forked from mirrors/gecko-dev
4f57ad7f07
Passes deqp/functional/gles3/lifetime.html. Differential Revision: https://phabricator.services.mozilla.com/D8956
1731 lines
56 KiB
C++
1731 lines
56 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WebGLFramebuffer.h"
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// You know it's going to be fun when these two show up:
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#include <algorithm>
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#include <iterator>
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#include "GLContext.h"
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#include "GLScreenBuffer.h"
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#include "mozilla/dom/WebGLRenderingContextBinding.h"
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#include "nsPrintfCString.h"
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#include "WebGLContext.h"
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#include "WebGLContextUtils.h"
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#include "WebGLExtensions.h"
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#include "WebGLRenderbuffer.h"
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#include "WebGLTexture.h"
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namespace mozilla {
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static bool
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ShouldDeferAttachment(const WebGLContext* const webgl, const GLenum attachPoint)
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{
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if (webgl->IsWebGL2())
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return false;
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switch (attachPoint) {
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case LOCAL_GL_DEPTH_ATTACHMENT:
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case LOCAL_GL_STENCIL_ATTACHMENT:
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case LOCAL_GL_DEPTH_STENCIL_ATTACHMENT:
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return true;
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default:
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return false;
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}
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}
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WebGLFBAttachPoint::WebGLFBAttachPoint(const WebGLContext* const webgl,
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const GLenum attachmentPoint)
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: mAttachmentPoint(attachmentPoint)
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, mDeferAttachment(ShouldDeferAttachment(webgl, mAttachmentPoint))
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{ }
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WebGLFBAttachPoint::~WebGLFBAttachPoint()
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{
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MOZ_ASSERT(!mRenderbufferPtr);
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MOZ_ASSERT(!mTexturePtr);
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}
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bool
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WebGLFBAttachPoint::IsDeleteRequested() const
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{
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return Texture() ? Texture()->IsDeleteRequested()
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: Renderbuffer() ? Renderbuffer()->IsDeleteRequested()
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: false;
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}
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void
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WebGLFBAttachPoint::Clear()
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{
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mRenderbufferPtr = nullptr;
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mTexturePtr = nullptr;
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mTexImageTarget = 0;
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mTexImageLevel = 0;
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mTexImageLayer = 0;
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}
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void
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WebGLFBAttachPoint::SetTexImage(gl::GLContext* const gl, WebGLTexture* const tex,
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TexImageTarget target, GLint level, GLint layer)
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{
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Clear();
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mTexturePtr = tex;
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mTexImageTarget = target;
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mTexImageLevel = level;
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mTexImageLayer = layer;
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if (!mDeferAttachment) {
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DoAttachment(gl);
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}
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}
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void
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WebGLFBAttachPoint::SetRenderbuffer(gl::GLContext* const gl, WebGLRenderbuffer* const rb)
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{
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Clear();
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mRenderbufferPtr = rb;
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if (!mDeferAttachment) {
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DoAttachment(gl);
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}
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}
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const webgl::ImageInfo*
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WebGLFBAttachPoint::GetImageInfo() const
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{
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if (mTexturePtr)
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return &mTexturePtr->ImageInfoAt(mTexImageTarget, mTexImageLevel);
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if (mRenderbufferPtr)
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return &mRenderbufferPtr->ImageInfo();
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return nullptr;
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}
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bool
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WebGLFBAttachPoint::IsComplete(WebGLContext* webgl, nsCString* const out_info) const
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{
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MOZ_ASSERT(HasAttachment());
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const auto fnWriteErrorInfo = [&](const char* const text) {
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WebGLContext::EnumName(mAttachmentPoint, out_info);
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out_info->AppendASCII(text);
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};
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const auto& imageInfo = *GetImageInfo();
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if (!imageInfo.mWidth || !imageInfo.mHeight) {
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fnWriteErrorInfo("Attachment has no width or height.");
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return false;
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}
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MOZ_ASSERT(imageInfo.IsDefined());
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const auto& tex = Texture();
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if (tex) {
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// ES 3.0 spec, pg 213 has giant blocks of text that bake down to requiring that
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// attached tex images are within the valid mip-levels of the texture.
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// While it draws distinction to only test non-immutable textures, that's because
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// immutable textures are *always* texture-complete.
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// We need to check immutable textures though, because checking completeness is
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// also when we zero invalidated/no-data tex images.
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const bool complete = [&]() {
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const auto texCompleteness = tex->CalcCompletenessInfo();
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if (!texCompleteness) // OOM
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return false;
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if (!texCompleteness->levels)
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return false;
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const auto baseLevel = tex->BaseMipmapLevel();
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const auto maxLevel = baseLevel + texCompleteness->levels - 1;
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return baseLevel <= mTexImageLevel && mTexImageLevel <= maxLevel;
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}();
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if (!complete) {
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fnWriteErrorInfo("Attached texture is not texture-complete.");
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return false;
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}
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}
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const auto& formatUsage = imageInfo.mFormat;
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if (!formatUsage->IsRenderable()) {
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const auto info = nsPrintfCString("Attachment has an effective format of %s,"
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" which is not renderable.",
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formatUsage->format->name);
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fnWriteErrorInfo(info.BeginReading());
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return false;
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}
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const auto format = formatUsage->format;
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bool hasRequiredBits;
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switch (mAttachmentPoint) {
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case LOCAL_GL_DEPTH_ATTACHMENT:
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hasRequiredBits = format->d;
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break;
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case LOCAL_GL_STENCIL_ATTACHMENT:
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hasRequiredBits = format->s;
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break;
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case LOCAL_GL_DEPTH_STENCIL_ATTACHMENT:
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MOZ_ASSERT(!webgl->IsWebGL2());
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hasRequiredBits = (format->d && format->s);
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break;
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default:
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MOZ_ASSERT(mAttachmentPoint >= LOCAL_GL_COLOR_ATTACHMENT0);
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hasRequiredBits = format->IsColorFormat();
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break;
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}
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if (!hasRequiredBits) {
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fnWriteErrorInfo("Attachment's format is missing required color/depth/stencil"
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" bits.");
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return false;
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}
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if (!webgl->IsWebGL2()) {
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bool hasSurplusPlanes = false;
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switch (mAttachmentPoint) {
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case LOCAL_GL_DEPTH_ATTACHMENT:
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hasSurplusPlanes = format->s;
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break;
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case LOCAL_GL_STENCIL_ATTACHMENT:
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hasSurplusPlanes = format->d;
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break;
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}
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if (hasSurplusPlanes) {
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fnWriteErrorInfo("Attachment has depth or stencil bits when it shouldn't.");
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return false;
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}
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}
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return true;
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}
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void
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WebGLFBAttachPoint::DoAttachment(gl::GLContext* const gl) const
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{
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if (Renderbuffer()) {
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Renderbuffer()->DoFramebufferRenderbuffer(mAttachmentPoint);
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return;
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}
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if (!Texture()) {
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MOZ_ASSERT(mAttachmentPoint != LOCAL_GL_DEPTH_STENCIL_ATTACHMENT);
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// WebGL 2 doesn't have a real attachment for this, and WebGL 1 is defered and
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// only DoAttachment if HasAttachment.
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gl->fFramebufferRenderbuffer(LOCAL_GL_FRAMEBUFFER, mAttachmentPoint,
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LOCAL_GL_RENDERBUFFER, 0);
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return;
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}
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const auto& texName = Texture()->mGLName;
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switch (mTexImageTarget.get()) {
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case LOCAL_GL_TEXTURE_2D:
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case LOCAL_GL_TEXTURE_CUBE_MAP_POSITIVE_X:
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case LOCAL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
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case LOCAL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
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case LOCAL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
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case LOCAL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
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case LOCAL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
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if (mAttachmentPoint == LOCAL_GL_DEPTH_STENCIL_ATTACHMENT) {
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gl->fFramebufferTexture2D(LOCAL_GL_FRAMEBUFFER, LOCAL_GL_DEPTH_ATTACHMENT,
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mTexImageTarget.get(), texName, mTexImageLevel);
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gl->fFramebufferTexture2D(LOCAL_GL_FRAMEBUFFER, LOCAL_GL_STENCIL_ATTACHMENT,
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mTexImageTarget.get(), texName, mTexImageLevel);
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} else {
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gl->fFramebufferTexture2D(LOCAL_GL_FRAMEBUFFER, mAttachmentPoint,
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mTexImageTarget.get(), texName, mTexImageLevel);
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}
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break;
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case LOCAL_GL_TEXTURE_2D_ARRAY:
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case LOCAL_GL_TEXTURE_3D:
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gl->fFramebufferTextureLayer(LOCAL_GL_FRAMEBUFFER, mAttachmentPoint, texName,
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mTexImageLevel, mTexImageLayer);
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break;
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}
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}
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JS::Value
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WebGLFBAttachPoint::GetParameter(WebGLContext* webgl, JSContext* cx,
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GLenum target, GLenum attachment, GLenum pname,
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ErrorResult* const out_error) const
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{
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if (!HasAttachment()) {
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// Divergent between GLES 3 and 2.
