void
GLScreen::glBufferStencil (const GLMatrix &matrix,
GLVertexBuffer &vertexBuffer,
CompOutput *output)
{
WRAPABLE_HND_FUNCTN (glBufferStencil, matrix, vertexBuffer, output);
GLfloat x = output->x ();
GLfloat y = screen->height () - output->y2 ();
GLfloat x2 = output->x () + output->width ();
GLfloat y2 = screen->height () - output->y2 () + output->height ();
GLfloat vertices[] =
{
x, y, 0,
x, y2, 0,
x2, y, 0,
x2, y2, 0
};
GLushort colorData[] = { 0xffff, 0xffff, 0xffff, 0xffff };
vertexBuffer.begin (GL_TRIANGLE_STRIP);
vertexBuffer.addVertices (4, vertices);
vertexBuffer.addColors (1, colorData);
vertexBuffer.end ();
}
void ShowFpsEffect::paintGraph(int x, int y, QList<int> values, QList<int> lines, bool colorize)
{
if (effects->isOpenGLCompositing()) {
QColor color(0, 0, 0);
color.setAlphaF(alpha);
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setColor(color);
QVector<float> verts;
// First draw the lines
foreach (int h, lines) {
verts << x << y - h;
verts << x + values.count() << y - h;
}
// Create buffers required for drawing the mesh on hardware. This must be called
// before rendering whenever the mesh has changed.
//
// return true if all hardware buffers could be created.
bool
MeshGeometry::realize() const
{
// Mark hardware buffers as up-to-date. Even if vertex buffer allocation fails,
// we don't want to keep retrying every time a frame is rendered.
m_hwBuffersCurrent = true;
// Only create vertex buffers for submeshes for which the size of the vertex
// data exceeds the limit below.
const unsigned int VertexBufferSizeThreshold = 4096;
// Don't create anything if hardware/driver doesn't support vertex buffer objects,
// but report success anyhow.
if (!GLVertexBuffer::supported())
{
return true;
}
bool ok = true;
freeSubmeshBuffers();
for (vector< counted_ptr<Submesh> >::const_iterator iter = m_submeshes.begin();
iter != m_submeshes.end(); ++iter)
{
Submesh* submesh = iter->ptr();
GLVertexBuffer* vertexBuffer = NULL;
unsigned int size = submesh->vertices()->stride() * submesh->vertices()->count();
if (size > VertexBufferSizeThreshold)
{
vertexBuffer = new GLVertexBuffer(size, GL_STATIC_DRAW_ARB, submesh->vertices()->data());
if (!vertexBuffer->isValid())
{
delete vertexBuffer;
ok = false;
}
}
// A null vertex pointer is legal and indicates that the vertex data is
// stored in system memory instead of graphics memory.
m_submeshBuffers.push_back(vertexBuffer);
}
return ok;
}
void GLVertexBuffer::copyBuffer(const GraphicBufferPtr& to) {
if(to) {
GLVertexBuffer* dest = checked_cast<GLVertexBuffer*>(to.get());
if(glCopyBufferSubData) {
glBindBuffer(GL_COPY_READ_BUFFER, this->getGLBuffer());
glBindBuffer(GL_COPY_WRITE_BUFFER, dest->getGLBuffer());
CHECK_GL_CALL(glCopyBufferSubData(GL_COPY_READ_BUFFER,
GL_COPY_WRITE_BUFFER,
0,
0,
this->count() * GetVertexElementsTotalSize(this->format())));
glBindBuffer(GL_COPY_READ_BUFFER, 0);
glBindBuffer(GL_COPY_WRITE_BUFFER, 0);
} else {
log_error(L"GLVertexBuffer::copyBuffer: GL Copy Buffer Sub Data not supported");
}
}
}
void MouseMarkEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data)
{
effects->paintScreen(mask, region, data); // paint normal screen
if (marks.isEmpty() && drawing.isEmpty())
return;
if ( effects->compositingType() == OpenGLCompositing) {
#ifndef KWIN_HAVE_OPENGLES
glEnable(GL_LINE_SMOOTH);
#endif
glLineWidth(width);
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setUseColor(true);
vbo->setColor(color);
if (ShaderManager::instance()->isValid()) {
ShaderManager::instance()->pushShader(ShaderManager::ColorShader);
}
QVector<float> verts;
foreach (const Mark & mark, marks) {
verts.clear();
verts.reserve(mark.size() * 2);
foreach (const QPoint & p, mark) {
verts << p.x() << p.y();
}
vbo->setData(verts.size() / 2, 2, verts.data(), NULL);
vbo->render(GL_LINE_STRIP);
}
void ShowPaintEffect::paintGL()
{
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setUseColor(true);
if (ShaderManager::instance()->isValid()) {
ShaderManager::instance()->pushShader(ShaderManager::ColorShader);
}
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
QColor color = colors[ color_index ];
color.setAlphaF(0.2);
vbo->setColor(color);
QVector<float> verts;
verts.reserve(painted.rects().count() * 12);
foreach (const QRect & r, painted.rects()) {
verts << r.x() + r.width() << r.y();
verts << r.x() << r.y();
verts << r.x() << r.y() + r.height();
verts << r.x() << r.y() + r.height();
verts << r.x() + r.width() << r.y() + r.height();
verts << r.x() + r.width() << r.y();
}
vbo->setData(verts.count() / 2, 2, verts.data(), NULL);
vbo->render(GL_TRIANGLES);
if (ShaderManager::instance()->isValid()) {
ShaderManager::instance()->popShader();
}
glDisable(GL_BLEND);
}
bool
ShowrepaintScreen::glPaintOutput (const GLScreenPaintAttrib &attrib,
const GLMatrix &transform,
const CompRegion ®ion,
CompOutput *output,
unsigned int mask)
{
bool status;
GLMatrix sTransform; // initially identity matrix
unsigned short color[4];
status = gScreen->glPaintOutput (attrib, transform, region, output, mask);
tmpRegion = region.intersected (*output);
if (tmpRegion.isEmpty ())
return status;
sTransform.toScreenSpace (output, -DEFAULT_Z_CAMERA);
color[3] = optionGetIntensity () * 0xffff / 100;
color[0] = (rand () & 7) * color[3] / 8;
color[1] = (rand () & 7) * color[3] / 8;
color[2] = (rand () & 7) * color[3] / 8;
GLboolean glBlendEnabled = glIsEnabled (GL_BLEND);
if (!glBlendEnabled)
glEnable (GL_BLEND);
std::vector<GLfloat> vertices;
/* for each rectangle, use two triangles to display it */
foreach (const CompRect &box, tmpRegion.rects ())
{
//first triangle
vertices.push_back (box.x1 ());
vertices.push_back (box.y1 ());
vertices.push_back (0.0f);
vertices.push_back (box.x1 ());
vertices.push_back (box.y2 ());
vertices.push_back (0.0f);
vertices.push_back (box.x2 ());
vertices.push_back (box.y2 ());
vertices.push_back (0.0f);
//second triangle
vertices.push_back (box.x2 ());
vertices.push_back (box.y2 ());
vertices.push_back (0.0f);
vertices.push_back (box.x2 ());
vertices.push_back (box.y1 ());
vertices.push_back (0.0f);
vertices.push_back (box.x1 ());
vertices.push_back (box.y1 ());
vertices.push_back (0.0f);
}
GLVertexBuffer *stream = GLVertexBuffer::streamingBuffer ();
stream->begin (GL_TRIANGLES);
stream->color4f ((float)color[0] / 65535.0f, (float)color[1] / 65535.0f, (float)color[2] / 65535.0f, (float)color[3] / 65535.0f);
stream->addVertices (vertices.size () / 3, &vertices[0]);
if (stream->end ())
stream->render (sTransform);
stream->colorDefault ();
/* only disable blending if it was disabled before */
if (!glBlendEnabled)
glDisable (GL_BLEND);
return status;
}
/*
GL interop test.
Julia.
*/
TEST(GLInteropTest, Julia)
{
try
{
const int width = 1280;
const int height = 720;
const int bufWidth = 1920;
const int bufHeight = 1080;
// ------------------------------------------------------------
GLTestWindow window(width, height, true);
GLContextParam param;
param.DebugMode = true;
param.Multisample = 8;
GLContext context(window.Handle(), param);
GLUtil::EnableDebugOutput(GLUtil::DebugOutputFrequencyLow);
// ------------------------------------------------------------
// Choose device
cudaDeviceProp prop;
memset(&prop, 0, sizeof(cudaDeviceProp));
prop.major = 2;
prop.minor = 0;
int devID;
HandleCudaError(cudaChooseDevice(&devID, &prop));
HandleCudaError(cudaGLSetGLDevice(devID));
// Get properties
HandleCudaError(cudaGetDeviceProperties(&prop, devID));
// Create texture and PBO
GLTexture2D texture;
texture.SetMagFilter(GL_LINEAR);
texture.SetMinFilter(GL_LINEAR);
texture.SetWrap(GL_CLAMP_TO_EDGE);
texture.Allocate(bufWidth, bufHeight, GL_RGBA8);
GLPixelUnpackBuffer pbo;
pbo.Allocate(bufWidth * bufHeight * 4, NULL, GL_DYNAMIC_DRAW);
// Register
cudaGraphicsResource* cudaPbo;
HandleCudaError(cudaGraphicsGLRegisterBuffer(&cudaPbo, pbo.ID(), cudaGraphicsMapFlagsWriteDiscard));
// ------------------------------------------------------------
GLShader shader;
shader.Compile("../resources/texturetest_simple2d.vert");
shader.Compile("../resources/texturetest_simple2d.frag");
shader.Link();
GLVertexArray vao;
GLVertexBuffer positionVbo;
GLIndexBuffer ibo;
glm::vec3 v[] =
{
glm::vec3( 1.0f, 1.0f, 0.0f),
glm::vec3(-1.0f, 1.0f, 0.0f),
glm::vec3(-1.0f, -1.0f, 0.0f),
glm::vec3( 1.0f, -1.0f, 0.0f)
};
GLuint i[] =
{
0, 1, 2,
2, 3, 0
};
positionVbo.AddStatic(12, &v[0].x);
vao.Add(GLDefaultVertexAttribute::Position, &positionVbo);
ibo.AddStatic(6, i);
// ------------------------------------------------------------
double fps = 0.0;
double timeSum = 0.0;
double prevTime = GLTestUtil::CurrentTimeMilli();
int frameCount = 0;
double start = GLTestUtil::CurrentTimeMilli();
float xcparam = -0.8f;
float ycparam = 0.165f;
float inc = 0.001f;
while (window.ProcessEvent())
{
// ------------------------------------------------------------
double currentTime = GLTestUtil::CurrentTimeMilli();
double elapsedTime = currentTime - prevTime;
timeSum += elapsedTime;
frameCount++;
if (frameCount >= 13)
{
fps = 1000.0 * 13.0 / timeSum;
timeSum = 0.0;
frameCount = 0;
}
prevTime = currentTime;
window.SetTitle((boost::format("GLInteropTest_Julia [FPS %.1f]") % fps).str());
// ------------------------------------------------------------
double elapsed = GLTestUtil::CurrentTimeMilli() - start;
if (elapsed >= 1000.0)
{
break;
}
xcparam += inc;
if (xcparam > -0.799f || xcparam < -0.811f)
{
inc *= -1.0f;
}
// ------------------------------------------------------------
HandleCudaError(cudaGraphicsMapResources(1, &cudaPbo, NULL));
// Get device pointer
uchar4* devPtr;
size_t bufferSize;
HandleCudaError(cudaGraphicsResourceGetMappedPointer((void**)&devPtr, &bufferSize, cudaPbo));
Run_GLInteropTestJuliaKernel(bufWidth, bufHeight, prop.multiProcessorCount, xcparam, ycparam, devPtr);
HandleCudaError(cudaGraphicsUnmapResources(1, &cudaPbo, NULL));
texture.Replace(&pbo, glm::ivec4(0, 0, bufWidth, bufHeight), GL_RGBA, GL_UNSIGNED_BYTE);
// ------------------------------------------------------------
glClearBufferfv(GL_COLOR, 0, glm::value_ptr(glm::vec4(0.0f)));
glViewportIndexedfv(0, glm::value_ptr(glm::vec4(0, 0, width, height)));
shader.Begin();
shader.SetUniform("tex", 0);
texture.Bind();
vao.Draw(GL_TRIANGLES, &ibo);
texture.Unbind();
shader.End();
context.SwapBuffers();
}
cudaDeviceReset();
}
catch (const GLException& e)
{
FAIL() << GLTestUtil::PrintGLException(e);
}
}
void
GridAnim::addGeometry (const GLTexture::MatrixList &matrix,
const CompRegion ®ion,
const CompRegion &clip,
unsigned int maxGridWidth,
unsigned int maxGridHeight)
{
if (region.isEmpty ()) // nothing to do
return;
GLfloat *v, *vMax;
bool notUsing3dCoords = !using3D ();
CompRect outRect (mAWindow->savedRectsValid () ?
