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OpenGL rendering debug

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Renders same geometry with polygon mode lines and the shader colorizes the fragments.
Enabled with environment variable KWIN_GL_DEBUG=1
This commit is contained in:
Martin Gräßlin 2010-11-19 21:22:10 +01:00 committed by Martin Gräßlin
parent 56ce39def8
commit 6cc19ebc7d
2 changed files with 21 additions and 7 deletions
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27
scene_opengl.cpp
View file

@ -179,6 +179,8 @@ SceneOpenGL::SceneOpenGL( Workspace* ws )
qWarning() << "NO VSYNC! glXGetVideoSync(&uint) isn't 0 but" << glXGetVideoSync( &sync );
}
debug = qstrcmp( qgetenv( "KWIN_GL_DEBUG" ), "1" ) == 0;
// scene shader setup
GLPlatform::instance()->detect();
if( GLPlatform::instance()->supports( GLSL ) )
@ -189,7 +191,7 @@ SceneOpenGL::SceneOpenGL( Workspace* ws )
m_sceneShader->bind();
m_sceneShader->setUniform( "sample", 0 );
m_sceneShader->setUniform( "displaySize", QVector2D(displayWidth(), displayHeight()));
m_sceneShader->setUniform( "debug", 1 );
m_sceneShader->setUniform( "debug", debug ? 1 : 0 );
m_sceneShader->bindAttributeLocation( 0, "vertex" );
m_sceneShader->bindAttributeLocation( 1, "texCoord" );
m_sceneShader->unbind();
@ -1598,22 +1600,27 @@ void SceneOpenGL::Window::performPaint( int mask, QRegion region, WindowPaintDat
}
}
texture.bind();
texture.enableUnnormalizedTexCoords();
// paint the content
if ( !(mask & PAINT_DECORATION_ONLY) )
{
prepareStates( Content, data.opacity * data.contents_opacity, data.brightness, data.saturation, data.shader );
if( !vertexBuffer )
vertexBuffer = new GLVertexBuffer( GLVertexBuffer::Stream );
vertexBuffer->setUseShader( sceneShader );
texture.bind();
texture.enableUnnormalizedTexCoords();
prepareStates( Content, data.opacity * data.contents_opacity, data.brightness, data.saturation, data.shader );
renderQuads( mask, region, data.quads.select( WindowQuadContents ));
restoreStates( Content, data.opacity * data.contents_opacity, data.brightness, data.saturation, data.shader );
}
texture.disableUnnormalizedTexCoords();
texture.unbind();
if( static_cast<SceneOpenGL*>(scene)->debug )
{
glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
renderQuads( mask, region, data.quads.select( WindowQuadContents ));
glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
}
}
if( sceneShader )
{
data.shader->unbind();
@ -1678,6 +1685,12 @@ void SceneOpenGL::Window::paintDecoration( const QPixmap* decoration, TextureTyp
SceneOpenGL::Window::decorationVertices->render( region, GL_TRIANGLES );
restoreStates( decorationType, data.opacity * data.decoration_opacity, data.brightness, data.saturation, data.shader );
decorationTexture->unbind();
if( static_cast<SceneOpenGL*>(scene)->debug )
{
glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
SceneOpenGL::Window::decorationVertices->render( region, GL_TRIANGLES );
glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
}
}
void SceneOpenGL::Window::makeDecorationArrays( const WindowQuadList& quads, const QRect& rect ) const

1
scene_opengl.h
View file

@ -98,6 +98,7 @@ class SceneOpenGL
bool init_ok;
bool selfCheckDone;
GLShader* m_sceneShader;
bool debug;
};
class SceneOpenGL::Texture