kc3-lang/angle/src/libANGLE/renderer/ProgramPipelineImpl.cpp

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• Hash : d654ac9b
  Author :
  Date : 2020-12-30T12:28:41
  

  Program: Support multiple varying packings.
  
  Instead of using a single varying packing for all program stages,
  we switch to using a varying register packing for each pair of
  input/output shaders. This allows several valid use cases that use
  many varying to succeed. For instance Geometry Shaders have both
  an input and output varying packing. With tessellation shaders the
  upper bound of valid varying packings in one Program goes up even
  more.
  
  We keep multiple varying packings at once inside a new
  "ProgramVaryingPacking" class. Internally the class keeps a unique
  varying mapping for each input/output interface in the program.
  Separable programs with "open" interfaces are handled specially.
  
  Fixes a bug where varying counting was artificially limited for
  programs with more than two shaders.
  
  This CL also disables GS support when we're emulating line raster
  so we don't have to figure out the details on how to place the
  special position varying.
  
  Bug: angleproject:5496
  Change-Id: I1f9a327c4750caef570c608d86953e9d0cc5eea3
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2606532
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Tim Van Patten <timvp@google.com>
  

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• src/libANGLE/renderer/ProgramPipelineImpl.cpp

• //
  // Copyright 2020 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // ProgramPipelineImpl.cpp: Defines the abstract rx::ProgramPipelineImpl class.
  
  #include "libANGLE/renderer/ProgramPipelineImpl.h"
  
  namespace rx
  {
  
  angle::Result ProgramPipelineImpl::link(const gl::Context *context,
                                          const gl::ProgramMergedVaryings &mergedVaryings,
                                          const gl::ProgramVaryingPacking &varyingPacking)
  {
      return angle::Result::Continue;
  }
  
  }  // namespace rx
  

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