Mesa (7.10): st/wgl: Prevent spurious framebuffer sizes when the window is minimized.
Jose Fonseca
jrfonseca at kemper.freedesktop.org
Sun Jun 12 08:25:01 UTC 2011
Module: Mesa
Branch: 7.10
Commit: ac28843c1ad9cf8aaa57218c2bf3bbe56804df6b
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=ac28843c1ad9cf8aaa57218c2bf3bbe56804df6b
Author: José Fonseca <jfonseca at vmware.com>
Date: Thu Apr 7 19:15:55 2011 +0100
st/wgl: Prevent spurious framebuffer sizes when the window is minimized.
When the window is minimized GetClientRect will return zeros.
Instead of creating a 1x1 framebuffer, simply preserve the current window
size, until the window is restored or maximized again.
---
src/gallium/state_trackers/wgl/stw_framebuffer.c | 17 ++++++++++++-----
1 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/src/gallium/state_trackers/wgl/stw_framebuffer.c b/src/gallium/state_trackers/wgl/stw_framebuffer.c
index 670e542..d8b1440 100644
--- a/src/gallium/state_trackers/wgl/stw_framebuffer.c
+++ b/src/gallium/state_trackers/wgl/stw_framebuffer.c
@@ -112,7 +112,7 @@ stw_framebuffer_release(
static INLINE void
stw_framebuffer_get_size( struct stw_framebuffer *fb )
{
- unsigned width, height;
+ LONG width, height;
RECT client_rect;
RECT window_rect;
POINT client_pos;
@@ -126,10 +126,17 @@ stw_framebuffer_get_size( struct stw_framebuffer *fb )
width = client_rect.right - client_rect.left;
height = client_rect.bottom - client_rect.top;
- if(width < 1)
- width = 1;
- if(height < 1)
- height = 1;
+ if (width <= 0 || height <= 0) {
+ /*
+ * When the window is minimized GetClientRect will return zeros. Simply
+ * preserve the current window size, until the window is restored or
+ * maximized again.
+ */
+
+ assert(width == 0 && height == 0);
+
+ return;
+ }
if(width != fb->width || height != fb->height) {
fb->must_resize = TRUE;
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