C++ (Cpp) optionGetIntensityの例

コード例 #1

ファイル: showrepaint.cpp プロジェクト: adrianobalani/compiz-2

bool
ShowrepaintScreen::glPaintOutput (const GLScreenPaintAttrib &attrib,
				  const GLMatrix            &transform,
				  const CompRegion          &region,
				  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;
}

コード例 #2

ファイル: showrepaint.cpp プロジェクト: gloob/compiz-tracking

bool
ShowrepaintScreen::glPaintOutput (const GLScreenPaintAttrib &attrib,
				  const GLMatrix            &transform,
				  const CompRegion          &region,
				  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;
}