Initial commit.

code/win32/win_gamma_console.cpp

@@ -0,0 +1,73 @@
+/*
+** WIN_GAMMA.C
+*/
+// leave this as first line for PCH reasons...
+//
+//#include "../server/exe_headers.h"
+
+
+
+#include <assert.h>
+#include "../game/q_shared.h"
+#include "../renderer/tr_local.h"
+#include "../qcommon/qcommon.h"
+#include "win_local.h"
+
+#if defined(_XBOX)
+#include "glw_win_dx8.h"
+#endif
+
+
+/*
+** WG_CheckHardwareGamma
+**
+** Determines if the underlying hardware supports the Win32 gamma correction API.
+*/
+void WG_CheckHardwareGamma( void )
+{
+	glConfig.deviceSupportsGamma = qtrue;
+}
+
+/*
+** GLimp_SetGamma
+**
+** This routine should only be called if glConfig.deviceSupportsGamma is TRUE
+*/
+void GLimp_SetGamma( float g ) {
+#if defined(_GAMECUBE)
+	GXGamma gamma = GX_GM_1_0;
+	if (g >= 2.2f)
+	{
+		gamma = GX_GM_2_2;
+	}
+	else if (g >= 1.7f)
+	{
+		gamma = GX_GM_1_7;
+	}
+	GXSetDispCopyGamma(gamma);
+#elif defined(_XBOX)
+	const int maxval = 255;
+
+	D3DGAMMARAMP ramp;
+	for ( int i = 0; i < 256; i++ )
+	{
+		int inf;
+		if ( g == 1 ) {
+			inf = maxval * i / 255.0f;
+		} else {
+			inf = maxval * pow ( i/255.0f, 1.0f / g ) + 0.5f;
+		}
+		if (inf < 0) {
+			inf = 0;
+		}
+		if (inf > maxval) {
+			inf = maxval;
+		}
+		ramp.red[i] = inf;
+		ramp.green[i] = inf;
+		ramp.blue[i] = inf;
+	}
+	glw_state->device->SetGammaRamp(D3DSGR_CALIBRATE, &ramp);
+#endif
+}
+