LCOV - code coverage report
Current view: top level - dom/canvas - WebGLBuffer.h (source / functions) Hit Total Coverage
Test: output.info Lines: 0 29 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 15 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #ifndef WEBGL_BUFFER_H_
       7             : #define WEBGL_BUFFER_H_
       8             : 
       9             : #include <map>
      10             : 
      11             : #include "GLDefs.h"
      12             : #include "mozilla/LinkedList.h"
      13             : #include "nsWrapperCache.h"
      14             : #include "WebGLObjectModel.h"
      15             : #include "WebGLTypes.h"
      16             : 
      17             : namespace mozilla {
      18             : 
      19             : class WebGLBuffer final
      20             :     : public nsWrapperCache
      21             :     , public WebGLRefCountedObject<WebGLBuffer>
      22             :     , public LinkedListElement<WebGLBuffer>
      23             : {
      24             :     friend class WebGLContext;
      25             :     friend class WebGL2Context;
      26             :     friend class WebGLTexture;
      27             : 
      28             : public:
      29             :     enum class Kind {
      30             :         Undefined,
      31             :         ElementArray,
      32             :         OtherData
      33             :     };
      34             : 
      35             :     WebGLBuffer(WebGLContext* webgl, GLuint buf);
      36             : 
      37             :     void SetContentAfterBind(GLenum target);
      38           0 :     Kind Content() const { return mContent; }
      39             : 
      40             :     void Delete();
      41             : 
      42             :     size_t SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf) const;
      43             : 
      44           0 :     GLenum Usage() const { return mUsage; }
      45           0 :     size_t ByteLength() const { return mByteLength; }
      46             : 
      47             :     bool ValidateIndexedFetch(GLenum type, uint32_t max_allowed, size_t first, size_t count) const;
      48             :     bool ValidateRange(const char* funcName, size_t byteOffset, size_t byteLen) const;
      49             : 
      50           0 :     WebGLContext* GetParentObject() const {
      51           0 :         return mContext;
      52             :     }
      53             : 
      54             :     virtual JSObject* WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto) override;
      55             : 
      56             :     bool ValidateCanBindToTarget(const char* funcName, GLenum target);
      57             :     void BufferData(GLenum target, size_t size, const void* data, GLenum usage);
      58             :     void BufferSubData(GLenum target, size_t dstByteOffset, size_t dataLen,
      59             :                        const void* data) const;
      60             : 
      61             :     ////
      62             : 
      63           0 :     static void AddBindCount(GLenum target, WebGLBuffer* buffer, int8_t addVal) {
      64           0 :         if (!buffer)
      65           0 :             return;
      66             : 
      67           0 :         if (target == LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER) {
      68           0 :             MOZ_ASSERT_IF(addVal < 0, buffer->mTFBindCount >= size_t(-addVal));
      69           0 :             buffer->mTFBindCount += addVal;
      70             :         } else {
      71           0 :             MOZ_ASSERT_IF(addVal < 0, buffer->mNonTFBindCount >= size_t(-addVal));
      72           0 :             buffer->mNonTFBindCount += addVal;
      73             :         }
      74             :     }
      75             : 
      76           0 :     static void SetSlot(GLenum target, WebGLBuffer* newBuffer,
      77             :                         WebGLRefPtr<WebGLBuffer>* const out_slot)
      78             :     {
      79           0 :         WebGLBuffer* const oldBuffer = *out_slot;
      80           0 :         AddBindCount(target, oldBuffer, -1);
      81           0 :         AddBindCount(target, newBuffer, +1);
      82           0 :         *out_slot = newBuffer;
      83           0 :     }
      84             : 
      85           0 :     bool IsBoundForTF() const { return bool(mTFBindCount); }
      86           0 :     bool IsBoundForNonTF() const { return bool(mNonTFBindCount); }
      87             : 
      88             :     ////
      89             : 
      90             :     const GLenum mGLName;
      91             : 
      92           0 :     NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLBuffer)
      93           0 :     NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLBuffer)
      94             : 
      95             : protected:
      96             :     ~WebGLBuffer();
      97             : 
      98             :     void InvalidateCacheRange(size_t offset, size_t length) const;
      99             : 
     100             :     Kind mContent;
     101             :     GLenum mUsage;
     102             :     size_t mByteLength;
     103             :     size_t mTFBindCount;
     104             :     size_t mNonTFBindCount;
     105             : 
     106             :     struct IndexRange final {
     107             :         GLenum type;
     108             :         size_t first;
     109             :         size_t count;
     110             : 
     111           0 :         bool operator<(const IndexRange& x) const {
     112           0 :             if (type != x.type)
     113           0 :                 return type < x.type;
     114             : 
     115           0 :             if (first != x.first)
     116           0 :                 return first < x.first;
     117             : 
     118           0 :             return count < x.count;
     119             :         }
     120             :     };
     121             : 
     122             :     UniqueBuffer mIndexCache;
     123             :     mutable std::map<IndexRange, size_t> mIndexRanges;
     124             : };
     125             : 
     126             : } // namespace mozilla
     127             : 
     128             : #endif // WEBGL_BUFFER_H_

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