499 lines
17 KiB
C
499 lines
17 KiB
C
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/*
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* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Code Aurora Forum, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define EXTDEBUG 0
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class ExtDispOnly {
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enum ExternalOnlyMode {
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EXT_ONLY_MODE_OFF = 0,
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EXT_ONLY_MODE_ON = 1,
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};
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enum {
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MAX_EXT_ONLY_LAYERS = 2,
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};
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public:
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/* Initialize, allocate data members */
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static void init();
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/* Deallocate data members */
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static void destroy();
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/* Closes all the overlay channels */
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static void close();
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/* Prepare overlay and configures mdp pipes */
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static int prepare(hwc_context_t *ctx, hwc_layer_t *layer, int index,
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bool waitForVsync);
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/* Returns status of external-only mode */
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static bool isModeOn();
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/* Updates stats and pipe config related to external_only and external_block layers
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* If we are staring or stopping this mode, update default mirroring.
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*/
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static int update(hwc_context_t* ctx, hwc_layer_list_t* list);
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/* Stores the locked handle for the buffer that was successfully queued */
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static void storeLockedHandles(hwc_layer_list_t* list);
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/* Queue buffers to mdp for display */
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static int draw(hwc_context_t *ctx, hwc_layer_list_t *list);
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private:
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/* Locks a buffer and marks it as locked */
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static void lockBuffer(native_handle_t *hnd);
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/* Unlocks a buffer and clears the locked flag */
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static void unlockBuffer(native_handle_t *hnd);
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/* Unlocks buffers queued in previous round (and displayed by now)
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* Clears the handle cache.
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*/
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static void unlockPreviousBuffers();
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/* Closes the a range of overlay channels */
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static void closeRange(int start);
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/* Start default external mirroring */
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static void startDefaultMirror(hwc_context_t* ctx);
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/* Stop default external mirroring */
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static void stopDefaultMirror(hwc_context_t* ctx);
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/* Checks if external-only mode is starting */
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static bool isExtModeStarting(hwc_context_t* ctx, const int&
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numExtLayers);
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/* Checks if external-only mode is stopping */
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static bool isExtModeStopping(hwc_context_t* ctx, const int&
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numExtLayers);
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//Data members
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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static overlay::OverlayUI* mOvExtUI[MAX_EXT_ONLY_LAYERS];
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static native_handle_t* previousExtHandle[MAX_EXT_ONLY_LAYERS];
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static ExternalOnlyMode eExtOnlyMode;
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static int numExtOnlyLayers;
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static bool skipLayerPresent;
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static bool blockLayerPresent;
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static int blockLayerIndex;
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#endif
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}; //class ExtDispOnly
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void ExtDispOnly::lockBuffer(native_handle_t *hnd) {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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private_handle_t* phnd = (private_handle_t*)hnd;
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//Genlock is reference counted and recursive.
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//Do not accidently lock a locked buffer.
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if(phnd && (phnd->flags & private_handle_t::PRIV_FLAGS_HWC_LOCK)) {
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LOGE_IF(EXTDEBUG, "%s: handle %p already locked", __func__, phnd);
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return;
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}
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if (GENLOCK_FAILURE == genlock_lock_buffer(hnd, GENLOCK_READ_LOCK,
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GENLOCK_MAX_TIMEOUT)) {
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LOGE("%s: genlock_lock_buffer(READ) failed", __func__);
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return;
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}
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phnd->flags |= private_handle_t::PRIV_FLAGS_HWC_LOCK;
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LOGE_IF(EXTDEBUG, "%s: locked handle = %p", __func__, hnd);
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#endif
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}
