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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "WebGLSampler.h"
#include "GLContext.h"
namespace mozilla {
RefPtr<WebGLSampler> WebGL2Context::CreateSampler() {
const FuncScope funcScope(*this, "createSampler");
if (IsContextLost()) return nullptr;
return new WebGLSampler(this);
}
void WebGL2Context::BindSampler(GLuint unit, WebGLSampler* sampler) {
FuncScope funcScope(*this, "bindSampler");
if (IsContextLost()) return;
funcScope.mBindFailureGuard = true;
if (sampler && !ValidateObject("sampler", *sampler)) return;
if (unit >= mBoundSamplers.Length())
return ErrorInvalidValue("unit must be < %u", mBoundSamplers.Length());
////
gl->fBindSampler(unit, sampler ? sampler->mGLName : 0);
mBoundSamplers[unit] = sampler;
funcScope.mBindFailureGuard = false;
}
void WebGL2Context::SamplerParameteri(WebGLSampler& sampler, GLenum pname,
GLint param) {
const FuncScope funcScope(*this, "samplerParameteri");
if (IsContextLost()) return;
if (!ValidateObject("sampler", sampler)) return;
sampler.SamplerParameter(pname, FloatOrInt(param));
}
void WebGL2Context::SamplerParameterf(WebGLSampler& sampler, GLenum pname,
GLfloat param) {
const FuncScope funcScope(*this, "samplerParameterf");
if (IsContextLost()) return;
if (!ValidateObject("sampler", sampler)) return;
sampler.SamplerParameter(pname, FloatOrInt(param));
}
Maybe<double> WebGL2Context::GetSamplerParameter(const WebGLSampler& sampler,
GLenum pname) const {
const FuncScope funcScope(*this, "getSamplerParameter");
if (IsContextLost()) return {};
if (!ValidateObject("sampler", sampler)) return {};
////
const auto fnAsFloat = [&]() {
GLfloat param = 0;
gl->fGetSamplerParameterfv(sampler.mGLName, pname, ¶m);
return param;
};
switch (pname) {
case LOCAL_GL_TEXTURE_MIN_FILTER:
case LOCAL_GL_TEXTURE_MAG_FILTER:
case LOCAL_GL_TEXTURE_WRAP_S:
case LOCAL_GL_TEXTURE_WRAP_T:
case LOCAL_GL_TEXTURE_WRAP_R:
case LOCAL_GL_TEXTURE_COMPARE_MODE:
case LOCAL_GL_TEXTURE_COMPARE_FUNC: {
GLint param = 0;
gl->fGetSamplerParameteriv(sampler.mGLName, pname, ¶m);
return Some(param);
}
case LOCAL_GL_TEXTURE_MIN_LOD:
case LOCAL_GL_TEXTURE_MAX_LOD:
return Some(fnAsFloat());
case LOCAL_GL_TEXTURE_MAX_ANISOTROPY:
if (!IsExtensionEnabled(
WebGLExtensionID::EXT_texture_filter_anisotropic)) {
break;
}
return Some(fnAsFloat());
default:
break;
}
ErrorInvalidEnumInfo("pname", pname);
return {};
}
} // namespace mozilla
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