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Lines Matching refs:gamma

142  * Apply gamma correction to an intensity value in [0..max].  Return the
146 gamma_adjust( GLfloat gamma, GLint value, GLint max )
148    if (gamma == 1.0) {
153       return IROUND_POS((GLfloat) max * pow(x, 1.0F/gamma));
759    char *gamma;
795    gamma = getenv("MESA_GAMMA");
796    if (gamma) {
798       sscanf( gamma, "%f %f %f", &v->RedGamma, &v->GreenGamma, &v->BlueGamma );