void
WebGLFBAttachPoint::FinalizeAttachment(gl::GLContext* gl,
FBAttachment attachmentLoc) const
{
if (!HasImage()) {
switch (attachmentLoc.get()) {
case LOCAL_GL_DEPTH_ATTACHMENT:
case LOCAL_GL_STENCIL_ATTACHMENT:
case LOCAL_GL_DEPTH_STENCIL_ATTACHMENT:
break;
default:
gl->fFramebufferRenderbuffer(LOCAL_GL_FRAMEBUFFER, attachmentLoc.get(),
LOCAL_GL_RENDERBUFFER, 0);
break;
}
return;
}
MOZ_ASSERT(HasImage());
if (Texture()) {
MOZ_ASSERT(gl == Texture()->Context()->GL());
const GLenum imageTarget = ImageTarget().get();
const GLint mipLevel = MipLevel();
const GLuint glName = Texture()->mGLName;
if (attachmentLoc == LOCAL_GL_DEPTH_STENCIL_ATTACHMENT) {
gl->fFramebufferTexture2D(LOCAL_GL_FRAMEBUFFER, LOCAL_GL_DEPTH_ATTACHMENT,
imageTarget, glName, mipLevel);
gl->fFramebufferTexture2D(LOCAL_GL_FRAMEBUFFER, LOCAL_GL_STENCIL_ATTACHMENT,
imageTarget, glName, mipLevel);
} else {
gl->fFramebufferTexture2D(LOCAL_GL_FRAMEBUFFER, attachmentLoc.get(),
imageTarget, glName, mipLevel);
}
return;
}
if (Renderbuffer()) {
Renderbuffer()->FramebufferRenderbuffer(attachmentLoc);
return;
}
MOZ_CRASH();
}
JS::Value
WebGLFBAttachPoint::GetParameter(const char* funcName, WebGLContext* webgl, JSContext* cx,
GLenum target, GLenum attachment, GLenum pname,
ErrorResult* const out_error)
{
const bool hasAttachment = (mTexturePtr || mRenderbufferPtr);
if (!hasAttachment) {
// Divergent between GLES 3 and 2.
// GLES 2.0.25 p127:
// "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then querying any
// other pname will generate INVALID_ENUM."
// GLES 3.0.4 p240:
// "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, no framebuffer is
// bound to target. In this case querying pname
// FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero, and all other queries
// will generate an INVALID_OPERATION error."
switch (pname) {
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
return JS::Int32Value(LOCAL_GL_NONE);
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
if (webgl->IsWebGL2())
return JS::NullValue();
break;
default:
break;
}
if (webgl->IsWebGL2()) {
webgl->ErrorInvalidOperation("%s: No attachment at %s.", funcName,
webgl->EnumName(attachment));
} else {
webgl->ErrorInvalidEnum("%s: No attachment at %s.", funcName,
webgl->EnumName(attachment));
}
return JS::NullValue();
}
bool isPNameValid = false;
switch (pname) {
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
return JS::Int32Value(mTexturePtr ? LOCAL_GL_TEXTURE
: LOCAL_GL_RENDERBUFFER);
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
return (mTexturePtr ? webgl->WebGLObjectAsJSValue(cx, mTexturePtr.get(),
*out_error)
: webgl->WebGLObjectAsJSValue(cx, mRenderbufferPtr.get(),
*out_error));
////////////////
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
isPNameValid = true;
break;
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
MOZ_ASSERT(attachment != LOCAL_GL_DEPTH_STENCIL_ATTACHMENT);
isPNameValid = true;
break;
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
if (webgl->IsWebGL2() ||
webgl->IsExtensionEnabled(WebGLExtensionID::EXT_sRGB))
{
const auto format = Format();