mAWindow->savedOutRect () :
mWindow->outputRect ());
CompWindowExtents outExtents (mAWindow->savedRectsValid () ?
mAWindow->savedOutExtents () :
mWindow->output ());
// window output (contents + decorations + shadows) coordinates and size
int ox = outRect.x ();
int oy = outRect.y ();
int owidth = outRect.width ();
int oheight = outRect.height ();
// to be used if event is shade/unshade
float winContentsY = oy + outExtents.top;
float winContentsHeight = oheight - outExtents.top - outExtents.bottom;
GLWindow *gWindow = GLWindow::get (mWindow);
GLVertexBuffer *vertexBuffer = gWindow->vertexBuffer ();
int vSize = vertexBuffer->getVertexStride ();
// Indentation kept to provide a clean diff with the old code, for now...
{
int y1 = outRect.y1 ();
int x2 = outRect.x2 ();
int y2 = outRect.y2 ();
float gridW = (float)owidth / (mGridWidth - 1);
float gridH;
if (mCurWindowEvent == WindowEventShade ||
mCurWindowEvent == WindowEventUnshade)
{
if (y1 < winContentsY) // if at top part
gridH = mDecorTopHeight;
else if (y2 > winContentsY + winContentsHeight) // if at bottom
gridH = mDecorBottomHeight;
else // in window contents (only in Y coords)
{
float winContentsHeight =
oheight - (mDecorTopHeight + mDecorBottomHeight);
gridH = winContentsHeight / (mGridHeight - 3);
}
}
else
gridH = (float)oheight / (mGridHeight - 1);
int oldCount = vertexBuffer->countVertices ();
gWindow->glAddGeometry (matrix, region, clip, gridW, gridH);
int newCount = vertexBuffer->countVertices ();
v = vertexBuffer->getVertices () + (oldCount * vSize);
vMax = vertexBuffer->getVertices () + (newCount * vSize);
float x, y, topiyFloat;
// For each vertex
for (; v < vMax; v += vSize)
{
x = v[0];
y = v[1];
if (y > y2)
y = y2;
if (mCurWindowEvent == WindowEventShade ||
mCurWindowEvent == WindowEventUnshade)
{
if (y1 < winContentsY) // if at top part
{
topiyFloat = (y - oy) / mDecorTopHeight;
topiyFloat = MIN (topiyFloat, 0.999); // avoid 1.0
}
else if (y2 > winContentsY + winContentsHeight) // if at bottom
topiyFloat = (mGridHeight - 2) +
(mDecorBottomHeight ? (y - winContentsY -
winContentsHeight) /
mDecorBottomHeight : 0);
else // in window contents (only in Y coords)
topiyFloat = (mGridHeight - 3) *
(y - winContentsY) / winContentsHeight + 1;
}
else
topiyFloat = (mGridHeight - 1) * (y - oy) / oheight;
// topiy should be at most (mGridHeight - 2)
int topiy = (int)(topiyFloat + 1e-4);
if (topiy == mGridHeight - 1)
--topiy;
int bottomiy = topiy + 1;
float iny = topiyFloat - topiy;
float inyRest = 1 - iny;
// End of calculations for y
// Indentation kept to provide a clean diff with the old code...
{
if (x > x2)
x = x2;
// find containing grid cell (leftix rightix) x (topiy bottomiy)
float leftixFloat = (mGridWidth - 1) * (x - ox) / owidth;
int leftix = (int)(leftixFloat + 1e-4);
if (leftix == mGridWidth - 1)
--leftix;
int rightix = leftix + 1;
// GridModel::GridObjects that are at top, bottom, left, right corners of quad
GridModel::GridObject *objToTopLeft =
&(mModel->mObjects[topiy * mGridWidth + leftix]);
GridModel::GridObject *objToTopRight =
&(mModel->mObjects[topiy * mGridWidth + rightix]);
GridModel::GridObject *objToBottomLeft =
&(mModel->mObjects[bottomiy * mGridWidth + leftix]);
GridModel::GridObject *objToBottomRight =
&(mModel->mObjects[bottomiy * mGridWidth + rightix]);
Point3d &objToTopLeftPos = objToTopLeft->mPosition;
Point3d &objToTopRightPos = objToTopRight->mPosition;
Point3d &objToBottomLeftPos = objToBottomLeft->mPosition;
Point3d &objToBottomRightPos = objToBottomRight->mPosition;
// find position in cell by taking remainder of flooring
float inx = leftixFloat - leftix;
float inxRest = 1 - inx;
// Interpolate to find deformed coordinates
float hor1x = (inxRest * objToTopLeftPos.x () +
inx * objToTopRightPos.x ());
float hor1y = (inxRest * objToTopLeftPos.y () +
inx * objToTopRightPos.y ());
float hor1z = (notUsing3dCoords ? 0 :
inxRest * objToTopLeftPos.z () +
inx * objToTopRightPos.z ());
float hor2x = (inxRest * objToBottomLeftPos.x () +
inx * objToBottomRightPos.x ());
float hor2y = (inxRest * objToBottomLeftPos.y () +
inx * objToBottomRightPos.y ());
float hor2z = (notUsing3dCoords ? 0 :
inxRest * objToBottomLeftPos.z () +
inx * objToBottomRightPos.z ());
float deformedX = inyRest * hor1x + iny * hor2x;
float deformedY = inyRest * hor1y + iny * hor2y;
float deformedZ = inyRest * hor1z + iny * hor2z;
v[0] = deformedX;
v[1] = deformedY;
v[2] = deformedZ;
}
}
}
}
bool
FireScreen::glPaintOutput (const GLScreenPaintAttrib &attrib,
const GLMatrix &transform,
const CompRegion ®ion,
CompOutput *output,
unsigned int mask)
{
bool status = gScreen->glPaintOutput (attrib, transform, region, output, mask);
if ((!init && ps.active) || brightness < 1.0)
{
GLMatrix sTransform = transform;
sTransform.toScreenSpace (output, -DEFAULT_Z_CAMERA);
if (brightness < 1.0)
{
/* cover the screen with a rectangle and darken it
* (coded as two GL_TRIANGLES for GLES compatibility)
*/
GLfloat vertices[18];
GLushort colors[24];
vertices[0] = (GLfloat)output->region ()->extents.x1;
vertices[1] = (GLfloat)output->region ()->extents.y1;
vertices[2] = 0.0f;
vertices[3] = (GLfloat)output->region ()->extents.x1;
vertices[4] = (GLfloat)output->region ()->extents.y2;
vertices[5] = 0.0f;
vertices[6] = (GLfloat)output->region ()->extents.x2;
vertices[7] = (GLfloat)output->region ()->extents.y2;
vertices[8] = 0.0f;
vertices[9] = (GLfloat)output->region ()->extents.x2;
vertices[10] = (GLfloat)output->region ()->extents.y2;
vertices[11] = 0.0f;
vertices[12] = (GLfloat)output->region ()->extents.x2;
vertices[13] = (GLfloat)output->region ()->extents.y1;
vertices[14] = 0.0f;
vertices[15] = (GLfloat)output->region ()->extents.x1;
vertices[16] = (GLfloat)output->region ()->extents.y1;
vertices[17] = 0.0f;
for (int i = 0; i <= 5; ++i)
{
colors[i*4+0] = 0;
colors[i*4+1] = 0;
colors[i*4+2] = 0;
colors[i*4+3] = (1.0 - brightness) * 65535.0f;
}
GLVertexBuffer *stream = GLVertexBuffer::streamingBuffer ();
GLboolean glBlendEnabled = glIsEnabled (GL_BLEND);
if (!glBlendEnabled)
glEnable (GL_BLEND);
stream->begin (GL_TRIANGLES);
stream->addVertices (6, vertices);
stream->addColors (6, colors);
if (stream->end ())
stream->render (sTransform);
/* only disable blending if it was already disabled */
if (!glBlendEnabled)
glDisable (GL_BLEND);
}
if (!init && ps.active)
ps.drawParticles (sTransform);
}
return status;
}
void CoverSwitchEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data)
{
effects->paintScreen(mask, region, data);
if (mActivated || stop || stopRequested) {
QList< EffectWindow* > tempList = currentWindowList;
int index = tempList.indexOf(selected_window);
if (animation || start || stop) {
if (!start && !stop) {
if (direction == Right)
index++;
else
index--;
if (index < 0)
index = tempList.count() + index;
if (index >= tempList.count())
index = index % tempList.count();
}
foreach (Direction direction, scheduled_directions) {
if (direction == Right)
index++;
else
index--;
if (index < 0)
index = tempList.count() + index;
if (index >= tempList.count())
index = index % tempList.count();
}
}
int leftIndex = index - 1;
if (leftIndex < 0)
leftIndex = tempList.count() - 1;
int rightIndex = index + 1;
if (rightIndex == tempList.count())
rightIndex = 0;
EffectWindow* frontWindow = tempList[ index ];
leftWindows.clear();
rightWindows.clear();
bool evenWindows = (tempList.count() % 2 == 0) ? true : false;
int leftWindowCount = 0;
if (evenWindows)
leftWindowCount = tempList.count() / 2 - 1;
else
leftWindowCount = (tempList.count() - 1) / 2;
for (int i = 0; i < leftWindowCount; i++) {
int tempIndex = (leftIndex - i);
if (tempIndex < 0)
tempIndex = tempList.count() + tempIndex;
leftWindows.prepend(tempList[ tempIndex ]);
}
int rightWindowCount = 0;
if (evenWindows)
rightWindowCount = tempList.count() / 2;
else
rightWindowCount = (tempList.count() - 1) / 2;
for (int i = 0; i < rightWindowCount; i++) {
int tempIndex = (rightIndex + i) % tempList.count();
rightWindows.prepend(tempList[ tempIndex ]);
}
if (reflection) {
// no reflections during start and stop animation
// except when using a shader
if ((!start && !stop) || effects->compositingType() == OpenGL2Compositing)
paintScene(frontWindow, leftWindows, rightWindows, true);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// we can use a huge scale factor (needed to calculate the rearground vertices)
// as we restrict with a PaintClipper painting on the current screen
float reflectionScaleFactor = 100000 * tan(60.0 * M_PI / 360.0f) / area.width();
const float width = area.width();
const float height = area.height();
float vertices[] = {
-width * 0.5f, height, 0.0,
width * 0.5f, height, 0.0,
width*reflectionScaleFactor, height, -5000,
-width*reflectionScaleFactor, height, -5000
};
// foreground
if (start) {
mirrorColor[0][3] = timeLine.currentValue();
} else if (stop) {
mirrorColor[0][3] = 1.0 - timeLine.currentValue();
} else {
mirrorColor[0][3] = 1.0;
}
int y = 0;
// have to adjust the y values to fit OpenGL
// in OpenGL y==0 is at bottom, in Qt at top
if (effects->numScreens() > 1) {
QRect fullArea = effects->clientArea(FullArea, 0, 1);
if (fullArea.height() != area.height()) {
if (area.y() == 0)
y = fullArea.height() - area.height();
else
y = fullArea.height() - area.y() - area.height();
}
}
// use scissor to restrict painting of the reflection plane to current screen
glScissor(area.x(), y, area.width(), area.height());
glEnable(GL_SCISSOR_TEST);
if (m_reflectionShader && m_reflectionShader->isValid()) {
ShaderManager::instance()->pushShader(m_reflectionShader);
QMatrix4x4 windowTransformation;
windowTransformation.translate(area.x() + area.width() * 0.5f, 0.0, 0.0);
m_reflectionShader->setUniform("windowTransformation", windowTransformation);
m_reflectionShader->setUniform("u_frontColor", QVector4D(mirrorColor[0][0], mirrorColor[0][1], mirrorColor[0][2], mirrorColor[0][3]));
m_reflectionShader->setUniform("u_backColor", QVector4D(mirrorColor[1][0], mirrorColor[1][1], mirrorColor[1][2], mirrorColor[1][3]));
// TODO: make this one properly
QVector<float> verts;
QVector<float> texcoords;
verts.reserve(18);
texcoords.reserve(12);
texcoords << 1.0 << 0.0;
verts << vertices[6] << vertices[7] << vertices[8];
texcoords << 1.0 << 0.0;
verts << vertices[9] << vertices[10] << vertices[11];
texcoords << 0.0 << 0.0;
verts << vertices[0] << vertices[1] << vertices[2];
texcoords << 0.0 << 0.0;
verts << vertices[0] << vertices[1] << vertices[2];
texcoords << 0.0 << 0.0;
verts << vertices[3] << vertices[4] << vertices[5];
texcoords << 1.0 << 0.0;
verts << vertices[6] << vertices[7] << vertices[8];
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setData(6, 3, verts.data(), texcoords.data());
vbo->render(GL_TRIANGLES);
ShaderManager::instance()->popShader();
}
glDisable(GL_SCISSOR_TEST);
glDisable(GL_BLEND);
}
paintScene(frontWindow, leftWindows, rightWindows);
// Render the caption frame
if (windowTitle) {
double opacity = 1.0;
if (start)
opacity = timeLine.currentValue();
else if (stop)
opacity = 1.0 - timeLine.currentValue();
if (animation)
captionFrame->setCrossFadeProgress(timeLine.currentValue());
captionFrame->render(region, opacity);
}
}
void CoverSwitchEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data)
{
effects->paintScreen(mask, region, data);
if (mActivated || stop || stopRequested) {
QMatrix4x4 origProjection;
QMatrix4x4 origModelview;
ShaderManager *shaderManager = ShaderManager::instance();
if (effects->numScreens() > 1) {
// unfortunatelly we have to change the projection matrix in dual screen mode
QRect fullRect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
float fovy = 60.0f;
float aspect = 1.0f;
float zNear = 0.1f;
float zFar = 100.0f;
float ymax = zNear * tan(fovy * M_PI / 360.0f);
float ymin = -ymax;
float xmin = ymin * aspect;
float xmax = ymax * aspect;
float xTranslate = 0.0;
float yTranslate = 0.0;
float xminFactor = 1.0;
float xmaxFactor = 1.0;
float yminFactor = 1.0;
float ymaxFactor = 1.0;
if (area.x() == 0 && area.width() != fullRect.width()) {
// horizontal layout: left screen
xminFactor = (float)area.width() / (float)fullRect.width();
xmaxFactor = ((float)fullRect.width() - (float)area.width() * 0.5f) / ((float)fullRect.width() * 0.5f);
xTranslate = (float)fullRect.width() * 0.5f - (float)area.width() * 0.5f;
}
if (area.x() != 0 && area.width() != fullRect.width()) {
// horizontal layout: right screen
xminFactor = ((float)fullRect.width() - (float)area.width() * 0.5f) / ((float)fullRect.width() * 0.5f);
xmaxFactor = (float)area.width() / (float)fullRect.width();
xTranslate = (float)fullRect.width() * 0.5f - (float)area.width() * 0.5f;
}
if (area.y() == 0 && area.height() != fullRect.height()) {
// vertical layout: top screen
yminFactor = ((float)fullRect.height() - (float)area.height() * 0.5f) / ((float)fullRect.height() * 0.5f);
ymaxFactor = (float)area.height() / (float)fullRect.height();
yTranslate = (float)fullRect.height() * 0.5f - (float)area.height() * 0.5f;
}
if (area.y() != 0 && area.height() != fullRect.height()) {
// vertical layout: bottom screen
yminFactor = (float)area.height() / (float)fullRect.height();
ymaxFactor = ((float)fullRect.height() - (float)area.height() * 0.5f) / ((float)fullRect.height() * 0.5f);
yTranslate = (float)fullRect.height() * 0.5f - (float)area.height() * 0.5f;
}
QMatrix4x4 projection;
projection.frustum(xmin * xminFactor, xmax * xmaxFactor, ymin * yminFactor, ymax * ymaxFactor, zNear, zFar);
QMatrix4x4 modelview;
modelview.translate(xTranslate, yTranslate, 0.0);
if (shaderManager->isShaderBound()) {
GLShader *shader = shaderManager->pushShader(ShaderManager::GenericShader);
origProjection = shader->getUniformMatrix4x4("projection");
origModelview = shader->getUniformMatrix4x4("modelview");
shader->setUniform("projection", projection);
shader->setUniform("modelview", origModelview * modelview);
shaderManager->popShader();
} else {
#ifndef KWIN_HAVE_OPENGLES
glMatrixMode(GL_PROJECTION);
pushMatrix();
loadMatrix(projection);
glMatrixMode(GL_MODELVIEW);
pushMatrix(modelview);
#endif
}
}
QList< EffectWindow* > tempList = currentWindowList;
int index = tempList.indexOf(selected_window);
if (animation || start || stop) {
if (!start && !stop) {
if (direction == Right)
index++;
else
index--;
if (index < 0)
index = tempList.count() + index;
if (index >= tempList.count())
index = index % tempList.count();
}
foreach (Direction direction, scheduled_directions) {
if (direction == Right)
index++;
else
index--;
if (index < 0)
index = tempList.count() + index;
if (index >= tempList.count())
index = index % tempList.count();
}
}
int leftIndex = index - 1;
if (leftIndex < 0)
leftIndex = tempList.count() - 1;
int rightIndex = index + 1;
if (rightIndex == tempList.count())
rightIndex = 0;
EffectWindow* frontWindow = tempList[ index ];
leftWindows.clear();
rightWindows.clear();
bool evenWindows = (tempList.count() % 2 == 0) ? true : false;
int leftWindowCount = 0;
if (evenWindows)
leftWindowCount = tempList.count() / 2 - 1;
else
leftWindowCount = (tempList.count() - 1) / 2;
for (int i = 0; i < leftWindowCount; i++) {
int tempIndex = (leftIndex - i);
if (tempIndex < 0)
tempIndex = tempList.count() + tempIndex;
leftWindows.prepend(tempList[ tempIndex ]);
}
int rightWindowCount = 0;
if (evenWindows)
rightWindowCount = tempList.count() / 2;
else
rightWindowCount = (tempList.count() - 1) / 2;
for (int i = 0; i < rightWindowCount; i++) {
int tempIndex = (rightIndex + i) % tempList.count();
rightWindows.prepend(tempList[ tempIndex ]);
}
if (reflection) {
// no reflections during start and stop animation
// except when using a shader
if ((!start && !stop) || ShaderManager::instance()->isValid())
paintScene(frontWindow, leftWindows, rightWindows, true);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
#ifndef KWIN_HAVE_OPENGLES
glPolygonMode(GL_FRONT, GL_FILL);
#endif
QRect fullRect = effects->clientArea(FullArea, activeScreen, effects->currentDesktop());
// we can use a huge scale factor (needed to calculate the rearground vertices)
// as we restrict with a PaintClipper painting on the current screen
float reflectionScaleFactor = 100000 * tan(60.0 * M_PI / 360.0f) / area.width();
float vertices[] = {
-area.width() * 0.5f, area.height(), 0.0,
area.width() * 0.5f, area.height(), 0.0,
(float)area.width()*reflectionScaleFactor, area.height(), -5000,
-(float)area.width()*reflectionScaleFactor, area.height(), -5000
};
// foreground
if (start) {
mirrorColor[0][3] = timeLine.currentValue();
} else if (stop) {
mirrorColor[0][3] = 1.0 - timeLine.currentValue();
} else {
mirrorColor[0][3] = 1.0;
}
int y = 0;
// have to adjust the y values to fit OpenGL
// in OpenGL y==0 is at bottom, in Qt at top
if (effects->numScreens() > 1) {
QRect fullArea = effects->clientArea(FullArea, 0, 1);
if (fullArea.height() != area.height()) {
if (area.y() == 0)
y = fullArea.height() - area.height();
else
y = fullArea.height() - area.y() - area.height();
}
}
// use scissor to restrict painting of the reflection plane to current screen
glScissor(area.x(), y, area.width(), area.height());
glEnable(GL_SCISSOR_TEST);
if (shaderManager->isValid() && m_reflectionShader->isValid()) {
shaderManager->pushShader(m_reflectionShader);
QMatrix4x4 windowTransformation;
windowTransformation.translate(area.x() + area.width() * 0.5f, 0.0, 0.0);
m_reflectionShader->setUniform("windowTransformation", windowTransformation);
m_reflectionShader->setUniform("u_frontColor", QVector4D(mirrorColor[0][0], mirrorColor[0][1], mirrorColor[0][2], mirrorColor[0][3]));
m_reflectionShader->setUniform("u_backColor", QVector4D(mirrorColor[1][0], mirrorColor[1][1], mirrorColor[1][2], mirrorColor[1][3]));
// TODO: make this one properly
QVector<float> verts;
QVector<float> texcoords;
verts.reserve(18);
texcoords.reserve(12);
texcoords << 1.0 << 0.0;
verts << vertices[6] << vertices[7] << vertices[8];
texcoords << 1.0 << 0.0;
verts << vertices[9] << vertices[10] << vertices[11];
texcoords << 0.0 << 0.0;
verts << vertices[0] << vertices[1] << vertices[2];
texcoords << 0.0 << 0.0;
verts << vertices[0] << vertices[1] << vertices[2];
texcoords << 0.0 << 0.0;
verts << vertices[3] << vertices[4] << vertices[5];
texcoords << 1.0 << 0.0;
verts << vertices[6] << vertices[7] << vertices[8];
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setData(6, 3, verts.data(), texcoords.data());
vbo->render(GL_TRIANGLES);
shaderManager->popShader();
} else {
#ifndef KWIN_HAVE_OPENGLES
glPushMatrix();
if (effects->numScreens() > 1 && area.x() != fullRect.x()) {
// have to change the reflection area in horizontal layout and right screen
