Attachment 131764 Details for Bug 101326 – Patch: Allow context creation without prior SetPixelFormat()

[patch] Patch: Allow context creation without prior SetPixelFormat()

0001-gallium-wgl-Allow-context-creation-even-if-SetPixelF.patch (text/plain), 1.14 KB, created by frank.richter on 2017-06-07 09:21:27 UTC

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Creator: frank.richter

Created: 2017-06-07 09:21:27 UTC

Size: 1.14 KB

patch

obsolete

>From 5fa26da7a7d5af41268085fae00f8c3172cab18a Mon Sep 17 00:00:00 2001
>From: Frank Richter <frank.richter@dynardo.de>
>Date: Wed, 7 Jun 2017 09:43:43 +0200
>Subject: [PATCH] gallium/wgl: Allow context creation even if SetPixelFormat()
> wasn't called before
>
>---
> src/gallium/state_trackers/wgl/stw_context.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
>diff --git a/src/gallium/state_trackers/wgl/stw_context.c b/src/gallium/state_trackers/wgl/stw_context.c
>index f3145a9..8df6abd 100644
>--- a/src/gallium/state_trackers/wgl/stw_context.c
>+++ b/src/gallium/state_trackers/wgl/stw_context.c
>@@ -170,7 +170,12 @@ stw_create_context_attribs(HDC hdc, INT iLayerPlane, DHGLRC hShareContext,
>       iPixelFormat = fb->iPixelFormat;
>       stw_framebuffer_unlock(fb);
>    } else {
>-      return 0;
>+      /* Applications should call SetPixelFormat before creating a context,
>+       * but not all do, and the opengl32 runtime seems to use a default
>+       * pixel format in some cases, so use that.
>+       */
>+      iPixelFormat = GetPixelFormat( hdc );
>+      if (!iPixelFormat) return 0;
>    }
> 
>    pfi = stw_pixelformat_get_info( iPixelFormat );
>-- 
>2.9.4
>

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