meta_blit: properly compute texture width for the CopyTexSubImage fallback

Cc: "10.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

diff --git a/src/mesa/drivers/common/meta_blit.c b/src/mesa/drivers/common/meta_blit.c
index f26ef93..bbf0c3c 100644 (file)
--- a/src/mesa/drivers/common/meta_blit.c
+++ b/src/mesa/drivers/common/meta_blit.c
@@ -407,7 +407,7 @@ blitframebuffer_texture(struct gl_context *ctx,
       }
    } else {
       GLenum tex_base_format;
-      int srcW = abs(srcY1 - srcY0);
+      int srcW = abs(srcX1 - srcX0);
       int srcH = abs(srcY1 - srcY0);
       /* Fall back to doing a CopyTexSubImage to get the destination
        * renderbuffer into a texture.