if (!format)
return JS::NullValue();
return JS::Int32Value(format->format->isSRGB ? LOCAL_GL_SRGB
: LOCAL_GL_LINEAR);
}
break;
////////////////
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL:
if (mTexturePtr)
return JS::Int32Value(MipLevel());
break;
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE:
if (mTexturePtr) {
GLenum face = 0;
if (mTexturePtr->Target() == LOCAL_GL_TEXTURE_CUBE_MAP) {
face = ImageTarget().get();
}
return JS::Int32Value(face);
}
break;
case LOCAL_GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER:
if (mTexturePtr) {
int32_t layer = 0;
if (ImageTarget() == LOCAL_GL_TEXTURE_2D_ARRAY ||
ImageTarget() == LOCAL_GL_TEXTURE_3D)
{
layer = Layer();
}
return JS::Int32Value(layer);
}
break;
}
if (!isPNameValid) {
webgl->ErrorInvalidEnum("%s: Invalid pname: 0x%04x", funcName, pname);
return JS::NullValue();
}
gl::GLContext* gl = webgl->GL();
gl->MakeCurrent();
GLint ret = 0;
gl->fGetFramebufferAttachmentParameteriv(target, attachment, pname, &ret);
return JS::Int32Value(ret);
}
void
WebGLFBAttachPoint::FinalizeAttachment(gl::GLContext* gl, GLenum attachment) const
{
if (!HasImage()) {
switch (attachment) {
case LOCAL_GL_DEPTH_ATTACHMENT:
case LOCAL_GL_STENCIL_ATTACHMENT:
case LOCAL_GL_DEPTH_STENCIL_ATTACHMENT:
break;
default:
gl->fFramebufferRenderbuffer(LOCAL_GL_FRAMEBUFFER, attachment,
LOCAL_GL_RENDERBUFFER, 0);
break;
}
return;
}
MOZ_ASSERT(HasImage());
if (Texture()) {
MOZ_ASSERT(gl == Texture()->mContext->GL());
const GLenum imageTarget = ImageTarget().get();
const GLint mipLevel = MipLevel();
const GLint layer = Layer();
const GLuint glName = Texture()->mGLName;
switch (imageTarget) {
case LOCAL_GL_TEXTURE_2D:
case LOCAL_GL_TEXTURE_CUBE_MAP_POSITIVE_X:
case LOCAL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
case LOCAL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
case LOCAL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case LOCAL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
case LOCAL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
if (attachment == LOCAL_GL_DEPTH_STENCIL_ATTACHMENT) {
gl->fFramebufferTexture2D(LOCAL_GL_FRAMEBUFFER, LOCAL_GL_DEPTH_ATTACHMENT,
imageTarget, glName, mipLevel);
gl->fFramebufferTexture2D(LOCAL_GL_FRAMEBUFFER,
LOCAL_GL_STENCIL_ATTACHMENT, imageTarget,
glName, mipLevel);
} else {
gl->fFramebufferTexture2D(LOCAL_GL_FRAMEBUFFER, attachment, imageTarget,
glName, mipLevel);
}
break;
case LOCAL_GL_TEXTURE_2D_ARRAY:
case LOCAL_GL_TEXTURE_3D:
if (attachment == LOCAL_GL_DEPTH_STENCIL_ATTACHMENT) {
gl->fFramebufferTextureLayer(LOCAL_GL_FRAMEBUFFER,
LOCAL_GL_DEPTH_ATTACHMENT, glName, mipLevel,
layer);
gl->fFramebufferTextureLayer(LOCAL_GL_FRAMEBUFFER,
LOCAL_GL_STENCIL_ATTACHMENT, glName,
mipLevel, layer);
} else {
gl->fFramebufferTextureLayer(LOCAL_GL_FRAMEBUFFER, attachment, glName,
mipLevel, layer);
}
break;
}
return ;
}
if (Renderbuffer()) {
Renderbuffer()->FramebufferRenderbuffer(attachment);
return;
}
MOZ_CRASH();
}
bool
WebGLFramebuffer::AttachPoint::IsDefined() const
{
return Renderbuffer() ||
(Texture() && Texture()->HasImageInfoAt(ImageTarget(), 0));
}
