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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
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dom/canvas/WebGLSampler.cpp Normal file
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/* -*- 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 "WebGLSampler.h"
#include "GLContext.h"
#include "mozilla/dom/WebGL2RenderingContextBinding.h"
#include "WebGLContext.h"
namespace mozilla {
WebGLSampler::WebGLSampler(WebGLContext* webgl, GLuint sampler)
: WebGLRefCountedObject(webgl)
, mGLName(sampler)
, mMinFilter(LOCAL_GL_NEAREST_MIPMAP_LINEAR)
, mMagFilter(LOCAL_GL_LINEAR)
, mWrapS(LOCAL_GL_REPEAT)
, mWrapT(LOCAL_GL_REPEAT)
, mWrapR(LOCAL_GL_REPEAT)
, mMinLod(-1000)
, mMaxLod(1000)
, mCompareMode(LOCAL_GL_NONE)
, mCompareFunc(LOCAL_GL_LEQUAL)
{
mContext->mSamplers.insertBack(this);
}
WebGLSampler::~WebGLSampler()
{
DeleteOnce();
}
void
WebGLSampler::Delete()
{
mContext->MakeContextCurrent();
mContext->gl->fDeleteSamplers(1, &mGLName);
removeFrom(mContext->mSamplers);
}
WebGLContext*
WebGLSampler::GetParentObject() const
{
return mContext;
}
JSObject*
WebGLSampler::WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto)
{
return dom::WebGLSamplerBinding::Wrap(cx, this, givenProto);
}
static bool
ValidateSamplerParameterParams(WebGLContext* webgl, const char* funcName, GLenum pname,
const FloatOrInt& param)
{
const auto& paramInt = param.i;
switch (pname) {
case LOCAL_GL_TEXTURE_MIN_FILTER:
switch (paramInt) {
case LOCAL_GL_NEAREST:
case LOCAL_GL_LINEAR:
case LOCAL_GL_NEAREST_MIPMAP_NEAREST:
case LOCAL_GL_NEAREST_MIPMAP_LINEAR:
case LOCAL_GL_LINEAR_MIPMAP_NEAREST:
case LOCAL_GL_LINEAR_MIPMAP_LINEAR:
return true;
default:
break;
}
break;
case LOCAL_GL_TEXTURE_MAG_FILTER:
switch (paramInt) {
case LOCAL_GL_NEAREST:
case LOCAL_GL_LINEAR:
return true;
default:
break;
}
break;
case LOCAL_GL_TEXTURE_WRAP_S:
case LOCAL_GL_TEXTURE_WRAP_T:
case LOCAL_GL_TEXTURE_WRAP_R:
switch (paramInt) {
case LOCAL_GL_CLAMP_TO_EDGE:
case LOCAL_GL_REPEAT:
case LOCAL_GL_MIRRORED_REPEAT:
return true;
default:
break;
}
break;
case LOCAL_GL_TEXTURE_MIN_LOD:
case LOCAL_GL_TEXTURE_MAX_LOD:
return true;
case LOCAL_GL_TEXTURE_COMPARE_MODE:
switch (paramInt) {
case LOCAL_GL_NONE:
case LOCAL_GL_COMPARE_REF_TO_TEXTURE:
return true;
default:
break;
}
break;
case LOCAL_GL_TEXTURE_COMPARE_FUNC:
switch (paramInt) {
case LOCAL_GL_LEQUAL:
case LOCAL_GL_GEQUAL:
case LOCAL_GL_LESS:
case LOCAL_GL_GREATER:
case LOCAL_GL_EQUAL:
case LOCAL_GL_NOTEQUAL:
case LOCAL_GL_ALWAYS:
case LOCAL_GL_NEVER:
return true;
default:
break;
}
break;
default:
webgl->ErrorInvalidEnumArg(funcName, "pname", pname);
return false;
}
webgl->ErrorInvalidEnumArg(funcName, "param", paramInt);
return false;
}
void
WebGLSampler::SamplerParameter(const char* funcName, GLenum pname,
const FloatOrInt& param)
{
if (!ValidateSamplerParameterParams(mContext, funcName, pname, param))
return;
switch (pname) {
case LOCAL_GL_TEXTURE_MIN_FILTER:
mMinFilter = param.i;
break;
case LOCAL_GL_TEXTURE_MAG_FILTER:
mMagFilter = param.i;
break;
case LOCAL_GL_TEXTURE_WRAP_S:
mWrapS = param.i;
break;
case LOCAL_GL_TEXTURE_WRAP_T:
mWrapT = param.i;
break;
case LOCAL_GL_TEXTURE_WRAP_R:
mWrapR = param.i;
break;
case LOCAL_GL_TEXTURE_COMPARE_MODE:
mCompareMode = param.i;
break;
case LOCAL_GL_TEXTURE_COMPARE_FUNC:
mCompareFunc = param.i;
break;
case LOCAL_GL_TEXTURE_MIN_LOD:
mMinLod = param.f;
break;
case LOCAL_GL_TEXTURE_MAX_LOD:
mMaxLod = param.f;
break;
default:
MOZ_CRASH("GFX: Unhandled pname");
break;
}
for (uint32_t i = 0; i < mContext->mBoundSamplers.Length(); ++i) {
if (this == mContext->mBoundSamplers[i])
mContext->InvalidateResolveCacheForTextureWithTexUnit(i);
}
////
mContext->gl->MakeCurrent();
if (param.isFloat) {
mContext->gl->fSamplerParameterf(mGLName, pname, param.f);
} else {
mContext->gl->fSamplerParameteri(mGLName, pname, param.i);
}
}
////
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(WebGLSampler)
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLSampler, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLSampler, Release)
} // namespace mozilla