@ -92,11 +92,12 @@ private:
void initCanvas(SkCanvas* canvas, const DisplaySettings& display);
void drawShadow(SkCanvas* canvas, const SkRect& casterRect, float casterCornerRadius,
const ShadowSettings& shadowSettings);
- // If mUseColorManagement is correct and layer needsLinearEffect, it returns a linear runtime
- // shader. Otherwise it returns the input shader.
+ // If requiresLinearEffect is true or the layer has a stretchEffect a new shader is returned.
+ // Otherwise it returns the input shader.
sk_sp<SkShader> createRuntimeEffectShader(sk_sp<SkShader> shader, const LayerSettings* layer,
const DisplaySettings& display,
- bool undoPremultipliedAlpha);
+ bool undoPremultipliedAlpha,
+ bool requiresLinearEffect);
EGLDisplay mEGLDisplay;
EGLContext mEGLContext;
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-12-27 01:53:13 +0000