d2fb4147fc
Things such as Output, InputDevice and so on are made to be multi-purpose. In order to make this separation more clear, this change moves that code in the core directory. Some things still link to the abstraction level above (kwin), they can be tackled in future refactors. Ideally code in core/ should depend either on other code in core/ or system libs.
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/*
|
|
SPDX-FileCopyrightText: 2022 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
|
|
|
|
SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "cursordelegate_opengl.h"
|
|
#include "core/renderlayer.h"
|
|
#include "core/rendertarget.h"
|
|
#include "cursor.h"
|
|
#include "kwingltexture.h"
|
|
#include "kwinglutils.h"
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
CursorDelegateOpenGL::CursorDelegateOpenGL(QObject *parent)
|
|
: RenderLayerDelegate(parent)
|
|
{
|
|
}
|
|
|
|
CursorDelegateOpenGL::~CursorDelegateOpenGL()
|
|
{
|
|
}
|
|
|
|
void CursorDelegateOpenGL::paint(RenderTarget *renderTarget, const QRegion ®ion)
|
|
{
|
|
if (!region.intersects(layer()->mapToGlobal(layer()->rect()))) {
|
|
return;
|
|
}
|
|
|
|
auto allocateTexture = [this]() {
|
|
const QImage img = Cursors::self()->currentCursor()->image();
|
|
if (img.isNull()) {
|
|
m_cursorTextureDirty = false;
|
|
return;
|
|
}
|
|
m_cursorTexture.reset(new GLTexture(img));
|
|
m_cursorTexture->setWrapMode(GL_CLAMP_TO_EDGE);
|
|
m_cursorTextureDirty = false;
|
|
};
|
|
|
|
// lazy init texture cursor only in case we need software rendering
|
|
if (!m_cursorTexture) {
|
|
allocateTexture();
|
|
|
|
// handle shape update on case cursor image changed
|
|
connect(Cursors::self(), &Cursors::currentCursorChanged, this, [this]() {
|
|
m_cursorTextureDirty = true;
|
|
});
|
|
} else if (m_cursorTextureDirty) {
|
|
const QImage image = Cursors::self()->currentCursor()->image();
|
|
if (image.size() == m_cursorTexture->size()) {
|
|
m_cursorTexture->update(image);
|
|
m_cursorTextureDirty = false;
|
|
} else {
|
|
allocateTexture();
|
|
}
|
|
}
|
|
|
|
const QRect cursorRect = layer()->mapToGlobal(layer()->rect());
|
|
|
|
QMatrix4x4 mvp;
|
|
mvp.ortho(QRect(QPoint(0, 0), renderTarget->size() / renderTarget->devicePixelRatio()));
|
|
mvp.translate(cursorRect.x(), cursorRect.y());
|
|
|
|
// Don't need to call GLVertexBuffer::beginFrame() and GLVertexBuffer::endOfFrame() because
|
|
// the GLVertexBuffer::streamingBuffer() is not being used when painting cursor.
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
m_cursorTexture->bind();
|
|
ShaderBinder binder(ShaderTrait::MapTexture);
|
|
binder.shader()->setUniform(GLShader::ModelViewProjectionMatrix, mvp);
|
|
m_cursorTexture->render(region, QRect(0, 0, cursorRect.width(), cursorRect.height()));
|
|
m_cursorTexture->unbind();
|
|
glDisable(GL_BLEND);
|
|
}
|
|
|
|
} // namespace KWin
|