glamor: Use GL_EXT_map_buffer_range if present.
We were only looking for the desktop GL version of the extension, so GLES2 missed out. Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Dave Airlie <airlied@redhat.com>
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@ -454,7 +454,8 @@ glamor_init(ScreenPtr screen, unsigned int flags)
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glamor_priv->has_fbo_blit =
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epoxy_has_gl_extension("GL_EXT_framebuffer_blit");
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glamor_priv->has_map_buffer_range =
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epoxy_has_gl_extension("GL_ARB_map_buffer_range");
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epoxy_has_gl_extension("GL_ARB_map_buffer_range") ||
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epoxy_has_gl_extension("GL_EXT_map_buffer_range");
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glamor_priv->has_buffer_storage =
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epoxy_has_gl_extension("GL_ARB_buffer_storage");
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glamor_priv->has_nv_texture_barrier =
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