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print UNDEFINED MODE over samples that are undefined in the GL spec

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Brian Paul 2000-08-21 20:04:55 +00:00
parent 9b61162d43
commit 043654bbfb
1 changed files with 12 additions and 1 deletions
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13
progs/demos/texenv.c
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@ -587,7 +587,18 @@ static void drawSample( int x, int y, int w, int h,
glShadeModel( GL_FLAT );
glDisable( GL_TEXTURE_2D );
if ( displayLevelInfo ) {
if ( envMode->mode == GL_DECAL &&
(format->baseFormat == GL_ALPHA ||
format->baseFormat == GL_LUMINANCE ||
format->baseFormat == GL_LUMINANCE_ALPHA ||
format->baseFormat == GL_INTENSITY)) {
/* undefined format/mode combination */
begin2D( w, h );
drawStringOutline( "UNDEFINED MODE", 15, h / 2,
labelLevelColor0, labelLevelColor1 );
end2D();
}
else if ( displayLevelInfo ) {
GLint width, height, border, components;
GLint redSize, greenSize, blueSize, alphaSize;
GLint luminanceSize, intensitySize;