/* -*- 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 "WebGLExtensions.h" #include "GLContext.h" #include "mozilla/dom/WebGLRenderingContextBinding.h" #include "WebGLContext.h" #include "WebGLFormats.h" namespace mozilla { WebGLExtensionSRGB::WebGLExtensionSRGB(WebGLContext* webgl) : WebGLExtensionBase(webgl) { MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported."); gl::GLContext* gl = webgl->GL(); if (!gl->IsGLES()) { // Desktop OpenGL requires the following to be enabled in order to // support sRGB operations on framebuffers. gl->MakeCurrent(); gl->fEnable(LOCAL_GL_FRAMEBUFFER_SRGB_EXT); } auto& fua = webgl->mFormatUsage; RefPtr<gl::GLContext> gl_ = gl; // Bug 1201275 const auto fnAdd = [&fua, &gl_](webgl::EffectiveFormat effFormat, GLenum format, GLenum desktopUnpackFormat) { auto usage = fua->EditUsage(effFormat); usage->isFilterable = true; webgl::DriverUnpackInfo dui = {format, format, LOCAL_GL_UNSIGNED_BYTE}; const auto pi = dui.ToPacking(); if (!gl_->IsGLES()) dui.unpackFormat = desktopUnpackFormat; fua->AddTexUnpack(usage, pi, dui); fua->AllowUnsizedTexFormat(pi, usage); }; fnAdd(webgl::EffectiveFormat::SRGB8, LOCAL_GL_SRGB, LOCAL_GL_RGB); fnAdd(webgl::EffectiveFormat::SRGB8_ALPHA8, LOCAL_GL_SRGB_ALPHA, LOCAL_GL_RGBA); auto usage = fua->EditUsage(webgl::EffectiveFormat::SRGB8_ALPHA8); usage->SetRenderable(); fua->AllowRBFormat(LOCAL_GL_SRGB8_ALPHA8, usage); } WebGLExtensionSRGB::~WebGLExtensionSRGB() { } bool WebGLExtensionSRGB::IsSupported(const WebGLContext* webgl) { gl::GLContext* gl = webgl->GL(); return gl->IsSupported(gl::GLFeature::sRGB_framebuffer) && gl->IsSupported(gl::GLFeature::sRGB_texture); } IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionSRGB, EXT_sRGB) } // namespace mozilla