kc3-lang/angle/src/libANGLE/angletypes.cpp

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• Author : Jamie Madill
  Date : 2015-11-24 13:00:07
  Hash : cc86d64e
  Message : Make Framebuffer size check ES2-only. This is an ES2-only incompleteness check. We also need to require matching dimensions in D3D11, but make this an implementation specific check. Also make all implementation specific errors 'UNSUPPORTED' since that catches all "non-ES" framebuffer restrictions. Note that we can't be conformant here in D3D11 currently, since the spec only makes an exception for mismatching formats for UNSUPPORTED, not for size checks. However, we don't have an easy solution. BUG=angleproject:1225 Change-Id: Ic80a04bce397fc12643b010c874f432033babc5d Reviewed-on: https://chromium-review.googlesource.com/313990 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tryjob-Request: Jamie Madill <jmadill@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>

• src/libANGLE/angletypes.cpp

• //
  // Copyright (c) 2013 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.
  //
  
  // angletypes.h : Defines a variety of structures and enum types that are used throughout libGLESv2
  
  #include "libANGLE/angletypes.h"
  #include "libANGLE/Program.h"
  #include "libANGLE/VertexAttribute.h"
  #include "libANGLE/State.h"
  #include "libANGLE/VertexArray.h"
  
  namespace gl
  {
  
  PrimitiveType GetPrimitiveType(GLenum drawMode)
  {
      switch (drawMode)
      {
          case GL_POINTS:
              return PRIMITIVE_POINTS;
          case GL_LINES:
              return PRIMITIVE_LINES;
          case GL_LINE_STRIP:
              return PRIMITIVE_LINE_STRIP;
          case GL_LINE_LOOP:
              return PRIMITIVE_LINE_LOOP;
          case GL_TRIANGLES:
              return PRIMITIVE_TRIANGLES;
          case GL_TRIANGLE_STRIP:
              return PRIMITIVE_TRIANGLE_STRIP;
          case GL_TRIANGLE_FAN:
              return PRIMITIVE_TRIANGLE_FAN;
          default:
              UNREACHABLE();
              return PRIMITIVE_TYPE_MAX;
      }
  }
  
  SamplerState::SamplerState()
      : minFilter(GL_NEAREST_MIPMAP_LINEAR),
        magFilter(GL_LINEAR),
        wrapS(GL_REPEAT),
        wrapT(GL_REPEAT),
        wrapR(GL_REPEAT),
        maxAnisotropy(1.0f),
        minLod(-1000.0f),
        maxLod(1000.0f),
        compareMode(GL_NONE),
        compareFunc(GL_LEQUAL)
  {
  }
  
  TextureState::TextureState()
      : swizzleRed(GL_RED),
        swizzleGreen(GL_GREEN),
        swizzleBlue(GL_BLUE),
        swizzleAlpha(GL_ALPHA),
        samplerState(),
        baseLevel(0),
        maxLevel(1000),
        immutableFormat(false),
        immutableLevels(0)
  {
  }
  
  bool TextureState::swizzleRequired() const
  {
      return swizzleRed != GL_RED || swizzleGreen != GL_GREEN ||
             swizzleBlue != GL_BLUE || swizzleAlpha != GL_ALPHA;
  }
  
  static void MinMax(int a, int b, int *minimum, int *maximum)
  {
      if (a < b)
      {
          *minimum = a;
          *maximum = b;
      }
      else
      {
          *minimum = b;
          *maximum = a;
      }
  }
  
  bool ClipRectangle(const Rectangle &source, const Rectangle &clip, Rectangle *intersection)
  {
      int minSourceX, maxSourceX, minSourceY, maxSourceY;
      MinMax(source.x, source.x + source.width, &minSourceX, &maxSourceX);
      MinMax(source.y, source.y + source.height, &minSourceY, &maxSourceY);
  
      int minClipX, maxClipX, minClipY, maxClipY;
      MinMax(clip.x, clip.x + clip.width, &minClipX, &maxClipX);
      MinMax(clip.y, clip.y + clip.height, &minClipY, &maxClipY);
  
      if (minSourceX >= maxClipX || maxSourceX <= minClipX || minSourceY >= maxClipY || maxSourceY <= minClipY)
      {
          if (intersection)
          {
              intersection->x = minSourceX;
              intersection->y = maxSourceY;
              intersection->width = maxSourceX - minSourceX;
              intersection->height = maxSourceY - minSourceY;
          }
  
          return false;
      }
      else
      {
          if (intersection)
          {
              intersection->x = std::max(minSourceX, minClipX);
              intersection->y = std::max(minSourceY, minClipY);
              intersection->width  = std::min(maxSourceX, maxClipX) - std::max(minSourceX, minClipX);
              intersection->height = std::min(maxSourceY, maxClipY) - std::max(minSourceY, minClipY);
          }
  
          return true;
      }
  }
  
  bool Box::operator==(const Box &other) const
  {
      return (x == other.x && y == other.y && z == other.z &&
              width == other.width && height == other.height && depth == other.depth);
  }
  
  bool Box::operator!=(const Box &other) const
  {
      return !(*this == other);
  }
  
  bool operator==(const Extents &lhs, const Extents &rhs)
  {
      return lhs.width == rhs.width && lhs.height == rhs.height && lhs.depth == rhs.depth;
  }
  
  bool operator!=(const Extents &lhs, const Extents &rhs)
  {
      return !(lhs == rhs);
  }
  }