glTranslatef(-area.x(), 0.0, 0.0);
}
glTranslatef(area.x() + area.width() * 0.5f, 0.0, 0.0);
glColor4fv(mirrorColor[0]);
glBegin(GL_POLYGON);
glVertex3f(vertices[0], vertices[1], vertices[2]);
glVertex3f(vertices[3], vertices[4], vertices[5]);
// rearground
glColor4fv(mirrorColor[1]);
glVertex3f(vertices[6], vertices[7], vertices[8]);
glVertex3f(vertices[9], vertices[10], vertices[11]);
glEnd();
glPopMatrix();
#endif
}
glDisable(GL_SCISSOR_TEST);
glDisable(GL_BLEND);
}
paintScene(frontWindow, leftWindows, rightWindows);
if (effects->numScreens() > 1) {
if (shaderManager->isShaderBound()) {
GLShader *shader = shaderManager->pushShader(ShaderManager::GenericShader);
shader->setUniform("projection", origProjection);
shader->setUniform("modelview", origModelview);
shaderManager->popShader();
} else {
#ifndef KWIN_HAVE_OPENGLES
popMatrix();
// revert change of projection matrix
glMatrixMode(GL_PROJECTION);
popMatrix();
glMatrixMode(GL_MODELVIEW);
#endif
}
}
// Render the caption frame
if (windowTitle) {
double opacity = 1.0;
if (start)
opacity = timeLine.currentValue();
else if (stop)
opacity = 1.0 - timeLine.currentValue();
if (animation)
captionFrame->setCrossFadeProgress(timeLine.currentValue());
captionFrame->render(region, opacity);
}
if ((thumbnails && (!dynamicThumbnails ||
(dynamicThumbnails && currentWindowList.size() >= thumbnailWindows)))
&& !(start || stop)) {
BoxSwitchEffectProxy *proxy =
static_cast<BoxSwitchEffectProxy*>(effects->getProxy("boxswitch"));
if (proxy)
proxy->paintWindowsBox(region);
}
}
void GLDevice::RDUnlockBuffer(RDVertexBufferP iBuffer)
{
GLVertexBuffer * buffer = static_cast<GLVertexBuffer *>(iBuffer);
buffer->Unlock(GetCurrentContext());
}
void ShowFpsEffect::paintGL(int fps)
{
int x = this->x;
int y = this->y;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// TODO painting first the background white and then the contents
// means that the contents also blend with the background, I guess
ShaderBinder binder(ShaderManager::ColorShader);
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
QColor color(255, 255, 255);
color.setAlphaF(alpha);
vbo->setColor(color);
QVector<float> verts;
verts.reserve(12);
verts << x + 2 * NUM_PAINTS + FPS_WIDTH << y;
verts << x << y;
verts << x << y + MAX_TIME;
verts << x << y + MAX_TIME;
verts << x + 2 * NUM_PAINTS + FPS_WIDTH << y + MAX_TIME;
verts << x + 2 * NUM_PAINTS + FPS_WIDTH << y;
vbo->setData(6, 2, verts.constData(), NULL);
vbo->render(GL_TRIANGLES);
y += MAX_TIME; // paint up from the bottom
color.setRed(0);
color.setGreen(0);
vbo->setColor(color);
verts.clear();
verts << x + FPS_WIDTH << y - fps;
verts << x << y - fps;
verts << x << y;
verts << x << y;
verts << x + FPS_WIDTH << y;
verts << x + FPS_WIDTH << y - fps;
vbo->setData(6, 2, verts.constData(), NULL);
vbo->render(GL_TRIANGLES);
color.setBlue(0);
vbo->setColor(color);
QVector<float> vertices;
for (int i = 10;
i < MAX_TIME;
i += 10) {
vertices << x << y - i;
vertices << x + FPS_WIDTH << y - i;
}
vbo->setData(vertices.size() / 2, 2, vertices.constData(), NULL);
vbo->render(GL_LINES);
x += FPS_WIDTH;
// Paint FPS graph
paintFPSGraph(x, y);
x += NUM_PAINTS;
// Paint amount of rendered pixels graph
paintDrawSizeGraph(x, y);
// Paint FPS numerical value
if (fpsTextRect.isValid()) {
fpsText.reset(new GLTexture(fpsTextImage(fps)));
fpsText->bind();
ShaderBinder binder(ShaderManager::SimpleShader);
if (effects->compositingType() == OpenGL2Compositing) {
binder.shader()->setUniform("offset", QVector2D(0, 0));
}
fpsText->render(QRegion(fpsTextRect), fpsTextRect);
fpsText->unbind();
effects->addRepaint(fpsTextRect);
}
// Paint paint sizes
glDisable(GL_BLEND);
}
void
GLScreen::glPaintCompositedOutput (const CompRegion ®ion,
GLFramebufferObject *fbo,
unsigned int mask)
{
WRAPABLE_HND_FUNCTN (glPaintCompositedOutput, region, fbo, mask)
GLMatrix sTransform;
const GLTexture::Matrix & texmatrix = fbo->tex ()->matrix ();
GLVertexBuffer *streamingBuffer = GLVertexBuffer::streamingBuffer ();
streamingBuffer->begin (GL_TRIANGLES);
if (mask & COMPOSITE_SCREEN_DAMAGE_ALL_MASK)
{
GLfloat tx1 = COMP_TEX_COORD_X (texmatrix, 0.0f);
GLfloat tx2 = COMP_TEX_COORD_X (texmatrix, screen->width ());
GLfloat ty1 = 1.0 - COMP_TEX_COORD_Y (texmatrix, 0.0f);
GLfloat ty2 = 1.0 - COMP_TEX_COORD_Y (texmatrix, screen->height ());
const GLfloat vertexData[] = {
0.0f, 0.0f, 0.0f,
0.0f, (float)screen->height (), 0.0f,
(float)screen->width (), 0.0f, 0.0f,
0.0f, (float)screen->height (), 0.0f,
(float)screen->width (), (float)screen->height (), 0.0f,
(float)screen->width (), 0.0f, 0.0f,
};
const GLfloat textureData[] = {
tx1, ty1,
tx1, ty2,
tx2, ty1,
tx1, ty2,
tx2, ty2,
tx2, ty1,
};
streamingBuffer->addVertices (6, &vertexData[0]);
streamingBuffer->addTexCoords (0, 6, &textureData[0]);
}
else
{
BoxPtr pBox = const_cast <Region> (region.handle ())->rects;
int nBox = const_cast <Region> (region.handle ())->numRects;
while (nBox--)
{
GLfloat tx1 = COMP_TEX_COORD_X (texmatrix, pBox->x1);
GLfloat tx2 = COMP_TEX_COORD_X (texmatrix, pBox->x2);
GLfloat ty1 = 1.0 - COMP_TEX_COORD_Y (texmatrix, pBox->y1);
GLfloat ty2 = 1.0 - COMP_TEX_COORD_Y (texmatrix, pBox->y2);
const GLfloat vertexData[] = {
(float)pBox->x1, (float)pBox->y1, 0.0f,
(float)pBox->x1, (float)pBox->y2, 0.0f,
(float)pBox->x2, (float)pBox->y1, 0.0f,
(float)pBox->x1, (float)pBox->y2, 0.0f,
(float)pBox->x2, (float)pBox->y2, 0.0f,
(float)pBox->x2, (float)pBox->y1, 0.0f,
};
const GLfloat textureData[] = {
tx1, ty1,
tx1, ty2,
tx2, ty1,
tx1, ty2,
tx2, ty2,
tx2, ty1,
};
streamingBuffer->addVertices (6, &vertexData[0]);
streamingBuffer->addTexCoords (0, 6, &textureData[0]);
pBox++;
}
}
streamingBuffer->end ();
fbo->tex ()->enable (GLTexture::Fast);
sTransform.toScreenSpace (&screen->fullscreenOutput (), -DEFAULT_Z_CAMERA);
streamingBuffer->render (sTransform);
fbo->tex ()->disable ();
}
void SnapHelperEffect::postPaintScreen()
{
effects->postPaintScreen();
if (m_timeline.currentValue() != 0.0) {
// Display the guide
if (effects->isOpenGLCompositing()) {
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setUseColor(true);
ShaderBinder binder(ShaderManager::ColorShader);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
QColor color;
color.setRedF(0.5);
color.setGreenF(0.5);
color.setBlueF(0.5);
color.setAlphaF(m_timeline.currentValue() * 0.5);
vbo->setColor(color);
glLineWidth(4.0);
QVector<float> verts;
verts.reserve(effects->numScreens() * 24);
for (int i = 0; i < effects->numScreens(); ++i) {
const QRect& rect = effects->clientArea(ScreenArea, i, 0);
int midX = rect.x() + rect.width() / 2;
int midY = rect.y() + rect.height() / 2 ;
int halfWidth = m_window->width() / 2;
int halfHeight = m_window->height() / 2;
// Center lines
verts << rect.x() + rect.width() / 2 << rect.y();
verts << rect.x() + rect.width() / 2 << rect.y() + rect.height();
verts << rect.x() << rect.y() + rect.height() / 2;
verts << rect.x() + rect.width() << rect.y() + rect.height() / 2;
// Window outline
// The +/- 2 is to prevent line overlap
verts << midX - halfWidth + 2 << midY - halfHeight;
verts << midX + halfWidth + 2 << midY - halfHeight;
verts << midX + halfWidth << midY - halfHeight + 2;
verts << midX + halfWidth << midY + halfHeight + 2;
verts << midX + halfWidth - 2 << midY + halfHeight;
verts << midX - halfWidth - 2 << midY + halfHeight;
verts << midX - halfWidth << midY + halfHeight - 2;
verts << midX - halfWidth << midY - halfHeight - 2;
}
vbo->setData(verts.count() / 2, 2, verts.data(), NULL);
vbo->render(GL_LINES);
glDisable(GL_BLEND);
glLineWidth(1.0);
}
if ( effects->compositingType() == XRenderCompositing ) {
#ifdef KWIN_HAVE_XRENDER_COMPOSITING
for (int i = 0; i < effects->numScreens(); ++i) {
const QRect& rect = effects->clientArea( ScreenArea, i, 0 );
int midX = rect.x() + rect.width() / 2;
int midY = rect.y() + rect.height() / 2 ;
int halfWidth = m_window->width() / 2;
int halfHeight = m_window->height() / 2;
xcb_rectangle_t rects[6];
// Center lines
rects[0].x = rect.x() + rect.width() / 2 - 2;
rects[0].y = rect.y();
rects[0].width = 4;
rects[0].height = rect.height();
rects[1].x = rect.x();
rects[1].y = rect.y() + rect.height() / 2 - 2;
rects[1].width = rect.width();
rects[1].height = 4;
// Window outline
// The +/- 4 is to prevent line overlap
rects[2].x = midX - halfWidth + 4;
rects[2].y = midY - halfHeight;
rects[2].width = 2*halfWidth - 4;
rects[2].height = 4;
rects[3].x = midX + halfWidth - 4;
rects[3].y = midY - halfHeight + 4;
rects[3].width = 4;
rects[3].height = 2*halfHeight - 4;
rects[4].x = midX - halfWidth;
rects[4].y = midY + halfHeight - 4;
rects[4].width = 2*halfWidth - 4;
rects[4].height = 4;
rects[5].x = midX - halfWidth;
rects[5].y = midY - halfHeight;
rects[5].width = 4;
rects[5].height = 2*halfHeight - 4;
xcb_render_fill_rectangles(xcbConnection(), XCB_RENDER_PICT_OP_OVER, effects->xrenderBufferPicture(),
preMultiply(QColor(128, 128, 128, m_timeline.currentValue()*128)), 6, rects);
}
#endif
}
if (effects->compositingType() == QPainterCompositing) {
QPainter *painter = effects->scenePainter();
painter->save();
QColor color;
color.setRedF(0.5);
color.setGreenF(0.5);
color.setBlueF(0.5);
color.setAlphaF(m_timeline.currentValue() * 0.5);
QPen pen(color);
pen.setWidth(4);
painter->setPen(pen);
painter->setBrush(Qt::NoBrush);
