kc3-lang/angle/src/libANGLE/renderer/gl/formatutilsgl.h

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• Hash : 23a2ae0c
  Author :
  Date : 2015-07-28T12:42:52
  

  Centralize GL format workarounds.
  
  Instead of trying to encapsulate the GL texture format workarounds into
  tables, use functions that do manual checks for specific cases.  Simplifies
  the logic.
  
  Fixes:
   * conformance/extensions/ext-sRGB.html
   * conformance/extensions/oes-texture-half-float.html
   * conformance/extensions/oes-texture-half-float-with-canvas.html
   * conformance/extensions/oes-texture-half-float-with-image.htm
   * conformance/extensions/oes-texture-half-float-with-video.html
  
  BUG=angleproject:884
  
  Change-Id: Ifb719fff908680fddc7c53a544e2284a42a58356
  Reviewed-on: https://chromium-review.googlesource.com/289082
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/gl/formatutilsgl.h

• //
  // Copyright (c) 2015 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.
  //
  
  // formatutilsgl.h: Queries for GL image formats and their translations to native
  // GL formats.
  
  #ifndef LIBANGLE_RENDERER_GL_FORMATUTILSGL_H_
  #define LIBANGLE_RENDERER_GL_FORMATUTILSGL_H_
  
  #include <map>
  #include <string>
  #include <vector>
  
  #include "angle_gl.h"
  #include "libANGLE/Version.h"
  #include "libANGLE/renderer/gl/FunctionsGL.h"
  #include "libANGLE/renderer/gl/WorkaroundsGL.h"
  
  namespace rx
  {
  
  namespace nativegl
  {
  
  struct SupportRequirement
  {
      SupportRequirement();
  
      // Version that this format became supported without extensions
      gl::Version version;
  
      // Extensions that are required if the minimum version is not met
      std::vector<std::string> versionExtensions;
  
      // Extensions that are always required to support this format
      std::vector<std::string> requiredExtensions;
  };
  
  struct InternalFormat
  {
      InternalFormat();
  
      SupportRequirement texture;
      SupportRequirement filter;
      SupportRequirement renderbuffer;
      SupportRequirement framebufferAttachment;
  };
  const InternalFormat &GetInternalFormatInfo(GLenum internalFormat, StandardGL standard);
  
  struct TexImageFormat
  {
      GLenum internalFormat;
      GLenum format;
      GLenum type;
  };
  TexImageFormat GetTexImageFormat(const FunctionsGL *functions,
                                   const WorkaroundsGL &workarounds,
                                   GLenum internalFormat,
                                   GLenum format,
                                   GLenum type);
  
  struct TexSubImageFormat
  {
      GLenum format;
      GLenum type;
  };
  TexSubImageFormat GetTexSubImageFormat(const FunctionsGL *functions,
                                         const WorkaroundsGL &workarounds,
                                         GLenum format,
                                         GLenum type);
  
  struct CompressedTexImageFormat
  {
      GLenum internalFormat;
  };
  CompressedTexImageFormat GetCompressedTexImageFormat(const FunctionsGL *functions,
                                                       const WorkaroundsGL &workarounds,
                                                       GLenum internalFormat);
  
  struct CompressedTexSubImageFormat
  {
      GLenum format;
  };
  CompressedTexSubImageFormat GetCompressedSubTexImageFormat(const FunctionsGL *functions,
                                                             const WorkaroundsGL &workarounds,
                                                             GLenum format);
  
  struct CopyTexImageImageFormat
  {
      GLenum internalFormat;
  };
  CopyTexImageImageFormat GetCopyTexImageImageFormat(const FunctionsGL *functions,
                                                     const WorkaroundsGL &workarounds,
                                                     GLenum internalFormat,
                                                     GLenum framebufferType);
  
  struct TexStorageFormat
  {
      GLenum internalFormat;
  };
  TexStorageFormat GetTexStorageFormat(const FunctionsGL *functions,
                                       const WorkaroundsGL &workarounds,
                                       GLenum internalFormat);
  
  struct RenderbufferFormat
  {
      GLenum internalFormat;
  };
  RenderbufferFormat GetRenderbufferFormat(const FunctionsGL *functions,
                                           const WorkaroundsGL &workarounds,
                                           GLenum internalFormat);
  }
  
  }
  
  #endif // LIBANGLE_RENDERER_GL_FORMATUTILSGL_H_
  

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