display : Add support for copybit composition
This change add support for copybit composition in display HAL
for MDP3 targets.
Change-Id: I9bc8e40f624b0760f4faa223cb03a13695611bb3
Acked-by: Sravan Kumar D.V.N <sravank1@codeaurora.org>
diff --git a/libhwcomposer/hwc_copybit.h b/libhwcomposer/hwc_copybit.h
new file mode 100644
index 0000000..adf088b
--- /dev/null
+++ b/libhwcomposer/hwc_copybit.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * Copyright (C) 2012, Code Aurora Forum. All rights reserved.
+ *
+ * Not a Contribution, Apache license notifications and license are retained
+ * for attribution purposes only.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef HWC_COPYBIT_H
+#define HWC_COPYBIT_H
+#include "hwc_utils.h"
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <gralloc_priv.h>
+#include <gr.h>
+#include <dlfcn.h>
+
+#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
+#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
+
+namespace qhwc {
+//Feature for using Copybit to display RGB layers.
+class CopyBit {
+public:
+ //Sets up members and prepares copybit if conditions are met
+ static bool prepare(hwc_context_t *ctx, hwc_layer_list_t *list);
+ //Draws layer if the layer is set for copybit in prepare
+ static bool draw(hwc_context_t *ctx, hwc_layer_list_t *list, EGLDisplay dpy,
+ EGLSurface sur);
+ //Receives data from hwc
+ static void setStats(int yuvCount, int yuvLayerIndex, bool isYuvLayerSkip);
+
+ static void updateEglHandles(void*);
+ static int drawLayerUsingCopybit(hwc_context_t *dev, hwc_layer_t *layer,
+ EGLDisplay dpy, EGLSurface surface,
+ functype_eglGetRenderBufferANDROID& LINK_eglGetRenderBufferANDROID,
+ functype_eglGetCurrentSurface LINK_eglGetCurrentSurface);
+ static bool canUseCopybit(hwc_context_t* ctx, const hwc_layer_list_t* list,
+ const int numYUVBuffers);
+ static void closeEglLib();
+ static void openEglLibAndGethandle();
+private:
+ //Marks layer flags if this feature is used
+ static void markFlags(hwc_layer_t *layer);
+ //returns yuv count
+ static int getYuvCount();
+
+ //Number of yuv layers in this drawing round
+ static int sYuvCount;
+ //Index of YUV layer, relevant only if count is 1
+ static int sYuvLayerIndex;
+ //Flags if a yuv layer is animating or below something that is animating
+ static bool sIsLayerSkip;
+ //Flags if this feature is on.
+ static bool sIsModeOn;
+ //handle for adreno lib
+ static void* egl_lib;
+
+ static functype_eglGetRenderBufferANDROID LINK_eglGetRenderBufferANDROID;
+ static functype_eglGetCurrentSurface LINK_eglGetCurrentSurface;
+
+ static void getLayerResolution(const hwc_layer_t* layer, int& width,
+ int& height);
+
+};
+
+inline void CopyBit::setStats(int yuvCount, int yuvLayerIndex,
+ bool isYuvLayerSkip) {
+ sYuvCount = yuvCount;
+ sYuvLayerIndex = yuvLayerIndex;
+ sIsLayerSkip = isYuvLayerSkip;
+}
+
+inline int CopyBit::getYuvCount() { return sYuvCount; }
+
+
+}; //namespace qhwc
+
+#endif //HWC_COPYBIT_H