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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include "brcmeglintegration.h"
#include "brcmbuffer.h"
#include <QtWaylandCompositor/qwaylandsurface.h>
#include <qpa/qplatformnativeinterface.h>
#include <QtGui/QGuiApplication>
#include <QtGui/QOpenGLContext>
#include <QOpenGLTexture>
#include <qpa/qplatformscreen.h>
#include <QtGui/QWindow>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <EGL/eglext_brcm.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
QT_BEGIN_NAMESPACE
class BrcmEglIntegrationPrivate
{
public:
BrcmEglIntegrationPrivate() = default;
static BrcmEglIntegrationPrivate *get(BrcmEglIntegration *integration);
EGLDisplay egl_display = EGL_NO_DISPLAY;
bool valid = false;
PFNEGLQUERYGLOBALIMAGEBRCMPROC eglQueryGlobalImageBRCM;
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES;
PFNEGLCREATEIMAGEKHRPROC eglCreateImageKHR;
PFNEGLDESTROYIMAGEKHRPROC eglDestroyImageKHR;
};
BrcmEglIntegration::BrcmEglIntegration()
: d_ptr(new BrcmEglIntegrationPrivate)
{
}
void BrcmEglIntegration::initializeHardware(struct ::wl_display *display)
{
Q_D(BrcmEglIntegration);
QPlatformNativeInterface *nativeInterface = QGuiApplication::platformNativeInterface();
if (nativeInterface) {
d->egl_display = nativeInterface->nativeResourceForIntegration("EglDisplay");
if (!d->egl_display)
qWarning("Failed to acquire EGL display from platform integration");
d->eglQueryGlobalImageBRCM = (PFNEGLQUERYGLOBALIMAGEBRCMPROC) eglGetProcAddress("eglQueryGlobalImageBRCM");
if (!d->eglQueryGlobalImageBRCM) {
qWarning("Failed to resolve eglQueryGlobalImageBRCM");
return;
}
d->glEGLImageTargetTexture2DOES = (PFNGLEGLIMAGETARGETTEXTURE2DOESPROC)eglGetProcAddress("glEGLImageTargetTexture2DOES");
if (!d->glEGLImageTargetTexture2DOES) {
qWarning("Failed to resolve glEGLImageTargetTexture2DOES");
return;
}
d->eglCreateImageKHR = (PFNEGLCREATEIMAGEKHRPROC)eglGetProcAddress("eglCreateImageKHR");
if (!d->eglCreateImageKHR) {
qWarning("Failed to resolve eglCreateImageKHR");
return;
}
d->eglDestroyImageKHR = (PFNEGLDESTROYIMAGEKHRPROC)eglGetProcAddress("eglDestroyImageKHR");
if (!d->eglDestroyImageKHR) {
qWarning("Failed to resolve eglDestroyImageKHR");
return;
}
d->valid = true;
init(display, 1);
}
}
QtWayland::ClientBuffer *BrcmEglIntegration::createBufferFor(wl_resource *buffer)
{
if (wl_shm_buffer_get(buffer))
return nullptr;
return new BrcmEglClientBuffer(this, buffer);
}
BrcmEglIntegrationPrivate *BrcmEglIntegrationPrivate::get(BrcmEglIntegration *integration)
{
return integration->d_ptr.data();
}
QOpenGLTexture *BrcmEglClientBuffer::toOpenGlTexture(int plane)
{
Q_UNUSED(plane);
auto d = BrcmEglIntegrationPrivate::get(m_integration);
if (!d->valid) {
qWarning("bindTextureToBuffer failed!");
return nullptr;
}
BrcmBuffer *brcmBuffer = BrcmBuffer::fromResource(m_buffer);
if (!d->eglQueryGlobalImageBRCM(brcmBuffer->handle(), brcmBuffer->handle() + 2)) {
qWarning("eglQueryGlobalImageBRCM failed!");
return nullptr;
}
EGLImageKHR image = d->eglCreateImageKHR(d->egl_display, EGL_NO_CONTEXT, EGL_NATIVE_PIXMAP_KHR, (EGLClientBuffer)brcmBuffer->handle(), NULL);
if (image == EGL_NO_IMAGE_KHR)
qWarning("eglCreateImageKHR() failed: %x\n", eglGetError());
if (!m_texture) {
m_texture = new QOpenGLTexture(QOpenGLTexture::Target2D);
m_texture->create();
}
m_texture->bind();
d->glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
d->eglDestroyImageKHR(d->egl_display, image);
return m_texture;
}
void BrcmEglIntegration::brcm_bind_resource(Resource *)
{
}
void BrcmEglIntegration::brcm_create_buffer(Resource *resource, uint32_t id, int32_t width, int32_t height, wl_array *data)
{
new BrcmBuffer(resource->client(), id, QSize(width, height), static_cast<EGLint *>(data->data), data->size / sizeof(EGLint));
}
BrcmEglClientBuffer::BrcmEglClientBuffer(BrcmEglIntegration *integration, wl_resource *buffer)
: ClientBuffer(buffer)
, m_integration(integration)
{
}
QWaylandBufferRef::BufferFormatEgl BrcmEglClientBuffer::bufferFormatEgl() const
{
return QWaylandBufferRef::BufferFormatEgl_RGBA;
}
QSize BrcmEglClientBuffer::size() const
{
BrcmBuffer *brcmBuffer = BrcmBuffer::fromResource(m_buffer);
return brcmBuffer->size();
}
QWaylandSurface::Origin BrcmEglClientBuffer::origin() const
{
BrcmBuffer *brcmBuffer = BrcmBuffer::fromResource(m_buffer);
return brcmBuffer->isYInverted() ? QWaylandSurface::OriginTopLeft : QWaylandSurface::OriginBottomLeft;
}
QT_END_NAMESPACE
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