/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "GLContext.h"
#include "WebGLContextUtils.h"

namespace mozilla {

void
WebGL2Context::GetInternalformatParameter(JSContext* cx, GLenum target,
                                          GLenum internalformat, GLenum pname,
                                          JS::MutableHandleValue retval,
                                          ErrorResult& out_rv)
{
    const char funcName[] = "getInternalfomratParameter";
    if (IsContextLost())
        return;

    if (target != LOCAL_GL_RENDERBUFFER) {
        ErrorInvalidEnum("%s: `target` must be RENDERBUFFER, was: 0x%04x.", funcName,
                         target);
        return;
    }

    // GL_INVALID_ENUM is generated if internalformat is not color-, depth-, or
    // stencil-renderable.
    // TODO: When format table queries lands.

    if (pname != LOCAL_GL_SAMPLES) {
        ErrorInvalidEnumInfo("%s: `pname` must be SAMPLES, was 0x%04x.", funcName, pname);
        return;
    }

    GLint* samples = nullptr;
    GLint sampleCount = 0;
    gl->fGetInternalformativ(LOCAL_GL_RENDERBUFFER, internalformat,
                             LOCAL_GL_NUM_SAMPLE_COUNTS, 1, &sampleCount);
    if (sampleCount > 0) {
        samples = new GLint[sampleCount];
        gl->fGetInternalformativ(LOCAL_GL_RENDERBUFFER, internalformat, LOCAL_GL_SAMPLES,
                                 sampleCount, samples);
    }

    JSObject* obj = dom::Int32Array::Create(cx, this, sampleCount, samples);
    if (!obj) {
        out_rv = NS_ERROR_OUT_OF_MEMORY;
    }

    delete[] samples;

    retval.setObjectOrNull(obj);
}

void
WebGL2Context::RenderbufferStorageMultisample(GLenum target, GLsizei samples,
                                              GLenum internalFormat,
                                              GLsizei width, GLsizei height)
{
    const char funcName[] = "renderbufferStorageMultisample";
    if (IsContextLost())
        return;

    RenderbufferStorage_base(funcName, target, samples, internalFormat, width, height);
}

} // namespace mozilla