LibWeb/WebGL2: Implement invalidateSubFramebuffer

Author: Lubrsi

Libraries/LibWeb/WebGL/WebGL2RenderingContextBase.idl

@@ -298,7 +298,7 @@ interface mixin WebGL2RenderingContextBase {
     undefined blitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
     undefined framebufferTextureLayer(GLenum target, GLenum attachment, WebGLTexture? texture, GLint level, GLint layer);
     undefined invalidateFramebuffer(GLenum target, sequence<GLenum> attachments);
-    [FIXME] undefined invalidateSubFramebuffer(GLenum target, sequence<GLenum> attachments, GLint x, GLint y, GLsizei width, GLsizei height);
+    undefined invalidateSubFramebuffer(GLenum target, sequence<GLenum> attachments, GLint x, GLint y, GLsizei width, GLsizei height);
     undefined readBuffer(GLenum src);
 
     // Renderbuffer objects

Libraries/LibWeb/WebGL/WebGL2RenderingContextImpl.cpp

@@ -101,6 +101,15 @@ void WebGL2RenderingContextImpl::invalidate_framebuffer(WebIDL::UnsignedLong tar
     needs_to_present();
 }
 
+void WebGL2RenderingContextImpl::invalidate_sub_framebuffer(WebIDL::UnsignedLong target, Vector<WebIDL::UnsignedLong> attachments, WebIDL::Long x, WebIDL::Long y, WebIDL::Long width, WebIDL::Long height)
+{
+    m_context->make_current();
+    m_context->notify_content_will_change();
+
+    glInvalidateSubFramebuffer(target, attachments.size(), attachments.data(), x, y, width, height);
+    needs_to_present();
+}
+
 void WebGL2RenderingContextImpl::read_buffer(WebIDL::UnsignedLong src)
 {
     m_context->make_current();

Libraries/LibWeb/WebGL/WebGL2RenderingContextImpl.h

@@ -32,6 +32,7 @@ class WebGL2RenderingContextImpl : public WebGLRenderingContextBase {
     void blit_framebuffer(WebIDL::Long src_x0, WebIDL::Long src_y0, WebIDL::Long src_x1, WebIDL::Long src_y1, WebIDL::Long dst_x0, WebIDL::Long dst_y0, WebIDL::Long dst_x1, WebIDL::Long dst_y1, WebIDL::UnsignedLong mask, WebIDL::UnsignedLong filter);
     void framebuffer_texture_layer(WebIDL::UnsignedLong target, WebIDL::UnsignedLong attachment, GC::Root<WebGLTexture> texture, WebIDL::Long level, WebIDL::Long layer);
     void invalidate_framebuffer(WebIDL::UnsignedLong target, Vector<WebIDL::UnsignedLong> attachments);
+    void invalidate_sub_framebuffer(WebIDL::UnsignedLong target, Vector<WebIDL::UnsignedLong> attachments, WebIDL::Long x, WebIDL::Long y, WebIDL::Long width, WebIDL::Long height);
     void read_buffer(WebIDL::UnsignedLong src);
     JS::Value get_internalformat_parameter(WebIDL::UnsignedLong target, WebIDL::UnsignedLong internalformat, WebIDL::UnsignedLong pname);
     void renderbuffer_storage_multisample(WebIDL::UnsignedLong target, WebIDL::Long samples, WebIDL::UnsignedLong internalformat, WebIDL::Long width, WebIDL::Long height);