From: Roland Scheidegger <sroland@tungstengraphics.com>
Date: Mon, 16 Jul 2007 16:09:30 +0000 (+0200)
Subject: fix segfault with i915 drivers in swrast drawpixels path when resizing windows
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fb3b9060d48934ca4faa72e966c00aee627ce96d;p=mesa.git

fix segfault with i915 drivers in swrast drawpixels path when resizing windows
---

diff --git a/src/mesa/drivers/dri/i915/intel_pixel.c b/src/mesa/drivers/dri/i915/intel_pixel.c
index d175870a0c5..c3030d42b04 100644
--- a/src/mesa/drivers/dri/i915/intel_pixel.c
+++ b/src/mesa/drivers/dri/i915/intel_pixel.c
@@ -450,10 +450,16 @@ intelDrawPixels( GLcontext *ctx,
        * wise happily run the fragment program on each pixel in the image).
        */
       struct gl_fragment_program *fpSave = ctx->FragmentProgram._Current;
+   /* can't just set current frag prog to 0 here as on buffer resize
+      we'll get new state checks which will segfault. Remains a hack. */
       ctx->FragmentProgram._Current = NULL;
+      ctx->FragmentProgram._UseTexEnvProgram = GL_FALSE;
+      ctx->FragmentProgram._Active = GL_FALSE;
       _swrast_DrawPixels( ctx, x, y, width, height, format, type,
                           unpack, pixels );
       ctx->FragmentProgram._Current = fpSave;
+      ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE;
+      ctx->FragmentProgram._Active = GL_TRUE;
    }
    else {
       _swrast_DrawPixels( ctx, x, y, width, height, format, type,
diff --git a/src/mesa/drivers/dri/i915tex/intel_pixel_draw.c b/src/mesa/drivers/dri/i915tex/intel_pixel_draw.c
index 77c67c821eb..e4e57cb3a7e 100644
--- a/src/mesa/drivers/dri/i915tex/intel_pixel_draw.c
+++ b/src/mesa/drivers/dri/i915tex/intel_pixel_draw.c
@@ -370,10 +370,16 @@ intelDrawPixels(GLcontext * ctx,
        * wise happily run the fragment program on each pixel in the image).
        */
       struct gl_fragment_program *fpSave = ctx->FragmentProgram._Current;
+   /* can't just set current frag prog to 0 here as on buffer resize
+      we'll get new state checks which will segfault. Remains a hack. */
       ctx->FragmentProgram._Current = NULL;
+      ctx->FragmentProgram._UseTexEnvProgram = GL_FALSE;
+      ctx->FragmentProgram._Active = GL_FALSE;
       _swrast_DrawPixels( ctx, x, y, width, height, format, type,
                           unpack, pixels );
       ctx->FragmentProgram._Current = fpSave;
+      ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE;
+      ctx->FragmentProgram._Active = GL_TRUE;
    }
    else {
       _swrast_DrawPixels( ctx, x, y, width, height, format, type,