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implement prepare_display_region

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cxgeorge 2002-09-12 22:28:53 +00:00
parent 960722a457
commit eeda66f4e4
1 changed files with 12 additions and 22 deletions
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34
panda/src/dxgsg/dxGraphicsStateGuardian.cxx
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@ -959,34 +959,24 @@ do_clear(const RenderBuffer &buffer) {
////////////////////////////////////////////////////////////////////
void DXGraphicsStateGuardian::
prepare_display_region() {
if (_current_display_region == (DisplayRegion*)0L) {
if (_current_display_region == (DisplayRegion*)0L) {
dxgsg_cat.error()
<< "Invalid NULL display region in prepare_display_region()\n";
} else if (_current_display_region != _actual_display_region) {
_actual_display_region = _current_display_region;
#ifndef NO_MULTIPLE_DISPLAY_REGIONS
int l, b, w, h;
_actual_display_region->get_region_pixels(l, b, w, h);
GLint x = GLint(l);
GLint y = GLint(b);
GLsizei width = GLsizei(w);
GLsizei height = GLsizei(h);
#ifdef WBD_GL_MODE
// call_glScissor( x, y, width, height );
// call_glViewport( x, y, width, height );
#else
if ( _scissor_x != x || _scissor_y != y ||
_scissor_width != width || _scissor_height != height )
{
_scissor_x = x; _scissor_y = y;
_scissor_width = width; _scissor_height = height;
RECT cliprect;
SetRect(&cliprect, x, y, x+width, y+height );
set_clipper(cliprect);
int l, b, w, h;
_actual_display_region->get_region_pixels(l, b, w, h);
// Create the viewport
D3DVIEWPORT7 vp = {l,b,w,h,0.0f,1.0f};
HRESULT hr = scrn.pD3DDevice->SetViewport( &vp );
if(FAILED(hr)) {
dxgsg_cat.fatal() << "SetViewport failed : result = " << ConvD3DErrorToString(hr) << endl;
exit(1);
}
#endif //WBD_GL_MODE
#endif
// Note: for DX9, also change scissor clipping state here
}
}