renderer: fix legacy_renderer build (#3732)

In GLES2, `GL_RGB10_A2` and `GL_UNSIGNED_INT_2_10_10_10_REV` are defined as
`GL_RGB10_A2_EXT` and `GL_UNSIGNED_INT_2_10_10_10_REV_EXT` respectively.

2 files changed, 13 insertions, 2 deletions

diff --git a/src/helpers/MiscFunctions.cpp b/src/helpers/MiscFunctions.cpp
index acb9cf20..b65f4a87 100644
--- a/src/helpers/MiscFunctions.cpp
+++ b/src/helpers/MiscFunctions.cpp
@@ -757,7 +757,12 @@ uint32_t drmFormatToGL(uint32_t drm) {
         case DRM_FORMAT_XRGB8888:
         case DRM_FORMAT_XBGR8888: return GL_RGBA; // doesn't matter, opengl is gucci in this case.
         case DRM_FORMAT_XRGB2101010:
-        case DRM_FORMAT_XBGR2101010: return GL_RGB10_A2;
+        case DRM_FORMAT_XBGR2101010:
+#ifdef GLES2
+            return GL_RGB10_A2_EXT;
+#else
+            return GL_RGB10_A2;
+#endif
         default: return GL_RGBA;
     }
     UNREACHABLE();
diff --git a/src/render/Framebuffer.cpp b/src/render/Framebuffer.cpp
index e1f815ce..1ebbc585 100644
--- a/src/render/Framebuffer.cpp
+++ b/src/render/Framebuffer.cpp
@@ -6,7 +6,13 @@ bool CFramebuffer::alloc(int w, int h, uint32_t drmFormat) {
     RASSERT((w > 1 && h > 1), "cannot alloc a FB with negative / zero size! (attempted {}x{})", w, h);
 
     uint32_t glFormat = drmFormatToGL(drmFormat);
-    uint32_t glType   = glFormat != GL_RGBA ? GL_UNSIGNED_INT_2_10_10_10_REV : GL_UNSIGNED_BYTE;
+    uint32_t glType   = glFormat != GL_RGBA ?
+#ifdef GLES2
+        GL_UNSIGNED_INT_2_10_10_10_REV_EXT :
+#else
+        GL_UNSIGNED_INT_2_10_10_10_REV :
+#endif
+        GL_UNSIGNED_BYTE;
 
     if (m_iFb == (uint32_t)-1) {
         firstAlloc = true;