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// GLES 2.0.25 p127:
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// "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then querying any
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// other pname will generate INVALID_ENUM."
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// GLES 3.0.4 p240:
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// "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, no framebuffer is
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// bound to target. In this case querying pname
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// FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero, and all other queries
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// will generate an INVALID_OPERATION error."
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switch (pname) {
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
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return JS::Int32Value(LOCAL_GL_NONE);
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
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if (webgl->IsWebGL2())
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return JS::NullValue();
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break;
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default:
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break;
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}
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nsCString attachmentName;
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WebGLContext::EnumName(attachment, &attachmentName);
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if (webgl->IsWebGL2()) {
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webgl->ErrorInvalidOperation("No attachment at %s.",
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attachmentName.BeginReading());
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} else {
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webgl->ErrorInvalidEnum("No attachment at %s.",
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attachmentName.BeginReading());
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}
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return JS::NullValue();
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}
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bool isPNameValid = false;
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switch (pname) {
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
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return JS::Int32Value(mTexturePtr ? LOCAL_GL_TEXTURE
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: LOCAL_GL_RENDERBUFFER);
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
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return (mTexturePtr ? webgl->WebGLObjectAsJSValue(cx, mTexturePtr.get(),
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*out_error)
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: webgl->WebGLObjectAsJSValue(cx, mRenderbufferPtr.get(),
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*out_error));
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//////
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL:
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if (mTexturePtr)
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return JS::Int32Value(MipLevel());
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break;
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE:
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if (mTexturePtr) {
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GLenum face = 0;
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if (mTexturePtr->Target() == LOCAL_GL_TEXTURE_CUBE_MAP) {
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face = ImageTarget().get();
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}
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return JS::Int32Value(face);
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}
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break;
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//////
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER:
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if (webgl->IsWebGL2() && mTexturePtr) {
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int32_t layer = 0;
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if (ImageTarget() == LOCAL_GL_TEXTURE_2D_ARRAY ||
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ImageTarget() == LOCAL_GL_TEXTURE_3D)
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{
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layer = Layer();
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}
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return JS::Int32Value(layer);
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}
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break;
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//////
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
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isPNameValid = webgl->IsWebGL2();
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break;
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
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isPNameValid = (webgl->IsWebGL2() ||
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webgl->IsExtensionEnabled(WebGLExtensionID::EXT_sRGB));
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break;
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}
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if (!isPNameValid) {
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webgl->ErrorInvalidEnum("Invalid pname: 0x%04x", pname);
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return JS::NullValue();
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}
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const auto& imageInfo = *GetImageInfo();
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const auto& usage = imageInfo.mFormat;
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if (!usage) {
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if (pname == LOCAL_GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING)
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return JS::NumberValue(LOCAL_GL_LINEAR);
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return JS::NullValue();
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}
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auto format = usage->format;
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GLint ret = 0;
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switch (pname) {
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
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ret = format->r;
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break;
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
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ret = format->g;
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break;
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
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ret = format->b;
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break;
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
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ret = format->a;
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break;
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
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ret = format->d;
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break;
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
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ret = format->s;
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break;
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
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ret = (format->isSRGB ? LOCAL_GL_SRGB
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: LOCAL_GL_LINEAR);
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break;
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case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
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MOZ_ASSERT(attachment != LOCAL_GL_DEPTH_STENCIL_ATTACHMENT);
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if (format->unsizedFormat == webgl::UnsizedFormat::DEPTH_STENCIL) {
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MOZ_ASSERT(attachment == LOCAL_GL_DEPTH_ATTACHMENT ||
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attachment == LOCAL_GL_STENCIL_ATTACHMENT);
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if (attachment == LOCAL_GL_DEPTH_ATTACHMENT) {
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switch (format->effectiveFormat) {
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case webgl::EffectiveFormat::DEPTH24_STENCIL8:
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format = webgl::GetFormat(webgl::EffectiveFormat::DEPTH_COMPONENT24);
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break;
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case webgl::EffectiveFormat::DEPTH32F_STENCIL8:
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format = webgl::GetFormat(webgl::EffectiveFormat::DEPTH_COMPONENT32F);
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break;
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default:
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MOZ_ASSERT(false, "no matched DS format");
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break;
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}
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} else if (attachment == LOCAL_GL_STENCIL_ATTACHMENT) {
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switch (format->effectiveFormat) {
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case webgl::EffectiveFormat::DEPTH24_STENCIL8:
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case webgl::EffectiveFormat::DEPTH32F_STENCIL8:
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format = webgl::GetFormat(webgl::EffectiveFormat::STENCIL_INDEX8);
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break;
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default:
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MOZ_ASSERT(false, "no matched DS format");
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break;
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}
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}
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}
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switch (format->componentType) {
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case webgl::ComponentType::Int:
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ret = LOCAL_GL_INT;
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break;
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case webgl::ComponentType::UInt:
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ret = LOCAL_GL_UNSIGNED_INT;
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break;
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case webgl::ComponentType::NormInt:
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ret = LOCAL_GL_SIGNED_NORMALIZED;
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break;
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case webgl::ComponentType::NormUInt:
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ret = LOCAL_GL_UNSIGNED_NORMALIZED;
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break;
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case webgl::ComponentType::Float:
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ret = LOCAL_GL_FLOAT;
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break;
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}
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break;
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default:
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MOZ_ASSERT(false, "Missing case.");
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break;
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}
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return JS::Int32Value(ret);
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}
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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// WebGLFramebuffer
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WebGLFramebuffer::WebGLFramebuffer(WebGLContext* webgl, GLuint fbo)
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: WebGLRefCountedObject(webgl)
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, mGLName(fbo)
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, mDepthAttachment(webgl, LOCAL_GL_DEPTH_ATTACHMENT)
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, mStencilAttachment(webgl, LOCAL_GL_STENCIL_ATTACHMENT)
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, mDepthStencilAttachment(webgl, LOCAL_GL_DEPTH_STENCIL_ATTACHMENT)
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{
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mContext->mFramebuffers.insertBack(this);
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mAttachments.push_back(&mDepthAttachment);
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mAttachments.push_back(&mStencilAttachment);
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if (!webgl->IsWebGL2()) {
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// Only WebGL1 has a separate depth+stencil attachment point.