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void ExtDispOnly::unlockBuffer(native_handle_t *hnd) {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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//Check if buffer is still around
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if(private_handle_t::validate(hnd) != 0) {
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LOGE("%s Handle already deallocated", __func__);
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return;
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}
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private_handle_t* phnd = (private_handle_t*)hnd;
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//Check if buffer was locked in the first place
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if((phnd->flags & private_handle_t::PRIV_FLAGS_HWC_LOCK) == 0) {
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LOGE("%s Handle not locked, cannot unlock", __func__);
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return;
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}
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//Actually try to unlock
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if (GENLOCK_FAILURE == genlock_unlock_buffer(hnd)) {
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LOGE("%s: genlock_unlock_buffer failed", __func__);
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return;
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}
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//Clear the locked flag
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phnd->flags &= ~private_handle_t::PRIV_FLAGS_HWC_LOCK;
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LOGE_IF(EXTDEBUG, "%s: unlocked handle = %p", __func__, hnd);
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#endif
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}
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void ExtDispOnly::unlockPreviousBuffers() {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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for(int i = 0; (i < MAX_EXT_ONLY_LAYERS) && previousExtHandle[i]; i++) {
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LOGE_IF(EXTDEBUG, "%s", __func__);
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ExtDispOnly::unlockBuffer(previousExtHandle[i]);
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previousExtHandle[i] = NULL;
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}
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#endif
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}
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void ExtDispOnly::init() {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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for(int i = 0; i < MAX_EXT_ONLY_LAYERS; i++) {
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mOvExtUI[i] = new overlay::OverlayUI();
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previousExtHandle[i] = NULL;
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}
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eExtOnlyMode = EXT_ONLY_MODE_OFF;
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numExtOnlyLayers = 0;
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skipLayerPresent = false;
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blockLayerPresent = false;
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blockLayerIndex = -1;
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LOGE_IF(EXTDEBUG, "%s", __func__);
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#endif
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}
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void ExtDispOnly::destroy() {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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for(int i = 0; i < MAX_EXT_ONLY_LAYERS; i++) {
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delete mOvExtUI[i];
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}
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#endif
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}
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void ExtDispOnly::closeRange(int start) {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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for (int index = start; index < MAX_EXT_ONLY_LAYERS; index++) {
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if(previousExtHandle[index]) {
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LOGE_IF(EXTDEBUG, "%s", __func__);
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ExtDispOnly::unlockBuffer(previousExtHandle[index]);
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previousExtHandle[index] = NULL;
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}
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mOvExtUI[index]->closeChannel();
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}
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#endif
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}
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void inline ExtDispOnly::close() {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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closeRange(0);
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#endif
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}
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int ExtDispOnly::prepare(hwc_context_t *ctx, hwc_layer_t *layer, int index,
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bool waitForVsync) {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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if(ctx->mHDMIEnabled == EXT_DISPLAY_OFF ||
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ctx->pendingHDMI == true)
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return -1;
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if (ctx && mOvExtUI[index]) {
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private_hwc_module_t* hwcModule = reinterpret_cast<
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private_hwc_module_t*>(ctx->device.common.module);
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if (!hwcModule) {
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LOGE("%s null module", __func__);
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return -1;
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}
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private_handle_t *hnd = (private_handle_t *)layer->handle;
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if(!hnd) {
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LOGE("%s handle null", __func__);
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return -1;
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}
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overlay::OverlayUI *ovUI = mOvExtUI[index];
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int ret = 0;
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//int orientation = layer->transform;
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//Assuming layers will always be source landscape
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const int orientation = 0;
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overlay_buffer_info info;
