зеркало из https://github.com/mozilla/gecko-dev.git
120 строки
3.1 KiB
C++
120 строки
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "WebGLBuffer.h"
|
|
|
|
#include "GLContext.h"
|
|
#include "mozilla/dom/WebGLRenderingContextBinding.h"
|
|
#include "WebGLContext.h"
|
|
#include "WebGLElementArrayCache.h"
|
|
|
|
namespace mozilla {
|
|
|
|
WebGLBuffer::WebGLBuffer(WebGLContext* webgl, GLuint buf)
|
|
: WebGLContextBoundObject(webgl)
|
|
, mGLName(buf)
|
|
, mContent(Kind::Undefined)
|
|
, mByteLength(0)
|
|
{
|
|
mContext->mBuffers.insertBack(this);
|
|
}
|
|
|
|
WebGLBuffer::~WebGLBuffer()
|
|
{
|
|
DeleteOnce();
|
|
}
|
|
|
|
void
|
|
WebGLBuffer::BindTo(GLenum target)
|
|
{
|
|
switch (target) {
|
|
case LOCAL_GL_ELEMENT_ARRAY_BUFFER:
|
|
mContent = Kind::ElementArray;
|
|
if (!mCache)
|
|
mCache = new WebGLElementArrayCache;
|
|
break;
|
|
|
|
case LOCAL_GL_ARRAY_BUFFER:
|
|
case LOCAL_GL_PIXEL_PACK_BUFFER:
|
|
case LOCAL_GL_PIXEL_UNPACK_BUFFER:
|
|
case LOCAL_GL_UNIFORM_BUFFER:
|
|
case LOCAL_GL_TRANSFORM_FEEDBACK_BUFFER:
|
|
mContent = Kind::OtherData;
|
|
break;
|
|
|
|
case LOCAL_GL_COPY_READ_BUFFER:
|
|
case LOCAL_GL_COPY_WRITE_BUFFER:
|
|
if (mContent == Kind::Undefined) {
|
|
mContent = Kind::OtherData;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
MOZ_CRASH("GFX: invalid target");
|
|
}
|
|
}
|
|
|
|
void
|
|
WebGLBuffer::Delete()
|
|
{
|
|
mContext->MakeContextCurrent();
|
|
mContext->gl->fDeleteBuffers(1, &mGLName);
|
|
mByteLength = 0;
|
|
mCache = nullptr;
|
|
LinkedListElement<WebGLBuffer>::remove(); // remove from mContext->mBuffers
|
|
}
|
|
|
|
bool
|
|
WebGLBuffer::ElementArrayCacheBufferData(const void* ptr,
|
|
size_t bufferSizeInBytes)
|
|
{
|
|
if (mContent == Kind::ElementArray)
|
|
return mCache->BufferData(ptr, bufferSizeInBytes);
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
WebGLBuffer::ElementArrayCacheBufferSubData(size_t pos, const void* ptr,
|
|
size_t updateSizeInBytes)
|
|
{
|
|
if (mContent == Kind::ElementArray)
|
|
mCache->BufferSubData(pos, ptr, updateSizeInBytes);
|
|
}
|
|
|
|
size_t
|
|
WebGLBuffer::SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf) const
|
|
{
|
|
size_t sizeOfCache = mCache ? mCache->SizeOfIncludingThis(mallocSizeOf)
|
|
: 0;
|
|
return mallocSizeOf(this) + sizeOfCache;
|
|
}
|
|
|
|
bool
|
|
WebGLBuffer::Validate(GLenum type, uint32_t maxAllowed, size_t first,
|
|
size_t count, uint32_t* const out_upperBound)
|
|
{
|
|
return mCache->Validate(type, maxAllowed, first, count, out_upperBound);
|
|
}
|
|
|
|
bool
|
|
WebGLBuffer::IsElementArrayUsedWithMultipleTypes() const
|
|
{
|
|
return mCache->BeenUsedWithMultipleTypes();
|
|
}
|
|
|
|
JSObject*
|
|
WebGLBuffer::WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto)
|
|
{
|
|
return dom::WebGLBufferBinding::Wrap(cx, this, givenProto);
|
|
}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(WebGLBuffer)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLBuffer, AddRef)
|
|
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLBuffer, Release)
|
|
|
|
} // namespace mozilla
|