From: Marek Olšák <maraeo@gmail.com>
Date: Mon, 14 Mar 2011 09:20:55 +0000 (+0100)
Subject: mesa: fix up assertion in _mesa_source_buffer_exists
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c0110d5450f2d4722652728a6b30bc9ae6b81c60;p=mesa.git

mesa: fix up assertion in _mesa_source_buffer_exists

This was probably missed when implementing luminance and luminance alpha
render targets.

_mesa_get_format_bits checks for both GL_*_BITS and GL_TEXTURE_*_SIZE.

This fixes:
main/framebuffer.c:892: _mesa_source_buffer_exists: Assertion `....' failed.
---

diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c
index 8916441f455..430e013d017 100644
--- a/src/mesa/main/framebuffer.c
+++ b/src/mesa/main/framebuffer.c
@@ -889,6 +889,8 @@ _mesa_source_buffer_exists(struct gl_context *ctx, GLenum format)
       }
       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_TEXTURE_LUMINANCE_SIZE) > 0 ||
+             _mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_TEXTURE_INTENSITY_SIZE) > 0 ||
              _mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_INDEX_BITS) > 0);
       break;
    case GL_DEPTH: