More emscripten stuff;

SwapInterval was removed to ensure RAF timing is used.

src/data/textureData.h

@@ -5,14 +5,6 @@
 
 #pragma once
 
-// WEBGL_compressed_texture_s3tc_srgb isn't ratified yet...
-#ifdef EMSCRIPTEN
-#define GL_COMPRESSED_SRGB_S3TC_DXT1_EXT 0x8C4C
-#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT 0x8C4D
-#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT 0x8C4E
-#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT 0x8C4F
-#endif
-
 typedef enum {
   FORMAT_RGB,
   FORMAT_RGBA,

src/graphics/graphics.c

@@ -94,7 +94,9 @@ void lovrGraphicsCreateWindow(int w, int h, bool fullscreen, int msaa, const cha
     glfwSetWindowCloseCallback(state.window, onCloseWindow);
   }
 
+#ifndef EMSCRIPTEN
   glfwSwapInterval(0);
+#endif
   glfwGetFramebufferSize(state.window, &state.width, &state.height);
   lovrGpuInit(state.gammaCorrect, glfwGetProcAddress);
   VertexFormat format;

src/graphics/opengl.c

@@ -16,6 +16,8 @@
 #if EMSCRIPTEN
 #include <GLES3/gl3.h>
 #include <GLES2/gl2ext.h>
+#include <GL/gl.h>
+#include <GL/glext.h>
 #else
 #include "lib/glad/glad.h"
 #endif