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mAttachments.push_back(&mDepthStencilAttachment);
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}
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size_t i = 0;
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for (auto& cur : mColorAttachments) {
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new (&cur) WebGLFBAttachPoint(webgl, LOCAL_GL_COLOR_ATTACHMENT0 + i);
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i++;
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mAttachments.push_back(&cur);
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}
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mColorDrawBuffers.push_back(&mColorAttachments[0]);
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mColorReadBuffer = &mColorAttachments[0];
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}
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void
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WebGLFramebuffer::Delete()
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{
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InvalidateCaches();
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mDepthAttachment.Clear();
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mStencilAttachment.Clear();
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mDepthStencilAttachment.Clear();
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for (auto& cur : mColorAttachments) {
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cur.Clear();
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}
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mContext->gl->fDeleteFramebuffers(1, &mGLName);
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LinkedListElement<WebGLFramebuffer>::removeFrom(mContext->mFramebuffers);
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}
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////
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Maybe<WebGLFBAttachPoint*>
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WebGLFramebuffer::GetColorAttachPoint(GLenum attachPoint)
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{
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if (attachPoint == LOCAL_GL_NONE)
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return Some<WebGLFBAttachPoint*>(nullptr);
|
|
|
|
if (attachPoint < LOCAL_GL_COLOR_ATTACHMENT0)
|
|
return Nothing();
|
|
|
|
const size_t colorId = attachPoint - LOCAL_GL_COLOR_ATTACHMENT0;
|
|
|
|
MOZ_ASSERT(mContext->mGLMaxColorAttachments <= kMaxColorAttachments);
|
|
if (colorId >= mContext->mGLMaxColorAttachments)
|
|
return Nothing();
|
|
|
|
return Some(&mColorAttachments[colorId]);
|
|
}
|
|
|
|
Maybe<WebGLFBAttachPoint*>
|
|
WebGLFramebuffer::GetAttachPoint(GLenum attachPoint)
|
|
{
|
|
switch (attachPoint) {
|
|
case LOCAL_GL_DEPTH_STENCIL_ATTACHMENT:
|
|
return Some(&mDepthStencilAttachment);
|
|
|
|
case LOCAL_GL_DEPTH_ATTACHMENT:
|
|
return Some(&mDepthAttachment);
|
|
|
|
case LOCAL_GL_STENCIL_ATTACHMENT:
|
|
return Some(&mStencilAttachment);
|
|
|
|
default:
|
|
return GetColorAttachPoint(attachPoint);
|
|
}
|
|
}
|
|
|
|
void
|
|
WebGLFramebuffer::DetachTexture(const WebGLTexture* tex)
|
|
{
|
|
for (const auto& attach : mAttachments) {
|
|
if (attach->Texture() == tex) {
|
|
attach->Clear();
|
|
}
|
|
}
|
|
InvalidateCaches();
|
|
}
|
|
|
|
void
|
|
WebGLFramebuffer::DetachRenderbuffer(const WebGLRenderbuffer* rb)
|
|
{
|
|
for (const auto& attach : mAttachments) {
|
|
if (attach->Renderbuffer() == rb) {
|
|
attach->Clear();
|
|
}
|
|
}
|
|
InvalidateCaches();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Completeness
|
|
|
|
bool
|
|
WebGLFramebuffer::HasDuplicateAttachments() const
|
|
{
|
|
std::set<WebGLFBAttachPoint::Ordered> uniqueAttachSet;
|
|
|
|
for (const auto& attach : mColorAttachments) {
|
|
if (!attach.HasAttachment())
|
|
continue;
|
|
|
|
const WebGLFBAttachPoint::Ordered ordered(attach);
|
|
|
|
const bool didInsert = uniqueAttachSet.insert(ordered).second;
|
|
if (!didInsert)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
WebGLFramebuffer::HasDefinedAttachments() const
|
|
{
|
|
bool hasAttachments = false;
|
|
for (const auto& attach : mAttachments) {
|
|
hasAttachments |= attach->HasAttachment();
|
|
}
|
|
return hasAttachments;
|
|
}
|
|
|
|
bool
|
|
WebGLFramebuffer::HasIncompleteAttachments(nsCString* const out_info) const
|
|
{
|
|
bool hasIncomplete = false;
|
|
for (const auto& cur : mAttachments) {
|
|
if (!cur->HasAttachment())
|
|
continue; // Not defined, so can't count as incomplete.
|
|
|
|
hasIncomplete |= !cur->IsComplete(mContext, out_info);
|
|
}
|
|
return hasIncomplete;
|
|
}
|
|
|
|
bool
|
|
WebGLFramebuffer::AllImageRectsMatch() const
|
|
{
|
|
MOZ_ASSERT(HasDefinedAttachments());
|
|
DebugOnly<nsCString> fbStatusInfo;
|
|
MOZ_ASSERT(!HasIncompleteAttachments(&fbStatusInfo));
|
|
|
|
bool needsInit = true;
|
|
uint32_t width = 0;
|
|
uint32_t height = 0;
|
|
|
|
bool hasMismatch = false;
|
|
for (const auto& attach : mAttachments) {
|
|
const auto& imageInfo = attach->GetImageInfo();
|
|
if (!imageInfo)
|
|
continue;
|
|
|
|
const auto& curWidth = imageInfo->mWidth;
|
|
const auto& curHeight = imageInfo->mHeight;
|
|
|
|
if (needsInit) {
|
|
needsInit = false;
|
|
width = curWidth;
|
|
height = curHeight;
|
|
continue;
|
|
}
|
|
|
|
hasMismatch |= (curWidth != width ||
|
|
curHeight != height);
|
|
}
|
|
return !hasMismatch;
|
|
}
|
|
|
|
bool
|
|
WebGLFramebuffer::AllImageSamplesMatch() const
|
|
{
|
|
MOZ_ASSERT(HasDefinedAttachments());
|
|
DebugOnly<nsCString> fbStatusInfo;
|
|
MOZ_ASSERT(!HasIncompleteAttachments(&fbStatusInfo));
|
|
|
|
bool needsInit = true;
|
|
uint32_t samples = 0;
|
|
|
|
bool hasMismatch = false;
|
|
for (const auto& attach : mAttachments) {
|
|
const auto& imageInfo = attach->GetImageInfo();
|
|
if (!imageInfo)
|
|
continue;
|
|
|
|
const auto& curSamples = imageInfo->mSamples;
|
|
|
|
if (needsInit) {
|
|
needsInit = false;
|
|
samples = curSamples;
|
|
continue;
|
|
}
|
|
|
|
hasMismatch |= (curSamples != samples);
|
|
};
|
|
return !hasMismatch;
|
|
}
|
|
|
|
FBStatus
|
|
WebGLFramebuffer::PrecheckFramebufferStatus(nsCString* const out_info) const
|
|
{
|
|
MOZ_ASSERT(mContext->mBoundDrawFramebuffer == this ||
|
|
mContext->mBoundReadFramebuffer == this);
|
|
|
|
if (!HasDefinedAttachments())
|
|
return LOCAL_GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT; // No attachments
|
|
|
|
if (HasIncompleteAttachments(out_info))
|
|
return LOCAL_GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT;
|
|
|
|
if (!AllImageRectsMatch())
|
|
return LOCAL_GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS; // Inconsistent sizes
|
|
|
|
if (!AllImageSamplesMatch())
|
|
return LOCAL_GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE; // Inconsistent samples
|
|
|
|
if (HasDuplicateAttachments())
|
|
return LOCAL_GL_FRAMEBUFFER_UNSUPPORTED;
|
|
|
|
if (mContext->IsWebGL2()) {
|
|
MOZ_ASSERT(!mDepthStencilAttachment.HasAttachment());
|
|
if (mDepthAttachment.HasAttachment() && mStencilAttachment.HasAttachment()) {
|
|
if (!mDepthAttachment.IsEquivalentForFeedback(mStencilAttachment))
|
|
return LOCAL_GL_FRAMEBUFFER_UNSUPPORTED;
|
|
}
|
|
} else {
|
|
const auto depthOrStencilCount = int(mDepthAttachment.HasAttachment()) +
|
|
int(mStencilAttachment.HasAttachment()) +
|
|
int(mDepthStencilAttachment.HasAttachment());
|
|
if (depthOrStencilCount > 1)
|
|
return LOCAL_GL_FRAMEBUFFER_UNSUPPORTED;
|
|
}
|
|
|
|
return LOCAL_GL_FRAMEBUFFER_COMPLETE;
|
|
}
|
|
|
|
////////////////////////////////////////
|
|
// Validation
|
|
|
|
bool
|
|
WebGLFramebuffer::ValidateAndInitAttachments() const
|
|
{
|
|
MOZ_ASSERT(mContext->mBoundDrawFramebuffer == this ||
|
|
mContext->mBoundReadFramebuffer == this);
|
|
|
|
const auto fbStatus = CheckFramebufferStatus();
|
|
if (fbStatus == LOCAL_GL_FRAMEBUFFER_COMPLETE)
|
|
return true;
|
|
|
|
mContext->ErrorInvalidFramebufferOperation("Framebuffer must be complete.");
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
WebGLFramebuffer::ValidateClearBufferType(GLenum buffer,
|
|
uint32_t drawBuffer, GLenum funcType) const
|
|
{
|
|
if (buffer != LOCAL_GL_COLOR)
|
|
return true;
|
|
|
|
const auto& attach = mColorAttachments[drawBuffer];
|
|
const auto& imageInfo = attach.GetImageInfo();
|
|
if (!imageInfo)
|
|
return true;
|
|
|
|
if (!count(mColorDrawBuffers.begin(), mColorDrawBuffers.end(), &attach))
|
|
return true; // DRAW_BUFFERi set to NONE.
