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/*
* Copyright (C) 2005-2020 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#include "DRMPlane.h"
#include "DRMUtils.h"
#include "utils/DRMHelpers.h"
#include "utils/StringUtils.h"
#include "utils/log.h"
using namespace KODI::WINDOWING::GBM;
CDRMPlane::CDRMPlane(int fd, uint32_t plane) : CDRMObject(fd), m_plane(drmModeGetPlane(m_fd, plane))
{
if (!m_plane)
throw std::runtime_error("drmModeGetPlane failed: " + std::string{strerror(errno)});
if (!GetProperties(m_plane->plane_id, DRM_MODE_OBJECT_PLANE))
throw std::runtime_error("failed to get properties for plane: " +
std::to_string(m_plane->plane_id));
}
bool CDRMPlane::SupportsFormat(uint32_t format)
{
for (uint32_t i = 0; i < m_plane->count_formats; i++)
if (m_plane->formats[i] == format)
return true;
return false;
}
bool CDRMPlane::SupportsFormatAndModifier(uint32_t format, uint64_t modifier)
{
/*
* Some broadcom modifiers have parameters encoded which need to be
* masked out before comparing with reported modifiers.
*/
if (modifier >> 56 == DRM_FORMAT_MOD_VENDOR_BROADCOM)
modifier = fourcc_mod_broadcom_mod(modifier);
if (modifier == DRM_FORMAT_MOD_LINEAR)
{
if (!SupportsFormat(format))
{
CLog::Log(LOGDEBUG, "CDRMPlane::{} - format not supported: {}", __FUNCTION__,
DRMHELPERS::FourCCToString(format));
return false;
}
}
else
{
auto formatModifiers = &m_modifiers_map[format];
if (formatModifiers->empty())
{
CLog::Log(LOGDEBUG, "CDRMPlane::{} - format not supported: {}", __FUNCTION__,
DRMHELPERS::FourCCToString(format));
return false;
}
auto formatModifier = std::find(formatModifiers->begin(), formatModifiers->end(), modifier);
if (formatModifier == formatModifiers->end())
{
CLog::Log(LOGDEBUG, "CDRMPlane::{} - modifier ({}) not supported for format ({})",
__FUNCTION__, DRMHELPERS::ModifierToString(modifier),
DRMHELPERS::FourCCToString(format));
return false;
}
}
CLog::Log(LOGDEBUG, "CDRMPlane::{} - found plane format ({}) and modifier ({})", __FUNCTION__,
DRMHELPERS::FourCCToString(format), DRMHELPERS::ModifierToString(modifier));
return true;
}
void CDRMPlane::FindModifiers()
{
auto property = std::find_if(m_propsInfo.begin(), m_propsInfo.end(), [](auto& prop) {
return StringUtils::EqualsNoCase(prop->name, "IN_FORMATS");
});
uint64_t blob_id = 0;
if (property != m_propsInfo.end())
blob_id = m_props->prop_values[std::distance(m_propsInfo.begin(), property)];
if (blob_id == 0)
return;
drmModePropertyBlobPtr blob = drmModeGetPropertyBlob(m_fd, blob_id);
if (!blob)
return;
drm_format_modifier_blob* header = static_cast<drm_format_modifier_blob*>(blob->data);
uint32_t* formats =
reinterpret_cast<uint32_t*>(reinterpret_cast<char*>(header) + header->formats_offset);
drm_format_modifier* mod = reinterpret_cast<drm_format_modifier*>(
reinterpret_cast<char*>(header) + header->modifiers_offset);
for (uint32_t i = 0; i < header->count_formats; i++)
{
std::vector<uint64_t> modifiers;
for (uint32_t j = 0; j < header->count_modifiers; j++)
{
if (mod[j].formats & 1ULL << i)
modifiers.emplace_back(mod[j].modifier);
}
m_modifiers_map.emplace(formats[i], modifiers);
}
if (blob)
drmModeFreePropertyBlob(blob);
}
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