for (int i = 0; i < effects->numScreens(); ++i) {
const QRect &rect = effects->clientArea(ScreenArea, i, 0);
// Center lines
painter->drawLine(rect.center().x(), rect.y(), rect.center().x(), rect.y() + rect.height());
painter->drawLine(rect.x(), rect.center().y(), rect.x() + rect.width(), rect.center().y());
// window outline
QRect windowRect(rect.center(), m_window->geometry().size());
painter->drawRect(windowRect.translated(-windowRect.width()/2, -windowRect.height()/2));
}
painter->restore();
}
} else if (m_window && !m_active) {
if (m_window->isDeleted())
m_window->unrefWindow();
m_window = NULL;
}
}
void
CompText::draw (const GLMatrix &transform,
float x,
float y,
float alpha) const
{
GLint oldBlendSrc, oldBlendDst;
GLushort colorData[4];
GLfloat textureData[8];
GLfloat vertexData[12];
GLVertexBuffer *streamingBuffer = GLVertexBuffer::streamingBuffer ();
if (texture.empty ())
return;
#ifdef USE_GLES
GLint oldBlendSrcAlpha, oldBlendDstAlpha;
glGetIntegerv (GL_BLEND_SRC_RGB, &oldBlendSrc);
glGetIntegerv (GL_BLEND_DST_RGB, &oldBlendDst);
glGetIntegerv (GL_BLEND_SRC_ALPHA, &oldBlendSrcAlpha);
glGetIntegerv (GL_BLEND_DST_ALPHA, &oldBlendDstAlpha);
#else
glGetIntegerv (GL_BLEND_SRC, &oldBlendSrc);
glGetIntegerv (GL_BLEND_DST, &oldBlendDst);
GLboolean wasBlend;
wasBlend = glIsEnabled (GL_BLEND);
if (!wasBlend)
glEnable (GL_BLEND);
#endif
glBlendFunc (GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
colorData[0] = alpha * 65535;
colorData[1] = alpha * 65535;
colorData[2] = alpha * 65535;
colorData[3] = alpha * 65535;
for (unsigned int i = 0; i < texture.size (); i++)
{
GLTexture *tex = texture[i];
GLTexture::Matrix m = tex->matrix ();
tex->enable (GLTexture::Good);
streamingBuffer->begin (GL_TRIANGLE_STRIP);
vertexData[0] = x;
vertexData[1] = y - height;
vertexData[2] = 0;
vertexData[3] = x;
vertexData[4] = y;
vertexData[5] = 0;
vertexData[6] = x + width;
vertexData[7] = y - height;
vertexData[8] = 0;
vertexData[9] = x + width;
vertexData[10] = y;
vertexData[11] = 0;
textureData[0] = COMP_TEX_COORD_X (m, 0);
textureData[1] = COMP_TEX_COORD_Y (m, 0);
textureData[2] = COMP_TEX_COORD_X (m, 0);
textureData[3] = COMP_TEX_COORD_Y (m, height);
textureData[4] = COMP_TEX_COORD_X (m, width);
textureData[5] = COMP_TEX_COORD_Y (m, 0);
textureData[6] = COMP_TEX_COORD_X (m, width);
textureData[7] = COMP_TEX_COORD_Y (m, height);
streamingBuffer->addColors (1, colorData);
streamingBuffer->addVertices (4, vertexData);
streamingBuffer->addTexCoords (0, 4, textureData);
streamingBuffer->end ();
streamingBuffer->render (transform);
tex->disable ();
}
#ifdef USE_GLES
glBlendFuncSeparate (oldBlendSrc, oldBlendDst,
oldBlendSrcAlpha, oldBlendDstAlpha);
#else
if (!wasBlend)
glDisable (GL_BLEND);
glBlendFunc (oldBlendSrc, oldBlendDst);
#endif
}
void ResizeEffect::paintWindow(EffectWindow* w, int mask, QRegion region, WindowPaintData& data)
{
if (m_active && w == m_resizeWindow) {
if (m_features & TextureScale) {
data.xTranslate += m_currentGeometry.x() - m_originalGeometry.x();
data.xScale *= m_currentGeometry.width();
data.xScale /= m_originalGeometry.width();
data.yTranslate += m_currentGeometry.y() - m_originalGeometry.y();
data.yScale *= m_currentGeometry.height();
data.yScale /= m_originalGeometry.height();
}
effects->paintWindow(w, mask, region, data);
if (m_features & Outline) {
QRegion intersection = m_originalGeometry.intersected(m_currentGeometry);
QRegion paintRegion = QRegion(m_originalGeometry).united(m_currentGeometry).subtracted(intersection);
float alpha = 0.8f;
QColor color = KColorScheme(QPalette::Normal, KColorScheme::Selection).background().color();
#ifdef KWIN_HAVE_OPENGL
if (effects->compositingType() == OpenGLCompositing) {
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setUseColor(true);
if (ShaderManager::instance()->isValid()) {
ShaderManager::instance()->pushShader(ShaderManager::ColorShader);
}
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
color.setAlphaF(alpha);
vbo->setColor(color);
QVector<float> verts;
verts.reserve(paintRegion.rects().count() * 12);
foreach (const QRect & r, paintRegion.rects()) {
verts << r.x() + r.width() << r.y();
verts << r.x() << r.y();
verts << r.x() << r.y() + r.height();
verts << r.x() << r.y() + r.height();
verts << r.x() + r.width() << r.y() + r.height();
verts << r.x() + r.width() << r.y();
}
vbo->setData(verts.count() / 2, 2, verts.data(), NULL);
vbo->render(GL_TRIANGLES);
if (ShaderManager::instance()->isValid()) {
ShaderManager::instance()->popShader();
}
glDisable(GL_BLEND);
}
#endif
#ifdef KWIN_HAVE_XRENDER_COMPOSITING
if (effects->compositingType() == XRenderCompositing) {
XRenderColor col;
col.alpha = int(alpha * 0xffff);
col.red = int(alpha * 0xffff * color.red() / 255);
col.green = int(alpha * 0xffff * color.green() / 255);
col.blue = int(alpha * 0xffff * color.blue() / 255);
foreach (const QRect & r, paintRegion.rects())
XRenderFillRectangle(display(), PictOpOver, effects->xrenderBufferPicture(),
&col, r.x(), r.y(), r.width(), r.height());
}
void
MeshGeometry::renderShadow(RenderContext& rc,
double /* clock */) const
{
if (!m_hwBuffersCurrent)
{
realize();
}
// Use an extremely basic material to avoid wasting time
// with pixel shader calculations when we're just interested
// in depth values.
Material simpleMaterial;
rc.bindMaterial(&simpleMaterial);
rc.pushModelView();
rc.scaleModelView(m_meshScale);
// Render all submeshes
GLVertexBuffer* boundVertexBuffer = NULL;
for (unsigned int i = 0; i < m_submeshes.size(); ++i)
{
const Submesh& submesh = *m_submeshes[i];
if (i < m_submeshBuffers.size() && m_submeshBuffers[i])
{
boundVertexBuffer = m_submeshBuffers[i];
rc.bindVertexBuffer(submesh.vertices()->vertexSpec(), m_submeshBuffers[i], submesh.vertices()->stride());
}
else
{
if (boundVertexBuffer)
{
boundVertexBuffer->unbind();
boundVertexBuffer = false;
}
rc.bindVertexArray(submesh.vertices());
}
const vector<PrimitiveBatch*>& batches = submesh.primitiveBatches();
const vector<unsigned int>& materials = submesh.materials();
assert(batches.size() == materials.size());
// Render all batches in the submesh
for (unsigned int j = 0; j < batches.size(); j++)
{
// Skip mostly transparent items when drawing into the shadow
// buffer.
// TODO: Textures with transparent parts aren't handled here
unsigned int materialIndex = materials[j];
if (materialIndex >= m_materials.size() || m_materials[materialIndex]->opacity() > 0.5f)
{
rc.drawPrimitives(*batches[j]);
}
}
}
if (boundVertexBuffer)
{
boundVertexBuffer->unbind();
}
rc.popModelView();
}
void
MeshGeometry::render(RenderContext& rc,
double /* clock */) const
{
if (!m_hwBuffersCurrent)
{
realize();
}
// Track the last used material in order to avoid redundant
// material bindings.
unsigned int lastMaterialIndex = Submesh::DefaultMaterialIndex;
rc.pushModelView();
rc.scaleModelView(m_meshScale);
// Render all submeshes
GLVertexBuffer* boundVertexBuffer = NULL;
for (unsigned int i = 0; i < m_submeshes.size(); ++i)
{
const Submesh& submesh = *m_submeshes[i];
if (i < m_submeshBuffers.size() && m_submeshBuffers[i])
{
boundVertexBuffer = m_submeshBuffers[i];
rc.bindVertexBuffer(submesh.vertices()->vertexSpec(), m_submeshBuffers[i], submesh.vertices()->stride());
}
else
{
if (boundVertexBuffer)
{
boundVertexBuffer->unbind();
boundVertexBuffer = false;
}
rc.bindVertexArray(submesh.vertices());
}
const vector<PrimitiveBatch*>& batches = submesh.primitiveBatches();
const vector<unsigned int>& materials = submesh.materials();
assert(batches.size() == materials.size());
// Render all batches in the submesh
for (unsigned int j = 0; j < batches.size(); j++)
{
// If we have a new material, bind it
unsigned int materialIndex = materials[j];
if (materialIndex != lastMaterialIndex)
{
if (materialIndex < m_materials.size())
{
rc.bindMaterial(m_materials[materialIndex].ptr());
}
lastMaterialIndex = materialIndex;
}
rc.drawPrimitives(*batches[j]);
}
}
if (boundVertexBuffer)
{
boundVertexBuffer->unbind();
}
rc.popModelView();
}
void
ResizeScreen::glPaintRectangle (const GLScreenPaintAttrib &sAttrib,
const GLMatrix &transform,
CompOutput *output,
unsigned short *borderColor,
unsigned short *fillColor)
{
GLVertexBuffer *streamingBuffer = GLVertexBuffer::streamingBuffer ();
BoxRec box;
GLMatrix sTransform (transform);
GLfloat vertexData [12];
GLfloat vertexData2[24];
GLint origSrc, origDst;
GLushort fc[4], bc[4];
#ifdef USE_GLES
GLint origSrcAlpha, origDstAlpha;
glGetIntegerv (GL_BLEND_SRC_RGB, &origSrc);
glGetIntegerv (GL_BLEND_DST_RGB, &origDst);
glGetIntegerv (GL_BLEND_SRC_ALPHA, &origSrcAlpha);
glGetIntegerv (GL_BLEND_DST_ALPHA, &origDstAlpha);
#else
glGetIntegerv (GL_BLEND_SRC, &origSrc);
glGetIntegerv (GL_BLEND_DST, &origDst);
#endif
/* Premultiply the alpha values */
bc[3] = (float) borderColor[3] / (float) 65535.0f;
bc[0] = ((float) borderColor[0] / 65535.0f) * bc[3];
bc[1] = ((float) borderColor[1] / 65535.0f) * bc[3];
bc[2] = ((float) borderColor[2] / 65535.0f) * bc[3];
logic.getPaintRectangle (&box);
vertexData[0] = box.x1;
vertexData[1] = box.y1;
vertexData[2] = 0.0f;
vertexData[3] = box.x1;
vertexData[4] = box.y2;
vertexData[5] = 0.0f;
vertexData[6] = box.x2;
vertexData[7] = box.y1;
vertexData[8] = 0.0f;
vertexData[9] = box.x2;
vertexData[10] = box.y2;
vertexData[11] = 0.0f;
// FIXME: this is a quick work-around.
// GL_LINE_LOOP and GL_LINE_STRIP primitive types in the SGX Pvr X11 driver
// take special number of vertices (and reorder them). Thus, usage of
// those line primitive is currently not supported by our GLVertexBuffer
// implementation. This is a quick workaround to make it all work until
// we come up with a better GLVertexBuffer::render(...) function.
vertexData2[0] = box.x1;
vertexData2[1] = box.y1;
vertexData2[2] = 0.0f;
vertexData2[3] = box.x1;
vertexData2[4] = box.y2;
vertexData2[5] = 0.0f;
vertexData2[6] = box.x1;
vertexData2[7] = box.y2;
vertexData2[8] = 0.0f;
vertexData2[9] = box.x2;
vertexData2[10] = box.y2;
vertexData2[11] = 0.0f;
vertexData2[12] = box.x2;
vertexData2[13] = box.y2;
vertexData2[14] = 0.0f;
vertexData2[15] = box.x2;
vertexData2[16] = box.y1;
vertexData2[17] = 0.0f;
vertexData2[18] = box.x2;
vertexData2[19] = box.y1;
vertexData2[20] = 0.0f;
vertexData2[21] = box.x1;
vertexData2[22] = box.y1;
vertexData2[23] = 0.0f;
sTransform.toScreenSpace (output, -DEFAULT_Z_CAMERA);
glEnable (GL_BLEND);
glBlendFunc (GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
/* fill rectangle */
if (fillColor)
{
fc[3] = fillColor[3];
fc[0] = fillColor[0] * (unsigned long)fc[3] / 65535;
fc[1] = fillColor[1] * (unsigned long)fc[3] / 65535;
fc[2] = fillColor[2] * (unsigned long)fc[3] / 65535;
streamingBuffer->begin (GL_TRIANGLE_STRIP);
streamingBuffer->addColors (1, fc);
streamingBuffer->addVertices (4, &vertexData[0]);
streamingBuffer->end ();
streamingBuffer->render (sTransform);
}
/* draw outline */
static const int borderWidth = 2;
glLineWidth (borderWidth);
streamingBuffer->begin (GL_LINES);
streamingBuffer->addColors (1, borderColor);
streamingBuffer->addVertices (8, &vertexData2[0]);
streamingBuffer->end ();
streamingBuffer->render (sTransform);
glDisable (GL_BLEND);
#ifdef USE_GLES
glBlendFuncSeparate (origSrc, origDst,
origSrcAlpha, origDstAlpha);
#else
glBlendFunc (origSrc, origDst);
#endif
CompositeScreen *cScreen = CompositeScreen::get (screen);
CompRect damage (box.x1 - borderWidth,
box.y1 - borderWidth,
box.x2 - box.x1 + 2 * borderWidth,
box.y2 - box.y1 + 2 * borderWidth);
cScreen->damageRegion (damage);
}
void BlurEffect::doBlur(const QRegion& shape, const QRect& screen, const float opacity)
{
const QRegion expanded = expand(shape) & screen;
const QRect r = expanded.boundingRect();
// Upload geometry for the horizontal and vertical passes
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
uploadGeometry(vbo, expanded, shape);
vbo->bindArrays();
// Create a scratch texture and copy the area in the back buffer that we're
// going to blur into it
GLTexture scratch(r.width(), r.height());
scratch.setFilter(GL_LINEAR);
scratch.setWrapMode(GL_CLAMP_TO_EDGE);
scratch.bind();
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, r.x(), displayHeight() - r.y() - r.height(),
r.width(), r.height());
// Draw the texture on the offscreen framebuffer object, while blurring it horizontally
target->attachTexture(tex);
GLRenderTarget::pushRenderTarget(target);
shader->bind();
shader->setDirection(Qt::Horizontal);
shader->setPixelDistance(1.0 / r.width());
// Set up the texture matrix to transform from screen coordinates
// to texture coordinates.
QMatrix4x4 textureMatrix;
textureMatrix.scale(1.0 / scratch.width(), -1.0 / scratch.height(), 1);
textureMatrix.translate(-r.x(), -scratch.height() - r.y(), 0);
shader->setTextureMatrix(textureMatrix);
vbo->draw(GL_TRIANGLES, 0, expanded.rectCount() * 6);
GLRenderTarget::popRenderTarget();
scratch.unbind();
scratch.discard();
// Now draw the horizontally blurred area back to the backbuffer, while
// blurring it vertically and clipping it to the window shape.
tex.bind();
shader->setDirection(Qt::Vertical);
shader->setPixelDistance(1.0 / tex.height());
// Modulate the blurred texture with the window opacity if the window isn't opaque
if (opacity < 1.0) {
glEnable(GL_BLEND);
glBlendColor(0, 0, 0, opacity);
glBlendFunc(GL_CONSTANT_ALPHA, GL_ONE_MINUS_CONSTANT_ALPHA);
}
// Set the up the texture matrix to transform from screen coordinates
// to texture coordinates.
textureMatrix.setToIdentity();
textureMatrix.scale(1.0 / tex.width(), -1.0 / tex.height(), 1);
textureMatrix.translate(0, -tex.height(), 0);
shader->setTextureMatrix(textureMatrix);
vbo->draw(GL_TRIANGLES, expanded.rectCount() * 6, shape.rectCount() * 6);
vbo->unbindArrays();
if (opacity < 1.0) {
glDisable(GL_BLEND);
}
tex.unbind();
shader->unbind();
}
void
GLScreen::glPaintTransformedOutput (const GLScreenPaintAttrib &sAttrib,
const GLMatrix &transform,
const CompRegion ®ion,
CompOutput *output,
unsigned int mask)
{
WRAPABLE_HND_FUNCTN (glPaintTransformedOutput, sAttrib, transform,
region, output, mask)
GLMatrix sTransform = transform;
if (mask & PAINT_SCREEN_CLEAR_MASK)
clearTargetOutput (GL_COLOR_BUFFER_BIT);
setLighting (true);
glApplyTransform (sAttrib, output, &sTransform);
if ((mask & CLIP_PLANE_MASK) == CLIP_PLANE_MASK)
{
if (transformIsSimple (sTransform))
{
glEnableOutputClipping (sTransform, region, output);
sTransform.toScreenSpace (output, -sAttrib.zTranslate);
priv->paintOutputRegion (sTransform, region, output, mask);
glDisableOutputClipping ();
}
else if ( (GL::fboEnabled && GL::fboStencilSupported) ||
GL::stencilBuffer )
{
sTransform.toScreenSpace (output, -sAttrib.zTranslate);
glClearStencil (0);
glClear (GL_STENCIL_BUFFER_BIT);
glEnable (GL_STENCIL_TEST);
glStencilFunc (GL_ALWAYS, 1, 1);
glStencilOp (GL_KEEP, GL_KEEP, GL_REPLACE);
GLVertexBuffer vb;
vb.setAutoProgram (priv->autoProgram);
glBufferStencil (sTransform, vb, output);
glColorMask (GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glStencilMask (1);
vb.render (sTransform);
glColorMask (GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
glStencilFunc (GL_EQUAL, 1, 1);
glStencilOp (GL_KEEP, GL_KEEP, GL_KEEP);
priv->paintOutputRegion (sTransform, region, output, mask);
glDisable (GL_STENCIL_TEST);
}
else
{
// This won't look quite right but should never happen.
// Give a warning?
sTransform.toScreenSpace (output, -sAttrib.zTranslate);
priv->paintOutputRegion (sTransform, region, output, mask);
}
}
else
{
sTransform.toScreenSpace (output, -sAttrib.zTranslate);
priv->paintOutputRegion (sTransform, region, output, mask);
}
}
void BlurEffect::doCachedBlur(EffectWindow *w, const QRegion& region, const float opacity)
{
const QRect screen = effects->virtualScreenGeometry();
const QRegion blurredRegion = blurRegion(w).translated(w->pos()) & screen;
const QRegion expanded = expand(blurredRegion) & screen;
const QRect r = expanded.boundingRect();
// The background texture we get is only partially valid.
CacheEntry it = windows.find(w);
if (it == windows.end()) {
BlurWindowInfo bwi;
bwi.blurredBackground = GLTexture(r.width(),r.height());
bwi.damagedRegion = expanded;
bwi.dropCache = false;
bwi.windowPos = w->pos();
it = windows.insert(w, bwi);
} else if (it->blurredBackground.size() != r.size()) {
it->blurredBackground = GLTexture(r.width(),r.height());
it->dropCache = false;
it->windowPos = w->pos();
} else if (it->windowPos != w->pos()) {
it->dropCache = false;
it->windowPos = w->pos();
}
GLTexture targetTexture = it->blurredBackground;
targetTexture.setFilter(GL_LINEAR);
targetTexture.setWrapMode(GL_CLAMP_TO_EDGE);
shader->bind();
QMatrix4x4 textureMatrix;
QMatrix4x4 modelViewProjectionMatrix;
/**
* Which part of the background texture can be updated ?
*
* Well this is a rather difficult question. We kind of rely on the fact, that
* we need a bigger background region being painted before, more precisely if we want to
* blur region A we need the background region expand(A). This business logic is basically
* done in prePaintWindow:
* data.paint |= expand(damagedArea);
*
* Now "data.paint" gets clipped and becomes what we receive as the "region" variable
* in this function. In theory there is now only one function that does this clipping
* and this is paintSimpleScreen. The clipping has the effect that "damagedRegion"
* is no longer a subset of "region" and we cannot fully validate the cache within one
* rendering pass. If we would now update the "damageRegion & region" part of the cache
* we would wrongly update the part of the cache that is next to the "region" border and
* which lies within "damagedRegion", just because we cannot assume that the framebuffer
* outside of "region" is valid. Therefore the maximal damaged region of the cache that can
* be repainted is given by:
* validUpdate = damagedRegion - expand(damagedRegion - region);
*
* Now you may ask what is with the rest of "damagedRegion & region" that is not part
* of "validUpdate" but also might end up on the screen. Well under the assumption
* that only the occlusion culling can shrink "data.paint", we can control this by reducing
* the opaque area of every window by a margin of the blurring radius (c.f. prePaintWindow).
