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From 4b56fa058a45b7c804d1a5fcaf7a70db0bd0581c Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <petr.pisar@atlas.cz>
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Date: Tue, 1 Jan 2013 21:25:15 +0100
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Subject: [PATCH] x11: Bypass SetGammaRamp when changing gamma
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Recent Xorg has broken dynamic colors setting, so calling SDL_SetGamme()
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does not have any effect here. Recent means xorg-server >= 1.7, since 2010.
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See <https://bugs.freedesktop.org/show_bug.cgi?id=27222>.
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---
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src/video/SDL_gamma.c | 15 ++-------------
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1 files changed, 2 insertions(+), 13 deletions(-)
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diff --git a/src/video/SDL_gamma.c b/src/video/SDL_gamma.c
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index 4fd0370..464ab88 100644
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--- a/src/video/SDL_gamma.c
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+++ b/src/video/SDL_gamma.c
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@@ -92,22 +92,11 @@ static void CalculateGammaFromRamp(float *gamma, Uint16 *ramp)
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int SDL_SetGamma(float red, float green, float blue)
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{
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- int succeeded;
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+ int succeeded = -1;
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SDL_VideoDevice *video = current_video;
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SDL_VideoDevice *this = current_video;
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- succeeded = -1;
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- /* Prefer using SetGammaRamp(), as it's more flexible */
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- {
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- Uint16 ramp[3][256];
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-
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- CalculateGammaRamp(red, ramp[0]);
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- CalculateGammaRamp(green, ramp[1]);
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- CalculateGammaRamp(blue, ramp[2]);
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- succeeded = SDL_SetGammaRamp(ramp[0], ramp[1], ramp[2]);
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- }
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- if ( (succeeded < 0) && video->SetGamma ) {
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- SDL_ClearError();
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+ if ( video->SetGamma ) {
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succeeded = video->SetGamma(this, red, green, blue);
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}
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return succeeded;
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--
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1.7.8.6
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