kc3-lang/angle/src/libANGLE/renderer/metal/shaders/rewrite_indices_shared.h

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• Hash : cfc4db34
  Author :
  Date : 2021-11-04T16:54:15
  

  Metal: Provoking vertex support for Metal DrawArrays
  
  Add in provoking vertex rewrite support for
  drawArrays command, enabling 6 dEQP tests.
  
  GLES3/functional_rasterization_flatshading_line_loop
  GLES3/functional_rasterization_flatshading_line_strip
  GLES3/functional_rasterization_flatshading_lines
  GLES3/functional_rasterization_flatshading_triangle_fan
  GLES3/functional_rasterization_flatshading_triangle_strip
  GLES3/functional_rasterization_flatshading_triangles
  
  This patch adds a new shader to the Provoking
  Vertex helper that generates draw commands for
  all simple data types.
  
  Fix bug in provoking vertex helper that caused
  reused index buffers to suffer from allocation issues.
  
  Also fix Provoking vertex for triangle fan generation
  
  Bug: angleproject:5325
  Change-Id: I7a1211dfcd99329868269ea0666eef1915d487b5
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3261635
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  Commit-Queue: Kyle Piddington <kpiddington@apple.com>
  

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• src/libANGLE/renderer/metal/shaders/rewrite_indices_shared.h

• //
  // Copyright 2021 The ANGLE Project. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // rewrite_incides_shared:
  // defines for provoking vertex rewriting.
  
  #ifndef rewrite_indices_shared_h
  #define rewrite_indices_shared_h
  #define MTL_FIX_INDEX_BUFFER_KEY_FUNCTION_CONSTANT_INDEX 1
  
  #define MtlFixIndexBufferKeyTypeMask 0x03U
  #define MtlFixIndexBufferKeyInShift 0U
  #define MtlFixIndexBufferKeyOutShift 2U
  #define MtlFixIndexBufferKeyVoid 0U
  #define MtlFixIndexBufferKeyUint16 2U
  #define MtlFixIndexBufferKeyUint32 3U
  #define MtlFixIndexBufferKeyModeMask 0x0FU
  #define MtlFixIndexBufferKeyModeShift 4U
  #define MtlFixIndexBufferKeyPoints 0x00U
  #define MtlFixIndexBufferKeyLines 0x01U
  #define MtlFixIndexBufferKeyLineLoop 0x02U
  #define MtlFixIndexBufferKeyLineStrip 0x03U
  #define MtlFixIndexBufferKeyTriangles 0x04U
  #define MtlFixIndexBufferKeyTriangleStrip 0x05U
  #define MtlFixIndexBufferKeyTriangleFan 0x06U
  #define MtlFixIndexBufferKeyPrimRestart 0x00100U
  #define MtlFixIndexBufferKeyProvokingVertexLast 0x00200U
  #endif /* rewrite_indices_shared_h */
  

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