|
|
|
|
GLenum attachType;
|
|
switch (imageInfo->mFormat->format->componentType) {
|
|
case webgl::ComponentType::Int:
|
|
attachType = LOCAL_GL_INT;
|
|
break;
|
|
case webgl::ComponentType::UInt:
|
|
attachType = LOCAL_GL_UNSIGNED_INT;
|
|
break;
|
|
default:
|
|
attachType = LOCAL_GL_FLOAT;
|
|
break;
|
|
}
|
|
|
|
if (attachType != funcType) {
|
|
mContext->ErrorInvalidOperation("This attachment is of type 0x%04x, but"
|
|
" this function is of type 0x%04x.",
|
|
attachType, funcType);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
WebGLFramebuffer::ValidateForColorRead(const webgl::FormatUsageInfo** const out_format,
|
|
uint32_t* const out_width,
|
|
uint32_t* const out_height) const
|
|
{
|
|
if (!mColorReadBuffer) {
|
|
mContext->ErrorInvalidOperation("READ_BUFFER must not be NONE.");
|
|
return false;
|
|
}
|
|
|
|
const auto& imageInfo = mColorReadBuffer->GetImageInfo();
|
|
if (!imageInfo) {
|
|
mContext->ErrorInvalidOperation("The READ_BUFFER attachment is not defined.");
|
|
return false;
|
|
}
|
|
|
|
if (imageInfo->mSamples) {
|
|
mContext->ErrorInvalidOperation("The READ_BUFFER attachment is multisampled.");
|
|
return false;
|
|
}
|
|
|
|
*out_format = imageInfo->mFormat;
|
|
*out_width = imageInfo->mWidth;
|
|
*out_height = imageInfo->mHeight;
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Resolution and caching
|
|
|
|
void
|
|
WebGLFramebuffer::DoDeferredAttachments() const
|
|
{
|
|
if (mContext->IsWebGL2())
|
|
return;
|
|
|
|
const auto& gl = mContext->gl;
|
|
gl->fFramebufferRenderbuffer(LOCAL_GL_FRAMEBUFFER, LOCAL_GL_DEPTH_ATTACHMENT,
|
|
LOCAL_GL_RENDERBUFFER, 0);
|
|
gl->fFramebufferRenderbuffer(LOCAL_GL_FRAMEBUFFER, LOCAL_GL_STENCIL_ATTACHMENT,
|
|
LOCAL_GL_RENDERBUFFER, 0);
|
|
|
|
const auto fn = [&](const WebGLFBAttachPoint& attach) {
|
|
MOZ_ASSERT(attach.mDeferAttachment);
|
|
if (attach.HasAttachment()) {
|
|
attach.DoAttachment(gl);
|
|
}
|
|
};
|
|
// Only one of these will have an attachment.
|
|
fn(mDepthAttachment);
|
|
fn(mStencilAttachment);
|
|
fn(mDepthStencilAttachment);
|
|
}
|
|
|
|
void
|
|
WebGLFramebuffer::ResolveAttachmentData() const
|
|
{
|
|
// GLES 3.0.5 p188:
|
|
// The result of clearing integer color buffers with `Clear` is undefined.
|
|
|
|
// Two different approaches:
|
|
// On WebGL 2, we have glClearBuffer, and *must* use it for integer buffers, so let's
|
|
// just use it for all the buffers.
|
|
// One WebGL 1, we might not have glClearBuffer,
|
|
|
|
// WebGL 1 is easier, because we can just call glClear, possibly with glDrawBuffers.
|
|
|
|
const auto& gl = mContext->gl;
|
|
|
|
const webgl::ScopedPrepForResourceClear scopedPrep(*mContext);
|
|
|
|
if (mContext->IsWebGL2()) {
|
|
const uint32_t uiZeros[4] = {};
|
|
const int32_t iZeros[4] = {};
|
|
const float fZeros[4] = {};
|
|
const float fOne[] = {1.0f};
|
|
|
|
for (const auto& cur : mAttachments) {
|
|
const auto& imageInfo = cur->GetImageInfo();
|
|
if (!imageInfo || imageInfo->mHasData)
|
|
continue; // Nothing attached, or already has data.
|
|
|
|
const auto fnClearBuffer = [&]() {
|
|
const auto& format = imageInfo->mFormat->format;
|
|
MOZ_ASSERT(format->estimatedBytesPerPixel <= sizeof(uiZeros));
|
|
MOZ_ASSERT(format->estimatedBytesPerPixel <= sizeof(iZeros));
|
|
MOZ_ASSERT(format->estimatedBytesPerPixel <= sizeof(fZeros));
|
|
|
|
switch (cur->mAttachmentPoint) {
|
|
case LOCAL_GL_DEPTH_ATTACHMENT:
|
|
gl->fClearBufferfv(LOCAL_GL_DEPTH, 0, fOne);
|
|
break;
|
|
case LOCAL_GL_STENCIL_ATTACHMENT:
|
|
gl->fClearBufferiv(LOCAL_GL_STENCIL, 0, iZeros);
|
|
break;
|
|
default:
|
|
MOZ_ASSERT(cur->mAttachmentPoint != LOCAL_GL_DEPTH_STENCIL_ATTACHMENT);
|
|
const uint32_t drawBuffer = cur->mAttachmentPoint - LOCAL_GL_COLOR_ATTACHMENT0;
|
|
MOZ_ASSERT(drawBuffer <= 100);
|
|
switch (format->componentType) {
|
|
case webgl::ComponentType::Int:
|
|
gl->fClearBufferiv(LOCAL_GL_COLOR, drawBuffer, iZeros);
|
|
break;
|
|
case webgl::ComponentType::UInt:
|
|
gl->fClearBufferuiv(LOCAL_GL_COLOR, drawBuffer, uiZeros);
|
|
break;
|
|
default:
|
|
gl->fClearBufferfv(LOCAL_GL_COLOR, drawBuffer, fZeros);
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
if (imageInfo->mDepth > 1) {
|
|
// Todo: Use glClearTexImage.
|
|
const auto& tex = cur->Texture();
|
|
for (uint32_t z = 0; z < imageInfo->mDepth; z++) {
|
|
gl->fFramebufferTextureLayer(LOCAL_GL_FRAMEBUFFER, cur->mAttachmentPoint,
|
|
tex->mGLName, cur->MipLevel(), z);
|
|
fnClearBuffer();
|
|
}
|
|
|
|
gl->fFramebufferTextureLayer(LOCAL_GL_FRAMEBUFFER, cur->mAttachmentPoint,
|
|
tex->mGLName, cur->MipLevel(), cur->Layer());
|
|
} else {
|
|
fnClearBuffer();
|
|
}
|
|
imageInfo->mHasData = true;
|
|
}
|
|
return;
|
|
}
|
|
|
|
uint32_t clearBits = 0;
|
|
std::vector<GLenum> drawBufferForClear;
|
|
|
|
const auto fnGather = [&](const WebGLFBAttachPoint& attach,
|
|
const uint32_t attachClearBits)
|
|
{
|
|
const auto& imageInfo = attach.GetImageInfo();
|
|
if (!imageInfo || imageInfo->mHasData)
|
|
return false;
|
|
|
|
clearBits |= attachClearBits;
|
|
imageInfo->mHasData = true; // Just mark it now.
|
|
return true;
|
|
};
|
|
|
|
//////
|
|
|
|
for (const auto& cur : mColorAttachments) {
|
|
if (fnGather(cur, LOCAL_GL_COLOR_BUFFER_BIT)) {
|
|
const uint32_t id = cur.mAttachmentPoint - LOCAL_GL_COLOR_ATTACHMENT0;
|
|
MOZ_ASSERT(id <= 100);
|
|
drawBufferForClear.resize(id + 1); // Pads with zeros!
|
|
drawBufferForClear[id] = cur.mAttachmentPoint;
|
|
}
|
|
}
|
|
|
|
(void)fnGather(mDepthAttachment, LOCAL_GL_DEPTH_BUFFER_BIT);
|
|
(void)fnGather(mStencilAttachment, LOCAL_GL_STENCIL_BUFFER_BIT);
|
|
(void)fnGather(mDepthStencilAttachment, LOCAL_GL_DEPTH_BUFFER_BIT |
|
|
LOCAL_GL_STENCIL_BUFFER_BIT);
|
|
|
|
//////
|
|
|
|
if (!clearBits)
|
|
return;
|
|
|
|
if (gl->IsSupported(gl::GLFeature::draw_buffers)) {
|
|
gl->fDrawBuffers(drawBufferForClear.size(), drawBufferForClear.data());
|
|
}
|
|
|
|
gl->fClear(clearBits);
|
|
|
|
RefreshDrawBuffers();
|
|
}
|
|
|
|
WebGLFramebuffer::CompletenessInfo::~CompletenessInfo()
|
|
{
|
|
const auto& fb = this->fb;
|
|
const auto& webgl = fb.mContext;
|
|
fb.mNumFBStatusInvals++;
|
|
if (fb.mNumFBStatusInvals > webgl->mMaxAcceptableFBStatusInvals) {
|
|
webgl->GeneratePerfWarning("FB was invalidated after being complete %u"
|
|
" times.",
|
|
uint32_t(fb.mNumFBStatusInvals));
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Entrypoints
|
|
|
|
FBStatus
|
|
WebGLFramebuffer::CheckFramebufferStatus() const
|
|
{
|
|
if (mCompletenessInfo)
|
|
return LOCAL_GL_FRAMEBUFFER_COMPLETE;
|
|
|
|
// Ok, let's try to resolve it!
|
|
|
|
nsCString statusInfo;
|
|
FBStatus ret = PrecheckFramebufferStatus(&statusInfo);
|
|
do {
|
|
if (ret != LOCAL_GL_FRAMEBUFFER_COMPLETE)
|
|
break;
|
|
|
|
// Looks good on our end. Let's ask the driver.
|
|
gl::GLContext* const gl = mContext->gl;
|
|
|
|
const ScopedFBRebinder autoFB(mContext);
|
|
gl->fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, mGLName);
|
|
|
|
////
|
|
|
|
DoDeferredAttachments();
|
|
RefreshDrawBuffers();
|
|
RefreshReadBuffer();
|
|
|
|
ret = gl->fCheckFramebufferStatus(LOCAL_GL_FRAMEBUFFER);
|
|
|
|
////
|
|
|
|
if (ret != LOCAL_GL_FRAMEBUFFER_COMPLETE) {
|
|
const nsPrintfCString text("Bad status according to the driver: 0x%04x",
|
|
ret.get());
|
|
statusInfo = text;
|
|
break;
|
|
}
|
|
|
|
ResolveAttachmentData();
|
|
|
|
// Sweet, let's cache that.
|
|
auto info = CompletenessInfo { *this, UINT32_MAX, UINT32_MAX };
|
|
mCompletenessInfo.ResetInvalidators({});
|
|
mCompletenessInfo.AddInvalidator(*this);
|
|
|
|
for (const auto& cur : mAttachments) {
|
|
const auto& tex = cur->Texture();
|
|
const auto& rb = cur->Renderbuffer();
|
|
if (tex) {
|
|
mCompletenessInfo.AddInvalidator(*tex);
|
|
info.texAttachments.push_back(cur);
|
|
} else if (rb) {
|
|
mCompletenessInfo.AddInvalidator(*rb);
|
|
} else {
|
|
continue;
|
|
}
|
|
const auto& imageInfo = cur->GetImageInfo();
|
|
MOZ_ASSERT(imageInfo);
|
|
info.width = std::min(info.width, imageInfo->mWidth);
|
|
info.height = std::min(info.height, imageInfo->mHeight);
|
|
}
|
|
mCompletenessInfo = Some(std::move(info));
|
|
return LOCAL_GL_FRAMEBUFFER_COMPLETE;
|
|
} while (false);
|
|
|
|
MOZ_ASSERT(ret != LOCAL_GL_FRAMEBUFFER_COMPLETE);
|
|
mContext->GenerateWarning("Framebuffer not complete. (status: 0x%04x) %s",
|
|
ret.get(), statusInfo.BeginReading());
|
|
return ret;
|
|
}
|
|
|
|
////
|
|
|
|
void
|
|
WebGLFramebuffer::RefreshDrawBuffers() const
|
|
{
|
|
const auto& gl = mContext->gl;
|
|
if (!gl->IsSupported(gl::GLFeature::draw_buffers))
|
|
return;
|
|
|
|
// Prior to GL4.1, having a no-image FB attachment that's selected by DrawBuffers
|
|
// yields a framebuffer status of FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER.
|
|
// We could workaround this only on affected versions, but it's easier be
|
|
// unconditional.
|
|
std::vector<GLenum> driverBuffers(mContext->mGLMaxDrawBuffers, LOCAL_GL_NONE);
|
|
for (const auto& attach : mColorDrawBuffers) {
|
|
if (attach->HasAttachment()) {
|
|
const uint32_t index = attach->mAttachmentPoint - LOCAL_GL_COLOR_ATTACHMENT0;
|
|
driverBuffers[index] = attach->mAttachmentPoint;
|
|
}
|
|
}
|
|
|
|
gl->fDrawBuffers(driverBuffers.size(), driverBuffers.data());
|
|
}
|
|
|
|
void
|
|
WebGLFramebuffer::RefreshReadBuffer() const
|
|
{
|
|
const auto& gl = mContext->gl;
|
|
if (!gl->IsSupported(gl::GLFeature::read_buffer))
|
|
return;
|
|
|
|
// Prior to GL4.1, having a no-image FB attachment that's selected by ReadBuffer
|
|
// yields a framebuffer status of FRAMEBUFFER_INCOMPLETE_READ_BUFFER.
|
|
// We could workaround this only on affected versions, but it's easier be
|
|
// unconditional.
|
|
GLenum driverBuffer = LOCAL_GL_NONE;
|
|
if (mColorReadBuffer && mColorReadBuffer->HasAttachment()) {
|
|
driverBuffer = mColorReadBuffer->mAttachmentPoint;
|
|
}
|
|
|
|
gl->fReadBuffer(driverBuffer);
|
|
}
|
|
|
|
////
|
|
|
|
void
|
|
WebGLFramebuffer::DrawBuffers(const dom::Sequence<GLenum>& buffers)
|
|
{
|
|
if (buffers.Length() > mContext->mGLMaxDrawBuffers) {
|
|
// "An INVALID_VALUE error is generated if `n` is greater than MAX_DRAW_BUFFERS."
|
|
mContext->ErrorInvalidValue("`buffers` must have a length <="
|
|
" MAX_DRAW_BUFFERS.");
|
|
return;
|
|
}
|
|
|
|
std::vector<const WebGLFBAttachPoint*> newColorDrawBuffers;
|
|
newColorDrawBuffers.reserve(buffers.Length());
|
|
|
|
for (size_t i = 0; i < buffers.Length(); i++) {
|
|
// "If the GL is bound to a draw framebuffer object, the `i`th buffer listed in
|
|
// bufs must be COLOR_ATTACHMENTi or NONE. Specifying a buffer out of order,
|
|
// BACK, or COLOR_ATTACHMENTm where `m` is greater than or equal to the value of
|
|
// MAX_COLOR_ATTACHMENTS, will generate the error INVALID_OPERATION.
|
|
|
|
// WEBGL_draw_buffers:
|
|
// "The value of the MAX_COLOR_ATTACHMENTS_WEBGL parameter must be greater than or
|
|
// equal to that of the MAX_DRAW_BUFFERS_WEBGL parameter."
|
|
// This means that if buffers.Length() isn't larger than MaxDrawBuffers, it won't
|
|
// be larger than MaxColorAttachments.
|
|
const auto& cur = buffers[i];
|
|
if (cur == LOCAL_GL_COLOR_ATTACHMENT0 + i) {
|
|
const auto& attach = mColorAttachments[i];
|
|
newColorDrawBuffers.push_back(&attach);
|
|
} else if (cur != LOCAL_GL_NONE) {
|
|
const bool isColorEnum = (cur >= LOCAL_GL_COLOR_ATTACHMENT0 &&
|
|
cur < mContext->LastColorAttachmentEnum());
|
|
if (cur != LOCAL_GL_BACK &&
|
|
!isColorEnum)
|
|
{
|
|
mContext->ErrorInvalidEnum("Unexpected enum in buffers.");
|
|
return;
|
|
}
|
|
|
|
mContext->ErrorInvalidOperation("`buffers[i]` must be NONE or"
|
|
" COLOR_ATTACHMENTi.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
////
|
|
|
|
mColorDrawBuffers.swap(newColorDrawBuffers);
|
|
RefreshDrawBuffers(); // Calls glDrawBuffers.
|
|
}
|
|
|
|
void
|
|
WebGLFramebuffer::ReadBuffer(GLenum attachPoint)
|
|
{
|
|
const auto& maybeAttach = GetColorAttachPoint(attachPoint);
|
|
if (!maybeAttach) {
|
|
const char text[] = "`mode` must be a COLOR_ATTACHMENTi, for 0 <= i <"
|
|
" MAX_DRAW_BUFFERS.";
|
|
if (attachPoint == LOCAL_GL_BACK) {
|
|
mContext->ErrorInvalidOperation(text);
|
|
} else {
|
|
mContext->ErrorInvalidEnum(text);
|
|
}
|
|
return;
|
|
}
|
|
const auto& attach = maybeAttach.value(); // Might be nullptr.
|
|
|
|
////
|
|
|
|
mColorReadBuffer = attach;
|
|
RefreshReadBuffer(); // Calls glReadBuffer.
|
|
}
|
|
|
|
////
|
|
|
|
void
|
|
WebGLFramebuffer::FramebufferRenderbuffer(GLenum attachEnum,
|
|
GLenum rbtarget, WebGLRenderbuffer* rb)
|
|
{
|
|
MOZ_ASSERT(mContext->mBoundDrawFramebuffer == this ||
|
|
mContext->mBoundReadFramebuffer == this);
|
|
|
|
// `attachment`
|
|
const auto maybeAttach = GetAttachPoint(attachEnum);
|
|
if (!maybeAttach || !maybeAttach.value()) {
|
|
mContext->ErrorInvalidEnum("Bad `attachment`: 0x%x.", attachEnum);
|
|
return;
|
|
}
|
|
const auto& attach = maybeAttach.value();
|
|
|
|
// `rbTarget`
|
|
if (rbtarget != LOCAL_GL_RENDERBUFFER) {
|
|
mContext->ErrorInvalidEnumInfo("rbtarget", rbtarget);
|
|
return;
|
|
}
|
|
|
|
// `rb`
|
|
if (rb) {
|
|
if (!mContext->ValidateObject("rb", *rb))
|
|
return;
|
|
|
|
if (!rb->mHasBeenBound) {
|
|
mContext->ErrorInvalidOperation("bindRenderbuffer must be called before"
|
|
" attachment to %04x",
|
|
attachEnum);
|
|
return;
|
|
}
|
|
}
|
|
// End of validation.
|
|
|
|
const auto& gl = mContext->gl;
|
|
gl->fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, mGLName);
|
|
if (mContext->IsWebGL2() && attachEnum == LOCAL_GL_DEPTH_STENCIL_ATTACHMENT) {
|
|
mDepthAttachment.SetRenderbuffer(gl, rb);
|
|
mStencilAttachment.SetRenderbuffer(gl, rb);
|
|
} else {
|
|
attach->SetRenderbuffer(gl, rb);
|
|
}
|
|
InvalidateCaches();
|
|
}
|
|
|
|
void
|
|
WebGLFramebuffer::FramebufferTexture2D(GLenum attachEnum,
|
|
GLenum texImageTarget, WebGLTexture* tex,
|
|
GLint level)
|
|
{
|
|
MOZ_ASSERT(mContext->mBoundDrawFramebuffer == this ||
|
|
mContext->mBoundReadFramebuffer == this);
|
|
|
|
// `attachment`
|
|
const auto maybeAttach = GetAttachPoint(attachEnum);
|
|
if (!maybeAttach || !maybeAttach.value()) {
|
|
mContext->ErrorInvalidEnum("Bad `attachment`: 0x%x.", attachEnum);
|
|
return;
|
|
}
|
|
const auto& attach = maybeAttach.value();
|
|
|
|
// `texImageTarget`
|
|
if (texImageTarget != LOCAL_GL_TEXTURE_2D &&
|
|
(texImageTarget < LOCAL_GL_TEXTURE_CUBE_MAP_POSITIVE_X ||
|
|
texImageTarget > LOCAL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))
|
|
{
|
|
mContext->ErrorInvalidEnumInfo("texImageTarget",
|
|
texImageTarget);
|
|
return;
|
|
}
|
|
|
|
// `texture`
|
|
if (tex) {
|
|
if (!mContext->ValidateObject("texture", *tex))
|
|
return;
|
|
|
|
if (!tex->Target()) {
|
|
mContext->ErrorInvalidOperation("`texture` has never been bound.");
|
|
return;
|
|
}
|
|
|
|
const TexTarget destTexTarget = TexImageTargetToTexTarget(texImageTarget);
|
|
if (tex->Target() != destTexTarget) {
|
|
mContext->ErrorInvalidOperation("Mismatched texture and texture target.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
// `level`
|
|
if (level < 0)
|
|
return mContext->ErrorInvalidValue("`level` must not be negative.");
|
|
|
|
if (mContext->IsWebGL2()) {
|
|
/* GLES 3.0.4 p208:
|
|
* If textarget is one of TEXTURE_CUBE_MAP_POSITIVE_X,
|
|
* TEXTURE_CUBE_MAP_POSITIVE_Y, TEXTURE_CUBE_MAP_POSITIVE_Z,
|
|
* TEXTURE_CUBE_MAP_NEGATIVE_X, TEXTURE_CUBE_MAP_NEGATIVE_Y,
|
|
* or TEXTURE_CUBE_MAP_NEGATIVE_Z, then level must be greater
|
|
* than or equal to zero and less than or equal to log2 of the
|
|
* value of MAX_CUBE_MAP_TEXTURE_SIZE. If textarget is TEXTURE_2D,
|
|
* level must be greater than or equal to zero and no larger than
|
|
* log2 of the value of MAX_TEXTURE_SIZE. Otherwise, an
|
|
* INVALID_VALUE error is generated.
|
|
*/
|
|
|
|
if (texImageTarget == LOCAL_GL_TEXTURE_2D) {
|
|
if (uint32_t(level) > FloorLog2(mContext->mGLMaxTextureSize))
|
|
return mContext->ErrorInvalidValue("`level` is too large.");
|
|
} else {
|
|
MOZ_ASSERT(texImageTarget >= LOCAL_GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
|
|
texImageTarget <= LOCAL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z);
|
|
|
|
if (uint32_t(level) > FloorLog2(mContext->mGLMaxCubeMapTextureSize))
|
|
return mContext->ErrorInvalidValue("`level` is too large.");
|
|
}
|
|
} else if (level != 0) {
|
|
return mContext->ErrorInvalidValue("`level` must be 0.");
|
|
}
|
|
|
|
// End of validation.
|
|
|
|
const auto& gl = mContext->gl;
|
|
gl->fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, mGLName);
|
|
if (mContext->IsWebGL2() && attachEnum == LOCAL_GL_DEPTH_STENCIL_ATTACHMENT) {
|
|
mDepthAttachment.SetTexImage(gl, tex, texImageTarget, level);
|
|
mStencilAttachment.SetTexImage(gl, tex, texImageTarget, level);
|
|
} else {
|
|
attach->SetTexImage(gl, tex, texImageTarget, level);
|
|
}
|
|
|
|
InvalidateCaches();
|
|
}
|
|
|
|
void
|
|
WebGLFramebuffer::FramebufferTextureLayer(GLenum attachEnum,
|
|
WebGLTexture* tex, GLint level, GLint layer)
|
|
{
|
|
MOZ_ASSERT(mContext->mBoundDrawFramebuffer == this ||
|
|
mContext->mBoundReadFramebuffer == this);
|
|
|
|
// `attachment`
|
|
const auto maybeAttach = GetAttachPoint(attachEnum);
|
|
if (!maybeAttach || !maybeAttach.value()) {
|
|
mContext->ErrorInvalidEnum("Bad `attachment`: 0x%x.", attachEnum);
|
|
return;
|
|
}
|
|
const auto& attach = maybeAttach.value();
|
|
|
|
// `level`, `layer`
|
|
if (layer < 0)
|
|
return mContext->ErrorInvalidValue("`layer` must be >= 0.");
|
|
|
|
if (level < 0)
|
|
return mContext->ErrorInvalidValue("`level` must be >= 0.");
|
|
|
|
// `texture`
|
|
GLenum texImageTarget = LOCAL_GL_TEXTURE_3D;
|
|
if (tex) {
|
|
if (!mContext->ValidateObject("texture", *tex))
|
|
return;
|
|
|
|
if (!tex->Target()) {
|
|
mContext->ErrorInvalidOperation("`texture` has never been bound.");
|
|
return;
|
|
}
|
|
|
|
texImageTarget = tex->Target().get();
|
|
switch (texImageTarget) {
|
|
case LOCAL_GL_TEXTURE_3D:
|
|
if (uint32_t(layer) >= mContext->mGLMax3DTextureSize) {
|
|
mContext->ErrorInvalidValue("`layer` must be < %s.",
|
|
"MAX_3D_TEXTURE_SIZE");
|
|
return;
|
|
}
|
|
|
|
if (uint32_t(level) > FloorLog2(mContext->mGLMax3DTextureSize)) {
|
|
mContext->ErrorInvalidValue("`level` must be <= log2(%s).",
|
|
"MAX_3D_TEXTURE_SIZE");
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case LOCAL_GL_TEXTURE_2D_ARRAY:
|
|
if (uint32_t(layer) >= mContext->mGLMaxArrayTextureLayers) {
|
|
mContext->ErrorInvalidValue("`layer` must be < %s.",
|
|
"MAX_ARRAY_TEXTURE_LAYERS");
|
|
return;
|
|
}
|
|
|
|
if (uint32_t(level) > FloorLog2(mContext->mGLMaxTextureSize)) {
|
|
mContext->ErrorInvalidValue("`level` must be <= log2(%s).",
|
|
"MAX_TEXTURE_SIZE");
|
|
return;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
mContext->ErrorInvalidOperation("`texture` must be a TEXTURE_3D or"
|
|
" TEXTURE_2D_ARRAY.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
// End of validation.