* This way we are sure that this area is overpainted by a higher opaque window.
*
* Apparently paintSimpleScreen is not the only function that can influence "region".
* In fact every effect's paintWindow that is called before Blur::paintWindow
* can do so (e.g. SlidingPopups). Hence we have to make the compromise that we update
* "damagedRegion & region" of the cache but only mark "validUpdate" as valid.
**/
const QRegion damagedRegion = it->damagedRegion;
const QRegion updateBackground = damagedRegion & region;
const QRegion validUpdate = damagedRegion - expand(damagedRegion - region);
const QRegion horizontal = validUpdate.isEmpty() ? QRegion() : (updateBackground & screen);
const QRegion vertical = blurredRegion & region;
const int horizontalOffset = 0;
const int horizontalCount = horizontal.rectCount() * 6;
const int verticalOffset = horizontalCount;
const int verticalCount = vertical.rectCount() * 6;
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
uploadGeometry(vbo, horizontal, vertical);
vbo->bindArrays();
if (!validUpdate.isEmpty()) {
const QRect updateRect = (expand(updateBackground) & expanded).boundingRect();
// First we have to copy the background from the frontbuffer
// into a scratch texture (in this case "tex").
tex.bind();
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, updateRect.x(), displayHeight() - updateRect.y() - updateRect.height(),
updateRect.width(), updateRect.height());
// Draw the texture on the offscreen framebuffer object, while blurring it horizontally
target->attachTexture(targetTexture);
GLRenderTarget::pushRenderTarget(target);
shader->setDirection(Qt::Horizontal);
shader->setPixelDistance(1.0 / tex.width());
modelViewProjectionMatrix.ortho(0, r.width(), r.height(), 0 , 0, 65535);
modelViewProjectionMatrix.translate(-r.x(), -r.y(), 0);
shader->setModelViewProjectionMatrix(modelViewProjectionMatrix);
// Set up the texture matrix to transform from screen coordinates
// to texture coordinates.
textureMatrix.scale(1.0 / tex.width(), -1.0 / tex.height(), 1);
textureMatrix.translate(-updateRect.x(), -updateRect.height() - updateRect.y(), 0);
shader->setTextureMatrix(textureMatrix);
vbo->draw(GL_TRIANGLES, horizontalOffset, horizontalCount);
GLRenderTarget::popRenderTarget();
tex.unbind();
// mark the updated region as valid
it->damagedRegion -= validUpdate;
}
// Now draw the horizontally blurred area back to the backbuffer, while
// blurring it vertically and clipping it to the window shape.
targetTexture.bind();
shader->setDirection(Qt::Vertical);
shader->setPixelDistance(1.0 / targetTexture.height());
// Modulate the blurred texture with the window opacity if the window isn't opaque
if (opacity < 1.0) {
glEnable(GL_BLEND);
glBlendColor(0, 0, 0, opacity);
glBlendFunc(GL_CONSTANT_ALPHA, GL_ONE_MINUS_CONSTANT_ALPHA);
}
modelViewProjectionMatrix.setToIdentity();
const QSize screenSize = effects->virtualScreenSize();
modelViewProjectionMatrix.ortho(0, screenSize.width(), screenSize.height(), 0, 0, 65535);
shader->setModelViewProjectionMatrix(modelViewProjectionMatrix);
// Set the up the texture matrix to transform from screen coordinates
// to texture coordinates.
textureMatrix.setToIdentity();
textureMatrix.scale(1.0 / targetTexture.width(), -1.0 / targetTexture.height(), 1);
textureMatrix.translate(-r.x(), -targetTexture.height() - r.y(), 0);
shader->setTextureMatrix(textureMatrix);
vbo->draw(GL_TRIANGLES, verticalOffset, verticalCount);
vbo->unbindArrays();
if (opacity < 1.0) {
glDisable(GL_BLEND);
}
targetTexture.unbind();
shader->unbind();
}
void
PrivateGLScreen::paintBackground (const GLMatrix &transform,
const CompRegion ®ion,
bool transformed)
{
GLVertexBuffer *streamingBuffer = GLVertexBuffer::streamingBuffer ();
GLfloat vertexData[18];
GLushort colorData[4];
BoxPtr pBox = const_cast <Region> (region.handle ())->rects;
int n, nBox = const_cast <Region> (region.handle ())->numRects;
if (!nBox)
return;
if (screen->desktopWindowCount ())
{
if (!backgroundTextures.empty ())
{
backgroundTextures.clear ();
}
backgroundLoaded = false;
return;
}
else
{
if (!backgroundLoaded)
updateScreenBackground ();
backgroundLoaded = true;
}
if (backgroundTextures.empty ())
{
streamingBuffer->begin (GL_TRIANGLES);
n = nBox;
while (n--)
{
vertexData[0] = pBox->x1;
vertexData[1] = pBox->y1;
vertexData[2] = 0.0f;
vertexData[3] = pBox->x1;
vertexData[4] = pBox->y2;
vertexData[5] = 0.0f;
vertexData[6] = pBox->x2;
vertexData[7] = pBox->y1;
vertexData[8] = 0.0f;
vertexData[9] = pBox->x1;
vertexData[10] = pBox->y2;
vertexData[11] = 0.0f;
vertexData[12] = pBox->x2;
vertexData[13] = pBox->y2;
vertexData[14] = 0.0f;
vertexData[15] = pBox->x2;
vertexData[16] = pBox->y1;
vertexData[17] = 0.0f;
streamingBuffer->addVertices (6, vertexData);
pBox++;
}
colorData[0] = colorData[1] = colorData[2] = 0;
colorData[3] = std::numeric_limits <unsigned short>::max ();
streamingBuffer->addColors (1, colorData);
streamingBuffer->end ();
streamingBuffer->render (transform);
}
else
{
n = nBox;
for (unsigned int i = 0; i < backgroundTextures.size (); i++)
{
GLfloat textureData[12];
GLTexture *bg = backgroundTextures[i];
CompRegion r = region & *bg;
pBox = const_cast <Region> (r.handle ())->rects;
nBox = const_cast <Region> (r.handle ())->numRects;
n = nBox;
streamingBuffer->begin (GL_TRIANGLES);
while (n--)
{
GLfloat tx1 = COMP_TEX_COORD_X (bg->matrix (), pBox->x1);
GLfloat tx2 = COMP_TEX_COORD_X (bg->matrix (), pBox->x2);
GLfloat ty1 = COMP_TEX_COORD_Y (bg->matrix (), pBox->y1);
GLfloat ty2 = COMP_TEX_COORD_Y (bg->matrix (), pBox->y2);
vertexData[0] = pBox->x1;
vertexData[1] = pBox->y1;
vertexData[2] = 0.0f;
vertexData[3] = pBox->x1;
vertexData[4] = pBox->y2;
vertexData[5] = 0.0f;
vertexData[6] = pBox->x2;
vertexData[7] = pBox->y1;
vertexData[8] = 0.0f;
vertexData[9] = pBox->x1;
vertexData[10] = pBox->y2;
vertexData[11] = 0.0f;
vertexData[12] = pBox->x2;
vertexData[13] = pBox->y2;
vertexData[14] = 0.0f;
vertexData[15] = pBox->x2;
vertexData[16] = pBox->y1;
vertexData[17] = 0.0f;
textureData[0] = tx1;
textureData[1] = ty1;
textureData[2] = tx1;
textureData[3] = ty2;
textureData[4] = tx2;
textureData[5] = ty1;
textureData[6] = tx1;
textureData[7] = ty2;
textureData[8] = tx2;
textureData[9] = ty2;
textureData[10] = tx2;
textureData[11] = ty1;
streamingBuffer->addVertices (6, vertexData);
streamingBuffer->addTexCoords (0, 6, textureData);
pBox++;
}
streamingBuffer->end ();
if (bg->name ())
{
if (transformed)
bg->enable (GLTexture::Good);
else
bg->enable (GLTexture::Fast);
streamingBuffer->render (transform);
bg->disable ();
}
}
}
}
void LanczosFilter::performPaint(EffectWindowImpl* w, int mask, QRegion region, WindowPaintData& data)
{
if (effects->compositingType() == KWin::OpenGLCompositing && (data.xScale() < 0.9 || data.yScale() < 0.9) &&
KGlobalSettings::graphicEffectsLevel() & KGlobalSettings::SimpleAnimationEffects) {
if (!m_inited)
init();
const QRect screenRect = Workspace::self()->clientArea(ScreenArea, w->screen(), w->desktop());
// window geometry may not be bigger than screen geometry to fit into the FBO
if (m_shader && w->width() <= screenRect.width() && w->height() <= screenRect.height()) {
double left = 0;
double top = 0;
double right = w->width();
double bottom = w->height();
foreach (const WindowQuad & quad, data.quads) {
// we need this loop to include the decoration padding
left = qMin(left, quad.left());
top = qMin(top, quad.top());
right = qMax(right, quad.right());
bottom = qMax(bottom, quad.bottom());
}
double width = right - left;
double height = bottom - top;
if (width > screenRect.width() || height > screenRect.height()) {
// window with padding does not fit into the framebuffer
// so cut of the shadow
left = 0;
top = 0;
width = w->width();
height = w->height();
}
int tx = data.xTranslation() + w->x() + left * data.xScale();
int ty = data.yTranslation() + w->y() + top * data.yScale();
int tw = width * data.xScale();
int th = height * data.yScale();
const QRect textureRect(tx, ty, tw, th);
const bool hardwareClipping = !(QRegion(textureRect)-region).isEmpty();
int sw = width;
int sh = height;
GLTexture *cachedTexture = static_cast< GLTexture*>(w->data(LanczosCacheRole).value<void*>());
if (cachedTexture) {
if (cachedTexture->width() == tw && cachedTexture->height() == th) {
cachedTexture->bind();
if (hardwareClipping) {
glEnable(GL_SCISSOR_TEST);
}
if (ShaderManager::instance()->isValid()) {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
const qreal rgb = data.brightness() * data.opacity();
const qreal a = data.opacity();
GLShader *shader = ShaderManager::instance()->pushShader(ShaderManager::SimpleShader);
shader->setUniform(GLShader::Offset, QVector2D(0, 0));
shader->setUniform(GLShader::ModulationConstant, QVector4D(rgb, rgb, rgb, a));
shader->setUniform(GLShader::Saturation, data.saturation());
shader->setUniform(GLShader::AlphaToOne, 0);
cachedTexture->render(region, textureRect, hardwareClipping);
ShaderManager::instance()->popShader();
glDisable(GL_BLEND);
} else {
prepareRenderStates(cachedTexture, data.opacity(), data.brightness(), data.saturation());
cachedTexture->render(region, textureRect, hardwareClipping);
restoreRenderStates(cachedTexture, data.opacity(), data.brightness(), data.saturation());
}
if (hardwareClipping) {
glDisable(GL_SCISSOR_TEST);
}
cachedTexture->unbind();
m_timer.start(5000, this);
return;
} else {
// offscreen texture not matching - delete
delete cachedTexture;
cachedTexture = 0;
w->setData(LanczosCacheRole, QVariant());
}
}
WindowPaintData thumbData = data;
thumbData.setXScale(1.0);
thumbData.setYScale(1.0);
thumbData.setXTranslation(-w->x() - left);
thumbData.setYTranslation(-w->y() - top);
thumbData.setBrightness(1.0);
thumbData.setOpacity(1.0);
thumbData.setSaturation(1.0);
// Bind the offscreen FBO and draw the window on it unscaled
updateOffscreenSurfaces();
GLRenderTarget::pushRenderTarget(m_offscreenTarget);
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
w->sceneWindow()->performPaint(mask, infiniteRegion(), thumbData);
// Create a scratch texture and copy the rendered window into it
GLTexture tex(sw, sh);
tex.setFilter(GL_LINEAR);
tex.setWrapMode(GL_CLAMP_TO_EDGE);
tex.bind();
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, m_offscreenTex->height() - sh, sw, sh);
// Set up the shader for horizontal scaling
float dx = sw / float(tw);
int kernelSize;
m_shader->createKernel(dx, &kernelSize);
m_shader->createOffsets(kernelSize, sw, Qt::Horizontal);
m_shader->bind();
m_shader->setUniforms();
// Draw the window back into the FBO, this time scaled horizontally
glClear(GL_COLOR_BUFFER_BIT);
QVector<float> verts;
QVector<float> texCoords;
verts.reserve(12);
texCoords.reserve(12);
texCoords << 1.0 << 0.0; verts << tw << 0.0; // Top right
texCoords << 0.0 << 0.0; verts << 0.0 << 0.0; // Top left
texCoords << 0.0 << 1.0; verts << 0.0 << sh; // Bottom left
texCoords << 0.0 << 1.0; verts << 0.0 << sh; // Bottom left
texCoords << 1.0 << 1.0; verts << tw << sh; // Bottom right
texCoords << 1.0 << 0.0; verts << tw << 0.0; // Top right
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setData(6, 2, verts.constData(), texCoords.constData());
vbo->render(GL_TRIANGLES);
// At this point we don't need the scratch texture anymore
tex.unbind();
tex.discard();
// create scratch texture for second rendering pass
GLTexture tex2(tw, sh);
tex2.setFilter(GL_LINEAR);
tex2.setWrapMode(GL_CLAMP_TO_EDGE);
tex2.bind();
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, m_offscreenTex->height() - sh, tw, sh);
// Set up the shader for vertical scaling
float dy = sh / float(th);
m_shader->createKernel(dy, &kernelSize);
m_shader->createOffsets(kernelSize, m_offscreenTex->height(), Qt::Vertical);
m_shader->setUniforms();
// Now draw the horizontally scaled window in the FBO at the right
// coordinates on the screen, while scaling it vertically and blending it.
