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;
glColor4usv (color);
glPushMatrix ();
glLoadMatrixf (sTransform.getMatrix ());
glEnable (GL_BLEND);
glBegin (GL_QUADS);
foreach (const CompRect &box, tmpRegion.rects ())
{
glVertex2i (box.x1 (), box.y1 ());
glVertex2i (box.x1 (), box.y2 ());
glVertex2i (box.x2 (), box.y2 ());
glVertex2i (box.x2 (), box.y1 ());
}
glEnd ();
glDisable (GL_BLEND);
glPopMatrix();
glColor4usv (defaultColor);
return status;
}
CompPoint
compiz::wall::movementWindowOnScreen (const CompRect &serverBorderRect,
const CompRegion &screenRegion)
{
CompRegion sbrRegion (serverBorderRect);
/* If the window would be partially offscreen
* after it was moved then we should move it back
* so that it is completely onscreen, since we moved
* from mostly offscreen on B to mostly onscreen on A,
* the user should be able to see their selected window */
CompRegion inter = sbrRegion.intersected (screenRegion);
CompRegion rem = sbrRegion - screenRegion;
int dx = 0;
int dy = 0;
const CompRect::vector &rects (rem.rects ());
for (std::vector <CompRect>::const_iterator it = rects.begin ();
it != rects.end ();
++it)
{
const CompRect &r = *it;
if (r.x1 () >= inter.boundingRect ().x2 ())
dx -= r.width ();
else if (r.x2 () <= inter.boundingRect ().x1 ())
dx += r.width ();
if (r.y1 () >= inter.boundingRect ().y2 ())
dy -= r.height ();
else if (r.y2 () <= inter.boundingRect ().y1 ())
dy += r.height ();
}
return CompPoint (dx, dy);
}
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;
}