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xlib: use MESA_FORMAT_XRGB8888 for pixmap surfaces

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We no longer have software-allocated alpha buffers so we can forget
about the alpha channel.

Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Brian Paul
2011-11-12 11:50:31 -07:00
parent dff2394e08
commit c9bfad2921
1 changed files with 1 additions and 12 deletions
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13
src/mesa/drivers/x11/xm_buffer.c
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@@ -349,7 +349,7 @@ xmesa_new_renderbuffer(struct gl_context *ctx, GLuint name,
/* This will really only happen for pixmaps. We'll access the
* pixmap via a temporary XImage which will be 32bpp.
*/
xrb->Base.Format = MESA_FORMAT_ARGB8888;
xrb->Base.Format = MESA_FORMAT_XRGB8888;
break;
case PF_8A8R8G8B:
xrb->Base.Format = MESA_FORMAT_ARGB8888;
@@ -477,17 +477,6 @@ xmesa_MapRenderbuffer(struct gl_context *ctx,
return;
}
if (xrb->Base.Format == MESA_FORMAT_ARGB8888 ||
xrb->Base.Format == MESA_FORMAT_RGBA8888_REV) {
/* The original pixmap is RGB but we're returning an RGBA
* image buffer. Fill in the A values with 0xff.
*/
GLuint i, *p = (GLuint *) ximage->data;
for (i = 0; i < w * h; i++) {
p[i] |= 0xff000000;
}
}
xrb->map_ximage = ximage;
/* the first row of the OpenGL image is last row of the XImage */