glClear(GL_COLOR_BUFFER_BIT);
verts.clear();
verts << tw << 0.0; // Top right
verts << 0.0 << 0.0; // Top left
verts << 0.0 << th; // Bottom left
verts << 0.0 << th; // Bottom left
verts << tw << th; // Bottom right
verts << tw << 0.0; // Top right
vbo->setData(6, 2, verts.constData(), texCoords.constData());
vbo->render(GL_TRIANGLES);
tex2.unbind();
tex2.discard();
m_shader->unbind();
// create cache texture
GLTexture *cache = new GLTexture(tw, th);
cache->setFilter(GL_LINEAR);
cache->setWrapMode(GL_CLAMP_TO_EDGE);
cache->bind();
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, m_offscreenTex->height() - th, tw, th);
GLRenderTarget::popRenderTarget();
if (hardwareClipping) {
glEnable(GL_SCISSOR_TEST);
}
if (ShaderManager::instance()->isValid()) {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
const qreal rgb = data.brightness() * data.opacity();
const qreal a = data.opacity();
GLShader *shader = ShaderManager::instance()->pushShader(ShaderManager::SimpleShader);
shader->setUniform(GLShader::Offset, QVector2D(0, 0));
shader->setUniform(GLShader::ModulationConstant, QVector4D(rgb, rgb, rgb, a));
shader->setUniform(GLShader::Saturation, data.saturation());
shader->setUniform(GLShader::AlphaToOne, 0);
cache->render(region, textureRect, hardwareClipping);
ShaderManager::instance()->popShader();
glDisable(GL_BLEND);
} else {
prepareRenderStates(cache, data.opacity(), data.brightness(), data.saturation());
cache->render(region, textureRect, hardwareClipping);
restoreRenderStates(cache, data.opacity(), data.brightness(), data.saturation());
}
if (hardwareClipping) {
glDisable(GL_SCISSOR_TEST);
}
cache->unbind();
w->setData(LanczosCacheRole, QVariant::fromValue(static_cast<void*>(cache)));
// Delete the offscreen surface after 5 seconds
m_timer.start(5000, this);
return;
}
} // if ( effects->compositingType() == KWin::OpenGLCompositing )
void
ParticleSystem::drawParticles(const GLMatrix &transform)
{
int i, j, k, l;
/* Check that the cache is big enough */
if (vertices_cache.size () < particles.size () * VERTEX_COMPONENTS)
vertices_cache.resize (particles.size () * VERTEX_COMPONENTS);
if (coords_cache.size () < particles.size () * COORD_COMPONENTS)
coords_cache.resize (particles.size () * COORD_COMPONENTS);
if (colors_cache.size () < particles.size () * COLOR_COMPONENTS)
colors_cache.resize (particles.size () * COLOR_COMPONENTS);
if (darken > 0)
if (dcolors_cache.size () < particles.size () * COLOR_COMPONENTS)
dcolors_cache.resize (particles.size () * COLOR_COMPONENTS);
GLboolean glBlendEnabled = glIsEnabled (GL_BLEND);
if (!glBlendEnabled)
glEnable (GL_BLEND);
if (tex)
{
glBindTexture (GL_TEXTURE_2D, tex);
glEnable (GL_TEXTURE_2D);
}
i = j = k = l = 0;
GLfloat w, h;
GLfloat xMinusW, xPlusW, yMinusH, yPlusH;
GLushort r, g, b, a, dark_a;
/* for each particle, use two triangles to display it */
foreach (Particle &part, particles)
{
if (part.life > 0.0f)
{
w = part.width / 2.0f;
h = part.height / 2.0f;
r = part.r * 65535.0f;
g = part.g * 65535.0f;
b = part.b * 65535.0f;
a = part.life * part.a * 65535.0f;
dark_a = part.life * part.a * 65535.0f * darken;
w += w * part.w_mod * part.life;
h += h * part.h_mod * part.life;
xMinusW = part.x - w;
xPlusW = part.x + w;
yMinusH = part.y - h;
yPlusH = part.y + h;
//first triangle
vertices_cache[i + 0] = xMinusW;
vertices_cache[i + 1] = yMinusH;
vertices_cache[i + 2] = part.z;
vertices_cache[i + 3] = xMinusW;
vertices_cache[i + 4] = yPlusH;
vertices_cache[i + 5] = part.z;
vertices_cache[i + 6] = xPlusW;
vertices_cache[i + 7] = yPlusH;
vertices_cache[i + 8] = part.z;
//second triangle
vertices_cache[i + 9] = xPlusW;
vertices_cache[i + 10] = yPlusH;
vertices_cache[i + 11] = part.z;
vertices_cache[i + 12] = xPlusW;
vertices_cache[i + 13] = yMinusH;
vertices_cache[i + 14] = part.z;
vertices_cache[i + 15] = xMinusW;
vertices_cache[i + 16] = yMinusH;
vertices_cache[i + 17] = part.z;
i += 18;
coords_cache[j + 0] = 0.0;
coords_cache[j + 1] = 0.0;
coords_cache[j + 2] = 0.0;
coords_cache[j + 3] = 1.0;
coords_cache[j + 4] = 1.0;
coords_cache[j + 5] = 1.0;
//second
coords_cache[j + 6] = 1.0;
coords_cache[j + 7] = 1.0;
coords_cache[j + 8] = 1.0;
coords_cache[j + 9] = 0.0;
coords_cache[j + 10] = 0.0;
coords_cache[j + 11] = 0.0;
j += 12;
colors_cache[k + 0] = r;
colors_cache[k + 1] = g;
colors_cache[k + 2] = b;
colors_cache[k + 3] = a;
colors_cache[k + 4] = r;
colors_cache[k + 5] = g;
colors_cache[k + 6] = b;
colors_cache[k + 7] = a;
colors_cache[k + 8] = r;
colors_cache[k + 9] = g;
colors_cache[k + 10] = b;
colors_cache[k + 11] = a;
//second
colors_cache[k + 12] = r;
colors_cache[k + 13] = g;
colors_cache[k + 14] = b;
colors_cache[k + 15] = a;
colors_cache[k + 16] = r;
colors_cache[k + 17] = g;
colors_cache[k + 18] = b;
colors_cache[k + 19] = a;
colors_cache[k + 20] = r;
colors_cache[k + 21] = g;
colors_cache[k + 22] = b;
colors_cache[k + 23] = a;
k += 24;
if (darken > 0)
{
dcolors_cache[l + 0] = r;
dcolors_cache[l + 1] = g;
dcolors_cache[l + 2] = b;
dcolors_cache[l + 3] = dark_a;
dcolors_cache[l + 4] = r;
dcolors_cache[l + 5] = g;
dcolors_cache[l + 6] = b;
dcolors_cache[l + 7] = dark_a;
dcolors_cache[l + 8] = r;
dcolors_cache[l + 9] = g;
dcolors_cache[l + 10] = b;
dcolors_cache[l + 11] = dark_a;
//second
dcolors_cache[l + 12] = r;
dcolors_cache[l + 13] = g;
dcolors_cache[l + 14] = b;
dcolors_cache[l + 15] = dark_a;
dcolors_cache[l + 16] = r;
dcolors_cache[l + 17] = g;
dcolors_cache[l + 18] = b;
dcolors_cache[l + 19] = dark_a;
dcolors_cache[l + 20] = r;
dcolors_cache[l + 21] = g;
dcolors_cache[l + 22] = b;
dcolors_cache[l + 23] = dark_a;
l += 24;
}
}
}
GLVertexBuffer *stream = GLVertexBuffer::streamingBuffer ();
if (darken > 0)
{
glBlendFunc (GL_ZERO, GL_ONE_MINUS_SRC_ALPHA);
stream->begin (GL_TRIANGLES);
stream->addVertices (i / 3, &vertices_cache[0]);
stream->addTexCoords (0, j / 2, &coords_cache[0]);
stream->addColors (l / 4, &dcolors_cache[0]);
if (stream->end ())
stream->render (transform);
}
/* draw particles */
glBlendFunc (GL_SRC_ALPHA, blendMode);
stream->begin (GL_TRIANGLES);
stream->addVertices (i / 3, &vertices_cache[0]);
stream->addTexCoords (0, j / 2, &coords_cache[0]);
stream->addColors (k / 4, &colors_cache[0]);
if (stream->end ())
stream->render (transform);
glBlendFunc (GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
glDisable (GL_TEXTURE_2D);
/* only disable blending if it was disabled before */
if (!glBlendEnabled)
glDisable (GL_BLEND);
}
void * GLDevice::RDLockBuffer(RDVertexBufferP iBuffer, uint32_t iOffset, uint32_t iSize, ELockMode iAccess)
{
GLVertexBuffer * buffer = static_cast<GLVertexBuffer *>(iBuffer);
return buffer->Lock(GetCurrentContext(), iOffset, iSize, ConvertLockAccess(iAccess));
}
