diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_buffers.c')
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_buffers.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_buffers.c b/src/mesa/drivers/dri/intel/intel_buffers.c index d2fad9e4ea1..44e34330a6b 100644 --- a/src/mesa/drivers/dri/intel/intel_buffers.c +++ b/src/mesa/drivers/dri/intel/intel_buffers.c @@ -345,6 +345,23 @@ intelDrawBuffer(GLcontext * ctx, GLenum mode) static void intelReadBuffer(GLcontext * ctx, GLenum mode) { + if ((ctx->DrawBuffer != NULL) && (ctx->DrawBuffer->Name == 0)) { + struct intel_context *const intel = intel_context(ctx); + const GLboolean was_front_buffer_reading = + intel->is_front_buffer_reading; + + intel->is_front_buffer_reading = (mode == GL_FRONT_LEFT) + || (mode == GL_FRONT); + + /* If we weren't front-buffer reading before but we are now, make sure + * that the front-buffer has actually been allocated. + */ + if (!was_front_buffer_reading && intel->is_front_buffer_reading) { + intel_update_renderbuffers(intel->driContext, + intel->driContext->driDrawablePriv); + } + } + if (ctx->ReadBuffer == ctx->DrawBuffer) { /* This will update FBO completeness status. * A framebuffer will be incomplete if the GL_READ_BUFFER setting |