Add: [OpenGL] Support for a separate animation buffer that stores the palette values of the screen in addition to the colour buffer.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/video/win32_v.cpp b/src/video/win32_v.cpp
index f5c6d3cc7..a9342d5f4 100644
--- a/src/video/win32_v.cpp
+++ b/src/video/win32_v.cpp
@@ -1545,14 +1545,19 @@ bool VideoDriver_Win32OpenGL::AllocateBackingStore(int w, int h, bool force)
 
 void *VideoDriver_Win32OpenGL::GetVideoPointer()
 {
+	if (BlitterFactory::GetCurrentBlitter()->NeedsAnimationBuffer()) {
+		this->anim_buffer = OpenGLBackend::Get()->GetAnimBuffer();
+	}
 	return OpenGLBackend::Get()->GetVideoBuffer();
 }
 
 void VideoDriver_Win32OpenGL::ReleaseVideoPointer()
 {
+	if (this->anim_buffer != nullptr) OpenGLBackend::Get()->ReleaseAnimBuffer(this->dirty_rect);
 	OpenGLBackend::Get()->ReleaseVideoBuffer(this->dirty_rect);
 	this->dirty_rect = {};
 	_screen.dst_ptr = nullptr;
+	this->anim_buffer = nullptr;
 }
 
 void VideoDriver_Win32OpenGL::Paint()