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hwc_rect_t sourceCrop = layer->sourceCrop;
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info.width = sourceCrop.right - sourceCrop.left;
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info.height = sourceCrop.bottom - sourceCrop.top;
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info.format = hnd->format;
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info.size = hnd->size;
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info.secure = false;
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const int fbnum = ctx->mHDMIEnabled; //HDMI or WFD
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const bool isFg = false;
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//Just to differentiate zorders for different layers
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const int zorder = index;
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const bool isVGPipe = true;
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ovUI->setSource(info, orientation);
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ovUI->setDisplayParams(fbnum, waitForVsync, isFg, zorder, isVGPipe);
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const int fbWidth = ovUI->getFBWidth();
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const int fbHeight = ovUI->getFBHeight();
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ovUI->setPosition(0, 0, fbWidth, fbHeight);
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if(ovUI->commit() != overlay::NO_ERROR) {
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LOGE("%s: Overlay Commit failed", __func__);
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return -1;
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}
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}
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LOGE_IF(EXTDEBUG, "%s", __func__);
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#endif
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return overlay::NO_ERROR;
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}
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inline void ExtDispOnly::startDefaultMirror(hwc_context_t* ctx) {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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hwc_composer_device_t* dev = (hwc_composer_device_t*) ctx;
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private_hwc_module_t* hwcModule =
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reinterpret_cast<private_hwc_module_t*>(dev->common.module);
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framebuffer_device_t *fbDev = hwcModule->fbDevice;
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if (fbDev) {
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//mHDMIEnabled could be HDMI/WFD/NO EXTERNAL
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fbDev->enableHDMIOutput(fbDev, ctx->mHDMIEnabled);
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}
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#endif
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}
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inline void ExtDispOnly::stopDefaultMirror(hwc_context_t* ctx) {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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hwc_composer_device_t* dev = (hwc_composer_device_t*) ctx;
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private_hwc_module_t* hwcModule =
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reinterpret_cast<private_hwc_module_t*>(dev->common.module);
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framebuffer_device_t *fbDev = hwcModule->fbDevice;
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if (fbDev) {
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fbDev->enableHDMIOutput(fbDev, EXT_DISPLAY_OFF);
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}
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#endif
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}
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inline bool ExtDispOnly::isExtModeStarting(hwc_context_t* ctx, const int&
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numExtLayers) {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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return ((eExtOnlyMode == EXT_ONLY_MODE_OFF) && numExtLayers);
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#endif
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return false;
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}
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inline bool ExtDispOnly::isExtModeStopping(hwc_context_t* ctx, const int&
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numExtLayers) {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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return ((eExtOnlyMode == EXT_ONLY_MODE_ON) && (numExtLayers == 0));
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#endif
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return false;
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}
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inline bool ExtDispOnly::isModeOn() {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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return (eExtOnlyMode == EXT_ONLY_MODE_ON);
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#endif
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return false;
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}
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int ExtDispOnly::update(hwc_context_t* ctx, hwc_layer_list_t* list) {
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#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
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int numExtLayers = 0;
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bool skipLayerPresent = false;
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bool blockLayerPresent = false;
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int blockLayerIndex = -1;
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//Book-keeping done each cycle
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for (size_t i = 0; i < list->numHwLayers; i++) {
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private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
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// Dont draw in this round
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if(list->hwLayers[i].flags & HWC_SKIP_LAYER) {
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skipLayerPresent = true;
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}
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if(hnd && (hnd->flags & private_handle_t::PRIV_FLAGS_EXTERNAL_ONLY)) {
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numExtLayers++;
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// No way we can let this be drawn by GPU to fb0
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if(list->hwLayers[i].flags & HWC_SKIP_LAYER) {
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list->hwLayers[i].flags &= ~ HWC_SKIP_LAYER;
