Simplify ctx->_NumColorDrawBuffers, _ColorDrawBuffers and fix bug 13835.

These fields are no longer indexed by shader output.  Now, we just have
a simple array of renderbuffer pointers.

If the shader writes to gl_FragData[i], send those colors to the N
_ColorDrawBuffers.  Otherwise, replicate the single gl_FragColor (or
the fixed-function color) to the N _ColorDrawBuffers.

A few more changes and simplifications can follow from this...

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i915/intel_state.c b/src/mesa/drivers/dri/i915/intel_state.c
index 4bcc9af2b6..d1ca11dec4 100644
--- a/src/mesa/drivers/dri/i915/intel_state.c
+++ b/src/mesa/drivers/dri/i915/intel_state.c
@@ -234,7 +234,7 @@ intelCalcViewport(GLcontext * ctx)
    if (ctx->DrawBuffer->Name) {
       /* User created FBO */
       struct intel_renderbuffer *irb
-         = intel_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0][0]);
+         = intel_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0]);
       if (irb && !irb->RenderToTexture) {
          /* y=0=top */
          yScale = -1.0;