diff options
Diffstat (limited to 'src/mesa/main/convolve.c')
| -rw-r--r-- | src/mesa/main/convolve.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mesa/main/convolve.c b/src/mesa/main/convolve.c index 70951112a1..bf6f6619d4 100644 --- a/src/mesa/main/convolve.c +++ b/src/mesa/main/convolve.c @@ -482,6 +482,10 @@ _mesa_CopyConvolutionFilter1D(GLenum target, GLenum internalFormat, GLint x, GLi return; } + if (!ctx->ReadBuffer->_ColorReadBuffer) { + return; /* no readbuffer - OK */ + } + ctx->Driver.CopyConvolutionFilter1D( ctx, target, internalFormat, x, y, width); } @@ -514,6 +518,10 @@ _mesa_CopyConvolutionFilter2D(GLenum target, GLenum internalFormat, GLint x, GLi return; } + if (!ctx->ReadBuffer->_ColorReadBuffer) { + return; /* no readbuffer - OK */ + } + ctx->Driver.CopyConvolutionFilter2D( ctx, target, internalFormat, x, y, width, height ); } |