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Lines Matching refs:ramp

18 /* Turn a normal gamma value into an appropriate gamma ramp */
19 void CalculateGamma(double gamma, Uint16 *ramp)
29 		ramp[i] = (Uint16)value;
81 	Uint16 ramp[256];
180 		CalculateGamma(1.0/gamma, ramp);
181 		SDL_SetGammaRamp(red_ramp, ramp, ramp);
185 	memset(ramp, 0, sizeof(ramp));
186 	SDL_SetGammaRamp(red_ramp, ramp, ramp);