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}
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list->hwLayers[i].flags |= HWC_USE_EXT_ONLY;
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list->hwLayers[i].compositionType = HWC_USE_OVERLAY;
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list->hwLayers[i].hints &= ~HWC_HINT_CLEAR_FB;
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//EXTERNAL_BLOCK is always an add-on
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if(hnd && (hnd->flags &
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private_handle_t::PRIV_FLAGS_EXTERNAL_BLOCK)) {
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blockLayerPresent = true;
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blockLayerIndex = i;
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list->hwLayers[i].flags |= HWC_USE_EXT_BLOCK;
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}
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}
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}
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//Update Default mirroring state
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if (isExtModeStarting(ctx, numExtLayers)) {
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stopDefaultMirror(ctx);
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} else if (isExtModeStopping(ctx, numExtLayers)) {
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startDefaultMirror(ctx);
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}
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//Cache our stats
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||
|
|
eExtOnlyMode = numExtLayers ? EXT_ONLY_MODE_ON : EXT_ONLY_MODE_OFF;
|
||
|
|
numExtOnlyLayers = numExtLayers;
|
||
|
|
skipLayerPresent = skipLayerPresent;
|
||
|
|
blockLayerPresent = blockLayerPresent;
|
||
|
|
blockLayerIndex = blockLayerIndex;
|
||
|
|
|
||
|
|
LOGE_IF(EXTDEBUG, "%s: numExtLayers = %d skipLayerPresent = %d", __func__,
|
||
|
|
numExtLayers, skipLayerPresent);
|
||
|
|
//If skip layer present return. Buffers to be unlocked in draw phase.
|
||
|
|
if(skipLayerPresent) {
|
||
|
|
return overlay::NO_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
//If External is not connected, dont setup pipes, just return
|
||
|
|
if(ctx->mHDMIEnabled == EXT_DISPLAY_OFF ||
|
||
|
|
ctx->pendingHDMI == true) {
|
||
|
|
ExtDispOnly::close();
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//Update pipes
|
||
|
|
bool waitForVsync = true;
|
||
|
|
bool index = 0;
|
||
|
|
|
||
|
|
if (blockLayerPresent) {
|
||
|
|
ExtDispOnly::closeRange(1);
|
||
|
|
ExtDispOnly::prepare(ctx, &(list->hwLayers[blockLayerIndex]),
|
||
|
|
index, waitForVsync);
|
||
|
|
} else if (numExtLayers) {
|
||
|
|
ExtDispOnly::closeRange(numExtLayers);
|
||
|
|
for (size_t i = 0; i < list->numHwLayers; i++) {
|
||
|
|
private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
|
||
|
|
if(hnd && hnd->flags & private_handle_t::PRIV_FLAGS_EXTERNAL_ONLY) {
|
||
|
|
waitForVsync = (index == (numExtLayers - 1));
|
||
|
|
ExtDispOnly::prepare(ctx, &(list->hwLayers[i]),
|
||
|
|
index, waitForVsync);
|
||
|
|
index++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
ExtDispOnly::close();
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
return overlay::NO_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ExtDispOnly::storeLockedHandles(hwc_layer_list_t* list) {
|
||
|
|
#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
|
||
|
|
int index = 0;
|
||
|
|
if(blockLayerPresent) {
|
||
|
|
private_handle_t *hnd = (private_handle_t *)
|
||
|
|
list->hwLayers[blockLayerIndex].handle;
|
||
|
|
if(list->hwLayers[blockLayerIndex].flags & HWC_USE_EXT_ONLY) {
|
||
|
|
if(!(hnd->flags & private_handle_t::PRIV_FLAGS_HWC_LOCK)) {
|
||
|
|
ExtDispOnly::lockBuffer(hnd);
|
||
|
|
}
|
||
|
|
previousExtHandle[index] = hnd;
|
||
|
|
LOGE_IF(EXTDEBUG, "%s BLOCK: handle = %p", __func__, hnd);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for(int i = 0; i < list->numHwLayers; i++) {
|
||
|
|
private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
|
||
|
|
if(list->hwLayers[i].flags & HWC_USE_EXT_ONLY) {
|
||
|
|
if(!(hnd->flags & private_handle_t::PRIV_FLAGS_HWC_LOCK)) {
|
||
|
|
ExtDispOnly::lockBuffer(hnd);
|
||
|
|
}
|
||
|
|
previousExtHandle[index] = hnd;
|
||
|
|
index++;
|
||
|
|
LOGE_IF(EXTDEBUG, "%s: handle = %p", __func__, hnd);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
int ExtDispOnly::draw(hwc_context_t *ctx, hwc_layer_list_t *list) {
|
||
|
|
#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
|
||
|
|
LOGE_IF(EXTDEBUG, "%s", __func__);
|
||
|
|
if(ctx->mHDMIEnabled == EXT_DISPLAY_OFF ||
|
||
|
|
ctx->pendingHDMI == true) {
|
||
|
|
ExtDispOnly::close();
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ret = overlay::NO_ERROR;
|
||
|
|
int index = 0;
|
||
|
|
|
||
|
|
//If skip layer present or list invalid unlock and return.
|
||
|
|
if(skipLayerPresent || list == NULL) {
|
||
|
|
ExtDispOnly::unlockPreviousBuffers();
|
||
|
|
return overlay::NO_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(blockLayerPresent) {
|
||
|
|
private_handle_t *hnd = (private_handle_t*)
|
||
|
|
list->hwLayers[blockLayerIndex].handle;
|
||
|
|
ExtDispOnly::lockBuffer(hnd);
|
||
|
|
ret = mOvExtUI[index]->queueBuffer(hnd);
|
||
|
|
if (ret) {
|
||
|
|
LOGE("%s queueBuffer failed", __func__);
|
||
|
|
// Unlock the locked buffer
|
||
|
|
ExtDispOnly::unlockBuffer(hnd);
|
||
|
|
ExtDispOnly::close();
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
ExtDispOnly::unlockPreviousBuffers();
|
||
|
|
ExtDispOnly::storeLockedHandles(list);
|
||
|
|
return overlay::NO_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
for(int i = 0; i < list->numHwLayers; i++) {
|
||
|
|
private_handle_t *hnd = (private_handle_t *)list->hwLayers[i].handle;
|
||
|
|
if(hnd && list->hwLayers[i].flags & HWC_USE_EXT_ONLY) {
|
||
|
|
overlay::OverlayUI *ovUI = mOvExtUI[index];
|
||
|
|
ExtDispOnly::lockBuffer(hnd);
|
||
|
|
ret = ovUI->queueBuffer(hnd);
|
||
|
|
if (ret) {
|
||
|
|
LOGE("%s queueBuffer failed", __func__);
|
||
|
|
// Unlock the all the currently locked buffers
|
||
|
|
for (int j = 0; j <= i; j++) {
|
||
|
|
private_handle_t *tmphnd =
|
||
|
|
(private_handle_t *)list->hwLayers[j].handle;
|
||
|
|
if(hnd && list->hwLayers[j].flags & HWC_USE_EXT_ONLY)
|
||
|
|
ExtDispOnly::unlockBuffer(tmphnd);
|
||
|
|
}
|
||
|
|
ExtDispOnly::close();
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
index++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ExtDispOnly::unlockPreviousBuffers();
|
||
|
|
ExtDispOnly::storeLockedHandles(list);
|
||
|
|
#endif
|
||
|
|
return overlay::NO_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined (HDMI_DUAL_DISPLAY) && defined (USE_OVERLAY)
|
||
|
|
overlay::OverlayUI* ExtDispOnly::mOvExtUI[MAX_EXT_ONLY_LAYERS];
|
||
|
|
native_handle_t* ExtDispOnly::previousExtHandle[MAX_EXT_ONLY_LAYERS];
|
||
|
|
ExtDispOnly::ExternalOnlyMode ExtDispOnly::eExtOnlyMode;
|
||
|
|
int ExtDispOnly::numExtOnlyLayers;
|
||
|
|
bool ExtDispOnly::skipLayerPresent;
|
||
|
|
bool ExtDispOnly::blockLayerPresent;
|
||
|
|
int ExtDispOnly::blockLayerIndex;
|
||
|
|
#endif
|