This updates gleam to a version that relies on OpenGL 3.3 (which is n…

…eeded for the instancing changes in WR - see servo/gleam@fc7e28e).

Hopefully the build machines and everyone using Servo has GL 3.3 available on their machines - if it causes any problems, we can revert this change and investigate further.

components/canvas/webgl_paint_thread.rs

@@ -349,20 +349,20 @@ impl WebGLPaintThread {
                  chan: IpcSender<WebGLResult<WebGLParameter>>) {
         let result = match param_id {
             gl::ACTIVE_TEXTURE |
-            gl::ALPHA_BITS |
+            //gl::ALPHA_BITS |
             gl::BLEND_DST_ALPHA |
             gl::BLEND_DST_RGB |
             gl::BLEND_EQUATION_ALPHA |
             gl::BLEND_EQUATION_RGB |
             gl::BLEND_SRC_ALPHA |
             gl::BLEND_SRC_RGB |
-            gl::BLUE_BITS |
+            //gl::BLUE_BITS |
             gl::CULL_FACE_MODE |
-            gl::DEPTH_BITS |
+            //gl::DEPTH_BITS |
             gl::DEPTH_FUNC |
             gl::FRONT_FACE |
-            gl::GENERATE_MIPMAP_HINT |
-            gl::GREEN_BITS |
+            //gl::GENERATE_MIPMAP_HINT |
+            //gl::GREEN_BITS |
             //gl::IMPLEMENTATION_COLOR_READ_FORMAT |
             //gl::IMPLEMENTATION_COLOR_READ_TYPE |
             gl::MAX_COMBINED_TEXTURE_IMAGE_UNITS |
@@ -376,7 +376,7 @@ impl WebGLPaintThread {
             gl::MAX_VERTEX_TEXTURE_IMAGE_UNITS |
             //gl::MAX_VERTEX_UNIFORM_VECTORS |
             gl::PACK_ALIGNMENT |
-            gl::RED_BITS |
+            //gl::RED_BITS |
             gl::SAMPLE_BUFFERS |
             gl::SAMPLES |
             gl::STENCIL_BACK_FAIL |
@@ -386,7 +386,7 @@ impl WebGLPaintThread {
             gl::STENCIL_BACK_REF |
             gl::STENCIL_BACK_VALUE_MASK |
             gl::STENCIL_BACK_WRITEMASK |
-            gl::STENCIL_BITS |
+            //gl::STENCIL_BITS |
             gl::STENCIL_CLEAR_VALUE |
             gl::STENCIL_FAIL |
             gl::STENCIL_FUNC |
@@ -427,7 +427,7 @@ impl WebGLPaintThread {
             // TODO(zbarsky, ecoal95): Implement support for the following valid parameters
             // Float32Array
             gl::ALIASED_LINE_WIDTH_RANGE |
-            gl::ALIASED_POINT_SIZE_RANGE |
+            //gl::ALIASED_POINT_SIZE_RANGE |
             //gl::BLEND_COLOR |
             gl::COLOR_CLEAR_VALUE |
             gl::DEPTH_RANGE |