render/gles2: save/restore EGL context in destroy_buffer
It can be surprising that destroying a buffer changes the EGL context, especially since this can be triggered from anywhere wlr_buffer_unlock is called. Prevent this from happening by saving and restoring the EGL context.
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@ -41,6 +41,8 @@ static void destroy_buffer(struct wlr_gles2_buffer *buffer) {
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wl_list_remove(&buffer->link);
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wl_list_remove(&buffer->buffer_destroy.link);
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struct wlr_egl_context prev_ctx;
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wlr_egl_save_context(&prev_ctx);
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wlr_egl_make_current(buffer->renderer->egl);
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push_gles2_debug(buffer->renderer);
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@ -51,7 +53,9 @@ static void destroy_buffer(struct wlr_gles2_buffer *buffer) {
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pop_gles2_debug(buffer->renderer);
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wlr_egl_destroy_image(buffer->renderer->egl, buffer->image);
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wlr_egl_unset_current(buffer->renderer->egl);
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wlr_egl_restore_context(&prev_ctx);
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free(buffer);
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}
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