зеркало из https://github.com/mozilla/gecko-dev.git
165 строки
4.0 KiB
C++
165 строки
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 4; 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 "WebGL2Context.h"
|
|
#include "WebGLActiveInfo.h"
|
|
#include "WebGLProgram.h"
|
|
#include "WebGLTransformFeedback.h"
|
|
#include "GLContext.h"
|
|
|
|
namespace mozilla {
|
|
|
|
// -------------------------------------------------------------------------
|
|
// Transform Feedback
|
|
|
|
already_AddRefed<WebGLTransformFeedback>
|
|
WebGL2Context::CreateTransformFeedback()
|
|
{
|
|
if (IsContextLost())
|
|
return nullptr;
|
|
|
|
MakeContextCurrent();
|
|
GLuint tf = 0;
|
|
gl->fGenTransformFeedbacks(1, &tf);
|
|
|
|
RefPtr<WebGLTransformFeedback> ret = new WebGLTransformFeedback(this, tf);
|
|
return ret.forget();
|
|
}
|
|
|
|
void
|
|
WebGL2Context::DeleteTransformFeedback(WebGLTransformFeedback* tf)
|
|
{
|
|
const char funcName[] = "deleteTransformFeedback";
|
|
if (IsContextLost())
|
|
return;
|
|
|
|
if (!ValidateObject(funcName, tf))
|
|
return;
|
|
|
|
if (tf->mIsActive) {
|
|
ErrorInvalidOperation("%s: Cannot delete active transform feedbacks.", funcName);
|
|
return;
|
|
}
|
|
|
|
if (mBoundTransformFeedback == tf) {
|
|
BindTransformFeedback(LOCAL_GL_TRANSFORM_FEEDBACK, nullptr);
|
|
}
|
|
|
|
tf->RequestDelete();
|
|
}
|
|
|
|
bool
|
|
WebGL2Context::IsTransformFeedback(WebGLTransformFeedback* tf)
|
|
{
|
|
if (IsContextLost())
|
|
return false;
|
|
|
|
if (!ValidateObjectAllowDeletedOrNull("isTransformFeedback", tf))
|
|
return false;
|
|
|
|
if (!tf || tf->IsDeleted())
|
|
return false;
|
|
|
|
MakeContextCurrent();
|
|
return gl->fIsTransformFeedback(tf->mGLName);
|
|
}
|
|
|
|
void
|
|
WebGL2Context::BindTransformFeedback(GLenum target, WebGLTransformFeedback* tf)
|
|
{
|
|
const char funcName[] = "bindTransformFeedback";
|
|
if (IsContextLost())
|
|
return;
|
|
|
|
if (target != LOCAL_GL_TRANSFORM_FEEDBACK)
|
|
return ErrorInvalidEnum("%s: `target` must be TRANSFORM_FEEDBACK.", funcName);
|
|
|
|
if (!ValidateObjectAllowDeletedOrNull(funcName, tf))
|
|
return;
|
|
|
|
if (tf && tf->IsDeleted())
|
|
return ErrorInvalidOperation("%s: TFO already deleted.", funcName);
|
|
|
|
if (mBoundTransformFeedback->mIsActive &&
|
|
!mBoundTransformFeedback->mIsPaused)
|
|
{
|
|
ErrorInvalidOperation("%s: Currently bound transform feedback is active and not"
|
|
" paused.",
|
|
funcName);
|
|
return;
|
|
}
|
|
|
|
////
|
|
|
|
mBoundTransformFeedback = (tf ? tf : mDefaultTransformFeedback);
|
|
|
|
MakeContextCurrent();
|
|
gl->fBindTransformFeedback(target, mBoundTransformFeedback->mGLName);
|
|
}
|
|
|
|
void
|
|
WebGL2Context::BeginTransformFeedback(GLenum primMode)
|
|
{
|
|
if (IsContextLost())
|
|
return;
|
|
|
|
mBoundTransformFeedback->BeginTransformFeedback(primMode);
|
|
}
|
|
|
|
void
|
|
WebGL2Context::EndTransformFeedback()
|
|
{
|
|
if (IsContextLost())
|
|
return;
|
|
|
|
mBoundTransformFeedback->EndTransformFeedback();
|
|
}
|
|
|
|
void
|
|
WebGL2Context::PauseTransformFeedback()
|
|
{
|
|
if (IsContextLost())
|
|
return;
|
|
|
|
mBoundTransformFeedback->PauseTransformFeedback();
|
|
}
|
|
|
|
void
|
|
WebGL2Context::ResumeTransformFeedback()
|
|
{
|
|
if (IsContextLost())
|
|
return;
|
|
|
|
mBoundTransformFeedback->ResumeTransformFeedback();
|
|
}
|
|
|
|
void
|
|
WebGL2Context::TransformFeedbackVaryings(WebGLProgram* program,
|
|
const dom::Sequence<nsString>& varyings,
|
|
GLenum bufferMode)
|
|
{
|
|
if (IsContextLost())
|
|
return;
|
|
|
|
if (!ValidateObject("transformFeedbackVaryings: program", program))
|
|
return;
|
|
|
|
program->TransformFeedbackVaryings(varyings, bufferMode);
|
|
}
|
|
|
|
already_AddRefed<WebGLActiveInfo>
|
|
WebGL2Context::GetTransformFeedbackVarying(WebGLProgram* program, GLuint index)
|
|
{
|
|
if (IsContextLost())
|
|
return nullptr;
|
|
|
|
if (!ValidateObject("getTransformFeedbackVarying: program", program))
|
|
return nullptr;
|
|
|
|
return program->GetTransformFeedbackVarying(index);
|
|
}
|
|
|
|
} // namespace mozilla
|