You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
122 lines
3.5 KiB
122 lines
3.5 KiB
/******************************************************************** |
|
KWin - the KDE window manager |
|
This file is part of the KDE project. |
|
|
|
Copyright (C) 2007 Rivo Laks <rivolaks@hot.ee> |
|
|
|
This program is free software; you can redistribute it and/or modify |
|
it under the terms of the GNU General Public License as published by |
|
the Free Software Foundation; either version 2 of the License, or |
|
(at your option) any later version. |
|
|
|
This program is distributed in the hope that it will be useful, |
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
GNU General Public License for more details. |
|
|
|
You should have received a copy of the GNU General Public License |
|
along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
*********************************************************************/ |
|
|
|
#include "test_fbo.h" |
|
|
|
#include <kwinglutils.h> |
|
|
|
#include <assert.h> |
|
|
|
namespace KWin |
|
{ |
|
|
|
KWIN_EFFECT( test_fbo, TestFBOEffect ) |
|
KWIN_EFFECT_SUPPORTED( test_fbo, TestFBOEffect::supported() ) |
|
|
|
|
|
TestFBOEffect::TestFBOEffect() : Effect() |
|
{ |
|
mRot = 0.0f; |
|
|
|
// Create texture and render target |
|
mTexture = new GLTexture(displayWidth(), displayHeight()); |
|
mTexture->setFilter(GL_LINEAR_MIPMAP_LINEAR); |
|
|
|
mRenderTarget = new GLRenderTarget(mTexture); |
|
|
|
mValid = mRenderTarget->valid(); |
|
} |
|
|
|
TestFBOEffect::~TestFBOEffect() |
|
{ |
|
delete mTexture; |
|
delete mRenderTarget; |
|
} |
|
|
|
bool TestFBOEffect::supported() |
|
{ |
|
return GLRenderTarget::supported() && GLTexture::NPOTTextureSupported() && |
|
(effects->compositingType() == OpenGLCompositing); |
|
} |
|
|
|
|
|
void TestFBOEffect::prePaintScreen( ScreenPrePaintData& data, int time ) |
|
{ |
|
if(mValid) |
|
{ |
|
data.mask |= PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS; |
|
// Start rendering to texture |
|
effects->pushRenderTarget(mRenderTarget); |
|
} |
|
|
|
effects->prePaintScreen(data, time); |
|
} |
|
|
|
void TestFBOEffect::postPaintScreen() |
|
{ |
|
// Call the next effect. |
|
effects->postPaintScreen(); |
|
|
|
if(mValid) |
|
{ |
|
// Disable render texture |
|
assert( effects->popRenderTarget() == mRenderTarget ); |
|
mTexture->bind(); |
|
|
|
// Render fullscreen quad with screen contents |
|
glBegin(GL_QUADS); |
|
glTexCoord2f(0.0, 0.0); glVertex2f(0.0, displayHeight()); |
|
glTexCoord2f(1.0, 0.0); glVertex2f(displayWidth(), displayHeight()); |
|
glTexCoord2f(1.0, 1.0); glVertex2f(displayWidth(), 0.0); |
|
glTexCoord2f(0.0, 1.0); glVertex2f(0.0, 0.0); |
|
glEnd(); |
|
|
|
// Render rotated screen thumbnail |
|
mRot += 0.5f; |
|
glTranslatef(displayWidth()/2.0f, displayHeight()/2.0f, 0.0f); |
|
glRotatef(mRot, 0.0, 0.0, 1.0); |
|
glScalef(0.2, 0.2, 0.2); |
|
glTranslatef(-displayWidth()/2.0f, -displayHeight()/2.0f, 0.0f); |
|
|
|
glEnable(GL_BLEND); |
|
glColor4f(1.0, 1.0, 1.0, 0.8); |
|
glBegin(GL_QUADS); |
|
glTexCoord2f(0.0, 0.0); glVertex2f(0.0, displayHeight()); |
|
glTexCoord2f(1.0, 0.0); glVertex2f(displayWidth(), displayHeight()); |
|
glTexCoord2f(1.0, 1.0); glVertex2f(displayWidth(), 0.0); |
|
glTexCoord2f(0.0, 1.0); glVertex2f(0.0, 0.0); |
|
glEnd(); |
|
glColor4f(1.0, 1.0, 1.0, 1.0); |
|
glDisable(GL_BLEND); |
|
|
|
// Reset matrix and unbind texture |
|
glLoadIdentity(); |
|
|
|
mTexture->unbind(); |
|
|
|
// Make sure the animation continues |
|
effects->addRepaintFull(); |
|
} |
|
|
|
} |
|
|
|
|
|
} // namespace |
|
|
|
|