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Gentoo's Bugzilla – Attachment 334240 Details for
Bug 449692
media-libs/libsdl-1.2.15 with >=x11-base/xorg-server-1.7 - cannot set gamma
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[patch]
SDL fix 2
libsdl-1.2.15-x11-Bypass-SetGammaRamp-when-changing-gamma.patch (text/plain), 1.39 KB, created by
Petr Pisar
on 2013-01-03 21:04:54 UTC
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Description:
SDL fix 2
Filename:
MIME Type:
Creator:
Petr Pisar
Created:
2013-01-03 21:04:54 UTC
Size:
1.39 KB
patch
obsolete
>From 4b56fa058a45b7c804d1a5fcaf7a70db0bd0581c Mon Sep 17 00:00:00 2001 >From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <petr.pisar@atlas.cz> >Date: Tue, 1 Jan 2013 21:25:15 +0100 >Subject: [PATCH] x11: Bypass SetGammaRamp when changing gamma > >Recent Xorg has broken dynamic colors setting, so calling SDL_SetGamme() >does not have any effect here. Recent means xorg-server >= 1.7, since 2010. >See <https://bugs.freedesktop.org/show_bug.cgi?id=27222>. >--- > src/video/SDL_gamma.c | 15 ++------------- > 1 files changed, 2 insertions(+), 13 deletions(-) > >diff --git a/src/video/SDL_gamma.c b/src/video/SDL_gamma.c >index 4fd0370..464ab88 100644 >--- a/src/video/SDL_gamma.c >+++ b/src/video/SDL_gamma.c >@@ -92,22 +92,11 @@ static void CalculateGammaFromRamp(float *gamma, Uint16 *ramp) > > int SDL_SetGamma(float red, float green, float blue) > { >- int succeeded; >+ int succeeded = -1; > SDL_VideoDevice *video = current_video; > SDL_VideoDevice *this = current_video; > >- succeeded = -1; >- /* Prefer using SetGammaRamp(), as it's more flexible */ >- { >- Uint16 ramp[3][256]; >- >- CalculateGammaRamp(red, ramp[0]); >- CalculateGammaRamp(green, ramp[1]); >- CalculateGammaRamp(blue, ramp[2]); >- succeeded = SDL_SetGammaRamp(ramp[0], ramp[1], ramp[2]); >- } >- if ( (succeeded < 0) && video->SetGamma ) { >- SDL_ClearError(); >+ if ( video->SetGamma ) { > succeeded = video->SetGamma(this, red, green, blue); > } > return succeeded; >-- >1.7.8.6 >
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bug 449692
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333968
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