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/*
* Copyright (c) 2014 - 2016, 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 <cutils/properties.h>
#include <utils/constants.h>
#include <utils/debug.h>
#include <algorithm>
#include "hwc_display_external.h"
#include "hwc_debugger.h"
#define __CLASS__ "HWCDisplayExternal"
namespace sdm {
int HWCDisplayExternal::Create(CoreInterface *core_intf, HWCBufferAllocator *buffer_allocator,
HWCCallbacks *callbacks, qService::QService *qservice,
HWCDisplay **hwc_display) {
return Create(core_intf, buffer_allocator, callbacks, 0, 0, qservice, false, hwc_display);
}
int HWCDisplayExternal::Create(CoreInterface *core_intf, HWCBufferAllocator *buffer_allocator,
HWCCallbacks *callbacks,
uint32_t primary_width, uint32_t primary_height,
qService::QService *qservice, bool use_primary_res,
HWCDisplay **hwc_display) {
uint32_t external_width = 0;
uint32_t external_height = 0;
DisplayError error = kErrorNone;
HWCDisplay *hwc_display_external = new HWCDisplayExternal(core_intf, buffer_allocator, callbacks,
qservice);
int status = hwc_display_external->Init();
if (status) {
delete hwc_display_external;
return status;
}
error = hwc_display_external->GetMixerResolution(&external_width, &external_height);
if (error != kErrorNone) {
return -EINVAL;
}
if (primary_width && primary_height) {
// use_primary_res means HWCDisplayExternal should directly set framebuffer resolution to the
// provided primary_width and primary_height
if (use_primary_res) {
external_width = primary_width;
external_height = primary_height;
} else {
int downscale_enabled = 0;
HWCDebugHandler::Get()->GetProperty("sdm.debug.downscale_external", &downscale_enabled);
if (downscale_enabled) {
GetDownscaleResolution(primary_width, primary_height, &external_width, &external_height);
}
}
}
status = hwc_display_external->SetFrameBufferResolution(external_width, external_height);
if (status) {
Destroy(hwc_display_external);
return status;
}
*hwc_display = hwc_display_external;
return status;
}
void HWCDisplayExternal::Destroy(HWCDisplay *hwc_display) {
hwc_display->Deinit();
delete hwc_display;
}
HWCDisplayExternal::HWCDisplayExternal(CoreInterface *core_intf,
HWCBufferAllocator *buffer_allocator,
HWCCallbacks *callbacks,
qService::QService *qservice)
: HWCDisplay(core_intf, callbacks, kHDMI, HWC_DISPLAY_EXTERNAL, false, qservice,
DISPLAY_CLASS_EXTERNAL, buffer_allocator) {
}
HWC2::Error HWCDisplayExternal::Validate(uint32_t *out_num_types, uint32_t *out_num_requests) {
auto status = HWC2::Error::None;
if (secure_display_active_) {
MarkLayersForGPUBypass();
return status;
}
BuildLayerStack();
if (layer_set_.empty()) {
flush_ = true;
return status;
}
status = PrepareLayerStack(out_num_types, out_num_requests);
return status;
}
HWC2::Error HWCDisplayExternal::Present(int32_t *out_retire_fence) {
auto status = HWC2::Error::None;
if (!secure_display_active_) {
status = HWCDisplay::CommitLayerStack();
if (status == HWC2::Error::None) {
status = HWCDisplay::PostCommitLayerStack(out_retire_fence);
}
}
return status;
}
void HWCDisplayExternal::ApplyScanAdjustment(hwc_rect_t *display_frame) {
if ((underscan_width_ <= 0) || (underscan_height_ <= 0)) {
return;
}
float width_ratio = FLOAT(underscan_width_) / 100.0f;
float height_ratio = FLOAT(underscan_height_) / 100.0f;
uint32_t mixer_width = 0;
uint32_t mixer_height = 0;
GetMixerResolution(&mixer_width, &mixer_height);
if (mixer_width == 0 || mixer_height == 0) {
DLOGV("Invalid mixer dimensions (%d, %d)", mixer_width, mixer_height);
return;
}
uint32_t new_mixer_width = UINT32(mixer_width * FLOAT(1.0f - width_ratio));
uint32_t new_mixer_height = UINT32(mixer_height * FLOAT(1.0f - height_ratio));
int x_offset = INT((FLOAT(mixer_width) * width_ratio) / 2.0f);
int y_offset = INT((FLOAT(mixer_height) * height_ratio) / 2.0f);
display_frame->left = (display_frame->left * INT32(new_mixer_width) / INT32(mixer_width))
+ x_offset;
display_frame->top = (display_frame->top * INT32(new_mixer_height) / INT32(mixer_height)) +
y_offset;
display_frame->right = ((display_frame->right * INT32(new_mixer_width)) / INT32(mixer_width)) +
x_offset;
display_frame->bottom = ((display_frame->bottom * INT32(new_mixer_height)) / INT32(mixer_height))
+ y_offset;
}
void HWCDisplayExternal::SetSecureDisplay(bool secure_display_active) {
if (secure_display_active_ != secure_display_active) {
secure_display_active_ = secure_display_active;
if (secure_display_active_) {
DisplayError error = display_intf_->Flush();
if (error != kErrorNone) {
DLOGE("Flush failed. Error = %d", error);
}
}
}
return;
}
static void AdjustSourceResolution(uint32_t dst_width, uint32_t dst_height, uint32_t *src_width,
uint32_t *src_height) {
*src_height = (dst_width * (*src_height)) / (*src_width);
*src_width = dst_width;
}
void HWCDisplayExternal::GetDownscaleResolution(uint32_t primary_width, uint32_t primary_height,
uint32_t *non_primary_width,
uint32_t *non_primary_height) {
uint32_t primary_area = primary_width * primary_height;
uint32_t non_primary_area = (*non_primary_width) * (*non_primary_height);
if (primary_area > non_primary_area) {
if (primary_height > primary_width) {
std::swap(primary_height, primary_width);
}
AdjustSourceResolution(primary_width, primary_height, non_primary_width, non_primary_height);
}
}
void HWCDisplayExternal::GetUnderScanConfig() {
if (!display_intf_->IsUnderscanSupported()) {
// Read user defined underscan width and height
HWCDebugHandler::Get()->GetProperty("sdm.external_action_safe_width", &underscan_width_);
HWCDebugHandler::Get()->GetProperty("sdm.external_action_safe_height", &underscan_height_);
}
}
} // namespace sdm
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