From b7572ea9362ade47b48902162a89c1218cab71ee Mon Sep 17 00:00:00 2001
From: Kai Blaschke <kai.blaschke@gdata.de>
Date: Mon, 24 Jul 2023 11:39:49 +0200
Subject: [PATCH] Use glDrawBuffers instead of glDrawBuffer with GLES.

---
 src/libprojectM/MilkdropPreset/MilkdropPreset.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/libprojectM/MilkdropPreset/MilkdropPreset.cpp b/src/libprojectM/MilkdropPreset/MilkdropPreset.cpp
index af56323b6..b984f5152 100755
--- a/src/libprojectM/MilkdropPreset/MilkdropPreset.cpp
+++ b/src/libprojectM/MilkdropPreset/MilkdropPreset.cpp
@@ -146,7 +146,14 @@ void MilkdropPreset::RenderFrame(const libprojectM::Audio::FrameAudioData& audio
     m_framebuffer.BindRead(m_previousFrameBuffer);
     glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
     glReadBuffer(GL_COLOR_ATTACHMENT0);
+#if USE_GLES
+    {
+        GLenum drawBuffers[] = { GL_COLOR_ATTACHMENT0 };
+        glDrawBuffers(1, drawBuffers);
+    }
+#else
     glDrawBuffer(GL_COLOR_ATTACHMENT0);
+#endif
     glBlitFramebuffer(0, 0, renderContext.viewportSizeX, renderContext.viewportSizeY,
                       0, 0, renderContext.viewportSizeX, renderContext.viewportSizeY,
                       GL_COLOR_BUFFER_BIT, GL_NEAREST);