void COpenGL::updateScreen()
{
glEnable(GL_TEXTURE_2D);
// Set up an array of values to use as the sprite vertices.
GLfloat vertices[] =
{
0, 0,
1, 0,
1, 1,
0, 1,
};
// Set up an array of values for the texture coordinates.
GLfloat texcoords[] =
{
0, 0,
1, 0,
1, 1,
0, 1,
};
//Render the vertices by pointing to the arrays.
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, vertices);
glTexCoordPointer(2, GL_FLOAT, 0, texcoords);
glEnable(GL_BLEND);
if(m_VidConfig.m_ScaleXFilter > 1)
{
if(getPerSurfaceAlpha(FXSurface))
SDL_BlitSurface(FXSurface, NULL, BlitSurface, NULL);
}
loadSurface(m_texture, BlitSurface);
renderTexture(m_texture);
if(m_VidConfig.m_ScaleXFilter == 1)
{
if(FXSurface && getPerSurfaceAlpha(FXSurface))
{
reloadFX(FXSurface);
renderTexture(m_texFX, true);
}
}
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisable(GL_BLEND);
glDisable(GL_TEXTURE_2D);
g_pInput->renderOverlay();
SDL_GL_SwapBuffers();
}
void CSDLVideo::collectSurfaces()
{
SDL_Surface *overlay = mpOverlaySurface.get();
if( getPerSurfaceAlpha(overlay) )
SDL_BlitSurface(overlay, NULL, mpGameSfc.get(), NULL);
}
void CPalette::applyFade()
{
Uint8 current_alpha = getPerSurfaceAlpha(m_fxsurface);
if( m_alpha!=current_alpha )
{
m_fade_in_progess = true;
if( m_alpha>current_alpha )
{
if(current_alpha+m_fadespeed>m_alpha)
current_alpha = m_alpha;
else
current_alpha += m_fadespeed;
}
else if( m_alpha<current_alpha )
{
if(current_alpha-m_fadespeed<m_alpha)
current_alpha = m_alpha;
else
current_alpha -= m_fadespeed;
}
SDL_SetAlpha( m_fxsurface, SDL_SRCALPHA, current_alpha);
}
else
{
m_fade_in_progess = false;
}
}
