hwc: Add vpu client
Stub implementation of VPU in HWC.
This commit passes through binder calls from HWC
to the VPU library. It also has stub prepare/draw calls
in the VPU client object which can be used to configure
VPU in the composition cycle.
Change-Id: I2606f2884e870448d29ef26e02faac92e157e2c6
diff --git a/libhwcomposer/hwc_vpuclient.cpp b/libhwcomposer/hwc_vpuclient.cpp
new file mode 100644
index 0000000..bdfeae5
--- /dev/null
+++ b/libhwcomposer/hwc_vpuclient.cpp
@@ -0,0 +1,88 @@
+/*
+* Copyright (c) 2013 The Linux Foundation. All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above
+* copyright notice, this list of conditions and the following
+* disclaimer in the documentation and/or other materials provided
+* with the distribution.
+* * Neither the name of The Linux Foundation. nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <dlfcn.h>
+#include "hwc_vpuclient.h"
+#include "hwc_utils.h"
+#include <vpu/vpu.h>
+
+
+using namespace vpu;
+namespace qhwc {
+
+VPUClient::VPUClient()
+{
+ mVPULib = dlopen("libvpu.so", RTLD_NOW);
+ VPU* (*init)();
+ *(void **) &init = dlsym(mVPULib, "getObject");
+ if(init)
+ mVPU = init();
+ else
+ mVPU = NULL;
+}
+
+VPUClient::~VPUClient()
+{
+ void (*destroy) (VPU*);
+ *(void **) &destroy = dlsym(mVPULib, "deleteObject");
+ dlclose(mVPULib);
+}
+
+int VPUClient::prepare(hwc_context_t *ctx,
+ hwc_display_contents_1_t* list)
+{
+ int err = 0;
+ if(!mVPU)
+ return err;
+ // * Check VPU status
+ // * Check session availability
+ // * Other individual checks
+ // Do not pass hwc context/list
+ // Mark buffers to be drawn for VPU
+ return err;
+}
+
+int VPUClient::draw(hwc_context_t *ctx,
+ hwc_display_contents_1_t* list)
+{
+ int err = 0;
+ if(!mVPU)
+ return err;
+ // Queue buffers to VPU
+ return err;
+}
+
+int VPUClient::processCommand(uint32_t command, uint32_t setting)
+{
+ if(!mVPU)
+ return 0;
+ return mVPU->processCommand(command, setting);
+}
+
+}; // namespace qhwc