message: Fix handling of doubles in GL transform feedback
diff: @@ -872,6 +872,7 @@ void GLReplay::InitPostVSBuffers(uint32_t eventId)
  drv.glAttachShader(feedbackProg, stageShaders[i]);
  varyings.clear();
  + matrixVaryings.clear();
  stride = 0;
  posidx = -1;
  @@ -906,7 +907,9 @@ void GLReplay::InitPostVSBuffers(uint32_t eventId)
  if(sig.systemValue == ShaderBuiltin::Position)
  posidx = int32_t(varyings.size()) - 1;
  - stride += sizeof(float) * sig.compCount;
  + uint32_t elemSize = sig.compType == CompType::Double ? sizeof(double) : sizeof(float);
  +
  + stride += elemSize * sig.compCount;
  }
  // shift position attribute up to first, keeping order otherwise
  