99af2aa726
LinuxDmaBufV1ClientBuffer contains properties (formats, and flags) that are not available in the base GraphicsBuffer type and there's no reason to move it there. In order to get rid of those properties (and eventually hide the LinuxDmaBufV1ClientBuffer type from the public api), this change adds a DmaBufAttributes getter in the GraphicsBuffer.
88 lines
3.1 KiB
C++
88 lines
3.1 KiB
C++
/*
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 2022 Xaver Hugl <xaver.hugl@gmail.com>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "drm_dmabuf_feedback.h"
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#include "drm_egl_backend.h"
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#include "drm_gpu.h"
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#include "wayland/linuxdmabufv1clientbuffer.h"
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#include "wayland/surface_interface.h"
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namespace KWin
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{
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DmabufFeedback::DmabufFeedback(DrmGpu *gpu, EglGbmBackend *eglBackend)
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: m_gpu(gpu)
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, m_eglBackend(eglBackend)
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{
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}
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void DmabufFeedback::renderingSurface()
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{
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if (m_surface && !m_attemptedThisFrame) {
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if (const auto &feedback = m_surface->dmabufFeedbackV1()) {
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feedback->setTranches({});
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}
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m_surface = nullptr;
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}
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m_attemptedThisFrame = false;
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}
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void DmabufFeedback::scanoutSuccessful(KWaylandServer::SurfaceInterface *surface)
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{
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if (surface != m_surface) {
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if (m_surface && m_surface->dmabufFeedbackV1()) {
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m_surface->dmabufFeedbackV1()->setTranches({});
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}
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m_surface = surface;
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m_attemptedFormats = {};
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}
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}
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void DmabufFeedback::scanoutFailed(KWaylandServer::SurfaceInterface *surface, const QMap<uint32_t, QVector<uint64_t>> &formats)
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{
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m_attemptedThisFrame = true;
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if (surface != m_surface) {
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m_attemptedFormats = {};
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if (m_surface && m_surface->dmabufFeedbackV1()) {
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m_surface->dmabufFeedbackV1()->setTranches({});
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}
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m_surface = surface;
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}
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if (const auto &feedback = m_surface->dmabufFeedbackV1()) {
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const auto buffer = qobject_cast<KWaylandServer::LinuxDmaBufV1ClientBuffer *>(surface->buffer());
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Q_ASSERT(buffer);
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const DmaBufAttributes *dmabufAttrs = buffer->dmabufAttributes();
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if (!m_attemptedFormats[dmabufAttrs->format].contains(dmabufAttrs->modifier)) {
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m_attemptedFormats[dmabufAttrs->format] << dmabufAttrs->modifier;
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QVector<KWaylandServer::LinuxDmaBufV1Feedback::Tranche> scanoutTranches;
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const auto tranches = m_eglBackend->tranches();
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for (const auto &tranche : tranches) {
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KWaylandServer::LinuxDmaBufV1Feedback::Tranche scanoutTranche;
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for (auto it = tranche.formatTable.constBegin(); it != tranche.formatTable.constEnd(); it++) {
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const uint32_t format = it.key();
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const auto trancheModifiers = it.value();
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const auto drmModifiers = formats[format];
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for (const auto &mod : trancheModifiers) {
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if (drmModifiers.contains(mod) && !m_attemptedFormats[format].contains(mod)) {
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scanoutTranche.formatTable[format] << mod;
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}
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}
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}
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if (!scanoutTranche.formatTable.isEmpty()) {
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scanoutTranche.device = m_gpu->deviceId();
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scanoutTranche.flags = KWaylandServer::LinuxDmaBufV1Feedback::TrancheFlag::Scanout;
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scanoutTranches << scanoutTranche;
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}
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}
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feedback->setTranches(scanoutTranches);
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}
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}
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}
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}
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