void
WebGL2Context::InvalidateSubFramebuffer(GLenum target, const dom::Sequence<GLenum>& attachments,
GLint x, GLint y, GLsizei width, GLsizei height,
ErrorResult& rv)
{
if (IsContextLost())
return;
MakeContextCurrent();
if (!ValidateFramebufferTarget(target, "framebufferRenderbuffer"))
return;
const WebGLFramebuffer* fb;
bool isDefaultFB;
switch (target) {
case LOCAL_GL_FRAMEBUFFER:
case LOCAL_GL_DRAW_FRAMEBUFFER:
fb = mBoundDrawFramebuffer;
isDefaultFB = gl->Screen()->IsDrawFramebufferDefault();
break;
case LOCAL_GL_READ_FRAMEBUFFER:
fb = mBoundReadFramebuffer;
isDefaultFB = gl->Screen()->IsReadFramebufferDefault();
break;
default:
MOZ_CRASH("Bad target.");
}
for (size_t i = 0; i < attachments.Length(); i++) {
if (!ValidateFramebufferAttachment(fb, attachments[i],
"invalidateSubFramebuffer"))
{
return;
}
}
// InvalidateFramebuffer is a hint to the driver. Should be OK to
// skip calls if not supported, for example by OSX 10.9 GL
// drivers.
static bool invalidateFBSupported = gl->IsSupported(gl::GLFeature::invalidate_framebuffer);
if (!invalidateFBSupported)
return;
if (!fb && !isDefaultFB) {
dom::Sequence<GLenum> tmpAttachments;
if (!TranslateDefaultAttachments(attachments, &tmpAttachments)) {
rv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
gl->fInvalidateSubFramebuffer(target, tmpAttachments.Length(), tmpAttachments.Elements(),
x, y, width, height);
} else {
gl->fInvalidateSubFramebuffer(target, attachments.Length(), attachments.Elements(),
x, y, width, height);
}
}
void
WebGL2Context::FramebufferTextureLayer(GLenum target, GLenum attachment,
WebGLTexture* texture, GLint level, GLint layer)
{
if (IsContextLost())
return;
if (!ValidateFramebufferTarget(target, "framebufferTextureLayer"))
return;
if (!ValidateTextureLayerAttachment(attachment))
return ErrorInvalidEnumInfo("framebufferTextureLayer: attachment:", attachment);
if (texture) {
if (texture->IsDeleted()) {
return ErrorInvalidValue("framebufferTextureLayer: texture must be a valid "
"texture object.");
}
if (layer < 0)
return ErrorInvalidValue("framebufferTextureLayer: layer must be >= 0.");
if (level < 0)
return ErrorInvalidValue("framebufferTextureLayer: level must be >= 0.");
switch (texture->Target().get()) {
case LOCAL_GL_TEXTURE_3D:
if (uint32_t(layer) >= mImplMax3DTextureSize) {
return ErrorInvalidValue("framebufferTextureLayer: layer must be < "
"MAX_3D_TEXTURE_SIZE");
}
if (uint32_t(level) > FloorLog2(mImplMax3DTextureSize)) {
return ErrorInvalidValue("framebufferTextureLayer: layer mube be <= "
"log2(MAX_3D_TEXTURE_SIZE");
}
break;
case LOCAL_GL_TEXTURE_2D_ARRAY:
if (uint32_t(layer) >= mImplMaxArrayTextureLayers) {
return ErrorInvalidValue("framebufferTextureLayer: layer must be < "
"MAX_ARRAY_TEXTURE_LAYERS");
}
if (uint32_t(level) > FloorLog2(mImplMaxTextureSize)) {
return ErrorInvalidValue("framebufferTextureLayer: layer mube be <= "
"log2(MAX_TEXTURE_SIZE");
}
break;
default:
return ErrorInvalidOperation("framebufferTextureLayer: texture must be an "
"existing 3D texture, or a 2D texture array.");
}
}
WebGLFramebuffer* fb;
switch (target) {
case LOCAL_GL_FRAMEBUFFER:
case LOCAL_GL_DRAW_FRAMEBUFFER:
fb = mBoundDrawFramebuffer;
break;
case LOCAL_GL_READ_FRAMEBUFFER:
fb = mBoundReadFramebuffer;
break;
default:
MOZ_CRASH("Bad target.");
}
if (!fb) {
return ErrorInvalidOperation("framebufferTextureLayer: cannot modify"
" framebuffer 0.");
}
fb->FramebufferTextureLayer(attachment, texture, level, layer);
}
