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/*
* Copyright (C) 2013-2014 Canonical, Ltd.
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License version 3, as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranties of MERCHANTABILITY,
* SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "mirbuffersgtexture.h"
// Mir
#include <mir/graphics/buffer.h>
#include <mir/geometry/size.h>
// QQuickProfiler uses the pretty syntax for emit, signal & slot
#define emit Q_EMIT
#define signals Q_SIGNALS
#define slots Q_SLOTS
#include <private/qquickprofiler_p.h>
#undef emit
#undef signals
#undef slots
#include <QElapsedTimer>
static QElapsedTimer qsg_renderer_timer;
static bool qsg_render_timing = !qgetenv("QSG_RENDER_TIMING").isEmpty();
namespace mg = mir::geometry;
MirBufferSGTexture::MirBufferSGTexture(std::shared_ptr<mir::graphics::Buffer> buffer)
: QSGTexture()
, m_mirBuffer(buffer)
, m_textureId(0)
{
glGenTextures(1, &m_textureId);
setFiltering(QSGTexture::Linear);
setHorizontalWrapMode(QSGTexture::ClampToEdge);
setVerticalWrapMode(QSGTexture::ClampToEdge);
mg::Size size = m_mirBuffer->size();
m_height = size.height.as_int();
m_width = size.width.as_int();
}
MirBufferSGTexture::~MirBufferSGTexture()
{
if (m_textureId) {
glDeleteTextures(1, &m_textureId);
}
}
void MirBufferSGTexture::freeBuffer()
{
m_mirBuffer.reset();
}
void MirBufferSGTexture::setBuffer(std::shared_ptr<mir::graphics::Buffer> buffer)
{
m_mirBuffer = buffer;
mg::Size size = buffer->size();
m_height = size.height.as_int();
m_width = size.width.as_int();
}
int MirBufferSGTexture::textureId() const
{
return m_textureId;
}
QSize MirBufferSGTexture::textureSize() const
{
return QSize(m_width, m_height);
}
bool MirBufferSGTexture::hasAlphaChannel() const
{
return m_mirBuffer->pixel_format() == mir_pixel_format_abgr_8888
|| m_mirBuffer->pixel_format() == mir_pixel_format_argb_8888;
}
void MirBufferSGTexture::bind()
{
#if QT_VERSION < QT_VERSION_CHECK(5, 4, 0)
bool profileFrames = qsg_render_timing || QQuickProfiler::enabled;
#else
bool profileFrames = qsg_render_timing || QQuickProfiler::profilingSceneGraph();
#endif
if (profileFrames)
qsg_renderer_timer.start();
glBindTexture(GL_TEXTURE_2D, m_textureId);
updateBindOptions(true/* force */);
m_mirBuffer->gl_bind_to_texture();
qint64 bindTime = 0;
if (profileFrames)
bindTime = qsg_renderer_timer.nsecsElapsed();
if (qsg_render_timing) {
printf(" - mirbuffertexture(%dx%d) bind=%d, total=%d\n",
m_width, m_height,
int(bindTime/1000000),
(int) qsg_renderer_timer.elapsed());
}
#if QT_VERSION < QT_VERSION_CHECK(5, 4, 0)
Q_QUICK_SG_PROFILE1(QQuickProfiler::SceneGraphTexturePrepare, (
#else
Q_QUICK_SG_PROFILE(QQuickProfiler::SceneGraphTexturePrepare, (
#endif
bindTime, // bind (all this does)
0, // convert (not relevant)
0, // swizzle (not relevant)
0, // upload (not relevant)
0)); // mipmap (not used ever...)
}
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