|
|
|
|
const auto& gl = mContext->gl;
|
|
gl->fBindFramebuffer(LOCAL_GL_FRAMEBUFFER, mGLName);
|
|
if (mContext->IsWebGL2() && attachEnum == LOCAL_GL_DEPTH_STENCIL_ATTACHMENT) {
|
|
mDepthAttachment.SetTexImage(gl, tex, texImageTarget, level, layer);
|
|
mStencilAttachment.SetTexImage(gl, tex, texImageTarget, level, layer);
|
|
} else {
|
|
attach->SetTexImage(gl, tex, texImageTarget, level, layer);
|
|
}
|
|
|
|
InvalidateCaches();
|
|
}
|
|
|
|
JS::Value
|
|
WebGLFramebuffer::GetAttachmentParameter(JSContext* cx,
|
|
GLenum target, GLenum attachEnum, GLenum pname,
|
|
ErrorResult* const out_error)
|
|
{
|
|
const auto maybeAttach = GetAttachPoint(attachEnum);
|
|
if (!maybeAttach || attachEnum == LOCAL_GL_NONE) {
|
|
mContext->ErrorInvalidEnum("Can only query COLOR_ATTACHMENTi,"
|
|
" DEPTH_ATTACHMENT, DEPTH_STENCIL_ATTACHMENT, or"
|
|
" STENCIL_ATTACHMENT for a framebuffer.");
|
|
return JS::NullValue();
|
|
}
|
|
auto attach = maybeAttach.value();
|
|
|
|
if (mContext->IsWebGL2() && attachEnum == LOCAL_GL_DEPTH_STENCIL_ATTACHMENT) {
|
|
// There are a couple special rules for this one.
|
|
|
|
if (pname == LOCAL_GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE) {
|
|
mContext->ErrorInvalidOperation("Querying"
|
|
" FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE"
|
|
" against DEPTH_STENCIL_ATTACHMENT is an"
|
|
" error.");
|
|
return JS::NullValue();
|
|
}
|
|
|
|
if (mDepthAttachment.Renderbuffer() != mStencilAttachment.Renderbuffer() ||
|
|
mDepthAttachment.Texture() != mStencilAttachment.Texture())
|
|
{
|
|
mContext->ErrorInvalidOperation("DEPTH_ATTACHMENT and STENCIL_ATTACHMENT"
|
|
" have different objects bound.");
|
|
return JS::NullValue();
|
|
}
|
|
|
|
attach = &mDepthAttachment;
|
|
}
|
|
|
|
return attach->GetParameter(mContext, cx, target, attachEnum, pname,
|
|
out_error);
|
|
}
|
|
|
|
////////////////////
|
|
|
|
static void
|
|
GetBackbufferFormats(const WebGLContext* webgl,
|
|
const webgl::FormatInfo** const out_color,
|
|
const webgl::FormatInfo** const out_depth,
|
|
const webgl::FormatInfo** const out_stencil)
|
|
{
|
|
const auto& options = webgl->Options();
|
|
|
|
const auto effFormat = (options.alpha ? webgl::EffectiveFormat::RGBA8
|
|
: webgl::EffectiveFormat::RGB8);
|
|
*out_color = webgl::GetFormat(effFormat);
|
|
|
|
*out_depth = nullptr;
|
|
*out_stencil = nullptr;
|
|
if (options.depth && options.stencil) {
|
|
*out_depth = webgl::GetFormat(webgl::EffectiveFormat::DEPTH24_STENCIL8);
|
|
*out_stencil = *out_depth;
|
|
} else {
|
|
if (options.depth) {
|
|
*out_depth = webgl::GetFormat(webgl::EffectiveFormat::DEPTH_COMPONENT16);
|
|
}
|
|
if (options.stencil) {
|
|
*out_stencil = webgl::GetFormat(webgl::EffectiveFormat::STENCIL_INDEX8);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*static*/ void
|
|
WebGLFramebuffer::BlitFramebuffer(WebGLContext* webgl,
|
|
GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
|
|
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
|
|
GLbitfield mask, GLenum filter)
|
|
{
|
|
const GLbitfield depthAndStencilBits = LOCAL_GL_DEPTH_BUFFER_BIT |
|
|
LOCAL_GL_STENCIL_BUFFER_BIT;
|
|
if (bool(mask & depthAndStencilBits) &&
|
|
filter == LOCAL_GL_LINEAR)
|
|
{
|
|
webgl->ErrorInvalidOperation("DEPTH_BUFFER_BIT and STENCIL_BUFFER_BIT can"
|
|
" only be used with NEAREST filtering.");
|
|
return;
|
|
}
|
|
|
|
const auto& srcFB = webgl->mBoundReadFramebuffer;
|
|
const auto& dstFB = webgl->mBoundDrawFramebuffer;
|
|
|
|
////
|
|
// Collect data
|
|
|
|
const auto fnGetFormat = [](const WebGLFBAttachPoint& cur,
|
|
bool* const out_hasSamples) -> const webgl::FormatInfo*
|
|
{
|
|
const auto& imageInfo = cur.GetImageInfo();
|
|
if (!imageInfo)
|
|
return nullptr; // No attachment.
|
|
*out_hasSamples = bool(imageInfo->mSamples);
|
|
return imageInfo->mFormat->format;
|
|
};
|
|
|
|
bool srcHasSamples = false;
|
|
bool srcIsFilterable = true;
|
|
const webgl::FormatInfo* srcColorFormat;
|
|
const webgl::FormatInfo* srcDepthFormat;
|
|
const webgl::FormatInfo* srcStencilFormat;
|
|
|
|
if (srcFB) {
|
|
srcColorFormat = nullptr;
|
|
if (srcFB->mColorReadBuffer) {
|
|
const auto& imageInfo = srcFB->mColorReadBuffer->GetImageInfo();
|
|
if (imageInfo) {
|
|
srcIsFilterable &= imageInfo->mFormat->isFilterable;
|
|
}
|
|
srcColorFormat = fnGetFormat(*(srcFB->mColorReadBuffer), &srcHasSamples);
|
|
}
|
|
srcDepthFormat = fnGetFormat(srcFB->DepthAttachment(), &srcHasSamples);
|
|
srcStencilFormat = fnGetFormat(srcFB->StencilAttachment(), &srcHasSamples);
|
|
MOZ_ASSERT(!srcFB->DepthStencilAttachment().HasAttachment());
|
|
} else {
|
|
srcHasSamples = false; // Always false.
