Mesa (master): mesa: fix assertion failure for GL_ALPHA FBOs

[Marek Olšák]

Module: Mesa
Branch: master
Commit: cbd33e7d3a940e4e7a7bc435f2256714115f3040
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=cbd33e7d3a940e4e7a7bc435f2256714115f3040

Author: Marek Olšák <maraeo at gmail.com>
Date:   Wed Jun 23 01:39:26 2010 +0200

mesa: fix assertion failure for GL_ALPHA FBOs

---

 src/mesa/main/framebuffer.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c
index 01f8418..56558cf 100644
--- a/src/mesa/main/framebuffer.c
+++ b/src/mesa/main/framebuffer.c
@@ -879,6 +879,7 @@ _mesa_source_buffer_exists(GLcontext *ctx, GLenum format)
          return GL_FALSE;
       }
       ASSERT(_mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_RED_BITS) > 0 ||
+             _mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_ALPHA_BITS) > 0 ||
              _mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_INDEX_BITS) > 0);
       break;
    case GL_DEPTH: