GL/Context: Disable fbfetch on Adreno GLES <502

src/util/gl/context.cpp

@@ -75,6 +75,22 @@ static void DisableBrokenExtensions(const char* gl_vendor, const char* gl_render
       GLAD_GL_EXT_disjoint_timer_query = 0;
     }
   }
+  else if (std::strstr(gl_vendor, "Qualcomm") && std::strstr(gl_renderer, "Adreno"))
+  {
+    // Framebuffer fetch appears to be broken in drivers ?? >= 464 < 502.
+    int gl_major_version = 0, gl_minor_version = 0, major_version = 0;
+    if ((std::sscanf(gl_version, "OpenGL ES %d.%d V@%d", &gl_major_version, &gl_minor_version, &major_version) == 3 &&
+         gl_major_version >= 3 && gl_minor_version >= 2 && major_version < 502))
+    {
+      Log_VerboseFmt("Disabling GL_EXT_shader_framebuffer_fetch on Adreno version {}", major_version);
+      GLAD_GL_EXT_shader_framebuffer_fetch = 0;
+      GLAD_GL_ARM_shader_framebuffer_fetch = 0;
+    }
+    else
+    {
+      Log_VerboseFmt("Keeping GL_EXT_shader_framebuffer_fetch on Adreno version {}", major_version);
+    }
+  }
 
   // If we're missing GLES 3.2, but have OES_draw_elements_base_vertex, redirect the function pointers.
   if (!glad_glDrawElementsBaseVertex && GLAD_GL_OES_draw_elements_base_vertex && !GLAD_GL_ES_VERSION_3_2)