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/* -*- 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";
retval.setObjectOrNull(nullptr);
if (IsContextLost())
return;
if (target != LOCAL_GL_RENDERBUFFER) {
ErrorInvalidEnum("%s: `target` must be RENDERBUFFER, was: 0x%04x.", funcName,
target);
return;
}
// GLES 3.0.4 $4.4.4 p212:
// "An internal format is color-renderable if it is one of the formats from table 3.13
// noted as color-renderable or if it is unsized format RGBA or RGB."
GLenum sizedFormat;
switch (internalformat) {
case LOCAL_GL_RGB:
sizedFormat = LOCAL_GL_RGB8;
break;
case LOCAL_GL_RGBA:
sizedFormat = LOCAL_GL_RGBA8;
break;
default:
sizedFormat = internalformat;
break;
}
// In RenderbufferStorage, we allow DEPTH_STENCIL. Therefore, it is accepted for
// internalformat as well. Please ignore the conformance test fail for DEPTH_STENCIL.
const auto usage = mFormatUsage->GetRBUsage(sizedFormat);
if (!usage) {
ErrorInvalidEnum("%s: `internalformat` must be color-, depth-, or stencil-renderable, was: 0x%04x.",
funcName, internalformat);
return;
}
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
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