|
|
|
|
GetBackbufferFormats(webgl, &srcColorFormat, &srcDepthFormat, &srcStencilFormat);
|
|
}
|
|
|
|
////
|
|
|
|
bool dstHasSamples = false;
|
|
const webgl::FormatInfo* dstDepthFormat;
|
|
const webgl::FormatInfo* dstStencilFormat;
|
|
bool dstHasColor = false;
|
|
bool colorFormatsMatch = true;
|
|
bool colorTypesMatch = true;
|
|
|
|
const auto fnCheckColorFormat = [&](const webgl::FormatInfo* dstFormat) {
|
|
MOZ_ASSERT(dstFormat->r || dstFormat->g || dstFormat->b || dstFormat->a);
|
|
dstHasColor = true;
|
|
colorFormatsMatch &= (dstFormat == srcColorFormat);
|
|
colorTypesMatch &= srcColorFormat &&
|
|
(dstFormat->baseType == srcColorFormat->baseType);
|
|
};
|
|
|
|
if (dstFB) {
|
|
for (const auto& cur : dstFB->mColorDrawBuffers) {
|
|
const auto& format = fnGetFormat(*cur, &dstHasSamples);
|
|
if (!format)
|
|
continue;
|
|
|
|
fnCheckColorFormat(format);
|
|
}
|
|
|
|
dstDepthFormat = fnGetFormat(dstFB->DepthAttachment(), &dstHasSamples);
|
|
dstStencilFormat = fnGetFormat(dstFB->StencilAttachment(), &dstHasSamples);
|
|
MOZ_ASSERT(!dstFB->DepthStencilAttachment().HasAttachment());
|
|
} else {
|
|
dstHasSamples = webgl->Options().antialias;
|
|
|
|
const webgl::FormatInfo* dstColorFormat;
|
|
GetBackbufferFormats(webgl, &dstColorFormat, &dstDepthFormat, &dstStencilFormat);
|
|
|
|
fnCheckColorFormat(dstColorFormat);
|
|
}
|
|
|
|
////
|
|
// Clear unused buffer bits
|
|
|
|
if (mask & LOCAL_GL_COLOR_BUFFER_BIT &&
|
|
!srcColorFormat && !dstHasColor)
|
|
{
|
|
mask ^= LOCAL_GL_COLOR_BUFFER_BIT;
|
|
}
|
|
|
|
if (mask & LOCAL_GL_DEPTH_BUFFER_BIT &&
|
|
!srcDepthFormat && !dstDepthFormat)
|
|
{
|
|
mask ^= LOCAL_GL_DEPTH_BUFFER_BIT;
|
|
}
|
|
|
|
if (mask & LOCAL_GL_STENCIL_BUFFER_BIT &&
|
|
!srcStencilFormat && !dstStencilFormat)
|
|
{
|
|
mask ^= LOCAL_GL_STENCIL_BUFFER_BIT;
|
|
}
|
|
|
|
////
|
|
// Validation
|
|
|
|
if (dstHasSamples) {
|
|
webgl->ErrorInvalidOperation("DRAW_FRAMEBUFFER may not have multiple"
|
|
" samples.");
|
|
return;
|
|
}
|
|
|
|
bool requireFilterable = (filter == LOCAL_GL_LINEAR);
|
|
if (srcHasSamples) {
|
|
requireFilterable = false; // It picks one.
|
|
|
|
if (mask & LOCAL_GL_COLOR_BUFFER_BIT &&
|
|
dstHasColor && !colorFormatsMatch)
|
|
{
|
|
webgl->ErrorInvalidOperation("Color buffer formats must match if"
|
|
" selected, when reading from a multisampled"
|
|
" source.");
|
|
return;
|
|
}
|
|
|
|
if (dstX0 != srcX0 ||
|
|
dstX1 != srcX1 ||
|
|
dstY0 != srcY0 ||
|
|
dstY1 != srcY1)
|
|
{
|
|
webgl->ErrorInvalidOperation("If the source is multisampled, then the"
|
|
" source and dest regions must match exactly.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
// -
|
|
|
|
if (mask & LOCAL_GL_COLOR_BUFFER_BIT) {
|
|
if (requireFilterable && !srcIsFilterable) {
|
|
webgl->ErrorInvalidOperation("`filter` is LINEAR and READ_BUFFER"
|
|
" contains integer data.");
|
|
return;
|
|
}
|
|
|
|
if (!colorTypesMatch) {
|
|
webgl->ErrorInvalidOperation("Color component types (float/uint/"
|
|
"int) must match.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* GLES 3.0.4, p199:
|
|
* Calling BlitFramebuffer will result in an INVALID_OPERATION error if
|
|
* mask includes DEPTH_BUFFER_BIT or STENCIL_BUFFER_BIT, and the source
|
|
* and destination depth and stencil buffer formats do not match.
|
|
*
|
|
* jgilbert: The wording is such that if only DEPTH_BUFFER_BIT is specified,
|
|
* the stencil formats must match. This seems wrong. It could be a spec bug,
|
|
* or I could be missing an interaction in one of the earlier paragraphs.
|
|
*/
|
|
if (mask & LOCAL_GL_DEPTH_BUFFER_BIT &&
|
|
dstDepthFormat && dstDepthFormat != srcDepthFormat)
|
|
{
|
|
webgl->ErrorInvalidOperation("Depth buffer formats must match if selected.");
|
|
return;
|
|
}
|
|
|
|
if (mask & LOCAL_GL_STENCIL_BUFFER_BIT &&
|
|
dstStencilFormat && dstStencilFormat != srcStencilFormat)
|
|
{
|
|
webgl->ErrorInvalidOperation("Stencil buffer formats must match if selected.");
|
|
return;
|
|
}
|
|
|
|
////
|
|
// Check for feedback
|
|
|
|
if (srcFB && dstFB) {
|
|
const WebGLFBAttachPoint* feedback = nullptr;
|
|
|
|
if (mask & LOCAL_GL_COLOR_BUFFER_BIT) {
|
|
MOZ_ASSERT(srcFB->mColorReadBuffer->HasAttachment());
|
|
for (const auto& cur : dstFB->mColorDrawBuffers) {
|
|
if (srcFB->mColorReadBuffer->IsEquivalentForFeedback(*cur)) {
|
|
feedback = cur;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mask & LOCAL_GL_DEPTH_BUFFER_BIT &&
|
|
srcFB->DepthAttachment().IsEquivalentForFeedback(dstFB->DepthAttachment()))
|
|
{
|
|
feedback = &dstFB->DepthAttachment();
|
|
}
|
|
|
|
if (mask & LOCAL_GL_STENCIL_BUFFER_BIT &&
|
|
srcFB->StencilAttachment().IsEquivalentForFeedback(dstFB->StencilAttachment()))
|
|
{
|
|
feedback = &dstFB->StencilAttachment();
|
|
}
|
|
|
|
if (feedback) {
|
|
webgl->ErrorInvalidOperation("Feedback detected into DRAW_FRAMEBUFFER's"
|
|
" 0x%04x attachment.",
|
|
feedback->mAttachmentPoint);
|
|
return;
|
|
}
|
|
} else if (!srcFB && !dstFB) {
|
|
webgl->ErrorInvalidOperation("Feedback with default framebuffer.");
|
|
return;
|
|
}
|
|
|
|
////
|
|
|
|
const auto& gl = webgl->gl;
|
|
const ScopedDrawCallWrapper wrapper(*webgl);
|
|
gl->fBlitFramebuffer(srcX0, srcY0, srcX1, srcY1,
|
|
dstX0, dstY0, dstX1, dstY1,
|
|
mask, filter);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Goop.
|
|
|
|
JSObject*
|
|
WebGLFramebuffer::WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto)
|
|
{
|
|
return dom::WebGLFramebuffer_Binding::Wrap(cx, this, givenProto);
|
|
}
|
|
|
|
inline void
|
|
ImplCycleCollectionUnlink(mozilla::WebGLFBAttachPoint& field)
|
|
{
|
|
field.Unlink();
|
|
}
|
|
|
|
inline void
|
|
ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& callback,
|
|
const mozilla::WebGLFBAttachPoint& field,
|
|
const char* name,
|
|
uint32_t flags = 0)
|
|
{
|
|
CycleCollectionNoteChild(callback, field.Texture(), name, flags);
|
|
CycleCollectionNoteChild(callback, field.Renderbuffer(), name, flags);
|
|
}
|
|
|
|
template<typename C>
|
|
inline void
|
|
ImplCycleCollectionUnlink(C& field)
|
|
{
|
|
for (auto& cur : field) {
|
|
cur.Unlink();
|
|
}
|
|
}
|
|
|
|
template<typename C>
|
|
inline void
|
|
ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& callback,
|
|
const C& field,
|
|
const char* name,
|
|
uint32_t flags = 0)
|
|
{
|
|
for (auto& cur : field) {
|
|
ImplCycleCollectionTraverse(callback, cur, name, flags);
|
|
}
|
|
}
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(WebGLFramebuffer,
|
|
mDepthAttachment,
|
|
mStencilAttachment,
|
|
mDepthStencilAttachment,
|
|
mColorAttachments)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WebGLFramebuffer, AddRef)
|
|
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WebGLFramebuffer, Release)
|
|
|
|
} // namespace mozilla
|