am b2620900: Merge "don\'t reallocate the mesh each time we use it" into klp-dev (32ca79c8) · Commits · e / os / android_frameworks_native

services/surfaceflinger/Layer.cpp

+20 −21

Original line number	Diff line number	Diff line
		@@ -74,6 +74,7 @@ Layer::Layer(SurfaceFlinger* flinger, const sp<Client>& client,
		mFrameLatencyNeeded(false),
		mFiltering(false),
		mNeedsFiltering(false),
		mMesh(Mesh::TRIANGLE_FAN, 4, 2, 2),
		mSecure(false),
		mProtectedByApp(false),
		mHasSurface(false),
		@@ -494,9 +495,8 @@ void Layer::onDraw(const sp<const DisplayDevice>& hw, const Region& clip) const
		void Layer::clearWithOpenGL(const sp<const DisplayDevice>& hw, const Region& clip,
		float red, float green, float blue, float alpha) const
		{
		Mesh mesh(Mesh::TRIANGLE_FAN, 4, 2);
		computeGeometry(hw, mesh);
		mFlinger->getRenderEngine().fillWithColor(mesh, red, green, blue, alpha);
		computeGeometry(hw, mMesh);
		mFlinger->getRenderEngine().fillWithColor(mMesh, red, green, blue, alpha);
		}

		void Layer::clearWithOpenGL(
		@@ -509,8 +509,7 @@ void Layer::drawWithOpenGL(
		const uint32_t fbHeight = hw->getHeight();
		const State& s(getDrawingState());

		Mesh mesh(Mesh::TRIANGLE_FAN, 4, 2, 2);
		computeGeometry(hw, mesh);
		computeGeometry(hw, mMesh);

		/*
		* NOTE: the way we compute the texture coordinates here produces
		@@ -535,20 +534,19 @@ void Layer::drawWithOpenGL(

		// TODO: we probably want to generate the texture coords with the mesh
		// here we assume that we only have 4 vertices
		size_t stride = mesh.getStride();
		float* base = mesh.getTexCoords();
		base[stride*0 + 0] = left;
		base[stride*0 + 1] = 1.0f - top;
		base[stride*1 + 0] = left;
		base[stride*1 + 1] = 1.0f - bottom;
		base[stride*2 + 0] = right;
		base[stride*2 + 1] = 1.0f - bottom;
		base[stride*3 + 0] = right;
		base[stride*3 + 1] = 1.0f - top;
		Mesh::VertexArray texCoords(mMesh.getTexCoordArray());
		texCoords[0].s = left;
		texCoords[0].t = 1.0f - top;
		texCoords[1].s = left;
		texCoords[1].t = 1.0f - bottom;
		texCoords[2].s = right;
		texCoords[2].t = 1.0f - bottom;
		texCoords[3].s = right;
		texCoords[3].t = 1.0f - top;

		RenderEngine& engine(mFlinger->getRenderEngine());
		engine.setupLayerBlending(mPremultipliedAlpha, isOpaque(), s.alpha);
		engine.drawMesh(mesh);
		engine.drawMesh(mMesh);
		engine.disableBlending();
		}

		@@ -596,12 +594,13 @@ void Layer::computeGeometry(const sp<const DisplayDevice>& hw, Mesh& mesh) const
		// subtract the transparent region and snap to the bounds
		win = reduce(win, s.activeTransparentRegion);

		tr.transform(mesh[0], win.left, win.top);
		tr.transform(mesh[1], win.left, win.bottom);
		tr.transform(mesh[2], win.right, win.bottom);
		tr.transform(mesh[3], win.right, win.top);
		Mesh::VertexArray position(mesh.getPositionArray());
		tr.transform(position[0], win.left, win.top);
		tr.transform(position[1], win.left, win.bottom);
		tr.transform(position[2], win.right, win.bottom);
		tr.transform(position[3], win.right, win.top);
		for (size_t i=0 ; i<4 ; i++) {
		mesh[i][1] = hw_h - mesh[i][1];
		position[i].y = hw_h - position[i].y;
		}
		}

services/surfaceflinger/Layer.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -357,6 +357,8 @@ private:
		bool mFiltering;
		// Whether filtering is needed b/c of the drawingstate
		bool mNeedsFiltering;
		// The mesh used to draw the layer in GLES composition mode
		mutable Mesh mMesh;

		// page-flip thread (currently main thread)
		bool mSecure; // no screenshots

services/surfaceflinger/RenderEngine/GLES11RenderEngine.cpp

+2 −2

Original line number	Diff line number	Diff line
		@@ -192,7 +192,7 @@ void GLES11RenderEngine::fillWithColor(const Mesh& mesh, float r, float g, float
		glVertexPointer(mesh.getVertexSize(),
		GL_FLOAT,
		mesh.getByteStride(),
		mesh.getVertices());
		mesh.getPositions());

		glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount());
		}
		@@ -209,7 +209,7 @@ void GLES11RenderEngine::drawMesh(const Mesh& mesh) {
		glVertexPointer(mesh.getVertexSize(),
		GL_FLOAT,
		mesh.getByteStride(),
		mesh.getVertices());
		mesh.getPositions());

		glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount());

services/surfaceflinger/RenderEngine/GLES20RenderEngine.cpp

+2 −2

Original line number	Diff line number	Diff line
		@@ -168,7 +168,7 @@ void GLES20RenderEngine::fillWithColor(const Mesh& mesh, float r, float g, float
		mesh.getVertexSize(),
		GL_FLOAT, GL_FALSE,
		mesh.getByteStride(),
		mesh.getVertices());
		mesh.getPositions());

		glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount());
		}
		@@ -190,7 +190,7 @@ void GLES20RenderEngine::drawMesh(const Mesh& mesh) {
		mesh.getVertexSize(),
		GL_FLOAT, GL_FALSE,
		mesh.getByteStride(),
		mesh.getVertices());
		mesh.getPositions());

		glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount());

services/surfaceflinger/RenderEngine/Mesh.cpp

+2 −10

Original line number	Diff line number	Diff line
		@@ -30,23 +30,15 @@ Mesh::~Mesh() {
		delete [] mVertices;
		}

		float const* Mesh::operator[](size_t index) const {
		return &mVertices[index * mStride];
		}

		float* Mesh::operator[](size_t index) {
		return &mVertices[index * mStride];
		}

		Mesh::Primitive Mesh::getPrimitive() const {
		return mPrimitive;
		}


		float const* Mesh::getVertices() const {
		float const* Mesh::getPositions() const {
		return mVertices;
		}
		float* Mesh::getVertices() {
		float* Mesh::getPositions() {
		return mVertices;
		}